Deny internal lints on non conflicting crates

- libarena
- librustc_allocator
- librustc_borrowck
- librustc_codegen_ssa
- librustc_codegen_utils
- librustc_driver
- librustc_errors
- librustc_incremental
- librustc_metadata
- librustc_passes
- librustc_privacy
- librustc_resolve
- librustc_save_analysis
- librustc_target
- librustc_traits
- libsyntax
- libsyntax_ext
- libsyntax_pos

src/libarena/lib.rs

@@ -12,6 +12,7 @@
        test(no_crate_inject, attr(deny(warnings))))]
 
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 #![feature(alloc)]
 #![feature(core_intrinsics)]

src/librustc_allocator/lib.rs

@@ -2,6 +2,7 @@
 #![feature(rustc_private)]
 
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 pub mod expand;
 

src/librustc_borrowck/lib.rs

@@ -2,6 +2,7 @@
 
 #![allow(non_camel_case_types)]
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 #![feature(nll)]
 

src/librustc_codegen_ssa/lib.rs

@@ -14,6 +14,7 @@
 #![allow(unused_attributes)]
 #![allow(dead_code)]
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 #![allow(explicit_outlives_requirements)]
 
 #![recursion_limit="256"]

src/librustc_codegen_utils/lib.rs

@@ -16,6 +16,7 @@
 #![recursion_limit="256"]
 
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 #[macro_use]
 extern crate rustc;

src/librustc_driver/lib.rs

@@ -17,6 +17,7 @@
 #![recursion_limit="256"]
 
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 pub extern crate getopts;
 #[cfg(unix)]

src/librustc_errors/lib.rs

@@ -6,6 +6,7 @@
 #![feature(nll)]
 #![feature(optin_builtin_traits)]
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 #[allow(unused_extern_crates)]
 extern crate serialize as rustc_serialize; // used by deriving

src/librustc_incremental/lib.rs

@@ -8,6 +8,7 @@
 #![recursion_limit="256"]
 
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 #[macro_use] extern crate rustc;
 #[allow(unused_extern_crates)]

src/librustc_metadata/lib.rs

@@ -14,6 +14,7 @@
 #![recursion_limit="256"]
 
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 extern crate libc;
 #[allow(unused_extern_crates)]

src/librustc_passes/lib.rs

@@ -12,6 +12,7 @@
 #![recursion_limit="256"]
 
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 #[macro_use]
 extern crate rustc;

src/librustc_privacy/lib.rs

@@ -1,6 +1,7 @@
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
 
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 #![feature(nll)]
 #![feature(rustc_diagnostic_macros)]

src/librustc_resolve/lib.rs

@@ -8,6 +8,7 @@
 #![recursion_limit="256"]
 
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 pub use rustc::hir::def::{Namespace, PerNS};
 

src/librustc_save_analysis/lib.rs

@@ -2,6 +2,7 @@
 #![feature(custom_attribute)]
 #![feature(nll)]
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 #![allow(unused_attributes)]
 
 #![recursion_limit="256"]

src/librustc_target/lib.rs

@@ -16,6 +16,7 @@
 #![feature(step_trait)]
 
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 #[macro_use] extern crate log;
 

src/librustc_traits/lib.rs

@@ -2,6 +2,7 @@
 //! the guts are broken up into modules; see the comments in those modules.
 
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 #![feature(crate_visibility_modifier)]
 #![feature(in_band_lifetimes)]

src/libsyntax/lib.rs

@@ -8,6 +8,7 @@
        test(attr(deny(warnings))))]
 
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 #![feature(crate_visibility_modifier)]
 #![feature(label_break_value)]

src/libsyntax_ext/lib.rs

@@ -3,6 +3,7 @@
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
 
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 #![feature(in_band_lifetimes)]
 #![feature(proc_macro_diagnostic)]

src/libsyntax_pos/lib.rs

@@ -7,6 +7,7 @@
 #![doc(html_root_url = "https://doc.rust-lang.org/nightly/")]
 
 #![deny(rust_2018_idioms)]
+#![cfg_attr(not(stage0), deny(internal))]
 
 #![feature(const_fn)]
 #![feature(crate_visibility_modifier)]