set jobs sequentially

2 jobs for master in 44 seconds (queued for 1 second)
Name Stage Failure
failed
deployInstallPackages Deploy
   7b8a974..2432889  master     -> origin/master
Checking out 24328890 as master...

Skipping Git submodules setup
Downloading artifacts for createInstallPackages (3638)...
Downloading artifacts from coordinator... ok id=3638 responseStatus=200 OK token=CajCheJb
$ sh -c "cd deploy && ./deploy_install_packages.sh latest"
./deploy_install_packages.sh: line 2: syntax error: bad substitution
ERROR: Job failed: exit code 2