i3-back: fix build on current version (#461889)

    hash = "sha256-xGfX7ttWrcIVhy+MkR5RZr2DCAwIKwGu7zkafHcrjaE=";

  };

  # The tool needs a nightly compiler.

  RUSTC_BOOTSTRAP = 1;

  patches = [

    # `let_chain` feature is not needed anymore with 1.90.

    # See https://github.com/Cretezy/i3-back/pull/5

    ./remove-feature.patch

  ];

  cargoHash = "sha256-o/um/Ugm3GfDz1daBKxoDD7ailUu6QJ0rj5jcKWB0lM=";

diff --git a/Cargo.toml b/Cargo.toml

index 68cbda32f3..0e3f6ad1f6 100644

--- a/Cargo.toml

+++ b/Cargo.toml

@@ -1,7 +1,7 @@

 [package]

 name = "i3-back"

 version = "0.3.2"

-edition = "2021"

+edition = "2024"

 description = "An i3/Sway utility to switch focus to your last focused window. Allows for behavior similar to Alt+Tab on other desktop environments."

 repository = "https://github.com/Cretezy/i3-back"

 homepage = "https://github.com/Cretezy/i3-back"

diff --git a/src/main.rs b/src/main.rs

index e11a2a7550..91a34cab07 100644

--- a/src/main.rs

+++ b/src/main.rs

@@ -1,4 +1,3 @@

-#![feature(let_chains)]

 use std::process;

 use std::thread;

 use std::time::Duration;