T.concat
  [
    "user error: Timespan has negative or null duration of 0s\n",
    "test/data/parser/err_001.clp:3:\n",
    "  | -- This has a duration of 0\n",
    "3 | 2025-10-02 22:59:05 ... 2025-10-02 22:59:05\n",
    "  |                         ^^^^^^^^^^^^^^^^^^^\n",
    "  | \n"]