Update bootstrap compiler

Also remove a number of `stage0` annotations and such

src/bootstrap/bin/rustc.rs

@@ -175,7 +175,7 @@ fn main() {
         if let Ok(s) = env::var("RUSTC_CODEGEN_UNITS") {
             cmd.arg("-C").arg(format!("codegen-units={}", s));
         }
-        if stage != "0" && env::var("RUSTC_THINLTO").is_ok() {
+        if env::var("RUSTC_THINLTO").is_ok() {
             cmd.arg("-Ccodegen-units=16").arg("-Zthinlto");
         }
 

src/liballoc/boxed.rs

@@ -300,10 +300,7 @@ impl<T: ?Sized> Box<T> {
                issue = "27730")]
     #[inline]
     pub unsafe fn from_unique(u: Unique<T>) -> Self {
-        #[cfg(stage0)]
-        return mem::transmute(u);
-        #[cfg(not(stage0))]
-        return Box(u);
+        Box(u)
     }
 
     /// Consumes the `Box`, returning the wrapped raw pointer.
@@ -365,14 +362,9 @@ impl<T: ?Sized> Box<T> {
                issue = "27730")]
     #[inline]
     pub fn into_unique(b: Box<T>) -> Unique<T> {
-        #[cfg(stage0)]
-        return unsafe { mem::transmute(b) };
-        #[cfg(not(stage0))]
-        return {
-            let unique = b.0;
-            mem::forget(b);
-            unique
-        };
+        let unique = b.0;
+        mem::forget(b);
+        unique
     }
 
     /// Consumes and leaks the `Box`, returning a mutable reference,

src/liballoc/slice.rs

@@ -1626,11 +1626,8 @@ impl<T> [T] {
     }
 }
 
-// FIXME(LukasKalbertodt): the `not(stage0)` constraint can be removed in the
-// future once the stage0 compiler is new enough to know about the `slice_u8`
-// lang item.
 #[lang = "slice_u8"]
-#[cfg(all(not(stage0), not(test)))]
+#[cfg(not(test))]
 impl [u8] {
     /// Checks if all bytes in this slice are within the ASCII range.
     #[stable(feature = "ascii_methods_on_intrinsics", since = "1.21.0")]

src/liballoc/str.rs

@@ -2110,7 +2110,6 @@ impl str {
     /// [`to_uppercase`]: #method.to_uppercase
     #[stable(feature = "ascii_methods_on_intrinsics", since = "1.21.0")]
     #[inline]
-    #[cfg(not(stage0))]
     pub fn to_ascii_uppercase(&self) -> String {
         let mut bytes = self.as_bytes().to_vec();
         bytes.make_ascii_uppercase();
@@ -2141,7 +2140,6 @@ impl str {
     /// [`to_lowercase`]: #method.to_lowercase
     #[stable(feature = "ascii_methods_on_intrinsics", since = "1.21.0")]
     #[inline]
-    #[cfg(not(stage0))]
     pub fn to_ascii_lowercase(&self) -> String {
         let mut bytes = self.as_bytes().to_vec();
         bytes.make_ascii_lowercase();
@@ -2163,7 +2161,6 @@ impl str {
     /// ```
     #[stable(feature = "ascii_methods_on_intrinsics", since = "1.21.0")]
     #[inline]
-    #[cfg(not(stage0))]
     pub fn eq_ignore_ascii_case(&self, other: &str) -> bool {
         self.as_bytes().eq_ignore_ascii_case(other.as_bytes())
     }
@@ -2178,7 +2175,6 @@ impl str {
     ///
     /// [`to_ascii_uppercase`]: #method.to_ascii_uppercase
     #[stable(feature = "ascii_methods_on_intrinsics", since = "1.21.0")]
-    #[cfg(not(stage0))]
     pub fn make_ascii_uppercase(&mut self) {
         let me = unsafe { self.as_bytes_mut() };
         me.make_ascii_uppercase()
@@ -2194,7 +2190,6 @@ impl str {
     ///
     /// [`to_ascii_lowercase`]: #method.to_ascii_lowercase
     #[stable(feature = "ascii_methods_on_intrinsics", since = "1.21.0")]
-    #[cfg(not(stage0))]
     pub fn make_ascii_lowercase(&mut self) {
         let me = unsafe { self.as_bytes_mut() };
         me.make_ascii_lowercase()

src/libcore/lib.rs

@@ -90,7 +90,7 @@
 #![feature(unboxed_closures)]
 #![feature(untagged_unions)]
 #![feature(unwind_attributes)]
-#![cfg_attr(not(stage0), feature(doc_spotlight))]
+#![feature(doc_spotlight)]
 
 #[prelude_import]
 #[allow(unused)]

src/libcore/marker.rs

@@ -39,7 +39,6 @@ use hash::Hasher;
 /// [arc]: ../../std/sync/struct.Arc.html
 /// [ub]: ../../reference/behavior-considered-undefined.html
 #[stable(feature = "rust1", since = "1.0.0")]
-#[cfg_attr(stage0, lang = "send")]
 #[rustc_on_unimplemented = "`{Self}` cannot be sent between threads safely"]
 pub unsafe trait Send {
     // empty.

src/librustc/lint/mod.rs

@@ -38,8 +38,6 @@ use hir::def_id::{CrateNum, LOCAL_CRATE};
 use hir::intravisit::{self, FnKind};
 use hir;
 use session::Session;
-#[cfg(stage0)]
-use std::ascii::AsciiExt;
 use std::hash;
 use syntax::ast;
 use syntax::codemap::MultiSpan;

src/librustdoc/clean/cfg.rs

@@ -15,8 +15,6 @@
 use std::mem;
 use std::fmt::{self, Write};
 use std::ops;
-#[cfg(stage0)]
-use std::ascii::AsciiExt;
 
 use syntax::symbol::Symbol;
 use syntax::ast::{MetaItem, MetaItemKind, NestedMetaItem, NestedMetaItemKind, LitKind};

src/librustdoc/html/render.rs

@@ -34,8 +34,6 @@
 //! both occur before the crate is rendered.
 pub use self::ExternalLocation::*;
 
-#[cfg(stage0)]
-use std::ascii::AsciiExt;
 use std::borrow::Cow;
 use std::cell::RefCell;
 use std::cmp::Ordering;

src/libstd/ascii.rs

@@ -298,198 +298,6 @@ pub trait AsciiExt {
     fn is_ascii_control(&self) -> bool { unimplemented!(); }
 }
 
-// FIXME(LukasKalbertodt): this impl block can be removed in the future. This is
-// possible once the stage0 compiler is new enough to contain the inherent
-// ascii methods for `[str]`. See FIXME comment further down.
-#[cfg(stage0)]
-#[stable(feature = "rust1", since = "1.0.0")]
-impl AsciiExt for str {
-    type Owned = String;
-
-    #[inline]
-    fn is_ascii(&self) -> bool {
-        self.bytes().all(|b| b.is_ascii())
-    }
-
-    #[inline]
-    fn to_ascii_uppercase(&self) -> String {
-        let mut bytes = self.as_bytes().to_vec();
-        bytes.make_ascii_uppercase();
-        // make_ascii_uppercase() preserves the UTF-8 invariant.
-        unsafe { String::from_utf8_unchecked(bytes) }
-    }
-
-    #[inline]
-    fn to_ascii_lowercase(&self) -> String {
-        let mut bytes = self.as_bytes().to_vec();
-        bytes.make_ascii_lowercase();
-        // make_ascii_uppercase() preserves the UTF-8 invariant.
-        unsafe { String::from_utf8_unchecked(bytes) }
-    }
-
-    #[inline]
-    fn eq_ignore_ascii_case(&self, other: &str) -> bool {
-        self.as_bytes().eq_ignore_ascii_case(other.as_bytes())
-    }
-
-    fn make_ascii_uppercase(&mut self) {
-        let me = unsafe { self.as_bytes_mut() };
-        me.make_ascii_uppercase()
-    }
-
-    fn make_ascii_lowercase(&mut self) {
-        let me = unsafe { self.as_bytes_mut() };
-        me.make_ascii_lowercase()
-    }
-
-    #[inline]
-    fn is_ascii_alphabetic(&self) -> bool {
-        self.bytes().all(|b| b.is_ascii_alphabetic())
-    }
-
-    #[inline]
-    fn is_ascii_uppercase(&self) -> bool {
-        self.bytes().all(|b| b.is_ascii_uppercase())
-    }
-
-    #[inline]
-    fn is_ascii_lowercase(&self) -> bool {
-        self.bytes().all(|b| b.is_ascii_lowercase())
-    }
-
-    #[inline]
-    fn is_ascii_alphanumeric(&self) -> bool {
-        self.bytes().all(|b| b.is_ascii_alphanumeric())
-    }
-
-    #[inline]
-    fn is_ascii_digit(&self) -> bool {
-        self.bytes().all(|b| b.is_ascii_digit())
-    }
-
-    #[inline]
-    fn is_ascii_hexdigit(&self) -> bool {
-        self.bytes().all(|b| b.is_ascii_hexdigit())
-    }
-
-    #[inline]
-    fn is_ascii_punctuation(&self) -> bool {
-        self.bytes().all(|b| b.is_ascii_punctuation())
-    }
-
-    #[inline]
-    fn is_ascii_graphic(&self) -> bool {
-        self.bytes().all(|b| b.is_ascii_graphic())
-    }
-
-    #[inline]
-    fn is_ascii_whitespace(&self) -> bool {
-        self.bytes().all(|b| b.is_ascii_whitespace())
-    }
-
-    #[inline]
-    fn is_ascii_control(&self) -> bool {
-        self.bytes().all(|b| b.is_ascii_control())
-    }
-}
-
-// FIXME(LukasKalbertodt): this impl block can be removed in the future. This is
-// possible once the stage0 compiler is new enough to contain the inherent
-// ascii methods for `[u8]`. See FIXME comment further down.
-#[cfg(stage0)]
-#[stable(feature = "rust1", since = "1.0.0")]
-impl AsciiExt for [u8] {
-    type Owned = Vec<u8>;
-    #[inline]
-    fn is_ascii(&self) -> bool {
-        self.iter().all(|b| b.is_ascii())
-    }
-
-    #[inline]
-    fn to_ascii_uppercase(&self) -> Vec<u8> {
-        let mut me = self.to_vec();
-        me.make_ascii_uppercase();
-        return me
-    }
-
-    #[inline]
-    fn to_ascii_lowercase(&self) -> Vec<u8> {
-        let mut me = self.to_vec();
-        me.make_ascii_lowercase();
-        return me
-    }
-
-    #[inline]
-    fn eq_ignore_ascii_case(&self, other: &[u8]) -> bool {
-        self.len() == other.len() &&
-        self.iter().zip(other).all(|(a, b)| {
-            a.eq_ignore_ascii_case(b)
-        })
-    }
-
-    fn make_ascii_uppercase(&mut self) {
-        for byte in self {
-            byte.make_ascii_uppercase();
-        }
-    }
-
-    fn make_ascii_lowercase(&mut self) {
-        for byte in self {
-            byte.make_ascii_lowercase();
-        }
-    }
-
-    #[inline]
-    fn is_ascii_alphabetic(&self) -> bool {
-        self.iter().all(|b| b.is_ascii_alphabetic())
-    }
-
-    #[inline]
-    fn is_ascii_uppercase(&self) -> bool {
-        self.iter().all(|b| b.is_ascii_uppercase())
-    }
-
-    #[inline]
-    fn is_ascii_lowercase(&self) -> bool {
-        self.iter().all(|b| b.is_ascii_lowercase())
-    }
-
-    #[inline]
-    fn is_ascii_alphanumeric(&self) -> bool {
-        self.iter().all(|b| b.is_ascii_alphanumeric())
-    }
-
-    #[inline]
-    fn is_ascii_digit(&self) -> bool {
-        self.iter().all(|b| b.is_ascii_digit())
-    }
-
-    #[inline]
-    fn is_ascii_hexdigit(&self) -> bool {
-        self.iter().all(|b| b.is_ascii_hexdigit())
-    }
-
-    #[inline]
-    fn is_ascii_punctuation(&self) -> bool {
-        self.iter().all(|b| b.is_ascii_punctuation())
-    }
-
-    #[inline]
-    fn is_ascii_graphic(&self) -> bool {
-        self.iter().all(|b| b.is_ascii_graphic())
-    }
-
-    #[inline]
-    fn is_ascii_whitespace(&self) -> bool {
-        self.iter().all(|b| b.is_ascii_whitespace())
-    }
-
-    #[inline]
-    fn is_ascii_control(&self) -> bool {
-        self.iter().all(|b| b.is_ascii_control())
-    }
-}
-
 macro_rules! delegating_ascii_methods {
     () => {
         #[inline]
@@ -562,10 +370,6 @@ impl AsciiExt for char {
     delegating_ascii_ctype_methods!();
 }
 
-// FIXME(LukasKalbertodt): the macro invocation should replace the impl block
-// for `[u8]` above. But this is not possible until the stage0 compiler is new
-// enough to contain the inherent ascii methods for `[u8]`.
-#[cfg(not(stage0))]
 #[stable(feature = "rust1", since = "1.0.0")]
 impl AsciiExt for [u8] {
     type Owned = Vec<u8>;
@@ -623,10 +427,6 @@ impl AsciiExt for [u8] {
     }
 }
 
-// FIXME(LukasKalbertodt): the macro invocation should replace the impl block
-// for `str` above. But this is not possible until the stage0 compiler is new
-// enough to contain the inherent ascii methods for `str`.
-#[cfg(not(stage0))]
 #[stable(feature = "rust1", since = "1.0.0")]
 impl AsciiExt for str {
     type Owned = String;

src/stage0.txt

@@ -12,7 +12,7 @@
 # source tarball for a stable release you'll likely see `1.x.0` for rustc and
 # `0.x.0` for Cargo where they were released on `date`.
 
-date: 2017-10-20
+date: 2017-11-21
 rustc: beta
 cargo: beta