Auto merge of #117595 - jyn514:x-clippy, r=albertlarsan68

x clippy

thanks to `@asquared31415` `@albertlarsan68` for all their help, most of this pr is their work

note that this also adds x clippy --stage 0 -Awarnings to x86_64-gnu-llvm-15 to make sure it stays working; that won't gate on any clippy warnings, just enforce that clippy doesn't give a hard error. we can't add --stage 1 until clippy fixes its debug assertions not to panic.

note that `x clippy --stage 1` currently breaks when combined with download-rustc.

unlike the previous prs, this doesn't require changes to clippy (it works by using RUSTC_WRAPPER instead), and supports stage 0

read this commit-by-commit

closes https://github.com/rust-lang/rust/pull/107628; see also https://github.com/rust-lang/rust/pull/106394, https://github.com/rust-lang/rust/pull/97443. fixes https://github.com/rust-lang/rust/issues/95988. helps with https://github.com/rust-lang/rust/issues/76495.

r? bootstrap

1 files changed, 0 insertions, 16 deletions

diff --git a/src/bootstrap/bootstrap.py b/src/bootstrap/bootstrap.py
index 2328dd822af..fea194a80ef 100644
--- a/src/bootstrap/bootstrap.py
+++ b/src/bootstrap/bootstrap.py
@@ -616,22 +616,6 @@ class RustBuild(object):
             with output(self.rustc_stamp()) as rust_stamp:
                 rust_stamp.write(key)
 
-    def _download_component_helper(
-        self, filename, pattern, tarball_suffix, rustc_cache,
-    ):
-        key = self.stage0_compiler.date
-
-        tarball = os.path.join(rustc_cache, filename)
-        if not os.path.exists(tarball):
-            get(
-                self.download_url,
-                "dist/{}/{}".format(key, filename),
-                tarball,
-                self.checksums_sha256,
-                verbose=self.verbose,
-            )
-        unpack(tarball, tarball_suffix, self.bin_root(), match=pattern, verbose=self.verbose)
-
     def should_fix_bins_and_dylibs(self):
         """Whether or not `fix_bin_or_dylib` needs to be run; can only be True
         on NixOS or if config.toml has `build.patch-binaries-for-nix` set.