update syntax

Author: AndyGauge

Cargo.toml

@@ -21,7 +21,7 @@ cc = "1.0"
 chrono = "0.4"
 clap = "4.5"
 crossbeam = "0.8"
-crossbeam-channel = "0.3.9"
+crossbeam-channel = "0.5"
 csv = "1.0"
 data-encoding = "2.1.0"
 env_logger = "0.11.3"

src/about.md

@@ -57,7 +57,6 @@ Consider this example for "generate random numbers within a range":
 [![rand-badge]][rand] [![cat-science-badge]][cat-science]
 
 ```rust,edition2018
-extern crate rand;
 use rand::Rng;
 
 fn main() {

src/algorithms/randomness/rand-choose.md

@@ -5,8 +5,7 @@
 Randomly generates a string of given length ASCII characters with custom
 user-defined bytestring, with [`gen_range`].
 
-```rust,edition2018
-extern crate rand;
+```rust,edition2018,ignore
 use rand::Rng;
 
 const CHARSET: &[u8] = b"ABCDEFGHIJKLMNOPQRSTUVWXYZ\
@@ -20,7 +19,7 @@ fn main() {
     let password: String = (0..PASSWORD_LEN)
         .map(|_| {
             let idx = rng.gen_range(0..CHARSET.len());
-            CHARSET[idx] as char
+            char::from(CHARSET[idx])
         })
         .collect();
 

src/algorithms/randomness/rand-custom.md

@@ -5,8 +5,7 @@
 Randomly generates a tuple `(i32, bool, f64)` and variable of user defined type `Point`.
 Implements the [`Distribution`] trait on type Point for [`Standard`] in order to allow random generation.
 
-```rust,edition2018,ignore,no_run
-extern crate rand;
+```rust,edition2018,no_run
 use rand::Rng;
 use rand::distributions::{Distribution, Standard};
 

src/algorithms/randomness/rand-dist.md

@@ -13,11 +13,8 @@ The [distributions available are documented here][rand-distributions].
 An example using the [`Normal`] distribution is shown below.
 
 ```rust,edition2018,ignore
-extern crate rand;
-extern crate rand_distr;
 use rand::Rng;
 use rand_distr::{Distribution, LogNormal, Normal};
-use rand::distributions::Distribution as RandDistribution;
 
 fn main() {
     let mut rng = rand::thread_rng();

src/algorithms/randomness/rand-passwd.md

@@ -5,8 +5,7 @@
 Randomly generates a string of given length ASCII characters in the range `A-Z,
 a-z, 0-9`, with [`Alphanumeric`] sample.
 
-```rust,edition2018,ignore,no_run
-extern crate rand;
+```rust,edition2018,no_run
 use rand::{thread_rng, Rng};
 use rand::distributions::Alphanumeric;
 

src/algorithms/randomness/rand-range.md

@@ -5,7 +5,6 @@
 Generates a random value within half-open `[0, 10)` range (not including `10`) with [`Rng::gen_range`].
 
 ```rust,edition2018,ignore
-extern crate rand;
 use rand::Rng;
 
 fn main() {
@@ -20,8 +19,6 @@ This has the same effect, but may be faster when repeatedly generating numbers
 in the same range.
 
 ```rust,edition2018,ignore
-extern crate rand;
-extern crate rand_distr;
 use rand::Rng;
 use rand_distr::{Distribution, Uniform};
 

src/algorithms/randomness/rand.md

@@ -8,8 +8,7 @@ initialized generator. Integers are uniformly distributed over the range of the
 type, and floating point numbers are uniformly distributed from 0 up to but not
 including 1.
 
-```rust,edition2018
-extern crate rand;
+```rust,edition2018,ignore
 use rand::Rng;
 
 fn main() {

src/cli/ansi_terminal/ansi_term-basic.md

@@ -11,7 +11,6 @@ There are two main data structures in [`ansi_term`]: [`ANSIString`] and [`Style`
 ### Printing colored text to the Terminal
 
 ```rust,edition2018
-extern crate ansi_term;
 use ansi_term::Colour;
 
 fn main() {
@@ -29,7 +28,6 @@ needs to construct `Style` struct. [`Style::new()`] creates the struct,
 and properties chained.
 
 ```rust,edition2018
-extern crate ansi_term;
 use ansi_term::Style;
 
 fn main() {
@@ -42,7 +40,6 @@ fn main() {
 `Colour` implements many similar functions as `Style` and can chain methods.
 
 ```rust,edition2018
-extern crate ansi_term;
 use ansi_term::Colour;
 use ansi_term::Style;
 

src/cli/arguments/clap-basic.md

@@ -23,7 +23,6 @@ practice, but when it happens it is really frustrating
 without this.
 
 ```rust,edition2018
-extern crate clap;
 use std::path::PathBuf;
 
 use clap::{Arg, Command, builder::PathBufValueParser};