Cache not saving despite successful dependency step

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Describe the bug When a workflow runs, I do not see a stored cache, even if the workflow is successful. In the logs, I see:

Cache not found for input keys: Windows Server 2022 x64 (build 20348)-R version 4.4.1 (2024-06-14 ucrt)-1-0aab29eb803e797a0ac7c390c4d654267026b8bed8c76d5d72559ffed7c1e929, Windows Server 2022 x64 (build 20348)-R version 4.4.1 (2024-06-14 ucrt)-1-

Note: I see this for macos and ubuntu, too

To Reproduce You MUST include a link to the full logs of the failed build. Bug reports which do not contain a link, or only contain a screenshot of the failed build will be closed.

Link to logs

Workflow:

on:
  pull_request:
    branches: [main]
    paths:
      - '.github/workflows/test_package.yml'
      - 'tests/testthat/*'
      - 'R/*'

name: R-CMD-check

permissions: read-all

jobs:
  R-CMD-check:
    runs-on: ${{ matrix.config.os }}

    name: ${{ matrix.config.os }} (${{ matrix.config.r }})

    strategy:
      fail-fast: false
      matrix:
        config:
          - {os: macos-latest,   r: 'release'}
          - {os: windows-latest, r: 'release'}
          - {os: ubuntu-latest,   r: 'release'}

    env:
      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
      R_KEEP_PKG_SOURCE: yes

    steps:
      - uses: actions/checkout@v4

      - uses: r-lib/actions/setup-r@v2
        with:
          r-version: ${{ matrix.config.r }}
          http-user-agent: ${{ matrix.config.http-user-agent }}
          use-public-rspm: true

      - uses: r-lib/actions/setup-r-dependencies@v2
        with:
          extra-packages: any::rcmdcheck
          needs: check

      - uses: r-lib/actions/check-r-package@v2
        with:
          upload-snapshots: true
          build_args: 'c("--no-manual","--compact-vignettes=gs+qpdf")'

Expected behavior Dependencies are cached

Additional context Here is the specific message that setup-r-dependencies emits in the logs re: cache v4:

with:
    path: D:\a\_temp\Library/*
  renv/library
  !D:\a\_temp\Library/pak
  !D:\a\_temp\Library/_cache

    key: Windows Server 2022 x64 (build 20348)-R version 4.4.1 (2024-06-14 ucrt)-1-0aab29eb803e797a0ac7c390c4d654267026b8bed8c76d5d72559ffed7c1e929
    restore-keys: Windows Server 2022 x64 (build 20348)-R version 4.4.1 (2024-06-14 ucrt)-1-
    save-always: false
    enableCrossOsArchive: false
    fail-on-cache-miss: false
    lookup-only: false
  env:
    GITHUB_PAT: ***
    R_KEEP_PKG_SOURCE: yes
    _R_INSTALL_TIME_PATCHES_: no
    R_LIBS_USER: D:\a\_temp\Library
    TZ: UTC
    _R_CHECK_SYSTEM_CLOCK_: FALSE
    NOT_CRAN: true
    RSPM: https://packagemanager.posit.co/cran/latest
    RENV_CONFIG_REPOS_OVERRIDE: https://packagemanager.posit.co/cran/latest
    R_LIB_FOR_PAK: C:/R/site-library

r-lib / actions

Cache not saving despite successful dependency step #914