Auto merge of #131069 - matthiaskrgr:rollup-jg1icf9, r=matthiaskrgr

Rollup of 5 pull requests

Successful merges:

 - #131023 (Copy correct path to clipboard for modules/keywords/primitives)
 - #131035 (Preserve brackets around if-lets and skip while-lets)
 - #131038 (Fix `adt_const_params` leaking `{type error}` in error msg)
 - #131053 (Improve `--print=check-cfg` documentation)
 - #131056 (enable compiler fingerprint logs in verbose mode)

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

1 files changed, 5 insertions, 0 deletions

diff --git a/src/bootstrap/src/core/builder.rs b/src/bootstrap/src/core/builder.rs
index 77cfd404744..c35384ce3c0 100644
--- a/src/bootstrap/src/core/builder.rs
+++ b/src/bootstrap/src/core/builder.rs
@@ -2014,6 +2014,11 @@ impl<'a> Builder<'a> {
             cargo.env("RUSTC_BACKTRACE_ON_ICE", "1");
         }
 
+        if self.is_verbose() {
+            // This provides very useful logs especially when debugging build cache-related stuff.
+            cargo.env("CARGO_LOG", "cargo::core::compiler::fingerprint=info");
+        }
+
         cargo.env("RUSTC_VERBOSE", self.verbosity.to_string());
 
         // Downstream forks of the Rust compiler might want to use a custom libc to add support for