Merging upstream version 1.74.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

55 files changed, 2288 insertions, 0 deletions

diff --git a/vendor/derive_builder/tests/bounds_generation.rs b/vendor/derive_builder/tests/bounds_generation.rs
new file mode 100644
index 000000000..b16716ec5
--- /dev/null
+++ b/vendor/derive_builder/tests/bounds_generation.rs
@@ -0,0 +1,78 @@
+#[macro_use]
+extern crate derive_builder;
+
+/// A struct that deliberately doesn't implement `Clone`.
+#[derive(Debug, Default, PartialEq, Eq)]
+pub struct Dolor(String);
+
+/// Notice that this type derives Builder without disallowing
+/// `Lorem<Dolor>`.
+#[derive(Debug, Clone, Builder, PartialEq, Eq, Default)]
+#[builder(field(private), setter(into))]
+pub struct Lorem<T> {
+    ipsum: T,
+}
+
+#[derive(Debug, Clone, Builder, PartialEq, Eq, Default)]
+#[builder(field(private))]
+pub struct VecLorem<T> {
+    ipsum: Vec<T>,
+}
+
+#[derive(Debug, Clone, Builder, PartialEq, Eq)]
+#[builder(pattern = "owned", field(private))]
+pub struct OwnedLorem<T> {
+    ipsum: T,
+}
+
+#[test]
+fn generic_field_with_clone_has_builder_impl() {
+    assert_eq!(
+        LoremBuilder::default().ipsum(10).build().unwrap(),
+        Lorem { ipsum: 10 }
+    );
+}
+
+/// The `LoremBuilder` type does not require that `T: Clone`, so we should
+/// be able to name a `LoremBuilder<Dolor>`. But all the methods are on an impl
+/// bound with `T: Clone`, so we can't do anything with it.
+#[test]
+fn builder_with_non_clone_generic_compiles() {
+    let _: LoremBuilder<Dolor>;
+}
+
+/// In this case, we're trying to emit something that converts into a thing that
+/// implements clone.
+#[test]
+fn builder_with_into_generic_compiles() {
+    assert_eq!(
+        LoremBuilder::<String>::default().ipsum("").build().unwrap(),
+        Lorem::default()
+    );
+}
+
+#[test]
+fn builder_with_vec_t_compiles() {
+    assert_eq!(
+        VecLoremBuilder::<String>::default()
+            .ipsum(vec!["Hello".to_string()])
+            .build()
+            .unwrap(),
+        VecLorem {
+            ipsum: vec!["Hello".to_string()],
+        }
+    );
+}
+
+#[test]
+fn generic_field_without_clone_has_owned_builder() {
+    assert_eq!(
+        OwnedLoremBuilder::default()
+            .ipsum(Dolor::default())
+            .build()
+            .unwrap(),
+        OwnedLorem {
+            ipsum: Dolor::default()
+        }
+    );
+}
diff --git a/vendor/derive_builder/tests/build_fn.rs b/vendor/derive_builder/tests/build_fn.rs
new file mode 100644
index 000000000..2e0a83916
--- /dev/null
+++ b/vendor/derive_builder/tests/build_fn.rs
@@ -0,0 +1,66 @@
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, Builder, PartialEq)]
+#[builder(build_fn(skip))]
+pub struct Lorem {
+    percentile: u8,
+}
+
+#[derive(Debug, Builder, PartialEq)]
+#[builder(build_fn(name = "finish"))]
+pub struct Ipsum {
+    percentile: u8,
+}
+
+impl Lorem {
+    pub fn new(pct: u8) -> Result<Self, String> {
+        if pct <= 100 {
+            Ok(Lorem { percentile: pct })
+        } else {
+            Err(format!("Percentile must be between 0 and 100; was {}", pct))
+        }
+    }
+}
+
+impl LoremBuilder {
+    pub fn build(&self) -> Result<Lorem, String> {
+        if let Some(ref pct) = self.percentile {
+            Lorem::new(*pct)
+        } else {
+            Err("Percentile was not initialized".to_string())
+        }
+    }
+}
+
+impl IpsumBuilder {
+    /// This should be fine, because we renamed the generated build_fn.
+    #[allow(dead_code)]
+    fn build(&self) -> Result<Self, String> {
+        unimplemented!()
+    }
+}
+
+#[test]
+fn happy_path() {
+    let lorem = LoremBuilder::default().percentile(80).build().unwrap();
+    assert_eq!(lorem, Lorem { percentile: 80 });
+}
+
+#[test]
+fn uninitialized() {
+    let lorem_err = LoremBuilder::default().build().unwrap_err();
+    assert_eq!("Percentile was not initialized", &lorem_err);
+}
+
+#[test]
+fn out_of_range() {
+    let lorem_err = LoremBuilder::default().percentile(120).build().unwrap_err();
+    assert_eq!("Percentile must be between 0 and 100; was 120", &lorem_err);
+}
+
+#[test]
+fn rename() {
+    let ipsum = IpsumBuilder::default().percentile(110).finish().unwrap();
+    assert_eq!(Ipsum { percentile: 110 }, ipsum);
+}
diff --git a/vendor/derive_builder/tests/builder_field_custom.rs b/vendor/derive_builder/tests/builder_field_custom.rs
new file mode 100644
index 000000000..35e5e8eca
--- /dev/null
+++ b/vendor/derive_builder/tests/builder_field_custom.rs
@@ -0,0 +1,51 @@
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+use std::num::ParseIntError;
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+pub struct Lorem {
+    #[builder(field(type = "Option<usize>", build = "self.ipsum.unwrap_or(42) + 1"))]
+    ipsum: usize,
+
+    #[builder(setter(into), field(type = "String", build = "self.dolor.parse()?"))]
+    dolor: u32,
+}
+
+impl From<ParseIntError> for LoremBuilderError {
+    fn from(e: ParseIntError) -> LoremBuilderError {
+        LoremBuilderError::ValidationError(e.to_string())
+    }
+}
+
+#[test]
+fn custom_fields() {
+    let x = LoremBuilder::default().dolor("7").build().unwrap();
+
+    assert_eq!(
+        x,
+        Lorem {
+            ipsum: 43,
+            dolor: 7,
+        }
+    );
+
+    let x = LoremBuilder::default()
+        .ipsum(Some(12))
+        .dolor("66")
+        .build()
+        .unwrap();
+
+    assert_eq!(
+        x,
+        Lorem {
+            ipsum: 13,
+            dolor: 66,
+        }
+    );
+
+    let x = LoremBuilder::default().build().unwrap_err().to_string();
+    assert_eq!(x, "cannot parse integer from empty string");
+}
diff --git a/vendor/derive_builder/tests/builder_name.rs b/vendor/derive_builder/tests/builder_name.rs
new file mode 100644
index 000000000..3b2cd5706
--- /dev/null
+++ b/vendor/derive_builder/tests/builder_name.rs
@@ -0,0 +1,40 @@
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+#[builder(name = "MyBuilder")]
+struct Lorem {
+    ipsum: &'static str,
+    pub dolor: Option<&'static str>,
+    pub sit: i32,
+    amet: bool,
+}
+
+#[test]
+fn error_if_uninitialized() {
+    let error = MyBuilder::default().build().unwrap_err();
+    assert_eq!(&error.to_string(), "`ipsum` must be initialized");
+}
+
+#[test]
+fn builder_test() {
+    let x: Lorem = MyBuilder::default()
+        .ipsum("lorem")
+        .dolor(Some("dolor"))
+        .sit(42)
+        .amet(true)
+        .build()
+        .unwrap();
+
+    assert_eq!(
+        x,
+        Lorem {
+            ipsum: "lorem",
+            dolor: Some("dolor"),
+            sit: 42,
+            amet: true,
+        }
+    );
+}
diff --git a/vendor/derive_builder/tests/compile-fail/builder_field_attr.rs b/vendor/derive_builder/tests/compile-fail/builder_field_attr.rs
new file mode 100644
index 000000000..bc1b63dea
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/builder_field_attr.rs
@@ -0,0 +1,12 @@
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+pub struct Lorem {
+    ok: String,
+
+    #[builder_field_attr(no_such_attribute)]
+    broken: String,
+}
+
+fn main() {}
diff --git a/vendor/derive_builder/tests/compile-fail/builder_field_attr.stderr b/vendor/derive_builder/tests/compile-fail/builder_field_attr.stderr
new file mode 100644
index 000000000..83a5f3e8b
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/builder_field_attr.stderr
@@ -0,0 +1,5 @@
+error: cannot find attribute `no_such_attribute` in this scope
+ --> tests/compile-fail/builder_field_attr.rs:8:26
+  |
+8 |     #[builder_field_attr(no_such_attribute)]
+  |                          ^^^^^^^^^^^^^^^^^
diff --git a/vendor/derive_builder/tests/compile-fail/builder_field_custom.rs b/vendor/derive_builder/tests/compile-fail/builder_field_custom.rs
new file mode 100644
index 000000000..74c37efb5
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/builder_field_custom.rs
@@ -0,0 +1,22 @@
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+pub struct Lorem {
+    // `default` is incompatible with `field.build`
+    #[builder(
+        default = "1",
+        field(build = "self.ipsum.map(|v| v + 42).unwrap_or(100)")
+    )]
+    ipsum: usize,
+
+    // `default` is incompatible with `field.type`, even without `field.build`
+    #[builder(default = "2", field(type = "usize"))]
+    sit: usize,
+
+    // Both errors can occur on the same field
+    #[builder(default = "3", field(type = "usize", build = "self.ipsum + 42"))]
+    amet: usize,
+}
+
+fn main() {}
diff --git a/vendor/derive_builder/tests/compile-fail/builder_field_custom.stderr b/vendor/derive_builder/tests/compile-fail/builder_field_custom.stderr
new file mode 100644
index 000000000..6cfc7335f
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/builder_field_custom.stderr
@@ -0,0 +1,23 @@
+error: #[builder(default)] and #[builder(field(build="..."))] cannot be used together
+ --> tests/compile-fail/builder_field_custom.rs:8:19
+  |
+8 |         default = "1",
+  |                   ^^^
+
+error: #[builder(default)] and #[builder(field(type="..."))] cannot be used together
+  --> tests/compile-fail/builder_field_custom.rs:14:25
+   |
+14 |     #[builder(default = "2", field(type = "usize"))]
+   |                         ^^^
+
+error: #[builder(default)] and #[builder(field(build="..."))] cannot be used together
+  --> tests/compile-fail/builder_field_custom.rs:18:25
+   |
+18 |     #[builder(default = "3", field(type = "usize", build = "self.ipsum + 42"))]
+   |                         ^^^
+
+error: #[builder(default)] and #[builder(field(type="..."))] cannot be used together
+  --> tests/compile-fail/builder_field_custom.rs:18:25
+   |
+18 |     #[builder(default = "3", field(type = "usize", build = "self.ipsum + 42"))]
+   |                         ^^^
diff --git a/vendor/derive_builder/tests/compile-fail/builder_setter_attr.rs b/vendor/derive_builder/tests/compile-fail/builder_setter_attr.rs
new file mode 100644
index 000000000..baf690c21
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/builder_setter_attr.rs
@@ -0,0 +1,16 @@
+#![deny(unused_must_use)]
+
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+pub struct Lorem {
+    ok: String,
+
+    #[builder_setter_attr(must_use)]
+    broken: usize,
+}
+
+fn main() {
+    LoremBuilder::default().broken(42);
+}
diff --git a/vendor/derive_builder/tests/compile-fail/builder_setter_attr.stderr b/vendor/derive_builder/tests/compile-fail/builder_setter_attr.stderr
new file mode 100644
index 000000000..4b093d7d5
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/builder_setter_attr.stderr
@@ -0,0 +1,11 @@
+error: unused return value of `LoremBuilder::broken` that must be used
+  --> tests/compile-fail/builder_setter_attr.rs:15:5
+   |
+15 |     LoremBuilder::default().broken(42);
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+note: the lint level is defined here
+  --> tests/compile-fail/builder_setter_attr.rs:1:9
+   |
+1  | #![deny(unused_must_use)]
+   |         ^^^^^^^^^^^^^^^
diff --git a/vendor/derive_builder/tests/compile-fail/crate_root.rs b/vendor/derive_builder/tests/compile-fail/crate_root.rs
new file mode 100644
index 000000000..6f6cd3017
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/crate_root.rs
@@ -0,0 +1,16 @@
+#[macro_use]
+extern crate derive_builder;
+
+// This is a stand-in for any bad crate directive
+mod empty {}
+
+#[derive(Builder)]
+// It would be nice if the "failed to resolve" errors would identify `"empty"` as the error span,
+// but doing so would require rewriting a lot of the code generation to use the crate_root span
+// for the full path of the thing being imported, and that doesn't seem worth the code churn.
+#[builder(crate = "empty")]
+struct BadCrate {
+    lorem: String,
+}
+
+fn main() {}
diff --git a/vendor/derive_builder/tests/compile-fail/crate_root.stderr b/vendor/derive_builder/tests/compile-fail/crate_root.stderr
new file mode 100644
index 000000000..326b80aa9
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/crate_root.stderr
@@ -0,0 +1,97 @@
+error[E0433]: failed to resolve: could not find `export` in `empty`
+ --> tests/compile-fail/crate_root.rs:7:10
+  |
+7 | #[derive(Builder)]
+  |          ^^^^^^^ could not find `export` in `empty`
+  |
+  = note: this error originates in the derive macro `Builder` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error[E0433]: failed to resolve: could not find `export` in `empty`
+ --> tests/compile-fail/crate_root.rs:7:10
+  |
+7 | #[derive(Builder)]
+  |          ^^^^^^^ not found in `empty::export::core::option`
+  |
+  = note: this error originates in the derive macro `Builder` (in Nightly builds, run with -Z macro-backtrace for more info)
+help: consider importing this enum
+  |
+5 | use derive_builder::export::core::option::Option;
+  |
+
+error[E0433]: failed to resolve: could not find `export` in `empty`
+ --> tests/compile-fail/crate_root.rs:7:10
+  |
+7 | #[derive(Builder)]
+  |          ^^^^^^^ not found in `empty::export::core::clone`
+  |
+  = note: this error originates in the derive macro `Builder` (in Nightly builds, run with -Z macro-backtrace for more info)
+help: consider importing this trait
+  |
+5 | use derive_builder::export::core::clone::Clone;
+  |
+
+error[E0433]: failed to resolve: could not find `export` in `empty`
+ --> tests/compile-fail/crate_root.rs:7:10
+  |
+7 | #[derive(Builder)]
+  |          ^^^^^^^ not found in `empty::export::core::result`
+  |
+  = note: this error originates in the derive macro `Builder` (in Nightly builds, run with -Z macro-backtrace for more info)
+help: consider importing one of these items
+  |
+5 | use derive_builder::export::core::fmt::Result;
+  |
+5 | use derive_builder::export::core::io::Result;
+  |
+5 | use derive_builder::export::core::result::Result;
+  |
+5 | use derive_builder::export::core::thread::Result;
+  |
+
+error[E0433]: failed to resolve: could not find `export` in `empty`
+ --> tests/compile-fail/crate_root.rs:7:10
+  |
+7 | #[derive(Builder)]
+  |          ^^^^^^^ not found in `empty::export::core::convert`
+  |
+  = note: this error originates in the derive macro `Builder` (in Nightly builds, run with -Z macro-backtrace for more info)
+help: consider importing this trait
+  |
+5 | use derive_builder::export::core::convert::Into;
+  |
+
+error[E0433]: failed to resolve: could not find `UninitializedFieldError` in `empty`
+ --> tests/compile-fail/crate_root.rs:7:10
+  |
+7 | #[derive(Builder)]
+  |          ^^^^^^^ not found in `empty`
+  |
+  = note: this error originates in the derive macro `Builder` (in Nightly builds, run with -Z macro-backtrace for more info)
+help: consider importing this struct
+  |
+5 | use derive_builder::UninitializedFieldError;
+  |
+
+error[E0433]: failed to resolve: could not find `export` in `empty`
+ --> tests/compile-fail/crate_root.rs:7:10
+  |
+7 | #[derive(Builder)]
+  |          ^^^^^^^ not found in `empty::export::core::default`
+  |
+  = note: this error originates in the derive macro `Builder` (in Nightly builds, run with -Z macro-backtrace for more info)
+help: consider importing this trait
+  |
+5 | use derive_builder::export::core::default::Default;
+  |
+
+error[E0412]: cannot find type `UninitializedFieldError` in module `empty`
+ --> tests/compile-fail/crate_root.rs:7:10
+  |
+7 | #[derive(Builder)]
+  |          ^^^^^^^ not found in `empty`
+  |
+  = note: this error originates in the derive macro `Builder` (in Nightly builds, run with -Z macro-backtrace for more info)
+help: consider importing this struct
+  |
+5 | use derive_builder::UninitializedFieldError;
+  |
diff --git a/vendor/derive_builder/tests/compile-fail/custom_error_generic_missing_bound.rs b/vendor/derive_builder/tests/compile-fail/custom_error_generic_missing_bound.rs
new file mode 100644
index 000000000..b9b78dea2
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/custom_error_generic_missing_bound.rs
@@ -0,0 +1,44 @@
+#[macro_use]
+extern crate derive_builder;
+
+use derive_builder::UninitializedFieldError;
+
+trait Popular {
+    fn is_popular(&self) -> bool;
+}
+
+impl<'a> Popular for &'a str {
+    fn is_popular(&self) -> bool {
+        !self.starts_with('b')
+    }
+}
+
+#[derive(Debug, Builder)]
+#[builder(build_fn(validate = "check_person", error = "Error<N>"))]
+struct Person<N> {
+    name: N,
+    age: u16,
+}
+
+enum Error<N> {
+    UninitializedField(&'static str),
+    UnpopularName(N),
+}
+
+impl<N> From<UninitializedFieldError> for Error<N> {
+    fn from(error: UninitializedFieldError) -> Self {
+        Self::UninitializedField(error.field_name())
+    }
+}
+
+fn check_person<N: Popular + Clone>(builder: &PersonBuilder<N>) -> Result<(), Error<N>> {
+    if let Some(name) = &builder.name {
+        if !name.is_popular() {
+            return Err(Error::UnpopularName(name.clone()));
+        }
+    }
+
+    Ok(())
+}
+
+fn main() {}
diff --git a/vendor/derive_builder/tests/compile-fail/custom_error_generic_missing_bound.stderr b/vendor/derive_builder/tests/compile-fail/custom_error_generic_missing_bound.stderr
new file mode 100644
index 000000000..5fa9129ec
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/custom_error_generic_missing_bound.stderr
@@ -0,0 +1,15 @@
+error[E0277]: the trait bound `N: Popular` is not satisfied
+  --> tests/compile-fail/custom_error_generic_missing_bound.rs:17:31
+   |
+17 | #[builder(build_fn(validate = "check_person", error = "Error<N>"))]
+   |                               ^^^^^^^^^^^^^^ the trait `Popular` is not implemented for `N`
+   |
+note: required by a bound in `check_person`
+  --> tests/compile-fail/custom_error_generic_missing_bound.rs:34:20
+   |
+34 | fn check_person<N: Popular + Clone>(builder: &PersonBuilder<N>) -> Result<(), Error<N>> {
+   |                    ^^^^^^^ required by this bound in `check_person`
+help: consider restricting type parameter `N`
+   |
+18 | struct Person<N: Popular> {
+   |                +++++++++
diff --git a/vendor/derive_builder/tests/compile-fail/custom_error_no_from.rs b/vendor/derive_builder/tests/compile-fail/custom_error_no_from.rs
new file mode 100644
index 000000000..f052a173f
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/custom_error_no_from.rs
@@ -0,0 +1,37 @@
+#[macro_use]
+extern crate derive_builder;
+
+fn validate_age(age: usize) -> Result<(), Error> {
+    if age > 200 {
+        Err(Error::UnrealisticAge(age))
+    } else {
+        Ok(())
+    }
+}
+
+fn check_person(builder: &PersonBuilder) -> Result<(), Error> {
+    if let Some(age) = builder.age {
+        validate_age(age)
+    } else {
+        Ok(())
+    }
+}
+
+#[derive(Builder)]
+#[builder(build_fn(validate = "check_person", error = "Error"))]
+struct Person {
+    name: String,
+    age: usize,
+}
+
+// NOTE: This enum has a variant for the uninitialized field case (called MissingData)
+// but has forgotten `impl From<derive_builder::UninitializedFieldError>`, which is a
+// compile-blocking mistake.
+#[derive(Debug)]
+enum Error {
+    /// A required field is not filled out.
+    MissingData(&'static str),
+    UnrealisticAge(usize),
+}
+
+fn main() {}
diff --git a/vendor/derive_builder/tests/compile-fail/custom_error_no_from.stderr b/vendor/derive_builder/tests/compile-fail/custom_error_no_from.stderr
new file mode 100644
index 000000000..cde3d817b
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/custom_error_no_from.stderr
@@ -0,0 +1,7 @@
+error[E0277]: the trait bound `Error: From<UninitializedFieldError>` is not satisfied
+  --> tests/compile-fail/custom_error_no_from.rs:21:55
+   |
+21 | #[builder(build_fn(validate = "check_person", error = "Error"))]
+   |                                                       ^^^^^^^ the trait `From<UninitializedFieldError>` is not implemented for `Error`
+   |
+   = note: required because of the requirements on the impl of `Into<Error>` for `UninitializedFieldError`
diff --git a/vendor/derive_builder/tests/compile-fail/deny_empty_default.rs b/vendor/derive_builder/tests/compile-fail/deny_empty_default.rs
new file mode 100644
index 000000000..fa5c0d0d6
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/deny_empty_default.rs
@@ -0,0 +1,12 @@
+#[macro_use]
+extern crate derive_builder;
+
+// deny `#[builder(default = "")]`, because we don't want to define a meaning (yet)! :-)
+#[allow(dead_code)]
+#[derive(Builder)]
+struct Lorem {
+    #[builder(default = "")]
+    ipsum: String,
+}
+
+fn main() {}
diff --git a/vendor/derive_builder/tests/compile-fail/deny_empty_default.stderr b/vendor/derive_builder/tests/compile-fail/deny_empty_default.stderr
new file mode 100644
index 000000000..df1319471
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/deny_empty_default.stderr
@@ -0,0 +1,5 @@
+error: Unknown literal value ``
+ --> $DIR/deny_empty_default.rs:8:25
+  |
+8 |     #[builder(default = "")]
+  |                         ^^
diff --git a/vendor/derive_builder/tests/compile-fail/private_build_fn.rs b/vendor/derive_builder/tests/compile-fail/private_build_fn.rs
new file mode 100644
index 000000000..4ee0222d9
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/private_build_fn.rs
@@ -0,0 +1,30 @@
+#[macro_use]
+extern crate derive_builder;
+
+mod container {
+    /// `LoremBuilder` should be accessible outside the module, but its
+    /// build method should not be.
+    #[derive(Debug, Default, Builder)]
+    #[builder(default, public, build_fn(private))]
+    pub struct Lorem {
+        foo: usize,
+        bar: String,
+    }
+
+    impl LoremBuilder {
+        /// Create a `Lorem`
+        pub fn my_build(&self) -> Lorem {
+            self.build().expect("All good")
+        }
+    }
+}
+
+fn main() {
+    use container::{Lorem, LoremBuilder};
+
+    let lorem1 = LoremBuilder::default().my_build();
+
+    let lorem2 = LoremBuilder::default().build().unwrap();
+
+    println!("{:?} vs {:?}", lorem1, lorem2);
+}
diff --git a/vendor/derive_builder/tests/compile-fail/private_build_fn.stderr b/vendor/derive_builder/tests/compile-fail/private_build_fn.stderr
new file mode 100644
index 000000000..e74211557
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/private_build_fn.stderr
@@ -0,0 +1,16 @@
+warning: unused import: `Lorem`
+  --> tests/compile-fail/private_build_fn.rs:23:21
+   |
+23 |     use container::{Lorem, LoremBuilder};
+   |                     ^^^^^
+   |
+   = note: `#[warn(unused_imports)]` on by default
+
+error[E0624]: associated function `build` is private
+  --> tests/compile-fail/private_build_fn.rs:27:42
+   |
+7  |     #[derive(Debug, Default, Builder)]
+   |                              ------- private associated function defined here
+...
+27 |     let lorem2 = LoremBuilder::default().build().unwrap();
+   |                                          ^^^^^ private associated function
diff --git a/vendor/derive_builder/tests/compile-fail/private_builder.rs b/vendor/derive_builder/tests/compile-fail/private_builder.rs
new file mode 100644
index 000000000..cd13e52d5
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/private_builder.rs
@@ -0,0 +1,23 @@
+#[macro_use]
+extern crate derive_builder;
+
+pub mod foo {
+    /// The builder struct's declaration of privacy should override the field's
+    /// attempt to be public later on.
+    #[derive(Debug, PartialEq, Default, Builder, Clone)]
+    #[builder(private, setter(into))]
+    pub struct Lorem {
+        pub private: String,
+        #[builder(public)]
+        pub public: String,
+    }
+}
+
+fn main() {
+    let x = foo::LoremBuilder::default()
+        .public("Hello")
+        .build()
+        .unwrap();
+
+    assert_eq!(x.public, "Hello".to_string());
+}
diff --git a/vendor/derive_builder/tests/compile-fail/private_builder.stderr b/vendor/derive_builder/tests/compile-fail/private_builder.stderr
new file mode 100644
index 000000000..6684ac28c
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/private_builder.stderr
@@ -0,0 +1,21 @@
+error[E0603]: struct `LoremBuilder` is private
+  --> tests/compile-fail/private_builder.rs:17:18
+   |
+17 |     let x = foo::LoremBuilder::default()
+   |                  ^^^^^^^^^^^^ private struct
+   |
+note: the struct `LoremBuilder` is defined here
+  --> tests/compile-fail/private_builder.rs:7:41
+   |
+7  |     #[derive(Debug, PartialEq, Default, Builder, Clone)]
+   |                                         ^^^^^^^
+   = note: this error originates in the derive macro `Builder` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error[E0624]: associated function `build` is private
+  --> tests/compile-fail/private_builder.rs:19:10
+   |
+7  |     #[derive(Debug, PartialEq, Default, Builder, Clone)]
+   |                                         ------- private associated function defined here
+...
+19 |         .build()
+   |          ^^^^^ private associated function
diff --git a/vendor/derive_builder/tests/compile-fail/private_fields.rs b/vendor/derive_builder/tests/compile-fail/private_fields.rs
new file mode 100644
index 000000000..74f074df1
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/private_fields.rs
@@ -0,0 +1,26 @@
+#[macro_use]
+extern crate derive_builder;
+
+/// This builder is in an inner module to make sure private fields aren't accessible
+/// from the `main` function.
+mod inner {
+    /// The `LoremBuilder` struct will have private fields for `ipsum` and `dolor`, and
+    /// a public `sit` field.
+    #[derive(Debug, Builder)]
+    #[builder(field(private), setter(into))]
+    pub struct Lorem {
+        ipsum: String,
+        dolor: u16,
+        #[builder(field(public))]
+        sit: bool,
+    }
+}
+
+fn main() {
+    use inner::LoremBuilder;
+    
+    let mut lorem = LoremBuilder::default();
+    lorem.dolor(15u16);
+    lorem.sit = Some(true); // <-- public
+    lorem.dolor = Some(0); // <-- private
+}
diff --git a/vendor/derive_builder/tests/compile-fail/private_fields.stderr b/vendor/derive_builder/tests/compile-fail/private_fields.stderr
new file mode 100644
index 000000000..403e89c81
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/private_fields.stderr
@@ -0,0 +1,5 @@
+error[E0616]: field `dolor` of struct `LoremBuilder` is private
+  --> tests/compile-fail/private_fields.rs:25:11
+   |
+25 |     lorem.dolor = Some(0); // <-- private
+   |           ^^^^^ private field
diff --git a/vendor/derive_builder/tests/compile-fail/rename_setter_struct_level.rs b/vendor/derive_builder/tests/compile-fail/rename_setter_struct_level.rs
new file mode 100644
index 000000000..7565efe64
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/rename_setter_struct_level.rs
@@ -0,0 +1,25 @@
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+#[builder(setter(name = "foo"))]
+struct Lorem {
+    ipsum: &'static str,
+    pub dolor: &'static str,
+}
+
+fn main() {
+    let x = LoremBuilder::default()
+        .ipsum("ipsum")
+        .foo("dolor")
+        .build()
+        .unwrap();
+
+    assert_eq!(x,
+               Lorem {
+                   ipsum: "ipsum",
+                   dolor: "dolor",
+               });
+}
diff --git a/vendor/derive_builder/tests/compile-fail/rename_setter_struct_level.stderr b/vendor/derive_builder/tests/compile-fail/rename_setter_struct_level.stderr
new file mode 100644
index 000000000..5e2141b1b
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/rename_setter_struct_level.stderr
@@ -0,0 +1,11 @@
+error: Unknown field: `name`
+ --> tests/compile-fail/rename_setter_struct_level.rs:7:18
+  |
+7 | #[builder(setter(name = "foo"))]
+  |                  ^^^^
+
+error[E0433]: failed to resolve: use of undeclared type `LoremBuilder`
+  --> tests/compile-fail/rename_setter_struct_level.rs:14:13
+   |
+14 |     let x = LoremBuilder::default()
+   |             ^^^^^^^^^^^^ use of undeclared type `LoremBuilder`
diff --git a/vendor/derive_builder/tests/compile-fail/vis_conflict.rs b/vendor/derive_builder/tests/compile-fail/vis_conflict.rs
new file mode 100644
index 000000000..68e38a417
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/vis_conflict.rs
@@ -0,0 +1,21 @@
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Builder)]
+#[builder(public, vis = "pub(crate)")]
+pub struct Example {
+    #[builder(public, private)]
+    field: String,
+}
+
+#[derive(Builder)]
+#[builder(public, vis = "pub(crate)", build_fn(private, public))]
+pub struct SecondExample {
+    #[builder(private, vis = "pub")]
+    a_field: String,
+}
+
+fn main() {
+    ExampleBuilder::default().build();
+    SecondExampleBuilder::default().build();
+}
diff --git a/vendor/derive_builder/tests/compile-fail/vis_conflict.stderr b/vendor/derive_builder/tests/compile-fail/vis_conflict.stderr
new file mode 100644
index 000000000..c8c2ed823
--- /dev/null
+++ b/vendor/derive_builder/tests/compile-fail/vis_conflict.stderr
@@ -0,0 +1,41 @@
+error: `public` and `private` cannot be used together
+ --> tests/compile-fail/vis_conflict.rs:7:15
+  |
+7 |     #[builder(public, private)]
+  |               ^^^^^^
+
+error: `vis="..."` cannot be used with `public` or `private`
+ --> tests/compile-fail/vis_conflict.rs:5:25
+  |
+5 | #[builder(public, vis = "pub(crate)")]
+  |                         ^^^^^^^^^^^^
+
+error: `public` and `private` cannot be used together
+  --> tests/compile-fail/vis_conflict.rs:12:57
+   |
+12 | #[builder(public, vis = "pub(crate)", build_fn(private, public))]
+   |                                                         ^^^^^^
+
+error: `vis="..."` cannot be used with `public` or `private`
+  --> tests/compile-fail/vis_conflict.rs:14:30
+   |
+14 |     #[builder(private, vis = "pub")]
+   |                              ^^^^^
+
+error: `vis="..."` cannot be used with `public` or `private`
+  --> tests/compile-fail/vis_conflict.rs:12:25
+   |
+12 | #[builder(public, vis = "pub(crate)", build_fn(private, public))]
+   |                         ^^^^^^^^^^^^
+
+error[E0433]: failed to resolve: use of undeclared type `ExampleBuilder`
+  --> tests/compile-fail/vis_conflict.rs:19:5
+   |
+19 |     ExampleBuilder::default().build();
+   |     ^^^^^^^^^^^^^^ use of undeclared type `ExampleBuilder`
+
+error[E0433]: failed to resolve: use of undeclared type `SecondExampleBuilder`
+  --> tests/compile-fail/vis_conflict.rs:20:5
+   |
+20 |     SecondExampleBuilder::default().build();
+   |     ^^^^^^^^^^^^^^^^^^^^ use of undeclared type `SecondExampleBuilder`
diff --git a/vendor/derive_builder/tests/compiletests.rs b/vendor/derive_builder/tests/compiletests.rs
new file mode 100644
index 000000000..5c43973ca
--- /dev/null
+++ b/vendor/derive_builder/tests/compiletests.rs
@@ -0,0 +1,12 @@
+#![cfg(compiletests)]
+
+extern crate rustversion;
+extern crate trybuild;
+
+#[rustversion::stable(1.59)]
+#[test]
+fn compile_test() {
+    let t = trybuild::TestCases::new();
+    t.pass("tests/run-pass/*.rs");
+    t.compile_fail("tests/compile-fail/*.rs");
+}
diff --git a/vendor/derive_builder/tests/custom_constructor.rs b/vendor/derive_builder/tests/custom_constructor.rs
new file mode 100644
index 000000000..b4daabb0a
--- /dev/null
+++ b/vendor/derive_builder/tests/custom_constructor.rs
@@ -0,0 +1,52 @@
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, PartialEq, Eq, Builder)]
+#[builder(custom_constructor, build_fn(private, name = "fallible_build"))]
+struct Request {
+    url: &'static str,
+    username: &'static str,
+    #[builder(default, setter(into))]
+    password: Option<&'static str>,
+}
+
+impl RequestBuilder {
+    pub fn new(url: &'static str, username: &'static str) -> Self {
+        Self {
+            url: Some(url),
+            username: Some(username),
+            ..Self::create_empty()
+        }
+    }
+
+    pub fn build(&self) -> Request {
+        self.fallible_build()
+            .expect("All required fields set upfront")
+    }
+}
+
+#[test]
+fn new_then_build_succeeds() {
+    assert_eq!(
+        RequestBuilder::new("...", "!!!").build(),
+        Request {
+            url: "...",
+            username: "!!!",
+            password: None
+        }
+    );
+}
+
+#[test]
+fn new_then_set_succeeds() {
+    assert_eq!(
+        RequestBuilder::new("...", "!!!").password("test").build(),
+        Request {
+            url: "...",
+            username: "!!!",
+            password: Some("test")
+        }
+    );
+}
diff --git a/vendor/derive_builder/tests/custom_default.rs b/vendor/derive_builder/tests/custom_default.rs
new file mode 100644
index 000000000..8fd6d215f
--- /dev/null
+++ b/vendor/derive_builder/tests/custom_default.rs
@@ -0,0 +1,138 @@
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+mod field_level {
+    use derive_builder::UninitializedFieldError;
+    #[derive(Debug, PartialEq, Default, Builder, Clone)]
+    struct Lorem {
+        required: String,
+        #[builder(default)]
+        explicit_default: String,
+        #[builder(default = "\"foo\".to_string()")]
+        escaped_default: String,
+        #[builder(default = r#"format!("Hello {}!", "World")"#)]
+        raw_default: String,
+        #[builder(default = r#"format!("{}-{}-{}-{}",
+                             Clone::clone(self.required
+                                .as_ref()
+                                .ok_or_else(|| UninitializedFieldError::new("required"))?),
+                             match self.explicit_default { Some(ref x) => x, None => "EMPTY" },
+                             self.escaped_default.as_ref().map(|x| x.as_ref()).unwrap_or("EMPTY"),
+                             if let Some(ref x) = self.raw_default { x } else { "EMPTY" })"#)]
+        computed_default: String,
+    }
+
+    #[test]
+    fn error_if_uninitialized() {
+        let error = LoremBuilder::default().build().unwrap_err();
+        assert_eq!(&error.to_string(), "`required` must be initialized");
+    }
+
+    #[test]
+    fn custom_default() {
+        let x = LoremBuilder::default()
+            .required("ipsum".to_string())
+            .build()
+            .unwrap();
+
+        assert_eq!(
+            x,
+            Lorem {
+                required: "ipsum".to_string(),
+                explicit_default: "".to_string(),
+                escaped_default: "foo".to_string(),
+                raw_default: "Hello World!".to_string(),
+                computed_default: "ipsum-EMPTY-EMPTY-EMPTY".to_string(),
+            }
+        );
+    }
+
+    #[test]
+    fn builder_test() {
+        let x = LoremBuilder::default()
+            .required("ipsum".to_string())
+            .explicit_default("lorem".to_string())
+            .escaped_default("dolor".to_string())
+            .raw_default("sit".to_string())
+            .build()
+            .unwrap();
+
+        assert_eq!(
+            x,
+            Lorem {
+                required: "ipsum".to_string(),
+                explicit_default: "lorem".to_string(),
+                escaped_default: "dolor".to_string(),
+                raw_default: "sit".to_string(),
+                computed_default: "ipsum-lorem-dolor-sit".to_string(),
+            }
+        );
+    }
+}
+
+mod struct_level {
+    #[derive(Debug, Clone, PartialEq, Eq, Builder)]
+    #[builder(default = "explicit_default()")]
+    struct Lorem {
+        #[builder(default = "true")]
+        overwritten: bool,
+        not_type_default: Option<&'static str>,
+    }
+
+    fn explicit_default() -> Lorem {
+        Lorem {
+            overwritten: false,
+            not_type_default: Some("defined on struct-level"),
+        }
+    }
+
+    #[derive(Debug, Clone, PartialEq, Eq, Builder)]
+    #[builder(default)]
+    struct Ipsum {
+        not_type_default: Option<u16>,
+        also_custom: bool,
+        is_type_default: String,
+    }
+
+    impl Default for Ipsum {
+        fn default() -> Self {
+            Ipsum {
+                not_type_default: Some(20),
+                also_custom: true,
+                is_type_default: Default::default(),
+            }
+        }
+    }
+
+    #[test]
+    fn explicit_defaults_are_equal() {
+        let lorem = LoremBuilder::default().build().unwrap();
+
+        assert_eq!(
+            lorem,
+            Lorem {
+                overwritten: true,
+                ..explicit_default()
+            }
+        );
+    }
+
+    #[test]
+    fn implicit_defaults_are_equal() {
+        let ipsum = IpsumBuilder::default().build().unwrap();
+
+        assert_eq!(ipsum, Ipsum::default());
+    }
+
+    #[test]
+    fn overrides_work() {
+        let ipsum = IpsumBuilder::default()
+            .not_type_default(None)
+            .build()
+            .expect("Struct-level default makes all fields optional");
+
+        assert_eq!(ipsum.not_type_default, None);
+    }
+}
diff --git a/vendor/derive_builder/tests/derive_trait.rs b/vendor/derive_builder/tests/derive_trait.rs
new file mode 100644
index 000000000..0bb986d66
--- /dev/null
+++ b/vendor/derive_builder/tests/derive_trait.rs
@@ -0,0 +1,25 @@
+#![allow(dead_code)]
+
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, Default, Clone)]
+struct NotPartialEq(String);
+
+#[derive(Debug, Clone, Builder)]
+#[builder(derive(Debug, PartialEq, Eq))]
+struct Lorem {
+    foo: u8,
+
+    /// This type doesn't have `PartialEq` support, but that's fine
+    /// since we don't want it in the builder.
+    #[builder(setter(skip))]
+    excluded: NotPartialEq,
+}
+
+#[test]
+fn defaults() {
+    // This macro requires that the two sides implement `PartialEq` AND `Debug`,
+    // so this one line is testing that the requested traits were really generated.
+    assert_eq!(LoremBuilder::default(), LoremBuilder::default());
+}
diff --git a/vendor/derive_builder/tests/forward_allow_attr.rs b/vendor/derive_builder/tests/forward_allow_attr.rs
new file mode 100644
index 000000000..768269451
--- /dev/null
+++ b/vendor/derive_builder/tests/forward_allow_attr.rs
@@ -0,0 +1,24 @@
+#![deny(non_snake_case)]
+
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Builder)]
+// If this attribute is not forwarded to both the struct and the impl block, there would
+// be a compile error on either the field or the setter method name. Therefore, forwarding
+// is working as-expected if this test compiles.
+#[allow(non_snake_case)]
+pub struct Example {
+    aPascalName: &'static str,
+}
+
+fn main() {
+    assert_eq!(
+        ExampleBuilder::default()
+            .aPascalName("hello")
+            .build()
+            .unwrap()
+            .aPascalName,
+        "hello"
+    );
+}
diff --git a/vendor/derive_builder/tests/forward_serde_attrs.rs b/vendor/derive_builder/tests/forward_serde_attrs.rs
new file mode 100644
index 000000000..2ba7bcf80
--- /dev/null
+++ b/vendor/derive_builder/tests/forward_serde_attrs.rs
@@ -0,0 +1,29 @@
+#[macro_use]
+extern crate derive_builder;
+extern crate serde;
+extern crate serde_json;
+
+#[derive(Builder)]
+#[builder(setter(into), derive(serde::Serialize))]
+#[builder_struct_attr(serde(rename_all = "camelCase"))]
+#[allow(dead_code)]
+struct Example {
+    first_name: String,
+    middle_name: String,
+    #[builder_field_attr(serde(rename = "familyName"))]
+    last_name: String,
+}
+
+#[test]
+fn serialize_builder() {
+    assert_eq!(
+        serde_json::to_string(
+            &ExampleBuilder::default()
+                .first_name("Jane")
+                .middle_name("Alice")
+                .last_name("Doe"),
+        )
+        .unwrap(),
+        r#"{"firstName":"Jane","middleName":"Alice","familyName":"Doe"}"#
+    );
+}
diff --git a/vendor/derive_builder/tests/generic_structs.rs b/vendor/derive_builder/tests/generic_structs.rs
new file mode 100644
index 000000000..f5119f55c
--- /dev/null
+++ b/vendor/derive_builder/tests/generic_structs.rs
@@ -0,0 +1,59 @@
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+use std::clone::Clone;
+use std::fmt::Display;
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+struct Generic<T: Display>
+where
+    T: Clone,
+{
+    ipsum: &'static str,
+    pub dolor: T,
+}
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+pub struct GenericReference<'a, T: 'a + Default>
+where
+    T: Display,
+{
+    pub bar: Option<&'a T>,
+}
+
+#[test]
+fn error_if_uninitialized() {
+    let error = GenericBuilder::<String>::default().build().unwrap_err();
+    assert_eq!(&error.to_string(), "`ipsum` must be initialized");
+}
+
+#[test]
+fn generic_builder() {
+    let x = GenericBuilder::default()
+        .ipsum("Generic")
+        .dolor(true)
+        .build()
+        .unwrap();
+
+    assert_eq!(
+        x,
+        Generic {
+            ipsum: "Generic".into(),
+            dolor: true,
+        }
+    );
+}
+
+#[test]
+fn generic_reference_builder() {
+    static BAR: u32 = 42;
+
+    let x = GenericReferenceBuilder::<'static, u32>::default()
+        .bar(Some(&BAR))
+        .build()
+        .unwrap();
+
+    assert_eq!(x, GenericReference { bar: Some(&BAR) });
+}
diff --git a/vendor/derive_builder/tests/generic_with_default.rs b/vendor/derive_builder/tests/generic_with_default.rs
new file mode 100644
index 000000000..81a5eaa23
--- /dev/null
+++ b/vendor/derive_builder/tests/generic_with_default.rs
@@ -0,0 +1,38 @@
+#[macro_use]
+extern crate derive_builder;
+#[macro_use]
+extern crate pretty_assertions;
+
+/// Struct taken from `@shockham/caper` to make sure we emit the correct
+/// code for struct-level defaults in tandem with generics.
+#[derive(Builder, Clone, PartialEq)]
+#[builder(default)]
+pub struct RenderItem<T: Default> {
+    /// The vertices representing this items mesh
+    pub vertices: Vec<()>,
+    /// Whether the item is active/should be rendered
+    pub active: bool,
+    /// The name of the RenderItem for lookup
+    pub name: String,
+    /// Tag Type for grouping similar items
+    pub tag: T,
+}
+
+impl<T: Default> Default for RenderItem<T> {
+    fn default() -> Self {
+        RenderItem {
+            vertices: Default::default(),
+            active: true,
+            name: "ri".into(),
+            tag: Default::default(),
+        }
+    }
+}
+
+#[test]
+fn create_with_string() {
+    let ri: RenderItem<String> = RenderItemBuilder::default().build().unwrap();
+    assert_eq!(ri.tag, "");
+    assert_eq!(ri.name, "ri");
+    assert!(ri.active);
+}
diff --git a/vendor/derive_builder/tests/ignore/no_std.rs b/vendor/derive_builder/tests/ignore/no_std.rs
new file mode 100644
index 000000000..d31f87f23
--- /dev/null
+++ b/vendor/derive_builder/tests/ignore/no_std.rs
@@ -0,0 +1,87 @@
+//! Compile behavior test for derive_builder on no_std. Unfortunately, this has broken
+//! too many times due to changes in requirements for no_std, and therefore this test
+//! is no longer part of the required nightly pass.
+
+// requires nightly toolchain!
+//
+// compile-flags:-C panic=abort
+#![no_std]
+#![feature(alloc, allocator_api, lang_items, start, core_intrinsics, oom)]
+#![allow(dead_code)]
+use core::intrinsics;
+use core::panic::PanicInfo;
+
+
+// Pull in the system libc library for what crt0.o likely requires.
+// extern crate libc;
+
+#[macro_use]
+extern crate derive_builder;
+extern crate alloc;
+
+#[derive(Builder)]
+#[builder(no_std)]
+struct IgnoreEmptyStruct {}
+
+#[derive(Builder, PartialEq, Debug)]
+#[builder(no_std)]
+struct Foo {
+    #[builder(default)]
+    defaulted: u32,
+    #[builder(setter(skip), try_setter)]
+    skipped: u32,
+}
+
+fn main() {
+    let foo = FooBuilder::default()
+        .build()
+        .unwrap();
+
+    assert_eq!(foo, Foo {
+        defaulted: 0,
+        skipped: 0,
+    })
+}
+
+///////////////////////////////////////////////////////////////
+// some no_std-boilerplate
+// from https://doc.rust-lang.org/book/no-stdlib.html
+///////////////////////////////////////////////////////////////
+
+// These functions and traits are used by the compiler, but not
+// for a bare-bones hello world. These are normally
+// provided by libstd.
+#[lang = "eh_personality"]
+#[no_mangle]
+pub extern  fn eh_personality() {}
+
+// This function may be needed based on the compilation target.
+#[lang = "eh_unwind_resume"]
+#[no_mangle]
+pub extern fn rust_eh_unwind_resume() {
+}
+
+#[panic_handler]
+#[no_mangle]
+fn panic(_info: &PanicInfo) -> ! {
+    unsafe { intrinsics::abort() }
+}
+
+#[lang = "oom"]
+#[no_mangle]
+pub extern fn rust_oom(_: core::alloc::Layout) -> ! {
+    unsafe { intrinsics::abort() }
+}
+
+#[allow(non_snake_case)]
+#[no_mangle]
+pub extern "C" fn _Unwind_Resume() -> ! {
+    unsafe { intrinsics::abort() }
+}
+
+// Entry point for this program
+#[start]
+fn start(_argc: isize, _argv: *const *const u8) -> isize {
+    main();
+    0
+}
diff --git a/vendor/derive_builder/tests/lifetime.rs b/vendor/derive_builder/tests/lifetime.rs
new file mode 100644
index 000000000..13f2a08e2
--- /dev/null
+++ b/vendor/derive_builder/tests/lifetime.rs
@@ -0,0 +1,22 @@
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+struct Lorem<'a> {
+    ipsum: &'a str,
+}
+
+#[test]
+fn error_if_uninitialized() {
+    let error = LoremBuilder::default().build().unwrap_err();
+    assert_eq!(&error.to_string(), "`ipsum` must be initialized");
+}
+
+#[test]
+fn builder_test() {
+    let x = LoremBuilder::default().ipsum("ipsum").build().unwrap();
+
+    assert_eq!(x, Lorem { ipsum: "ipsum" });
+}
diff --git a/vendor/derive_builder/tests/run-pass/attributes.rs b/vendor/derive_builder/tests/run-pass/attributes.rs
new file mode 100644
index 000000000..46a6fd8f3
--- /dev/null
+++ b/vendor/derive_builder/tests/run-pass/attributes.rs
@@ -0,0 +1,22 @@
+#[macro_use]
+extern crate derive_builder;
+
+/// This is a doc comment for the struct
+#[warn(missing_docs)]
+#[allow(non_snake_case, dead_code)]
+#[derive(Builder)]
+struct Lorem {
+    /// This is a doc comment for a field
+    field_with_doc_comment: String,
+    #[allow(missing_docs)]
+    undocumented: String,
+    #[allow(non_snake_case)]
+    CamelCase: i32,
+    #[cfg(target_os = "macos")]
+    mac_only: bool,
+    #[allow(non_snake_case)]
+    #[cfg(target_os = "linux")]
+    LinuxOnly: (),
+}
+
+fn main() { }
diff --git a/vendor/derive_builder/tests/run-pass/crate_alias.rs b/vendor/derive_builder/tests/run-pass/crate_alias.rs
new file mode 100644
index 000000000..d2e6b473b
--- /dev/null
+++ b/vendor/derive_builder/tests/run-pass/crate_alias.rs
@@ -0,0 +1,24 @@
+//! Test that an alias of derive_builder is valid in #[builder(crate = "...")]
+//!
+//! This test is imperfect, as it still passes without setting `crate = "..."`.
+//! This is likely because `derive_builder` is automatically present in 2018
+//! without needing the extern crate line.
+//!
+//! The test will fail if an incorrect alias is used, so it adds limited value.
+
+#[macro_use]
+extern crate derive_builder as db;
+
+#[derive(Builder)]
+#[builder(crate = "db")]
+struct AliasedCrate {
+    #[builder(setter(into))]
+    lorem: String,
+}
+
+fn main() {
+    AliasedCrateBuilder::default()
+        .lorem("hello")
+        .build()
+        .unwrap();
+}
diff --git a/vendor/derive_builder/tests/run-pass/custom_error_default.rs b/vendor/derive_builder/tests/run-pass/custom_error_default.rs
new file mode 100644
index 000000000..da0d8f62a
--- /dev/null
+++ b/vendor/derive_builder/tests/run-pass/custom_error_default.rs
@@ -0,0 +1,49 @@
+//! This test ensures custom errors don't need a conversion from `UninitializedFieldError`
+//! if uninitialized fields are impossible.
+
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Default, Builder)]
+#[builder(default, build_fn(validate = "check_person", error = "Error"))]
+struct Person {
+    name: String,
+    age: u16,
+}
+
+/// An error that deliberately doesn't have `impl From<UninitializedFieldError>`; as long
+/// as `PersonBuilder` uses `Person::default` then missing field errors are never possible.
+enum Error {
+    UnpopularName(String),
+    UnrealisticAge(u16),
+}
+
+fn check_age_realistic(age: u16) -> Result<(), Error> {
+    if age > 150 {
+        Err(Error::UnrealisticAge(age))
+    } else {
+        Ok(())
+    }
+}
+
+fn check_name_popular(name: &str) -> Result<(), Error> {
+    if name.starts_with('B') {
+        Err(Error::UnpopularName(name.to_string()))
+    } else {
+        Ok(())
+    }
+}
+
+fn check_person(builder: &PersonBuilder) -> Result<(), Error> {
+    if let Some(age) = &builder.age {
+        check_age_realistic(*age)?;
+    }
+
+    if let Some(name) = &builder.name {
+        check_name_popular(name)?;
+    }
+
+    Ok(())
+}
+
+fn main() {}
diff --git a/vendor/derive_builder/tests/run-pass/custom_types.rs b/vendor/derive_builder/tests/run-pass/custom_types.rs
new file mode 100644
index 000000000..2b4f999e2
--- /dev/null
+++ b/vendor/derive_builder/tests/run-pass/custom_types.rs
@@ -0,0 +1,30 @@
+#![allow(dead_code)]
+
+#[macro_use]
+extern crate derive_builder;
+
+struct Unit;
+
+type Clone = Unit;
+type Into = Unit;
+type Option = Unit;
+type Result = Unit;
+type Some = Unit;
+type String = Unit;
+
+impl core::fmt::Debug for Unit {
+    fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
+        write!(f, "()")
+    }
+}
+
+impl core::fmt::Display for Unit {
+    fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
+        write!(f, "()")
+    }
+}
+
+#[derive(Builder)]
+struct IgnoreEmptyStruct {}
+
+fn main() { }
diff --git a/vendor/derive_builder/tests/run-pass/empty_struct.rs b/vendor/derive_builder/tests/run-pass/empty_struct.rs
new file mode 100644
index 000000000..f346c6872
--- /dev/null
+++ b/vendor/derive_builder/tests/run-pass/empty_struct.rs
@@ -0,0 +1,8 @@
+#[macro_use]
+extern crate derive_builder;
+
+#[allow(dead_code)]
+#[derive(Builder)]
+struct IgnoreEmptyStruct {}
+
+fn main() { }
diff --git a/vendor/derive_builder/tests/run-pass/multiple_derives.rs b/vendor/derive_builder/tests/run-pass/multiple_derives.rs
new file mode 100644
index 000000000..8379340df
--- /dev/null
+++ b/vendor/derive_builder/tests/run-pass/multiple_derives.rs
@@ -0,0 +1,16 @@
+#[macro_use]
+extern crate derive_builder;
+
+#[allow(dead_code)]
+#[derive(Builder)]
+struct Foo {
+    lorem: bool,
+}
+
+#[allow(dead_code)]
+#[derive(Builder)]
+struct Bar {
+    ipsum: bool,
+}
+
+fn main() { }
diff --git a/vendor/derive_builder/tests/setter_custom.rs b/vendor/derive_builder/tests/setter_custom.rs
new file mode 100644
index 000000000..3a3d38498
--- /dev/null
+++ b/vendor/derive_builder/tests/setter_custom.rs
@@ -0,0 +1,86 @@
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+#[builder(setter(skip = "false"), default)]
+struct SetterCustom {
+    #[builder(setter(custom = "true"))]
+    setter_custom_by_explicit_opt_in: u32,
+    #[builder(setter(custom))]
+    setter_custom_shorthand: u32,
+    #[builder(setter(custom = "false"))]
+    setter_custom_by_explicit_opt_out: u32,
+    #[builder(setter(custom = "true"), default = "4")]
+    setter_custom_with_explicit_default: u32,
+    #[builder(setter(custom = "true", strip_option))]
+    setter_custom_with_strip_option: Option<u32>,
+}
+
+// compile test
+#[allow(dead_code)]
+impl SetterCustomBuilder {
+    // only possible if setter was skipped
+    fn setter_custom_by_explicit_opt_in(&mut self) -> &mut Self {
+        self.setter_custom_by_explicit_opt_in = Some(1);
+        self
+    }
+
+    // only possible if setter was skipped
+    fn setter_custom_shorthand(&mut self) -> &mut Self {
+        self.setter_custom_shorthand = Some(2);
+        self
+    }
+
+    // only possible if setter was skipped
+    fn setter_custom_with_explicit_default(&mut self) -> &mut Self {
+        self.setter_custom_with_explicit_default = Some(43);
+        self
+    }
+
+    // only possible if setter was skipped
+    fn setter_custom_with_strip_option(&mut self) -> &mut Self {
+        self.setter_custom_with_strip_option = Some(Some(6));
+        self
+    }
+}
+
+#[test]
+fn setter_custom_defaults() {
+    let x: SetterCustom = SetterCustomBuilder::default().build().unwrap();
+
+    assert_eq!(
+        x,
+        SetterCustom {
+            setter_custom_by_explicit_opt_in: 0,
+            setter_custom_shorthand: 0,
+            setter_custom_by_explicit_opt_out: 0,
+            setter_custom_with_explicit_default: 4,
+            setter_custom_with_strip_option: None,
+        }
+    );
+}
+
+#[test]
+fn setter_custom_setters_called() {
+    let x: SetterCustom = SetterCustomBuilder::default()
+        .setter_custom_by_explicit_opt_in() // set to 1
+        .setter_custom_shorthand() // set to 2
+        .setter_custom_by_explicit_opt_out(42)
+        .setter_custom_with_explicit_default() // set to 43
+        .setter_custom_with_strip_option() // set to 6
+        .build()
+        .unwrap();
+
+    assert_eq!(
+        x,
+        SetterCustom {
+            setter_custom_by_explicit_opt_in: 1,
+            setter_custom_shorthand: 2,
+            setter_custom_by_explicit_opt_out: 42,
+            setter_custom_with_explicit_default: 43,
+            setter_custom_with_strip_option: Some(6)
+        }
+    );
+}
diff --git a/vendor/derive_builder/tests/setter_extend.rs b/vendor/derive_builder/tests/setter_extend.rs
new file mode 100644
index 000000000..496c656d3
--- /dev/null
+++ b/vendor/derive_builder/tests/setter_extend.rs
@@ -0,0 +1,160 @@
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+use std::collections::HashMap;
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+struct Lorem {
+    #[builder(setter(each = "foo_append"))]
+    foo: String,
+    #[builder(setter(each = "bar"))]
+    bars: Vec<String>,
+    #[builder(setter(each = "baz"))]
+    bazes: HashMap<String, i32>,
+    #[builder(setter(strip_option, each = "qux"))]
+    quxes: Option<Vec<String>>,
+    #[builder(setter(strip_option, each = "quux"))]
+    quuxes: Option<HashMap<String, i32>>,
+}
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+#[builder(pattern = "mutable")]
+struct Ipsum {
+    #[builder(setter(each(name = "foo_append")))]
+    foo: String,
+    #[builder(setter(each(name = "bar")))]
+    bars: Vec<String>,
+    #[builder(setter(each(name = "baz")))]
+    bazes: HashMap<String, i32>,
+    #[builder(setter(strip_option, each = "qux"))]
+    quxes: Option<Vec<String>>,
+    #[builder(setter(strip_option, each = "quux"))]
+    quuxes: Option<HashMap<String, i32>>,
+}
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+#[builder]
+struct Dolor {
+    #[builder(setter(each(name = "foo_append")))]
+    foo: String,
+    #[builder(setter(each(name = "bar", into)))]
+    bars: Vec<String>,
+    #[builder(setter(each(name = "baz")))]
+    bazes: HashMap<String, i32>,
+}
+
+#[test]
+fn extend_field() {
+    let x = LoremBuilder::default()
+        .foo("foo".into())
+        .bar("bar".into())
+        .bar("bar bar".into())
+        .bar("bar bar bar".into())
+        .foo_append('-')
+        .baz(("baz".into(), 1))
+        .baz(("bazz".into(), 2))
+        .baz(("bazzz".into(), 3))
+        .foo_append("foo")
+        .qux("qux".into())
+        .qux("qux qux".into())
+        .quux(("quux".into(), 1))
+        .quux(("quuxx".into(), 2))
+        .build()
+        .unwrap();
+
+    assert_eq!(
+        x,
+        Lorem {
+            foo: "foo-foo".into(),
+            bars: vec!["bar".into(), "bar bar".into(), "bar bar bar".into()],
+            bazes: vec![("baz".into(), 1), ("bazz".into(), 2), ("bazzz".into(), 3)]
+                .into_iter()
+                .collect(),
+            quxes: Some(vec!["qux".into(), "qux qux".into()]),
+            quuxes: Some(
+                vec![("quux".into(), 1), ("quuxx".into(), 2)]
+                    .into_iter()
+                    .collect()
+            ),
+        }
+    );
+}
+
+#[test]
+fn extend_field_into() {
+    let x = DolorBuilder::default()
+        .foo("foo".into())
+        .bar("bar")
+        .bar("bar bar")
+        .bar("bar bar bar")
+        .foo_append('-')
+        .baz(("baz".into(), 1))
+        .baz(("bazz".into(), 2))
+        .baz(("bazzz".into(), 3))
+        .foo_append("foo")
+        .build()
+        .unwrap();
+
+    assert_eq!(
+        x,
+        Dolor {
+            foo: "foo-foo".into(),
+            bars: vec!["bar".into(), "bar bar".into(), "bar bar bar".into()],
+            bazes: vec![("baz".into(), 1), ("bazz".into(), 2), ("bazzz".into(), 3)]
+                .into_iter()
+                .collect(),
+        }
+    );
+}
+
+#[test]
+fn extend_field_mutable() {
+    let x = IpsumBuilder::default()
+        .foo("foo".into())
+        .bar("bar".into())
+        .bar("bar bar".into())
+        .bar("bar bar bar".into())
+        .foo_append('-')
+        .baz(("baz".into(), 1))
+        .baz(("bazz".into(), 2))
+        .baz(("bazzz".into(), 3))
+        .foo_append("foo")
+        .qux("qux".into())
+        .qux("qux qux".into())
+        .quux(("quux".into(), 1))
+        .quux(("quuxx".into(), 2))
+        .build()
+        .unwrap();
+
+    assert_eq!(
+        x,
+        Ipsum {
+            foo: "foo-foo".into(),
+            bars: vec!["bar".into(), "bar bar".into(), "bar bar bar".into()],
+            bazes: vec![("baz".into(), 1), ("bazz".into(), 2), ("bazzz".into(), 3)]
+                .into_iter()
+                .collect(),
+            quxes: Some(vec!["qux".into(), "qux qux".into()]),
+            quuxes: Some(
+                vec![("quux".into(), 1), ("quuxx".into(), 2)]
+                    .into_iter()
+                    .collect()
+            ),
+        }
+    );
+}
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+#[builder(setter(skip))]
+struct Sit {
+    #[builder(setter(each(name = "foo")))]
+    foos: Vec<i32>,
+}
+
+#[test]
+fn extend_field_enabled() {
+    let x = SitBuilder::default().foo(1).foo(2).build().unwrap();
+    assert_eq!(x, Sit { foos: vec![1, 2] });
+}
diff --git a/vendor/derive_builder/tests/setter_into.rs b/vendor/derive_builder/tests/setter_into.rs
new file mode 100644
index 000000000..b73852d88
--- /dev/null
+++ b/vendor/derive_builder/tests/setter_into.rs
@@ -0,0 +1,35 @@
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+struct Lorem {
+    #[builder(setter(into))]
+    foo: String,
+}
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+#[builder(setter(into))]
+struct Ipsum {
+    foo: u32,
+}
+
+#[test]
+fn generic_field() {
+    let x = LoremBuilder::default().foo("foo").build().unwrap();
+
+    assert_eq!(
+        x,
+        Lorem {
+            foo: "foo".to_string()
+        }
+    );
+}
+
+#[test]
+fn generic_struct() {
+    let x = IpsumBuilder::default().foo(42u8).build().unwrap();
+
+    assert_eq!(x, Ipsum { foo: 42u32 });
+}
diff --git a/vendor/derive_builder/tests/setter_name.rs b/vendor/derive_builder/tests/setter_name.rs
new file mode 100644
index 000000000..e1ddade84
--- /dev/null
+++ b/vendor/derive_builder/tests/setter_name.rs
@@ -0,0 +1,29 @@
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+#[builder(setter(prefix = "with"))]
+struct Lorem {
+    ipsum: &'static str,
+    #[builder(setter(name = "foo"))]
+    pub dolor: &'static str,
+}
+
+#[test]
+fn renamed_setter() {
+    let x = LoremBuilder::default()
+        .with_ipsum("ipsum")
+        .foo("dolor")
+        .build()
+        .unwrap();
+
+    assert_eq!(
+        x,
+        Lorem {
+            ipsum: "ipsum",
+            dolor: "dolor",
+        }
+    );
+}
diff --git a/vendor/derive_builder/tests/setter_pattern.rs b/vendor/derive_builder/tests/setter_pattern.rs
new file mode 100644
index 000000000..b4454891e
--- /dev/null
+++ b/vendor/derive_builder/tests/setter_pattern.rs
@@ -0,0 +1,107 @@
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+#[builder(pattern = "immutable")]
+struct Lorem {
+    immutable: u32,
+    #[builder(pattern = "mutable")]
+    mutable_override: u32,
+}
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+#[builder(pattern = "mutable")]
+struct Ipsum {
+    mutable: u32,
+    #[builder(pattern = "owned")]
+    owned_override: u32,
+}
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+#[builder(pattern = "owned")]
+struct Dolor {
+    #[builder(pattern = "immutable")]
+    immutable_override: u32,
+    owned: u32,
+}
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+struct Sit {
+    default: u32,
+}
+
+type ImmutableSetter<T, U> = fn(&T, U) -> T;
+type OwnedSetter<T, U> = fn(T, U) -> T;
+type MutableSetter<T, U> = fn(&mut T, U) -> &mut T;
+
+#[test]
+fn mutable_by_default() {
+    // the setter must have the correct signature
+    let mutable_setter: MutableSetter<SitBuilder, u32> = SitBuilder::default;
+
+    let mut old = <SitBuilder as Default>::default();
+    mutable_setter(&mut old, 42);
+    assert_eq!(old.default, Some(42));
+}
+
+#[test]
+fn mutable() {
+    // the setter must have the correct signature
+    let mutable_setter: MutableSetter<IpsumBuilder, u32> = IpsumBuilder::mutable;
+
+    let mut old = IpsumBuilder::default();
+    mutable_setter(&mut old, 42);
+    assert_eq!(old.mutable, Some(42));
+}
+
+#[test]
+fn mutable_override() {
+    // the setter must have the correct signature
+    let mutable_setter: MutableSetter<LoremBuilder, u32> = LoremBuilder::mutable_override;
+
+    let mut old = LoremBuilder::default();
+    mutable_setter(&mut old, 42);
+    assert_eq!(old.mutable_override, Some(42));
+}
+
+#[test]
+fn immutable() {
+    // the setter must have the correct signature
+    let immutable_setter: ImmutableSetter<LoremBuilder, u32> = LoremBuilder::immutable;
+
+    let old = LoremBuilder::default();
+    let new = immutable_setter(&old, 42);
+    assert_eq!(new.immutable, Some(42));
+}
+
+#[test]
+fn immutable_override() {
+    // the setter must have the correct signature
+    let immutable_setter: ImmutableSetter<DolorBuilder, u32> = DolorBuilder::immutable_override;
+
+    let old = DolorBuilder::default();
+    let new = immutable_setter(&old, 42);
+    assert_eq!(new.immutable_override, Some(42));
+}
+
+#[test]
+fn owned() {
+    // the setter must have the correct signature
+    let owned_setter: OwnedSetter<DolorBuilder, u32> = DolorBuilder::owned;
+
+    let old = DolorBuilder::default();
+    let new = owned_setter(old, 42);
+    assert_eq!(new.owned, Some(42));
+}
+
+#[test]
+fn owned_override() {
+    // the setter must have the correct signature
+    let owned_setter: OwnedSetter<IpsumBuilder, u32> = IpsumBuilder::owned_override;
+
+    let old = IpsumBuilder::default();
+    let new = owned_setter(old, 42);
+    assert_eq!(new.owned_override, Some(42));
+}
diff --git a/vendor/derive_builder/tests/setter_prefix.rs b/vendor/derive_builder/tests/setter_prefix.rs
new file mode 100644
index 000000000..2b423c7c7
--- /dev/null
+++ b/vendor/derive_builder/tests/setter_prefix.rs
@@ -0,0 +1,29 @@
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+#[builder(setter(prefix = "with"))]
+struct Lorem {
+    ipsum: &'static str,
+    #[builder(setter(prefix = "set"))]
+    pub dolor: &'static str,
+}
+
+#[test]
+fn prefixed_setters() {
+    let x = LoremBuilder::default()
+        .with_ipsum("ipsum")
+        .set_dolor("dolor")
+        .build()
+        .unwrap();
+
+    assert_eq!(
+        x,
+        Lorem {
+            ipsum: "ipsum",
+            dolor: "dolor",
+        }
+    );
+}
diff --git a/vendor/derive_builder/tests/setter_strip_option.rs b/vendor/derive_builder/tests/setter_strip_option.rs
new file mode 100644
index 000000000..d502340c6
--- /dev/null
+++ b/vendor/derive_builder/tests/setter_strip_option.rs
@@ -0,0 +1,64 @@
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+struct Lorem {
+    #[builder(setter(into))]
+    full_opt: Option<String>,
+    #[builder(setter(into, strip_option))]
+    strip_opt: Option<String>,
+    #[builder(setter(strip_option))]
+    strip_opt_i32: Option<i32>,
+    #[builder(setter(strip_option))]
+    strip_opt_vec: Option<Vec<i32>>,
+}
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+#[builder(setter(into, strip_option))]
+struct Ipsum {
+    foo: u32,
+    strip_opt: Option<String>,
+    #[builder(default)]
+    strip_opt_with_default: Option<String>,
+}
+
+#[test]
+fn generic_field() {
+    let x = LoremBuilder::default()
+        .full_opt(Some("foo".to_string()))
+        .strip_opt("bar")
+        .strip_opt_i32(32)
+        .strip_opt_vec(vec![33])
+        .build()
+        .unwrap();
+
+    assert_eq!(
+        x,
+        Lorem {
+            full_opt: Some("foo".to_string()),
+            strip_opt: Some("bar".to_string()),
+            strip_opt_i32: Some(32),
+            strip_opt_vec: Some(vec![33]),
+        }
+    );
+}
+
+#[test]
+fn generic_struct() {
+    let x = IpsumBuilder::default()
+        .foo(42u8)
+        .strip_opt("bar")
+        .build()
+        .unwrap();
+
+    assert_eq!(
+        x,
+        Ipsum {
+            foo: 42u32,
+            strip_opt: Some("bar".to_string()),
+            strip_opt_with_default: None,
+        }
+    );
+}
diff --git a/vendor/derive_builder/tests/setter_visibility.rs b/vendor/derive_builder/tests/setter_visibility.rs
new file mode 100644
index 000000000..999509348
--- /dev/null
+++ b/vendor/derive_builder/tests/setter_visibility.rs
@@ -0,0 +1,63 @@
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+pub mod foo {
+    #[derive(Debug, PartialEq, Default, Builder, Clone)]
+    #[builder(private, setter(into))]
+    pub struct Lorem {
+        pub private: String,
+        #[builder(public)]
+        pub public: String,
+    }
+
+    #[derive(Debug, PartialEq, Default, Builder, Clone)]
+    #[builder(public, setter(into))]
+    pub struct Ipsum {
+        #[builder(private)]
+        pub private: String,
+        pub public: String,
+    }
+
+    #[test]
+    fn setters_same_module() {
+        let x = LoremBuilder::default()
+            .public("Hello")
+            .private("world!")
+            .build()
+            .unwrap();
+
+        assert_eq!(
+            x,
+            Lorem {
+                public: "Hello".into(),
+                private: "world!".into(),
+            }
+        );
+
+        let y = IpsumBuilder::default()
+            .public("Hello")
+            .private("world!")
+            .build()
+            .unwrap();
+
+        assert_eq!(
+            y,
+            Ipsum {
+                public: "Hello".into(),
+                private: "world!".into(),
+            }
+        );
+    }
+}
+
+#[test]
+fn public_setters_foreign_module() {
+    let error = foo::IpsumBuilder::default()
+        .public("Hello")
+        .build()
+        .unwrap_err();
+
+    assert_eq!(&error.to_string(), "`private` must be initialized");
+}
diff --git a/vendor/derive_builder/tests/skip-setter.rs b/vendor/derive_builder/tests/skip-setter.rs
new file mode 100644
index 000000000..dbb4d62e6
--- /dev/null
+++ b/vendor/derive_builder/tests/skip-setter.rs
@@ -0,0 +1,138 @@
+// https://github.com/colin-kiegel/rust-derive-builder/issues/15
+#[macro_use]
+extern crate pretty_assertions;
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, Clone, PartialEq)]
+struct NotDefaultable(String);
+
+fn new_notdefaultable() -> NotDefaultable {
+    NotDefaultable("Lorem".to_string())
+}
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+#[builder(setter(skip = "false"))]
+struct SetterOptOut {
+    setter_present_by_explicit_default: u32,
+    #[builder(setter(skip = "true"))]
+    setter_skipped_by_explicit_opt_out: u32,
+    #[builder(setter(skip))]
+    setter_skipped_by_shorthand_opt_out: u32,
+    #[builder(setter(skip), default = "4")]
+    setter_skipped_with_explicit_default: u32,
+}
+
+#[derive(Debug, PartialEq, Default, Builder, Clone)]
+#[builder(setter(skip))]
+struct SetterOptIn {
+    setter_skipped_by_shorthand_default: u32,
+    #[builder(setter(skip = false))] // Should be still OK without quotes
+    setter_present_by_explicit_opt_in: u32,
+    #[builder(setter)]
+    setter_present_by_shorthand_opt_in: u32,
+    #[builder(setter(prefix = "set"))]
+    setter_present_by_shorthand_opt_in_2: u32,
+}
+
+#[derive(Debug, PartialEq, Builder, Clone)]
+#[builder(default, setter(skip))]
+struct SetterOptInStructDefault {
+    setter_skipped_with_struct_default: NotDefaultable,
+    setter_skipped_with_type_default: u32,
+}
+
+#[derive(Debug, PartialEq, Builder, Clone)]
+#[builder(setter(into))]
+struct SetterOptInFieldDefault {
+    #[builder(setter(skip), default = "new_notdefaultable()")]
+    setter_skipped_with_field_default: NotDefaultable,
+
+    #[builder(default)]
+    setter_present_by_default: u32,
+}
+
+// compile test
+#[allow(dead_code)]
+impl SetterOptOut {
+    // only possible if setter was skipped
+    fn setter_skipped_by_explicit_opt_out() {}
+    // only possible if setter was skipped
+    fn setter_skipped_by_shorthand_opt_out() {}
+}
+
+// compile test
+#[allow(dead_code)]
+impl SetterOptIn {
+    // only possible if setter was skipped
+    fn setter_skipped_by_shorthand_default() {}
+}
+
+impl Default for SetterOptInStructDefault {
+    fn default() -> Self {
+        SetterOptInStructDefault {
+            setter_skipped_with_struct_default: new_notdefaultable(),
+            setter_skipped_with_type_default: Default::default(),
+        }
+    }
+}
+
+#[test]
+fn setter_opt_out() {
+    let x: SetterOptOut = SetterOptOutBuilder::default()
+        .setter_present_by_explicit_default(42u32)
+        .build()
+        .unwrap();
+
+    assert_eq!(
+        x,
+        SetterOptOut {
+            setter_present_by_explicit_default: 42,
+            setter_skipped_by_explicit_opt_out: 0,
+            setter_skipped_by_shorthand_opt_out: 0,
+            setter_skipped_with_explicit_default: 4,
+        }
+    );
+}
+
+#[test]
+fn setter_opt_in() {
+    let x: SetterOptIn = SetterOptInBuilder::default()
+        .setter_present_by_explicit_opt_in(47u32)
+        .setter_present_by_shorthand_opt_in(11u32)
+        .set_setter_present_by_shorthand_opt_in_2(815u32)
+        .build()
+        .unwrap();
+
+    assert_eq!(
+        x,
+        SetterOptIn {
+            setter_skipped_by_shorthand_default: 0,
+            setter_present_by_explicit_opt_in: 47,
+            setter_present_by_shorthand_opt_in: 11,
+            setter_present_by_shorthand_opt_in_2: 815,
+        }
+    );
+}
+
+#[test]
+fn setter_skipped_with_struct_default() {
+    let x = SetterOptInStructDefaultBuilder::default().build().unwrap();
+
+    assert_eq!(x, SetterOptInStructDefault::default());
+}
+
+#[test]
+fn setter_skipped_with_field_default() {
+    let x = SetterOptInFieldDefaultBuilder::default()
+        .build()
+        .expect("All fields were defaulted");
+
+    assert_eq!(
+        x,
+        SetterOptInFieldDefault {
+            setter_skipped_with_field_default: new_notdefaultable(),
+            setter_present_by_default: Default::default(),
+        }
+    );
+}
diff --git a/vendor/derive_builder/tests/try_setter.rs b/vendor/derive_builder/tests/try_setter.rs
new file mode 100644
index 000000000..28f6a01c0
--- /dev/null
+++ b/vendor/derive_builder/tests/try_setter.rs
@@ -0,0 +1,87 @@
+#[macro_use]
+extern crate derive_builder;
+
+use std::convert::TryFrom;
+use std::net::{AddrParseError, IpAddr};
+use std::str::FromStr;
+use std::string::ToString;
+
+#[derive(Debug, Clone, PartialEq)]
+pub struct MyAddr(IpAddr);
+
+impl From<IpAddr> for MyAddr {
+    fn from(v: IpAddr) -> Self {
+        MyAddr(v)
+    }
+}
+
+impl<'a> TryFrom<&'a str> for MyAddr {
+    type Error = AddrParseError;
+
+    fn try_from(v: &str) -> Result<Self, Self::Error> {
+        Ok(MyAddr(v.parse()?))
+    }
+}
+
+#[derive(Debug, PartialEq, Builder)]
+#[builder(try_setter, setter(into))]
+struct Lorem {
+    pub source: MyAddr,
+    pub dest: MyAddr,
+}
+
+#[derive(Debug, PartialEq, Builder)]
+#[builder(try_setter, setter(into, prefix = "set"))]
+struct Ipsum {
+    pub source: MyAddr,
+}
+
+fn exact_helper() -> Result<Lorem, LoremBuilderError> {
+    LoremBuilder::default()
+        .source(IpAddr::from_str("1.2.3.4").unwrap())
+        .dest(IpAddr::from_str("0.0.0.0").unwrap())
+        .build()
+}
+
+fn try_helper() -> Result<Lorem, LoremBuilderError> {
+    LoremBuilder::default()
+        .try_source("1.2.3.4")
+        .map_err(|e| e.to_string())?
+        .try_dest("0.0.0.0")
+        .map_err(|e| e.to_string())?
+        .build()
+}
+
+#[test]
+fn infallible_set() {
+    let _ = LoremBuilder::default()
+        .source(IpAddr::from_str("1.2.3.4").unwrap())
+        .dest(IpAddr::from_str("0.0.0.0").unwrap())
+        .build();
+}
+
+#[test]
+fn fallible_set() {
+    let mut builder = LoremBuilder::default();
+    let try_result = builder.try_source("1.2.3.4");
+    let built = try_result
+        .expect("Passed well-formed address")
+        .dest(IpAddr::from_str("0.0.0.0").unwrap())
+        .build()
+        .unwrap();
+    assert_eq!(built, exact_helper().unwrap());
+}
+
+#[test]
+fn with_helper() {
+    assert_eq!(exact_helper().unwrap(), try_helper().unwrap());
+}
+
+#[test]
+fn renamed() {
+    IpsumBuilder::default()
+        .try_set_source("0.0.0.0")
+        .unwrap()
+        .build()
+        .expect("All fields were provided");
+}
diff --git a/vendor/derive_builder/tests/validation.rs b/vendor/derive_builder/tests/validation.rs
new file mode 100644
index 000000000..877764281
--- /dev/null
+++ b/vendor/derive_builder/tests/validation.rs
@@ -0,0 +1,79 @@
+#[macro_use]
+extern crate derive_builder;
+
+#[derive(Debug, Clone, Builder, PartialEq, Eq)]
+#[builder(build_fn(validate = "LoremBuilder::validate"))]
+pub struct Lorem {
+    /// A percentile. Must be between 0 and 100.
+    my_effort: u8,
+
+    /// A percentile. Must be less than or equal to `Lorem::my_effort`.
+    #[builder(default = "40")]
+    their_effort: u8,
+
+    /// A percentile. Must be between 0 and 100.
+    rivals_effort: u8,
+}
+
+impl LoremBuilder {
+    /// Performs bound checks.
+    fn validate(&self) -> Result<(), String> {
+        if let Some(ref my_effort) = self.my_effort {
+            if *my_effort > 100 {
+                return Err("Don't wear yourself out".to_string());
+            }
+        }
+
+        if let Some(ref their_effort) = self.their_effort {
+            if *their_effort > 100 {
+                return Err("The game has changed".to_string());
+            }
+        }
+
+        if let Some(ref rivals_effort) = self.rivals_effort {
+            if *rivals_effort > 100 {
+                return Err("Your rival is cheating".to_string());
+            }
+        }
+
+        Ok(())
+    }
+}
+
+#[test]
+fn out_of_bounds() {
+    assert_eq!(
+        &LoremBuilder::default()
+            .my_effort(120)
+            .build()
+            .unwrap_err()
+            .to_string(),
+        "Don't wear yourself out"
+    );
+    assert_eq!(
+        &LoremBuilder::default()
+            .rivals_effort(120)
+            .build()
+            .unwrap_err()
+            .to_string(),
+        "Your rival is cheating"
+    );
+}
+
+#[test]
+fn validation_pass() {
+    let lorem = LoremBuilder::default()
+        .my_effort(90)
+        .rivals_effort(89)
+        .build()
+        .expect("All validations should be passing");
+
+    assert_eq!(
+        lorem,
+        Lorem {
+            my_effort: 90,
+            rivals_effort: 89,
+            their_effort: 40,
+        }
+    );
+}