Repro for nix-prefetch-git error

repro.sh

bwrap \
  --dev /dev \
  --proc /proc \
  --clearenv \
  --new-session \
  --tmpfs /tmp \
  --setenv TMPDIR /tmp \
  --setenv USER user \
  --tmpfs /homeless-shelter \
  --setenv HOME /homeless-shelter \
  --setenv NIX_PATH $'nixpkgs=/bootstrap-nixpkgs' \
  --unshare-pid \
  --ro-bind /nix/store /nix/store \
  --ro-bind $(nix eval nixpkgs#pkgs.path) /bootstrap-nixpkgs \
  --ro-bind $(nix build nixpkgs#coreutils --json | jq -r '.[0].outputs.out')/bin /bin \
  --ro-bind $(nix build nixpkgs#nix-prefetch-git --json | jq -r '.[0].outputs.out')/bin /bin2 \
  --ro-bind $(nix build nixpkgs#cacert --json | jq -r '.[0].outputs.out')/etc/ssl/certs/ca-bundle.crt /etc/ssl/certs/ca-certificates.crt \
  --setenv PATH /bin:/bin2 \
  --setenv NIX_SSL_CERT_FILE /etc/ssl/certs/ca-certificates.crt \
  --setenv CURL_CA_BUNDLE /etc/ssl/certs/ca-certificates.crt \
  --ro-bind /etc/resolv.conf /etc/resolv.conf nix-prefetch-git \
  --rev 1f47a0710bfe94273c060452d753e19a94f6975d $'https://github.com/codedownio/codedown-languages.git'