Use of auto that causes a copy
Unnecessary object copies can affect performance. Using the auto keyword without an & causes a copy.
/data/mci/6140986752f315ae1d2c1d7ffa1ce13a/bazel_cache/1e034c4de3ae6337dc7b387a79ef43e8/execroot/_main/src/mongo/db/s/create_collection_coordinator.cpp:1785: AUTO_CAUSES_COPY 174971 This lambda has an unspecified return type. This implies "auto" and causes the copy of an object of type "mongo::ShardId".
/data/mci/6140986752f315ae1d2c1d7ffa1ce13a/bazel_cache/1e034c4de3ae6337dc7b387a79ef43e8/execroot/_main/src/mongo/db/s/create_collection_coordinator.cpp:1794: AUTO_CAUSES_COPY 174971 This return statement creates a copy.