[rustc.git] / src / librustc_error_codes / error_codes / E0636.md

A `#![feature]` attribute was declared multiple times.

Erroneous code example:

```compile_fail,E0636
#![allow(stable_features)]
#![feature(rust1)]
#![feature(rust1)] // error: the feature `rust1` has already been declared
```
Commit	Line	Data
60c5eb7d XL	1	A `#![feature]` attribute was declared multiple times.
	2
	3	Erroneous code example:
	4
	5	```compile_fail,E0636
	6	#![allow(stable_features)]
	7	#![feature(rust1)]
	8	#![feature(rust1)] // error: the feature `rust1` has already been declared
	9	```