these 3 derivations will be built:
  /nix/store/k6pfd95js406vjhhvmxz38scim0x7gd6-treefmt.toml.drv
  /nix/store/lrvf46y5kri5lnshj7np635a5fik42x9-treefmt.drv
  /nix/store/pmpki8r7nlfvib57302n2p27z3bpf89q-treefmt-check.drv
these 6 paths will be fetched (18.2 MiB download, 57.9 MiB unpacked):
  /nix/store/80pgv5h5aqh2y2bjwps83gaad6khgpv3-json2x-0.1.0
  /nix/store/fwa2czdx8yralcj5zjg4i67gi95mciha-nixf-2.9.2
  /nix/store/7jzsx852xkpikm9sk24k9yc7x6c6midm-nixf-diagnose-0.1.4
  /nix/store/zsr9ldpb1xl8a230i2xsi5ghqnyz7wfc-prettier-3.9.6
  /nix/store/nks3zzm7vdrrj0nynz14ynahwfdwnm8j-ruff-0.16.7
  /nix/store/as2k66jk1l4bvyl3gdqaasaqvm52vx0x-rumdl-0.2.73
error: path '/nix/store/xzx6hk5jnrfc7k8q8wcpm35q63z5mbwi-treefmt-check' is not valid
error: Cannot build '/nix/store/pmpki8r7nlfvib57302n2p27z3bpf89q-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/xzx6hk5jnrfc7k8q8wcpm35q63z5mbwi-treefmt-check