these 2 derivations will be built:
  /nix/store/i0905g305xbivhmbgxn8zk2r4jnqcil6-iets-0.1.0.drv
  /nix/store/28cisl7pn48fyi5sq3bd4qah0080bh2z-iets-partest.drv
error: timed out after 1200 seconds
error: Cannot build '/nix/store/28cisl7pn48fyi5sq3bd4qah0080bh2z-iets-partest.drv'.
       Reason: 1 dependency failed.
       Output paths:
         /nix/store/1l84dn0vwk5fywz5cgfzixmgmkvg64w4-iets-partest