Not able to build sage from source

[Devansh Srivastava]

I was working on an  issue on sagemath and have submitted a PR for that 
but now I am not able to build sage from

Also the PR right now is failing almost all the different builds fail but this was not the issue 2 days ago
right now whenever i run make 
I am getting the following
The following package(s) may have failed to build (not necessarily
during this run of 'make all-start'):
* package:         brial-1.2.8
  last build time: Mar 3 14:32
  log file:        SAGE_ROOT/logs/pkgs/brial-1.2.8.log
  build directory: SAGE_ROOT/local/var/tmp/sage/build/brial-1.2.8
* package:         sagelib-10.6.beta9
  last build time: Mar 24 13:16
  log file:        SAGE_ROOT/logs/pkgs/sagelib-10.6.beta9.log
* package:         sage_conf-10.6.beta9
  last build time: Mar 24 13:16
  log file:        SAGE_ROOT/logs/pkgs/sage_conf-10.6.beta9.log
* package:         sagemath_doc_html-none
  last build time: Mar 24 17:48
  log file:        SAGE_ROOT/logs/pkgs/sagemath_doc_html-none.log
  build directory: SAGE_ROOT/local/var/tmp/sage/build/sagemath_doc_html-none
I am using conda to build sage and it was working pretty well before the last merge that happened 2 days ago
I thing the build is failing because of cascading errors caused by this
I have also shared the log file for brial.log with you guys

[Dima Pasechnik]

Your brial log is from 3 march, it's most probably not the problem you have.

Try to update your conda install and clean up the Sage installation before trying to rebuild by
removing all built artefacts
(careful: this will also remove all uncommitted changes/files in the repo!)

git clean -fdx