this derivation will be built:
  /nix/store/4cfsqx28czhj8qnxfnp541nvlxf6pc31-treefmt-check.drv
building '/nix/store/4cfsqx28czhj8qnxfnp541nvlxf6pc31-treefmt-check.drv'
treefmt-check> traversed 551 files
treefmt-check> emitted 373 files for processing
treefmt-check> formatted 373 files (0 changed) in 4.291s

upload niks3: ok