From: bors <bors@rust-lang.org>
Date: Thu, 12 Oct 2017 08:52:44 +0000 (+0000)
Subject: Auto merge of #4314 - nodakai:phantom-type-in-projectbuilder, r=matklad
X-Git-Tag: archive/raspbian/0.35.0-2+rpi1~3^2^2^2^2^2^2^2~22^2~6^2~7
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=5763451096449580e18eadcc9f62278b665f4276;p=cargo.git

Auto merge of #4314 - nodakai:phantom-type-in-projectbuilder, r=matklad

cargotest/support: remove internal mutability in favor of switching types

`Cell<bool>` was removed from `ProjectBuilder`. Instead `PhantomData<T>` was added to it (and `RepoBuilder`) to manage state transition in the type level (`T` is either `Configuring` or `Done`.)
`ProjectBuilder::cargo_process()` was removed as its design heavily depended on the internal mutability.

Also added `#[must_use]` to `ProjectBuilder` and `RepoBuilder` to check for call sites of their `build()` method.
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5763451096449580e18eadcc9f62278b665f4276