RC-8 issues

I tried to download the new RC and just using the stock version from the github page I cannot verify it out of the gate.
It gives me this message:

Arduino: 1.6.13 (Windows 10), Board: "Arduino/Genuino Mega or Mega 2560, ATmega2560 (Mega 2560)"

Exception 0xc0000090 0x0 0x0 0x10282a
PC=0x10282a

syscall.Syscall12(0x7770e320, 0xa, 0x12e3fef0, 0x12e5aa00, 0x0, 0x0, 0x1, 0x400, 0x12fec000, 0x0, ...)
C:/Go1.5/src/runtime/syscall_windows.go:161 +0x4a
syscall.CreateProcess(0x12e3fef0, 0x12e5aa00, 0x0, 0x0, 0x1, 0x400, 0x12fec000, 0x0, 0x12e2b4f8, 0x12e2b4a4, ...)
C:/Go1.5/src/syscall/zsyscall_windows.go:580 +0xba
syscall.StartProcess(0x1323fc20, 0x41, 0x12f862a0, 0x1c, 0x1c, 0x12e2b5b0, 0x0, 0x0, 0x0, 0x0)
C:/Go1.5/src/syscall/exec_windows.go:326 +0x752
os.startProcess(0x1323fc20, 0x41, 0x12f862a0, 0x1c, 0x1c, 0x12e2b6dc, 0x13205d40, 0x0, 0x0)
C:/Go1.5/src/os/exec_posix.go:45 +0x2c8
os.StartProcess(0x1323fc20, 0x41, 0x12f862a0, 0x1c, 0x1c, 0x12e2b6dc, 0x0, 0x0, 0x0)
C:/Go1.5/src/os/doc.go:24 +0x53
os/exec.(*Cmd).Start(0x131d1f40, 0x0, 0x0)
C:/Go1.5/src/os/exec/exec.go:328 +0x6da
os/exec.(*Cmd).Run(0x131d1f40, 0x0, 0x0)
C:/Go1.5/src/os/exec/exec.go:255 +0x2b
arduino.cc/builder/builder_utils.ExecRecipeCollectStdErr(0x12a46a80, 0x5c0ab0, 0x15, 0x1, 0x328b43e8, 0x698034, 0x0, 0x0, 0x0, 0x0)
c:/jenkins/workspace/arduino-builder-windows/src/arduino.cc/builder/builder_utils/utils.go:341 +0x129
arduino.cc/builder.(*GCCPreprocRunnerForDiscoveringIncludes).Run(0x12a46a60, 0x12776700, 0x0, 0x0)
c:/jenkins/workspace/arduino-builder-windows/src/arduino.cc/builder/gcc_preproc_runner.go:93 +0x26b
arduino.cc/builder.runCommand(0x12776700, 0x32d50578, 0x12a46a60, 0x0, 0x0)
c:/jenkins/workspace/arduino-builder-windows/src/arduino.cc/builder/container_find_includes.go:183 +0x57
arduino.cc/builder.findIncludesUntilDone(0x12776700, 0x129741e0, 0x5490e0, 0x12a8fd70, 0x12a1341e, 0x17, 0x0, 0x0)
c:/jenkins/workspace/arduino-builder-windows/src/arduino.cc/builder/container_find_includes.go:331 +0x12de
arduino.cc/builder.(*ContainerFindIncludes).Run(0x698034, 0x12776700, 0x0, 0x0)
c:/jenkins/workspace/arduino-builder-windows/src/arduino.cc/builder/container_find_includes.go:149 +0x68b
arduino.cc/builder.runCommands(0x12776700, 0x12e2bccc, 0x22, 0x22, 0x1, 0x0, 0x0)
c:/jenkins/workspace/arduino-builder-windows/src/arduino.cc/builder/builder.go:189 +0xe2
arduino.cc/builder.(*Builder).Run(0x12e2bdf0, 0x12776700, 0x0, 0x0)
c:/jenkins/workspace/arduino-builder-windows/src/arduino.cc/builder/builder.go:124 +0xe29
arduino.cc/builder.RunBuilder(0x12776700, 0x0, 0x0)
c:/jenkins/workspace/arduino-builder-windows/src/arduino.cc/builder/builder.go:220 +0x35
main.main()
c:/jenkins/workspace/arduino-builder-windows/src/arduino.cc/arduino-builder/main.go:316 +0x152c
eax 0x0
ebx 0x33025008
ecx 0x0
edx 0x32fc0000
edi 0x189c
esi 0x33025000
ebp 0xdf6d4
esp 0xdf6ac
eip 0x10282a
eflags 0x10216
cs 0x23
fs 0x53
gs 0x2b
C:\Program Files (x86)\Arduino\arduino-builder returned 2
Error compiling for board Arduino/Genuino Mega or Mega 2560.

Nevermind, a reboot of the pc fixed the issue. Weird.