Yank breaking versions with "*" deps

[kornelski]

An old version of conduit has dependencies specified with "*" version requirement (semver = "*").

Crates with such vague dependency versions became unusable, because * allows picking too-new semver-incompatible dependencies.
It also breaks Cargo's minimal-versions feature, because * requirement allows picking very very old dependencies that aren't compatible with Rust 1.0.

Because this old version of conduit is unusable and may cause problems for Cargo, I suggest yanking it:

cargo yank --vers 0.5.0

[jtgeibel]

Seems reasonable to me. Yanked.