Unchecked return value

If the function returns an error value, the error value may be mistaken for a normal value. Value returned from a function is not checked for errors before being used.
/data/mci/32efa59870abdf038a0fde7ee8b7f94f/bazel_cache/c6da8300f86815eedad6e42aa8aa02ec/execroot/_main/src/mongo/db/exec/classic/index_scan.cpp:271: CHECKED_RETURN 175892 Calling "insert" without checking return value (as is done elsewhere 4 out of 5 times).