diff --git a/build-x86_64-linux.dockerfile b/build-x86_64-linux.dockerfile
index df71fc6edbe..ca9d1d90128 100644
--- a/build-x86_64-linux.dockerfile
+++ b/build-x86_64-linux.dockerfile
@@ -12,51 +12,61 @@ ENV \
     # https://stackoverflow.com/questions/44331836/apt-get-install-tzdata-noninteractive
     DEBIAN_FRONTEND=noninteractive
 
-RUN apt-get update -q && apt-get install -qy --no-install-recommends \
-    #
-    # Cloning the repository
-    git \
-    ca-certificates \
-    #
-    # Installing rustup
-    curl \
-    #
-    # Running mach
-    python2.7 \
-    python-virtualenv \
-    virtualenv \
-    #
-    # Multiple C/C++ dependencies built from source
-    g++ \
-    make \
-    cmake \
-    #
-    # ANGLE
-    xorg-dev \
-    #
-    # mozjs (SpiderMonkey)
-    autoconf2.13 \
-    #
-    # Bindgen (for SpiderMonkey bindings)
-    clang \
-    #
-    # gstreamer
-    libglib2.0-dev \
-    libgstreamer-plugins-base1.0-dev \
-    libgstreamer-plugins-bad1.0-dev \
-    libgstreamer1.0-dev \
-    #
-    # OpenSSL
-    libssl1.0-dev \
-    #
-    # blurz
-    libdbus-1-dev \
-    #
-    # Skia
-    libglu1-mesa-dev \
-    libbz2-dev \
-    #
-    #
+RUN \
+    apt-get update -q && \
+    apt-get install -qy --no-install-recommends \
+        #
+        # Cloning the repository
+        git \
+        ca-certificates \
+        #
+        # Installing rustup
+        curl \
+        #
+        # Running mach
+        python2.7 \
+        python-virtualenv \
+        virtualenv \
+        #
+        # Multiple C/C++ dependencies built from source
+        g++ \
+        make \
+        cmake \
+        #
+        # ANGLE
+        xorg-dev \
+        #
+        # mozjs (SpiderMonkey)
+        autoconf2.13 \
+        #
+        # Bindgen (for SpiderMonkey bindings)
+        clang \
+        #
+        # gstreamer
+        libglib2.0-dev \
+        libgstreamer-plugins-base1.0-dev \
+        libgstreamer-plugins-bad1.0-dev \
+        libgstreamer1.0-dev \
+        #
+        # OpenSSL
+        libssl1.0-dev \
+        #
+        # blurz
+        libdbus-1-dev \
+        #
+        # Skia
+        libglu1-mesa-dev \
+        libbz2-dev \
+        #
+        #
     && \
-    curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain none -y
+    #
+    #
+    curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain none -y && \
+    #
+    #
+    curl -sSfL \
+        https://github.com/mozilla/sccache/releases/download/0.2.7/sccache-0.2.7-x86_64-unknown-linux-musl.tar.gz \
+        | tar -xz --strip-components=1 -C /usr/local/bin/ \
+            sccache-0.2.7-x86_64-unknown-linux-musl/sccache
 
diff --git a/decision-task.py b/decision-task.py
index 061630c182d..1541d972859 100644
--- a/decision-task.py
+++ b/decision-task.py
@@ -46,6 +46,7 @@ def main():
     decision.create_task_with_in_tree_dockerfile(
         task_name="Linux x86_64: tidy + dev build + unit tests",
         command="""
+            sccache --version
             ./mach test-tidy --no-progress --all
             #./mach build --dev
             #./mach test-unit