modernize some code

3 files changed, 7 insertions, 18 deletions

diff --git a/crates/test_utils/src/lib.rs b/crates/test_utils/src/lib.rs
index d9fbb9b5b..e72ec9c47 100644
--- a/crates/test_utils/src/lib.rs
+++ b/crates/test_utils/src/lib.rs
@@ -1,12 +1,9 @@
-extern crate difference;
-extern crate itertools;
-extern crate text_unit;
+use std::fmt;
 
 use itertools::Itertools;
-use std::fmt;
 use text_unit::{TextRange, TextUnit};
 
-pub use self::difference::Changeset as __Changeset;
+pub use difference::Changeset as __Changeset;
 
 pub const CURSOR_MARKER: &str = "<|>";
 
diff --git a/crates/tools/src/lib.rs b/crates/tools/src/lib.rs
index 4ff783c50..c2123db99 100644
--- a/crates/tools/src/lib.rs
+++ b/crates/tools/src/lib.rs
@@ -1,7 +1,3 @@
-extern crate failure;
-extern crate itertools;
-extern crate teraron;
-
 use std::{
     path::{Path, PathBuf},
     process::{Command, Stdio},
@@ -12,7 +8,7 @@ use itertools::Itertools;
 
 pub use teraron::{Mode, Overwrite, Verify};
 
-pub type Result<T> = ::std::result::Result<T, failure::Error>;
+pub type Result<T> = std::result::Result<T, failure::Error>;
 
 pub const GRAMMAR: &str = "crates/ra_syntax/src/grammar.ron";
 pub const SYNTAX_KINDS: &str = "crates/ra_syntax/src/syntax_kinds/generated.rs.tera";
diff --git a/crates/tools/src/main.rs b/crates/tools/src/main.rs
index dc623a464..7bd4a2d09 100644
--- a/crates/tools/src/main.rs
+++ b/crates/tools/src/main.rs
@@ -1,16 +1,12 @@
-extern crate clap;
-extern crate failure;
-extern crate teraron;
-extern crate tools;
-extern crate walkdir;
-
-use clap::{App, Arg, SubCommand};
-use failure::bail;
 use std::{
     collections::HashMap,
     fs,
     path::{Path, PathBuf},
 };
+
+use clap::{App, Arg, SubCommand};
+use failure::bail;
+
 use tools::{collect_tests, generate, run, run_rustfmt, Mode, Overwrite, Result, Test, Verify};
 
 const GRAMMAR_DIR: &str = "./crates/ra_syntax/src/grammar";