Bump Rust version to 1.76.0 (#5340)

Dockerfile

@@ -3,7 +3,7 @@ FROM ubuntu:22.04 as builder
 SHELL ["bash", "-c"]
 
 ARG git_commit_id
-ARG rust_version=1.75.0
+ARG rust_version=1.76.0
 ARG canister_name
 
 ENV GIT_COMMIT_ID=$git_commit_id

backend/bots/examples/group_prize_bot/impl/src/jobs/send_prizes.rs

@@ -36,7 +36,7 @@ async fn send_prizes_impl() {
 
 async fn send_next_prize() -> bool {
     // 1. Read a bunch of data from the runtime state, pick a random group and prize
-    let (ledger_canister_id, group, token, prize, end_date, now_nanos, bot_name) = match mutate_state(|state| {
+    let Some((ledger_canister_id, group, token, prize, end_date, now_nanos, bot_name)) = mutate_state(|state| {
         if !state.data.started {
             error!("Not started");
             return None;
@@ -64,9 +64,8 @@ async fn send_next_prize() -> bool {
         }
 
         None
-    }) {
-        Some(t) => t,
-        None => return false,
+    }) else {
+        return false;
     };
 
     // 2. Transfer the prize funds to the group

backend/canisters/user/impl/src/updates/create_community.rs

@@ -115,7 +115,7 @@ fn prepare(args: Args, state: &RuntimeState) -> Result<PrepareResult, Response>
     }
 }
 
-fn default_channels_valid(default_channels: &Vec<String>) -> bool {
+fn default_channels_valid(default_channels: &[String]) -> bool {
     if default_channels.is_empty()
         || default_channels
             .iter()

backend/canisters/user_index/impl/src/updates/pay_for_diamond_membership.rs

@@ -20,12 +20,11 @@ use utils::time::DAY_IN_MS;
 #[update(guard = "caller_is_openchat_user")]
 #[trace]
 async fn pay_for_diamond_membership(args: Args) -> Response {
-    let user_id = match read_state(|state| {
+    let Some(user_id) = read_state(|state| {
         let caller = state.env.caller();
         state.data.users.get_by_principal(&caller).map(|u| u.user_id)
-    }) {
-        Some(u) => u,
-        _ => return UserNotFound,
+    }) else {
+        return UserNotFound;
     };
 
     pay_for_diamond_membership_impl(args, user_id, true).await

rust-toolchain.toml

@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.75.0"
+channel = "1.76.0"
 targets = ["wasm32-unknown-unknown"]