fix clippy lints from toolchain update

crates/gitbutler-core/Cargo.toml

@@ -2,7 +2,6 @@
 name = "gitbutler-core"
 version = "0.0.0"
 edition = "2021"
-rust-version = "1.57"
 authors = ["GitButler <gitbutler@gitbutler.com>"]
 publish = false
 

crates/gitbutler-core/src/git/url/parse.rs

@@ -1,6 +1,5 @@
 use std::borrow::Cow;
 
-pub use bstr;
 use bstr::{BStr, BString, ByteSlice};
 
 use super::{Scheme, Url};

crates/gitbutler-core/src/project_repository/repository.rs

@@ -650,16 +650,6 @@ pub enum LogUntil {
     End,
 }
 
-#[derive(Debug, Clone, serde::Serialize)]
-struct AskpassPromptPushContext {
-    branch_id: Option<BranchId>,
-}
-
-#[derive(Debug, Clone, serde::Serialize)]
-struct AskpassPromptFetchContext {
-    action: String,
-}
-
 async fn handle_git_prompt_push(
     prompt: String,
     askpass: Option<(AskpassBroker, Option<BranchId>)>,

crates/gitbutler-core/src/projects/storage.rs

@@ -91,7 +91,7 @@ impl Storage {
             .ok_or(Error::NotFound)?;
 
         if let Some(title) = &update_request.title {
-            project.title = title.clone();
+            project.title.clone_from(title);
         }
 
         if let Some(description) = &update_request.description {

crates/gitbutler-core/src/ssh.rs

@@ -1,6 +1,6 @@
 use std::{env, fs, path::Path};
 
-use ssh2::{self, CheckResult, KnownHostFileKind};
+use ssh2::{CheckResult, KnownHostFileKind};
 
 use crate::git;
 

crates/gitbutler-git/src/refspec.rs

@@ -78,7 +78,7 @@ impl RefSpec {
                 refspec.destination = Some(second.to_owned());
             }
         } else {
-            refspec.destination = refspec.source.clone();
+            refspec.destination.clone_from(&refspec.source);
         }
 
         if split.next().is_some() {

crates/gitbutler-tauri/Cargo.toml

@@ -2,7 +2,6 @@
 name = "gitbutler-tauri"
 version = "0.0.0"
 edition = "2021"
-rust-version = "1.57"
 authors = ["GitButler <gitbutler@gitbutler.com>"]
 publish = false
 

crates/gitbutler-tauri/src/analytics/posthog/real.rs

@@ -4,7 +4,6 @@ use async_trait::async_trait;
 use chrono::NaiveDateTime;
 use reqwest::{header::CONTENT_TYPE, Client as HttpClient};
 use serde::Serialize;
-use serde_json;
 use tracing::instrument;
 
 const API_ENDPOINT: &str = "https://eu.posthog.com/batch/";