Does anyone have any idea why I get an "Overlapping outputs" problem for a task that should not have it, but only on GitHub Actions? This is the run on GHA: https://ge.spockframework.org/s/vnf6tebn2ygd4/timeline?details=3yt6nuz2vwgza This is the local run: https://ge.spockframework.org/s/y6x7rzl55yags/timeline?details=3yt6nuz2vwgza Both on the same commit, both with the same task started. Locally the task can be cached perfectly fine, on GHA it complains about overlapping outputs. I even added this debug code:

allprojects { tasks.all {} }
tasks.register('foo') {
  doLast {
    allprojects*.tasks*.all { task ->
      outputs.files.files.findAll { it.absolutePath.contains('.github') }.each {
        println("FOO: ${task.name} | ${it.absolutePath}")
      }
    }
  }
}

And the result even for the GHA run is exactly as expected: https://ge.spockframework.org/s/vnf6tebn2ygd4/console-log?page=1#L100 No overlap with any output of any other task in the whole build.

That is strange. For my understanding, whats the task that creates

.github/workflows/release.yaml

?

Argh, you are right. 😞

Agreed, that overlapping hint is very misleading. I don't know any quick fixes for this 😞

The quick-fix is to have a separate task that deletes the output file on which the generation task depends. This finally makes it cacheable. As long as nothing between the deletion and the successful generation of the file fails, this should be fine 😄

Thanks for filing those bugs!