❯ go test ./pty/ptytest -v -run=TestPtytest/Do_not_hang -timeout=5s
=== RUN   TestPtytest
=== PAUSE TestPtytest
=== CONT  TestPtytest
=== RUN   TestPtytest/Do_not_hang_on_Intel_macOS
panic: test timed out after 5s

goroutine 18 [running]:
testing.(*M).startAlarm.func1()
	/usr/local/Cellar/go/1.18/libexec/src/testing/testing.go:2029 +0x8e
created by time.goFunc
	/usr/local/Cellar/go/1.18/libexec/src/time/sleep.go:176 +0x32

goroutine 1 [chan receive]:
testing.tRunner.func1()
	/usr/local/Cellar/go/1.18/libexec/src/testing/testing.go:1405 +0x4a5
testing.tRunner(0xc0001111e0, 0xc00013fcd8)
	/usr/local/Cellar/go/1.18/libexec/src/testing/testing.go:1445 +0x13b
testing.runTests(0xc000119220?, {0x132cc80, 0x1, 0x1}, {0x1500108?, 0x40?, 0x1337780?})
	/usr/local/Cellar/go/1.18/libexec/src/testing/testing.go:1837 +0x457
testing.(*M).Run(0xc000119220)
	/usr/local/Cellar/go/1.18/libexec/src/testing/testing.go:1719 +0x5d9
main.main()
	_testmain.go:49 +0x1aa

goroutine 6 [chan receive]:
testing.(*T).Run(0xc000111380, {0x11de169?, 0x6287be95?}, 0x11eb620)
	/usr/local/Cellar/go/1.18/libexec/src/testing/testing.go:1487 +0x37a
github.com/coder/coder/pty/ptytest_test.TestPtytest(0x0?)
	/Users/maf/Work/Code/coder/pty/ptytest/ptytest_test.go:22 +0x58
testing.tRunner(0xc000111380, 0x11eb628)
	/usr/local/Cellar/go/1.18/libexec/src/testing/testing.go:1439 +0x102
created by testing.(*T).Run
	/usr/local/Cellar/go/1.18/libexec/src/testing/testing.go:1486 +0x35f

goroutine 7 [chan receive]:
os/exec.(*Cmd).Wait(0xc0001506e0)
	/usr/local/Cellar/go/1.18/libexec/src/os/exec/exec.go:515 +0x188
os/exec.(*Cmd).Run(0x11bc5e0?)
	/usr/local/Cellar/go/1.18/libexec/src/os/exec/exec.go:341 +0x39
github.com/coder/coder/pty/ptytest_test.TestPtytest.func2(0x0?)
	/Users/maf/Work/Code/coder/pty/ptytest/ptytest_test.go:27 +0x145
testing.tRunner(0xc0001116c0, 0x11eb620)
	/usr/local/Cellar/go/1.18/libexec/src/testing/testing.go:1439 +0x102
created by testing.(*T).Run
	/usr/local/Cellar/go/1.18/libexec/src/testing/testing.go:1486 +0x35f

goroutine 8 [select]:
io.(*pipe).read(0xc000012540, {0xc00008e000, 0x1000, 0x1231c01?})
	/usr/local/Cellar/go/1.18/libexec/src/io/pipe.go:57 +0xb1
io.(*PipeReader).Read(0x3?, {0xc00008e000?, 0xc0001116c0?, 0xc00007d680?})
	/usr/local/Cellar/go/1.18/libexec/src/io/pipe.go:136 +0x25
bufio.(*Scanner).Scan(0xc000168100)
	/usr/local/Cellar/go/1.18/libexec/src/bufio/scan.go:215 +0x865
github.com/coder/coder/pty/ptytest.create.func2()
	/Users/maf/Work/Code/coder/pty/ptytest/ptytest.go:49 +0x93
created by github.com/coder/coder/pty/ptytest.create
	/Users/maf/Work/Code/coder/pty/ptytest/ptytest.go:48 +0x25f

goroutine 9 [IO wait]:
internal/poll.runtime_pollWait(0x1763a18, 0x72)
	/usr/local/Cellar/go/1.18/libexec/src/runtime/netpoll.go:302 +0x89
internal/poll.(*pollDesc).wait(0xc0000124e0?, 0xc000094000?, 0x1)
	/usr/local/Cellar/go/1.18/libexec/src/internal/poll/fd_poll_runtime.go:83 +0x32
internal/poll.(*pollDesc).waitRead(...)
	/usr/local/Cellar/go/1.18/libexec/src/internal/poll/fd_poll_runtime.go:88
internal/poll.(*FD).Read(0xc0000124e0, {0xc000094000, 0x8000, 0x8000})
	/usr/local/Cellar/go/1.18/libexec/src/internal/poll/fd_unix.go:167 +0x25a
os.(*File).read(...)
	/usr/local/Cellar/go/1.18/libexec/src/os/file_posix.go:31
os.(*File).Read(0xc0000100b0, {0xc000094000?, 0x119e840?, 0xc000092001?})
	/usr/local/Cellar/go/1.18/libexec/src/os/file.go:119 +0x5e
github.com/coder/coder/pty.ReadWriter.Read(...)
	/Users/maf/Work/Code/coder/pty/pty.go:55
io.copyBuffer({0x121adc0, 0xc000092000}, {0x121ac40, 0xc00005b2f0}, {0x0, 0x0, 0x0})
	/usr/local/Cellar/go/1.18/libexec/src/io/io.go:426 +0x1b2
io.Copy(...)
	/usr/local/Cellar/go/1.18/libexec/src/io/io.go:385
os.genericReadFrom(0x11d2740?, {0x121ac40, 0xc00005b2f0})
	/usr/local/Cellar/go/1.18/libexec/src/os/file.go:162 +0x67
os.(*File).ReadFrom(0x0?, {0x121ac40?, 0xc00005b2f0?})
	/usr/local/Cellar/go/1.18/libexec/src/os/file.go:156 +0x55
io.copyBuffer({0x121a8e0, 0xc0000100d8}, {0x121ac40, 0xc00005b2f0}, {0x0, 0x0, 0x0})
	/usr/local/Cellar/go/1.18/libexec/src/io/io.go:412 +0x14b
io.Copy(...)
	/usr/local/Cellar/go/1.18/libexec/src/io/io.go:385
os/exec.(*Cmd).stdin.func1()
	/usr/local/Cellar/go/1.18/libexec/src/os/exec/exec.go:266 +0x45
os/exec.(*Cmd).Start.func1(0x0?)
	/usr/local/Cellar/go/1.18/libexec/src/os/exec/exec.go:441 +0x25
created by os/exec.(*Cmd).Start
	/usr/local/Cellar/go/1.18/libexec/src/os/exec/exec.go:440 +0x715
FAIL	github.com/coder/coder/pty/ptytest	5.146s
FAIL