From: kennytm <kennytm@gmail.com>
Date: Wed, 7 Nov 2018 10:01:50 +0000 (+0800)
Subject: Rollup merge of #55495 - wesleywiser:opt_fuel_rustbuild, r=nikomatsakis
X-Git-Url: https://git.lizzy.rs/?a=commitdiff_plain;h=099c5878517add5fd932c808961a9612d3ec026a;p=rust.git

Rollup merge of #55495 - wesleywiser:opt_fuel_rustbuild, r=nikomatsakis

Don't print opt fuel messages to stdout because it breaks Rustbuild

Rustbuild passes `--message-format json` to the compiler invocations
which causes JSON to be emitted on stdout. Printing optimization fuel
messages to stdout breaks the json and causes Rustbuild to fail.

Work around this by emitting optimization fuel related messages on
stderr instead.
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099c5878517add5fd932c808961a9612d3ec026a