don't know how to build these paths:
  /nix/store/mcjpg8ci5r0s2zq5p1bh98nsc0j8wnb7-iets-release-0.2.0.drv
warning: ignoring the client-specified setting 'store', because it is a restricted setting and you are not a trusted user
building '/nix/store/mcjpg8ci5r0s2zq5p1bh98nsc0j8wnb7-iets-release-0.2.0.drv' on farm.numtide.com:50051
iets-release-0.2.0> bld1: building mcjpg8ci5r0s2zq5p1bh98nsc0j8wnb7-iets-release-0.2.0.drv