Actually use correct Iris version...

1 job for master in 19 minutes and 50 seconds (queued for 10 seconds)
Status Job ID Name Coverage
  Build
failed #75067
fp
build-iris.dev

00:19:50

 
Name Stage Failure
failed
build-iris.dev Build
Makefile.coq:342: recipe for target 'all' failed
make[1]: *** [all] Error 2
Makefile:6: recipe for target 'all' failed
make: *** [all] Error 2

real 3m26.494s
user 4m50.748s
sys 0m10.188s
ERROR: Job failed: exit code 1