iter_copied error

[dvogt23]

I got following compile error:

[170/1118]   Compiling toml v0.5.4
error[E0658]: use of unstable library feature 'iter_copied' (see issue #57127)
   --> /home/dvogt/.cargo/registry/src/github.com-1ecc6299db9ec823/toml-0.5.4/src/de.rs:435:30
    |
435 |                             .copied()
    |                              ^^^^^^

error[E0658]: use of unstable library feature 'iter_copied' (see issue #57127)
   --> /home/dvogt/.cargo/registry/src/github.com-1ecc6299db9ec823/toml-0.5.4/src/de.rs:575:22
    |
575 |                     .copied()
    |                      ^^^^^^

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0658`.
error: Could not compile `toml`.

Actually i switch to the 0.4 version.

My version:

stable-x86_64-unknown-linux-gnu (default)
rustc 1.35.0 (3c235d560 2019-05-20)

[ehuss]

rustc 1.35.0 (3c235d560 2019-05-20)

I think the oldest version of rustc that works is 1.36. Can you update to a newer version?

[dvogt23]

With a newer version of rustc it works. Thanks. Also to @dunnock