Sentry.CrashError: ** (exit) bad return value: :rollback

[sentry-io[bot]]

Sentry Issue: MAINNET-GWSCAN-10

Sentry.CrashError: ** (exit) bad return value: :rollback

(Sentry.CrashError ** (exit) bad return value: :rollback)

[zmcNotafraid]

For handle block rollback situation, we throw error manually.But it will generate a sentry error.So we change another way to handle block rollback. We use Process.exit(child, :kill), it's more graceful.