Include *.rmeta files in stdlib sysroot glob (#3860)

redsun82 · krasimirgg · web-flow · commit 5f633d207ef2 · 2026-02-23T10:00:02.000Z
Starting around nightly `2026-01-22` (rustc 1.95.0-nightly), the Rust distribution ships stdlib `.rlib` files as ~440-byte metadata stubs, with full metadata in separate `.rmeta` files alongside them. The [`_build_file_for_stdlib_template`](https://github.com/bazelbuild/rules_rust/blob/42b098b3a891d7425212c39697e436a21fb5399e/rust/private/repository_utils.bzl#L275) glob [only includes `*.rlib`](https://github.com/bazelbuild/rules_rust/blob/42b098b3a891d7425212c39697e436a21fb5399e/rust/private/repository_utils.bzl#L280-L286), so the `.rmeta` files are excluded from the sysroot, causing `error[E0786]: only metadata stub found` errors. This PR adds `*.rmeta` to the glob. Fixes #3859 Co-authored-by: Krasimir Georgiev <krasimir@google.com>
diff --git a/rust/private/repository_utils.bzl b/rust/private/repository_utils.bzl
@@ -280,6 +280,7 @@ rust_stdlib_filegroup(
     srcs = glob(
         [
             "lib/rustlib/{target_triple}/lib/*.rlib",
+            "lib/rustlib/{target_triple}/lib/*.rmeta",
             "lib/rustlib/{target_triple}/lib/*{dylib_ext}*",
             "lib/rustlib/{target_triple}/lib/*{staticlib_ext}",
             "lib/rustlib/{target_triple}/lib/self-contained/**",

Original file line number	Diff line number	Diff line change
`@@ -280,6 +280,7 @@ rust_stdlib_filegroup(`
`280`	`280`	`srcs = glob(`
`281`	`281`	`[`
`282`	`282`	`"lib/rustlib/{target_triple}/lib/*.rlib",`
	`283`	`+ "lib/rustlib/{target_triple}/lib/*.rmeta",`
`283`	`284`	`"lib/rustlib/{target_triple}/lib/{dylib_ext}",`
`284`	`285`	`"lib/rustlib/{target_triple}/lib/*{staticlib_ext}",`
`285`	`286`	`"lib/rustlib/{target_triple}/lib/self-contained/**",`