add a test case to make sure binary artifact is deleted when download fails (#4251)
add a test case to make sure binary artifact is deleted when download fails (#4251)


abertelrud/swift-package-manager,apple/swift-package-manager,apple/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,abertelrud/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager