ci(setup-soldr): silence noisy default-configuration annotations

.github/workflows/acceptance-205.yml

@@ -58,6 +58,15 @@ jobs:
           build-cache: true
           target-cache: true
           prebuild-deps: none
+          # Opt out of the implicit `SOLDR_LINKER=fast` injection so cargo /
+          # rust-toolchain.toml stays in charge. Silences the routine
+          # "defaulting SOLDR_LINKER=fast" warning (issue #400 /
+          # setup-soldr#377).
+          linker: platform-default
+          # Acceptance gates compile a full test binary; payload may exceed
+          # the 512 MiB action default (issue #400). Raise the soft warn
+          # threshold; hard cap stays at the action default (6 GiB).
+          cache-payload-warn-bytes: 2GiB
 
       - name: Run ${{ matrix.gate }} acceptance gate
         run: |

.github/workflows/bench-205.yml

@@ -42,6 +42,16 @@ jobs:
           build-cache: true
           target-cache: true
           prebuild-deps: none
+          # Opt out of the implicit `SOLDR_LINKER=fast` injection so cargo /
+          # rust-toolchain.toml stays in charge. Silences the routine
+          # "defaulting SOLDR_LINKER=fast" warning (issue #400 /
+          # setup-soldr#377).
+          linker: platform-default
+          # Bench builds compile release artifacts and their full
+          # dependency graph; payload may exceed the 512 MiB action
+          # default (issue #400). Raise the soft warn threshold; hard cap
+          # stays at the action default (6 GiB).
+          cache-payload-warn-bytes: 2GiB
 
       - name: "Run ${{ matrix.bench }} (target: ${{ matrix.target }})"
         run: |
@@ -72,6 +82,16 @@ jobs:
           build-cache: true
           target-cache: true
           prebuild-deps: none
+          # Opt out of the implicit `SOLDR_LINKER=fast` injection so cargo /
+          # rust-toolchain.toml stays in charge. Silences the routine
+          # "defaulting SOLDR_LINKER=fast" warning (issue #400 /
+          # setup-soldr#377).
+          linker: platform-default
+          # Bench builds compile release artifacts and their full
+          # dependency graph; payload may exceed the 512 MiB action
+          # default (issue #400). Raise the soft warn threshold; hard cap
+          # stays at the action default (6 GiB).
+          cache-payload-warn-bytes: 2GiB
 
       - name: Checkout FastLED
         uses: actions/checkout@v6

.github/workflows/check-macos.yml

@@ -25,6 +25,16 @@ jobs:
           build-cache: true
           target-cache: true
           prebuild-deps: none
+          # Opt out of the implicit `SOLDR_LINKER=fast` injection so cargo /
+          # rust-toolchain.toml stays in charge. Silences the routine
+          # "defaulting SOLDR_LINKER=fast" warning (issue #400 /
+          # setup-soldr#377).
+          linker: platform-default
+          # Realistic zccache payload for the workspace check job is
+          # ~1.5–2 GiB (issue #400). Raise the soft warn threshold above
+          # the steady-state size so the action only flags genuinely
+          # runaway caches. Hard cap stays at the action default (6 GiB).
+          cache-payload-warn-bytes: 2GiB
 
       - name: Check
         shell: bash

.github/workflows/check-ubuntu.yml

@@ -26,6 +26,16 @@ jobs:
           build-cache: true
           target-cache: true
           prebuild-deps: none
+          # Opt out of the implicit `SOLDR_LINKER=fast` injection so cargo /
+          # rust-toolchain.toml stays in charge. Silences the routine
+          # "defaulting SOLDR_LINKER=fast" warning (issue #400 /
+          # setup-soldr#377).
+          linker: platform-default
+          # Realistic zccache payload for the workspace check job is
+          # ~1.5–2 GiB (issue #400). Raise the soft warn threshold above
+          # the steady-state size so the action only flags genuinely
+          # runaway caches. Hard cap stays at the action default (6 GiB).
+          cache-payload-warn-bytes: 2GiB
 
       - name: Check
         run: soldr cargo check --workspace --all-targets

.github/workflows/check-windows.yml

@@ -25,6 +25,16 @@ jobs:
           build-cache: true
           target-cache: true
           prebuild-deps: none
+          # Opt out of the implicit `SOLDR_LINKER=fast` injection so cargo /
+          # rust-toolchain.toml stays in charge. Silences the routine
+          # "defaulting SOLDR_LINKER=fast" warning (issue #400 /
+          # setup-soldr#377).
+          linker: platform-default
+          # Realistic zccache payload for the workspace check job is
+          # ~1.5–2 GiB (issue #400). Raise the soft warn threshold above
+          # the steady-state size so the action only flags genuinely
+          # runaway caches. Hard cap stays at the action default (6 GiB).
+          cache-payload-warn-bytes: 2GiB
 
       - name: Check
         shell: bash

.github/workflows/docs.yml

@@ -25,6 +25,15 @@ jobs:
           build-cache: true
           target-cache: true
           prebuild-deps: none
+          # Opt out of the implicit `SOLDR_LINKER=fast` injection so cargo /
+          # rust-toolchain.toml stays in charge. Silences the routine
+          # "defaulting SOLDR_LINKER=fast" warning (issue #400 /
+          # setup-soldr#377).
+          linker: platform-default
+          # Realistic zccache payload for the doc build can exceed the
+          # 512 MiB action default (issue #400). Raise the soft warn
+          # threshold; hard cap stays at the action default (6 GiB).
+          cache-payload-warn-bytes: 2GiB
 
       - name: Build docs
         run: soldr cargo doc --workspace --no-deps

.github/workflows/dylint.yml

@@ -28,6 +28,16 @@ jobs:
           toolchain: 1.94.1
           cache-key-suffix: dylint
           prebuild-deps: none
+          # Opt out of the implicit `SOLDR_LINKER=fast` injection so cargo /
+          # rust-toolchain.toml stays in charge. Silences the routine
+          # "defaulting SOLDR_LINKER=fast" warning (issue #400 /
+          # setup-soldr#377).
+          linker: platform-default
+          # Dylint's build pulls in a full rustc-dev tree on first run
+          # which can push the build-cache past the 512 MiB action default
+          # (issue #400). Raise the soft warn threshold; hard cap stays
+          # at the action default (6 GiB).
+          cache-payload-warn-bytes: 2GiB
       - name: Install Dylint nightly toolchain
         # Pin matches `dylints/ban_raw_subprocess/rust-toolchain.toml`
         # and zccache's `ci/build_dylint_driver.py::TOOLCHAIN_CHANNEL`.

.github/workflows/fmt.yml

@@ -23,5 +23,11 @@ jobs:
           build-cache: true
           target-cache: false
           prebuild-deps: none
+          # Opt out of the implicit `SOLDR_LINKER=fast` injection so cargo /
+          # rust-toolchain.toml stays in charge. Silences the routine
+          # "defaulting SOLDR_LINKER=fast" warning (issue #400 /
+          # setup-soldr#377). `cargo fmt` does not link anything so this
+          # is purely cosmetic, but it removes the annotation.
+          linker: platform-default
       - name: Check formatting
         run: soldr cargo fmt --all -- --check

.github/workflows/msrv.yml

@@ -24,6 +24,15 @@ jobs:
           target-cache: true
           prebuild-deps: none
           toolchain: 1.94.1
+          # Opt out of the implicit `SOLDR_LINKER=fast` injection so cargo /
+          # rust-toolchain.toml stays in charge. Silences the routine
+          # "defaulting SOLDR_LINKER=fast" warning (issue #400 /
+          # setup-soldr#377).
+          linker: platform-default
+          # Realistic zccache payload for the workspace check job is
+          # ~1.5–2 GiB (issue #400). Raise the soft warn threshold above
+          # the steady-state size. Hard cap stays at 6 GiB.
+          cache-payload-warn-bytes: 2GiB
 
       - name: Check MSRV
         run: soldr cargo check --workspace

.github/workflows/template_build.yml

@@ -50,6 +50,21 @@ jobs:
           # SHARED key across all boards (was ~462MiB × board × SHA before
           # #280 made it coarse).
           prebuild-deps-flags: ""
+          # Override foundation's default `prebuild-deps: soldr-cook` — the
+          # cook recorded only misses (0 hits) in practice (issue #400 /
+          # setup-soldr#377), so skipping it removes a noisy warning and
+          # shaves ~20s off cold runs. The build-cache layer still warms
+          # the actual `soldr cargo build` step.
+          prebuild-deps: none
+          # Opt out of the implicit `SOLDR_LINKER=fast` injection so cargo /
+          # rust-toolchain.toml stays in charge of linker selection. Silences
+          # the routine "defaulting SOLDR_LINKER=fast" warning (issue #400 /
+          # setup-soldr#377).
+          linker: platform-default
+          # Raise the soft warn threshold above the realistic ~1.5–2 GiB
+          # zccache payload for this debug build (issue #400). Hard cap
+          # `cache-payload-max-bytes` still defaults to 6 GiB.
+          cache-payload-warn-bytes: 2GiB
           cache-key-suffix: fbuild-rust-debug
 
       - name: Reset zccache daemon after cache warm

.github/workflows/template_native_build.yml

@@ -67,6 +67,10 @@ jobs:
           # with "file in wrong format" on the cross crt1.o). Disable the
           # injection and let cargo + the toolchain decide.
           linker: platform-default
+          # Native release builds produce a payload larger than the
+          # 512 MiB action default (issue #400). Raise the soft warn
+          # threshold; hard cap stays at the action default (6 GiB).
+          cache-payload-warn-bytes: 2GiB
           cache-key-suffix: native-${{ inputs.target }}
 
       - uses: actions/setup-python@v6