Make clippy happy

src/background/registry.rs

@@ -1,3 +1,5 @@
+#![allow(clippy::new_without_default_derive)] // https://github.com/rust-lang/rust-clippy/issues/3632
+
 use serde_json;
 use std::collections::HashMap;
 use std::panic::RefUnwindSafe;

src/background/runner.rs

@@ -90,7 +90,7 @@ impl<Env: RefUnwindSafe + Send + Sync + 'static> Runner<Env> {
                 let job_id = job.id;
 
                 let result = catch_unwind(|| f(job))
-                    .map_err(try_to_extract_panic_info)
+                    .map_err(|e| try_to_extract_panic_info(&e))
                     .and_then(|r| r);
 
                 match result {
@@ -129,7 +129,7 @@ impl<Env: RefUnwindSafe + Send + Sync + 'static> Runner<Env> {
 /// However, the `panic::set_hook` functions deal with a `PanicInfo` type, and its payload is
 /// documented as "commonly but not always `&'static str` or `String`". So we can try all of those,
 /// and give up if we didn't get one of those three types.
-fn try_to_extract_panic_info(info: Box<dyn Any + Send + 'static>) -> Box<dyn CargoError> {
+fn try_to_extract_panic_info(info: &(dyn Any + Send + 'static)) -> Box<dyn CargoError> {
     if let Some(x) = info.downcast_ref::<PanicInfo>() {
         internal(&format_args!("job panicked: {}", x))
     } else if let Some(x) = info.downcast_ref::<&'static str>() {

src/controllers/version/yank.rs

@@ -43,7 +43,7 @@ fn modify_yank(req: &mut dyn Request, yanked: bool) -> CargoResult<Response> {
             diesel::update(&version)
                 .set(versions::yanked.eq(yanked))
                 .execute(&*conn)?;
-            git::yank(&conn, krate.name, version.num, yanked)?;
+            git::yank(&conn, krate.name, &version.num, yanked)?;
             Ok(())
         })?;
     }

src/git.rs

@@ -203,7 +203,7 @@ impl Job for Yank {
 pub fn yank(
     conn: &PgConnection,
     krate: String,
-    version: semver::Version,
+    version: &semver::Version,
     yanked: bool,
 ) -> CargoResult<()> {
     Yank {