Fix Perl error in tests.api

Dependencies

• [2] WQ2VQ7H3 Use hydra-module.nix in the tests
• [3] KYSBJAYN Allow dashes in jobset input names
• [4] YI3BZG5N Cleanup Jobset serialization
• [5] MQYHIUEE Cleanup eval serialization
• [6] LZVO64YG Merge in the first bits of the API work
• [7] 4VYSDP4I Add eager fetching of relations and enable that for jobset->jobsetinputs
• [*] T4LLYESZ * Nix expression for building Hydra.

Change contents

• replacement in release.nix at line 200
  [2.1095]→[2.1095:1223](∅→∅)
  − ( "su hydra -c \"hydra-create-user root --email-address 'e.dolstra\@tudelft.nl' --password foobar --role admin\""
  [2.1095]

  [2.1223]
  + ( "su - hydra -c \"hydra-create-user root --email-address 'alice\@example.org' --password foobar --role admin\""
• replacement in release.nix at line 210
  [2.1530]→[2.1530:1708](∅→∅)
  − $machine->mustSucceed("su hydra -c 'NIX_STORE_DIR=/tmp/nix/store NIX_LOG_DIR=/tmp/nix/var/log/nix NIX_STATE_DIR=/tmp/nix/var/nix DBIC_TRACE=1 hydra-server -d' >&2 &");
  [2.1530]

  [3.1606]
  + $machine->mustSucceed("su - hydra -c 'NIX_STORE_DIR=/tmp/nix/store NIX_LOG_DIR=/tmp/nix/var/log/nix NIX_STATE_DIR=/tmp/nix/var/nix NIX_REMOTE= DBIC_TRACE=1 hydra-server -d' >&2 &");
• replacement in release.nix at line 214
  [2.1740]→[2.1740:1822](∅→∅)
  − $machine->mustSucceed("su hydra -c 'perl ${./tests/api-test.pl}' >&2");
  [2.1740]

  [3.1720]
  + $machine->mustSucceed("su - hydra -c 'perl ${./tests/api-test.pl}' >&2");
• replacement in tests/api-test.pl at line 52
  [3.245]→[2.2225:2360](∅→∅)
  − system("NIX_STORE_DIR=/tmp/nix/store NIX_LOG_DIR=/tmp/nix/var/log/nix NIX_STATE_DIR=/tmp/nix/var/nix hydra-evaluator sample default");
  [3.245]

  [3.38737]
  + system("NIX_STORE_DIR=/tmp/nix/store NIX_LOG_DIR=/tmp/nix/var/log/nix NIX_STATE_DIR=/tmp/nix/var/nix NIX_REMOTE= hydra-evaluator sample default");