D: [iurt_root_command] chroot
Building target platforms: x86_64
Building for target x86_64
error: /home/pterjan/rpmbuild/SPECS/brutalchess.spec: line 26: Failed to open shell expansion pipe for command: echo $HOME: Resource temporarily unavailable 
  2<      (%)
  1<    (%_topdir)
  0<  (%_sourcedir)
error: /home/pterjan/rpmbuild/SPECS/brutalchess.spec: line 27: Failed to open shell expansion pipe for command: echo $HOME: Resource temporarily unavailable 
  2<      (%)
  1<    (%_topdir)
  0<  (%_sourcedir)
error: /home/pterjan/rpmbuild/SPECS/brutalchess.spec: line 49: Failed to open shell expansion pipe for command: ! /usr/bin/make --version -O >/dev/null 2>&1 || echo -O: Resource temporarily unavailable 
  2<      (%)
  1<    (%_make_output_sync)
  0<  (%make_build)
/usr/bin/make 
I: [iurt_root_command] ERROR: chroot