eval #76 evaluation failed

evaluation failed: nix-eval-jobs (packages.x86_64-linux) exited with status Some(1)
stderr:
error:
       … while updating the lock file of flake 'git+file:///var/lib/argunix/work/76?rev=ab1631bf05c9c901144bb3e0d512a3d357ad4fe2&shallow=1'

       … while updating the flake input 'flake-parts'

       … while updating the flake input 'flake-parts/nixpkgs-lib'

       error: cannot update unlocked flake input 'flake-parts/nixpkgs-lib' in pure mode
error: worker error: error:
              … while updating the lock file of flake 'git+file:///var/lib/argunix/work/76?rev=ab1631bf05c9c901144bb3e0d512a3d357ad4fe2&shallow=1'

              … while updating the flake input 'flake-parts'

              … while updating the flake input 'flake-parts/nixpkgs-lib'

              error: cannot update unlocked flake input 'flake-parts/nixpkgs-lib' in pure mode