with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix"; { hello = mkDerivation rec { name = "hello-${version}"; version = "0.1"; buildCommand = "touch $out"; meta.description = "Empty file"; }; foo = mkDerivation rec { name = "foo-5"; buildCommand = '' mkdir -p $out echo ${name} > $out/${name} ''; }; bar = mkDerivation rec { name = "bar-3"; buildCommand = '' echo "Does not build successfully" exit 1 ''; meta.description = "broken bar"; }; }