=== RUN   TestSpawn
==================
WARNING: DATA RACE
Read at 0x0000007f12a8 by goroutine 9:
  racesurvey/C_spawnwait.TestSpawn.func2()
      /tmp/racesurvey/C_spawnwait/c_test.go:14 +0x70

Previous write at 0x0000007f12a8 by goroutine 8:
  racesurvey/C_spawnwait.TestSpawn.func1()
      /tmp/racesurvey/C_spawnwait/c_test.go:13 +0x88

Goroutine 9 (running) created at:
  racesurvey/C_spawnwait.TestSpawn()
      /tmp/racesurvey/C_spawnwait/c_test.go:14 +0x44
  testing.tRunner()
      /home/ubuntu/sdk/go1.26.3/src/testing/testing.go:2036 +0x21c
  testing.(*T).Run.gowrap1()
      /home/ubuntu/sdk/go1.26.3/src/testing/testing.go:2101 +0x38

Goroutine 8 (finished) created at:
  racesurvey/C_spawnwait.TestSpawn()
      /tmp/racesurvey/C_spawnwait/c_test.go:13 +0x34
  testing.tRunner()
      /home/ubuntu/sdk/go1.26.3/src/testing/testing.go:2036 +0x21c
  testing.(*T).Run.gowrap1()
      /home/ubuntu/sdk/go1.26.3/src/testing/testing.go:2101 +0x38
==================
    testing.go:1712: race detected during execution of test
--- FAIL: TestSpawn (0.00s)
=== RUN   TestWait
--- PASS: TestWait (0.00s)
FAIL