Merging upstream version 1.72.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
author: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-05-30 03:57:19 +0000
committer: Daniel Baumann <daniel.baumann@progress-linux.org> 2024-05-30 03:57:19 +0000
commit: a0b8f38ab54ac451646aa00cd5e91b6c76f22a84 (patch)
tree: fc451898ccaf445814e26b46664d78702178101d /vendor/proc-macro-error
parent: Adding debian version 1.71.1+dfsg1-2. (diff)
download: rustc-a0b8f38ab54ac451646aa00cd5e91b6c76f22a84.tar.xz
rustc-a0b8f38ab54ac451646aa00cd5e91b6c76f22a84.zip
47 files changed, 0 insertions, 2535 deletions
diff --git a/vendor/proc-macro-error/.cargo-checksum.json b/vendor/proc-macro-error/.cargo-checksum.json
deleted file mode 100644
index 79bcfa696..000000000
--- a/vendor/proc-macro-error/.cargo-checksum.json
+++ /dev/null
@@ -1 +0,0 @@
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-\ No newline at end of file
diff --git a/vendor/proc-macro-error/CHANGELOG.md b/vendor/proc-macro-error/CHANGELOG.md
deleted file mode 100644
index 3c422f1c4..000000000
--- a/vendor/proc-macro-error/CHANGELOG.md
+++ /dev/null
@@ -1,162 +0,0 @@
-# v1.0.4 (2020-7-31)
-
-* `SpanRange` facility is now public.
-* Docs have been improved.
-* Introduced the `syn-error` feature so you can opt-out from the `syn` dependency.
-
-# v1.0.3 (2020-6-26)
-
-* Corrected a few typos.
-* Fixed the `emit_call_site_warning` macro.
-
-# v1.0.2 (2020-4-9)
-
-* An obsolete note was removed from documentation.
-
-# v1.0.1 (2020-4-9)
-
-* `proc-macro-hack` is now well tested and supported. Not sure about `proc-macro-nested`,
-  please fill a request if you need it.
-* Fixed `emit_call_site_error`.
-* Documentation improvements.
-
-# v1.0.0 (2020-3-25)
-
-I believe the API can be considered stable because it's been a few months without
-breaking changes, and I also don't think this crate will receive much further evolution.
-It's perfect, admit it.
-
-Hence, meet the new, stable release!
-
-### Improvements
-
-* Supported nested `#[proc_macro_error]` attributes. Well, you aren't supposed to do that,
-  but I caught myself doing it by accident on one occasion and the behavior was... surprising.
-  Better to handle this smooth.
-
-# v0.4.12 (2020-3-23)
-
-* Error message on macros' misuse is now a bit more understandable.
-
-# v0.4.11 (2020-3-02)
-
-* `build.rs` no longer fails when `rustc` date could not be determined,
-  (thanks to [`Fabian Möller`](https://gitlab.com/CreepySkeleton/proc-macro-error/issues/8)
-  for noticing and to [`Igor Gnatenko`](https://gitlab.com/CreepySkeleton/proc-macro-error/-/merge_requests/25)
-  for fixing).
-
-# v0.4.10 (2020-2-29)
-
-* `proc-macro-error` doesn't depend on syn\[full\] anymore, the compilation
-  is \~30secs faster.
-
-# v0.4.9 (2020-2-13)
-
-* New function: `append_dummy`.
-
-# v0.4.8 (2020-2-01)
-
-* Support for children messages
-
-# v0.4.7 (2020-1-31)
-
-* Now any type that implements `quote::ToTokens` can be used instead of spans.
-  This allows for high quality error messages.
-
-# v0.4.6 (2020-1-31)
-
-* `From<syn::Error>` implementation doesn't lose span info anymore, see
-  [#6](https://gitlab.com/CreepySkeleton/proc-macro-error/issues/6).
-
-# v0.4.5 (2020-1-20)
-Just a small intermediate release.
-
-* Fix some bugs.
-* Populate license files into subfolders.
-
-# v0.4.4 (2019-11-13)
-* Fix `abort_if_dirty` + warnings bug
-* Allow trailing commas in macros
-
-# v0.4.2 (2019-11-7)
-* FINALLY fixed `__pme__suggestions not found` bug
-
-# v0.4.1 (2019-11-7) YANKED
-* Fixed `__pme__suggestions not found` bug
-* Documentation improvements, links checked
-
-# v0.4.0 (2019-11-6) YANKED
-
-## New features
-* "help" messages that can have their own span on nightly, they
-    inherit parent span on stable.
-    ```rust
-    let cond_help = if condition { Some("some help message") else { None } };
-    abort!(
-        span, // parent span
-        "something's wrong, {} wrongs in total", 10; // main message
-        help = "here's a help for you, {}", "take it"; // unconditional help message
-        help =? cond_help; // conditional help message, must be Option
-        note = note_span => "don't forget the note, {}", "would you?" // notes can have their own span but it's effective only on nightly
-    )
-    ```
-* Warnings via `emit_warning` and `emit_warning_call_site`. Nightly only, they're ignored on stable.
-* Now `proc-macro-error` delegates to `proc_macro::Diagnostic` on nightly.
-
-## Breaking changes
-* `MacroError` is now replaced by `Diagnostic`. Its API resembles `proc_macro::Diagnostic`.
-* `Diagnostic` does not implement `From<&str/String>` so `Result<T, &str/String>::abort_or_exit()`
-    won't work anymore (nobody used it anyway).
-* `macro_error!` macro is replaced with `diagnostic!`.
-
-## Improvements
-* Now `proc-macro-error` renders notes exactly just like rustc does.
-* We don't parse a body of a function annotated with `#[proc_macro_error]` anymore,
-  only looking at the signature. This should somewhat decrease expansion time for large functions.
-
-# v0.3.3 (2019-10-16)
-* Now you can use any word instead of "help", undocumented.
-
-# v0.3.2 (2019-10-16)
-* Introduced support for "help" messages, undocumented.
-
-# v0.3.0 (2019-10-8)
-
-## The crate has been completely rewritten from scratch!
-
-## Changes (most are breaking):
-* Renamed macros:
-  * `span_error` => `abort`
-  * `call_site_error` => `abort_call_site`
-* `filter_macro_errors` was replaced by `#[proc_macro_error]` attribute.
-* `set_dummy` now takes `TokenStream` instead of `Option<TokenStream>`
-* Support for multiple errors via `emit_error` and `emit_call_site_error`
-* New `macro_error` macro for building errors in format=like style.
-* `MacroError` API had been reconsidered. It also now implements `quote::ToTokens`.
-
-# v0.2.6 (2019-09-02)
-* Introduce support for dummy implementations via `dummy::set_dummy`
-* `multi::*` is now deprecated, will be completely rewritten in v0.3
-
-# v0.2.0 (2019-08-15)
-
-## Breaking changes
-* `trigger_error` replaced with `MacroError::trigger` and `filter_macro_error_panics`
-  is hidden from docs.
-  This is not quite a breaking change since users weren't supposed to use these functions directly anyway.
-* All dependencies are updated to `v1.*`.
-
-## New features
-* Ability to stack multiple errors via `multi::MultiMacroErrors` and emit them at once.
-
-## Improvements
-* Now `MacroError` implements `std::fmt::Display` instead of `std::string::ToString`.
-* `MacroError::span` inherent method.
-* `From<MacroError> for proc_macro/proc_macro2::TokenStream` implementations.
-* `AsRef/AsMut<String> for MacroError` implementations.
-
-# v0.1.x (2019-07-XX)
-
-## New features
-* An easy way to report errors inside within a proc-macro via `span_error`,
-  `call_site_error` and `filter_macro_errors`.
diff --git a/vendor/proc-macro-error/Cargo.toml b/vendor/proc-macro-error/Cargo.toml
deleted file mode 100644
index 869585ffc..000000000
--- a/vendor/proc-macro-error/Cargo.toml
+++ /dev/null
@@ -1,56 +0,0 @@
-# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
-#
-# When uploading crates to the registry Cargo will automatically
-# "normalize" Cargo.toml files for maximal compatibility
-# with all versions of Cargo and also rewrite `path` dependencies
-# to registry (e.g., crates.io) dependencies
-#
-# If you believe there's an error in this file please file an
-# issue against the rust-lang/cargo repository. If you're
-# editing this file be aware that the upstream Cargo.toml
-# will likely look very different (and much more reasonable)
-
-[package]
-edition = "2018"
-name = "proc-macro-error"
-version = "1.0.4"
-authors = ["CreepySkeleton <creepy-skeleton@yandex.ru>"]
-build = "build.rs"
-description = "Almost drop-in replacement to panics in proc-macros"
-readme = "README.md"
-keywords = ["proc-macro", "error", "errors"]
-categories = ["development-tools::procedural-macro-helpers"]
-license = "MIT OR Apache-2.0"
-repository = "https://gitlab.com/CreepySkeleton/proc-macro-error"
-[package.metadata.docs.rs]
-targets = ["x86_64-unknown-linux-gnu"]
-[dependencies.proc-macro-error-attr]
-version = "=1.0.4"
-
-[dependencies.proc-macro2]
-version = "1"
-
-[dependencies.quote]
-version = "1"
-
-[dependencies.syn]
-version = "1"
-optional = true
-default-features = false
-[dev-dependencies.serde_derive]
-version = "=1.0.107"
-
-[dev-dependencies.toml]
-version = "=0.5.2"
-
-[dev-dependencies.trybuild]
-version = "1.0.19"
-features = ["diff"]
-[build-dependencies.version_check]
-version = "0.9"
-
-[features]
-default = ["syn-error"]
-syn-error = ["syn"]
-[badges.maintenance]
-status = "passively-maintained"
diff --git a/vendor/proc-macro-error/LICENSE-APACHE b/vendor/proc-macro-error/LICENSE-APACHE
deleted file mode 100644
index cc17374b2..000000000
--- a/vendor/proc-macro-error/LICENSE-APACHE
+++ /dev/null
@@ -1,201 +0,0 @@
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-                        Version 2.0, January 2004
-                     http://www.apache.org/licenses/
-
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-APPENDIX: How to apply the Apache License to your work.
-
-   To apply the Apache License to your work, attach the following
-   boilerplate notice, with the fields enclosed by brackets "[]"
-   replaced with your own identifying information. (Don't include
-   the brackets!)  The text should be enclosed in the appropriate
-   comment syntax for the file format. We also recommend that a
-   file or class name and description of purpose be included on the
-   same "printed page" as the copyright notice for easier
-   identification within third-party archives.
-
-Copyright 2019-2020 CreepySkeleton <creepy-skeleton@yandex.ru>
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
diff --git a/vendor/proc-macro-error/LICENSE-MIT b/vendor/proc-macro-error/LICENSE-MIT
deleted file mode 100644
index fc73e591d..000000000
--- a/vendor/proc-macro-error/LICENSE-MIT
+++ /dev/null
@@ -1,21 +0,0 @@
-MIT License
-
-Copyright (c) 2019-2020 CreepySkeleton
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
diff --git a/vendor/proc-macro-error/README.md b/vendor/proc-macro-error/README.md
deleted file mode 100644
index 7fbe07c53..000000000
--- a/vendor/proc-macro-error/README.md
+++ /dev/null
@@ -1,258 +0,0 @@
-# Makes error reporting in procedural macros nice and easy
-
-[![travis ci](https://travis-ci.org/CreepySkeleton/proc-macro-error.svg?branch=master)](https://travis-ci.org/CreepySkeleton/proc-macro-error)
-[![docs.rs](https://docs.rs/proc-macro-error/badge.svg)](https://docs.rs/proc-macro-error)
-[![unsafe forbidden](https://img.shields.io/badge/unsafe-forbidden-success.svg)](https://github.com/rust-secure-code/safety-dance/)
-
-This crate aims to make error reporting in proc-macros simple and easy to use.
-Migrate from `panic!`-based errors for as little effort as possible!
-
-Also, you can explicitly [append a dummy token stream][crate::dummy] to your errors.
-
-To achieve his, this crate serves as a tiny shim around `proc_macro::Diagnostic` and
-`compile_error!`. It detects the most preferable way to emit errors based on compiler's version.
-When the underlying diagnostic type is finally stabilized, this crate will be simply
-delegating to it, requiring no changes in your code!
-
-So you can just use this crate and have *both* some of `proc_macro::Diagnostic` functionality
-available on stable ahead of time and your error-reporting code future-proof.
-
-```toml
-[dependencies]
-proc-macro-error = "1.0"
-```
-
-*Supports rustc 1.31 and up*
-
-[Documentation and guide][guide]
-
-## Quick example
-
-Code:
-
-```rust
-#[proc_macro]
-#[proc_macro_error]
-pub fn make_fn(input: TokenStream) -> TokenStream {
-    let mut input = TokenStream2::from(input).into_iter();
-    let name = input.next().unwrap();
-    if let Some(second) = input.next() {
-        abort! { second,
-            "I don't like this part!";
-                note = "I see what you did there...";
-                help = "I need only one part, you know?";
-        }
-    }
-
-    quote!( fn #name() {} ).into()
-}
-```
-
-This is how the error is rendered in a terminal:
-
-<p align="center">
-<img src="https://user-images.githubusercontent.com/50968528/78830016-d3b46a80-79d6-11ea-9de2-972e8d7904ef.png" width="600">
-</p>
-
-And this is what your users will see in their IDE:
-
-<p align="center">
-<img src="https://user-images.githubusercontent.com/50968528/78830547-a9af7800-79d7-11ea-822e-59e29bda335c.png" width="600">
-</p>
-
-## Examples
-
-### Panic-like usage
-
-```rust
-use proc_macro_error::{
-    proc_macro_error,
-    abort,
-    abort_call_site,
-    ResultExt,
-    OptionExt,
-};
-use proc_macro::TokenStream;
-use syn::{DeriveInput, parse_macro_input};
-use quote::quote;
-
-// This is your main entry point
-#[proc_macro]
-// This attribute *MUST* be placed on top of the #[proc_macro] function
-#[proc_macro_error]
-pub fn make_answer(input: TokenStream) -> TokenStream {
-    let input = parse_macro_input!(input as DeriveInput);
-
-    if let Err(err) = some_logic(&input) {
-        // we've got a span to blame, let's use it
-        // This immediately aborts the proc-macro and shows the error
-        //
-        // You can use `proc_macro::Span`, `proc_macro2::Span`, and
-        // anything that implements `quote::ToTokens` (almost every type from
-        // `syn` and `proc_macro2`)
-        abort!(err, "You made an error, go fix it: {}", err.msg);
-    }
-
-    // `Result` has some handy shortcuts if your error type implements
-    // `Into<Diagnostic>`. `Option` has one unconditionally.
-    more_logic(&input).expect_or_abort("What a careless user, behave!");
-
-    if !more_logic_for_logic_god(&input) {
-        // We don't have an exact location this time,
-        // so just highlight the proc-macro invocation itself
-        abort_call_site!(
-            "Bad, bad user! Now go stand in the corner and think about what you did!");
-    }
-
-    // Now all the processing is done, return `proc_macro::TokenStream`
-    quote!(/* stuff */).into()
-}
-```
-
-### `proc_macro::Diagnostic`-like usage
-
-```rust
-use proc_macro_error::*;
-use proc_macro::TokenStream;
-use syn::{spanned::Spanned, DeriveInput, ItemStruct, Fields, Attribute , parse_macro_input};
-use quote::quote;
-
-fn process_attrs(attrs: &[Attribute]) -> Vec<Attribute> {
-    attrs
-        .iter()
-        .filter_map(|attr| match process_attr(attr) {
-            Ok(res) => Some(res),
-            Err(msg) => {
-                emit_error!(attr, "Invalid attribute: {}", msg);
-                None
-            }
-        })
-        .collect()
-}
-
-fn process_fields(_attrs: &Fields) -> Vec<TokenStream> {
-    // processing fields in pretty much the same way as attributes
-    unimplemented!()
-}
-
-#[proc_macro]
-#[proc_macro_error]
-pub fn make_answer(input: TokenStream) -> TokenStream {
-    let input = parse_macro_input!(input as ItemStruct);
-    let attrs = process_attrs(&input.attrs);
-
-    // abort right now if some errors were encountered
-    // at the attributes processing stage
-    abort_if_dirty();
-
-    let fields = process_fields(&input.fields);
-
-    // no need to think about emitted errors
-    // #[proc_macro_error] will handle them for you
-    //
-    // just return a TokenStream as you normally would
-    quote!(/* stuff */).into()
-}
-```
-
-## Real world examples
-
-* [`structopt-derive`](https://github.com/TeXitoi/structopt/tree/master/structopt-derive)
-  (abort-like usage)
-* [`auto-impl`](https://github.com/auto-impl-rs/auto_impl/) (emit-like usage)
-
-## Limitations
-
-- Warnings are emitted only on nightly, they are ignored on stable.
-- "help" suggestions can't have their own span info on stable,
-  (essentially inheriting the parent span).
-- If your macro happens to trigger a panic, no errors will be displayed. This is not a
-  technical limitation but rather intentional design. `panic` is not for error reporting.
-
-## MSRV policy
-
-`proc_macro_error` will always be compatible with proc-macro Holy Trinity:
-`proc_macro2`, `syn`, `quote` crates. In other words, if the Trinity is available
-to you - `proc_macro_error` is available too.
-
-> **Important!**
->
-> If you want to use `#[proc_macro_error]` with `synstructure`, you're going
-> to have to put the attribute inside the `decl_derive!` invocation. Unfortunately,
-> due to some bug in pre-1.34 rustc, putting proc-macro attributes inside macro
-> invocations doesn't work, so your MSRV is effectively 1.34.
-
-## Motivation
-
-Error handling in proc-macros sucks. There's not much of a choice today:
-you either "bubble up" the error up to the top-level of the macro and convert it to
-a [`compile_error!`][compl_err] invocation or just use a good old panic. Both these ways suck:
-
-- Former sucks because it's quite redundant to unroll a proper error handling
-    just for critical errors that will crash the macro anyway; so people mostly
-    choose not to bother with it at all and use panic. Simple `.expect` is too tempting.
-
-    Also, if you do decide to implement this `Result`-based architecture in your macro
-    you're going to have to rewrite it entirely once [`proc_macro::Diagnostic`][] is finally
-    stable. Not cool.
-
-- Later sucks because there's no way to carry out the span info via `panic!`.
-    `rustc` will highlight the invocation itself but not some specific token inside it.
-
-    Furthermore, panics aren't for error-reporting at all; panics are for bug-detecting
-    (like unwrapping on `None` or out-of-range indexing) or for early development stages
-    when you need a prototype ASAP so error handling can wait. Mixing these usages only
-    messes things up.
-
-- There is [`proc_macro::Diagnostic`][] which is awesome but it has been experimental
-    for more than a year and is unlikely to be stabilized any time soon.
-
-    This crate's API is intentionally designed to be compatible with `proc_macro::Diagnostic`
-    and delegates to it whenever possible. Once `Diagnostics` is stable this crate
-    will **always** delegate to it, no code changes will be required on user side.
-
-That said, we need a solution, but this solution must meet these conditions:
-
-- It must be better than `panic!`. The main point: it must offer a way to carry the span information
-    over to user.
-- It must take as little effort as possible to migrate from `panic!`. Ideally, a new
-    macro with similar semantics plus ability to carry out span info.
-- It must maintain compatibility with [`proc_macro::Diagnostic`][] .
-- **It must be usable on stable**.
-
-This crate aims to provide such a mechanism. All you have to do is annotate your top-level
-`#[proc_macro]` function with `#[proc_macro_error]` attribute and change panics to
-[`abort!`]/[`abort_call_site!`] where appropriate, see [the Guide][guide].
-
-## Disclaimer
-Please note that **this crate is not intended to be used in any way other
-than error reporting in procedural macros**, use `Result` and `?` (possibly along with one of the
-many helpers out there) for anything else.
-
-<br>
-
-#### License
-
-<sup>
-Licensed under either of <a href="LICENSE-APACHE">Apache License, Version
-2.0</a> or <a href="LICENSE-MIT">MIT license</a> at your option.
-</sup>
-
-<br>
-
-<sub>
-Unless you explicitly state otherwise, any contribution intentionally submitted
-for inclusion in this crate by you, as defined in the Apache-2.0 license, shall
-be dual licensed as above, without any additional terms or conditions.
-</sub>
-
-
-[compl_err]: https://doc.rust-lang.org/std/macro.compile_error.html
-[`proc_macro::Diagnostic`]: https://doc.rust-lang.org/proc_macro/struct.Diagnostic.html
-
-[crate::dummy]: https://docs.rs/proc-macro-error/1/proc_macro_error/dummy/index.html
-[crate::multi]: https://docs.rs/proc-macro-error/1/proc_macro_error/multi/index.html
-
-[`abort_call_site!`]: https://docs.rs/proc-macro-error/1/proc_macro_error/macro.abort_call_site.html
-[`abort!`]: https://docs.rs/proc-macro-error/1/proc_macro_error/macro.abort.html
-[guide]: https://docs.rs/proc-macro-error
diff --git a/vendor/proc-macro-error/build.rs b/vendor/proc-macro-error/build.rs
deleted file mode 100644
index 3c1196f26..000000000
--- a/vendor/proc-macro-error/build.rs
+++ /dev/null
@@ -1,11 +0,0 @@
-fn main() {
-    if !version_check::is_feature_flaggable().unwrap_or(false) {
-        println!("cargo:rustc-cfg=use_fallback");
-    }
-
-    if version_check::is_max_version("1.38.0").unwrap_or(false)
-        || !version_check::Channel::read().unwrap().is_stable()
-    {
-        println!("cargo:rustc-cfg=skip_ui_tests");
-    }
-}
diff --git a/vendor/proc-macro-error/src/diagnostic.rs b/vendor/proc-macro-error/src/diagnostic.rs
deleted file mode 100644
index 983e6174f..000000000
--- a/vendor/proc-macro-error/src/diagnostic.rs
+++ /dev/null
@@ -1,349 +0,0 @@
-use crate::{abort_now, check_correctness, sealed::Sealed, SpanRange};
-use proc_macro2::Span;
-use proc_macro2::TokenStream;
-
-use quote::{quote_spanned, ToTokens};
-
-/// Represents a diagnostic level
-///
-/// # Warnings
-///
-/// Warnings are ignored on stable/beta
-#[derive(Debug, PartialEq)]
-pub enum Level {
-    Error,
-    Warning,
-    #[doc(hidden)]
-    NonExhaustive,
-}
-
-/// Represents a single diagnostic message
-#[derive(Debug)]
-pub struct Diagnostic {
-    pub(crate) level: Level,
-    pub(crate) span_range: SpanRange,
-    pub(crate) msg: String,
-    pub(crate) suggestions: Vec<(SuggestionKind, String, Option<SpanRange>)>,
-    pub(crate) children: Vec<(SpanRange, String)>,
-}
-
-/// A collection of methods that do not exist in `proc_macro::Diagnostic`
-/// but still useful to have around.
-///
-/// This trait is sealed and cannot be implemented outside of `proc_macro_error`.
-pub trait DiagnosticExt: Sealed {
-    /// Create a new diagnostic message that points to the `span_range`.
-    ///
-    /// This function is the same as `Diagnostic::spanned` but produces considerably
-    /// better error messages for multi-token spans on stable.
-    fn spanned_range(span_range: SpanRange, level: Level, message: String) -> Self;
-
-    /// Add another error message to self such that it will be emitted right after
-    /// the main message.
-    ///
-    /// This function is the same as `Diagnostic::span_error` but produces considerably
-    /// better error messages for multi-token spans on stable.
-    fn span_range_error(self, span_range: SpanRange, msg: String) -> Self;
-
-    /// Attach a "help" note to your main message, the note will have it's own span on nightly.
-    ///
-    /// This function is the same as `Diagnostic::span_help` but produces considerably
-    /// better error messages for multi-token spans on stable.
-    ///
-    /// # Span
-    ///
-    /// The span is ignored on stable, the note effectively inherits its parent's (main message) span
-    fn span_range_help(self, span_range: SpanRange, msg: String) -> Self;
-
-    /// Attach a note to your main message, the note will have it's own span on nightly.
-    ///
-    /// This function is the same as `Diagnostic::span_note` but produces considerably
-    /// better error messages for multi-token spans on stable.
-    ///
-    /// # Span
-    ///
-    /// The span is ignored on stable, the note effectively inherits its parent's (main message) span
-    fn span_range_note(self, span_range: SpanRange, msg: String) -> Self;
-}
-
-impl DiagnosticExt for Diagnostic {
-    fn spanned_range(span_range: SpanRange, level: Level, message: String) -> Self {
-        Diagnostic {
-            level,
-            span_range,
-            msg: message,
-            suggestions: vec![],
-            children: vec![],
-        }
-    }
-
-    fn span_range_error(mut self, span_range: SpanRange, msg: String) -> Self {
-        self.children.push((span_range, msg));
-        self
-    }
-
-    fn span_range_help(mut self, span_range: SpanRange, msg: String) -> Self {
-        self.suggestions
-            .push((SuggestionKind::Help, msg, Some(span_range)));
-        self
-    }
-
-    fn span_range_note(mut self, span_range: SpanRange, msg: String) -> Self {
-        self.suggestions
-            .push((SuggestionKind::Note, msg, Some(span_range)));
-        self
-    }
-}
-
-impl Diagnostic {
-    /// Create a new diagnostic message that points to `Span::call_site()`
-    pub fn new(level: Level, message: String) -> Self {
-        Diagnostic::spanned(Span::call_site(), level, message)
-    }
-
-    /// Create a new diagnostic message that points to the `span`
-    pub fn spanned(span: Span, level: Level, message: String) -> Self {
-        Diagnostic::spanned_range(
-            SpanRange {
-                first: span,
-                last: span,
-            },
-            level,
-            message,
-        )
-    }
-
-    /// Add another error message to self such that it will be emitted right after
-    /// the main message.
-    pub fn span_error(self, span: Span, msg: String) -> Self {
-        self.span_range_error(
-            SpanRange {
-                first: span,
-                last: span,
-            },
-            msg,
-        )
-    }
-
-    /// Attach a "help" note to your main message, the note will have it's own span on nightly.
-    ///
-    /// # Span
-    ///
-    /// The span is ignored on stable, the note effectively inherits its parent's (main message) span
-    pub fn span_help(self, span: Span, msg: String) -> Self {
-        self.span_range_help(
-            SpanRange {
-                first: span,
-                last: span,
-            },
-            msg,
-        )
-    }
-
-    /// Attach a "help" note to your main message.
-    pub fn help(mut self, msg: String) -> Self {
-        self.suggestions.push((SuggestionKind::Help, msg, None));
-        self
-    }
-
-    /// Attach a note to your main message, the note will have it's own span on nightly.
-    ///
-    /// # Span
-    ///
-    /// The span is ignored on stable, the note effectively inherits its parent's (main message) span
-    pub fn span_note(self, span: Span, msg: String) -> Self {
-        self.span_range_note(
-            SpanRange {
-                first: span,
-                last: span,
-            },
-            msg,
-        )
-    }
-
-    /// Attach a note to your main message
-    pub fn note(mut self, msg: String) -> Self {
-        self.suggestions.push((SuggestionKind::Note, msg, None));
-        self
-    }
-
-    /// The message of main warning/error (no notes attached)
-    pub fn message(&self) -> &str {
-        &self.msg
-    }
-
-    /// Abort the proc-macro's execution and display the diagnostic.
-    ///
-    /// # Warnings
-    ///
-    /// Warnings are not emitted on stable and beta, but this function will abort anyway.
-    pub fn abort(self) -> ! {
-        self.emit();
-        abort_now()
-    }
-
-    /// Display the diagnostic while not aborting macro execution.
-    ///
-    /// # Warnings
-    ///
-    /// Warnings are ignored on stable/beta
-    pub fn emit(self) {
-        check_correctness();
-        crate::imp::emit_diagnostic(self);
-    }
-}
-
-/// **NOT PUBLIC API! NOTHING TO SEE HERE!!!**
-#[doc(hidden)]
-impl Diagnostic {
-    pub fn span_suggestion(self, span: Span, suggestion: &str, msg: String) -> Self {
-        match suggestion {
-            "help" | "hint" => self.span_help(span, msg),
-            _ => self.span_note(span, msg),
-        }
-    }
-
-    pub fn suggestion(self, suggestion: &str, msg: String) -> Self {
-        match suggestion {
-            "help" | "hint" => self.help(msg),
-            _ => self.note(msg),
-        }
-    }
-}
-
-impl ToTokens for Diagnostic {
-    fn to_tokens(&self, ts: &mut TokenStream) {
-        use std::borrow::Cow;
-
-        fn ensure_lf(buf: &mut String, s: &str) {
-            if s.ends_with('\n') {
-                buf.push_str(s);
-            } else {
-                buf.push_str(s);
-                buf.push('\n');
-            }
-        }
-
-        fn diag_to_tokens(
-            span_range: SpanRange,
-            level: &Level,
-            msg: &str,
-            suggestions: &[(SuggestionKind, String, Option<SpanRange>)],
-        ) -> TokenStream {
-            if *level == Level::Warning {
-                return TokenStream::new();
-            }
-
-            let message = if suggestions.is_empty() {
-                Cow::Borrowed(msg)
-            } else {
-                let mut message = String::new();
-                ensure_lf(&mut message, msg);
-                message.push('\n');
-
-                for (kind, note, _span) in suggestions {
-                    message.push_str("  = ");
-                    message.push_str(kind.name());
-                    message.push_str(": ");
-                    ensure_lf(&mut message, note);
-                }
-                message.push('\n');
-
-                Cow::Owned(message)
-            };
-
-            let mut msg = proc_macro2::Literal::string(&message);
-            msg.set_span(span_range.last);
-            let group = quote_spanned!(span_range.last=> { #msg } );
-            quote_spanned!(span_range.first=> compile_error!#group)
-        }
-
-        ts.extend(diag_to_tokens(
-            self.span_range,
-            &self.level,
-            &self.msg,
-            &self.suggestions,
-        ));
-        ts.extend(
-            self.children
-                .iter()
-                .map(|(span_range, msg)| diag_to_tokens(*span_range, &Level::Error, &msg, &[])),
-        );
-    }
-}
-
-#[derive(Debug)]
-pub(crate) enum SuggestionKind {
-    Help,
-    Note,
-}
-
-impl SuggestionKind {
-    fn name(&self) -> &'static str {
-        match self {
-            SuggestionKind::Note => "note",
-            SuggestionKind::Help => "help",
-        }
-    }
-}
-
-#[cfg(feature = "syn-error")]
-impl From<syn::Error> for Diagnostic {
-    fn from(err: syn::Error) -> Self {
-        use proc_macro2::{Delimiter, TokenTree};
-
-        fn gut_error(ts: &mut impl Iterator<Item = TokenTree>) -> Option<(SpanRange, String)> {
-            let first = match ts.next() {
-                // compile_error
-                None => return None,
-                Some(tt) => tt.span(),
-            };
-            ts.next().unwrap(); // !
-
-            let lit = match ts.next().unwrap() {
-                TokenTree::Group(group) => {
-                    // Currently `syn` builds `compile_error!` invocations
-                    // exclusively in `ident{"..."}` (braced) form which is not
-                    // followed by `;` (semicolon).
-                    //
-                    // But if it changes to `ident("...");` (parenthesized)
-                    // or `ident["..."];` (bracketed) form,
-                    // we will need to skip the `;` as well.
-                    // Highly unlikely, but better safe than sorry.
-
-                    if group.delimiter() == Delimiter::Parenthesis
-                        || group.delimiter() == Delimiter::Bracket
-                    {
-                        ts.next().unwrap(); // ;
-                    }
-
-                    match group.stream().into_iter().next().unwrap() {
-                        TokenTree::Literal(lit) => lit,
-                        _ => unreachable!(),
-                    }
-                }
-                _ => unreachable!(),
-            };
-
-            let last = lit.span();
-            let mut msg = lit.to_string();
-
-            // "abc" => abc
-            msg.pop();
-            msg.remove(0);
-
-            Some((SpanRange { first, last }, msg))
-        }
-
-        let mut ts = err.to_compile_error().into_iter();
-
-        let (span_range, msg) = gut_error(&mut ts).unwrap();
-        let mut res = Diagnostic::spanned_range(span_range, Level::Error, msg);
-
-        while let Some((span_range, msg)) = gut_error(&mut ts) {
-            res = res.span_range_error(span_range, msg);
-        }
-
-        res
-    }
-}
diff --git a/vendor/proc-macro-error/src/dummy.rs b/vendor/proc-macro-error/src/dummy.rs
deleted file mode 100644
index 571a595aa..000000000
--- a/vendor/proc-macro-error/src/dummy.rs
+++ /dev/null
@@ -1,150 +0,0 @@
-//! Facility to emit dummy implementations (or whatever) in case
-//! an error happen.
-//!
-//! `compile_error!` does not abort a compilation right away. This means
-//! `rustc` doesn't just show you the error and abort, it carries on the
-//! compilation process looking for other errors to report.
-//!
-//! Let's consider an example:
-//!
-//! ```rust,ignore
-//! use proc_macro::TokenStream;
-//! use proc_macro_error::*;
-//!
-//! trait MyTrait {
-//!     fn do_thing();
-//! }
-//!
-//! // this proc macro is supposed to generate MyTrait impl
-//! #[proc_macro_derive(MyTrait)]
-//! #[proc_macro_error]
-//! fn example(input: TokenStream) -> TokenStream {
-//!     // somewhere deep inside
-//!     abort!(span, "something's wrong");
-//!
-//!     // this implementation will be generated if no error happened
-//!     quote! {
-//!         impl MyTrait for #name {
-//!             fn do_thing() {/* whatever */}
-//!         }
-//!     }
-//! }
-//!
-//! // ================
-//! // in main.rs
-//!
-//! // this derive triggers an error
-//! #[derive(MyTrait)] // first BOOM!
-//! struct Foo;
-//!
-//! fn main() {
-//!     Foo::do_thing(); // second BOOM!
-//! }
-//! ```
-//!
-//! The problem is: the generated token stream contains only `compile_error!`
-//! invocation, the impl was not generated. That means user will see two compilation
-//! errors:
-//!
-//! ```text
-//! error: something's wrong
-//!  --> $DIR/probe.rs:9:10
-//!   |
-//! 9 |#[proc_macro_derive(MyTrait)]
-//!   |                    ^^^^^^^
-//!
-//! error[E0599]: no function or associated item named `do_thing` found for type `Foo` in the current scope
-//!  --> src\main.rs:3:10
-//!   |
-//! 1 | struct Foo;
-//!   | ----------- function or associated item `do_thing` not found for this
-//! 2 | fn main() {
-//! 3 |     Foo::do_thing(); // second BOOM!
-//!   |          ^^^^^^^^ function or associated item not found in `Foo`
-//! ```
-//!
-//! But the second error is meaningless! We definitely need to fix this.
-//!
-//! Most used approach in cases like this is "dummy implementation" -
-//! omit `impl MyTrait for #name` and fill functions bodies with `unimplemented!()`.
-//!
-//! This is how you do it:
-//!
-//! ```rust,ignore
-//! use proc_macro::TokenStream;
-//! use proc_macro_error::*;
-//!
-//!  trait MyTrait {
-//!      fn do_thing();
-//!  }
-//!
-//!  // this proc macro is supposed to generate MyTrait impl
-//!  #[proc_macro_derive(MyTrait)]
-//!  #[proc_macro_error]
-//!  fn example(input: TokenStream) -> TokenStream {
-//!      // first of all - we set a dummy impl which will be appended to
-//!      // `compile_error!` invocations in case a trigger does happen
-//!      set_dummy(quote! {
-//!          impl MyTrait for #name {
-//!              fn do_thing() { unimplemented!() }
-//!          }
-//!      });
-//!
-//!      // somewhere deep inside
-//!      abort!(span, "something's wrong");
-//!
-//!      // this implementation will be generated if no error happened
-//!      quote! {
-//!          impl MyTrait for #name {
-//!              fn do_thing() {/* whatever */}
-//!          }
-//!      }
-//!  }
-//!
-//!  // ================
-//!  // in main.rs
-//!
-//!  // this derive triggers an error
-//!  #[derive(MyTrait)] // first BOOM!
-//!  struct Foo;
-//!
-//!  fn main() {
-//!      Foo::do_thing(); // no more errors!
-//!  }
-//! ```
-
-use proc_macro2::TokenStream;
-use std::cell::RefCell;
-
-use crate::check_correctness;
-
-thread_local! {
-    static DUMMY_IMPL: RefCell<Option<TokenStream>> = RefCell::new(None);
-}
-
-/// Sets dummy token stream which will be appended to `compile_error!(msg);...`
-/// invocations in case you'll emit any errors.
-///
-/// See [guide](../index.html#guide).
-pub fn set_dummy(dummy: TokenStream) -> Option<TokenStream> {
-    check_correctness();
-    DUMMY_IMPL.with(|old_dummy| old_dummy.replace(Some(dummy)))
-}
-
-/// Same as [`set_dummy`] but, instead of resetting, appends tokens to the
-/// existing dummy (if any). Behaves as `set_dummy` if no dummy is present.
-pub fn append_dummy(dummy: TokenStream) {
-    check_correctness();
-    DUMMY_IMPL.with(|old_dummy| {
-        let mut cell = old_dummy.borrow_mut();
-        if let Some(ts) = cell.as_mut() {
-            ts.extend(dummy);
-        } else {
-            *cell = Some(dummy);
-        }
-    });
-}
-
-pub(crate) fn cleanup() -> Option<TokenStream> {
-    DUMMY_IMPL.with(|old_dummy| old_dummy.replace(None))
-}
diff --git a/vendor/proc-macro-error/src/imp/delegate.rs b/vendor/proc-macro-error/src/imp/delegate.rs
deleted file mode 100644
index 07def2b98..000000000
--- a/vendor/proc-macro-error/src/imp/delegate.rs
+++ /dev/null
@@ -1,69 +0,0 @@
-//! This implementation uses [`proc_macro::Diagnostic`], nightly only.
-
-use std::cell::Cell;
-
-use proc_macro::{Diagnostic as PDiag, Level as PLevel};
-
-use crate::{
-    abort_now, check_correctness,
-    diagnostic::{Diagnostic, Level, SuggestionKind},
-};
-
-pub fn abort_if_dirty() {
-    check_correctness();
-    if IS_DIRTY.with(|c| c.get()) {
-        abort_now()
-    }
-}
-
-pub(crate) fn cleanup() -> Vec<Diagnostic> {
-    IS_DIRTY.with(|c| c.set(false));
-    vec![]
-}
-
-pub(crate) fn emit_diagnostic(diag: Diagnostic) {
-    let Diagnostic {
-        level,
-        span_range,
-        msg,
-        suggestions,
-        children,
-    } = diag;
-
-    let span = span_range.collapse().unwrap();
-
-    let level = match level {
-        Level::Warning => PLevel::Warning,
-        Level::Error => {
-            IS_DIRTY.with(|c| c.set(true));
-            PLevel::Error
-        }
-        _ => unreachable!(),
-    };
-
-    let mut res = PDiag::spanned(span, level, msg);
-
-    for (kind, msg, span) in suggestions {
-        res = match (kind, span) {
-            (SuggestionKind::Note, Some(span_range)) => {
-                res.span_note(span_range.collapse().unwrap(), msg)
-            }
-            (SuggestionKind::Help, Some(span_range)) => {
-                res.span_help(span_range.collapse().unwrap(), msg)
-            }
-            (SuggestionKind::Note, None) => res.note(msg),
-            (SuggestionKind::Help, None) => res.help(msg),
-        }
-    }
-
-    for (span_range, msg) in children {
-        let span = span_range.collapse().unwrap();
-        res = res.span_error(span, msg);
-    }
-
-    res.emit()
-}
-
-thread_local! {
-    static IS_DIRTY: Cell<bool> = Cell::new(false);
-}
diff --git a/vendor/proc-macro-error/src/imp/fallback.rs b/vendor/proc-macro-error/src/imp/fallback.rs
deleted file mode 100644
index ad1f730bf..000000000
--- a/vendor/proc-macro-error/src/imp/fallback.rs
+++ /dev/null
@@ -1,30 +0,0 @@
-//! This implementation uses self-written stable facilities.
-
-use crate::{
-    abort_now, check_correctness,
-    diagnostic::{Diagnostic, Level},
-};
-use std::cell::RefCell;
-
-pub fn abort_if_dirty() {
-    check_correctness();
-    ERR_STORAGE.with(|storage| {
-        if !storage.borrow().is_empty() {
-            abort_now()
-        }
-    });
-}
-
-pub(crate) fn cleanup() -> Vec<Diagnostic> {
-    ERR_STORAGE.with(|storage| storage.replace(Vec::new()))
-}
-
-pub(crate) fn emit_diagnostic(diag: Diagnostic) {
-    if diag.level == Level::Error {
-        ERR_STORAGE.with(|storage| storage.borrow_mut().push(diag));
-    }
-}
-
-thread_local! {
-    static ERR_STORAGE: RefCell<Vec<Diagnostic>> = RefCell::new(Vec::new());
-}
diff --git a/vendor/proc-macro-error/src/lib.rs b/vendor/proc-macro-error/src/lib.rs
deleted file mode 100644
index fb867fdc0..000000000
--- a/vendor/proc-macro-error/src/lib.rs
+++ /dev/null
@@ -1,560 +0,0 @@
-//! # proc-macro-error
-//!
-//! This crate aims to make error reporting in proc-macros simple and easy to use.
-//! Migrate from `panic!`-based errors for as little effort as possible!
-//!
-//! (Also, you can explicitly [append a dummy token stream](dummy/index.html) to your errors).
-//!
-//! To achieve his, this crate serves as a tiny shim around `proc_macro::Diagnostic` and
-//! `compile_error!`. It detects the best way of emitting available based on compiler's version.
-//! When the underlying diagnostic type is finally stabilized, this crate will simply be
-//! delegating to it requiring no changes in your code!
-//!
-//! So you can just use this crate and have *both* some of `proc_macro::Diagnostic` functionality
-//! available on stable ahead of time *and* your error-reporting code future-proof.
-//!
-//! ## Cargo features
-//!
-//! This crate provides *enabled by default* `syn-error` feature that gates
-//! `impl From<syn::Error> for Diagnostic` conversion. If you don't use `syn` and want
-//! to cut off some of compilation time, you can disable it via
-//!
-//! ```toml
-//! [dependencies]
-//! proc-macro-error = { version = "1", default-features = false }
-//! ```
-//!
-//! ***Please note that disabling this feature makes sense only if you don't depend on `syn`
-//! directly or indirectly, and you very likely do.**
-//!
-//! ## Real world examples
-//!
-//! * [`structopt-derive`](https://github.com/TeXitoi/structopt/tree/master/structopt-derive)
-//!   (abort-like usage)
-//! * [`auto-impl`](https://github.com/auto-impl-rs/auto_impl/) (emit-like usage)
-//!
-//! ## Limitations
-//!
-//! - Warnings are emitted only on nightly, they are ignored on stable.
-//! - "help" suggestions can't have their own span info on stable,
-//!   (essentially inheriting the parent span).
-//! - If a panic occurs somewhere in your macro no errors will be displayed. This is not a
-//!   technical limitation but rather intentional design. `panic` is not for error reporting.
-//!
-//! ### `#[proc_macro_error]` attribute
-//!
-//! **This attribute MUST be present on the top level of your macro** (the function
-//! annotated with any of `#[proc_macro]`, `#[proc_macro_derive]`, `#[proc_macro_attribute]`).
-//!
-//! This attribute performs the setup and cleanup necessary to make things work.
-//!
-//! In most cases you'll need the simple `#[proc_macro_error]` form without any
-//! additional settings. Feel free to [skip the "Syntax" section](#macros).
-//!
-//! #### Syntax
-//!
-//! `#[proc_macro_error]` or `#[proc_macro_error(settings...)]`, where `settings...`
-//! is a comma-separated list of:
-//!
-//! - `proc_macro_hack`:
-//!
-//!     In order to correctly cooperate with `#[proc_macro_hack]`, `#[proc_macro_error]`
-//!     attribute must be placed *before* (above) it, like this:
-//!
-//!     ```no_run
-//!     # use proc_macro2::TokenStream;
-//!     # const IGNORE: &str = "
-//!     #[proc_macro_error]
-//!     #[proc_macro_hack]
-//!     #[proc_macro]
-//!     # ";
-//!     fn my_macro(input: TokenStream) -> TokenStream {
-//!         unimplemented!()
-//!     }
-//!     ```
-//!
-//!     If, for some reason, you can't place it like that you can use
-//!     `#[proc_macro_error(proc_macro_hack)]` instead.
-//!
-//!     # Note
-//!
-//!     If `proc-macro-hack` was detected (by any means) `allow_not_macro`
-//!     and `assert_unwind_safe` will be applied automatically.
-//!
-//! - `allow_not_macro`:
-//!
-//!     By default, the attribute checks that it's applied to a proc-macro.
-//!     If none of `#[proc_macro]`, `#[proc_macro_derive]` nor `#[proc_macro_attribute]` are
-//!     present it will panic. It's the intention - this crate is supposed to be used only with
-//!     proc-macros.
-//!
-//!     This setting is made to bypass the check, useful in certain circumstances.
-//!
-//!     Pay attention: the function this attribute is applied to must return
-//!     `proc_macro::TokenStream`.
-//!
-//!     This setting is implied if `proc-macro-hack` was detected.
-//!
-//! - `assert_unwind_safe`:
-//!
-//!     By default, your code must be [unwind safe]. If your code is not unwind safe,
-//!     but you believe it's correct, you can use this setting to bypass the check.
-//!     You would need this for code that uses `lazy_static` or `thread_local` with
-//!     `Cell/RefCell` inside (and the like).
-//!
-//!     This setting is implied if `#[proc_macro_error]` is applied to a function
-//!     marked as `#[proc_macro]`, `#[proc_macro_derive]` or `#[proc_macro_attribute]`.
-//!
-//!     This setting is also implied if `proc-macro-hack` was detected.
-//!
-//! ## Macros
-//!
-//! Most of the time you want to use the macros. Syntax is described in the next section below.
-//!
-//! You'll need to decide how you want to emit errors:
-//!
-//! * Emit the error and abort. Very much panic-like usage. Served by [`abort!`] and
-//!   [`abort_call_site!`].
-//! * Emit the error but do not abort right away, looking for other errors to report.
-//!   Served by [`emit_error!`] and [`emit_call_site_error!`].
-//!
-//! You **can** mix these usages.
-//!
-//! `abort` and `emit_error` take a "source span" as the first argument. This source
-//! will be used to highlight the place the error originates from. It must be one of:
-//!
-//! * *Something* that implements [`ToTokens`] (most types in `syn` and `proc-macro2` do).
-//!   This source is the preferable one since it doesn't lose span information on multi-token
-//!   spans, see [this issue](https://gitlab.com/CreepySkeleton/proc-macro-error/-/issues/6)
-//!   for details.
-//! * [`proc_macro::Span`]
-//! * [`proc-macro2::Span`]
-//!
-//! The rest is your message in format-like style.
-//!
-//! See [the next section](#syntax-1) for detailed syntax.
-//!
-//! - [`abort!`]:
-//!
-//!     Very much panic-like usage - abort right away and show the error.
-//!     Expands to [`!`] (never type).
-//!
-//! - [`abort_call_site!`]:
-//!
-//!     Shortcut for `abort!(Span::call_site(), ...)`. Expands to [`!`] (never type).
-//!
-//! - [`emit_error!`]:
-//!
-//!     [`proc_macro::Diagnostic`]-like usage - emit the error but keep going,
-//!     looking for other errors to report.
-//!     The compilation will fail nonetheless. Expands to [`()`] (unit type).
-//!
-//! - [`emit_call_site_error!`]:
-//!
-//!     Shortcut for `emit_error!(Span::call_site(), ...)`. Expands to [`()`] (unit type).
-//!
-//! - [`emit_warning!`]:
-//!
-//!     Like `emit_error!` but emit a warning instead of error. The compilation won't fail
-//!     because of warnings.
-//!     Expands to [`()`] (unit type).
-//!
-//!     **Beware**: warnings are nightly only, they are completely ignored on stable.
-//!
-//! - [`emit_call_site_warning!`]:
-//!
-//!     Shortcut for `emit_warning!(Span::call_site(), ...)`. Expands to [`()`] (unit type).
-//!
-//! - [`diagnostic`]:
-//!
-//!     Build an instance of `Diagnostic` in format-like style.
-//!
-//! #### Syntax
-//!
-//! All the macros have pretty much the same syntax:
-//!
-//! 1.  ```ignore
-//!     abort!(single_expr)
-//!     ```
-//!     Shortcut for `Diagnostic::from(expr).abort()`.
-//!
-//! 2.  ```ignore
-//!     abort!(span, message)
-//!     ```
-//!     The first argument is an expression the span info should be taken from.
-//!
-//!     The second argument is the error message, it must implement [`ToString`].
-//!
-//! 3.  ```ignore
-//!     abort!(span, format_literal, format_args...)
-//!     ```
-//!
-//!     This form is pretty much the same as 2, except `format!(format_literal, format_args...)`
-//!     will be used to for the message instead of [`ToString`].
-//!
-//! That's it. `abort!`, `emit_warning`, `emit_error` share this exact syntax.
-//!
-//! `abort_call_site!`, `emit_call_site_warning`, `emit_call_site_error` lack 1 form
-//! and do not take span in 2'th and 3'th forms. Those are essentially shortcuts for
-//! `macro!(Span::call_site(), args...)`.
-//!
-//! `diagnostic!` requires a [`Level`] instance between `span` and second argument
-//! (1'th form is the same).
-//!
-//! > **Important!**
-//! >
-//! > If you have some type from `proc_macro` or `syn` to point to, do not call `.span()`
-//! > on it but rather use it directly:
-//! > ```no_run
-//! > # use proc_macro_error::abort;
-//! > # let input = proc_macro2::TokenStream::new();
-//! > let ty: syn::Type = syn::parse2(input).unwrap();
-//! > abort!(ty, "BOOM");
-//! > //     ^^ <-- avoid .span()
-//! > ```
-//! >
-//! > `.span()` calls work too, but you may experience regressions in message quality.
-//!
-//! #### Note attachments
-//!
-//! 3.  Every macro can have "note" attachments (only 2 and 3 form).
-//!   ```ignore
-//!   let opt_help = if have_some_info { Some("did you mean `this`?") } else { None };
-//!
-//!   abort!(
-//!       span, message; // <--- attachments start with `;` (semicolon)
-//!
-//!       help = "format {} {}", "arg1", "arg2"; // <--- every attachment ends with `;`,
-//!                                              //      maybe except the last one
-//!
-//!       note = "to_string"; // <--- one arg uses `.to_string()` instead of `format!()`
-//!
-//!       yay = "I see what {} did here", "you"; // <--- "help =" and "hint =" are mapped
-//!                                              // to Diagnostic::help,
-//!                                              // anything else is Diagnostic::note
-//!
-//!       wow = note_span => "custom span"; // <--- attachments can have their own span
-//!                                         //      it takes effect only on nightly though
-//!
-//!       hint =? opt_help; // <-- "optional" attachment, get displayed only if `Some`
-//!                         //     must be single `Option` expression
-//!
-//!       note =? note_span => opt_help // <-- optional attachments can have custom spans too
-//!   );
-//!   ```
-//!
-
-//! ### Diagnostic type
-//!
-//! [`Diagnostic`] type is intentionally designed to be API compatible with [`proc_macro::Diagnostic`].
-//! Not all API is implemented, only the part that can be reasonably implemented on stable.
-//!
-//!
-//! [`abort!`]: macro.abort.html
-//! [`abort_call_site!`]: macro.abort_call_site.html
-//! [`emit_warning!`]: macro.emit_warning.html
-//! [`emit_error!`]: macro.emit_error.html
-//! [`emit_call_site_warning!`]: macro.emit_call_site_error.html
-//! [`emit_call_site_error!`]: macro.emit_call_site_warning.html
-//! [`diagnostic!`]: macro.diagnostic.html
-//! [`Diagnostic`]: struct.Diagnostic.html
-//!
-//! [`proc_macro::Span`]: https://doc.rust-lang.org/proc_macro/struct.Span.html
-//! [`proc_macro::Diagnostic`]: https://doc.rust-lang.org/proc_macro/struct.Diagnostic.html
-//!
-//! [unwind safe]: https://doc.rust-lang.org/std/panic/trait.UnwindSafe.html#what-is-unwind-safety
-//! [`!`]: https://doc.rust-lang.org/std/primitive.never.html
-//! [`()`]: https://doc.rust-lang.org/std/primitive.unit.html
-//! [`ToString`]: https://doc.rust-lang.org/std/string/trait.ToString.html
-//!
-//! [`proc-macro2::Span`]: https://docs.rs/proc-macro2/1.0.10/proc_macro2/struct.Span.html
-//! [`ToTokens`]: https://docs.rs/quote/1.0.3/quote/trait.ToTokens.html
-//!
-
-#![cfg_attr(not(use_fallback), feature(proc_macro_diagnostic))]
-#![forbid(unsafe_code)]
-#![allow(clippy::needless_doctest_main)]
-
-extern crate proc_macro;
-
-pub use crate::{
-    diagnostic::{Diagnostic, DiagnosticExt, Level},
-    dummy::{append_dummy, set_dummy},
-};
-pub use proc_macro_error_attr::proc_macro_error;
-
-use proc_macro2::Span;
-use quote::{quote, ToTokens};
-
-use std::cell::Cell;
-use std::panic::{catch_unwind, resume_unwind, UnwindSafe};
-
-pub mod dummy;
-
-mod diagnostic;
-mod macros;
-mod sealed;
-
-#[cfg(use_fallback)]
-#[path = "imp/fallback.rs"]
-mod imp;
-
-#[cfg(not(use_fallback))]
-#[path = "imp/delegate.rs"]
-mod imp;
-
-#[derive(Debug, Clone, Copy)]
-pub struct SpanRange {
-    pub first: Span,
-    pub last: Span,
-}
-
-impl SpanRange {
-    /// Create a range with the `first` and `last` spans being the same.
-    pub fn single_span(span: Span) -> Self {
-        SpanRange {
-            first: span,
-            last: span,
-        }
-    }
-
-    /// Create a `SpanRange` resolving at call site.
-    pub fn call_site() -> Self {
-        SpanRange::single_span(Span::call_site())
-    }
-
-    /// Construct span range from a `TokenStream`. This method always preserves all the
-    /// range.
-    ///
-    /// ### Note
-    ///
-    /// If the stream is empty, the result is `SpanRange::call_site()`. If the stream
-    /// consists of only one `TokenTree`, the result is `SpanRange::single_span(tt.span())`
-    /// that doesn't lose anything.
-    pub fn from_tokens(ts: &dyn ToTokens) -> Self {
-        let mut spans = ts.to_token_stream().into_iter().map(|tt| tt.span());
-        let first = spans.next().unwrap_or_else(|| Span::call_site());
-        let last = spans.last().unwrap_or(first);
-
-        SpanRange { first, last }
-    }
-
-    /// Join two span ranges. The resulting range will start at `self.first` and end at
-    /// `other.last`.
-    pub fn join_range(self, other: SpanRange) -> Self {
-        SpanRange {
-            first: self.first,
-            last: other.last,
-        }
-    }
-
-    /// Collapse the range into single span, preserving as much information as possible.
-    pub fn collapse(self) -> Span {
-        self.first.join(self.last).unwrap_or(self.first)
-    }
-}
-
-/// This traits expands `Result<T, Into<Diagnostic>>` with some handy shortcuts.
-pub trait ResultExt {
-    type Ok;
-
-    /// Behaves like `Result::unwrap`: if self is `Ok` yield the contained value,
-    /// otherwise abort macro execution via `abort!`.
-    fn unwrap_or_abort(self) -> Self::Ok;
-
-    /// Behaves like `Result::expect`: if self is `Ok` yield the contained value,
-    /// otherwise abort macro execution via `abort!`.
-    /// If it aborts then resulting error message will be preceded with `message`.
-    fn expect_or_abort(self, msg: &str) -> Self::Ok;
-}
-
-/// This traits expands `Option` with some handy shortcuts.
-pub trait OptionExt {
-    type Some;
-
-    /// Behaves like `Option::expect`: if self is `Some` yield the contained value,
-    /// otherwise abort macro execution via `abort_call_site!`.
-    /// If it aborts the `message` will be used for [`compile_error!`][compl_err] invocation.
-    ///
-    /// [compl_err]: https://doc.rust-lang.org/std/macro.compile_error.html
-    fn expect_or_abort(self, msg: &str) -> Self::Some;
-}
-
-/// Abort macro execution and display all the emitted errors, if any.
-///
-/// Does nothing if no errors were emitted (warnings do not count).
-pub fn abort_if_dirty() {
-    imp::abort_if_dirty();
-}
-
-impl<T, E: Into<Diagnostic>> ResultExt for Result<T, E> {
-    type Ok = T;
-
-    fn unwrap_or_abort(self) -> T {
-        match self {
-            Ok(res) => res,
-            Err(e) => e.into().abort(),
-        }
-    }
-
-    fn expect_or_abort(self, message: &str) -> T {
-        match self {
-            Ok(res) => res,
-            Err(e) => {
-                let mut e = e.into();
-                e.msg = format!("{}: {}", message, e.msg);
-                e.abort()
-            }
-        }
-    }
-}
-
-impl<T> OptionExt for Option<T> {
-    type Some = T;
-
-    fn expect_or_abort(self, message: &str) -> T {
-        match self {
-            Some(res) => res,
-            None => abort_call_site!(message),
-        }
-    }
-}
-
-/// This is the entry point for a proc-macro.
-///
-/// **NOT PUBLIC API, SUBJECT TO CHANGE WITHOUT ANY NOTICE**
-#[doc(hidden)]
-pub fn entry_point<F>(f: F, proc_macro_hack: bool) -> proc_macro::TokenStream
-where
-    F: FnOnce() -> proc_macro::TokenStream + UnwindSafe,
-{
-    ENTERED_ENTRY_POINT.with(|flag| flag.set(flag.get() + 1));
-    let caught = catch_unwind(f);
-    let dummy = dummy::cleanup();
-    let err_storage = imp::cleanup();
-    ENTERED_ENTRY_POINT.with(|flag| flag.set(flag.get() - 1));
-
-    let gen_error = || {
-        if proc_macro_hack {
-            quote! {{
-                macro_rules! proc_macro_call {
-                    () => ( unimplemented!() )
-                }
-
-                #(#err_storage)*
-                #dummy
-
-                unimplemented!()
-            }}
-        } else {
-            quote!( #(#err_storage)* #dummy )
-        }
-    };
-
-    match caught {
-        Ok(ts) => {
-            if err_storage.is_empty() {
-                ts
-            } else {
-                gen_error().into()
-            }
-        }
-
-        Err(boxed) => match boxed.downcast::<AbortNow>() {
-            Ok(_) => gen_error().into(),
-            Err(boxed) => resume_unwind(boxed),
-        },
-    }
-}
-
-fn abort_now() -> ! {
-    check_correctness();
-    panic!(AbortNow)
-}
-
-thread_local! {
-    static ENTERED_ENTRY_POINT: Cell<usize> = Cell::new(0);
-}
-
-struct AbortNow;
-
-fn check_correctness() {
-    if ENTERED_ENTRY_POINT.with(|flag| flag.get()) == 0 {
-        panic!(
-            "proc-macro-error API cannot be used outside of `entry_point` invocation, \
-             perhaps you forgot to annotate your #[proc_macro] function with `#[proc_macro_error]"
-        );
-    }
-}
-
-/// **ALL THE STUFF INSIDE IS NOT PUBLIC API!!!**
-#[doc(hidden)]
-pub mod __export {
-    // reexports for use in macros
-    pub extern crate proc_macro;
-    pub extern crate proc_macro2;
-
-    use proc_macro2::Span;
-    use quote::ToTokens;
-
-    use crate::SpanRange;
-
-    // inspired by
-    // https://github.com/dtolnay/case-studies/blob/master/autoref-specialization/README.md#simple-application
-
-    pub trait SpanAsSpanRange {
-        #[allow(non_snake_case)]
-        fn FIRST_ARG_MUST_EITHER_BE_Span_OR_IMPLEMENT_ToTokens_OR_BE_SpanRange(&self) -> SpanRange;
-    }
-
-    pub trait Span2AsSpanRange {
-        #[allow(non_snake_case)]
-        fn FIRST_ARG_MUST_EITHER_BE_Span_OR_IMPLEMENT_ToTokens_OR_BE_SpanRange(&self) -> SpanRange;
-    }
-
-    pub trait ToTokensAsSpanRange {
-        #[allow(non_snake_case)]
-        fn FIRST_ARG_MUST_EITHER_BE_Span_OR_IMPLEMENT_ToTokens_OR_BE_SpanRange(&self) -> SpanRange;
-    }
-
-    pub trait SpanRangeAsSpanRange {
-        #[allow(non_snake_case)]
-        fn FIRST_ARG_MUST_EITHER_BE_Span_OR_IMPLEMENT_ToTokens_OR_BE_SpanRange(&self) -> SpanRange;
-    }
-
-    impl<T: ToTokens> ToTokensAsSpanRange for &T {
-        fn FIRST_ARG_MUST_EITHER_BE_Span_OR_IMPLEMENT_ToTokens_OR_BE_SpanRange(&self) -> SpanRange {
-            let mut ts = self.to_token_stream().into_iter();
-            let first = ts
-                .next()
-                .map(|tt| tt.span())
-                .unwrap_or_else(Span::call_site);
-            let last = ts.last().map(|tt| tt.span()).unwrap_or(first);
-            SpanRange { first, last }
-        }
-    }
-
-    impl Span2AsSpanRange for Span {
-        fn FIRST_ARG_MUST_EITHER_BE_Span_OR_IMPLEMENT_ToTokens_OR_BE_SpanRange(&self) -> SpanRange {
-            SpanRange {
-                first: *self,
-                last: *self,
-            }
-        }
-    }
-
-    impl SpanAsSpanRange for proc_macro::Span {
-        fn FIRST_ARG_MUST_EITHER_BE_Span_OR_IMPLEMENT_ToTokens_OR_BE_SpanRange(&self) -> SpanRange {
-            SpanRange {
-                first: self.clone().into(),
-                last: self.clone().into(),
-            }
-        }
-    }
-
-    impl SpanRangeAsSpanRange for SpanRange {
-        fn FIRST_ARG_MUST_EITHER_BE_Span_OR_IMPLEMENT_ToTokens_OR_BE_SpanRange(&self) -> SpanRange {
-            *self
-        }
-    }
-}
diff --git a/vendor/proc-macro-error/src/macros.rs b/vendor/proc-macro-error/src/macros.rs
deleted file mode 100644
index 747b684d5..000000000
--- a/vendor/proc-macro-error/src/macros.rs
+++ /dev/null
@@ -1,288 +0,0 @@
-// FIXME: this can be greatly simplified via $()?
-// as soon as MRSV hits 1.32
-
-/// Build [`Diagnostic`](struct.Diagnostic.html) instance from provided arguments.
-///
-/// # Syntax
-///
-/// See [the guide](index.html#guide).
-///
-#[macro_export]
-macro_rules! diagnostic {
-    // from alias
-    ($err:expr) => { $crate::Diagnostic::from($err) };
-
-    // span, message, help
-    ($span:expr, $level:expr, $fmt:expr, $($args:expr),+ ; $($rest:tt)+) => {{
-        #[allow(unused_imports)]
-        use $crate::__export::{
-            ToTokensAsSpanRange,
-            Span2AsSpanRange,
-            SpanAsSpanRange,
-            SpanRangeAsSpanRange
-        };
-        use $crate::DiagnosticExt;
-        let span_range = (&$span).FIRST_ARG_MUST_EITHER_BE_Span_OR_IMPLEMENT_ToTokens_OR_BE_SpanRange();
-
-        let diag = $crate::Diagnostic::spanned_range(
-            span_range,
-            $level,
-            format!($fmt, $($args),*)
-        );
-        $crate::__pme__suggestions!(diag $($rest)*);
-        diag
-    }};
-
-    ($span:expr, $level:expr, $msg:expr ; $($rest:tt)+) => {{
-        #[allow(unused_imports)]
-        use $crate::__export::{
-            ToTokensAsSpanRange,
-            Span2AsSpanRange,
-            SpanAsSpanRange,
-            SpanRangeAsSpanRange
-        };
-        use $crate::DiagnosticExt;
-        let span_range = (&$span).FIRST_ARG_MUST_EITHER_BE_Span_OR_IMPLEMENT_ToTokens_OR_BE_SpanRange();
-
-        let diag = $crate::Diagnostic::spanned_range(span_range, $level, $msg.to_string());
-        $crate::__pme__suggestions!(diag $($rest)*);
-        diag
-    }};
-
-    // span, message, no help
-    ($span:expr, $level:expr, $fmt:expr, $($args:expr),+) => {{
-        #[allow(unused_imports)]
-        use $crate::__export::{
-            ToTokensAsSpanRange,
-            Span2AsSpanRange,
-            SpanAsSpanRange,
-            SpanRangeAsSpanRange
-        };
-        use $crate::DiagnosticExt;
-        let span_range = (&$span).FIRST_ARG_MUST_EITHER_BE_Span_OR_IMPLEMENT_ToTokens_OR_BE_SpanRange();
-
-        $crate::Diagnostic::spanned_range(
-            span_range,
-            $level,
-            format!($fmt, $($args),*)
-        )
-    }};
-
-    ($span:expr, $level:expr, $msg:expr) => {{
-        #[allow(unused_imports)]
-        use $crate::__export::{
-            ToTokensAsSpanRange,
-            Span2AsSpanRange,
-            SpanAsSpanRange,
-            SpanRangeAsSpanRange
-        };
-        use $crate::DiagnosticExt;
-        let span_range = (&$span).FIRST_ARG_MUST_EITHER_BE_Span_OR_IMPLEMENT_ToTokens_OR_BE_SpanRange();
-
-        $crate::Diagnostic::spanned_range(span_range, $level, $msg.to_string())
-    }};
-
-
-    // trailing commas
-
-    ($span:expr, $level:expr, $fmt:expr, $($args:expr),+, ; $($rest:tt)+) => {
-        $crate::diagnostic!($span, $level, $fmt, $($args),* ; $($rest)*)
-    };
-    ($span:expr, $level:expr, $msg:expr, ; $($rest:tt)+) => {
-        $crate::diagnostic!($span, $level, $msg ; $($rest)*)
-    };
-    ($span:expr, $level:expr, $fmt:expr, $($args:expr),+,) => {
-        $crate::diagnostic!($span, $level, $fmt, $($args),*)
-    };
-    ($span:expr, $level:expr, $msg:expr,) => {
-        $crate::diagnostic!($span, $level, $msg)
-    };
-    // ($err:expr,) => { $crate::diagnostic!($err) };
-}
-
-/// Abort proc-macro execution right now and display the error.
-///
-/// # Syntax
-///
-/// See [the guide](index.html#guide).
-#[macro_export]
-macro_rules! abort {
-    ($err:expr) => {
-        $crate::diagnostic!($err).abort()
-    };
-
-    ($span:expr, $($tts:tt)*) => {
-        $crate::diagnostic!($span, $crate::Level::Error, $($tts)*).abort()
-    };
-}
-
-/// Shortcut for `abort!(Span::call_site(), msg...)`. This macro
-/// is still preferable over plain panic, panics are not for error reporting.
-///
-/// # Syntax
-///
-/// See [the guide](index.html#guide).
-///
-#[macro_export]
-macro_rules! abort_call_site {
-    ($($tts:tt)*) => {
-        $crate::abort!($crate::__export::proc_macro2::Span::call_site(), $($tts)*)
-    };
-}
-
-/// Emit an error while not aborting the proc-macro right away.
-///
-/// # Syntax
-///
-/// See [the guide](index.html#guide).
-///
-#[macro_export]
-macro_rules! emit_error {
-    ($err:expr) => {
-        $crate::diagnostic!($err).emit()
-    };
-
-    ($span:expr, $($tts:tt)*) => {{
-        let level = $crate::Level::Error;
-        $crate::diagnostic!($span, level, $($tts)*).emit()
-    }};
-}
-
-/// Shortcut for `emit_error!(Span::call_site(), ...)`. This macro
-/// is still preferable over plain panic, panics are not for error reporting..
-///
-/// # Syntax
-///
-/// See [the guide](index.html#guide).
-///
-#[macro_export]
-macro_rules! emit_call_site_error {
-    ($($tts:tt)*) => {
-        $crate::emit_error!($crate::__export::proc_macro2::Span::call_site(), $($tts)*)
-    };
-}
-
-/// Emit a warning. Warnings are not errors and compilation won't fail because of them.
-///
-/// **Does nothing on stable**
-///
-/// # Syntax
-///
-/// See [the guide](index.html#guide).
-///
-#[macro_export]
-macro_rules! emit_warning {
-    ($span:expr, $($tts:tt)*) => {
-        $crate::diagnostic!($span, $crate::Level::Warning, $($tts)*).emit()
-    };
-}
-
-/// Shortcut for `emit_warning!(Span::call_site(), ...)`.
-///
-/// **Does nothing on stable**
-///
-/// # Syntax
-///
-/// See [the guide](index.html#guide).
-///
-#[macro_export]
-macro_rules! emit_call_site_warning {
-    ($($tts:tt)*) => {{
-        $crate::emit_warning!($crate::__export::proc_macro2::Span::call_site(), $($tts)*)
-    }};
-}
-
-#[doc(hidden)]
-#[macro_export]
-macro_rules! __pme__suggestions {
-    ($var:ident) => ();
-
-    ($var:ident $help:ident =? $msg:expr) => {
-        let $var = if let Some(msg) = $msg {
-            $var.suggestion(stringify!($help), msg.to_string())
-        } else {
-            $var
-        };
-    };
-    ($var:ident $help:ident =? $span:expr => $msg:expr) => {
-        let $var = if let Some(msg) = $msg {
-            $var.span_suggestion($span.into(), stringify!($help), msg.to_string())
-        } else {
-            $var
-        };
-    };
-
-    ($var:ident $help:ident =? $msg:expr ; $($rest:tt)*) => {
-        $crate::__pme__suggestions!($var $help =? $msg);
-        $crate::__pme__suggestions!($var $($rest)*);
-    };
-    ($var:ident $help:ident =? $span:expr => $msg:expr ; $($rest:tt)*) => {
-        $crate::__pme__suggestions!($var $help =? $span => $msg);
-        $crate::__pme__suggestions!($var $($rest)*);
-    };
-
-
-    ($var:ident $help:ident = $msg:expr) => {
-        let $var = $var.suggestion(stringify!($help), $msg.to_string());
-    };
-    ($var:ident $help:ident = $fmt:expr, $($args:expr),+) => {
-        let $var = $var.suggestion(
-            stringify!($help),
-            format!($fmt, $($args),*)
-        );
-    };
-    ($var:ident $help:ident = $span:expr => $msg:expr) => {
-        let $var = $var.span_suggestion($span.into(), stringify!($help), $msg.to_string());
-    };
-    ($var:ident $help:ident = $span:expr => $fmt:expr, $($args:expr),+) => {
-        let $var = $var.span_suggestion(
-            $span.into(),
-            stringify!($help),
-            format!($fmt, $($args),*)
-        );
-    };
-
-    ($var:ident $help:ident = $msg:expr ; $($rest:tt)*) => {
-        $crate::__pme__suggestions!($var $help = $msg);
-        $crate::__pme__suggestions!($var $($rest)*);
-    };
-    ($var:ident $help:ident = $fmt:expr, $($args:expr),+ ; $($rest:tt)*) => {
-        $crate::__pme__suggestions!($var $help = $fmt, $($args),*);
-        $crate::__pme__suggestions!($var $($rest)*);
-    };
-    ($var:ident $help:ident = $span:expr => $msg:expr ; $($rest:tt)*) => {
-        $crate::__pme__suggestions!($var $help = $span => $msg);
-        $crate::__pme__suggestions!($var $($rest)*);
-    };
-    ($var:ident $help:ident = $span:expr => $fmt:expr, $($args:expr),+ ; $($rest:tt)*) => {
-        $crate::__pme__suggestions!($var $help = $span => $fmt, $($args),*);
-        $crate::__pme__suggestions!($var $($rest)*);
-    };
-
-    // trailing commas
-
-    ($var:ident $help:ident = $msg:expr,) => {
-        $crate::__pme__suggestions!($var $help = $msg)
-    };
-    ($var:ident $help:ident = $fmt:expr, $($args:expr),+,) => {
-        $crate::__pme__suggestions!($var $help = $fmt, $($args)*)
-    };
-    ($var:ident $help:ident = $span:expr => $msg:expr,) => {
-        $crate::__pme__suggestions!($var $help = $span => $msg)
-    };
-    ($var:ident $help:ident = $span:expr => $fmt:expr, $($args:expr),*,) => {
-        $crate::__pme__suggestions!($var $help = $span => $fmt, $($args)*)
-    };
-    ($var:ident $help:ident = $msg:expr, ; $($rest:tt)*) => {
-        $crate::__pme__suggestions!($var $help = $msg; $($rest)*)
-    };
-    ($var:ident $help:ident = $fmt:expr, $($args:expr),+, ; $($rest:tt)*) => {
-        $crate::__pme__suggestions!($var $help = $fmt, $($args),*; $($rest)*)
-    };
-    ($var:ident $help:ident = $span:expr => $msg:expr, ; $($rest:tt)*) => {
-        $crate::__pme__suggestions!($var $help = $span => $msg; $($rest)*)
-    };
-    ($var:ident $help:ident = $span:expr => $fmt:expr, $($args:expr),+, ; $($rest:tt)*) => {
-        $crate::__pme__suggestions!($var $help = $span => $fmt, $($args),*; $($rest)*)
-    };
-}
diff --git a/vendor/proc-macro-error/src/sealed.rs b/vendor/proc-macro-error/src/sealed.rs
deleted file mode 100644
index a2d5081e5..000000000
--- a/vendor/proc-macro-error/src/sealed.rs
+++ /dev/null
@@ -1,3 +0,0 @@
-pub trait Sealed {}
-
-impl Sealed for crate::Diagnostic {}
diff --git a/vendor/proc-macro-error/tests/macro-errors.rs b/vendor/proc-macro-error/tests/macro-errors.rs
deleted file mode 100644
index dd60f88a8..000000000
--- a/vendor/proc-macro-error/tests/macro-errors.rs
+++ /dev/null
@@ -1,8 +0,0 @@
-extern crate trybuild;
-
-#[cfg_attr(skip_ui_tests, ignore)]
-#[test]
-fn ui() {
-    let t = trybuild::TestCases::new();
-    t.compile_fail("tests/ui/*.rs");
-}
diff --git a/vendor/proc-macro-error/tests/ok.rs b/vendor/proc-macro-error/tests/ok.rs
deleted file mode 100644
index cf64c027f..000000000
--- a/vendor/proc-macro-error/tests/ok.rs
+++ /dev/null
@@ -1,10 +0,0 @@
-extern crate test_crate;
-
-use test_crate::*;
-
-ok!(it_works);
-
-#[test]
-fn check_it_works() {
-    it_works();
-}
diff --git a/vendor/proc-macro-error/tests/runtime-errors.rs b/vendor/proc-macro-error/tests/runtime-errors.rs
deleted file mode 100644
index 13108a2d9..000000000
--- a/vendor/proc-macro-error/tests/runtime-errors.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-use proc_macro_error::*;
-
-#[test]
-#[should_panic = "proc-macro-error API cannot be used outside of"]
-fn missing_attr_emit() {
-    emit_call_site_error!("You won't see me");
-}
-
-#[test]
-#[should_panic = "proc-macro-error API cannot be used outside of"]
-fn missing_attr_abort() {
-    abort_call_site!("You won't see me");
-}
diff --git a/vendor/proc-macro-error/tests/ui/abort.rs b/vendor/proc-macro-error/tests/ui/abort.rs
deleted file mode 100644
index f63118251..000000000
--- a/vendor/proc-macro-error/tests/ui/abort.rs
+++ /dev/null
@@ -1,11 +0,0 @@
-extern crate test_crate;
-use test_crate::*;
-
-abort_from!(one, two);
-abort_to_string!(one, two);
-abort_format!(one, two);
-direct_abort!(one, two);
-abort_notes!(one, two);
-abort_call_site_test!(one, two);
-
-fn main() {}
diff --git a/vendor/proc-macro-error/tests/ui/abort.stderr b/vendor/proc-macro-error/tests/ui/abort.stderr
deleted file mode 100644
index c5399d9d9..000000000
--- a/vendor/proc-macro-error/tests/ui/abort.stderr
+++ /dev/null
@@ -1,48 +0,0 @@
-error: abort!(span, from) test
- --> $DIR/abort.rs:4:13
-  |
-4 | abort_from!(one, two);
-  |             ^^^
-
-error: abort!(span, single_expr) test
- --> $DIR/abort.rs:5:18
-  |
-5 | abort_to_string!(one, two);
-  |                  ^^^
-
-error: abort!(span, expr1, expr2) test
- --> $DIR/abort.rs:6:15
-  |
-6 | abort_format!(one, two);
-  |               ^^^
-
-error: Diagnostic::abort() test
- --> $DIR/abort.rs:7:15
-  |
-7 | direct_abort!(one, two);
-  |               ^^^
-
-error: This is an error
-
-  = note: simple note
-  = help: simple help
-  = help: simple hint
-  = note: simple yay
-  = note: format note
-  = note: Some note
-  = note: spanned simple note
-  = note: spanned format note
-  = note: Some note
-
- --> $DIR/abort.rs:8:14
-  |
-8 | abort_notes!(one, two);
-  |              ^^^
-
-error: abort_call_site! test
- --> $DIR/abort.rs:9:1
-  |
-9 | abort_call_site_test!(one, two);
-  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-  |
-  = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
diff --git a/vendor/proc-macro-error/tests/ui/append_dummy.rs b/vendor/proc-macro-error/tests/ui/append_dummy.rs
deleted file mode 100644
index 53d6feacc..000000000
--- a/vendor/proc-macro-error/tests/ui/append_dummy.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-extern crate test_crate;
-use test_crate::*;
-
-enum NeedDefault {
-    A,
-    B
-}
-
-append_dummy!(need_default);
-
-fn main() {
-    let _ = NeedDefault::default();
-}
diff --git a/vendor/proc-macro-error/tests/ui/append_dummy.stderr b/vendor/proc-macro-error/tests/ui/append_dummy.stderr
deleted file mode 100644
index 8a47ddaac..000000000
--- a/vendor/proc-macro-error/tests/ui/append_dummy.stderr
+++ /dev/null
@@ -1,5 +0,0 @@
-error: append_dummy test
- --> $DIR/append_dummy.rs:9:15
-  |
-9 | append_dummy!(need_default);
-  |               ^^^^^^^^^^^^
diff --git a/vendor/proc-macro-error/tests/ui/children_messages.rs b/vendor/proc-macro-error/tests/ui/children_messages.rs
deleted file mode 100644
index fb9e6dc69..000000000
--- a/vendor/proc-macro-error/tests/ui/children_messages.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-extern crate test_crate;
-use test_crate::*;
-
-children_messages!(one, two, three, four);
-
-fn main() {}
diff --git a/vendor/proc-macro-error/tests/ui/children_messages.stderr b/vendor/proc-macro-error/tests/ui/children_messages.stderr
deleted file mode 100644
index 3b49d8316..000000000
--- a/vendor/proc-macro-error/tests/ui/children_messages.stderr
+++ /dev/null
@@ -1,23 +0,0 @@
-error: main macro message
- --> $DIR/children_messages.rs:4:20
-  |
-4 | children_messages!(one, two, three, four);
-  |                    ^^^
-
-error: child message
- --> $DIR/children_messages.rs:4:25
-  |
-4 | children_messages!(one, two, three, four);
-  |                         ^^^
-
-error: main syn::Error
- --> $DIR/children_messages.rs:4:30
-  |
-4 | children_messages!(one, two, three, four);
-  |                              ^^^^^
-
-error: child syn::Error
- --> $DIR/children_messages.rs:4:37
-  |
-4 | children_messages!(one, two, three, four);
-  |                                     ^^^^
diff --git a/vendor/proc-macro-error/tests/ui/dummy.rs b/vendor/proc-macro-error/tests/ui/dummy.rs
deleted file mode 100644
index caa482788..000000000
--- a/vendor/proc-macro-error/tests/ui/dummy.rs
+++ /dev/null
@@ -1,13 +0,0 @@
-extern crate test_crate;
-use test_crate::*;
-
-enum NeedDefault {
-    A,
-    B
-}
-
-dummy!(need_default);
-
-fn main() {
-    let _ = NeedDefault::default();
-}
diff --git a/vendor/proc-macro-error/tests/ui/dummy.stderr b/vendor/proc-macro-error/tests/ui/dummy.stderr
deleted file mode 100644
index bae078afa..000000000
--- a/vendor/proc-macro-error/tests/ui/dummy.stderr
+++ /dev/null
@@ -1,5 +0,0 @@
-error: set_dummy test
- --> $DIR/dummy.rs:9:8
-  |
-9 | dummy!(need_default);
-  |        ^^^^^^^^^^^^
diff --git a/vendor/proc-macro-error/tests/ui/emit.rs b/vendor/proc-macro-error/tests/ui/emit.rs
deleted file mode 100644
index c5c7db095..000000000
--- a/vendor/proc-macro-error/tests/ui/emit.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-extern crate test_crate;
-use test_crate::*;
-
-emit!(one, two, three, four, five);
-emit_notes!(one, two);
-
-fn main() {}
diff --git a/vendor/proc-macro-error/tests/ui/emit.stderr b/vendor/proc-macro-error/tests/ui/emit.stderr
deleted file mode 100644
index 9484bd628..000000000
--- a/vendor/proc-macro-error/tests/ui/emit.stderr
+++ /dev/null
@@ -1,48 +0,0 @@
-error: emit!(span, from) test
- --> $DIR/emit.rs:4:7
-  |
-4 | emit!(one, two, three, four, five);
-  |       ^^^
-
-error: emit!(span, expr1, expr2) test
- --> $DIR/emit.rs:4:12
-  |
-4 | emit!(one, two, three, four, five);
-  |            ^^^
-
-error: emit!(span, single_expr) test
- --> $DIR/emit.rs:4:17
-  |
-4 | emit!(one, two, three, four, five);
-  |                 ^^^^^
-
-error: Diagnostic::emit() test
- --> $DIR/emit.rs:4:24
-  |
-4 | emit!(one, two, three, four, five);
-  |                        ^^^^
-
-error: emit_call_site_error!(expr) test
- --> $DIR/emit.rs:4:1
-  |
-4 | emit!(one, two, three, four, five);
-  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-  |
-  = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: This is an error
-
-  = note: simple note
-  = help: simple help
-  = help: simple hint
-  = note: simple yay
-  = note: format note
-  = note: Some note
-  = note: spanned simple note
-  = note: spanned format note
-  = note: Some note
-
- --> $DIR/emit.rs:5:13
-  |
-5 | emit_notes!(one, two);
-  |             ^^^
diff --git a/vendor/proc-macro-error/tests/ui/explicit_span_range.rs b/vendor/proc-macro-error/tests/ui/explicit_span_range.rs
deleted file mode 100644
index 82bbebcc5..000000000
--- a/vendor/proc-macro-error/tests/ui/explicit_span_range.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-extern crate test_crate;
-use test_crate::*;
-
-explicit_span_range!(one, two, three, four);
-
-fn main() {}
diff --git a/vendor/proc-macro-error/tests/ui/explicit_span_range.stderr b/vendor/proc-macro-error/tests/ui/explicit_span_range.stderr
deleted file mode 100644
index 781a71e76..000000000
--- a/vendor/proc-macro-error/tests/ui/explicit_span_range.stderr
+++ /dev/null
@@ -1,5 +0,0 @@
-error: explicit SpanRange
- --> $DIR/explicit_span_range.rs:4:22
-  |
-4 | explicit_span_range!(one, two, three, four);
-  |                      ^^^^^^^^^^^^^^^
diff --git a/vendor/proc-macro-error/tests/ui/misuse.rs b/vendor/proc-macro-error/tests/ui/misuse.rs
deleted file mode 100644
index e6d2d2497..000000000
--- a/vendor/proc-macro-error/tests/ui/misuse.rs
+++ /dev/null
@@ -1,11 +0,0 @@
-extern crate proc_macro_error;
-use proc_macro_error::abort;
-
-struct Foo;
-
-#[allow(unused)]
-fn foo() {
-    abort!(Foo, "BOOM");
-}
-
-fn main() {}
diff --git a/vendor/proc-macro-error/tests/ui/misuse.stderr b/vendor/proc-macro-error/tests/ui/misuse.stderr
deleted file mode 100644
index 8eaf6456f..000000000
--- a/vendor/proc-macro-error/tests/ui/misuse.stderr
+++ /dev/null
@@ -1,13 +0,0 @@
-error[E0599]: no method named `FIRST_ARG_MUST_EITHER_BE_Span_OR_IMPLEMENT_ToTokens_OR_BE_SpanRange` found for reference `&Foo` in the current scope
- --> $DIR/misuse.rs:8:5
-  |
-4 | struct Foo;
-  | ----------- doesn't satisfy `Foo: quote::to_tokens::ToTokens`
-...
-8 |     abort!(Foo, "BOOM");
-  |     ^^^^^^^^^^^^^^^^^^^^ method not found in `&Foo`
-  |
-  = note: the method `FIRST_ARG_MUST_EITHER_BE_Span_OR_IMPLEMENT_ToTokens_OR_BE_SpanRange` exists but the following trait bounds were not satisfied:
-          `Foo: quote::to_tokens::ToTokens`
-          which is required by `&Foo: proc_macro_error::__export::ToTokensAsSpanRange`
-  = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
diff --git a/vendor/proc-macro-error/tests/ui/multiple_tokens.rs b/vendor/proc-macro-error/tests/ui/multiple_tokens.rs
deleted file mode 100644
index 215928f6f..000000000
--- a/vendor/proc-macro-error/tests/ui/multiple_tokens.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-extern crate test_crate;
-
-#[test_crate::multiple_tokens]
-type T = ();
-
-fn main() {}
-\ No newline at end of file
diff --git a/vendor/proc-macro-error/tests/ui/multiple_tokens.stderr b/vendor/proc-macro-error/tests/ui/multiple_tokens.stderr
deleted file mode 100644
index c6172c6cc..000000000
--- a/vendor/proc-macro-error/tests/ui/multiple_tokens.stderr
+++ /dev/null
@@ -1,5 +0,0 @@
-error: ...
- --> $DIR/multiple_tokens.rs:4:1
-  |
-4 | type T = ();
-  | ^^^^^^^^^^^^
diff --git a/vendor/proc-macro-error/tests/ui/not_proc_macro.rs b/vendor/proc-macro-error/tests/ui/not_proc_macro.rs
deleted file mode 100644
index e241c5cd2..000000000
--- a/vendor/proc-macro-error/tests/ui/not_proc_macro.rs
+++ /dev/null
@@ -1,4 +0,0 @@
-use proc_macro_error::proc_macro_error;
-
-#[proc_macro_error]
-fn main() {}
diff --git a/vendor/proc-macro-error/tests/ui/not_proc_macro.stderr b/vendor/proc-macro-error/tests/ui/not_proc_macro.stderr
deleted file mode 100644
index f19f01bd8..000000000
--- a/vendor/proc-macro-error/tests/ui/not_proc_macro.stderr
+++ /dev/null
@@ -1,10 +0,0 @@
-error: #[proc_macro_error] attribute can be used only with procedural macros
-
-  = hint: if you are really sure that #[proc_macro_error] should be applied to this exact function, use #[proc_macro_error(allow_not_macro)]
-
- --> $DIR/not_proc_macro.rs:3:1
-  |
-3 | #[proc_macro_error]
-  | ^^^^^^^^^^^^^^^^^^^
-  |
-  = note: this error originates in an attribute macro (in Nightly builds, run with -Z macro-backtrace for more info)
diff --git a/vendor/proc-macro-error/tests/ui/option_ext.rs b/vendor/proc-macro-error/tests/ui/option_ext.rs
deleted file mode 100644
index dfbfc0383..000000000
--- a/vendor/proc-macro-error/tests/ui/option_ext.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-extern crate test_crate;
-use test_crate::*;
-
-option_ext!(one, two);
-
-fn main() {}
diff --git a/vendor/proc-macro-error/tests/ui/option_ext.stderr b/vendor/proc-macro-error/tests/ui/option_ext.stderr
deleted file mode 100644
index 91b151ec2..000000000
--- a/vendor/proc-macro-error/tests/ui/option_ext.stderr
+++ /dev/null
@@ -1,7 +0,0 @@
-error: Option::expect_or_abort() test
- --> $DIR/option_ext.rs:4:1
-  |
-4 | option_ext!(one, two);
-  | ^^^^^^^^^^^^^^^^^^^^^^
-  |
-  = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
diff --git a/vendor/proc-macro-error/tests/ui/proc_macro_hack.rs b/vendor/proc-macro-error/tests/ui/proc_macro_hack.rs
deleted file mode 100644
index 2504bdd40..000000000
--- a/vendor/proc-macro-error/tests/ui/proc_macro_hack.rs
+++ /dev/null
@@ -1,10 +0,0 @@
-// Adapted from https://github.com/dtolnay/proc-macro-hack/blob/master/example/src/main.rs
-// Licensed under either of Apache License, Version 2.0 or MIT license at your option.
-
-use proc_macro_hack_test::add_one;
-
-fn main() {
-    let two = 2;
-    let nine = add_one!(two) + add_one!(2 + 3);
-    println!("nine = {}", nine);
-}
diff --git a/vendor/proc-macro-error/tests/ui/proc_macro_hack.stderr b/vendor/proc-macro-error/tests/ui/proc_macro_hack.stderr
deleted file mode 100644
index 0e984f918..000000000
--- a/vendor/proc-macro-error/tests/ui/proc_macro_hack.stderr
+++ /dev/null
@@ -1,26 +0,0 @@
-error: BOOM
- --> $DIR/proc_macro_hack.rs:8:25
-  |
-8 |     let nine = add_one!(two) + add_one!(2 + 3);
-  |                         ^^^
-  |
-  = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
-
-error: BOOM
- --> $DIR/proc_macro_hack.rs:8:41
-  |
-8 |     let nine = add_one!(two) + add_one!(2 + 3);
-  |                                         ^^^^^
-  |
-  = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
-
-warning: unreachable expression
- --> $DIR/proc_macro_hack.rs:8:32
-  |
-8 |     let nine = add_one!(two) + add_one!(2 + 3);
-  |                -------------   ^^^^^^^^^^^^^^^ unreachable expression
-  |                |
-  |                any code following this expression is unreachable
-  |
-  = note: `#[warn(unreachable_code)]` on by default
-  = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
diff --git a/vendor/proc-macro-error/tests/ui/result_ext.rs b/vendor/proc-macro-error/tests/ui/result_ext.rs
deleted file mode 100644
index bdd560dba..000000000
--- a/vendor/proc-macro-error/tests/ui/result_ext.rs
+++ /dev/null
@@ -1,7 +0,0 @@
-extern crate test_crate;
-use test_crate::*;
-
-result_unwrap_or_abort!(one, two);
-result_expect_or_abort!(one, two);
-
-fn main() {}
diff --git a/vendor/proc-macro-error/tests/ui/result_ext.stderr b/vendor/proc-macro-error/tests/ui/result_ext.stderr
deleted file mode 100644
index f2dc0e423..000000000
--- a/vendor/proc-macro-error/tests/ui/result_ext.stderr
+++ /dev/null
@@ -1,11 +0,0 @@
-error: Result::unwrap_or_abort() test
- --> $DIR/result_ext.rs:4:25
-  |
-4 | result_unwrap_or_abort!(one, two);
-  |                         ^^^
-
-error: BOOM: Result::expect_or_abort() test
- --> $DIR/result_ext.rs:5:25
-  |
-5 | result_expect_or_abort!(one, two);
-  |                         ^^^
diff --git a/vendor/proc-macro-error/tests/ui/to_tokens_span.rs b/vendor/proc-macro-error/tests/ui/to_tokens_span.rs
deleted file mode 100644
index a7c3fc976..000000000
--- a/vendor/proc-macro-error/tests/ui/to_tokens_span.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-extern crate test_crate;
-use test_crate::*;
-
-to_tokens_span!(std::option::Option);
-
-fn main() {}
diff --git a/vendor/proc-macro-error/tests/ui/to_tokens_span.stderr b/vendor/proc-macro-error/tests/ui/to_tokens_span.stderr
deleted file mode 100644
index b8c496826..000000000
--- a/vendor/proc-macro-error/tests/ui/to_tokens_span.stderr
+++ /dev/null
@@ -1,11 +0,0 @@
-error: whole type
- --> $DIR/to_tokens_span.rs:4:17
-  |
-4 | to_tokens_span!(std::option::Option);
-  |                 ^^^^^^^^^^^^^^^^^^^
-
-error: explicit .span()
- --> $DIR/to_tokens_span.rs:4:17
-  |
-4 | to_tokens_span!(std::option::Option);
-  |                 ^^^
diff --git a/vendor/proc-macro-error/tests/ui/unknown_setting.rs b/vendor/proc-macro-error/tests/ui/unknown_setting.rs
deleted file mode 100644
index d8e58eaf8..000000000
--- a/vendor/proc-macro-error/tests/ui/unknown_setting.rs
+++ /dev/null
@@ -1,4 +0,0 @@
-use proc_macro_error::proc_macro_error;
-
-#[proc_macro_error(allow_not_macro, assert_unwind_safe, trololo)]
-fn main() {}
diff --git a/vendor/proc-macro-error/tests/ui/unknown_setting.stderr b/vendor/proc-macro-error/tests/ui/unknown_setting.stderr
deleted file mode 100644
index a55de0b31..000000000
--- a/vendor/proc-macro-error/tests/ui/unknown_setting.stderr
+++ /dev/null
@@ -1,5 +0,0 @@
-error: unknown setting `trololo`, expected one of `assert_unwind_safe`, `allow_not_macro`, `proc_macro_hack`
- --> $DIR/unknown_setting.rs:3:57
-  |
-3 | #[proc_macro_error(allow_not_macro, assert_unwind_safe, trololo)]
-  |                                                         ^^^^^^^
diff --git a/vendor/proc-macro-error/tests/ui/unrelated_panic.rs b/vendor/proc-macro-error/tests/ui/unrelated_panic.rs
deleted file mode 100644
index c74e3e062..000000000
--- a/vendor/proc-macro-error/tests/ui/unrelated_panic.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-extern crate test_crate;
-use test_crate::*;
-
-unrelated_panic!();
-
-fn main() {}
diff --git a/vendor/proc-macro-error/tests/ui/unrelated_panic.stderr b/vendor/proc-macro-error/tests/ui/unrelated_panic.stderr
deleted file mode 100644
index d46d689f2..000000000
--- a/vendor/proc-macro-error/tests/ui/unrelated_panic.stderr
+++ /dev/null
@@ -1,7 +0,0 @@
-error: proc macro panicked
- --> $DIR/unrelated_panic.rs:4:1
-  |
-4 | unrelated_panic!();
-  | ^^^^^^^^^^^^^^^^^^^
-  |
-  = help: message: unrelated panic test
author	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-05-30 03:57:19 +0000
committer	Daniel Baumann <daniel.baumann@progress-linux.org>	2024-05-30 03:57:19 +0000
commit	a0b8f38ab54ac451646aa00cd5e91b6c76f22a84 (patch)
tree	fc451898ccaf445814e26b46664d78702178101d /vendor/proc-macro-error
parent	Adding debian version 1.71.1+dfsg1-2. (diff)
download	rustc-a0b8f38ab54ac451646aa00cd5e91b6c76f22a84.tar.xz rustc-a0b8f38ab54ac451646aa00cd5e91b6c76f22a84.zip