daym
commented
2 years ago If feature serde-hex is disabled, the macro make_serde_hex is unused and thus there's no usage site of fmt::Formatter in the resulting source after macro expansion.
However, the use std::fmt is only feature gated on std, not on serde-hex.
Instead of complicating the feature gate on the use statement I opted to just fully qualify the std::fmt::Formatter at the usage site.
This fixes an annoying "unused import" warning.