allow 20 minutes for travis build

Author: mattip

.travis.yml

@@ -91,7 +91,7 @@ script:
       fi
     - libc=${MB_ML_LIBC:-manylinux}
     - docker_image=quay.io/pypa/${libc}${MB_ML_VER}_${PLAT}
-    - docker run --rm -e INTERFACE64="${INTERFACE64}" -e MB_ML_LIBC="${MB_ML_LIBC}" -v $(pwd):/openblas "${docker_image}" /bin/bash -xe /openblas/tools/build_wheel.sh
+    - travis wait docker run --rm -e INTERFACE64="${INTERFACE64}" -e MB_ML_LIBC="${MB_ML_LIBC}" -v $(pwd):/openblas "${docker_image}" /bin/bash -xe /openblas/tools/build_wheel.sh
 
 after_success:
     - set +ex