如何在 Launchpad 中构建这个 Rust 程序？它无法构建

我正在尝试在 Launchpad 中构建冰棒（我从 GitHub 克隆了存储库，并尝试使用此包配方构建它），但构建失败。

这是构建日志的相关部分

dpkg-buildpackage: info: source package popsicle
dpkg-buildpackage: info: source version 1.1.0-0~202008031810~ubuntu20.04.1
dpkg-buildpackage: info: source distribution focal
 dpkg-source --before-build .
dpkg-buildpackage: info: host architecture amd64
 fakeroot debian/rules clean
dh clean
   debian/rules override_dh_auto_clean
make[1]: Entering directory '/<<PKGBUILDDIR>>'
make clean
make[2]: Entering directory '/<<PKGBUILDDIR>>'
cargo clean
make[2]: Leaving directory '/<<PKGBUILDDIR>>'
if ! ischroot; then \
    make vendor; \
fi
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
   dh_clean
 debian/rules build
dh build
   dh_update_autotools_config
   dh_auto_configure
   debian/rules override_dh_auto_build
make[1]: Entering directory '/<<PKGBUILDDIR>>'
env CARGO_HOME="$(pwd)/target/cargo" \
dh_auto_build
    make -j1
make[2]: Entering directory '/<<PKGBUILDDIR>>'
tar pxf vendor.tar
tar: vendor.tar: Cannot open: No such file or directory

这是完整的构建日志。

但是，当我尝试在我的 Kubuntu 18.04 机器上构建它时，我得到了

name@pc:~/popsicle$ debuild -us -uc
 dpkg-buildpackage -rfakeroot -us -uc -ui
dpkg-buildpackage: info: source package popsicle
dpkg-buildpackage: info: source version 1.1.0
dpkg-buildpackage: info: source distribution focal
dpkg-buildpackage: info: source changed by Ian Douglas Scott <[email protected]>
 dpkg-source --before-build popsicle
 fakeroot debian/rules clean
dh clean
   debian/rules override_dh_auto_clean
make[1]: Entering directory '/home/archisman/popsicle'
make clean
make[2]: Entering directory '/home/archisman/popsicle'
cargo clean
make[2]: Leaving directory '/home/archisman/popsicle'
if ! ischroot; then \
        make vendor; \
fi
make[2]: Entering directory '/home/archisman/popsicle'
mkdir -p .cargo
cargo vendor | head -n -1 > .cargo/config
    Updating crates.io index
 Downloading crates ...
  Downloaded bitflags v1.2.1

并且构建继续进行。

如何在 Launchpad 中构建它？