Problems for source package rust-grep-searcher

Malformed Build-Depends

Package declares a build time dependency on 'rustc:native <!nocheck>' which is broken Syntax.
Package declares a build time dependency on 'librust-encoding-rs-0.8+default-dev (>= 0.8.14-~~) <!nocheck>' which is broken Syntax.
Package declares a build time dependency on 'librust-log-0.4+default-dev (>= 0.4.5-~~) <!nocheck>' which is broken Syntax.
Package declares a build time dependency on 'librust-bytecount-0.5+runtime-dispatch-simd-dev <!nocheck>' which is broken Syntax.
Package declares a build time dependency on 'librust-memmap-0.7+default-dev <!nocheck> | librust-memmap-0.6+default-dev (>= 0.6.2-~~) <!nocheck>' which is broken Syntax.
Package declares a build time dependency on 'librust-memchr-2+default-dev (>= 2.1-~~) <!nocheck>' which is broken Syntax.
Package declares a build time dependency on 'librust-encoding-rs-io-0.1+default-dev (>= 0.1.4-~~) <!nocheck>' which is broken Syntax.
Package declares a build time dependency on 'librust-bytecount-0.5+default-dev <!nocheck>' which is broken Syntax.
Package declares a build time dependency on 'cargo:native <!nocheck>' which is broken Syntax.
Package declares a build time dependency on 'libstd-rust-dev <!nocheck>' which is broken Syntax.
Package declares a build time dependency on 'librust-grep-matcher-0.1+default-dev (>= 0.1.1-~~) <!nocheck>' which is broken Syntax.

Binary Package: librust-grep-searcher-dev (Version: 0.1.3-1)

Half Broken Relationships

Package has a Depends on librust-memmap-0.6+default-dev (>= 0.6.2-~~) which cannot be satisfied on i386. At least one of librust-memmap-0.7+default-dev | librust-memmap-0.6+default-dev (>= 0.6.2-~~) can be satisfied however.
Package has a Depends on librust-memmap-0.6+default-dev (>= 0.6.2-~~) which cannot be satisfied on mips64el. At least one of librust-memmap-0.7+default-dev | librust-memmap-0.6+default-dev (>= 0.6.2-~~) can be satisfied however.
Package has a Depends on librust-memmap-0.6+default-dev (>= 0.6.2-~~) which cannot be satisfied on mipsel. At least one of librust-memmap-0.7+default-dev | librust-memmap-0.6+default-dev (>= 0.6.2-~~) can be satisfied however.
Package has a Depends on librust-memmap-0.6+default-dev (>= 0.6.2-~~) which cannot be satisfied on s390x. At least one of librust-memmap-0.7+default-dev | librust-memmap-0.6+default-dev (>= 0.6.2-~~) can be satisfied however.
Package has a Depends on librust-memmap-0.6+default-dev (>= 0.6.2-~~) which cannot be satisfied on amd64. At least one of librust-memmap-0.7+default-dev | librust-memmap-0.6+default-dev (>= 0.6.2-~~) can be satisfied however.
Package has a Depends on librust-memmap-0.6+default-dev (>= 0.6.2-~~) which cannot be satisfied on armhf. At least one of librust-memmap-0.7+default-dev | librust-memmap-0.6+default-dev (>= 0.6.2-~~) can be satisfied however.
Package has a Depends on librust-memmap-0.6+default-dev (>= 0.6.2-~~) which cannot be satisfied on arm64. At least one of librust-memmap-0.7+default-dev | librust-memmap-0.6+default-dev (>= 0.6.2-~~) can be satisfied however.
Package has a Depends on librust-memmap-0.6+default-dev (>= 0.6.2-~~) which cannot be satisfied on armel. At least one of librust-memmap-0.7+default-dev | librust-memmap-0.6+default-dev (>= 0.6.2-~~) can be satisfied however.
Package has a Depends on librust-memmap-0.6+default-dev (>= 0.6.2-~~) which cannot be satisfied on mips. At least one of librust-memmap-0.7+default-dev | librust-memmap-0.6+default-dev (>= 0.6.2-~~) can be satisfied however.
Package has a Depends on librust-memmap-0.6+default-dev (>= 0.6.2-~~) which cannot be satisfied on ppc64el. At least one of librust-memmap-0.7+default-dev | librust-memmap-0.6+default-dev (>= 0.6.2-~~) can be satisfied however.