Problems for source package rust-rustfilt

BuildDepends

Package declares a build time dependency on librust-clap-2+wrap-help-dev (>= 2.21.1-~~) which cannot be satisfied on armel. Package rust-rustfilt does not exist on armel.
Package declares a build time dependency on librust-clap-2+wrap-help-dev (>= 2.21.1-~~) which cannot be satisfied on mips64el. Package rust-rustfilt does not exist on mips64el.
Package declares a build time dependency on debhelper (>= 12) which cannot be satisfied on armel. Package rust-rustfilt does not exist on armel.
Package declares a build time dependency on debhelper (>= 12) which cannot be satisfied on mips64el. Package rust-rustfilt does not exist on mips64el.
Package declares a build time dependency on librust-rustc-demangle-0.1+default-dev (>= 0.1.4-~~) which cannot be satisfied on armel. Package rust-rustfilt does not exist on armel.
Package declares a build time dependency on librust-rustc-demangle-0.1+default-dev (>= 0.1.4-~~) which cannot be satisfied on mips64el. Package rust-rustfilt does not exist on mips64el.
Package declares a build time dependency on librust-lazy-static-1+default-dev which cannot be satisfied on mips64el. Package rust-rustfilt does not exist on mips64el.
Package declares a build time dependency on librust-lazy-static-1+default-dev which cannot be satisfied on armel. Package rust-rustfilt does not exist on armel.
Package declares a build time dependency on librust-regex-1+default-dev which cannot be satisfied on armel. Package rust-rustfilt does not exist on armel.
Package declares a build time dependency on librust-regex-1+default-dev which cannot be satisfied on mips64el. Package rust-rustfilt does not exist on mips64el.
Package declares a build time dependency on dh-cargo (>= 25) which cannot be satisfied on mips64el. Package rust-rustfilt does not exist on mips64el.
Package declares a build time dependency on dh-cargo (>= 25) which cannot be satisfied on armel. Package rust-rustfilt does not exist on armel.
Package declares a build time dependency on libstd-rust-dev which cannot be satisfied on mips64el. Package rust-rustfilt does not exist on mips64el.
Package declares a build time dependency on libstd-rust-dev which cannot be satisfied on armel. Package rust-rustfilt does not exist on armel.
Package declares a build time dependency on help2man which cannot be satisfied on armel. Package rust-rustfilt does not exist on armel.
Package declares a build time dependency on help2man which cannot be satisfied on mips64el. Package rust-rustfilt does not exist on mips64el.

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.