040000 tree 8ec66220b64ea88f961839fe1052a099b5a77055	assertions
040000 tree 3b6b0e6627e5b8492f5920ca783ef97de29b12b6	diagnostics.general
040000 tree 69fc6cdb9f927113f3f0bf5ed8b8f1f9a08f548f	errno
040000 tree 5d45237c56a23930b77592aae051fd253ebb7330	std.exceptions
040000 tree cf02600c2afa603eb7634f917df0a7594b29b3e8	syserr