Error code E0789
This error code is internal to the compiler and will not be emitted with normal Rust code.
The internal rustc_allowed_through_unstable_modules
attribute must be used
on an item with a stable
attribute.
Erroneous code example:
ⓘ
Typically when an item is marked with a stable
attribute, the modules that
enclose the item must also be marked with stable
attributes, otherwise the
item becomes de facto unstable. #[rustc_allowed_through_unstable_modules]
is a workaround which allows an item to "escape" its unstable parent modules.
This error occurs when an item is marked with
#[rustc_allowed_through_unstable_modules]
but no supplementary stable
attribute exists. See #99288
for an example of #[rustc_allowed_through_unstable_modules]
in use.