Bump Nix

Dependencies

• [2] 7DEMMXE5 Bump Nix
• [3] 6K5PBUUN Use buildEnv to combine Hydra's Perl dependencies
• [4] PKTKSVTL Bump Nix
• [5] 34UH6B6L Build against the bleeding edge of Nix
• [6] 4YCF3KBG Concurrent hydra-evaluator
• [*] T4LLYESZ * Nix expression for building Hydra.
• [*] 5AIYUMTB Basic remote building
• [*] N4IROACV Move buildRemote() into State

Change contents

• replacement in release.nix at line 61
  [3.565]→[2.0:135](∅→∅)
  − rev = "fdbbcc44924cb4d9028fa68b2f7d423fb5d8670f";

  − sha256 = "0g420z3n0yspks0zy5ky529gbwriyrp702glslwq27ndl38aiiza";
  [3.565]

  [3.700]
  + rev = "d2c58ba60572e4248bd52f82fac57d6e0c79773d";

  + sha256 = "195f23xcndzrzg3n4wk0884qa6k4gm9mq1pkhzd7rn30vkn564dc";
• edit in src/hydra-queue-runner/build-remote.cc at line 122
  [9.2927]

  [10.302]
  + assert(BuildResult::TimedOut == 8);

  +