The imports removed in 0.10.4 causes the inability to use no_std

[GZTimeWalker]

The deletions in the diff has destroyed support for no_std introduced in v0.10.3.

You can simply change Cargo.toml to reproduce this issue on your local:

[features]
- default = ["std"]
+ default = []

Then you'll find large number of errors caused by Vec / Sized etc.

Related issue: rust-lang/rust#121362 rust-lang/rust-clippy#12335 rust-lang/rust#121708

The rust community is still working on this lint issue, as a suggestion, @kirk-baird, may you fix the errors?

cc @Kerollmops

Getting the code to work is more important than clippy's advice.