Update rust toolchain in docker image

[daschl]

Hi,

I've been trying to fuzz a library which has a dependency on a git repository with workspaces. This is not supported with 1.11 that is currently used in the image. It fails with:

  no `package` or `project` section found.

I think this has been fixed in later cargo versions (rust-lang/cargo#2938), would it be possible to upgrade the docker image with a newer rust toolchain?

Thanks!

[daschl]

Note that I think I could work around it by manually updating it to curl -sSf https://static.rust-lang.org/rustup.sh | sh -s -- --channel=nightly --disable-sudo.

[frewsxcv]

just rewrote afl.rs, it's no longer docker based. see this URLO post for more info.