diff --git a/src/test/run-pass/ifmt.rs b/src/test/run-pass/ifmt.rs
index dbc23a63bbadf..c22fb811a7b9e 100644
--- a/src/test/run-pass/ifmt.rs
+++ b/src/test/run-pass/ifmt.rs
@@ -14,6 +14,7 @@
 #![deny(warnings)]
 #![allow(unused_must_use)]
 #![allow(unknown_features)]
+#![allow(unstable)]
 #![feature(box_syntax)]
 
 use std::fmt;
diff --git a/src/test/run-pass/issue-11958.rs b/src/test/run-pass/issue-11958.rs
index 13177880c5ab7..f557f662e8104 100644
--- a/src/test/run-pass/issue-11958.rs
+++ b/src/test/run-pass/issue-11958.rs
@@ -12,6 +12,7 @@
 
 // Pretty printing tests complain about `use std::predule::*`
 #![allow(unused_imports)]
+#![allow(unstable)]
 
 // We shouldn't need to rebind a moved upvar as mut if it's already
 // marked as mut
diff --git a/src/test/run-pass/issue-16671.rs b/src/test/run-pass/issue-16671.rs
index e25b3e8e89c6c..4c72e4fdb73ec 100644
--- a/src/test/run-pass/issue-16671.rs
+++ b/src/test/run-pass/issue-16671.rs
@@ -14,6 +14,7 @@
 
 // Pretty printing tests complain about `use std::predule::*`
 #![allow(unused_imports)]
+#![allow(unstable)]
 
 // A var moved into a proc, that has a mutable loan path should
 // not trigger a misleading unused_mut warning.