Rename x86_64-gnu-integration builder to x86_64-fuchsia

This better reflects what the builder actually does.

src/ci/docker/host-x86_64/x86_64-gnu-integration/Dockerfile → src/ci/docker/host-x86_64/x86_64-fuchsia/Dockerfile

@@ -72,4 +72,4 @@ ENV RUST_CONFIGURE_ARGS \
  --set target.x86_64-unknown-fuchsia.linker=/usr/local/bin/ld.lld
 ENV SCRIPT \
  python3 ../x.py install --target $TARGETS compiler/rustc library/std clippy && \
- bash ../src/ci/docker/host-x86_64/x86_64-gnu-integration/build-fuchsia.sh
+ bash ../src/ci/docker/host-x86_64/x86_64-fuchsia/build-fuchsia.sh

src/ci/docker/host-x86_64/x86_64-gnu-integration/build-fuchsia.sh → src/ci/docker/host-x86_64/x86_64-fuchsia/build-fuchsia.sh

@@ -5,14 +5,14 @@
 #
 # You may run this script locally using Docker with the following command:
 #
-# $ src/ci/docker/run.sh x86_64-gnu-integration
+# $ src/ci/docker/run.sh x86_64-fuchsia
 #
 # Alternatively, from within the container with --dev, assuming you have made it
 # as far as building the toolchain with the above command:
 #
-# $ src/ci/docker/run.sh --dev x86_64-gnu-integration
+# $ src/ci/docker/run.sh --dev x86_64-fuchsia
 # docker# git config --global --add safe.directory /checkout/obj/fuchsia
-# docker# ../src/ci/docker/host-x86_64/x86_64-gnu-integration/build-fuchsia.sh
+# docker# ../src/ci/docker/host-x86_64/x86_64-fuchsia/build-fuchsia.sh
 #
 # Also see the docs in the rustc-dev-guide for more info:
 # https://github.com/rust-lang/rustc-dev-guide/pull/1989
@@ -21,7 +21,7 @@ set -euf -o pipefail
 
 # Set this variable to 1 to disable updating the Fuchsia checkout. This is
 # useful for making local changes. You can find the Fuchsia checkout in
-# `obj/x86_64-gnu-integration/fuchsia` in your local checkout after running this
+# `obj/x86_64-fuchsia/fuchsia` in your local checkout after running this
 # job for the first time.
 KEEP_CHECKOUT=
 

src/ci/github-actions/jobs.yml

@@ -208,6 +208,13 @@ auto:
  - image: test-various
  <<: *job-linux-4c
 
+ - image: x86_64-fuchsia
+ # Only run this job on the nightly channel. Fuchsia requires
+ # nightly features to compile, and this job would fail if
+ # executed on beta and stable.
+ only_on_channel: nightly
+ <<: *job-linux-8c
+
  - image: x86_64-gnu
  <<: *job-linux-4c
 
@@ -229,13 +236,6 @@ auto:
  - image: x86_64-gnu-aux
  <<: *job-linux-4c
 
- - image: x86_64-gnu-integration
- # Only run this job on the nightly channel. Fuchsia requires
- # nightly features to compile, and this job would fail if
- # executed on beta and stable.
- only_on_channel: nightly
- <<: *job-linux-8c
-
  - image: x86_64-gnu-debug
  <<: *job-linux-4c