build: remove sccache from docker build process

.github/workflows/docker.yml

@@ -22,9 +22,6 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - name: Setup sccache
-        uses: mozilla-actions/sccache-action@v0.0.3
-
       - name: Set up QEMU
         uses: docker/setup-qemu-action@master
         with:
@@ -51,9 +48,6 @@ jobs:
           file: ./Dockerfile-${{ matrix.os }}
           build-args: |
             REVISION=${{ github.ref }}
-            SCCACHE_GHA_ENABLED=true
-            ACTIONS_CACHE_URL=${{ env.ACTIONS_CACHE_URL }}
-            ACTIONS_RUNTIME_TOKEN=${{ env.ACTIONS_RUNTIME_TOKEN }}
           platforms: ${{ env.build_platforms }}
           push: false
           cache-from: |

Dockerfile-alpine

@@ -11,7 +11,6 @@ RUN apk add --no-cache \
         libc6-compat \
         perl \
         unzip \
-        sccache \
         bash
 
 SHELL ["/bin/bash", "-c"]
@@ -29,13 +28,6 @@ RUN if [[ "$BUILDPLATFORM" == "linux/arm64" ]] ; then export PROTOC_ARCH=aarch_6
     rm /tmp/protoc.zip && \
     ln -s /opt/protoc/bin/protoc /usr/bin/
 
-# Set RUSTC_WRAPPER=/usr/bin/sccache to enable `sccache` caching.
-ARG RUSTC_WRAPPER=/usr/bin/sccache
-# These should be set for Github Actions caching
-ARG SCCACHE_GHA_ENABLED
-ARG ACTIONS_CACHE_URL
-ARG ACTIONS_RUNTIME_TOKEN
-
 # Create a dummy package
 RUN cargo init /usr/src/abci-app
 WORKDIR /usr/src/abci-app
@@ -54,15 +46,11 @@ ARG REVISION="refs/heads/master"
 # 2. We add `--config net.git-fetch-with-cli=true` to address ARM build issue,
 # see https://github.com/rust-lang/cargo/issues/10781#issuecomment-1441071052
 # 3. To preserve space on github cache, we call `cargo clean`.
-# 4. We set SCCACHE_SERVER_PORT to avoid conflicts during parallel builds
-RUN --mount=type=cache,sharing=shared,target=/root/.cache/sccache \
-    --mount=type=cache,sharing=shared,target=${CARGO_HOME}/registry/index \
+RUN --mount=type=cache,sharing=shared,target=${CARGO_HOME}/registry/index \
     --mount=type=cache,sharing=shared,target=${CARGO_HOME}/registry/cache \
     --mount=type=cache,sharing=shared,target=${CARGO_HOME}/git/db \
-    SCCACHE_SERVER_PORT=$((RANDOM+1025)) cargo add --config net.git-fetch-with-cli=true \
+    cargo add --config net.git-fetch-with-cli=true \
         --git https://github.com/dashpay/rs-tenderdash-abci --rev "${REVISION}" tenderdash-abci && \
     cargo build --config net.git-fetch-with-cli=true && \
     cargo run --config net.git-fetch-with-cli=true && \
-    cargo clean && \
-    sccache --show-stats
-
+    cargo clean

Dockerfile-debian

@@ -13,25 +13,6 @@ RUN --mount=type=cache,sharing=locked,target=/var/lib/apt/lists \
         wget \
         bash
 
-
-#
-# Install sccache - build cache for Rust.
-# This is optional, but it will speed up the build process 
-#
-ARG SCCACHE_URL="https://github.com/mozilla/sccache/releases/download/v0.4.0/sccache-v0.4.0-x86_64-unknown-linux-musl.tar.gz"
-RUN wget -q -O /tmp/sccache.tar.gz ${SCCACHE_URL} \
-    && mkdir -p /tmp/sccache \
-    && tar -z -C /tmp/sccache -xf /tmp/sccache.tar.gz \
-    && mv /tmp/sccache/sccache*/sccache /usr/bin/sccache \
-    && rm -r /tmp/sccache.tar.gz /tmp/sccache
-
-# Set RUSTC_WRAPPER=/usr/bin/sccache to enable `sccache` caching.
-ARG RUSTC_WRAPPER=/usr/bin/sccache
-# These should be set for Github Actions caching
-ARG SCCACHE_GHA_ENABLED
-ARG ACTIONS_CACHE_URL
-ARG ACTIONS_RUNTIME_TOKEN
-
 # Create a dummy package
 RUN cargo init /usr/src/abci-app
 WORKDIR /usr/src/abci-app
@@ -50,13 +31,10 @@ SHELL ["/bin/bash", "-c"]
 # 2. We add `--config net.git-fetch-with-cli=true` to address ARM build issue,
 # see https://github.com/rust-lang/cargo/issues/10781#issuecomment-1441071052
 # 3. To preserve space on github cache, we call `cargo clean`.
-# 4. We set SCCACHE_SERVER_PORT to avoid conflicts during parallel builds
-RUN --mount=type=cache,sharing=shared,target=/root/.cache/sccache \
-    --mount=type=cache,sharing=shared,target=${CARGO_HOME}/registry/index \
+RUN --mount=type=cache,sharing=shared,target=${CARGO_HOME}/registry/index \
     --mount=type=cache,sharing=shared,target=${CARGO_HOME}/registry/cache \
     --mount=type=cache,sharing=shared,target=${CARGO_HOME}/git/db \
-    SCCACHE_SERVER_PORT=$((RANDOM+1025)) cargo add --config net.git-fetch-with-cli=true \
+    cargo add --config net.git-fetch-with-cli=true \
         --git https://github.com/dashpay/rs-tenderdash-abci --rev "${REVISION}" tenderdash-abci && \
     cargo build --config net.git-fetch-with-cli=true && \
-    cargo clean && \
-    sccache --show-stats
+    cargo clean