this derivation will be built:
  /nix/store/3pwkny71xvq620ic88amvs1pz60bd88q-treefmt-check.drv
building '/nix/store/3pwkny71xvq620ic88amvs1pz60bd88q-treefmt-check.drv'
treefmt-check> tribuchet: hub connection lost (hub closed event stream without a result); reconnecting
treefmt-check> tribuchet: building on jamie
treefmt-check> treefmt v2.5.0traversed 320 files
treefmt-check> emitted 251 files for processing
treefmt-check> formatted 251 files (0 changed) in 313ms

post-build step Upload coverage to codecov: ok
Skipping codecov: project=nix-community/harmonia attr=x86_64-linux.treefmt