Nice error message when building image fails #42
Description
This got me stumped for a while:
[Spec tests] docker build -t php-action:3d6545d /home/xen/dev/acdc/.github/actions/php-action
[Unit tests] docker run image=php-action:3d6545d entrypoint=["./vendor/bin/phpunit"] cmd=["--testsuite" "Unit"]
Error: Error: No such image: php-action:3d6545d
Until running act with -v told me that the build failed due to errors in the Dockerfile. Act v 0.1.0.