[Refresh2020Q3][Bug][rethinkdb] - Download failure

[MindNumbing]

Running into an error while building rethinkdb.

The initial plan needs a new source, so see the modified plan file below. Current source isn't working.

+ error 'failed to download jemalloc from http://www.canonware.com/download/jemalloc/jemalloc-4.1.0.tar.bz2'
+ echo 'mk/support/pkg/pkg.sh: jemalloc: failed to download jemalloc from http://www.canonware.com/download/jemalloc/jemalloc-4.1.0.tar.bz2'
mk/support/pkg/pkg.sh: jemalloc: failed to download jemalloc from http://www.canonware.com/download/jemalloc/jemalloc-4.1.0.tar.bz2
+ exit 1

Full error log: ./build/external/jemalloc_4.1.0_fetch.log
make[1]: *** [mk/support/build.mk:51: external/jemalloc_4.1.0] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:53: make] Error 2
   rethinkdb: Build time: 7m43s
   rethinkdb: Exiting on error
Script done, file is /src/results/logs/rethinkdb.2020-09-28-103444.log

Modified plan file here
Full error log here