What's these problems

[1760793695]

sort

/usr/local/go/src/sort/zsortfunc.go:10:6: insertionSort_func redeclared in this block
/usr/local/go/src/sort/zfuncversion.go:10:6: other declaration of insertionSort_func
/usr/local/go/src/sort/zsortfunc.go:20:6: siftDown_func redeclared in this block
/usr/local/go/src/sort/zfuncversion.go:19:6: other declaration of siftDown_func
/usr/local/go/src/sort/zsortfunc.go:38:6: heapSort_func redeclared in this block
/usr/local/go/src/sort/zfuncversion.go:38:6: other declaration of heapSort_func
/usr/local/go/src/sort/zsortfunc.go:329:6: swapRange_func redeclared in this block
/usr/local/go/src/sort/zfuncversion.go:65:6: other declaration of swapRange_func
/usr/local/go/src/sort/zsortfunc.go:335:6: stable_func redeclared in this block
/usr/local/go/src/sort/zfuncversion.go:163:6: other declaration of stable_func
/usr/local/go/src/sort/zsortfunc.go:378:6: symMerge_func redeclared in this block
/usr/local/go/src/sort/zfuncversion.go:187:6: other declaration of symMerge_func
/usr/local/go/src/sort/zsortfunc.go:464:6: rotate_func redeclared in this block
/usr/local/go/src/sort/zfuncversion.go:252:6: other declaration of rotate_func