D: [iurt_root_command] chroot
Building target platforms: x86_64
Building for target x86_64
sh: line 4: [: -j8: integer expression expected
error: Failed to open shell expansion pipe for command: echo $HOME: Resource temporarily unavailable 
  2<      (%)
  1<    (%_topdir)
  0<  (%_srcrpmdir)
error: Could not open : No such file or directory

RPM build errors:
    Failed to open shell expansion pipe for command: echo $HOME: Resource temporarily unavailable 
    Could not open : No such file or directory
I: [iurt_root_command] ERROR: chroot