Update lang/rust to version 1.49.0.

Pkgsrc changes:
 * Adjust patches, convert tabs to spaces so that tests pass.
 * Remove patches which are no longer needed (upstream changed)
 * Minor adjustments for SunOS, e.g. disable stack probes.
 * Adjust cargo checksum patching accordingly.
 * Remove commented-out use of PATCHELF on NetBSD, which doesn't work anyway...

Upstream changes:

Version 1.49.0 (2020-12-31)
============================

Language
-----------------------

- [Unions can now implement `Drop`, and you can now have a field in a union
  with `ManuallyDrop<T>`.][77547]
- [You can now cast uninhabited enums to integers.][76199]
- [You can now bind by reference and by move in patterns.][76119] This
  allows you to selectively borrow individual components of a type. E.g.
  ```rust
  #[derive(Debug)]
  struct Person {
      name: String,
      age: u8,
  }

  let person = Person {
      name: String::from("Alice"),
      age: 20,
  };

  // `name` is moved out of person, but `age` is referenced.
  let Person { name, ref age } = person;
  println!("{} {}", name, age);
  ```

Compiler
-----------------------

- [Added tier 1\* support for `aarch64-unknown-linux-gnu`.][78228]
- [Added tier 2 support for `aarch64-apple-darwin`.][75991]
- [Added tier 2 support for `aarch64-pc-windows-msvc`.][75914]
- [Added tier 3 support for `mipsel-unknown-none`.][78676]
- [Raised the minimum supported LLVM version to LLVM 9.][78848]
- [Output from threads spawned in tests is now captured.][78227]
- [Change os and vendor values to "none" and "unknown" for some targets][78951]

\* Refer to Rust's [platform support page][forge-platform-support] for more
information on Rust's tiered platform support.

Libraries
-----------------------

- [`RangeInclusive` now checks for exhaustion when calling `contains`
  and indexing.][78109]
- [`ToString::to_string` now no longer shrinks the internal buffer
  in the default implementation.][77997]
- [`ops::{Index, IndexMut}` are now implemented for fixed sized
  arrays of any length.][74989]

Stabilized APIs
---------------

- [`slice::select_nth_unstable`]
- [`slice::select_nth_unstable_by`]
- [`slice::select_nth_unstable_by_key`]

The following previously stable methods are now `const`.

- [`Poll::is_ready`]
- [`Poll::is_pending`]

Cargo
-----------------------
- [Building a crate with `cargo-package` should now be independently
  reproducible.][cargo/8864]
- [`cargo-tree` now marks proc-macro crates.][cargo/8765]
- [Added `CARGO_PRIMARY_PACKAGE` build-time environment
  variable.]  [cargo/8758] This variable will be set if the crate
  being built is one the user selected to build, either with `-p`
  or through defaults.
- [You can now use glob patterns when specifying packages &
  targets.][cargo/8752]


Compatibility Notes
-------------------
- [Demoted `i686-unknown-freebsd` from host tier 2 to target tier
  2 support.][78746]
- [Macros that end with a semi-colon are now treated as statements
  even if they expand to nothing.][78376]
- [Rustc will now check for the validity of some built-in attributes
  on enum variants.][77015] Previously such invalid or unused
  attributes could be ignored.
- Leading whitespace is stripped more uniformly in documentation
  comments, which may change behavior. You read [this post about
  the changes][rustdoc-ws-post] for more details.
- [Trait bounds are no longer inferred for associated types.][79904]

Internal Only
-------------
These changes provide no direct user facing benefits, but represent
significant improvements to the internals and overall performance
of rustc and related tools.

- [rustc's internal crates are now compiled using the `initial-exec` Thread
  Local Storage model.][78201]
- [Calculate visibilities once in resolve.][78077]
- [Added `system` to the `llvm-libunwind` bootstrap config option.][77703]
- [Added `--color` for configuring terminal color support to bootstrap.][79004]


[75991]: rust-lang/rust#75991
[78951]: rust-lang/rust#78951
[78848]: rust-lang/rust#78848
[78746]: rust-lang/rust#78746
[78376]: rust-lang/rust#78376
[78228]: rust-lang/rust#78228
[78227]: rust-lang/rust#78227
[78201]: rust-lang/rust#78201
[78109]: rust-lang/rust#78109
[78077]: rust-lang/rust#78077
[77997]: rust-lang/rust#77997
[77703]: rust-lang/rust#77703
[77547]: rust-lang/rust#77547
[77015]: rust-lang/rust#77015
[76199]: rust-lang/rust#76199
[76119]: rust-lang/rust#76119
[75914]: rust-lang/rust#75914
[74989]: rust-lang/rust#74989
[79004]: rust-lang/rust#79004
[78676]: rust-lang/rust#78676
[79904]: rust-lang/rust#79904
[cargo/8864]: rust-lang/cargo#8864
[cargo/8765]: rust-lang/cargo#8765
[cargo/8758]: rust-lang/cargo#8758
[cargo/8752]: rust-lang/cargo#8752
[`slice::select_nth_unstable`]: https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.select_nth_unstable
[`slice::select_nth_unstable_by`]: https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.select_nth_unstable_by
[`slice::select_nth_unstable_by_key`]: https://doc.rust-lang.org/nightly/std/primitive.slice.html#method.select_nth_unstable_by_key
[`hint::spin_loop`]: https://doc.rust-lang.org/stable/std/hint/fn.spin_loop.html
[`Poll::is_ready`]: https://doc.rust-lang.org/stable/std/task/enum.Poll.html#method.is_ready
[`Poll::is_pending`]: https://doc.rust-lang.org/stable/std/task/enum.Poll.html#method.is_pending
[rustdoc-ws-post]: https://blog.guillaume-gomez.fr/articles/2020-11-11+New+doc+comment+handling+in+rustdoc

Author: he32

lang/rust/Makefile

@@ -1,6 +1,6 @@
-# $NetBSD: Makefile,v 1.216 2021/01/03 21:54:09 he Exp $
+# $NetBSD: Makefile,v 1.217 2021/02/14 08:24:30 he Exp $
 
-DISTNAME=	rustc-1.48.0-src
+DISTNAME=	rustc-1.49.0-src
 PKGNAME=	${DISTNAME:S/rustc/rust/:S/-src//}
 CATEGORIES=	lang
 MASTER_SITES=	https://static.rust-lang.org/dist/
@@ -156,23 +156,23 @@ BUILDLINK_TRANSFORM.NetBSD+=	rm:-Wl,--enable-new-dtags
 DISTFILES:=		${DEFAULT_DISTFILES}
 
 .if !empty(MACHINE_PLATFORM:MDarwin-*-x86_64) || make(distinfo) || make (makesum) || make(mdi)
-RUST_STAGE0_VER=	1.47.0
+RUST_STAGE0_VER=	1.48.0
 RUST_ARCH:=		x86_64-apple-darwin
 RUST_STAGE0:=		rust-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 RUST_STD_STAGE0:=	rust-std-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 DISTFILES:=		${DISTFILES} ${RUST_STAGE0} ${RUST_STD_STAGE0}
 pre-build-fix:
 .endif
 .if !empty(MACHINE_PLATFORM:MLinux-*-i386) || make(distinfo) || make (makesum) || make(mdi)
-RUST_STAGE0_VER=	1.47.0
+RUST_STAGE0_VER=	1.48.0
 RUST_ARCH:=		i686-unknown-linux-gnu
 RUST_STAGE0:=		rust-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 RUST_STD_STAGE0:=	rust-std-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 DISTFILES:=		${DISTFILES} ${RUST_STAGE0} ${RUST_STD_STAGE0}
 pre-build-fix:
 .endif
 .if !empty(MACHINE_PLATFORM:MLinux-*-x86_64) || make(distinfo) || make (makesum) || make(mdi)
-RUST_STAGE0_VER=	1.47.0
+RUST_STAGE0_VER=	1.48.0
 RUST_ARCH:=		x86_64-unknown-linux-gnu
 RUST_STAGE0:=		rust-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 RUST_STD_STAGE0:=	rust-std-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
@@ -199,23 +199,23 @@ CONFIGURE_ARGS+=	--target=${RUST_ARCH}
 pre-build-fix:
 .endif
 .if !empty(MACHINE_PLATFORM:MFreeBSD-*-i386) || make(distinfo) || make (makesum) || make(mdi)
-RUST_STAGE0_VER=	1.47.0
+RUST_STAGE0_VER=	1.48.0
 RUST_ARCH:=		i686-unknown-freebsd
 RUST_STAGE0:=		rust-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 RUST_STD_STAGE0:=	rust-std-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 DISTFILES:=		${DISTFILES} ${RUST_STAGE0} ${RUST_STD_STAGE0}
 pre-build-fix:
 .endif
 .if !empty(MACHINE_PLATFORM:MFreeBSD-*-x86_64) || make(distinfo) || make (makesum) || make(mdi)
-RUST_STAGE0_VER=	1.47.0
+RUST_STAGE0_VER=	1.48.0
 RUST_ARCH:=		x86_64-unknown-freebsd
 RUST_STAGE0:=		rust-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 RUST_STD_STAGE0:=	rust-std-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 DISTFILES:=		${DISTFILES} ${RUST_STAGE0} ${RUST_STD_STAGE0}
 pre-build-fix:
 .endif
 .if !empty(MACHINE_PLATFORM:MNetBSD-*-i386) || make(distinfo) || make (makesum) || make(mdi)
-RUST_STAGE0_VER=	1.47.0
+RUST_STAGE0_VER=	1.48.0
 RUST_ARCH=		i686-unknown-netbsd
 RUST_STAGE0:=		rust-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 RUST_STD_STAGE0:=	rust-std-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
@@ -232,15 +232,15 @@ pre-build-fix:
 	${TOOLS_PLATFORM.paxctl} +am ${WRKDIR}/rust-bootstrap/bin/rustc
 .endif
 .if !empty(MACHINE_PLATFORM:MNetBSD-*-x86_64) || make(distinfo) || make (makesum) || make(mdi)
-RUST_STAGE0_VER=	1.47.0
+RUST_STAGE0_VER=	1.48.0
 RUST_ARCH=		x86_64-unknown-netbsd
 RUST_STAGE0:=		rust-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 RUST_STD_STAGE0:=	rust-std-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 DISTFILES:=		${DISTFILES} ${RUST_STAGE0} ${RUST_STD_STAGE0}
 pre-build-fix:
 .endif
 .if !empty(MACHINE_PLATFORM:MNetBSD-*-powerpc) || make(distinfo) || make (makesum) || make(mdi)
-RUST_STAGE0_VER=	1.47.0
+RUST_STAGE0_VER=	1.48.0
 RUST_ARCH=		powerpc-unknown-netbsd
 
 # Cross-built against NetBSD 9.0
@@ -264,7 +264,7 @@ SITES.${RUST_STD_STAGE0}=	${MASTER_SITE_LOCAL:=rust/}
 pre-build-fix:
 .endif
 .if !empty(MACHINE_PLATFORM:MNetBSD-*-aarch64) || make(distinfo) || make (makesum) || make(mdi)
-RUST_STAGE0_VER=	1.47.0
+RUST_STAGE0_VER=	1.48.0
 RUST_ARCH=		aarch64-unknown-netbsd
 RUST_STAGE0:=		rust-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 RUST_STD_STAGE0:=	rust-std-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
@@ -274,7 +274,7 @@ SITES.${RUST_STD_STAGE0}=	${MASTER_SITE_LOCAL:=rust/}
 pre-build-fix:
 .endif
 .if !empty(MACHINE_PLATFORM:MNetBSD-*-sparc64) || make(distinfo) || make (makesum) || make(mdi)
-RUST_STAGE0_VER=	1.47.0
+RUST_STAGE0_VER=	1.48.0
 RUST_ARCH=		sparc64-unknown-netbsd
 RUST_STAGE0:=		rust-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 RUST_STD_STAGE0:=	rust-std-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
@@ -285,7 +285,7 @@ pre-build-fix:
 .endif
 .if !empty(MACHINE_PLATFORM:MNetBSD-*-earmv7hf) || make(distinfo) || make (makesum) || make(mdi)
 RUST_ARCH=		armv7-unknown-netbsd-eabihf
-RUST_STAGE0_VER=	1.47.0
+RUST_STAGE0_VER=	1.48.0
 RUST_STAGE0:=		rust-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 RUST_STD_STAGE0:=	rust-std-${RUST_STAGE0_VER}-${RUST_ARCH}.tar.gz
 DISTFILES:=		${DISTFILES} ${RUST_STAGE0} ${RUST_STD_STAGE0}
@@ -325,8 +325,8 @@ SUBST_VARS.rpath=	PREFIX
 # updating and verification.
 #
 CKSUM_CRATES+=	vendor/libc
-CKSUMS+=	a9e46c0eee970cb5b4bd910924141d223fad4aa45380d3df1ce4b25992a13037
-CKSUMS+=	41394431697e352653c37188233bd44776881eb704132203b1a232271d1afd92
+CKSUMS+=	0134ce769d06b1b1f50ad15d1aa7bd8d44bcd2f66c6318dd906de8bc4a4044c7
+CKSUMS+=	1107d18986be8af262f7a7c14761a9faf0228dc8a773379b9d7e8d2f711b3f37
 
 CKSUM_CRATES+=	vendor/lzma-sys
 CKSUMS+=	6fd5e9245db34c6f557b8bfcaf03db82fc88c3b06dbfbb5f03b2bcd138983ef9
@@ -341,8 +341,8 @@ CKSUMS+=	fd072307ebbaa01cfe1fd7553d7f42d27093b2bd32dd81d419d2e1c9423495a0
 CKSUMS+=	9e146a847e1f726fa7d7eae224aaa925030287f99770f950a012cb398e088d12
 
 CKSUM_CRATES+=	vendor/openssl-src
-CKSUMS+=	29499e62a2cde2fda48d21df58812ee5c198ef744522992bde8faae76747ac08
-CKSUMS+=	e34f9921c6531d043f3516821442aaeda86c7912d40cbddaf79bba6b08c37952
+CKSUMS+=	03dcdaac7de880b860ecfe859ba2ac3e46c8f46a7bf948aa674147eebee421b0
+CKSUMS+=	41ab6811d4ffde68f245e5097081ba8052a07a4b86df69a356ba11205e7e2210
 
 SUBST_CLASSES+=		cksum
 SUBST_STAGE.cksum=	pre-configure
@@ -353,17 +353,6 @@ SUBST_FILES.cksum+=	${crate}/.cargo-checksum.json
 SUBST_SED.cksum+=	-e 's,${from},${to},g'
 .endfor
 
-# Patchelf appears to create unrecognized binaries...
-#.if ${OPSYS} == "NetBSD"
-#TOOL_DEPENDS+=	patchelf-[0-9]*:../../devel/patchelf
-#PATCHELF=	${PREFIX}/bin/patchelf
-#FORCE_RPATH=	--force-rpath
-#.endif
-
-#TOOL_DEPENDS+=		patchelf-[0-9]*:../../devel/patchelf
-#PATCHELF=		${PREFIX}/bin/patchelf
-#FORCE_RPATH=		--force-rpath
-
 post-extract:
 	set -e;									\
 	if ${TEST} -e ${WRKDIR}/rust-${RUST_STAGE0_VER}-${RUST_ARCH}/install.sh	\
@@ -385,12 +374,6 @@ post-extract:
 	${LN} -s gcc-wrap c++-wrap; \
 	${LN} -s gcc-wrap clang++-wrap; \
 	${LN} -s gcc-wrap clang-wrap
-	# Fixup cargo rpath to pick up libcurl.so
-#	RPATH='${PREFIX}/lib:/lib:/usr/lib:$$ORIGIN/../lib'; \
-#	for f in bin/cargo; do \
-#		f=${RUST_BOOTSTRAP_PATH:Q}/$$f; \
-#		${PATCHELF} ${FORCE_RPATH} --set-rpath $${RPATH} $$f; \
-#	done
 .endif
 
 .if ${OPSYS} == "FreeBSD"