Problems for source package rust-cargo-outdated

BuildDepends

Package declares a build time dependency on librust-cargo-0.57+default-dev which cannot be satisfied on mips64el. Package rust-cargo-outdated does not exist on mips64el.
Package declares a build time dependency on librust-cargo-0.57+default-dev which cannot be satisfied on i386. Package rust-cargo-outdated does not exist on i386.
Package declares a build time dependency on librust-cargo-0.57+default-dev which cannot be satisfied on arm64. Package rust-cargo-outdated does not exist on arm64.
Package declares a build time dependency on librust-cargo-0.57+default-dev which cannot be satisfied on armel. Package rust-cargo-outdated does not exist on armel.
Package declares a build time dependency on librust-cargo-0.57+default-dev which cannot be satisfied on amd64. Package rust-cargo-outdated does not exist on amd64.
Package declares a build time dependency on librust-cargo-0.57+default-dev which cannot be satisfied on s390x. Package rust-cargo-outdated does not exist on s390x.
Package declares a build time dependency on librust-cargo-0.57+default-dev which cannot be satisfied on armhf. Package rust-cargo-outdated does not exist on armhf.
Package declares a build time dependency on librust-cargo-0.57+default-dev which cannot be satisfied on mipsel. Package rust-cargo-outdated does not exist on mipsel.
Package declares a build time dependency on librust-cargo-0.57+default-dev which cannot be satisfied on ppc64el. Package rust-cargo-outdated does not exist on ppc64el.

Malformed Build-Depends

Package declares a build time dependency on 'rustc:native' which is broken Syntax.
Package declares a build time dependency on 'cargo:native' which is broken Syntax.