CLI-1273: Cryptic errors for 500 responses (#453)

* CLI-1273: Cryptic errors for 500 responses

* cleanup

* min covered msi

* kill mutant

* kill mutant

* kill mutant

.github/workflows/mt.yml

@@ -32,11 +32,11 @@ jobs:
           wget https://github.com/infection/infection/releases/download/0.28.1/infection.phar
           chmod +x infection.phar
 
-      - name: Run Infection for added files only
+      - name: Run Infection for touched lines only
         if: github.event_name == 'pull_request'
         run: |
           git fetch --depth=1 origin $GITHUB_BASE_REF
-          php infection.phar -j8 --git-diff-lines --git-diff-base=origin/$GITHUB_BASE_REF --logger-github --ignore-msi-with-no-mutations --only-covered
+          php infection.phar --threads=max --git-diff-lines --git-diff-base=origin/$GITHUB_BASE_REF --logger-github --ignore-msi-with-no-mutations --only-covered --min-covered-msi=100
 
       - name: Run Infection for all files
         if: github.event_name == 'push'