Merge remote-tracking branch 'rust-lang/master' into hermit

CONTRIBUTING.md

@@ -105,7 +105,7 @@ contributions to the compiler and the standard library. It also lists some
 really useful commands to the build system (`./x.py`), which could save you a
 lot of time.
 
-[rustcguidebuild]: https://rust-lang.github.io/rustc-guide/how-to-build-and-run.html
+[rustcguidebuild]: https://rust-lang.github.io/rustc-guide/building/how-to-build-and-run.html
 
 ## Pull Requests
 [pull-requests]: #pull-requests

Cargo.lock

@@ -68,7 +68,7 @@ name = "arena"
 version = "0.0.0"
 dependencies = [
  "rustc_data_structures",
- "smallvec",
+ "smallvec 1.0.0",
 ]
 
 [[package]]
@@ -208,6 +208,7 @@ name = "build-manifest"
 version = "0.1.0"
 dependencies = [
  "serde",
+ "serde_json",
  "toml",
 ]
 
@@ -486,7 +487,7 @@ dependencies = [
  "regex-syntax",
  "semver",
  "serde",
- "smallvec",
+ "smallvec 1.0.0",
  "toml",
  "unicode-normalization",
  "url 2.1.0",
@@ -654,7 +655,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0f0ed1a4de2235cabda8558ff5840bffb97fcb64c97827f354a451307df5f72b"
 dependencies = [
  "crossbeam-utils 0.6.5",
- "smallvec",
+ "smallvec 0.6.10",
 ]
 
 [[package]]
@@ -2251,9 +2252,9 @@ dependencies = [
 
 [[package]]
 name = "openssl"
-version = "0.10.16"
+version = "0.10.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec7bd7ca4cce6dbdc77e7c1230682740d307d1218a87fb0349a571272be749f9"
+checksum = "2f372b2b53ce10fb823a337aaa674e3a7d072b957c6264d0f4ff0bd86e657449"
 dependencies = [
  "bitflags",
  "cfg-if",
@@ -2280,15 +2281,15 @@ dependencies = [
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.43"
+version = "0.9.52"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "33c86834957dd5b915623e94f2f4ab2c70dd8f6b70679824155d5ae21dbd495d"
+checksum = "c977d08e1312e2f7e4b86f9ebaa0ed3b19d1daff75fae88bbb88108afbd801fc"
 dependencies = [
+ "autocfg",
  "cc",
  "libc",
  "openssl-src",
  "pkg-config",
- "rustc_version",
  "vcpkg",
 ]
 
@@ -2391,7 +2392,7 @@ dependencies = [
  "libc",
  "rand 0.6.1",
  "rustc_version",
- "smallvec",
+ "smallvec 0.6.10",
  "winapi 0.3.6",
 ]
 
@@ -2406,7 +2407,7 @@ dependencies = [
  "libc",
  "redox_syscall",
  "rustc_version",
- "smallvec",
+ "smallvec 0.6.10",
  "winapi 0.3.6",
 ]
 
@@ -3134,7 +3135,7 @@ dependencies = [
  "rustc_target",
  "scoped-tls",
  "serialize",
- "smallvec",
+ "smallvec 1.0.0",
  "syntax",
  "syntax_pos",
 ]
@@ -3146,7 +3147,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a623fd4805842e9bd0bb6e6dace63efede0ee22de4522a0b03b7c3d15a22f009"
 dependencies = [
  "rustc-ap-rustc_data_structures",
- "smallvec",
+ "smallvec 0.6.10",
 ]
 
 [[package]]
@@ -3175,7 +3176,7 @@ dependencies = [
  "rustc-hash",
  "rustc-rayon 0.2.0",
  "rustc-rayon-core 0.2.0",
- "smallvec",
+ "smallvec 0.6.10",
  "stable_deref_trait",
 ]
 
@@ -3203,7 +3204,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "457a5c204ae2fdaa5bdb5b196e58ca59896870d80445fe423063c9453496e3ea"
 dependencies = [
  "rustc-ap-serialize",
- "smallvec",
+ "smallvec 0.6.10",
 ]
 
 [[package]]
@@ -3249,7 +3250,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "92679240e86f4583cc05f8dcf6439bdab87bac9e6555718469176de9bd52ba20"
 dependencies = [
  "indexmap",
- "smallvec",
+ "smallvec 0.6.10",
 ]
 
 [[package]]
@@ -3269,7 +3270,7 @@ dependencies = [
  "rustc-ap-serialize",
  "rustc-ap-syntax_pos",
  "scoped-tls",
- "smallvec",
+ "smallvec 0.6.10",
 ]
 
 [[package]]
@@ -3392,7 +3393,7 @@ dependencies = [
  "crossbeam-utils 0.6.5",
  "serde",
  "serde_json",
- "smallvec",
+ "smallvec 0.6.10",
  "syn 0.15.35",
  "url 2.1.0",
  "winapi 0.3.6",
@@ -3403,7 +3404,7 @@ name = "rustc_apfloat"
 version = "0.0.0"
 dependencies = [
  "bitflags",
- "smallvec",
+ "smallvec 1.0.0",
 ]
 
 [[package]]
@@ -3483,7 +3484,7 @@ dependencies = [
  "rustc-rayon-core 0.3.0",
  "rustc_index",
  "serialize",
- "smallvec",
+ "smallvec 1.0.0",
  "stable_deref_trait",
 ]
 
@@ -3503,8 +3504,10 @@ dependencies = [
  "rustc_lint",
  "rustc_metadata",
  "rustc_mir",
+ "rustc_parse",
  "rustc_plugin",
  "rustc_plugin_impl",
+ "rustc_resolve",
  "rustc_save_analysis",
  "rustc_target",
  "serialize",
@@ -3551,7 +3554,7 @@ name = "rustc_index"
 version = "0.0.0"
 dependencies = [
  "serialize",
- "smallvec",
+ "smallvec 1.0.0",
 ]
 
 [[package]]
@@ -3570,6 +3573,7 @@ dependencies = [
  "rustc_lint",
  "rustc_metadata",
  "rustc_mir",
+ "rustc_parse",
  "rustc_passes",
  "rustc_plugin_impl",
  "rustc_privacy",
@@ -3578,7 +3582,7 @@ dependencies = [
  "rustc_traits",
  "rustc_typeck",
  "serialize",
- "smallvec",
+ "smallvec 1.0.0",
  "syntax",
  "syntax_expand",
  "syntax_ext",
@@ -3647,9 +3651,10 @@ dependencies = [
  "rustc_data_structures",
  "rustc_errors",
  "rustc_index",
+ "rustc_parse",
  "rustc_target",
  "serialize",
- "smallvec",
+ "smallvec 1.0.0",
  "stable_deref_trait",
  "syntax",
  "syntax_expand",
@@ -3674,7 +3679,7 @@ dependencies = [
  "rustc_lexer",
  "rustc_target",
  "serialize",
- "smallvec",
+ "smallvec 1.0.0",
  "syntax",
  "syntax_pos",
 ]
@@ -3690,6 +3695,21 @@ dependencies = [
  "core",
 ]
 
+[[package]]
+name = "rustc_parse"
+version = "0.0.0"
+dependencies = [
+ "bitflags",
+ "log",
+ "rustc_data_structures",
+ "rustc_errors",
+ "rustc_lexer",
+ "rustc_target",
+ "smallvec 1.0.0",
+ "syntax",
+ "syntax_pos",
+]
+
 [[package]]
 name = "rustc_passes"
 version = "0.0.0"
@@ -3699,6 +3719,7 @@ dependencies = [
  "rustc_data_structures",
  "rustc_errors",
  "rustc_index",
+ "rustc_parse",
  "rustc_target",
  "syntax",
  "syntax_pos",
@@ -3745,7 +3766,7 @@ dependencies = [
  "rustc_data_structures",
  "rustc_errors",
  "rustc_metadata",
- "smallvec",
+ "smallvec 1.0.0",
  "syntax",
  "syntax_expand",
  "syntax_pos",
@@ -3761,7 +3782,7 @@ dependencies = [
  "rustc",
  "rustc_codegen_utils",
  "rustc_data_structures",
- "rustc_target",
+ "rustc_parse",
  "serde_json",
  "syntax",
  "syntax_pos",
@@ -3798,7 +3819,7 @@ dependencies = [
  "rustc",
  "rustc_data_structures",
  "rustc_target",
- "smallvec",
+ "smallvec 1.0.0",
  "syntax",
  "syntax_pos",
 ]
@@ -3825,7 +3846,7 @@ dependencies = [
  "rustc_errors",
  "rustc_index",
  "rustc_target",
- "smallvec",
+ "smallvec 1.0.0",
  "syntax",
  "syntax_pos",
 ]
@@ -4069,7 +4090,7 @@ name = "serialize"
 version = "0.0.0"
 dependencies = [
  "indexmap",
- "smallvec",
+ "smallvec 1.0.0",
 ]
 
 [[package]]
@@ -4133,6 +4154,12 @@ version = "0.6.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ab606a9c5e214920bb66c458cd7be8ef094f813f20fe77a54cc7dbfff220d4b7"
 
+[[package]]
+name = "smallvec"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4ecf3b85f68e8abaa7555aa5abdb1153079387e60b718283d732f03897fcfc86"
+
 [[package]]
 name = "socket2"
 version = "0.3.8"
@@ -4355,28 +4382,23 @@ dependencies = [
  "rustc_errors",
  "rustc_index",
  "rustc_lexer",
- "rustc_target",
  "scoped-tls",
  "serialize",
- "smallvec",
+ "smallvec 1.0.0",
  "syntax_pos",
 ]
 
 [[package]]
 name = "syntax_expand"
 version = "0.0.0"
 dependencies = [
- "bitflags",
- "lazy_static 1.3.0",
  "log",
  "rustc_data_structures",
  "rustc_errors",
- "rustc_index",
  "rustc_lexer",
- "rustc_target",
- "scoped-tls",
+ "rustc_parse",
  "serialize",
- "smallvec",
+ "smallvec 1.0.0",
  "syntax",
  "syntax_pos",
 ]
@@ -4389,8 +4411,9 @@ dependencies = [
  "log",
  "rustc_data_structures",
  "rustc_errors",
+ "rustc_parse",
  "rustc_target",
- "smallvec",
+ "smallvec 1.0.0",
  "syntax",
  "syntax_expand",
  "syntax_pos",

README.md

@@ -21,7 +21,7 @@ The Rust build system has a Python script called `x.py` to bootstrap building
 the compiler. More information about it may be found by running `./x.py --help`
 or reading the [rustc guide][rustcguidebuild].
 
-[rustcguidebuild]: https://rust-lang.github.io/rustc-guide/how-to-build-and-run.html
+[rustcguidebuild]: https://rust-lang.github.io/rustc-guide/building/how-to-build-and-run.html
 
 ### Building on *nix
 1. Make sure you have installed the dependencies:

src/bootstrap/flags.rs

@@ -448,12 +448,12 @@ Arguments:
 
         Flags {
             verbose: matches.opt_count("verbose"),
-            stage: matches.opt_str("stage").map(|j| j.parse().unwrap()),
+            stage: matches.opt_str("stage").map(|j| j.parse().expect("`stage` should be a number")),
             dry_run: matches.opt_present("dry-run"),
             on_fail: matches.opt_str("on-fail"),
             rustc_error_format: matches.opt_str("error-format"),
             keep_stage: matches.opt_strs("keep-stage")
-                .into_iter().map(|j| j.parse().unwrap())
+                .into_iter().map(|j| j.parse().expect("`keep-stage` should be a number"))
                 .collect(),
             host: split(&matches.opt_strs("host"))
                 .into_iter()
@@ -464,7 +464,7 @@ Arguments:
                 .map(|x| INTERNER.intern_string(x))
                 .collect::<Vec<_>>(),
             config: cfg_file,
-            jobs: matches.opt_str("jobs").map(|j| j.parse().unwrap()),
+            jobs: matches.opt_str("jobs").map(|j| j.parse().expect("`jobs` should be a number")),
             cmd,
             incremental: matches.opt_present("incremental"),
             exclude: split(&matches.opt_strs("exclude"))