Prepare pre.0 prereleases

[baloo]

Prepare releases of:

• balloon-hash 0.5.0-pre.0
• bcrypt-pbkdf 0.11.0-pre.0
• password-auth 1.1.0-pre.0
• pbkdf2 0.13.0-pre.0
• scrypt 0.12.0-pre.0
• sha-crypt 0.6.0-pre.0
• argon2 0.6.0-pre.0

This brings:

• digest =0.11.0-pre.8
• sha1 =0.11.0-pre.3
• sha2 =0.11.0-pre.3
• hmac =0.13.0-pre.3
• blake2 =0.11.0-pre3

[tarcieri]

This needs updated too (it doctests the toplevel README.md): https://github.com/RustCrypto/password-hashes/blob/master/.readme/Cargo.toml

[baloo]

This needs updated too (it doctests the toplevel README.md): https://github.com/RustCrypto/password-hashes/blob/master/.readme/Cargo.toml

I think it would just require for a pre-release version of blake2 to be published https://crates.io/crates/blake2/versions

That would fix both failing tests here (and allow me to remove the [patch.crates-io] i added to test this)

[tarcieri]

Aah sure, we can do that

[baloo]

This pulls https://github.com/RustCrypto/hashes/pull/560

[baloo]

the release blake2 fixes the issues here. I went and set the versions as -pre.0 which suppose they get published immediately to crates.io. I could just put them back to -pre instead.

[tarcieri]

It’s fine to bump the versions for immediate publishing

[tarcieri]

I cut prereleases of all of the crates