serde/test_suite/tests/ui/conflict/flatten-tuple-struct.stderr
2023-06-07 20:02:04 -07:00

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error: #[serde(flatten)] cannot be used on tuple structs
--> tests/ui/conflict/flatten-tuple-struct.rs:6:17
|
5 | #[derive(Serialize)]
| --------- in this derive macro expansion
6 | struct Foo(u32, #[serde(flatten)] HashMap<String, String>);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)