deps: update to quickcheck 0.7

This also updates the rand crate.

We bump the minimum Rust version to the latest stable, Rust 1.28.0.

See: BurntSushi/ripgrep#1019

.travis.yml

@@ -18,10 +18,10 @@ matrix:
       env: TARGET=x86_64-unknown-linux-musl
     # Minimum Rust supported channel.
     - os: linux
-      rust: 1.20.0
+      rust: 1.28.0
       env: TARGET=x86_64-unknown-linux-gnu
     - os: linux
-      rust: 1.20.0
+      rust: 1.28.0
       env: TARGET=x86_64-unknown-linux-musl
 
 before_install:

Cargo.toml

@@ -9,6 +9,7 @@ repository = "https://github.com/BurntSushi/xsv"
 readme = "README.md"
 keywords = ["csv", "tsv", "slice", "command"]
 license = "Unlicense/MIT"
+autotests = false
 
 [[bin]]
 name = "xsv"
@@ -34,7 +35,7 @@ csv-index = "0.1.5"
 docopt = "1"
 filetime = "0.1"
 num_cpus = "1.4"
-rand = "0.4"
+rand = "0.5"
 regex = "1"
 serde = "1"
 serde_derive = "1"
@@ -43,5 +44,5 @@ tabwriter = "1"
 threadpool = "1.3"
 
 [dev-dependencies]
-quickcheck = { version = "0.6", default-features = false }
+quickcheck = { version = "0.7", default-features = false }
 log = "0.4"

src/cmd/sample.rs

@@ -1,7 +1,9 @@
 use std::io;
 
+use byteorder::{ByteOrder, LittleEndian};
 use csv;
-use rand::{Rng, SeedableRng, StdRng};
+use rand::{self, Rng, SeedableRng};
+use rand::rngs::StdRng;
 
 use CliResult;
 use config::{Config, Delimiter};
@@ -115,15 +117,13 @@ fn sample_reservoir<R: io::Read>(
 
     // Seeding rng
     let mut rng: StdRng = match seed {
-        Some(s) => {
-            SeedableRng::from_seed(&[s][..])
-        }
         None => {
-            let s = ::rand::thread_rng()
-                .gen_iter()
-                .take(256)
-                .collect::<Vec<usize>>();
-            SeedableRng::from_seed(&s[..])
+            StdRng::from_rng(rand::thread_rng()).unwrap()
+        }
+        Some(seed) => {
+            let mut buf = [0u8; 32];
+            LittleEndian::write_u64(&mut buf, seed as u64);
+            SeedableRng::from_seed(buf)
         }
     };
 

tests/tests.rs

@@ -16,7 +16,7 @@ use std::mem::transmute;
 use std::ops;
 
 use quickcheck::{Arbitrary, Gen, QuickCheck, StdGen, Testable};
-use rand::thread_rng;
+use rand::{Rng, thread_rng};
 
 macro_rules! svec[
     ($($x:expr),*) => (