Auto merge of #78767 - m-ou-se:rollup-eu5wgxl, r=m-ou-se

Rollup of 15 pull requests

Successful merges:

 - #76718 (Move Vec UI tests to unit tests when possible)
 - #78093 (Clean up docs for 'as' keyword)
 - #78425 (Move f64::NAN ui tests into `library`)
 - #78465 (Change as_str → to_string in proc_macro::Ident::span() docs)
 - #78584 (Add keyboard handling to the theme picker menu)
 - #78716 (Array trait impl comment/doc fixes)
 - #78727 ((rustdoc) fix test for trait impl display)
 - #78733 (fix a couple of clippy warnings:)
 - #78735 (Simplify the implementation of `get_mut` (no unsafe))
 - #78738 (Move range in ui test to ops test in library/core)
 - #78739 (Fix ICE on type error in async function)
 - #78742 (make intern_const_alloc_recursive return error)
 - #78756 (Update cargo)
 - #78757 (Improve and clean up some intra-doc links)
 - #78758 (Fixed typo in comment)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

1 files changed, 4 insertions, 5 deletions

diff --git a/compiler/rustc_interface/src/util.rs b/compiler/rustc_interface/src/util.rs
index 46a6c5861d5..3ed7d20ae45 100644
--- a/compiler/rustc_interface/src/util.rs
+++ b/compiler/rustc_interface/src/util.rs
@@ -246,10 +246,10 @@ pub fn get_codegen_backend(sopts: &config::Options) -> Box<dyn CodegenBackend> {
 
     INIT.call_once(|| {
         #[cfg(feature = "llvm")]
-        const DEFAULT_CODEGEN_BACKEND: &'static str = "llvm";
+        const DEFAULT_CODEGEN_BACKEND: &str = "llvm";
 
         #[cfg(not(feature = "llvm"))]
-        const DEFAULT_CODEGEN_BACKEND: &'static str = "cranelift";
+        const DEFAULT_CODEGEN_BACKEND: &str = "cranelift";
 
         let codegen_name = sopts
             .debugging_opts
@@ -414,11 +414,10 @@ pub fn get_codegen_sysroot(backend_name: &str) -> fn() -> Box<dyn CodegenBackend
             let libdir = filesearch::relative_target_lib_path(&sysroot, &target);
             sysroot.join(libdir).with_file_name("codegen-backends")
         })
-        .filter(|f| {
+        .find(|f| {
             info!("codegen backend candidate: {}", f.display());
             f.exists()
-        })
-        .next();
+        });
     let sysroot = sysroot.unwrap_or_else(|| {
         let candidates = sysroot_candidates
             .iter()