diff --git a/bin/steps/collectstatic b/bin/steps/collectstatic
index 989490b..fbd9b88 100755
--- a/bin/steps/collectstatic
+++ b/bin/steps/collectstatic
@@ -39,6 +39,8 @@ if [ ! "$DISABLE_COLLECTSTATIC" ] && [ -f "$MANAGE_FILE" ] && [ "$DJANGO_INSTALL
     # Display a warning if collectstatic failed.
     [ "$COLLECTSTATIC_STATUS" -ne 0 ] && {
 
+        mcount "failure.collectstatic"
+
         echo
         echo " !     Error while running '$ python $MANAGE_FILE collectstatic --noinput'."
         echo "       See traceback above for details."
diff --git a/bin/steps/pip-install b/bin/steps/pip-install
index 4cae628..9818928 100755
--- a/bin/steps/pip-install
+++ b/bin/steps/pip-install
@@ -15,10 +15,19 @@ if [ ! "$SKIP_PIP_INSTALL" ]; then
     fi
 
     set +e
-    
+
     # Measure that we're using pip.
     mcount "tool.pip"
 
+    # Count expected build failures.
+    if grep -q 'wsgiref' requirements.txt; then
+        mcount "failure.wsgiref"
+    fi
+    if grep -q '==0.0.0' requirements.txt; then
+        mcount "failure.none-version"
+    fi
+
+
     /app/.heroku/python/bin/pip install -r "$BUILD_DIR/requirements.txt" --exists-action=w --src=/app/.heroku/src --disable-pip-version-check --no-cache-dir 2>&1 | tee "$WARNINGS_LOG" | cleanup | indent
     PIP_STATUS="${PIPESTATUS[0]}"
     set -e
@@ -35,8 +44,8 @@ if [ ! "$SKIP_PIP_INSTALL" ]; then
     /app/.heroku/python/bin/pip freeze --disable-pip-version-check > .heroku/python/requirements-installed.txt
 
     echo
-    
-    # Install test dependencies, for CI. 
+
+    # Install test dependencies, for CI.
     if [ "$INSTALL_TEST" ]; then
         if [[ -f "$1/requirements-test.txt" ]]; then
             puts-step "Installing test dependencies…"
diff --git a/bin/steps/pip-uninstall b/bin/steps/pip-uninstall
index 9ec0539..58fdbf0 100755
--- a/bin/steps/pip-uninstall
+++ b/bin/steps/pip-uninstall
@@ -11,7 +11,10 @@ if [ ! "$SKIP_PIP_INSTALL" ]; then
 
     cp .heroku/python/requirements-declared.txt requirements-declared.txt
 
-    pip-diff --stale requirements-declared.txt requirements.txt --exclude setuptools pip wheel > .heroku/python/requirements-stale.txt
+
+    if ! pip-diff --stale requirements-declared.txt requirements.txt --exclude setuptools pip wheel > .heroku/python/requirements-stale.txt; then
+      mount "failure.bad-requirements"
+    fi
 
     rm -fr requirements-declared.txt
 
diff --git a/bin/steps/pipenv b/bin/steps/pipenv
index 5323add..7f9e3e5 100755
--- a/bin/steps/pipenv
+++ b/bin/steps/pipenv
@@ -14,6 +14,7 @@ if [[ -f Pipfile.lock ]]; then
                 # echo "To disable this functionality, run the following command:"
                 # echo ""
                 # echo "    $ heroku config:set PIPENV_ALWAYS_INSTALL=1" | indent
+                mcount "tool.pipenv"
                 export SKIP_PIPENV_INSTALL=1
                 export SKIP_PIP_INSTALL=1
             fi