[rustc.git] / src / librustc_error_codes / error_codes / E0554.md

Feature attributes are only allowed on the nightly release channel. Stable or
beta compilers will not comply.

Erroneous code example:

```ignore (depends on release channel)
#![feature(non_ascii_idents)] // error: `#![feature]` may not be used on the
                              //        stable release channel
```

If you need the feature, make sure to use a nightly release of the compiler
(but be warned that the feature may be removed or altered in the future).
Commit	Line	Data
60c5eb7d XL	1	Feature attributes are only allowed on the nightly release channel. Stable or
	2	beta compilers will not comply.
	3
f9f354fc	4	Erroneous code example:
60c5eb7d XL	5
	6	```ignore (depends on release channel)
	7	#![feature(non_ascii_idents)] // error: `#![feature]` may not be used on the
	8	// stable release channel
	9	```
	10
	11	If you need the feature, make sure to use a nightly release of the compiler
	12	(but be warned that the feature may be removed or altered in the future).