style(rust): Format all Rust code with rustfmt

Change-Id: Iab7e00cc26a4f9727d3ab98691ef379921a33052
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5240
Tested-by: BuildkiteCI
Reviewed-by: kanepyork <rikingcoding@gmail.com>
Reviewed-by: Profpatsch <mail@profpatsch.de>
Reviewed-by: grfn <grfn@gws.fyi>
Reviewed-by: tazjin <tazjin@tvl.su>

fun/defer_rs/examples/defer-with-error.rs

@@ -4,17 +4,17 @@ use std::rc::Rc;
 use std::sync::RwLock;
 
 struct Defer<F: Fn()> {
-    f: F
+    f: F,
 }
 
-impl <F: Fn()> Drop for Defer<F> {
+impl<F: Fn()> Drop for Defer<F> {
     fn drop(&mut self) {
         (self.f)()
     }
 }
 
 // Only added this for Go-syntax familiarity ;-)
-fn  defer<F: Fn()>(f: F) -> Defer<F> {
+fn defer<F: Fn()>(f: F) -> Defer<F> {
     Defer { f }
 }
 
@@ -29,7 +29,9 @@ type ErrorHandle<T> = Rc<RwLock<Option<T>>>;
 ///////////////////
 
 #[derive(Debug)] // Debug trait for some default way to print the type.
-enum Error { DropError }
+enum Error {
+    DropError,
+}
 
 fn main() {
     // Create a place to store the error.
@@ -60,7 +62,7 @@ fn main() {
 
     match *drop_err.read().unwrap() {
         Some(ref err) => println!("Oh no, an error occured: {:?}!", err),
-        None => println!("Phew, everything went well.")
+        None => println!("Phew, everything went well."),
     };
 }
 

fun/defer_rs/examples/defer.rs

@@ -1,17 +1,17 @@
 // Go's defer in Rust!
 
 struct Defer<F: Fn()> {
-    f: F
+    f: F,
 }
 
-impl <F: Fn()> Drop for Defer<F> {
+impl<F: Fn()> Drop for Defer<F> {
     fn drop(&mut self) {
         (self.f)()
     }
 }
 
 // Only added this for Go-syntax familiarity ;-)
-fn  defer<F: Fn()>(f: F) -> Defer<F> {
+fn defer<F: Fn()>(f: F) -> Defer<F> {
     Defer { f }
 }
 

fun/defer_rs/examples/undefer.rs

@@ -1,10 +1,10 @@
 // Go's defer in Rust, with a little twist!
 
 struct Defer<F: Fn()> {
-    f: F
+    f: F,
 }
 
-impl <F: Fn()> Drop for Defer<F> {
+impl<F: Fn()> Drop for Defer<F> {
     fn drop(&mut self) {
         (self.f)()
     }

fun/paroxysm/src/keyword.rs

@@ -1,8 +1,7 @@
 use crate::models::{Entry, Keyword, NewEntry, NewKeyword};
 use diesel::pg::PgConnection;
 use diesel::prelude::*;
-use failure::format_err;
-use failure::Error;
+use failure::{format_err, Error};
 use std::borrow::Cow;
 
 /// Maximum number of times we'll follow a `see: ` pointer.

fun/paroxysm/src/main.rs

@@ -7,8 +7,7 @@ use crate::cfg::Config;
 use crate::keyword::KeywordDetails;
 use diesel::pg::PgConnection;
 use diesel::r2d2::{ConnectionManager, Pool};
-use failure::format_err;
-use failure::Error;
+use failure::{format_err, Error};
 use irc::client::prelude::*;
 use lazy_static::lazy_static;
 use log::{debug, info, warn};
@@ -153,8 +152,9 @@ impl App {
         // Use `nick` here, so things like "grfn: see glittershark" work.
         let val = if let Some(last) = chan_lastmsgs.get(nick_to_grab) {
             if last.starts_with("\x01ACTION ") {
-                // Yes, this is inefficient, but it's better than writing some hacky CTCP parsing code
-                // I guess (also, characters are hard, so just blindly slicing seems like a bad idea)
+                // Yes, this is inefficient, but it's better than writing some hacky CTCP parsing
+                // code I guess (also, characters are hard, so just blindly slicing
+                // seems like a bad idea)
                 format!(
                     "* {} {}",
                     nick_to_grab,