Running cargo test errors with "please recompile that crate using this compiler"

Question

My Cargo.toml file looks like this:

[dependencies]
unicode-segmentation = "1.10.0"

[package]
edition = "2021"
name = "reverse_string"
version = "1.2.0"

There is a dependency of unicode-segmentation.

I am using rustc 1.64 and when I run cargo test, I get this error:

help: please recompile that crate using this compiler (rustc 1.62.1) (consider running cargo clean first) = note: the following crate versions were found: crate unicode_segmentation compiled by rustc 1.64.0

I created an empty project with the same `Cargo.toml` and didn't have any issues. Either this isn't the whole problem and your code does something weird, or this was a one time compiler fluke. Did running `cargo clean` helped? — Aleksander Krauze, Oct 31 '22 at 13:17
Also you didn't show error message (and the code that caused it), but only the "help" part of it. Show these as well to help us better understand the problem. — Aleksander Krauze, Oct 31 '22 at 13:21

score -1 · Answer 1 · answered Oct 28 '22 at 12:55

-1

I had this problem on a mac and I had installed rust with both brew and rustup. I uninstalled the brew version.

brew uninstall rust

answered Oct 28 '22 at 12:55

endonym

3
2

there is only 1 rust. When I run `where rustc` or `where cargo` they both point to 1 location and I never installed rust with cargo – dagda1 Oct 29 '22 at 12:10

Running cargo test errors with "please recompile that crate using this compiler"

1 Answers1