error when compiling with --allow warnings and --target wasm32-unknown-unknown

[dakom]

When I set RUSTFLAGS="--allow warnings" and try to cargo build --target wasm32-unknown-unknown I get the following error:

error: output of --print=file-names has changed in the compiler, cannot parse
command was: `rustc - --crate-name ___ --print=file-names --allow warnings --target wasm32-unknown-unknown --crate-type bin --crate-type rlib --crate-type dylib --crate-type cdylib --crate-type staticlib --crate-type proc-macro --print=sysroot --print=cfg`

rustc 1.43.0-nightly (564758c 2020-03-08)
cargo 1.43.0-nightly (bda50510d 2020-03-02)

[dakom]

Workaround in the meantime is to add quiet feature and #![cfg_attr(feature = "quiet", allow(warnings))]

[jonas-schievink]

Cargo looks for these strings in the output, which you've disabled:

warning: dropping unsupported crate type `dylib` for target `wasm32-unknown-unknown`

warning: dropping unsupported crate type `proc-macro` for target `wasm32-unknown-unknown`

Closing since this is an issue with Cargo.