$ docker-swift-run find /usr -name "*XCTest*" /usr/lib/swift_static/shims/XCTestOverlayShims.h /usr/lib/swift/shims/XCTestOverlayShims.h /usr/lib/swift/linux/libXCTest.so /usr/lib/swift/linux/x86_64/XCTest.swiftdoc /usr/lib/swift/linux/x86_64/XCTest.swiftmodule