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mention stable-in-unstable issue

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Ralf Jung 2019-08-25 10:22:14 +02:00 committed by Who? Me?!
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7
src/stability.md
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@ -16,6 +16,13 @@ You can make specific sub-items stable by using the `#[stable]` attribute on the
The stability scheme works similarly to how `pub` works. You can have public functions of
nonpublic modules and you can have stable functions in unstable modules or vice versa.
Note, however, that due to a [rustc bug], stable items inside unstable modules
*are* available to stable code in that location! So, for example, stable code
can import `core::intrinsics::transmute` even though `intrinsics` is an unstable
module. Thus, this kind of nesting should be avoided when possible.
[rustc bug]: https://github.com/rust-lang/rust/issues/15702
# stable
The `#[stable(feature = "foo", "since = "1.420.69")]` attribute explicitly marks an item as