VM test: start the web server

Dependencies

• [2] 5FP63F5T More command renaming.
• [3] IKC3UFA3 Fix VM test
• [4] 7C6HSXUQ * Start of a regression test for Hydra.
• [5] 3PNG7NIB Remove trailing whitespace
• [*] T4LLYESZ * Nix expression for building Hydra.

Change contents

• replacement in release.nix at line 123
  [3.848]→[2.51:179](∅→∅),[2.179]→[3.979:1027](∅→∅),[3.979]→[3.979:1027](∅→∅)
  − #$machine->mustSucceed("HYDRA_DATA=/var/lib/hydra HYDRA_DBI='dbi:Pg:dbname=hydra;user=hydra;' hydra-server >&2 &");

  − #$machine->waitForOpenPort("3000");
  [3.848]

  [3.1027]
  + $machine->mustSucceed("HYDRA_DATA=/var/lib/hydra HYDRA_DBI='dbi:Pg:dbname=hydra;user=hydra;' hydra-server >&2 &");

  + $machine->waitForOpenPort("3000");