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Fix x.py clippy throwing error about clippy #95766

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Fix x.py clippy throwing error about clippy #95766

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2 changes: 1 addition & 1 deletion src/bootstrap/builder.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1045,7 +1045,7 @@ impl<'a> Builder<'a> {
// Only run clippy on a very limited subset of crates (in particular, not build scripts).
cargo.arg("-Zunstable-options");
// Explicitly does *not* set `--cfg=bootstrap`, since we're using a nightly clippy.
let host_version = Command::new("rustc").arg("--version").output().map_err(|_| ());
let host_version = Command::new(&self.initial_rustc).arg("--version").output().map_err(|_| ());
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Hmm, so this fixes your immediate issue, but it surprises me that it works - it's going to just unconditionally use --cfg bootstrap now, even though it's still using the host clippy. Maybe it didn't come up because this is so soon after the beta bump?

I think ideally the fix would look something like:

  • Download clippy for the bootstrap toolchain in bootstrap.py (look for add_component)
  • Remove all this hacky code running rustc --version; treat it just the same as --cfg=bootstrap for build and check.
  • Either put a todo!() for stages other than 0, or build tool::Clippy in-tree before running them, rather than the host clippy.

let output = host_version.and_then(|output| {
if output.status.success() {
Ok(output)
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