zyga@lambert ~/go/src/github.com/snapcore/snapd/interfaces/builtin $ go test
----------------------------------------------------------------------
FAIL: serial_port_test.go:311: SerialPortInterfaceSuite.TestConnectedPlugUDevSnippets
serial_port_test.go:349:
c.Assert(snippet, Equals, expectedSnippet4)
... obtained string = "" +
... "IMPORT{builtin}=\"usb_id\"\n" +
... "SUBSYSTEM==\"tty\", SUBSYSTEMS==\"usb\", ATTRS{idVendor}==\"abcd\", ATTRS{idProduct}==\"1234\", TAG+=\"snap_client-snap_app-accessing-2-ports\""
... expected string = "" +
... "IMPORT{builtin}=\"usb_id\"\n" +
... "SUBSYSTEM==\"tty\", SUBSYSTEMS==\"usb\", ATTRS{idVendor}==\"abcd\", ATTRS{idProduct}==\"1234\", ENV{ID_USB_INTERFACE_NUM}==\"00\", TAG+=\"snap_client-snap_app-accessing-2-ports\""
OOPS: 746 passed, 1 FAILED
--- FAIL: Test (0.43s)
FAIL
exit status 1
FAIL github.com/snapcore/snapd/interfaces/builtin 0.439s