these 2 derivations will be built:
  /nix/store/wbzlqvdqyprkcp1r9mvlmqn549cdgffn-zcode-3.15.3.drv
  /nix/store/ssyks6096aiqzc3kzcbclxxndm75wfs7-check-zcode.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy