faster???

Author: compiler-errors

Cargo.lock

@@ -1014,7 +1014,7 @@ dependencies = [
 [[package]]
 name = "derivative"
 version = "2.2.0"
-source = "git+https://github.com/compiler-errors/rust-derivative.git?branch=fast-discriminant#fd1434ceff14441827f68505bc7f13e6d4eec6da"
+source = "git+https://github.com/compiler-errors/rust-derivative.git?rev=fe4c30f#fe4c30f5cf55185d452c453a3b003dd924a880f3"
 dependencies = [
  "proc-macro2",
  "quote",

compiler/rustc_type_ir/Cargo.toml

@@ -12,4 +12,4 @@ rustc_serialize = { path = "../rustc_serialize" }
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_macros = { path = "../rustc_macros" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
-derivative = { git = "https://github.com/compiler-errors/rust-derivative.git", branch = "fast-discriminant" }
+derivative = { git = "https://github.com/compiler-errors/rust-derivative.git", rev = "fe4c30f" }

src/tools/tidy/src/extdeps.rs

@@ -6,7 +6,7 @@ use std::path::Path;
 /// List of allowed sources for packages.
 const ALLOWED_SOURCES: &[&str] = &[
     "\"registry+https://github.com/rust-lang/crates.io-index\"",
-    "\"git+https://github.com/compiler-errors/rust-derivative.git?branch=fast-discriminant#fd1434ceff14441827f68505bc7f13e6d4eec6da\"",
+    "\"git+https://github.com/compiler-errors/rust-derivative.git?rev=fe4c30f#fe4c30f5cf55185d452c453a3b003dd924a880f3\"",
 ];
 
 /// Checks for external package sources. `root` is the path to the directory that contains the