Structurally dead code

Actions intended to be performed by the unreachable code will never occur. Code block is unreachable because of the syntactic structure of the code
/data/mci/9292c3def3822c0dfd66af88847bcc64/bazel_cache/004acac643584f695e6309f72694e5ad/execroot/_main/src/mongo/db/exec/sbe/stages/hash_lookup_unwind.cpp:217: UNREACHABLE 142589 This code cannot be reached: "return this->trackPlanState...".