better_scoped_tls 0.1.2

scoped-tls, but with good error message
Documentation

better_scoped_tls

This crate provides an opinionated version of scoped-tls.

Scoped thread local variables created by this crate will panic with a good message on usage without .set, like

You should perform this operation in the closure passed to `set` of better_scoped_tls::tests::TESTTLS

Syntax is exactly same to the original scoped-tls.