Remove lint annotations in specific crates that are already enforced by rustbuild

Remove some random unnecessary lint `allow`s

Author: petrochenkov

src/bootstrap/bin/main.rs

@@ -5,7 +5,8 @@
 //! parent directory, and otherwise documentation can be found throughout the `build`
 //! directory in each respective module.
 
-#![deny(warnings)]
+// NO-RUSTC-WRAPPER
+#![deny(warnings, rust_2018_idioms)]
 
 use std::env;
 

src/bootstrap/bin/rustc.rs

@@ -15,7 +15,8 @@
 //! switching compilers for the bootstrap and for build scripts will probably
 //! never get replaced.
 
-#![deny(warnings)]
+// NO-RUSTC-WRAPPER
+#![deny(warnings, rust_2018_idioms)]
 
 use std::env;
 use std::ffi::OsString;

src/bootstrap/bin/rustdoc.rs

@@ -2,7 +2,8 @@
 //!
 //! See comments in `src/bootstrap/rustc.rs` for more information.
 
-#![deny(warnings)]
+// NO-RUSTC-WRAPPER
+#![deny(warnings, rust_2018_idioms)]
 
 use std::env;
 use std::process::Command;

src/bootstrap/lib.rs

@@ -103,8 +103,9 @@
 //! More documentation can be found in each respective module below, and you can
 //! also check out the `src/bootstrap/README.md` file for more information.
 
-#![deny(rust_2018_idioms)]
-#![deny(warnings)]
+// NO-RUSTC-WRAPPER
+#![deny(warnings, rust_2018_idioms)]
+
 #![feature(core_intrinsics)]
 #![feature(drain_filter)]
 

src/build_helper/lib.rs

@@ -1,4 +1,5 @@
-#![deny(rust_2018_idioms)]
+// NO-RUSTC-WRAPPER
+#![deny(warnings, rust_2018_idioms)]
 
 use std::fs::File;
 use std::path::{Path, PathBuf};

src/liballoc/lib.rs

@@ -62,8 +62,6 @@
 #![warn(missing_docs)]
 #![warn(missing_debug_implementations)]
 #![deny(intra_doc_link_resolution_failure)] // rustdoc is run without -D warnings
-
-#![deny(rust_2018_idioms)]
 #![allow(explicit_outlives_requirements)]
 
 #![cfg_attr(not(test), feature(generator_trait))]

src/liballoc/tests/lib.rs

@@ -8,7 +8,6 @@
 #![feature(trusted_len)]
 #![feature(try_reserve)]
 #![feature(unboxed_closures)]
-#![deny(rust_2018_idioms)]
 
 use std::hash::{Hash, Hasher};
 use std::collections::hash_map::DefaultHasher;

src/libarena/lib.rs

@@ -11,7 +11,6 @@
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/",
        test(no_crate_inject, attr(deny(warnings))))]
 
-#![deny(rust_2018_idioms)]
 #![deny(unused_lifetimes)]
 
 #![feature(core_intrinsics)]

src/libcore/lib.rs

@@ -62,8 +62,6 @@
 #![warn(missing_docs)]
 #![warn(missing_debug_implementations)]
 #![deny(intra_doc_link_resolution_failure)] // rustdoc is run without -D warnings
-
-#![deny(rust_2018_idioms)]
 #![allow(explicit_outlives_requirements)]
 
 #![feature(allow_internal_unstable)]

src/libcore/tests/lib.rs

@@ -32,7 +32,6 @@
 #![feature(const_fn)]
 #![feature(iter_partition_in_place)]
 #![feature(iter_is_partitioned)]
-#![warn(rust_2018_idioms)]
 
 extern crate test;