Remove redundant [..]s

1 files changed, 3 insertions, 3 deletions

diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs
index 87e8e576117..5df8a4103b7 100644
--- a/compiler/rustc_session/src/config.rs
+++ b/compiler/rustc_session/src/config.rs
@@ -1735,7 +1735,7 @@ fn parse_native_lib_modifiers(
 ) -> (NativeLibKind, Option<bool>) {
     let mut verbatim = None;
     for modifier in modifiers.split(',') {
-        let (modifier, value) = match modifier.strip_prefix(&['+', '-'][..]) {
+        let (modifier, value) = match modifier.strip_prefix(&['+', '-']) {
             Some(m) => (m, modifier.starts_with('+')),
             None => early_error(
                 error_format,
@@ -2027,7 +2027,7 @@ pub fn build_session_options(matches: &getopts::Matches) -> Options {
 
     let unparsed_crate_types = matches.opt_strs("crate-type");
     let crate_types = parse_crate_types_from_list(unparsed_crate_types)
-        .unwrap_or_else(|e| early_error(error_format, &e[..]));
+        .unwrap_or_else(|e| early_error(error_format, &e));
 
     let mut debugging_opts = DebuggingOptions::build(matches, error_format);
     let (lint_opts, describe_lints, lint_cap) = get_cmd_lint_options(matches, error_format);
@@ -2151,7 +2151,7 @@ pub fn build_session_options(matches: &getopts::Matches) -> Options {
 
     let mut search_paths = vec![];
     for s in &matches.opt_strs("L") {
-        search_paths.push(SearchPath::from_cli_opt(&s[..], error_format));
+        search_paths.push(SearchPath::from_cli_opt(&s, error_format));
     }
 
     let libs = parse_libs(matches, error_format);