GITHUB_WORKSPACE not mounted in Actions Docker container

I’m trying to develop my first GitHub Action that uploads code coverage for Node.js projects to Code Climate.

I have a draft version at, and have it set up as an action on another project at

Now when I run the action (see one such run at, the GITHUB_WORKSPACE doesn’t seem to be mounted like the documentation says. You can see that /github doesn’t exist, and env doesn’t seem to print any GITHUB_* variables either.

What am I doing wrong?

Closed as duplicate of