diff --git a/src/test/compile-fail/fail-no-dead-code-core.rs b/src/test/compile-fail/fail-no-dead-code-core.rs
index 6f75181c31c..ee86c6ca1f0 100644
--- a/src/test/compile-fail/fail-no-dead-code-core.rs
+++ b/src/test/compile-fail/fail-no-dead-code-core.rs
@@ -10,6 +10,7 @@
 
 #![deny(dead_code)]
 #![allow(unreachable_code)]
+#![allow(unstable)]
 
 #[macro_use] extern crate core;
 
diff --git a/src/test/compile-fail/issue-17999.rs b/src/test/compile-fail/issue-17999.rs
index 5726960f66a..eaefe55e066 100644
--- a/src/test/compile-fail/issue-17999.rs
+++ b/src/test/compile-fail/issue-17999.rs
@@ -9,6 +9,7 @@
 // except according to those terms.
 
 #![deny(unused_variables)]
+#![allow(unstable)]
 
 fn main() {
     for _ in range(1is, 101) {
diff --git a/src/test/compile-fail/lint-ctypes.rs b/src/test/compile-fail/lint-ctypes.rs
index 801f9dfd1cf..5706453a220 100644
--- a/src/test/compile-fail/lint-ctypes.rs
+++ b/src/test/compile-fail/lint-ctypes.rs
@@ -9,6 +9,7 @@
 // except according to those terms.
 
 #![deny(improper_ctypes)]
+#![allow(unstable)]
 
 extern crate libc;
 
diff --git a/src/test/compile-fail/lint-dead-code-1.rs b/src/test/compile-fail/lint-dead-code-1.rs
index 34c79be7118..ceba33360d9 100644
--- a/src/test/compile-fail/lint-dead-code-1.rs
+++ b/src/test/compile-fail/lint-dead-code-1.rs
@@ -13,6 +13,7 @@
 #![allow(non_camel_case_types)]
 #![allow(non_upper_case_globals)]
 #![allow(missing_copy_implementations)]
+#![allow(unstable)]
 #![deny(dead_code)]
 
 #![crate_type="lib"]
diff --git a/src/test/compile-fail/lint-dead-code-3.rs b/src/test/compile-fail/lint-dead-code-3.rs
index 03b89c522ce..89ab78968d0 100644
--- a/src/test/compile-fail/lint-dead-code-3.rs
+++ b/src/test/compile-fail/lint-dead-code-3.rs
@@ -10,6 +10,7 @@
 
 #![allow(unused_variables)]
 #![allow(non_camel_case_types)]
+#![allow(unstable)]
 #![deny(dead_code)]
 
 #![crate_type="lib"]
diff --git a/src/test/compile-fail/lint-dead-code-4.rs b/src/test/compile-fail/lint-dead-code-4.rs
index ac8f158f8fb..3221be220d9 100644
--- a/src/test/compile-fail/lint-dead-code-4.rs
+++ b/src/test/compile-fail/lint-dead-code-4.rs
@@ -10,6 +10,7 @@
 
 #![allow(unused_variables)]
 #![allow(non_camel_case_types)]
+#![allow(unstable)]
 #![deny(dead_code)]
 
 extern crate libc;
diff --git a/src/test/compile-fail/lint-exceeding-bitshifts.rs b/src/test/compile-fail/lint-exceeding-bitshifts.rs
index 91a4d0fea0a..4c880eda099 100644
--- a/src/test/compile-fail/lint-exceeding-bitshifts.rs
+++ b/src/test/compile-fail/lint-exceeding-bitshifts.rs
@@ -10,6 +10,7 @@
 
 #![deny(exceeding_bitshifts)]
 #![allow(unused_variables)]
+#![allow(unstable)]
 #![allow(dead_code)]
 
 fn main() {
diff --git a/src/test/compile-fail/lint-unused-extern-crate.rs b/src/test/compile-fail/lint-unused-extern-crate.rs
index c9d34d40479..ae156356b79 100644
--- a/src/test/compile-fail/lint-unused-extern-crate.rs
+++ b/src/test/compile-fail/lint-unused-extern-crate.rs
@@ -12,6 +12,7 @@
 
 #![deny(unused_extern_crates)]
 #![allow(unused_variables)]
+#![allow(unstable)]
 
 extern crate libc; //~ ERROR: unused extern crate
 
diff --git a/src/test/compile-fail/lint-uppercase-variables.rs b/src/test/compile-fail/lint-uppercase-variables.rs
index 9317e465a7a..d9f899ede04 100644
--- a/src/test/compile-fail/lint-uppercase-variables.rs
+++ b/src/test/compile-fail/lint-uppercase-variables.rs
@@ -11,6 +11,7 @@
 // ignore-tidy-linelength
 
 #![allow(dead_code)]
+#![allow(unstable)]
 #![deny(non_snake_case)]
 
 use std::io::File;
diff --git a/src/test/compile-fail/liveness-unused.rs b/src/test/compile-fail/liveness-unused.rs
index c9f8230b6c5..f27ee376f52 100644
--- a/src/test/compile-fail/liveness-unused.rs
+++ b/src/test/compile-fail/liveness-unused.rs
@@ -10,6 +10,7 @@
 
 #![deny(unused_variables)]
 #![deny(unused_assignments)]
+#![allow(unstable)]
 #![allow(dead_code, non_camel_case_types)]
 
 fn f1(x: isize) {
diff --git a/src/test/compile-fail/unused-attr.rs b/src/test/compile-fail/unused-attr.rs
index 635ceec73a3..b04f2edd142 100644
--- a/src/test/compile-fail/unused-attr.rs
+++ b/src/test/compile-fail/unused-attr.rs
@@ -9,6 +9,7 @@
 // except according to those terms.
 #![deny(unused_attributes)]
 #![allow(dead_code, unused_imports)]
+#![allow(unstable)]
 
 #![foo] //~ ERROR unused attribute