// on binaries that we are going to run and then delete.
	// There's no point in doing work on such a binary.
	// Worse, opening the binary for write here makes it
	// essentially impossible to safely fork+exec due to a fundamental
	// incompatibility between ETXTBSY and threads on modern Unix systems.
	// See golang.org/issue/22220.
	// We still call updateBuildID to update a.buildID, which is important