Naive first build attempt

1 job for attempt-1 in 13 seconds (queued for 9 seconds)
Name Stage Failure
failed
bulletin Build
Skipping Git submodules setup
Executing "step_script" stage of the job script
Using docker image sha256:ec6da24a6fa517eba2d3d15d458936ce62d815cd3a8166da302e254d37039b76 for registry.ie.suberic.net/kevin/bulletin/gfortran with digest registry.ie.suberic.net/kevin/bulletin/gfortran@sha256:4c9dfc2a02976154ed95429d873056321f5c9457eba2e09f6356269013c88896 ...
$ make -C src
make: Entering directory '/builds/kevin/bulletin/src'
make: Leaving directory '/builds/kevin/bulletin/src'
makefile:7: *** missing separator (did you mean TAB instead of 8 spaces?). Stop.
Cleaning up file based variables
ERROR: Job failed: exit code 2