Bad bit shift operation

The operation may have an undefined behavior or yield an unexpected result. A bit shift operation has a shift amount which is too large or has a negative value.
/src/mongo/bson/util/simple8b.cpp:422: BAD_SHIFT 120377 Checking "trailingZerosCount == 124" implies that "trailingZerosCount" is 124 on the true branch.
/src/mongo/bson/util/simple8b.cpp:423: BAD_SHIFT 120377 In expression "value >> trailingZerosCount", right shifting by more than 63 bits has undefined behavior. The shift amount, "trailingZerosCount", is 124.