Add rustc dependencies for containerised CI

[jacob-hughes]

rustgc is now CI'd on a minimal docker container on the soft-dev build server. We need to explicitly install the rustc dependencies for each build.

[jacob-hughes]

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[jacob-hughes]

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[jacob-hughes]

That's not quite right. It happened too fast

[ltratt]

You'll at least need to add something like:

WORKDIR /ci
COPY . .
CMD sh -x .buildbot.sh

[jacob-hughes]

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[jacob-hughes]

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[jacob-hughes]

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[jacob-hughes]

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[jacob-hughes]

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[jacob-hughes]

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[jacob-hughes]

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[vext01]

thread 'net::tcp::tests::clone_accept_smoke' panicked at 'received error for TcpListener::bind(&addr): Cannot assign requested address (os error 99)', library/std/src/net/tcp/tests.rs:581:17

Does the docker container need networking capabilities?

[ltratt]

I think it will at least need to be able to bind 127.0.0.1, which presumably it can't currently do?

[vext01]

I'm not sure.

@jacob-hughes Maybe a good place to start: https://docs.docker.com/network/

[vext01]

(After checking what address these tests want to bind to)

[jacob-hughes]

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[jacob-hughes]

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[jacob-hughes]

Looks like that did it! Let me know if you're happy for me to squash.

[ltratt]

Please squash.

[jacob-hughes]

Squashed

[ltratt]

bors r+

[bors]

Build succeeded:

• buildbot/buildbot-build-script