io: Enable features in internals crate#4890
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In `io` we use a macro from `internals` that has feature gated code dependent on "alloc" but currently we are not enabling "alloc". This is a bug - Repeat after me: calling macros across crate boundries is an incessant source of bugs.
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In
iowe use a macro frominternalsthat has feature gated code dependent on "alloc" but currently we are not enabling "alloc". This is a bug -Repeat after me: calling macros across crate boundries is an incessant source of bugs.