these 3 derivations will be built:
  /nix/store/ks80aaa2igs4b693iyxhnlgw1mmds51n-treefmt.toml.drv
  /nix/store/p8wcb67q9cv5hfvrl5mds7qdjpg8pxmr-treefmt.drv
  /nix/store/1yp14adx6c2lqvzqqxbxydccpml5srf1-treefmt-check.drv
building '/nix/store/ks80aaa2igs4b693iyxhnlgw1mmds51n-treefmt.toml.drv' on 'ssh-ng://nix@superintendent'
building '/nix/store/ks80aaa2igs4b693iyxhnlgw1mmds51n-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
building '/nix/store/p8wcb67q9cv5hfvrl5mds7qdjpg8pxmr-treefmt.drv' on 'ssh-ng://nix@superintendent'
building '/nix/store/p8wcb67q9cv5hfvrl5mds7qdjpg8pxmr-treefmt.drv'
treefmt> structuredAttrs is enabled
building '/nix/store/1yp14adx6c2lqvzqqxbxydccpml5srf1-treefmt-check.drv' on 'ssh-ng://nix@superintendent'
building '/nix/store/1yp14adx6c2lqvzqqxbxydccpml5srf1-treefmt-check.drv'
treefmt-check> treefmt v2.6.0traversed 64 files
treefmt-check> emitted 54 files for processing
treefmt-check> formatted 54 files (0 changed) in 85ms

upload attic: ok
✍️ Overwriting server "r2d2"