Got file not found error when building challenge_bypass_ristretto

Latest attempt to build Brave from source (latest master branch) results in an error. I am following this guide https://github.com/brave/brave-browser/wiki to do a Release build. This is the error I get:

building brave...
gn gen /disk-2/dev/brave-browser/src/out/Release --args="safe_browsing_mode=1 root_extra_deps=[\"//brave\"] is_component_build=false proprietary_codecs=true ffmpeg_branding=\"Chrome\" enable_nacl=false enable_widevine=true target_cpu=\"x64\" is_official_build=true is_debug=false dcheck_always_on=false brave_channel=\"\" google_api_key=\"AIzaSyAH90V94EcZBP5oH7oc-mXQrSKgASVxER8\" brave_google_api_key=\"AIzaSyAQfxPJiounkhOjODEO5ZieffeBv6yft2Q\" brave_google_api_endpoint=\"https://www.googleapis.com/geolocation/v1/geolocate?key=\" brave_product_name=\"Brave\" brave_project_name=\"brave\" brave_version_major=\"0\" brave_version_minor=\"63\" brave_version_build=\"0\" chrome_version_string=\"73.0.3683.39\" chrome_version_major=\"73\" safebrowsing_api_endpoint=\"safebrowsing.brave.com\" brave_referrals_api_key=\"\" enable_hangout_services_extension=true cc_wrapper=\"/disk-2/dev/brave-browser/src/brave/script/redirect-cc.py\" "
Done. Made 11823 targets from 1949 files in 2636ms
ninja -C /disk-2/dev/brave-browser/src/out/Release brave -k 1
ninja: Entering directory `/disk-2/dev/brave-browser/src/out/Release'
[680/19788] ACTION //brave/vendor/challenge_bypass_ristretto_ffi:challenge_bypass_ristretto(//build/toolchain/linux:clang_x64)
FAILED: gen/challenge_bypass_ristretto/out/x86_64-unknown-linux-gnu/release/libchallenge_bypass_ristretto.a 
python ../../brave/script/cargo.py --rustup_home=../../brave/build/rustup/ --cargo_home=../../brave/build/rustup/ --manifest_path=../../brave/vendor/challenge_bypass_ristretto_ffi/Cargo.toml --build_path=gen/challenge_bypass_ristretto/out --target=x86_64-unknown-linux-gnu --is_debug=false --rust_flags=
Traceback (most recent call last):
  File "../../brave/script/cargo.py", line 104, in <module>
    sys.exit(main())
  File "../../brave/script/cargo.py", line 16, in main
    build(parse_args())
  File "../../brave/script/cargo.py", line 81, in build
    subprocess.check_call(cargo_args, env=env)
  File "/usr/lib/python2.7/subprocess.py", line 181, in check_call
    retcode = call(*popenargs, **kwargs)
  File "/usr/lib/python2.7/subprocess.py", line 168, in call
    return Popen(*popenargs, **kwargs).wait()
  File "/usr/lib/python2.7/subprocess.py", line 390, in __init__
    errread, errwrite)
  File "/usr/lib/python2.7/subprocess.py", line 1024, in _execute_child
    raise child_exception
OSError: [Errno 2] No such file or directory
[689/19788] ACTION //brave/components/brave_webtorrent/extension:generate_brave_webtorrent(//build/toolchain/linux:clang_x64)
ninja: build stopped: subcommand failed.
null
null
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! brave@0.63.0 build: `node ./scripts/commands.js build "Release"`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the brave@0.63.0 build script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/valera/.npm/_logs/2019-02-24T17_39_27_360Z-debug.log

My system:

PRETTY_NAME="Debian GNU/Linux 9 (stretch)"
NAME="Debian GNU/Linux"
VERSION_ID="9"
VERSION="9 (stretch)"
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"

Linux debian 4.9.0-8-amd64 #1 SMP Debian 4.9.144-3.1 (2019-02-19) x86_64 GNU/Linux

$ python --version
Python 2.7.13

$ python3 --version
Python 3.5.3

$ gcc --version
gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

$ node --version
v10.15.1

[bsclifton]

@valera-rozuvan can you check out this edit by @jumde? Hope this helps capture it 😄 https://github.com/brave/brave-browser/wiki/Home/_compare/e99b09e6a68a4b5ad79cb4f690f1ef144657b8a0...f3f38ac38ce061ea83b22086a536fb96b4f8bcf0

Updated page at: https://github.com/brave/brave-browser/wiki#troubleshooting

[bsclifton]

@valera-rozuvan awesome 😄 You may be able to edit the wiki, if there are specific steps you found that would help others (if not, let us know and we can update for you)

I’ll close as this seems to be resolved!

edit: thanks @jumde for the assist! 😄