dependencies: update itertools from 0.7 to 0.8

clippy_dev/Cargo.toml

@@ -6,7 +6,7 @@ edition = "2018"
 
 [dependencies]
 clap = "~2.32"
-itertools = "0.7"
+itertools = "0.8"
 regex = "1"
 lazy_static = "1.0"
 walkdir = "2"

clippy_dev/src/lib.rs

@@ -82,6 +82,7 @@ pub fn gen_lint_group_list(lints: Vec<Lint>) -> Vec<String> {
             }
         })
         .sorted()
+        .collect::<Vec<String>>()
 }
 
 /// Generates the `pub mod module_name` list in `clippy_lints/src/lib.rs`.
@@ -98,6 +99,7 @@ pub fn gen_modules_list(lints: Vec<Lint>) -> Vec<String> {
         .unique()
         .map(|module| format!("pub mod {};", module))
         .sorted()
+        .collect::<Vec<String>>()
 }
 
 /// Generates the list of lint links at the bottom of the README
@@ -118,7 +120,9 @@ pub fn gen_changelog_lint_list(lints: Vec<Lint>) -> Vec<String> {
 
 /// Generates the `register_removed` code in `./clippy_lints/src/lib.rs`.
 pub fn gen_deprecated(lints: &[Lint]) -> Vec<String> {
-    itertools::flatten(lints.iter().filter_map(|l| {
+    lints
+        .iter()
+        .filter_map(|l| {
             l.clone().deprecation.and_then(|depr_text| {
                 Some(vec![
                     "    store.register_removed(".to_string(),
@@ -127,8 +131,9 @@ pub fn gen_deprecated(lints: &[Lint]) -> Vec<String> {
                     "    );".to_string(),
                 ])
             })
-    }))
+        })
-    .collect()
+        .flatten()
+        .collect::<Vec<String>>()
 }
 
 /// Gathers all files in `src/clippy_lints` and gathers all lints inside

clippy_lints/Cargo.toml

@@ -18,7 +18,7 @@ edition = "2018"
 
 [dependencies]
 cargo_metadata = "0.6.2"
-itertools = "0.7"
+itertools = "0.8"
 lazy_static = "1.0.2"
 matches = "0.1.7"
 quine-mc_cluskey = "0.2.2"