these 3 derivations will be built:
  /nix/store/1bdwwmxblmvhyd6md7slmwh902pp9hha-iets-0.1.0.drv
  /nix/store/5v1ja4b6j2snxr4jhy47xgvxj6kd8ng2-iets-conformance-adapter.drv
  /nix/store/xy1fsfmd71x903wjv3b6zbyy04cg1iv3-nix-conformance-iets.drv
building '/nix/store/5v1ja4b6j2snxr4jhy47xgvxj6kd8ng2-iets-conformance-adapter.drv'
iets-conformance-adapter> structuredAttrs is enabled
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
building '/nix/store/xy1fsfmd71x903wjv3b6zbyy04cg1iv3-nix-conformance-iets.drv'