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-rw-r--r--compiler/rustc_target/src/lib.rs4
1 files changed, 3 insertions, 1 deletions
diff --git a/compiler/rustc_target/src/lib.rs b/compiler/rustc_target/src/lib.rs
index 59dbea705..a7deab9d2 100644
--- a/compiler/rustc_target/src/lib.rs
+++ b/compiler/rustc_target/src/lib.rs
@@ -11,11 +11,13 @@
#![feature(assert_matches)]
#![feature(associated_type_bounds)]
#![feature(exhaustive_patterns)]
-#![feature(let_else)]
+#![cfg_attr(bootstrap, feature(let_else))]
#![feature(min_specialization)]
#![feature(never_type)]
#![feature(rustc_attrs)]
#![feature(step_trait)]
+#![deny(rustc::untranslatable_diagnostic)]
+#![deny(rustc::diagnostic_outside_of_impl)]
use std::iter::FromIterator;
use std::path::{Path, PathBuf};