5 files changed, 10 insertions, 14 deletions
diff --git a/vendor/quote/src/ext.rs b/vendor/quote/src/ext.rs
index 9e9b4a505..92c2315b1 100644
--- a/vendor/quote/src/ext.rs
+++ b/vendor/quote/src/ext.rs
@@ -1,7 +1,5 @@
 use super::ToTokens;
-
-use std::iter;
-
+use core::iter;
 use proc_macro2::{TokenStream, TokenTree};
 
 /// TokenStream extension trait with methods for appending tokens.
diff --git a/vendor/quote/src/ident_fragment.rs b/vendor/quote/src/ident_fragment.rs
index 67e2e3393..cf74024b4 100644
--- a/vendor/quote/src/ident_fragment.rs
+++ b/vendor/quote/src/ident_fragment.rs
@@ -1,6 +1,6 @@
+use core::fmt;
 use proc_macro2::{Ident, Span};
 use std::borrow::Cow;
-use std::fmt;
 
 /// Specialized formatting trait used by `format_ident!`.
 ///
diff --git a/vendor/quote/src/lib.rs b/vendor/quote/src/lib.rs
index 2fae3fcfa..35594827f 100644
--- a/vendor/quote/src/lib.rs
+++ b/vendor/quote/src/lib.rs
@@ -81,7 +81,7 @@
 //! ```
 
 // Quote types in rustdoc of other crates get linked to here.
-#![doc(html_root_url = "https://docs.rs/quote/1.0.20")]
+#![doc(html_root_url = "https://docs.rs/quote/1.0.21")]
 #![allow(
     clippy::doc_markdown,
     clippy::missing_errors_doc,
diff --git a/vendor/quote/src/runtime.rs b/vendor/quote/src/runtime.rs
index 3f7e6b280..f3cdded3a 100644
--- a/vendor/quote/src/runtime.rs
+++ b/vendor/quote/src/runtime.rs
@@ -1,11 +1,11 @@
 use crate::{IdentFragment, ToTokens, TokenStreamExt};
-use std::fmt;
-use std::iter;
-use std::ops::BitOr;
+use core::fmt;
+use core::iter;
+use core::ops::BitOr;
 
+pub use core::option::Option;
 pub use proc_macro2::*;
 pub use std::format;
-pub use std::option::Option;
 
 pub struct HasIterator; // True
 pub struct ThereIsNoIteratorInRepetition; // False
@@ -48,8 +48,8 @@ pub mod ext {
     use super::RepInterp;
     use super::{HasIterator as HasIter, ThereIsNoIteratorInRepetition as DoesNotHaveIter};
     use crate::ToTokens;
+    use core::slice;
     use std::collections::btree_set::{self, BTreeSet};
-    use std::slice;
 
     /// Extension trait providing the `quote_into_iter` method on iterators.
     pub trait RepIteratorExt: Iterator + Sized {
diff --git a/vendor/quote/src/to_tokens.rs b/vendor/quote/src/to_tokens.rs
index dbb8dfc36..57487217e 100644
--- a/vendor/quote/src/to_tokens.rs
+++ b/vendor/quote/src/to_tokens.rs
@@ -1,11 +1,9 @@
 use super::TokenStreamExt;
-
+use core::iter;
+use proc_macro2::{Group, Ident, Literal, Punct, Span, TokenStream, TokenTree};
 use std::borrow::Cow;
-use std::iter;
 use std::rc::Rc;
 
-use proc_macro2::{Group, Ident, Literal, Punct, Span, TokenStream, TokenTree};
-
 /// Types that can be interpolated inside a `quote!` invocation.
 ///
 /// [`quote!`]: macro.quote.html