rust/RELEASES.md doesn't mention that 1.42 allows custom attributes on modules

[Emoun]

Pre-1.42, applying an attribute procedural macro to a module was disallowed with the following message:

error[E0658]: custom attributes cannot be applied to modules
...
 = note: for more information, see https://github.com/rust-lang/rust/issues/54727

As an example, see this build using rust 1.34 that exhibits this.

From rust 1.42 and onward this error does not occur, however, this is not detailed in the release notes.

[bsikar]

Does this still need to be done?

[Emoun]

I tried looking for update to the release notes that #78690 did but I cannot seem to find it on current master.
Was that PR not merged?