nix channel update

2 jobs for v0.1.2.0 in 1 second (queued for 3 seconds)
latest
Status Job ID Name Coverage
  Lint
failed #20
hlint

00:00:01

 
  Build
skipped #21
build
 
Name Stage Failure
failed
hlint Lint
Executing "step_script" stage of the job script
$ export LC_ALL=C.UTF-8
$ nix-channel --add https://nixos.org/channels/nixpkgs-unstable nixpkgs
$ nix-channel --update
unpacking channels...
error: opening lock file '/nix/var/nix/profiles/per-user/gitlab-runner/channels.lock': Read-only file system
error: program '/nix/store/dfbn6f2h5agkn84isbfmp78gsa4l4vlj-nix-2.3.15/bin/nix-env' failed with exit code 1
Cleaning up file based variables
ERROR: Job failed: exit status 1