[0.15.12] Segfault while game not focused [Linux]

[archerseven]

Props, guys, this is probably the longest I've ever played a game without a crash... and I'm on Arch Linux with testing repos playing the expiremental version of the game with a GPU that noone has with drivers that like to crash, so you guys are doing something very right. Keep it up.
That said, it has crashed, and I'm not ready to blame my graphics drivers (though they're by no means off the hook).

Playing a fairly long-run game with my roommate, though I was in single player when it crashed (I'd normally be running it on a remote headless server... I'll upload it back to the server when releases are less frequent.)
No warning ahead of time, I changed focus to Firefox and after a few seconds noticed sound had stopped. Looked back at the center monitor and it wasn't moving... opened the relevant terminal and saw the unmistakeable output of a segfault. (Then I went looking for source to load into gdb and remembered this isn't Warzone2100. Like I said, good job on making a game THIS stable.)

Save and log attached, system info below. Let me know if I can provide any more information, and I'll post back here if I reproduce.

System info...
[max@sylenia:factorio]$ sudo inxi -SGCMmx
System: Host: sylenia Kernel: 4.10.11-1-ARCH x86_64 (64 bit gcc: 6.3.1) Desktop: N/A Distro: Arch Linux
Machine: Device: desktop Mobo: ASRock model: Z87 Extreme6 serial: E80-39020000192
UEFI: American Megatrends v: P2.40 date: 07/08/2014
CPU: Quad core Intel Core i5-4570 (-MCP-) cache: 6144 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 25602
clock speeds: max: 3600 MHz 1: 3579 MHz 2: 3581 MHz 3: 3597 MHz 4: 3574 MHz
Memory: Used/Total: 9685.9/31091.5MB
Array-1 capacity: 32 GB devices: 4 EC: None
Device-1: ChannelA-DIMM0 size: 8 GB speed: 1333 MHz type: DDR3 part: F3-1600C9-8GXM
Device-2: ChannelA-DIMM1 size: 8 GB speed: 1333 MHz type: DDR3 part: BLS8G3D1609DS1S00.
Device-3: ChannelB-DIMM0 size: 8 GB speed: 1333 MHz type: DDR3 part: F3-1600C9-8GXM
Device-4: ChannelB-DIMM1 size: 8 GB speed: 1333 MHz type: DDR3 part: BLS8G3D1609DS1S00.
Graphics: Card-1: Intel Xeon E3-1200 v3/4th Gen Core Processor Integrated Graphics Controller bus-ID: 00:02.0
Card-2: Advanced Micro Devices [AMD/ATI] Bonaire [FirePro W5100] bus-ID: 01:00.0
Display Server: X.org 1.19.3 drivers: ati,intel,amdgpu (unloaded: modesetting,radeon)
tty size: 318x90 Advanced Data: N/A for root

[Rseding91]

Do you have any way to reproduce the crash? The log file doesn't show anything useful as to why it crashed.