nixpkgs/pkgs/development/tools/build-managers/drake/Gemfile.lock

GEM
  remote: https://rubygems.org/
  specs:
    comp_tree (1.1.3)
    drake (0.9.2.0.3.1)
      comp_tree (>= 1.1.3)

PLATFORMS
  ruby

DEPENDENCIES
  drake

BUNDLED WITH
   1.17.2
drake: init at 0.9.2.0.3.1 2017-01-24 10:36:22 -08:00			`GEM`
			`remote: https://rubygems.org/`
			`specs:`
			`comp_tree (1.1.3)`
			`drake (0.9.2.0.3.1)`
			`comp_tree (>= 1.1.3)`

			`PLATFORMS`
			`ruby`

			`DEPENDENCIES`
			`drake`

			`BUNDLED WITH`
drake: use bundlerApp 2019-04-30 07:22:26 -07:00			`1.17.2`