diff --git a/.github/workflows/CICD.yml b/.github/workflows/CICD.yml
index f7039d1..d7a443c 100644
--- a/.github/workflows/CICD.yml
+++ b/.github/workflows/CICD.yml
@@ -231,55 +231,56 @@ jobs:
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
-  coverage:
-    name: Code Coverage
-    runs-on: ${{ matrix.job.os }}
-    strategy:
-      fail-fast: true
-      matrix:
-        # job: [ { os: ubuntu-latest }, { os: macos-latest }, { os: windows-latest } ]
-        job: [ { os: ubuntu-latest } ] ## cargo-tarpaulin is currently only available on linux
-    steps:
-    - uses: actions/checkout@v1
-    # - name: Reattach HEAD ## may be needed for accurate code coverage info
-    #   run: git checkout ${{ github.head_ref }}
-    - name: Initialize workflow variables
-      id: vars
-      shell: bash
-      run: |
-        # staging directory
-        STAGING='_staging'
-        echo set-output name=STAGING::${STAGING}
-        echo ::set-output name=STAGING::${STAGING}
-        # check for CODECOV_TOKEN availability (work-around for inaccessible 'secrets' object for 'if'; see <https://github.community/t5/GitHub-Actions/jobs-lt-job-id-gt-if-does-not-work-with-env-secrets/m-p/38549>)
-        unset HAS_CODECOV_TOKEN
-        if [ -n $CODECOV_TOKEN ]; then HAS_CODECOV_TOKEN='true' ; fi
-        echo set-output name=HAS_CODECOV_TOKEN::${HAS_CODECOV_TOKEN}
-        echo ::set-output name=HAS_CODECOV_TOKEN::${HAS_CODECOV_TOKEN}
-      env:
-        CODECOV_TOKEN: "${{ secrets.CODECOV_TOKEN }}"
-    - name: Create all needed build/work directories
-      shell: bash
-      run: |
-        mkdir -p '${{ steps.vars.outputs.STAGING }}/work'
-    - name: Install required packages
-      run: |
-        sudo apt-get -y install libssl-dev
-        pushd '${{ steps.vars.outputs.STAGING }}/work' >/dev/null
-        wget --no-verbose https://github.com/xd009642/tarpaulin/releases/download/0.9.3/cargo-tarpaulin-0.9.3-travis.tar.gz
-        tar xf cargo-tarpaulin-0.9.3-travis.tar.gz
-        cp cargo-tarpaulin "$(dirname -- "$(which cargo)")"/
-        popd >/dev/null
-    - name: Generate coverage
-      run: |
-        cargo tarpaulin --out Xml
-    - name: Upload coverage results (CodeCov.io)
-      # CODECOV_TOKEN (aka, "Repository Upload Token" for REPO from CodeCov.io) ## set via REPO/Settings/Secrets
-      # if: secrets.CODECOV_TOKEN (not supported {yet?}; see <https://github.community/t5/GitHub-Actions/jobs-lt-job-id-gt-if-does-not-work-with-env-secrets/m-p/38549>)
-      if: steps.vars.outputs.HAS_CODECOV_TOKEN
-      run: |
-        # CodeCov.io
-        cargo tarpaulin --out Xml
-        bash <(curl -s https://codecov.io/bash)
-      env:
-        CODECOV_TOKEN: "${{ secrets.CODECOV_TOKEN }}"
+  ## fix! [rivy; 2020-22-01] `cargo tarpaulin` is unable to test this repo at the moment; alternate recipe or another testing framework?
+  # coverage:
+  #   name: Code Coverage
+  #   runs-on: ${{ matrix.job.os }}
+  #   strategy:
+  #     fail-fast: true
+  #     matrix:
+  #       # job: [ { os: ubuntu-latest }, { os: macos-latest }, { os: windows-latest } ]
+  #       job: [ { os: ubuntu-latest } ] ## cargo-tarpaulin is currently only available on linux
+  #   steps:
+  #   - uses: actions/checkout@v1
+  #   # - name: Reattach HEAD ## may be needed for accurate code coverage info
+  #   #   run: git checkout ${{ github.head_ref }}
+  #   - name: Initialize workflow variables
+  #     id: vars
+  #     shell: bash
+  #     run: |
+  #       # staging directory
+  #       STAGING='_staging'
+  #       echo set-output name=STAGING::${STAGING}
+  #       echo ::set-output name=STAGING::${STAGING}
+  #       # check for CODECOV_TOKEN availability (work-around for inaccessible 'secrets' object for 'if'; see <https://github.community/t5/GitHub-Actions/jobs-lt-job-id-gt-if-does-not-work-with-env-secrets/m-p/38549>)
+  #       unset HAS_CODECOV_TOKEN
+  #       if [ -n $CODECOV_TOKEN ]; then HAS_CODECOV_TOKEN='true' ; fi
+  #       echo set-output name=HAS_CODECOV_TOKEN::${HAS_CODECOV_TOKEN}
+  #       echo ::set-output name=HAS_CODECOV_TOKEN::${HAS_CODECOV_TOKEN}
+  #     env:
+  #       CODECOV_TOKEN: "${{ secrets.CODECOV_TOKEN }}"
+  #   - name: Create all needed build/work directories
+  #     shell: bash
+  #     run: |
+  #       mkdir -p '${{ steps.vars.outputs.STAGING }}/work'
+  #   - name: Install required packages
+  #     run: |
+  #       sudo apt-get -y install libssl-dev
+  #       pushd '${{ steps.vars.outputs.STAGING }}/work' >/dev/null
+  #       wget --no-verbose https://github.com/xd009642/tarpaulin/releases/download/0.9.3/cargo-tarpaulin-0.9.3-travis.tar.gz
+  #       tar xf cargo-tarpaulin-0.9.3-travis.tar.gz
+  #       cp cargo-tarpaulin "$(dirname -- "$(which cargo)")"/
+  #       popd >/dev/null
+  #   - name: Generate coverage
+  #     run: |
+  #       cargo tarpaulin --out Xml
+  #   - name: Upload coverage results (CodeCov.io)
+  #     # CODECOV_TOKEN (aka, "Repository Upload Token" for REPO from CodeCov.io) ## set via REPO/Settings/Secrets
+  #     # if: secrets.CODECOV_TOKEN (not supported {yet?}; see <https://github.community/t5/GitHub-Actions/jobs-lt-job-id-gt-if-does-not-work-with-env-secrets/m-p/38549>)
+  #     if: steps.vars.outputs.HAS_CODECOV_TOKEN
+  #     run: |
+  #       # CodeCov.io
+  #       cargo tarpaulin --out Xml
+  #       bash <(curl -s https://codecov.io/bash)
+  #     env:
+  #       CODECOV_TOKEN: "${{ secrets.CODECOV_TOKEN }}"