Problems for source package rust-cargo-config2

BuildDepends

Package declares a build time dependency on librust-home-0.5+default-dev <!nocheck> which cannot be satisfied on armel. Package rust-cargo-config2 does not exist on armel.
Package declares a build time dependency on librust-home-0.5+default-dev <!nocheck> which cannot be satisfied on mips64el. Package rust-cargo-config2 does not exist on mips64el.
Package declares a build time dependency on debhelper (>= 12) which cannot be satisfied on armel. Package rust-cargo-config2 does not exist on armel.
Package declares a build time dependency on debhelper (>= 12) which cannot be satisfied on mips64el. Package rust-cargo-config2 does not exist on mips64el.
Package declares a build time dependency on librust-serde-derive-1+default-dev (>= 1.0.165-~~) <!nocheck> which cannot be satisfied on armel. Package rust-cargo-config2 does not exist on armel.
Package declares a build time dependency on librust-serde-derive-1+default-dev (>= 1.0.165-~~) <!nocheck> which cannot be satisfied on mips64el. Package rust-cargo-config2 does not exist on mips64el.
Package declares a build time dependency on libstd-rust-dev <!nocheck> which cannot be satisfied on mips64el. Package rust-cargo-config2 does not exist on mips64el.
Package declares a build time dependency on libstd-rust-dev <!nocheck> which cannot be satisfied on armel. Package rust-cargo-config2 does not exist on armel.
Package declares a build time dependency on librust-toml-edit-0+serde-dev (>= 0.21-~~) <!nocheck> which cannot be satisfied on mips64el. Package rust-cargo-config2 does not exist on mips64el.
Package declares a build time dependency on librust-toml-edit-0+serde-dev (>= 0.21-~~) <!nocheck> which cannot be satisfied on armel. Package rust-cargo-config2 does not exist on armel.
Package declares a build time dependency on dh-cargo (>= 25) which cannot be satisfied on mips64el. Package rust-cargo-config2 does not exist on mips64el.
Package declares a build time dependency on dh-cargo (>= 25) which cannot be satisfied on armel. Package rust-cargo-config2 does not exist on armel.
Package declares a build time dependency on librust-toml-edit-0+parse-dev (>= 0.21-~~) <!nocheck> which cannot be satisfied on mips64el. Package rust-cargo-config2 does not exist on mips64el.
Package declares a build time dependency on librust-toml-edit-0+parse-dev (>= 0.21-~~) <!nocheck> which cannot be satisfied on armel. Package rust-cargo-config2 does not exist on armel.
Package declares a build time dependency on librust-serde-1+default-dev (>= 1.0.165-~~) <!nocheck> which cannot be satisfied on armel. Package rust-cargo-config2 does not exist on armel.
Package declares a build time dependency on librust-serde-1+default-dev (>= 1.0.165-~~) <!nocheck> which cannot be satisfied on mips64el. Package rust-cargo-config2 does not exist on mips64el.

Malformed Build-Depends

Package declares a build time dependency on 'cargo:native <!nocheck>' which is broken Syntax.
Package declares a build time dependency on 'rustc:native (>= 1.70) <!nocheck>' which is broken Syntax.