net/http: TestTransportIdleConnTimeout failures

[gopherbot]

#!watchflakes
default <- pkg == "net/http" && test ~ `TestTransportIdleConnTimeout`

Issue created automatically to collect these failures.

Example (log):

=== RUN   TestTransportIdleConnTimeout
--- FAIL: TestTransportIdleConnTimeout (0.06s)
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
	panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x20 pc=0x849b991]

goroutine 29682 gp=0x9eabe68 m=9 mp=0x9900a08 [running]:
panic({0x850df20, 0x88d4108})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:778 +0x144 fp=0x9c53c78 sp=0x9c53c24 pc=0x80854c4
testing.tRunner.func1.2({0x850df20, 0x88d4108})
...
net/http_test.TestConsumingBodyOnNextConn(0x9c82408)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/net/http/serve_test.go:170 +0x36 fp=0x98e5f84 sp=0x98e5f04 pc=0x84261e6
testing.tRunner(0x9c82408, 0x859dcb8)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1690 +0x119 fp=0x98e5fe4 sp=0x98e5f84 pc=0x815f5c9
testing.(*T).Run.gowrap1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1743 +0x2e fp=0x98e5ff0 sp=0x98e5fe4 pc=0x81605ee
runtime.goexit({})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_386.s:1393 +0x1 fp=0x98e5ff4 sp=0x98e5ff0 pc=0x80c2341
created by testing.(*T).Run in goroutine 1
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1743 +0x3d1

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "net/http" && test == "TestTransportIdleConnTimeout"

2024-05-16 16:44 gotip-linux-386-longtest go@4c1cc1c9 net/http.TestTransportIdleConnTimeout (log)

=== RUN   TestTransportIdleConnTimeout
--- FAIL: TestTransportIdleConnTimeout (0.06s)
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
	panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x20 pc=0x849b991]

goroutine 29682 gp=0x9eabe68 m=9 mp=0x9900a08 [running]:
panic({0x850df20, 0x88d4108})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:778 +0x144 fp=0x9c53c78 sp=0x9c53c24 pc=0x80854c4
testing.tRunner.func1.2({0x850df20, 0x88d4108})
...
net/http_test.TestConsumingBodyOnNextConn(0x9c82408)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/net/http/serve_test.go:170 +0x36 fp=0x98e5f84 sp=0x98e5f04 pc=0x84261e6
testing.tRunner(0x9c82408, 0x859dcb8)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1690 +0x119 fp=0x98e5fe4 sp=0x98e5f84 pc=0x815f5c9
testing.(*T).Run.gowrap1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1743 +0x2e fp=0x98e5ff0 sp=0x98e5fe4 pc=0x81605ee
runtime.goexit({})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_386.s:1393 +0x1 fp=0x98e5ff4 sp=0x98e5ff0 pc=0x80c2341
created by testing.(*T).Run in goroutine 1
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1743 +0x3d1

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "net/http" && test == "TestTransportIdleConnTimeout"

2024-07-16 18:17 gotip-linux-386-longtest go@b4a92f56 net/http.TestTransportIdleConnTimeout (log)

=== RUN   TestTransportIdleConnTimeout
--- FAIL: TestTransportIdleConnTimeout (0.01s)
panic: runtime error: invalid memory address or nil pointer dereference [recovered]
	panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x20 pc=0x84bf2ca]

goroutine 29421 gp=0x9525208 m=21 mp=0x938ea08 [running]:
panic({0x8533bc0, 0x8911560})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:804 +0x144 fp=0x915fc78 sp=0x915fc24 pc=0x80bc284
testing.tRunner.func1.2({0x8533bc0, 0x8911560})
...
net/http_test.TestConsumingBodyOnNextConn(0x9214308)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/net/http/serve_test.go:170 +0x36 fp=0x9354784 sp=0x9354704 pc=0x84489f6
testing.tRunner(0x9214308, 0x85c5560)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1690 +0x119 fp=0x93547e4 sp=0x9354784 pc=0x81615a9
testing.(*T).Run.gowrap1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1743 +0x2e fp=0x93547f0 sp=0x93547e4 pc=0x81625ce
runtime.goexit({})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_386.s:1393 +0x1 fp=0x93547f4 sp=0x93547f0 pc=0x80c3411
created by testing.(*T).Run in goroutine 1
	/home/swarming/.swarming/w/ir/x/w/goroot/src/testing/testing.go:1743 +0x3d1

— watchflakes