strings.HasSuffix(cfg.BuildO, "/") ||
			strings.HasSuffix(cfg.BuildO, string(os.PathSeparator)) {
			if !explicitO {
				base.Fatalf("go: build output %q already exists and is a directory", cfg.BuildO)
			}
			a := &Action{Mode: "go build"}
			for _, p := range pkgs {
				if p.Name != "main" {
					continue
				}

				p.Target = filepath.Join(cfg.BuildO, p.DefaultExecName())

        failure.assertThatCause(Matchers.containsText("Multiple build operations failed"));
    }

    // This is the current behavior:
    // We need to make sure that the build operation ids of nested builds started by a GradleBuild task do not overlap.

                    commits: ['abcdef']
                ]
            ],
            totalTime: [
                [
                    label: 'build1',
                    data: [[0, 1]]
                ],
                [
                    label: 'build2',
                    data: [[0, 2]]
                ]
            ]
        ]
    }

    def 'can calculate background color'() {

        def build1 = singleProjectBuild("build1") {
            buildFile << "task foo1"
        }
        def build2 = singleProjectBuild("build2") {
            buildFile << "task foo2"
        }

        when:
        def allProgress = new CopyOnWriteArrayList<String>()

        concurrent.start {
            def connector = toolingApi.connector(build1)

					}

					// Poison a.Target to catch uses later in the build.
					a.Target = "DO NOT USE - main build pseudo-cache Target"
					a.built = "DO NOT USE - main build pseudo-cache built"
					if a.json != nil {
						a.json.BuildID = a.buildID
					}
					return true
				}
				// Otherwise restore old build ID for main build.
				a.buildID = oldBuildID
			}
		}
	}

    }

    PerformanceTestHistory mockCrossBuildHistory() {
        BuildDisplayInfo info1 = buildDisplayInfo('build1')
        CrossBuildPerformanceResults result1  = crossBuildResults(startTime: 100)
        result1.buildResult(info1).addAll(measuredOperations([1]))

        BuildDisplayInfo info2 = buildDisplayInfo('build2')
        CrossBuildPerformanceResults result2  = crossBuildResults(startTime: 200)

    }

    def "includes build identifier in dependency report with #display"() {
        dependency "org.test:buildB:1.0"

        createDirs("buildB", "buildB/buildSrc", "buildB/buildSrc/b1", "buildB/buildSrc/b2")
        buildB.file("buildSrc/settings.gradle") << """
            $settings
            include 'b1', 'b2'
        """
        buildB.file("buildSrc/build.gradle") << """

        buildB.file("foo/.gitkeepdir").touch()
        buildB.file("bar/.gitkeepdir").touch()
        buildB.settingsFile << """
            rootProject.name = 'B'
            include 'foo', 'bar'
        """
        buildB.buildFile << """
            allprojects {
                apply plugin: 'java'
                group = 'org.test'
                version = '1.0'
            }
        """

  # command to reattempt build a few times in the case of failure (b/302558736)
  set +e
  for i in $(seq 1 5)
  do
    docker build \
    --build-arg REQUIREMENTS_FILE=jax.requirements.txt \
    --target=$target \
    --cache-from "$IMAGE" \
    -t "$IMAGE" -t "$AR_IMAGE" . && break
  done
  final=$?
  if [ $final -ne 0 ]; then
    exit $final
  fi
  set -e

            rootProject.name = 'buildB'
        """
        repo.file("build.gradle") << """
            apply plugin: 'java'
            group = 'org.test'
        """
        repo.commit("version 2")
        repo.createLightWeightTag("2.0")
    }

    @ToBeFixedForConfigurationCache
    def "source dependency builds are not visible to main build"() {
        given:
        buildFile << """