os/signal: TestTime killed with SIGQUIT on netbsd

[gopherbot]

#!watchflakes
post <- pkg == "os/signal" && test == "TestTime" && goos == "netbsd" && `SIGQUIT`

Issue created automatically to collect these failures.

Example (log):

SIGQUIT: quit
PC=0x200167e2c m=10 sigcode=0

r0      0x4
r1      0x0
r2      0x0
r3      0x0
r4      0x400003bb40
r5      0x0
r6      0x4000122820
...

runtime.gopark(0x4000032e68?, 0x200104d98?, 0x78?, 0x2e?, 0x20010ca8c?)
	/var/gobuilder/buildlet/go/src/runtime/proc.go:363 +0xe4 fp=0x4000032df0 sp=0x4000032dd0 pc=0x200137e84
runtime.chanrecv(0x40001921e0, 0x0, 0x1)
	/var/gobuilder/buildlet/go/src/runtime/chan.go:583 +0x47c fp=0x4000032e80 sp=0x4000032df0 pc=0x20010608c
runtime.chanrecv1(0x4000192180?, 0x37768e5f1?)
	/var/gobuilder/buildlet/go/src/runtime/chan.go:442 +0x14 fp=0x4000032eb0 sp=0x4000032e80 pc=0x200105bd4
os/signal.TestTime(0x4000184680?)
	/var/gobuilder/buildlet/go/src/os/signal/signal_test.go:689 +0x21c fp=0x4000032f60 sp=0x4000032eb0 pc=0x2001ccdbc
testing.tRunner(0x4000184b60, 0x2002404c0)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "os/signal" && test == "TestTime"

2023-07-06 19:41 netbsd-arm64-bsiegert go@5fa6923b os/signal.TestTime (log)

SIGQUIT: quit
PC=0x200167e2c m=10 sigcode=0

r0      0x4
r1      0x0
r2      0x0
r3      0x0
r4      0x400003bb40
r5      0x0
r6      0x4000122820
...

runtime.gopark(0x4000032e68?, 0x200104d98?, 0x78?, 0x2e?, 0x20010ca8c?)
	/var/gobuilder/buildlet/go/src/runtime/proc.go:363 +0xe4 fp=0x4000032df0 sp=0x4000032dd0 pc=0x200137e84
runtime.chanrecv(0x40001921e0, 0x0, 0x1)
	/var/gobuilder/buildlet/go/src/runtime/chan.go:583 +0x47c fp=0x4000032e80 sp=0x4000032df0 pc=0x20010608c
runtime.chanrecv1(0x4000192180?, 0x37768e5f1?)
	/var/gobuilder/buildlet/go/src/runtime/chan.go:442 +0x14 fp=0x4000032eb0 sp=0x4000032e80 pc=0x200105bd4
os/signal.TestTime(0x4000184680?)
	/var/gobuilder/buildlet/go/src/os/signal/signal_test.go:689 +0x21c fp=0x4000032f60 sp=0x4000032eb0 pc=0x2001ccdbc
testing.tRunner(0x4000184b60, 0x2002404c0)

— watchflakes

[bcmills]

(attn @golang/netbsd @bsiegert)