Pin Travis to nightly-2019-09-10

Tests are broken on newer nightlies by rust-lang/rust#64477.
dtolnay · Sep 15, 2019 · 2d610bf · 2d610bf
1 parent c99f4ea
commit 2d610bf
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/.travis.yml b/.travis.yml
@@ -2,7 +2,7 @@ language: rust
 
 matrix:
   include:
-    - rust: nightly
+    - rust: nightly-2019-09-10
       script: cargo test
     - rust: stable
       script: cargo check