Brian Anderson f14a0e2de4 Make a better error message for using #[feature] on stable rust ...

It now says '#[feature] may not be used on the stable release channel'.

I had to convert this error from a lint to a normal compiler error.

I left the lint previously-used for this in place since removing it is
a breaking change. It will just go unused until the end of time.

Fixes #24125

2015-06-18 17:38:38 -07:00

..

builtin.rs

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context.rs

Make a better error message for using #[feature] on stable rust

2015-06-18 17:38:38 -07:00

mod.rs

Make a better error message for using #[feature] on stable rust

2015-06-18 17:38:38 -07:00