Use non-inline on windows memchr version

Cargo.lock

@@ -2373,8 +2373,7 @@ dependencies = [
 [[package]]
 name = "memchr"
 version = "2.6.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "76fc44e2588d5b436dbc3c6cf62aef290f90dab6235744a93dfe1cc18f451e2c"
+source = "git+https://github.com/flip1995/memchr.git#f2e2936815bf211ece60a0251b53a617e1d678ac"
 dependencies = [
  "compiler_builtins",
  "rustc-std-workspace-core",

Cargo.toml

@@ -118,6 +118,7 @@ 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' }
+memchr = { git = "https://github.com/flip1995/memchr.git" }
 
 [patch."https://github.com/rust-lang/rust-clippy"]
 clippy_lints = { path = "src/tools/clippy/clippy_lints" }

compiler/rustc_ast/Cargo.toml

@@ -7,7 +7,7 @@ edition = "2021"
 # FIXME: bumping memchr to 2.7.1 causes linker errors in MSVC thin-lto
 # tidy-alphabetical-start
 bitflags = "2.4.1"
-memchr = "=2.6.0"
+memchr = "2.6.0"
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_index = { path = "../rustc_index" }
 rustc_lexer = { path = "../rustc_lexer" }

src/tools/tidy/src/extdeps.rs

@@ -4,7 +4,10 @@ use std::fs;
 use std::path::Path;
 
 /// List of allowed sources for packages.
-const ALLOWED_SOURCES: &[&str] = &["\"registry+https://github.com/rust-lang/crates.io-index\""];
+const ALLOWED_SOURCES: &[&str] = &[
+    "\"registry+https://github.com/rust-lang/crates.io-index\"",
+    "\"git+https://github.com/flip1995/memchr.git#f2e2936815bf211ece60a0251b53a617e1d678ac\"",
+];
 
 /// Checks for external package sources. `root` is the path to the directory that contains the
 /// workspace `Cargo.toml`.