diff --git a/rust-version b/rust-version
index 6b17a5dbeb..1377ee94df 100644
--- a/rust-version
+++ b/rust-version
@@ -1 +1 @@
-e4931eaaa3d95189b30e90d3af9f0db17c41bbb0
+c34472b77084c9f76f872871aeab121daf81fb99
diff --git a/test-cargo-miri/tests/test.rs b/test-cargo-miri/tests/test.rs
index cfbe3f6d7f..904bbbc6cd 100644
--- a/test-cargo-miri/tests/test.rs
+++ b/test-cargo-miri/tests/test.rs
@@ -39,5 +39,6 @@ fn entropy_rng() {
 
 #[test]
 fn num_cpus() {
+    #[cfg(not(windows))] // FIXME: enable on Windows again once https://github.com/seanmonstar/num_cpus/pull/90 gets released.
     assert_eq!(num_cpus::get(), 1);
 }
diff --git a/tests/compile-fail/validity/invalid_wide_raw.rs b/tests/compile-fail/validity/invalid_wide_raw.rs
index ec14f6988b..8f1e184ed2 100644
--- a/tests/compile-fail/validity/invalid_wide_raw.rs
+++ b/tests/compile-fail/validity/invalid_wide_raw.rs
@@ -1,3 +1,5 @@
+#![allow(invalid_value)]
+
 fn main() {
     trait T { }
     #[derive(Debug)]
diff --git a/tests/run-pass/iter.rs b/tests/run-pass/iter.rs
index 1bef21d83b..6192dd0d37 100644
--- a/tests/run-pass/iter.rs
+++ b/tests/run-pass/iter.rs
@@ -30,7 +30,7 @@ fn iter_any() {
     let h = |(), (), x: &u8| { 10u8 == *x };
     h((), (), &1u8);
 
-    [1, 2, 3u8].into_iter().any(|elt| 10 == *elt);
+    [1, 2, 3u8].iter().any(|elt| 10 == *elt);
 }
 
 fn main() {