Dereference after null check
Either the check against null is unnecessary, or there may be a null pointer dereference. Pointer is checked against null but then dereferenced anyway
/src/mongo/db/catalog/index_builds_manager.cpp:135: FORWARD_NULL 114771 Comparing "coll" to null implies that "coll" might be null.
/src/mongo/db/catalog/index_builds_manager.cpp:146: FORWARD_NULL 114771 Passing null pointer "coll" to "numRecords", which dereferences it. (The dereference happens because this is a virtual function call.)