Genuino 101 not detected when connected by USB


I recently bought a Genuino 101 recently and am trying to flash hello world program with Zephyr RTOS. But I am getting strange error when i flash it (screen shot attached). Later when I connect the Genuino 101 to the USB port, I dont see the board detected in dmesg (I am using Linux BTW). Any one has seen these errors before and any tips to resolve it?