diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index 29aab53..7cfcd7b 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -159,8 +159,6 @@ jobs:
       - name: Set up QEMU
         id: qemu
         uses: docker/setup-qemu-action@v3
-        with:
-          platforms: arm64,arm,riscv64,mips64le,ppc64le,s390x
 
       - name: Log in to Docker Hub
         if: ${{ env.DOCKER_RW }}
@@ -174,7 +172,16 @@ jobs:
 
       - name: Set environments
         run: |
-          PLATFORMS="`docker manifest inspect ${{ env.BASE_IMAGE }} | jq -r '.manifests[] | "\(.platform.os)/\(.platform.architecture)"' | sort -u | paste -sd ','`"
+          # mips64 seems to be broken at the moment...
+          if [ "${{ env.BASE_IMAGE }}" = "debian:sid-slim" ]
+          then
+            FILT="grep -v mips64le"
+          else
+            FILT="cat"
+          fi
+          PLATFORMS="`docker manifest inspect ${{ env.BASE_IMAGE }} | \
+           jq -r '.manifests[] | "\(.platform.os)/\(.platform.architecture)"' | \
+           sort -u | ${FILT} | paste -sd ','`"
           echo "PLATFORMS=${PLATFORMS}" >> $GITHUB_ENV
           GIT_BRANCH="${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}"
           GIT_BRANCH="${GIT_BRANCH#refs/tags/}"
diff --git a/docker/Dockerfile.build b/docker/Dockerfile.build
index 7f355ed..ca95b99 100644
--- a/docker/Dockerfile.build
+++ b/docker/Dockerfile.build
@@ -4,11 +4,12 @@ ARG BASE_IMAGE="debian:sid-slim"
 FROM ${BASE_IMAGE} AS build
 LABEL maintainer="Maksym Sobolyev <sobomax@sippysoft.com>"
 
-ARG BUILD_PKGS="cmake make gcc libc6-dev openssl"
+ARG BUILD_PKGS="cmake make clang libc6-dev openssl"
 ARG DEBIAN_FRONTEND=noninteractive
 RUN apt-get update && apt-get install -y --no-install-recommends ${BUILD_PKGS}
 WORKDIR /src
-RUN --mount=type=bind,target=.,rw cmake -B build && make -C build all test install
+RUN --mount=type=bind,target=.,rw cmake -B build && \
+ make -C build CTEST_OUTPUT_ON_FAILURE=1 all test install
 FROM ${BASE_IMAGE} AS clean
 COPY --from=build /usr/local/lib/libg722.* /usr/local/lib/
 COPY --from=build --exclude=g722_common.h --exclude=g722_private.h \