Rollup merge of #23056 - awlnx:master, r=nrc

[rust.git] / src / librustc_back / lib.rs

diff --git a/src/librustc_back/lib.rs b/src/librustc_back/lib.rs
index a7ae9661c3d8329a57585854cf946ad6c08297b1..333c97b446ba3d421e21a7061ca631f25f8949ee 100644 (file)
--- a/src/librustc_back/lib.rs
+++ b/src/librustc_back/lib.rs
@@ -21,6 +21,8 @@
 //! one that doesn't; the one that doesn't might get decent parallel
 //! build speedups.
 
+// Do not remove on snapshot creation. Needed for bootstrap. (Issue #22364)
+#![cfg_attr(stage0, feature(custom_attribute))]
 #![crate_name = "rustc_back"]
 #![unstable(feature = "rustc_private")]
 #![staged_api]