these 2 derivations will be built:
  /nix/store/1bdwwmxblmvhyd6md7slmwh902pp9hha-iets-0.1.0.drv
  /nix/store/3c80l5880ks8yrks3a2y8p8313jpmpa6-iets-partest.drv
building '/nix/store/3c80l5880ks8yrks3a2y8p8313jpmpa6-iets-partest.drv'
iets-partest> note: no nix-instantiate on PATH; comparing worker counts only
iets-partest> ok   shared-graph (rc=0)
iets-partest> ok   deep-attrs (rc=0)
iets-partest> ok   cycle (rc=1)
iets-partest> ok   cycle-two-ranges (rc=1)
iets-partest> ok   cycle-deep (rc=1)
iets-partest> ok   error-elem (rc=1)
iets-partest> ok   try-eval (rc=0)
iets-partest> ok   trace-once (rc=0)
iets-partest> ok   warn-once (rc=0)
iets-partest> ok   import-shared (rc=0)
iets-partest> ok   drv (rc=0)
iets-partest> ok   json (rc=0)
iets-partest> ok   fn-identity (rc=0)
iets-partest> ok   print-code (rc=0)