these 2 derivations will be built:
  /nix/store/x93q3a0iypchamyqvr194idf1h90wshp-closure-info.drv
  /nix/store/pdxja61m1575vnc4sy5vprxldjhjxdlz-check-vars.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy