Use rustup default profile (#18727) (#18731)

(cherry picked from commit 2ec81f627d)

Co-authored-by: Tyera Eulberg <teulberg@gmail.com>

.travis.yml

@@ -38,6 +38,7 @@ jobs:
         - readlink -f .
       script:
         - source ci/env.sh
+        - rustup set profile default
         - ci/publish-tarball.sh
       deploy:
         - provider: s3