dsf2flac bulid error

:: Checking dsf2flac-git integrity...
==> Making package: dsf2flac-git r29.b0cf5aa-3 (Sun Aug  1 05:39:14 2021)
==> Retrieving sources...
  -> Cloning dsf2flac git repo...
Cloning into bare repository '/home/kfgz/.cache/pacaur/dsf2flac-git/dsf2flac'...
remote: Enumerating objects: 247, done.
remote: Counting objects: 100% (6/6), done.
remote: Compressing objects: 100% (5/5), done.
remote: Total 247 (delta 1), reused 5 (delta 1), pack-reused 241
Receiving objects: 100% (247/247), 583.17 KiB | 4.20 MiB/s, done.
Resolving deltas: 100% (124/124), done.
  -> Downloading dsf2flac-fix-build-with-boost-1.76.patch...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  1439  100  1439    0     0  16153      0 --:--:-- --:--:-- --:--:-- 16168
==> Validating source files with sha256sums...
    dsf2flac ... Skipped
    dsf2flac-fix-build-with-boost-1.76.patch ... Passed
:: Preparing dsf2flac-git...
==> Making package: dsf2flac-git r29.b0cf5aa-3 (Sun Aug  1 05:39:18 2021)
==> WARNING: Skipping dependency checks.
==> Retrieving sources...
  -> Updating dsf2flac git repo...
Fetching origin
  -> Found dsf2flac-fix-build-with-boost-1.76.patch
==> WARNING: Skipping all source file integrity checks.
==> Extracting sources...
  -> Creating working copy of dsf2flac git repo...
Cloning into 'dsf2flac'...
done.
==> Starting prepare()...
patching file src/fstream_plus.cpp
Reversed (or previously applied) patch detected!  Skipping patch.
1 out of 1 hunk ignored -- saving rejects to file src/fstream_plus.cpp.rej
patching file src/fstream_plus.h
Reversed (or previously applied) patch detected!  Skipping patch.
1 out of 1 hunk ignored -- saving rejects to file src/fstream_plus.h.rej
==> ERROR: A failure occurred in prepare().
    Aborting...
:: failed to verify integrity or prepare dsf2flac-git package