[DO NOT MERGE] perf run for rustc-hash candidate

Author: orlp

Cargo.lock

@@ -3449,8 +3449,7 @@ dependencies = [
 [[package]]
 name = "rustc-hash"
 version = "1.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08d43f7aa6b08d49f382cde6a7982047c3426db949b1424bc4b7ec9ae12c6ce2"
+source = "git+https://github.com/orlp/rustc-hash/?branch=faster-hash#d5b36344139e1271104307686bb2f59c2cc4f46b"
 
 [[package]]
 name = "rustc-main"

Cargo.toml

@@ -111,3 +111,4 @@ strip = true
 rustc-std-workspace-core = { path = 'library/rustc-std-workspace-core' }
 rustc-std-workspace-alloc = { path = 'library/rustc-std-workspace-alloc' }
 rustc-std-workspace-std = { path = 'library/rustc-std-workspace-std' }
+rustc-hash = { git = "https://github.com/orlp/rustc-hash/", branch = "faster-hash", features = ["nightly"] }