this derivation will be built:
  /nix/store/g40h8y8ffwsqll5443z8id4pb2lbsy9f-treefmt-check.drv
building '/nix/store/g40h8y8ffwsqll5443z8id4pb2lbsy9f-treefmt-check.drv' on 'ssh-ng://builder@build01.clan.lol'
building '/nix/store/g40h8y8ffwsqll5443z8id4pb2lbsy9f-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 420 files
treefmt-check> emitted 105 files for processing
treefmt-check> formatted 105 files (0 changed) in 531ms

upload niks3: ok