Raise when chromium headless crashed, instead of silently return None

4 jobs for master in 8 minutes and 15 seconds (queued for 17 seconds)
latest
Status Job ID Name Coverage
  Download
failed #275572
dbnomics-fetcher
download

00:08:15

 
  Convert
skipped #275577
dbnomics-fetcher
convert
 
  Validate
skipped #275582
dbnomics-fetcher
validate
 
  Index
skipped #275585
dbnomics-indexer
index
 
Name Stage Failure
failed
download Download
real	0m30.930s
user 0m1.193s
sys 0m0.331s
+ kill 2680
Uploading artifacts for failed job
Uploading artifacts...
WARNING: /builds/dbnomics-fetchers/bcb-fetcher/job.env: no matching files
ERROR: No files to upload
ERROR: Job failed: command terminated with exit code 1