CI: Using multiple stages/jobs

* .gitlab-ci.yml: here.
3 jobs for as/multiple-job-ci in 37 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build
failed #34391
check

00:00:31

failed #34392
distcheck

00:00:36

failed #34390
make

00:00:31

 
Name Stage Failure
failed
distcheck Build
Cloning repository...
Cloning into '/builds/tiger/nolimips'...
Checking out 4919f599 as as/multiple-job-ci...
Skipping Git submodules setup
$ ./bootstrap
./bootstrap: Bootstrapping Nolimips...
./bootstrap: Getting gnulib files...
./bootstrap: line 139: git: not found
ERROR: Job failed: exit code 1
failed
check Build
Cloning repository...
Cloning into '/builds/tiger/nolimips'...
Checking out 4919f599 as as/multiple-job-ci...
Skipping Git submodules setup
$ ./bootstrap
./bootstrap: Bootstrapping Nolimips...
./bootstrap: Getting gnulib files...
./bootstrap: line 139: git: not found
ERROR: Job failed: exit code 1
failed
make Build
Cloning repository...
Cloning into '/builds/tiger/nolimips'...
Checking out 4919f599 as as/multiple-job-ci...
Skipping Git submodules setup
$ ./bootstrap
./bootstrap: Bootstrapping Nolimips...
./bootstrap: Getting gnulib files...
./bootstrap: line 139: git: not found
ERROR: Job failed: exit code 1