It seems that when compiling the lib as a dependency of tests (that is, with cfg(test)not set), std is linked anyway and so the trait imports count as unused because they're shadowed by std inherent methods. This doesn't quite make sense and is worth further investigation, but allow(unused_imports) will suppress the warnings that I can't otherwise deal with.
It seems that when compiling the lib as a dependency of tests (that is, with
cfg(test)not set), std is linked anyway and so the trait imports count as unused because they're shadowed by std inherent methods. This doesn't quite make sense and is worth further investigation, butallow(unused_imports)will suppress the warnings that I can't otherwise deal with.