Publishing a new minor version

[petrochenkov]

Hi.
rust-lang/rust#42125 is going to turn some old compatibility "private-in-public" warnings in rustc into hard errors.
crates.io testing discovered that published version of this crate is affected by one of those errors.
The current master is building successfully with rust-lang/rust#42125, could you push it on crates.io as 0.0.12?

[petrochenkov]

0.0.12 was published, closing.