Build broken with newer cargo nightly

[bjorn3]

$ rm rust-toolchain
$ cargo build
warning: unused manifest key: target.heroku.version
    Updating git repository `https://github.com/solson/miri.git`
    Updating git repository `https://github.com/oli-obk/Rocket.git`
error: no matching package named `miri` found
location searched: https://github.com/solson/miri.git?branch=rustup#7269a884
did you mean: mse
required by package `priroda v0.1.0 (/home/bjorn/Documenten/priroda)`
$ rm Cargo.lock
$ cargo build
warning: unused manifest key: target.heroku.version
    Updating git repository `https://github.com/oli-obk/cgraph.git`
    Updating crates.io index
    Updating git repository `https://github.com/solson/miri.git`
    Updating git repository `https://github.com/oli-obk/Rocket.git`
error: no matching package named `miri` found
location searched: https://github.com/solson/miri.git?branch=rustup
did you mean: mse
required by package `priroda v0.1.0 (/home/bjorn/Documenten/priroda)`

[oli-obk]

we probably just need to point at the master branch of miri again

[bjorn3]

Yup that fixes it.

[oli-obk]

cool. Are you doing a rustup or any other large changes? Otherwise I'll do one

[bjorn3]

Rustup mostly, there are only a few changes necessary, so I will do them myself.