Compilation of ad from cloned github project with cargo (or running cargo install ad-editor) fails with "error[E0658]: use of unstable library feature 'iter_repeat_n'" 7 times

[Drake42]

Versions & OS Details

• ad Version [point version from crates.io or hash of develop]
• OS: [e.g. linux/bsd]
• Distribution [e.g. Ubuntu/Arch]
• OS Version [e.g. 24.04 LTS]

ad (and ad-editor) v0.3.0 and v0.3.1
macOS
cargo crate and cloning github project
cargo 1.80.0
macOS Sequoia 15.3.1

Describe the bug

Neither running cargo install ad-editor, or cloning the github project to my machine and running cargo install --path . work. The compilation error is error[E0658]: use of unstable library feature 'iter_repeat_n'. This error occurs 7 times, and compilation fails.

This issue occurred for ad (and ad-editor) v0.3.0, as well as v0.3.1

...

To Reproduce

Steps to reproduce the behavior:

1. Run cargo install ad-editor
   OR
2. run git clone https://github.com/sminez/ad.git
3. cd ad
4. cargo install --path .

Expected behavior

Compiling fails with these errors:

_error[E0658]: use of unstable library feature 'iter_repeat_n'
--> src/ts.rs:31:12
|
31 | iter::{repeat_n, Peekable},
| ^^^^^^^^
|
= note: see issue #104434 rust-lang/rust#104434 for more information

error[E0658]: use of unstable library feature 'iter_repeat_n'
--> src/ts.rs:182:36
|
182 | buf.extend(repeat_n(' ', indent * 2));
| ^^^^^^^^
|
= note: see issue #104434 rust-lang/rust#104434 for more information

error[E0658]: use of unstable library feature 'iter_repeat_n'
--> src/ts.rs:190:28
|
190 | buf.extend(repeat_n(' ', indent * 2));
| ^^^^^^^^
|
= note: see issue #104434 rust-lang/rust#104434 for more information

error[E0658]: use of unstable library feature 'iter_repeat_n'
--> src/ui/tui.rs:29:12
|
29 | iter::{repeat_n, Peekable},
| ^^^^^^^^
|
= note: see issue #104434 rust-lang/rust#104434 for more information

error[E0658]: use of unstable library feature 'iter_repeat_n'
--> src/ui/tui.rs:688:20
|
688 | buf.extend(repeat_n(' ', n));
| ^^^^^^^^
|
= note: see issue #104434 rust-lang/rust#104434 for more information

error[E0658]: use of unstable library feature 'iter_repeat_n'
--> src/ui/tui.rs:707:28
|
707 | buf.extend(repeat_n(' ', tabstop));
| ^^^^^^^^
|
= note: see issue #104434 rust-lang/rust#104434 for more information

error[E0658]: use of unstable library feature 'iter_repeat_n'
--> src/ui/tui.rs:779:20
|
779 | buf.extend(repeat_n(' ', max_cols - cols));
| ^^^^^^^^
|
= note: see issue #104434 rust-lang/rust#104434 for more information

For more information about this error, try rustc --explain E0658.
error: could not compile ad-editor (lib) due to 7 previous errors
error: failed to compile `ad-editor v0.3.1_

...

Screenshots

If applicable, add screenshots to help explain your problem.

Additional context

[sminez]

I've not got an msrv set for this project so I'm afraid that this is simply a case of your compiler being out of date: you are on 1.80 and the most recent compiler version is now 1.85. If you update to at least 1.82 the project will compile just fine: https://dev-doc.rust-lang.org/stable/std/iter/fn.repeat_n.html

[sminez]

For future reference, I run CI for the current stable, beta and nightly compilers and ensure that the releases are compiling correctly against them when the crate is published. As a binary, particularly one with clear warnings about its lack of current stability, I am not aiming to support compilers older than the current stable release.