Bump time dependency to 0.3 (#22)

* Bump time dependency to 0.3

* downgrade time for rust 1.63.0 in ci

.github/workflows/ci.yml

@@ -97,6 +97,13 @@ jobs:
           profile: minimal
           override: true
 
+      - name: downgrade 'time' for Rust 1.63.0
+        uses: actions-rs/cargo@v1
+        with:
+          command: update
+          args: --package time --precise 0.3.20
+        if: ${{ matrix.rust == '1.63.0' }}
+
       - name: Build generator
         uses: actions-rs/cargo@v1
         with:

generator/Cargo.toml

@@ -9,7 +9,7 @@ authors = ["Huon Wilson <dbau.pp@gmail.com>"]
 unstable = []
 
 [dependencies]
-time = "0.1.10"
+time = "0.3"
 log = "0"
 getopts = "0.2.21"
 rand = "0.8.5"

generator/src/phf.rs

@@ -145,19 +145,18 @@ pub fn create_phf(
     max_tries: usize,
 ) -> (u64, Vec<(u32, u32)>, Vec<char>) {
     let mut rng = StdRng::seed_from_u64(0xf0f0f0f0);
-    let start = time::precise_time_s();
+    let start = time::Instant::now();
 
     for i in 0..(max_tries) {
-        let my_start = time::precise_time_s();
+        let my_start = time::Instant::now();
         println!("PHF #{}: starting {:.2}", i, my_start - start);
 
         let seed = rng.gen();
         if let Some((disp, map)) = try_phf_table(data, lambda, seed, &mut rng) {
-            let end = time::precise_time_s();
             println!(
                 "PHF took: total {:.2} s, successive {:.2} s",
-                end - start,
-                end - my_start
+                start.elapsed(),
+                my_start.elapsed()
             );
             return (seed, disp, map);
         }