Extra arguments message with sqlx prepare

[eweb101]

I'm getting an error message when running cargo sqlx prepare saying extra arguments to rustc can only be passed to one target. Create database and migrate both work with Postgres, but I can't passed the error when running prepare.

Any ideas on what is causing the error?

$ cargo sqlx prepare
error: extra arguments to rustc can only be passed to one target, consider filtering
the package by passing, e.g., --lib or --bin NAME to specify a single target
error: cargo check failed with status: exit code: 101

[abonander]

Are you using rustup? cargo sqlx prepare was coded with that assumption.

[eweb101]

I'm using rustup to keep rustc (stable) up to date. Is there something else I need to be doing with it?

[abonander]

It depends on if you're using rustup's symlinks in ~/.cargo/bin or directly invoking the installed cargo/rustc.

[eweb101]

"which rustc" shows: ~/.cargo/bin/rustc

Also: "~/.cargo/bin/cargo sqlx prepare" gives me the same error about extra arguments.

[abonander]

What's your default toolchain for the folder you're trying to run it in?

[eweb101]

stable-x86_64-unknown-linux-gnu (default)

[abonander]

What Rust release is that?

[eweb101]

rustc 1.45.2 (d3fb005a3 2020-07-31)

[eweb101]

I have both main.rs and lib.rs in my src directory. If I remove main.rs the cargo error goes away.

[abonander]

@eweb101 yeah sorry, I had a brainfart before but I just ran into this in a work project. The problem is that cargo rustc won't build both the library and the binary together; if you don't have any macro invocations in main.rs then do cargo sqlx prepare -- --lib.

[abonander]

We could fix this on our side by running cargo rustc --lib then one for each binary target we find in cargo metadata.