Problems for source package rust-chrono-tz

BuildDepends

Package declares a build time dependency on librust-chrono-tz-build-0.4+default-dev <!nocheck> which cannot be satisfied on mips64el. Package rust-chrono-tz does not exist on mips64el.
Package declares a build time dependency on librust-chrono-tz-build-0.4+default-dev <!nocheck> which cannot be satisfied on armel. Package rust-chrono-tz does not exist on armel.
Package declares a build time dependency on librust-phf-0.11-dev <!nocheck> which cannot be satisfied on armel. Package rust-chrono-tz does not exist on armel.
Package declares a build time dependency on librust-phf-0.11-dev <!nocheck> which cannot be satisfied on mips64el. Package rust-chrono-tz does not exist on mips64el.
Package declares a build time dependency on librust-chrono-0.4-dev (>= 0.4.25-~~) <!nocheck> which cannot be satisfied on armel. Package rust-chrono-tz does not exist on armel.
Package declares a build time dependency on librust-chrono-0.4-dev (>= 0.4.25-~~) <!nocheck> which cannot be satisfied on mips64el. Package rust-chrono-tz does not exist on mips64el.
Package declares a build time dependency on debhelper-compat (= 13) which cannot be satisfied on mips64el. Package rust-chrono-tz does not exist on mips64el.
Package declares a build time dependency on debhelper-compat (= 13) which cannot be satisfied on armel. Package rust-chrono-tz does not exist on armel.
Package declares a build time dependency on dh-sequence-cargo which cannot be satisfied on armel. Package rust-chrono-tz does not exist on armel.
Package declares a build time dependency on dh-sequence-cargo which cannot be satisfied on mips64el. Package rust-chrono-tz does not exist on mips64el.
Package declares a build time dependency on libstd-rust-dev <!nocheck> which cannot be satisfied on armel. Package rust-chrono-tz does not exist on armel.
Package declares a build time dependency on libstd-rust-dev <!nocheck> which cannot be satisfied on mips64el. Package rust-chrono-tz 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 (>= 1.60) <!nocheck>' which is broken Syntax.