Cannot add to rustc 'tokio_unstable" flag in cargo.toml

1

I'm trying to add the following flag to cargo.toml

[build]
rustflags = ["--cfg", "tokio_unstable"]

Alas, that doesn't have any effect. I still get the error when trying to run my app:

task tracing requires Tokio to be built with RUSTFLAGS="--cfg tokio_unstable"

Any help greately appreciated.

2

I think you want .cargo/config.toml, not Cargo.toml.

1 Like
3

Thank you

4

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