Rollup merge of #127102 - tmandry:rename-fuchsia-builder, r=Kobzol

Rename fuchsia builder and bump Fuchsia

This PR renames the fuchsia builder as requested in https://github.com/rust-lang/rustc-dev-guide/pull/1989#pullrequestreview-2148682346 and bumps Fuchsia.

This includes the quality-of-life improvements for developers in https://fxrev.dev/1061894. It also removes the wasm target, which should speed up the build a little.

The new name of the builder is `x86_64-fuchsia` because I think `x86_64-gnu-fuchsia` would be confusing and put too much emphasis on the host target. (In terms of triples, we are targeting `x86_64-unknown-fuchsia` from `x86_64-unknown-linux-gnu`.) Someone on the infra team should weigh in here.

After this lands, we should update the docs in the rustc-dev-guide again.

cc `@lqd`
r? t-infra

try-job: x86_64-fuchsia

src/ci/docker/host-x86_64/x86_64-fuchsia/Dockerfile

@@ -1,5 +1,6 @@
 # This job builds a toolchain capable of building Fuchsia, and then builds
-# Fuchsia. See the build-fuchsia.sh script in this directory for more details.
+# Fuchsia as an integration test of the toolchain. See the build-fuchsia.sh
+# script in this directory for more details.
 
 FROM ubuntu:22.04
 
@@ -24,7 +25,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
   && rm -rf /var/lib/apt/lists/*
 
 # Duplicated in dist-various-2 Dockerfile.
-# FIXME: Move to canonical triple
 ENV \
     AR_x86_64_unknown_fuchsia=x86_64-unknown-fuchsia-ar \
     CC_x86_64_unknown_fuchsia=x86_64-unknown-fuchsia-clang \
@@ -48,10 +48,6 @@ ENV CARGO_TARGET_X86_64_UNKNOWN_FUCHSIA_RUSTFLAGS \
 
 ENV TARGETS=x86_64-unknown-fuchsia
 ENV TARGETS=$TARGETS,x86_64-unknown-linux-gnu
-ENV TARGETS=$TARGETS,wasm32-unknown-unknown
-
-# Fuchsia clang does not have wasm target enabled, use system clang.
-ENV CC_wasm32_unknown_unknown=clang-15
 
 COPY scripts/sccache.sh /scripts/
 RUN sh /scripts/sccache.sh
@@ -76,4 +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-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=
 
@@ -35,7 +35,7 @@ PICK_REFS=()
 # commit hash of fuchsia.git and some other repos in the "monorepo" checkout, in
 # addition to versions of prebuilts. It should be bumped regularly by the
 # Fuchsia team – we aim for every 1-2 months.
-INTEGRATION_SHA=737ebdd83afa47b742ca8325fad0176952fcefbd
+INTEGRATION_SHA=d1d2f20efe46e22be179953dd6726c96eced54ab
 
 checkout=fuchsia
 jiri=.jiri_root/bin/jiri

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