Your device experienced a kernel panic, the equivalent of a "blue screen of death" on a WinPC, and a panic is what we see on UNIX and Mac OS desktops. It happens. There's more to the data log than you've posted.The panic could have been caused by an app that accessed a resource it's not supposed to or a piece of hardware your iPhone interfaced with (like a USB connector or BT headset or an app that doesn't conform to Apple's Developer's requirements). It could be buggy firmware by Apple. It could be poor network connectivity.
Originally Posted by grimduk
This forum has a lot of really helpful people, don't rank on them, we're here to gripe and help. I resemble that remark. I ported over from BBs, so I'm used to pulling my batteries daily or when an app is installed/deleted. Get in the habit of rebooting your iPhone - it's a smartphone, a scaled-down computer with a network that is there sometimes and not there sometimes (like XP is finicky when it's not talking to a network); since I got in the habit of rebooting my iPhones after an app installation/deletion or about once a day my iPhones don't reboot randomly anymore. YMMV.