`crate-type` is ignored - all targets built into a single binary

[Yury-Fridlyand]

A snippet from Cargo.toml

[lib]
crate-type = ["staticlib", "rlib"]

zigbuild build a single binary which includes all targets. zigbuild should have a command line argument to specify which crate to build and/or build all targets into multiple binaries.

cargo has the same issue (rust-lang/rust#55942 and rust-lang/rust#51009).

Is there a workaround in zig? (cargo has one)