gcc-next build failed during installation steps for peach_pit. 

Also reproduced locally by running:
sudo USE="next_gcc" FEATURES="noclean" emerge cross-x86_64-cros-linux-gnu/gcc.

Trybot logs:
https://uberchromegw.corp.google.com/i/chromiumos.tryserver/builders/release/builds/7765/steps/SetupBoard/logs/stdio

Error snippet:

make[3]: Leaving directory '/var/tmp/portage/cross-armv7a-cros-linux-gnueabi/gcc-4.9.2-r145/work/gcc-4.9.2-build-armv7a-cros-linux-gnueabi/armv7a-cros-linux-gnueabi/libgcc'
make[2]: Leaving directory '/var/tmp/portage/cross-armv7a-cros-linux-gnueabi/gcc-4.9.2-r145/work/gcc-4.9.2-build-armv7a-cros-linux-gnueabi/armv7a-cros-linux-gnueabi/libgcc'
make[1]: Leaving directory '/var/tmp/portage/cross-armv7a-cros-linux-gnueabi/gcc-4.9.2-r145/work/gcc-4.9.2-build-armv7a-cros-linux-gnueabi'
>>> Source compiled.
 * --------------------------- ACCESS VIOLATION SUMMARY ---------------------------
 * LOG FILE: "/var/log/sandbox/sandbox-19432.log"
 * 
VERSION 1.0
FORMAT: F - Function called
FORMAT: S - Access Status
FORMAT: P - Path as passed to function
FORMAT: A - Absolute Path (not canonical)
FORMAT: R - Canonical Path
FORMAT: C - Command Line

F: open_wr
S: deny
P: and
A: /usr/armv7a-cros-linux-gnueabi/usr/include/and
R: /usr/armv7a-cros-linux-gnueabi/usr/include/and
C: /bin/sh 

F: open_wr
S: deny
P: max
A: /usr/armv7a-cros-linux-gnueabi/usr/include/max
R: /usr/armv7a-cros-linux-gnueabi/usr/include/max
C: /bin/sh 


>>> Failed to emerge cross-armv7a-cros-linux-gnueabi/gcc-4.9.2-r145, Log file:

>>>  '/var/log/portage/cross-armv7a-cros-linux-gnueabi:gcc-4.9.2-r145:20161214-093526.log'


 * error: gcc failed :(