Update Rust imports to match style guide

src/main.rs

@@ -2,24 +2,22 @@ mod format;
 mod run;
 mod state;
 
-use {
-    crate::{format::CodeStr, run::run},
-    byte_unit::Byte,
-    chrono::Local,
-    clap::{ArgAction, Parser},
-    env_logger::{Builder, fmt::style::Effects},
-    humantime::parse_duration,
-    log::LevelFilter,
-    regex::RegexSet,
-    std::{
-        env,
-        io::{self, IsTerminal, Write},
-        process::exit,
-        str::FromStr,
-        sync::{Arc, Mutex},
-        thread::sleep,
-        time::Duration,
-    },
+use crate::{format::CodeStr, run::run};
+use byte_unit::Byte;
+use chrono::Local;
+use clap::{ArgAction, Parser};
+use env_logger::{Builder, fmt::style::Effects};
+use humantime::parse_duration;
+use log::LevelFilter;
+use regex::RegexSet;
+use std::{
+    env,
+    io::{self, IsTerminal, Write},
+    process::exit,
+    str::FromStr,
+    sync::{Arc, Mutex},
+    thread::sleep,
+    time::Duration,
 };
 
 #[macro_use]

src/run.rs

@@ -1,29 +1,26 @@
-use {
-    crate::{
-        Settings, Threshold,
-        format::CodeStr,
-        state::{self, State},
-    },
-    byte_unit::{Byte, UnitType},
-    chrono::DateTime,
-    regex::RegexSet,
-    serde::{Deserialize, Serialize},
-    std::{
-        cmp::max,
-        collections::{HashMap, HashSet, hash_map::Entry},
-        io::{self, BufRead, BufReader},
-        ops::Deref,
-        process::{Command, Stdio},
-        sync::{Arc, Mutex},
-        time::{Duration, SystemTime, UNIX_EPOCH},
-    },
+use crate::{
+    Settings, Threshold,
+    format::CodeStr,
+    state::{self, State},
+};
+use byte_unit::{Byte, UnitType};
+use chrono::DateTime;
+use regex::RegexSet;
+use serde::{Deserialize, Serialize};
+use std::{
+    cmp::max,
+    collections::{HashMap, HashSet, hash_map::Entry},
+    io::{self, BufRead, BufReader},
+    ops::Deref,
+    process::{Command, Stdio},
+    sync::{Arc, Mutex},
+    time::{Duration, SystemTime, UNIX_EPOCH},
 };
 
 #[cfg(target_os = "linux")]
-use {
-    std::path::{Path, PathBuf},
-    sysinfo::{Disk, Disks},
-};
+use std::path::{Path, PathBuf};
+#[cfg(target_os = "linux")]
+use sysinfo::{Disk, Disks};
 
 // When querying Docker for the image IDs corresponding to a list of container IDs, this is the
 // maximum number of container IDs to query at once.
@@ -931,14 +928,12 @@ pub fn run(
 
 #[cfg(test)]
 mod tests {
-    use {
-        super::{ImageNode, ImageRecord, RepositoryTag, construct_polyforest, parse_docker_date},
-        crate::state::{self, State},
-        std::{
-            collections::{HashMap, HashSet},
-            io,
-            time::Duration,
-        },
+    use super::{ImageNode, ImageRecord, RepositoryTag, construct_polyforest, parse_docker_date};
+    use crate::state::{self, State};
+    use std::{
+        collections::{HashMap, HashSet},
+        io,
+        time::Duration,
     };
 
     #[test]

src/state.rs

@@ -1,16 +1,14 @@
-use {
-    crate::format::CodeStr,
-    serde::{Deserialize, Serialize},
-    std::{
-        collections::HashMap,
-        env,
-        fs::{create_dir_all, read_to_string},
-        io::{self, Write},
-        path::PathBuf,
-        time::Duration,
-    },
-    tempfile::NamedTempFile,
+use crate::format::CodeStr;
+use serde::{Deserialize, Serialize};
+use std::{
+    collections::HashMap,
+    env,
+    fs::{create_dir_all, read_to_string},
+    io::{self, Write},
+    path::PathBuf,
+    time::Duration,
 };
+use tempfile::NamedTempFile;
 
 // What we want to remember about an individual image
 #[derive(Deserialize, Serialize)]

toast.yml

@@ -190,13 +190,6 @@ tasks:
       fi
       rg --type rust --files-with-matches '' src | xargs sed -i 's/_(/!(/g'
 
-      # Forbid unconsolidated `use` declarations.
-      if rg --line-number --type rust --multiline '}[[:space]]*;[[:space:]]*\n[[:space:]]*use' src
-      then
-        echo 'Please consolidate these `use` declarations.' >&2
-        exit 1
-      fi
-
       # Enforce that lines span no more than 100 columns.
       if rg --line-number --type rust '.{101}' src; then
         echo 'There are lines spanning more than 100 columns.' >&2