sql: create table fails silently instead of retrying
sql: create table fails silently instead of retrying

While trying to resurrect #6277, I found that table creation was failing
silently.

I'll work on adding a direct test for it later. I found that TestRepair can
fail still with other reasons. I just wanted to get this fix in right away.

paperstreet/cockroach,cockroachdb/cockroach,cockroachdb/cockroach,vaibhavarora/cockroach,veteranlu/cockroach,petermattis/cockroach,paperstreet/cockroach,vaibhavarora/cockroach,vaibhavarora/cockroach,glycerine/cockroach,paperstreet/cockroach,glycerine/cockroach,veteranlu/cockroach,veteranlu/cockroach,petermattis/cockroach,paperstreet/cockroach,glycerine/cockroach,petermattis/cockroach,glycerine/cockroach,maxlang/cockroach,maxlang/cockroach,cockroachdb/cockroach,vaibhavarora/cockroach,maxlang/cockroach,vaibhavarora/cockroach,paperstreet/cockroach,petermattis/cockroach,glycerine/cockroach,petermattis/cockroach,paperstreet/cockroach,maxlang/cockroach,vaibhavarora/cockroach,glycerine/cockroach,maxlang/cockroach,glycerine/cockroach,petermattis/cockroach,cockroachdb/cockroach,maxlang/cockroach,vaibhavarora/cockroach,maxlang/cockroach,veteranlu/cockroach,cockroachdb/cockroach,maxlang/cockroach,veteranlu/cockroach,paperstreet/cockroach,veteranlu/cockroach,veteranlu/cockroach,petermattis/cockroach,glycerine/cockroach,vaibhavarora/cockroach,cockroachdb/cockroach,cockroachdb/cockroach,paperstreet/cockroach,cockroachdb/cockroach,veteranlu/cockroach,petermattis/cockroach