third

Author: AndyGauge

src/cli/ansi_terminal/ansi_term-basic.md

@@ -11,6 +11,7 @@ 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() {
@@ -28,6 +29,7 @@ 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() {
@@ -40,6 +42,7 @@ 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/datetime/duration/timezone.md

@@ -5,7 +5,7 @@
 Gets the local time and displays it using [`offset::Local::now`] and then converts it to the UTC standard using the [`DateTime::from_utc`] struct method. A time is then converted using the [`offset::FixedOffset`] struct and the UTC time is then converted to UTC+8 and UTC-2.
 
 ```rust,edition2018
-
+extern crate chrono;
 use chrono::{DateTime, FixedOffset, Local, Utc};
 
 fn main() {

src/datetime/parse/format.md

@@ -8,6 +8,7 @@ and [RFC 3339] using [`DateTime::to_rfc3339`], and in a custom format using
 [`DateTime::format`].
 
 ```rust,edition2018
+extern crate chrono;
 use chrono::{DateTime, Utc};
 
 fn main() {

src/datetime/parse/timestamp.md

@@ -7,7 +7,7 @@ Then it calculates what was the date after one billion seconds
 since January 1, 1970 0:00:00 UTC, using [`NaiveDateTime::from_timestamp`].
 
 ```rust,edition2018
-
+extern crate chrono;
 use chrono::{NaiveDate, NaiveDateTime};
 
 fn main() {

src/development_tools/versioning/semver-command.md

@@ -9,6 +9,7 @@ Runs `git --version` using [`Command`], then parses the version number into a
 
 ```rust,edition2018,no_run
 extern crate anyhow;
+extern crate semver;
 use anyhow::{Result, anyhow};
 use std::process::Command;
 use semver::{Version, VersionReq};

src/development_tools/versioning/semver-increment.md

@@ -11,6 +11,7 @@ incrementing the major version number resets both the minor and patch version
 numbers to 0.
 
 ```rust,edition2018
+extern crate semver;
 use semver::{Version, SemVerError};
 
 fn main() -> Result<(), SemVerError> {

src/development_tools/versioning/semver-latest.md

@@ -7,16 +7,10 @@ Given a list of version &strs, finds the latest [`semver::Version`].
 Also demonstrates `semver` pre-release preferences.
 
 ```rust,edition2018
-# use error_chain::error_chain;
-
+extern crate anyhow;
+extern crate semver;
+use anyhow::Result;
 use semver::{Version, VersionReq};
-#
-# error_chain! {
-#     foreign_links {
-#         SemVer(semver::SemVerError);
-#         SemVerReq(semver::ReqParseError);
-#     }
-# }
 
 fn find_max_matching_version<'a, I>(version_req_str: &str, iterable: I) -> Result<Option<Version>>
 where

src/development_tools/versioning/semver-prerelease.md

@@ -5,6 +5,7 @@
 Given two versions, [`is_prerelease`] asserts that one is pre-release and the other is not.
 
 ```rust,edition2018
+extern crate semver;
 use semver::{Version, SemVerError};
 
 fn main() -> Result<(), SemVerError> {

src/file/dir/duplicate-name.md

@@ -7,7 +7,6 @@ printing them only once.
 
 ```rust,edition2018
 extern crate walkdir;
-extern crate error_chain;
 use std::collections::HashMap;
 use walkdir::WalkDir;
 

src/file/dir/find-file.md

@@ -8,18 +8,9 @@ normal directories and files.
 
 ```rust,edition2018,no_run
 extern crate walkdir;
-extern crate error_chain;
-# use error_chain::error_chain;
-
+extern crate anyhow;
+use anyhow::Result;
 use walkdir::WalkDir;
-#
-# error_chain! {
-#     foreign_links {
-#         WalkDir(walkdir::Error);
-#         Io(std::io::Error);
-#         SystemTime(std::time::SystemTimeError);
-#     }
-# }
 
 fn main() -> Result<()> {
     for entry in WalkDir::new(".")