E0433 and E0412 for type Vec in 0.10.4

[mkwan-amzn]

Hi!

I recently started consuming 0.10.4 and I'm seeing a lot of E0433 and E0412 errors in relation to the Vec type when attempting to compile.

Example error output:

error[E0433]: failed to resolve: use of undeclared type `Vec`
   --> <removed_path>
    |
197 |     let mut bitmaps = Vec::new();
    |                       ^^^ use of undeclared type `Vec`
    |
help: consider importing this struct
    |
1   + use alloc::vec::Vec;

Anyone else experiencing this issue?