Add execution info to action conflict error message

The execution info is part of the action, so including it in the error message
makes the reported error easier to diagnose when two targets performing the
same action have different execution info.

PiperOrigin-RevId: 680633760
Change-Id: I6a93bf3584b5306456b712c84351145939c119b8

src/main/java/com/google/devtools/build/lib/analysis/actions/SpawnAction.java

@@ -403,6 +403,11 @@ public String describeKey() {
       message.append(ShellEscaper.escapeString(var));
       message.append('\n');
     }
+    for (Map.Entry<String, String> entry : getExecutionInfo().entrySet()) {
+      message.append("  Execution info: ");
+      message.append(entry.getKey()).append('=').append(entry.getValue());
+      message.append('\n');
+    }
     try {
       for (String argument : ShellEscaper.escapeAll(getArguments())) {
         message.append("  Argument: ");