Test testChecksumSuite.TestChecksum fails

[overvenus]

1. What did you do? If possible, provide a recipe for reproducing the error.

[2021-03-03T07:06:36.488Z] FAIL: executor_test.go:52: testChecksumSuite.TestChecksum
[2021-03-03T07:06:36.488Z] 
[2021-03-03T07:06:36.488Z] executor_test.go:53:
[2021-03-03T07:06:36.488Z]     c.Assert(s.mock.Start(), IsNil)
[2021-03-03T07:06:36.488Z] ... value *errors.withStack = listen tcp 0.0.0.0:41602: bind: address already in use ("listen tcp 0.0.0.0:41602: bind: address already in use")
[2021-03-03T07:06:36.488Z] 
[2021-03-03T07:06:36.488Z] OOPS: 0 passed, 1 FAILED

https://internal.pingcap.net/idc-jenkins/blue/organizations/jenkins/br_ghpr_unit_and_integration_test/detail/br_ghpr_unit_and_integration_test/5150/pipeline#step-876-log-270

[overvenus]

Other failed tests:

• https://internal.pingcap.net/idc-jenkins/blue/organizations/jenkins/br_ghpr_unit_and_integration_test/detail/br_ghpr_unit_and_integration_test/5169/pipeline
• https://internal.pingcap.net/idc-jenkins/blue/organizations/jenkins/br_ghpr_unit_and_integration_test/detail/br_ghpr_unit_and_integration_test/5187/pipeline#step-904-log-510