chore: use rustfmt imports_granularity option (#17421)

Closes https://github.com/denoland/deno/issues/2699
Closes https://github.com/denoland/deno/issues/2347

Uses unstable rustfmt features. Since dprint invokes `rustfmt` we do not
need to switch the cargo toolchain to nightly. Do we care about
formatting stability of our codebase across Rust versions? (I don't)

5 files changed, 12 insertions, 5 deletions

diff --git a/core/extensions.rs b/core/extensions.rs
index 437621c0e..2cb16b125 100644
--- a/core/extensions.rs
+++ b/core/extensions.rs
@@ -1,7 +1,9 @@
 // Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
 use crate::OpState;
 use anyhow::Error;
-use std::{cell::RefCell, rc::Rc, task::Context};
+use std::cell::RefCell;
+use std::rc::Rc;
+use std::task::Context;
 use v8::fast_api::FastFunction;
 
 pub type SourcePair = (&'static str, &'static str);
diff --git a/core/modules.rs b/core/modules.rs
index 917649c85..8a79143f0 100644
--- a/core/modules.rs
+++ b/core/modules.rs
@@ -1190,7 +1190,8 @@ mod tests {
   use std::future::Future;
   use std::io;
   use std::path::PathBuf;
-  use std::sync::atomic::{AtomicUsize, Ordering};
+  use std::sync::atomic::AtomicUsize;
+  use std::sync::atomic::Ordering;
   use std::sync::Arc;
   // deno_ops macros generate code assuming deno_core in scope.
   mod deno_core {
diff --git a/core/ops_builtin.rs b/core/ops_builtin.rs
index 905496025..184e942b7 100644
--- a/core/ops_builtin.rs
+++ b/core/ops_builtin.rs
@@ -13,7 +13,9 @@ use crate::ZeroCopyBuf;
 use anyhow::Error;
 use deno_ops::op;
 use std::cell::RefCell;
-use std::io::{stderr, stdout, Write};
+use std::io::stderr;
+use std::io::stdout;
+use std::io::Write;
 use std::rc::Rc;
 
 pub(crate) fn init_builtins() -> Extension {
diff --git a/core/ops_metrics.rs b/core/ops_metrics.rs
index 7daeaab19..c0b8abb51 100644
--- a/core/ops_metrics.rs
+++ b/core/ops_metrics.rs
@@ -2,7 +2,8 @@
 
 use crate::serde::Serialize;
 use crate::OpId;
-use std::cell::{RefCell, RefMut};
+use std::cell::RefCell;
+use std::cell::RefMut;
 
 // TODO(@AaronO): split into AggregateMetrics & PerOpMetrics
 #[derive(Clone, Default, Debug, Serialize)]
diff --git a/core/runtime.rs b/core/runtime.rs
index 0a5404fa1..2f818c7f8 100644
--- a/core/runtime.rs
+++ b/core/runtime.rs
@@ -2593,7 +2593,8 @@ pub mod tests {
   use std::ops::FnOnce;
   use std::pin::Pin;
   use std::rc::Rc;
-  use std::sync::atomic::{AtomicUsize, Ordering};
+  use std::sync::atomic::AtomicUsize;
+  use std::sync::atomic::Ordering;
   use std::sync::Arc;
   // deno_ops macros generate code assuming deno_core in scope.
   mod deno_core {