prepare for API-triggered builds

1 job for master in 15 minutes and 1 second (queued for 24 minutes and 6 seconds)
Status Job ID Name Coverage
failed #34601


Name Stage Failure
failed Build
Makefile.coq:320: recipe for target 'all' failed
make[1]: *** [all] Error 2
Makefile:6: recipe for target 'all' failed
make: *** [all] Error 2

real 4m35.315s
user 22m19.468s
sys 0m37.884s
ERROR: Job failed: exit code 1