Pin matplotlib b/c of known bug w miss import

1 job for add-parcels-env in 13 minutes (queued for 2 seconds)
Status Job ID Name Coverage
  Test
failed #1487
test

00:13:00

 
Name Stage Failure
failed
test Test There is an unknown failure, please try again
LinkError: post-link script failed for package defaults::gcc-4.8.5-7
running your command again with `-v` will provide additional information
location of failed script: /opt/conda/envs/py2_parcels/bin/.gcc-post-link.sh
==> script messages <==
<None>



ERROR: Job failed: exit code 1