this derivation will be built:
  /nix/store/25sdj43s08vygml1wppnp2a19y8rg4ag-treehouse-3.1.0.drv
these 2 paths will be fetched (0.0 KiB download, 12.5 MiB unpacked):
  /nix/store/bvcj650ql0sw2d5h128ff60mha90iaaf-source
  /nix/store/77cla0dl3i8wgl0px568f2dg4hvzq7sn-treehouse-3.1.0-go-modules
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy