Problems for source package rust-x11

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.
Package declares a build time dependency on 'librust-pkg-config-0.3+default-dev (>= 0.3.8~~) ' which is broken Syntax.
Package declares a build time dependency on 'libstd-rust-dev ' which is broken Syntax.
Package declares a build time dependency on 'libx11-dev ' which is broken Syntax.
Package declares a build time dependency on 'librust-libc-0.2+default-dev ' which is broken Syntax.

Binary Package: librust-x11-dev (Version: 2.18.1-1+b1)

Relationships

Package has a Depends on librust-pkg-config-0.3+default-dev (>= 0.3.8~~) which cannot be satisfied on mipsel.
Package has a Depends on librust-pkg-config-0.3+default-dev (>= 0.3.8~~) which cannot be satisfied on mips64el.
Package has a Depends on librust-pkg-config-0.3+default-dev (>= 0.3.8~~) which cannot be satisfied on i386.
Package has a Depends on librust-pkg-config-0.3+default-dev (>= 0.3.8~~) which cannot be satisfied on s390x.
Package has a Depends on librust-pkg-config-0.3+default-dev (>= 0.3.8~~) which cannot be satisfied on amd64.
Package has a Depends on librust-pkg-config-0.3+default-dev (>= 0.3.8~~) which cannot be satisfied on armel.
Package has a Depends on librust-pkg-config-0.3+default-dev (>= 0.3.8~~) which cannot be satisfied on arm64.
Package has a Depends on librust-pkg-config-0.3+default-dev (>= 0.3.8~~) which cannot be satisfied on armhf.
Package has a Depends on librust-pkg-config-0.3+default-dev (>= 0.3.8~~) which cannot be satisfied on ppc64el.
Package has a Depends on librust-libc-0.2+default-dev which cannot be satisfied on mips64el.
Package has a Depends on librust-libc-0.2+default-dev which cannot be satisfied on mipsel.
Package has a Depends on librust-libc-0.2+default-dev which cannot be satisfied on i386.
Package has a Depends on librust-libc-0.2+default-dev which cannot be satisfied on s390x.
Package has a Depends on librust-libc-0.2+default-dev which cannot be satisfied on amd64.
Package has a Depends on librust-libc-0.2+default-dev which cannot be satisfied on arm64.
Package has a Depends on librust-libc-0.2+default-dev which cannot be satisfied on armel.
Package has a Depends on librust-libc-0.2+default-dev which cannot be satisfied on armhf.
Package has a Depends on librust-libc-0.2+default-dev which cannot be satisfied on ppc64el.