Re-add accidently overwritten changes from Ash

2 jobs for master in 4 seconds (queued for 6 seconds)
Status Job ID Name Coverage
  Test
failed #444
test

00:00:04

 
  Build
skipped #445
build
 
Name Stage Failure
failed
test Test
   bdc0d9c..242fb63  master     -> origin/master
Checking out 242fb632 as master...
Skipping Git submodules setup
Checking cache for default...
time="2020-03-27T17:50:02+08:00" level=error msg="Docker executor: prebuilt image helpers will be loaded from /var/lib/gitlab-runner."
Successfully extracted cache
$ rustc --version
bash: line 78: rustc: command not found
ERROR: Job failed: exit status 1