these 3 derivations will be built:
  /nix/store/yaxl98ivp4skvw8r184whsa539ln7is4-treefmt.toml.drv
  /nix/store/bzhafhk5rwh9chic9vivjv4pzhbgpmwv-examples.drv
  /nix/store/3rw933916qhpcfialf7775jk9chn6zrx-test-examples.drv
building '/nix/store/yaxl98ivp4skvw8r184whsa539ln7is4-treefmt.toml.drv'
treefmt.toml> structuredAttrs is enabled
building '/nix/store/bzhafhk5rwh9chic9vivjv4pzhbgpmwv-examples.drv'
building '/nix/store/3rw933916qhpcfialf7775jk9chn6zrx-test-examples.drv'

upload niks3: ok