Rollup of 7 pull requests

Cargo.lock

@@ -590,7 +590,7 @@ name = "crossbeam-deque"
 version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "crossbeam-epoch 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "crossbeam-epoch 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam-utils 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -610,15 +610,15 @@ dependencies = [
 
 [[package]]
 name = "crossbeam-epoch"
-version = "0.7.0"
+version = "0.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "arrayvec 0.4.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "cfg-if 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "crossbeam-utils 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memoffset 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "scopeguard 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1671,6 +1671,14 @@ name = "memoffset"
 version = "0.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "memoffset"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "rustc_version 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "mime"
 version = "0.3.13"
@@ -3312,6 +3320,11 @@ name = "scopeguard"
 version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
+[[package]]
+name = "scopeguard"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "security-framework"
 version = "0.3.1"
@@ -4330,7 +4343,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum crossbeam-deque 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f739f8c5363aca78cfb059edf753d8f0d36908c348f3d8d1503f03d8b75d9cf3"
 "checksum crossbeam-deque 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)" = "05e44b8cf3e1a625844d1750e1f7820da46044ff6d28f4d43e455ba3e5bb2c13"
 "checksum crossbeam-epoch 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "927121f5407de9956180ff5e936fe3cf4324279280001cd56b669d28ee7e9150"
-"checksum crossbeam-epoch 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f10a4f8f409aaac4b16a5474fb233624238fcdeefb9ba50d5ea059aab63ba31c"
+"checksum crossbeam-epoch 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "fedcd6772e37f3da2a9af9bf12ebe046c0dfe657992377b4df982a2b54cd37a9"
 "checksum crossbeam-queue 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7c979cd6cfe72335896575c6b5688da489e420d36a27a0b9eb0c73db574b4a4b"
 "checksum crossbeam-utils 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "2760899e32a1d58d5abb31129f8fae5de75220bc2176e77ff7c627ae45c918d9"
 "checksum crossbeam-utils 0.6.5 (registry+https://github.com/rust-lang/crates.io-index)" = "f8306fcef4a7b563b76b7dd949ca48f52bc1141aa067d2ea09565f3e2652aa5c"
@@ -4440,6 +4453,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum memchr 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2efc7bc57c883d4a4d6e3246905283d8dae951bb3bd32f49d6ef297f546e1c39"
 "checksum memmap 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)" = "e2ffa2c986de11a9df78620c01eeaaf27d94d3ff02bf81bfcca953102dd0c6ff"
 "checksum memoffset 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0f9dc261e2b62d7a622bf416ea3c5245cdd5d9a7fcc428c0d06804dfce1775b3"
+"checksum memoffset 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "ce6075db033bbbb7ee5a0bbd3a3186bbae616f57fb001c485c7ff77955f8177f"
 "checksum mime 0.3.13 (registry+https://github.com/rust-lang/crates.io-index)" = "3e27ca21f40a310bd06d9031785f4801710d566c184a6e15bad4f1d9b65f9425"
 "checksum mime_guess 2.0.0-alpha.6 (registry+https://github.com/rust-lang/crates.io-index)" = "30de2e4613efcba1ec63d8133f344076952090c122992a903359be5a4f99c3ed"
 "checksum minifier 0.0.30 (registry+https://github.com/rust-lang/crates.io-index)" = "4c909e78edf61f3aa0dd2086da168cdf304329044bbf248768ca3d20253ec8c0"
@@ -4542,6 +4556,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum scoped-tls 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "ea6a9290e3c9cf0f18145ef7ffa62d68ee0bf5fcd651017e586dc7fd5da448c2"
 "checksum scoped_threadpool 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)" = "1d51f5df5af43ab3f1360b429fa5e0152ac5ce8c0bd6485cae490332e96846a8"
 "checksum scopeguard 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "94258f53601af11e6a49f722422f6e3425c52b06245a5cf9bc09908b174f5e27"
+"checksum scopeguard 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b42e15e59b18a828bbf5c58ea01debb36b9b096346de35d941dcb89009f24a0d"
 "checksum security-framework 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "eee63d0f4a9ec776eeb30e220f0bc1e092c3ad744b2a379e3993070364d3adc2"
 "checksum security-framework-sys 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9636f8989cbf61385ae4824b98c1aaa54c994d7d8b41f11c601ed799f0549a56"
 "checksum semver 0.9.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d7eb9ef2c18661902cc47e535f9bc51b78acd254da71d375c2f6720d9a40403"

src/ci/docker/dist-powerpc-linux/Dockerfile

@@ -36,7 +36,3 @@ ENV HOSTS=powerpc-unknown-linux-gnu
 
 ENV RUST_CONFIGURE_ARGS --enable-extended --disable-docs
 ENV SCRIPT python2.7 ../x.py dist --host $HOSTS --target $HOSTS
-
-# FIXME(#36150) this will fail the bootstrap. Probably means something bad is
-#               happening!
-ENV NO_LLVM_ASSERTIONS 1

src/doc/unstable-book/src/language-features/slice-patterns.md

@@ -17,7 +17,7 @@ matched against that pattern. For example:
 fn is_symmetric(list: &[u32]) -> bool {
     match list {
         &[] | &[_] => true,
-        &[x, ref inside.., y] if x == y => is_symmetric(inside),
+        &[x, ref inside @ .., y] if x == y => is_symmetric(inside),
         &[..] => false,
     }
 }

src/libcore/macros.rs

@@ -657,13 +657,13 @@ macro_rules! uninit_array {
     );
 }
 
-/// Built-in macros to the compiler itself.
+/// Definitions of built-in macros.
 ///
-/// These macros do not have any corresponding definition with a `macro_rules!`
-/// macro, but are documented here. Their implementations can be found hardcoded
-/// into libsyntax itself.
-#[cfg(rustdoc)]
-mod builtin {
+/// Most of the macro properties (stability, visibility, etc.) are taken from the source code here,
+/// with exception of expansion functions transforming macro inputs into outputs,
+/// those functions are provided by the compiler.
+#[cfg(not(bootstrap))]
+pub(crate) mod builtin {
 
     /// Causes compilation to fail with the given error message when encountered.
     ///
@@ -950,7 +950,7 @@ mod builtin {
 
     /// Same as `column`, but less likely to be shadowed.
     #[unstable(feature = "__rust_unstable_column", issue = "0",
-               reason = "internal implementation detail of the `column` macro")]
+               reason = "internal implementation detail of the `panic` macro")]
     #[rustc_builtin_macro]
     #[rustc_macro_transparency = "semitransparent"]
     pub macro __rust_unstable_column() { /* compiler built-in */ }

src/libcore/prelude/v1.rs

@@ -44,3 +44,50 @@ pub use crate::option::Option::{self, Some, None};
 #[stable(feature = "core_prelude", since = "1.4.0")]
 #[doc(no_inline)]
 pub use crate::result::Result::{self, Ok, Err};
+
+// Re-exported built-in macros
+#[cfg(not(bootstrap))]
+#[stable(feature = "builtin_macro_prelude", since = "1.38.0")]
+#[allow(deprecated)]
+#[doc(no_inline)]
+pub use crate::macros::builtin::{
+    Clone,
+    Copy,
+    Debug,
+    Decodable,
+    Default,
+    Encodable,
+    Eq,
+    Hash,
+    Ord,
+    PartialEq,
+    PartialOrd,
+    RustcDecodable,
+    RustcEncodable,
+    __rust_unstable_column,
+    asm,
+    assert,
+    bench,
+    cfg,
+    column,
+    compile_error,
+    concat,
+    concat_idents,
+    env,
+    file,
+    format_args,
+    format_args_nl,
+    global_allocator,
+    global_asm,
+    include,
+    include_bytes,
+    include_str,
+    line,
+    log_syntax,
+    module_path,
+    option_env,
+    stringify,
+    test,
+    test_case,
+    trace_macros,
+};

src/libcore/task/wake.rs

@@ -217,7 +217,7 @@ impl fmt::Debug for Context<'_> {
 /// This handle encapsulates a [`RawWaker`] instance, which defines the
 /// executor-specific wakeup behavior.
 ///
-/// Implements [`Clone`], [`Send`], and [`Sync`].
+/// Implements [`Clone`], [`trait@Send`], and [`trait@Sync`].
 ///
 /// [`RawWaker`]: struct.RawWaker.html
 #[repr(transparent)]

src/librustc/hir/def_id.rs

@@ -12,10 +12,6 @@ newtype_index! {
 
 #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
 pub enum CrateNum {
-    /// Virtual crate for builtin macros
-    // FIXME(jseyfried): this is also used for custom derives until proc-macro crates get
-    // `CrateNum`s.
-    BuiltinMacros,
     /// A special CrateNum that we use for the tcx.rcache when decoding from
     /// the incr. comp. cache.
     ReservedForIncrCompCache,
@@ -26,7 +22,6 @@ impl ::std::fmt::Debug for CrateNum {
     fn fmt(&self, fmt: &mut ::std::fmt::Formatter<'_>) -> ::std::fmt::Result {
         match self {
             CrateNum::Index(id) => write!(fmt, "crate{}", id.private),
-            CrateNum::BuiltinMacros => write!(fmt, "builtin macros crate"),
             CrateNum::ReservedForIncrCompCache => write!(fmt, "crate for decoding incr comp cache"),
         }
     }
@@ -86,7 +81,6 @@ impl fmt::Display for CrateNum {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
         match self {
             CrateNum::Index(id) => fmt::Display::fmt(&id.private, f),
-            CrateNum::BuiltinMacros => write!(f, "builtin macros crate"),
             CrateNum::ReservedForIncrCompCache => write!(f, "crate for decoding incr comp cache"),
         }
     }