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■First commit
Just remove the unnecessary semicolon.
■Second commit
The
into_iter()
return the reference currently but this function will stop returning reference because of upcoming breaking change following issue so it won't be able to use*
.Replacing with
iter()
, it keeps returning reference.rust-lang/rust#66145
■Third commit
We can use
?
operator instead oftry!
.The RFC about this is following.
https://rust-lang.github.io/rfcs/1859-try-trait.html#desugaring-and-the-try-trait
■Fourth commit
The alloc crate is stable since Version 1.36.0 (2019-07-04) release so we don't have to require the attribute.