`cfg(doctest)` is experimental and subject to change

[sectorsize512]

I'm getting the following error when compiling the crate (as part of cargo build of my code):

error[E0658]: `cfg(doctest)` is experimental and subject to change
 --> /root/.cargo/registry/src/github.com-1ecc6299db9ec823/xml-rs-0.8.3/src/lib.rs:9:7
  |
9 | #[cfg(doctest)]
  |       ^^^^^^^
  |
  = note: for more information, see https://github.com/rust-lang/rust/issues/62210

error[E0658]: `cfg(doctest)` is experimental and subject to change
  --> /root/.cargo/registry/src/github.com-1ecc6299db9ec823/xml-rs-0.8.3/src/lib.rs:13:7
   |
13 | #[cfg(doctest)]
   |       ^^^^^^^
   |
   = note: for more information, see https://github.com/rust-lang/rust/issues/62210

Here is the version:

# rustc --version
rustc 1.39.0

Any idea what can be wrong?

[netvl]

@sectorsize512 it seems that your compiler is a bit old. This attribute has been stabilized in rustc 1.40: https://github.com/rust-lang/rust/commit/92df638162b7ccea6f97a8e1287ed05c5c0818b4

[sectorsize512]

Right, works with the latest compiler (1.44), thanks.

[jreindel]

Really new user to rust here. Seeing this error. I just used '''rustup update stable''' to go from something older (no idea what) to 1.52.1 but I'm still getting this error. Did a cargo clean. What am I missing? Should I be seeing this error if the issues was resolved with 1.40 and I just updated to 1.52.1?

[netvl]

Sorry, I'm not sure what could be wrong on your setup. Could it be that you use not the updated stable toolchain but some other, not yet updated?

[jreindel]

I got this resolved. I don't remember the exact step(s) to solution, but I found out I had installed, but not enabled the newest version. I don't recall what I did to get the correct version active.