[meta-raspberrypi] build problem logs

jackzhang1992@ubuntu:~/poky/build$ bitbake rpi-hwup-image
Parsing recipes: 100% |#########################################| Time: 00:01:13
Parsing of 921 .bb files complete (0 cached, 921 parsed). 1352 targets, 61 skipped, 0 masked, 0 errors.
NOTE: Resolving any missing task queue dependencies

Build Configuration:
BB_VERSION = "1.28.0"
BUILD_SYS = "i686-linux"
NATIVELSBSTRING = "Ubuntu-14.04"
TARGET_SYS = "arm-poky-linux-gnueabi"
MACHINE = "raspberrypi2"
DISTRO = "poky"
DISTRO_VERSION = "2.0.1"
TUNE_FEATURES = "arm armv7a vfp thumb neon callconvention-hard vfpv4 cortexa7"
TARGET_FPU = "vfp-vfpv4-neon"
meta
meta-yocto
meta-yocto-bsp = "jethro:2fb7ee2628e23d7efc9b041bb9daae7c4a8de541"
meta-raspberrypi = "master:6314f668fa14473463bb777ffaf778333fea16eb"

NOTE: Preparing RunQueue
NOTE: Executing SetScene Tasks
NOTE: Executing RunQueue Tasks
WARNING: Failed to fetch URL http://tukaani.org/xz/xz-5.2.1.tar.gz, attempting MIRRORS if available
WARNING: Failed to fetch URL https://gmplib.org/download/gmp/gmp-6.0.0a.tar.bz2, attempting MIRRORS if available
WARNING: Failed to fetch URL ftp://invisible-island.net/ncurses/current/ncurses-5.9-20150329.tgz, attempting MIRRORS if available
WARNING: Failed to fetch URL http://www.openssl.org/source/openssl-1.0.2d.tar.gz, attempting MIRRORS if available
WARNING: Failed to fetch URL ftp://xmlsoft.org/libxml2/libxml2-2.9.2.tar.gz;name=libtar, attempting MIRRORS if available
WARNING: Failed to fetch URL http://ftp.gnu.org/gnu/bash/bash-4.3-patches/bash43-032;apply=yes;striplevel=0;name=patch032, attempting MIRRORS if available
WARNING: Failed to fetch URL git://github.com/kraj/localedef;branch=master;name=localedef;destsuffix=git/localedef, attempting MIRRORS if available
WARNING: Failed to fetch URL ftp://xmlsoft.org/libxslt//libxslt-1.1.28.tar.gz, attempting MIRRORS if available
Currently 4 running tasks (863 of 1971):
0: linux-raspberrypi-1_4.1.10+gitAUTOINC+b74df9228c-r0 do_fetch (pid 9163)
1: rpi-mkimage-native-git-r0 do_fetch (pid 15633)
WARNING: Failed to fetch URL ftp://ftp.iana.org/tz/releases/tzcode2015g.tar.gz;name=tzcode, attempting MIRRORS if available
WARNING: Failed to fetch URL https://github.com/dosfstools/dosfstools/releases/download/v3.0.28/dosfstools-3.0.28.tar.xz, attempting MIRRORS if available
WARNING: Failed to fetch URL git://github.com/raspberrypi/firmware.git;protocol=git;branch=master, attempting MIRRORS if available
ERROR: Fetcher failure: Fetch command failed with exit code 128, output:
Cloning into bare repository '/home/jackzhang1992/poky/build/downloads/git2/github.com.raspberrypi.firmware.git'...
fatal: The remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed

ERROR: Function failed: Fetcher failure for URL: 'git://github.com/raspberrypi/firmware.git;protocol=git;branch=master'. Unable to fetch URL from any source.
ERROR: Logfile of failure stored in: /home/jackzhang1992/poky/build/tmp/work/raspberrypi2-poky-linux-gnueabi/bcm2835-bootfiles/20151021-r3/temp/log.do_fetch.9874
ERROR: Task 207 (/home/jackzhang1992/poky/meta-raspberrypi/recipes-bsp/bootfiles/bcm2835-bootfiles.bb, do_fetch) failed with exit code '1'
Waiting for 2 running tasks to finish:
0: linux-raspberrypi-1_4.1.10+gitAUTOINC+b74df9228c-r0 do_fetch (pid 9163)
1: prelink-native-1.0+gitAUTOINC+927979bbd1-r0 do_fetch (pid 23502)