dh-rust - 0.0.11 main

dh-rust provides a debhelper buildsystem to build Rust code.
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This builds and tests binaries and libraries from rust crates,
the latter installed as source code below /usr/share/cargo/registry.
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Feature highlights, compared to dh-cargo:
* supports workspace (i.e. multi-crate project)
* allows overriding CARGO_HOME
* installs crate contents using "cargo package"
* can use debian/Cargo.lock or Cargo.lock during build
* uses crates below debian/vendorlibs when available
* builds in make target dh_auto_build (not dh_auto_test)