Error in Debian build

[fact0real]

hi all,
I have problem in building the latest version of SageMath in Debian, please see log and help me to resolve it.
You can see the detailed log in attachment file too.

[dochtml] [website  ] building [html]: targets for 1 source files that are out of date
[dochtml] [website  ] updating environment: 1 added, 0 changed, 0 removed
[dochtml] [website  ] Merging environment/index files...
[dochtml] [website  ] ... done (0 todos, 1 index, 0 citations, 0 modules)
[dochtml] [website  ] Merging js index files...
[dochtml] [website  ] ... done (7 js index entries)
[dochtml] [website  ] The HTML pages are in local/share/doc/sage/html/en/website.
[dochtml] Build finished. The built documents can be found in /home/factoreal/Downloads/SageMath/local/share/doc/sage/html/en/website
[dochtml] Error building the documentation.
[dochtml] Traceback (most recent call last):
[dochtml]   File "/home/factoreal/Downloads/SageMath/local/lib/python2.7/runpy.py", line 174, in _run_module_as_main
[dochtml]     "__main__", fname, loader, pkg_name)
[dochtml]   File "/home/factoreal/Downloads/SageMath/local/lib/python2.7/runpy.py", line 72, in _run_code
[dochtml]     exec code in run_globals
[dochtml]   File "/home/factoreal/Downloads/SageMath/local/lib/python2.7/site-packages/sage_setup/docbuild/__main__.py", line 2, in <module>
[dochtml]     main()
[dochtml]   File "/home/factoreal/Downloads/SageMath/local/lib/python2.7/site-packages/sage_setup/docbuild/__init__.py", line 1690, in main
[dochtml]     builder()
[dochtml]   File "/home/factoreal/Downloads/SageMath/local/lib/python2.7/site-packages/sage_setup/docbuild/__init__.py", line 336, in _wrapper
[dochtml]     build_many(build_other_doc, L)
[dochtml]   File "/home/factoreal/Downloads/SageMath/local/lib/python2.7/site-packages/sage_setup/docbuild/__init__.py", line 280, in build_many
[dochtml]     _build_many(target, args, processes=NUM_THREADS)
[dochtml]   File "/home/factoreal/Downloads/SageMath/local/lib/python2.7/site-packages/sage_setup/docbuild/utils.py", line 283, in build_many
[dochtml]     raise worker_exc.original_exception
[dochtml] OSError: [Errno 17] File exists: '/home/factoreal/Downloads/SageMath/local/share/doc/sage/html/en/website/../_static'
[dochtml] 
[dochtml]     Note: incremental documentation builds sometimes cause spurious
[dochtml]     error messages. To be certain that these are real errors, run
[dochtml]     "make doc-clean" first and try again.
make[3]: *** [Makefile:2037: doc-html] Error 1
make[3]: Leaving directory '/home/factoreal/Downloads/SageMath/build/make'
make[2]: *** [Makefile:1848: all-start] Error 2
make[2]: Leaving directory '/home/factoreal/Downloads/SageMath/build/make'

real	20m35.632s
user	19m4.166s
sys	0m41.575s
***************************************************************
Error building Sage.

The following package(s) may have failed to build (not necessarily
during this run of 'make all-start'):

* package: r-3.6.1
  log file: /home/factoreal/Downloads/SageMath/logs/pkgs/r-3.6.1.log
  build directory: /home/factoreal/Downloads/SageMath/local/var/tmp/sage/build/r-3.6.1

* documentation: dochtml
  log file: /home/factoreal/Downloads/SageMath/logs/pkgs/../dochtml.log

The build directory may contain configuration files and other potentially
helpful information. WARNING: if you now run 'make' again, the build
directory will, by default, be deleted. Set the environment variable
SAGE_KEEP_BUILT_SPKGS to 'yes' to prevent this.

make[1]: *** [Makefile:33: all-start] Error 1
make[1]: Leaving directory '/home/factoreal/Downloads/SageMath'
make: *** [Makefile:13: all] Error 2

Component: build

Keywords: build error

Reviewer: Marc Mezzarobba

Issue created by migration from https://trac.sagemath.org/ticket/28483

[fact0real]

make log file

[sagetrac-tmonteil]

comment:1

Attachment: sage_build.log

Did you try make doc-clean as suggested ?

[fact0real]

comment:2

Hey,
exactly got the same result.

[embray]

comment:3

What if you set SAGE_NUM_THREADS=1 in your environment?

[mkoeppe]

comment:6

outdated, should close

[mezzarobba]

Reviewer: Marc Mezzarobba