this derivation will be built:
  /nix/store/6p6lwimylg41fmab917r4iabj4zn2z1n-treefmt-check.drv
building '/nix/store/6p6lwimylg41fmab917r4iabj4zn2z1n-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 2021 files
treefmt-check> emitted 548 files for processing
treefmt-check> formatted 548 files (0 changed) in 3.436s

upload niks3: ok