Use a sub-shell

gnzlbg · gnzlbg · commit b1a4e64e03b9 · 2019-05-25T11:38:33.000+02:00
diff --git a/.travis.yml b/.travis.yml
@@ -3,7 +3,7 @@ sudo: false
 rust: nightly
 
 install: cargo install mdbook
-script: cd reference && mdbook build && mdbook test
+script: bash -c "cd reference && mdbook build && mdbook test"
 env:
   RUSTINFRA_DEPLOY_DIR: reference/book
 import:
