build.gimp.org has failing tests for make check for some commits, but make distcheck for the same commit succeeds
See e.g. the make check log https://build.gimp.org/blue/organizations/jenkins/gimp/detail/master/142/pipeline/60
and compare to the full log of the distcheck step: https://build.gimp.org/blue/rest/organizations/jenkins/pipelines/gimp/branches/master/runs/142/nodes/69/steps/70/log/