diff --git a/src/test/run-pass/binding/nested-matchs.rs b/src/test/run-pass/binding/nested-matchs.rs
index e1012f3b384..0b37c495074 100644
--- a/src/test/run-pass/binding/nested-matchs.rs
+++ b/src/test/run-pass/binding/nested-matchs.rs
@@ -9,6 +9,7 @@
 // except according to those terms.
 
 // run-pass
+#![allow(unused_mut)] // under NLL we get warning about `bar` below
 fn baz() -> ! { panic!(); }
 
 fn foo() {
diff --git a/src/test/run-pass/issues/issue-30371.rs b/src/test/run-pass/issues/issue-30371.rs
index a3140f6ded2..3877e231527 100644
--- a/src/test/run-pass/issues/issue-30371.rs
+++ b/src/test/run-pass/issues/issue-30371.rs
@@ -10,6 +10,7 @@
 
 // run-pass
 #![allow(unreachable_code)]
+#![allow(unused_mut)] // rust-lang/rust#54586
 #![deny(unused_variables)]
 
 fn main() {
diff --git a/src/test/run-pass/issues/issue-49298.rs b/src/test/run-pass/issues/issue-49298.rs
index 22a34f334cb..6463adc48a8 100644
--- a/src/test/run-pass/issues/issue-49298.rs
+++ b/src/test/run-pass/issues/issue-49298.rs
@@ -10,6 +10,7 @@
 
 // run-pass
 #![feature(test)]
+#![allow(unused_mut)] // under NLL we get warning about `x` below: rust-lang/rust#54499
 
 extern crate test;