Problem when building haiku nightly release

When i build haiku on my machine, i got this message:

Creating image …
Writing boot code to “/home/user/Documents/GCI-2016/haiku/haiku/generated/haiku-nightly.image” (partition offset: 0 bytes, start offset = 0) …
Populating image …
Extracting /home/user/Documents/GCI-2016/haiku/haiku/generated/download/WebPositiveBookmarks-2016-11-06.zip …
Resolving package dependencies …
Extracting /home/user/Documents/GCI-2016/haiku/haiku/generated/download/man-1.6g-4-x86_64.hpkg …
Extracting /home/user/Documents/GCI-2016/haiku/haiku/generated/download/openssh-7.1p1-4-x86_64.hpkg …
Extracting /home/user/Documents/GCI-2016/haiku/haiku/generated/download/bash-4.3.42-3-x86_64.hpkg …
Extracting /home/user/Documents/GCI-2016/haiku/haiku/generated/download/less-481-1-x86_64.hpkg …
Extracting /home/user/Documents/GCI-2016/haiku/haiku/generated/download/wget-1.18-1-x86_64.hpkg …
Extracting /home/user/Documents/GCI-2016/haiku/haiku/generated/download/cdrtools-3.02~a06-2-x86_64.hpkg …
_ReadBuffer(0x7ffcc952f370, 80) failed to read data: Unknown error -2147459056
Unmounting …

What does above mean?, did my build successful?

My machine:

Linux localhost 4.8.8-200.fc24.x86_64 #1 SMP Tue Nov 15 19:41:51 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

On IRC, @PulkoMandy ventured a guess that the reason might be a truncated file due to a failed download. Try deleting the stuff in the generated/download folder.

@humdinger it works thank you!