| {{#option "`--message-format` _fmt_" }} |
| The output format for diagnostic messages. Can be specified multiple times |
| and consists of comma-separated values. Valid values: |
| |
| - `human` (default): Display in a human-readable text format. Conflicts with |
| `short` and `json`. |
| - `short`: Emit shorter, human-readable text messages. Conflicts with `human` |
| and `json`. |
| - `json`: Emit JSON messages to stdout. See |
| [the reference](../reference/external-tools.html#json-messages) |
| for more details. Conflicts with `human` and `short`. |
| - `json-diagnostic-short`: Ensure the `rendered` field of JSON messages contains |
| the "short" rendering from rustc. Cannot be used with `human` or `short`. |
| - `json-diagnostic-rendered-ansi`: Ensure the `rendered` field of JSON messages |
| contains embedded ANSI color codes for respecting rustc's default color |
| scheme. Cannot be used with `human` or `short`. |
| - `json-render-diagnostics`: Instruct Cargo to not include rustc diagnostics |
| in JSON messages printed, but instead Cargo itself should render the |
| JSON diagnostics coming from rustc. Cargo's own JSON diagnostics and others |
| coming from rustc are still emitted. Cannot be used with `human` or `short`. |
| {{/option}} |
