Espruino stopped working

False alarm. I guess it worked for 1 second. Here is the dmesg output when I handled the operation described above:

[30086.430599] usb 3-1: new full-speed USB device number 6 using xhci_hcd
[30086.430724] usb 3-1: Device not responding to set address.
[30086.634859] usb 3-1: Device not responding to set address.
[30086.838994] usb 3-1: device not accepting address 6, error -71
[30101.974199] usb 3-1: new full-speed USB device number 8 using xhci_hcd
[30101.991363] usb 3-1: New USB device found, idVendor=0483, idProduct=5740
[30101.991366] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[30101.991368] usb 3-1: Product: STM32 Virtual COM Port  
[30101.991369] usb 3-1: Manufacturer: STMicroelectronics
[30101.991370] usb 3-1: SerialNumber: 48DF62573330
[30101.991480] usb 3-1: ep 0x82 - rounding interval to 1024 microframes, ep desc says 2040 microframes
[30102.072469] cdc_acm 3-1:1.0: This device cannot do calls on its own. It is not a modem.
[30102.072487] cdc_acm 3-1:1.0: ttyACM0: USB ACM device
[30102.072735] usbcore: registered new interface driver cdc_acm
[30102.072737] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[30102.146920] usb 3-1: USB disconnect, device number 8

It disconnected without me unplugging it. Now there is no output, i retried the steps above. It does not look like it's dead, it still blinks the red led after resetting, but the logs are empty. I'll explore additional options tomorrow :(