error[E0658]: use of unstable library feature 'matches_macro'

[vielmetti]

Describe the bug

failed to compile gitui v0.2.5 on Ubuntu 20.04 on WSL 2

To Reproduce

run cargo install gitui

errors in the log:
error[E0658]: use of unstable library feature 'matches_macro'

Expected behavior

cargo install gitui should work as documented.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Windows 10 + WSL 2 + Ubuntu 20.04 LTS
• Version: gitui v0.2.5

Additional context
Add any other context about the problem here.

error[E0658]: use of unstable library feature 'matches_macro'
   --> /home/emv/.cargo/registry/src/github.com-1ecc6299db9ec823/gitui-0.2.5/src/components/changes.rs:140:17
    |
140 |                 matches!(tree_item.kind, FileTreeItemKind::Path(_));
    |                 ^^^^^^^
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/65721

error[E0658]: use of unstable library feature 'matches_macro'
   --> /home/emv/.cargo/registry/src/github.com-1ecc6299db9ec823/gitui-0.2.5/src/components/statustree.rs:199:12
    |
199 |         if matches!(item_kind,  FileTreeItemKind::Path(PathCollapsed(collapsed))
    |            ^^^^^^^
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/65721

error[E0658]: use of unstable library feature 'matches_macro'
   --> /home/emv/.cargo/registry/src/github.com-1ecc6299db9ec823/gitui-0.2.5/src/components/statustree.rs:217:12
    |
217 |         if matches!(item_kind, FileTreeItemKind::File(_))
    |            ^^^^^^^
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/65721

error[E0658]: use of unstable library feature 'matches_macro'
   --> /home/emv/.cargo/registry/src/github.com-1ecc6299db9ec823/gitui-0.2.5/src/components/statustree.rs:218:16
    |
218 |             || matches!(item_kind,FileTreeItemKind::Path(PathCollapsed(collapsed))
    |                ^^^^^^^
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/65721

error[E0658]: use of unstable library feature 'matches_macro'
   --> /home/emv/.cargo/registry/src/github.com-1ecc6299db9ec823/gitui-0.2.5/src/components/statustree.rs:226:19
    |
226 |         } else if matches!(item_kind,  FileTreeItemKind::Path(PathCollapsed(collapsed))
    |                   ^^^^^^^
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/65721

error[E0658]: use of unstable library feature 'matches_macro'
   --> /home/emv/.cargo/registry/src/github.com-1ecc6299db9ec823/gitui-0.2.5/src/components/statustree.rs:300:16
    |
300 |             if matches!(item_kind, FileTreeItemKind::Path(PathCollapsed(collapsed)) if collapsed)
    |                ^^^^^^^
    |
    = note: for more information, see https://github.com/rust-lang/rust/issues/65721

error: aborting due to 6 previous errors

For more information about this error, try `rustc --explain E0658`.
error: failed to compile `gitui v0.2.5`, intermediate artifacts can be found at `/tmp/cargo-install1l61u0`

Caused by:
  could not compile `gitui`.

[vielmetti]

Problem replicates on Ubuntu 20.04 on the Pi 4. Both report rustc 1.14.0 as the version.

[vielmetti]

The error message references rust-lang/rust#65721

[extrawurst]

yeah the min rust version is 1.42 - I should mention that in the readme. using rustup makes it super easy to install a more current version of rust.

[vielmetti]

Installed the current version using rustup and all is well.

(wow, that's an old version of rustc in Ubuntu 20.04)