cargo-beta unpacks as cargo-nightly

[rillian]

The 1.15.0-beta.4 manifest links https://static.rust-lang.org/dist/2017-01-20/cargo-beta-x86_64-unknown-linux-gnu.tar.gz, hash 0a1064a5fc5fff404e1521241ce96643a2c5a581db870c99c7f30278504432b7 but that tarball unpacks into a directory named cargo-nightly-x86_64-unknown-linux-gnu.

This is confusing, and broke my script.

[rillian]

Possibly related to rust-lang/rust#38519?

[alexcrichton]

cc @brson, caused by rust-lang-deprecated/rust-buildbot#148

[rillian]

If the packaging system is renaming the tarballs, it should rewrite the relative paths inside to match. That changes the checksum, but I think least-surprise on the filename wins over comparing the artifact hashes.

Maybe cargo could have actual beta and stable build channels, like rust?

[alexcrichton]

@brson can speak more to renaming directories.

Cargo probably won't get this sort of build channel any time soon, so that's probably aways away.

[carols10cents]

Cargo does have these build channels now, so I'm closing this issue! Thanks!