Update time crate to 0.3.5

Due to unsoundness issues (c.f., time-rs/time#380 and time-rs/time#293),
determining the local timezone can only happen while single-threaded.

Determine the timezone early in startup and apply the offset to the UTC
timestamp before formatting.

alacritty/Cargo.toml

@@ -21,7 +21,7 @@ version = "0.1.0"
 [dependencies]
 clap = { version = "3.0.0", features = ["derive"] }
 log = { version = "0.4", features = ["std", "serde"] }
-time = "0.1.40"
+time = { version = "0.3.5", features = ["formatting", "local-offset", "macros"] }
 fnv = "1"
 serde = { version = "1", features = ["derive"] }
 serde_yaml = "0.8"

alacritty/src/logging.rs

@@ -13,6 +13,8 @@ use std::{env, process};
 
 use glutin::event_loop::EventLoopProxy;
 use log::{self, Level, LevelFilter};
+use time::macros::format_description;
+use time::{OffsetDateTime, UtcOffset};
 
 use crate::cli::Options;
 use crate::event::{Event, EventType};
@@ -41,14 +43,20 @@ pub struct Logger {
     logfile: Mutex<OnDemandLogFile>,
     stdout: Mutex<LineWriter<Stdout>>,
     event_proxy: Mutex<EventLoopProxy<Event>>,
+    tz_offset: UtcOffset,
 }
 
 impl Logger {
     fn new(event_proxy: EventLoopProxy<Event>) -> Self {
         let logfile = Mutex::new(OnDemandLogFile::new());
         let stdout = Mutex::new(LineWriter::new(io::stdout()));
 
-        Logger { logfile, stdout, event_proxy: Mutex::new(event_proxy) }
+        Logger {
+            logfile,
+            stdout,
+            event_proxy: Mutex::new(event_proxy),
+            tz_offset: UtcOffset::current_local_offset().expect("local timezone offset"),
+        }
     }
 
     fn file_path(&self) -> Option<PathBuf> {
@@ -108,7 +116,7 @@ impl log::Log for Logger {
         }
 
         // Create log message for the given `record` and `target`.
-        let message = create_log_message(record, target);
+        let message = create_log_message(record, target, self.tz_offset);
 
         if let Ok(mut logfile) = self.logfile.lock() {
             // Write to logfile.
@@ -127,8 +135,11 @@ impl log::Log for Logger {
     fn flush(&self) {}
 }
 
-fn create_log_message(record: &log::Record<'_>, target: &str) -> String {
-    let now = time::strftime("%F %T.%f", &time::now()).unwrap();
+fn create_log_message(record: &log::Record<'_>, target: &str, tz_offset: UtcOffset) -> String {
+    let time_format = format_description!(
+        "[year]-[month]-[day] [hour repr:24]:[minute]:[second].[subsecond digits:9]"
+    );
+    let now = OffsetDateTime::now_utc().to_offset(tz_offset).format(time_format).unwrap();
     let mut message = format!("[{}] [{:<5}] [{}] ", now, record.level(), target);
 
     // Alignment for the lines after the first new line character in the payload. We don't deal