Another fix for the bisection job (#1227)
Summary: Pull Request resolved: https://github.com/pytorch/benchmark/pull/1227
Test Plan: workflow: https://github.com/pytorch/benchmark/actions/runs/3161940091/jobs/5148061215
Reviewed By: atalman
Differential Revision: D39986219
Pulled By: atalman
fbshipit-source-id: 78343fbb84c00957ef1836af6a8e78e5e82e0244
