Crash report: Error: Connection was already closed...

[tessel-crashbot]

Error: Connection was already closed...
    at USB.Connection._write (t2-cli/lib/usb-connection.js:110:14)
    at doWrite (_stream_writable.js:397:12)
    at writeOrBuffer (_stream_writable.js:383:5)
    at USB.Connection.Writable.write (_stream_writable.js:290:11)
    at new USBProcess (t2-cli/lib/usb/usb-process.js:126:10)
    at USBDaemon.openProcess (t2-cli/lib/usb/usb-daemon.js:85:21)
    at USB.Connection.exec (t2-cli/lib/usb-connection.js:90:10)
    at pollForWifiSignal (t2-cli/lib/tessel/wifi.js:231:27)
    at receive (t2-cli/lib/tessel/wifi.js:250:19)
    at USBProcess.<anonymous> (t2-cli/lib/tessel/tessel.js:111:14)

Full report is at -0x776306594a16db6e