dev-lang/rust: bump to 1.27.0

drop some old versions
virtual/rust: bump to 1.27.0
update EAPI to 7

6 files changed, 26 insertions, 428 deletions

diff --git a/dev-lang/rust/Manifest b/dev-lang/rust/Manifest
index 4522591cc259..01a3f45e06be 100644
--- a/dev-lang/rust/Manifest
+++ b/dev-lang/rust/Manifest
@@ -4,7 +4,9 @@ DIST rust-1.24.0-x86_64-unknown-linux-gnu.tar.gz 199663002 BLAKE2B 2373637eb4410
 DIST rust-1.25.0-aarch64-unknown-linux-gnu.tar.xz 83752132 BLAKE2B a0d49238ccaa3547764c07a215a0e02c813ae18cd6aca3baae1d9a10dee87d73526552b7ff6e4936ec414794d1143041aa8f92d244e2e4fe5aaefcb12a6dcb0a SHA512 404ecd4dc1e49fba41d7ade947877f621aa762e43eb5a8f604823fe297e8023f095cd449610240ed235723baaac96064eb38445794e27708edcdbca998d939e3
 DIST rust-1.25.0-i686-unknown-linux-gnu.tar.xz 102453124 BLAKE2B 8986ebab6a7a9d00f716541484e0cfd4f33ca592880097217e718cb79cae77aad8ecaf6856f72386d2419b4dcc0d99425fb37f72b4830d6a20a74166f2c534d0 SHA512 75ad5cb5e00fabc24aaa46236cc6f2193a7543fd0944c0717c11a56d9c420d20463ad683558d86f5d42abacfb89d15f9cabf404c912a5e24a28e6716c8003e8f
 DIST rust-1.25.0-x86_64-unknown-linux-gnu.tar.xz 111059260 BLAKE2B ae982976a735c2b5226722207a983bb638cb7c0cb0ceb6b438456d54fac86a5d1892b535f01ac463157205c0ae27ae876482f6ac1fa269a9ec3e1177be0cef2e SHA512 aea93ff64f620a1dd6b48d07ec3dcbc126b2f5c17b4697c096ec8cd02a3c7dfec7ae7d5df70a55eceb372897ad12f3d01c67d5aaea0167a80270931c61323f78
+DIST rust-1.26.2-aarch64-unknown-linux-gnu.tar.xz 90964988 BLAKE2B 7e5de737ff2b4711e0a5b3085f10c3f2918fc5823dcb52bc5f897a5617b65d648d5e59664dbfaa904ff08923d1bbd11aae21349760fefef6ff18ea0e45391e07 SHA512 b565ec988d3b946dabc8902eba60b446070e77b7c27aa98d981b7ba5e9285bda95565627600e6be057970de5006d9640ef77fa920849160f5cf98508b48d1673
+DIST rust-1.26.2-i686-unknown-linux-gnu.tar.xz 143090096 BLAKE2B 7871fa4e4d0f320ff949cd31cefa116bc7b741927626958e1d10197f05fc9a662b8d6c21ddd4d2910700e6f7273e4fc18738e6ff58cd85b9af4ed25eceea31d9 SHA512 859b5b72c78cca8cd473012599ca12539ef9a5ee38d1aaaad024019fd84220e344e1cd0efd2b027ef333555b158b23529f35ceb5d59d76c35e7946b5fe4a8a52
+DIST rust-1.26.2-x86_64-unknown-linux-gnu.tar.xz 138609432 BLAKE2B 54507a8ce3ab2676e6e66852b6d3f1a47ca07ad4b56383f6247149309a0f60f67fbf0a6ba27d968c24340c07d7d5074942c6eaccbc1207c5e75fd9a6f47b2481 SHA512 29e474b0eab4dd2ffa0b964d83f52ffce530e75c4193e307410ef6d20ef9ad2b300a4f467bdf06b3311157340e9295cb9b1efdcf08dafee66979b076c2afba7e
 DIST rustc-1.25.0-src.tar.gz 98639156 BLAKE2B 1408d5dd0611d4830de3b6b3d00e3fad4198a47599b639d0ac0bd05aaba401f743056a942e9df04a4d192c6b12e8cfe9a9cdf8cd26e48b72104ce9b423df049e SHA512 7d8886f4d5a621eb794e814deb60be681fa38cf086f87ffa14e5a3500c640b237c549a632de1331a0f1b71963de41f6d31a4df3866b7e597424002316fed81ce
-DIST rustc-1.26.0-src.tar.xz 54613664 BLAKE2B 798985e4060c28828066118f39fc296e52b3796ae02f3917912680154047eb6f91806b3d45f3a0e9afcef55d95cea3079debae12d2ddf2d9c46f992e12519094 SHA512 563b910ecf4b2a0d798a1201177f733333e64efad49e5aceec5adc66a8c6903df391c9afc0fdd8284348c08082e0c4de1e5cb68efe6797594de43ca93e4ad7a2
-DIST rustc-1.26.1-src.tar.xz 54604108 BLAKE2B 73e14d835812a42f32342732db448294c98e5cfdcb76b4a5d11085bef6302ae340abadba564c38319882b558df6dbe826ed73347229599f2f8718085a6cdbe10 SHA512 219b8d4dbc1aa087422d8227de8a6be10c0579fd9d1aae83af0a0305baf2c3a72222c6bdca8635c550b5b754d08a7a5b03b81b8b28019b23250327be1c7f8b00
 DIST rustc-1.26.2-src.tar.xz 54613640 BLAKE2B f361b7a0ed40ccb026750b4a70b99931f1abf52024e907b588e339902de2fbbd15501d237ac048d0537005834b0a2f49935f654a8c75d40ed95c65894f611481 SHA512 a598858ddce0e05d1d431be383400f44fc551eb2e368f37b01670c0b65ea5da6a7d5b2b68bb6ef806d2107cfa0d5007008442ad4d5ddb17d18d04e0ab31600b0
+DIST rustc-1.27.0-src.tar.xz 55455772 BLAKE2B 5c1b26a3e8c6e45aaa43b3ccb5819089cf03c32807ac1adc46ec4f9ff8cf803ec444587ccb737b5d701c4ef5fa634fc4c89de3d71e6202b64ec125f986e54ffd SHA512 b80af48c637741add1d2846e6e3153b0125fb22ed587036fb9d27ad3961419af64802aa91a79258277b1be20718281558989ea0283db0c482fe1512354ba79d8
diff --git a/dev-lang/rust/rust-1.26.0.ebuild b/dev-lang/rust/rust-1.26.0.ebuild
deleted file mode 100644
index c9210192141e..000000000000
--- a/dev-lang/rust/rust-1.26.0.ebuild
+++ /dev/null
@@ -1,181 +0,0 @@
-# Copyright 1999-2018 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=6
-
-PYTHON_COMPAT=( python{2_7,3_5,3_6} )
-
-inherit multiprocessing python-any-r1 versionator toolchain-funcs
-
-if [[ ${PV} = *beta* ]]; then
-	betaver=${PV//*beta}
-	BETA_SNAPSHOT="${betaver:0:4}-${betaver:4:2}-${betaver:6:2}"
-	MY_P="rustc-beta"
-	SLOT="beta/${PV}"
-	SRC="${BETA_SNAPSHOT}/rustc-beta-src.tar.xz"
-	KEYWORDS=""
-else
-	ABI_VER="$(get_version_component_range 1-2)"
-	SLOT="stable/${ABI_VER}"
-	MY_P="rustc-${PV}"
-	SRC="${MY_P}-src.tar.xz"
-	KEYWORDS="~amd64 ~arm64 ~x86"
-fi
-
-CHOST_amd64=x86_64-unknown-linux-gnu
-CHOST_x86=i686-unknown-linux-gnu
-CHOST_arm64=aarch64-unknown-linux-gnu
-
-RUST_STAGE0_VERSION="1.$(($(get_version_component_range 2) - 1)).0"
-RUST_STAGE0_amd64="rust-${RUST_STAGE0_VERSION}-${CHOST_amd64}"
-RUST_STAGE0_x86="rust-${RUST_STAGE0_VERSION}-${CHOST_x86}"
-RUST_STAGE0_arm64="rust-${RUST_STAGE0_VERSION}-${CHOST_arm64}"
-
-CARGO_DEPEND_VERSION="0.$(($(get_version_component_range 2) + 1)).0"
-
-DESCRIPTION="Systems programming language from Mozilla"
-HOMEPAGE="https://www.rust-lang.org/"
-
-SRC_URI="https://static.rust-lang.org/dist/${SRC} -> rustc-${PV}-src.tar.xz
-	amd64? ( https://static.rust-lang.org/dist/${RUST_STAGE0_amd64}.tar.xz )
-	x86? ( https://static.rust-lang.org/dist/${RUST_STAGE0_x86}.tar.xz )
-	arm64? ( https://static.rust-lang.org/dist/${RUST_STAGE0_arm64}.tar.xz )
-"
-
-ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM BPF Hexagon Lanai Mips MSP430
-	NVPTX PowerPC Sparc SystemZ X86 XCore )
-ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
-LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/?}
-
-LICENSE="|| ( MIT Apache-2.0 ) BSD-1 BSD-2 BSD-4 UoI-NCSA"
-
-IUSE="debug doc extended +jemalloc ${ALL_LLVM_TARGETS[*]}"
-
-RDEPEND=">=app-eselect/eselect-rust-0.3_pre20150425
-		jemalloc? ( dev-libs/jemalloc )"
-DEPEND="${RDEPEND}
-	${PYTHON_DEPS}
-	|| (
-		>=sys-devel/gcc-4.7
-		>=sys-devel/clang-3.5
-	)
-	dev-util/cmake
-"
-PDEPEND="!extended? ( >=dev-util/cargo-${CARGO_DEPEND_VERSION} )"
-
-REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )"
-
-S="${WORKDIR}/${MY_P}-src"
-
-toml_usex() {
-	usex "$1" true false
-}
-
-src_prepare() {
-	local rust_stage0_root="${WORKDIR}"/rust-stage0
-
-	local rust_stage0_name="RUST_STAGE0_${ARCH}"
-	local rust_stage0="${!rust_stage0_name}"
-
-	"${WORKDIR}/${rust_stage0}"/install.sh --disable-ldconfig --destdir="${rust_stage0_root}" --prefix=/ || die
-
-	default
-}
-
-src_configure() {
-	local rust_stage0_root="${WORKDIR}"/rust-stage0
-
-	local rust_target_name="CHOST_${ARCH}"
-	local rust_target="${!rust_target_name}"
-
-	cat <<- EOF > "${S}"/config.toml
-		[llvm]
-		optimize = $(toml_usex !debug)
-		release-debuginfo = $(toml_usex debug)
-		assertions = $(toml_usex debug)
-		targets = "${LLVM_TARGETS// /;}"
-		[build]
-		build = "${rust_target}"
-		host = ["${rust_target}"]
-		target = ["${rust_target}"]
-		cargo = "${rust_stage0_root}/bin/cargo"
-		rustc = "${rust_stage0_root}/bin/rustc"
-		docs = $(toml_usex doc)
-		submodules = false
-		python = "${EPYTHON}"
-		locked-deps = true
-		vendor = true
-		verbose = 2
-		extended = $(toml_usex extended)
-		[install]
-		prefix = "${EPREFIX}/usr"
-		libdir = "$(get_libdir)"
-		docdir = "share/doc/${P}"
-		mandir = "share/${P}/man"
-		[rust]
-		optimize = $(toml_usex !debug)
-		debuginfo = $(toml_usex debug)
-		debug-assertions = $(toml_usex debug)
-		use-jemalloc = $(toml_usex jemalloc)
-		default-linker = "$(tc-getCC)"
-		rpath = false
-		[target.${rust_target}]
-		cc = "$(tc-getBUILD_CC)"
-		cxx = "$(tc-getBUILD_CXX)"
-		linker = "$(tc-getCC)"
-		ar = "$(tc-getAR)"
-	EOF
-}
-
-src_compile() {
-	./x.py build --verbose --config="${S}"/config.toml -j$(makeopts_jobs) || die
-}
-
-src_install() {
-	env DESTDIR="${D}" ./x.py install || die
-
-	mv "${D}/usr/bin/rustc" "${D}/usr/bin/rustc-${PV}" || die
-	mv "${D}/usr/bin/rustdoc" "${D}/usr/bin/rustdoc-${PV}" || die
-	mv "${D}/usr/bin/rust-gdb" "${D}/usr/bin/rust-gdb-${PV}" || die
-	mv "${D}/usr/bin/rust-lldb" "${D}/usr/bin/rust-lldb-${PV}" || die
-
-	dodoc COPYRIGHT
-
-	cat <<-EOF > "${T}"/50${P}
-		LDPATH="/usr/$(get_libdir)/${P}"
-		MANPATH="/usr/share/${P}/man"
-	EOF
-	doenvd "${T}"/50${P}
-
-	cat <<-EOF > "${T}/provider-${P}"
-		/usr/bin/rustdoc
-		/usr/bin/rust-gdb
-		/usr/bin/rust-lldb
-	EOF
-	dodir /etc/env.d/rust
-	insinto /etc/env.d/rust
-	doins "${T}/provider-${P}"
-}
-
-pkg_postinst() {
-	eselect rust update --if-unset
-
-	elog "Rust installs a helper script for calling GDB and LLDB,"
-	elog "for your convenience it is installed under /usr/bin/rust-{gdb,lldb}-${PV}."
-
-	if has_version app-editors/emacs || has_version app-editors/emacs-vcs; then
-		elog "install app-emacs/rust-mode to get emacs support for rust."
-	fi
-
-	if has_version app-editors/gvim || has_version app-editors/vim; then
-		elog "install app-vim/rust-vim to get vim support for rust."
-	fi
-
-	if has_version 'app-shells/zsh'; then
-		elog "install app-shells/rust-zshcomp to get zsh completion for rust."
-	fi
-}
-
-pkg_postrm() {
-	eselect rust unset --if-invalid
-}
diff --git a/dev-lang/rust/rust-1.26.1.ebuild b/dev-lang/rust/rust-1.26.1.ebuild
deleted file mode 100644
index 2508fbe3ee31..000000000000
--- a/dev-lang/rust/rust-1.26.1.ebuild
+++ /dev/null
@@ -1,221 +0,0 @@
-# Copyright 1999-2018 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=6
-
-PYTHON_COMPAT=( python2_7 python3_{5,6} pypy )
-
-inherit multiprocessing multilib-build python-any-r1 versionator toolchain-funcs
-
-if [[ ${PV} = *beta* ]]; then
-	betaver=${PV//*beta}
-	BETA_SNAPSHOT="${betaver:0:4}-${betaver:4:2}-${betaver:6:2}"
-	MY_P="rustc-beta"
-	SLOT="beta/${PV}"
-	SRC="${BETA_SNAPSHOT}/rustc-beta-src.tar.xz"
-	KEYWORDS=""
-else
-	ABI_VER="$(get_version_component_range 1-2)"
-	SLOT="stable/${ABI_VER}"
-	MY_P="rustc-${PV}"
-	SRC="${MY_P}-src.tar.xz"
-	KEYWORDS="~amd64 ~arm64 ~x86"
-fi
-
-CHOST_amd64=x86_64-unknown-linux-gnu
-CHOST_x86=i686-unknown-linux-gnu
-CHOST_arm64=aarch64-unknown-linux-gnu
-
-RUST_STAGE0_VERSION="1.$(($(get_version_component_range 2) - 1)).0"
-RUST_STAGE0_amd64="rust-${RUST_STAGE0_VERSION}-${CHOST_amd64}"
-RUST_STAGE0_x86="rust-${RUST_STAGE0_VERSION}-${CHOST_x86}"
-RUST_STAGE0_arm64="rust-${RUST_STAGE0_VERSION}-${CHOST_arm64}"
-
-CARGO_DEPEND_VERSION="0.$(($(get_version_component_range 2) + 1)).0"
-
-DESCRIPTION="Systems programming language from Mozilla"
-HOMEPAGE="https://www.rust-lang.org/"
-
-SRC_URI="https://static.rust-lang.org/dist/${SRC} -> rustc-${PV}-src.tar.xz
-	amd64? ( https://static.rust-lang.org/dist/${RUST_STAGE0_amd64}.tar.xz )
-	x86? ( https://static.rust-lang.org/dist/${RUST_STAGE0_x86}.tar.xz )
-	arm64? ( https://static.rust-lang.org/dist/${RUST_STAGE0_arm64}.tar.xz )
-"
-
-ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM BPF Hexagon Lanai Mips MSP430
-	NVPTX PowerPC Sparc SystemZ X86 XCore )
-ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
-LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/?}
-
-LICENSE="|| ( MIT Apache-2.0 ) BSD-1 BSD-2 BSD-4 UoI-NCSA"
-
-IUSE="debug doc extended +jemalloc ${ALL_LLVM_TARGETS[*]}"
-
-RDEPEND=">=app-eselect/eselect-rust-0.3_pre20150425
-		jemalloc? ( dev-libs/jemalloc )"
-DEPEND="${RDEPEND}
-	${PYTHON_DEPS}
-	|| (
-		>=sys-devel/gcc-4.7
-		>=sys-devel/clang-3.5
-	)
-	dev-util/cmake
-"
-PDEPEND="!extended? ( >=dev-util/cargo-${CARGO_DEPEND_VERSION} )"
-
-REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )"
-
-S="${WORKDIR}/${MY_P}-src"
-
-toml_usex() {
-	usex "$1" true false
-}
-
-src_prepare() {
-	local rust_stage0_root="${WORKDIR}"/rust-stage0
-
-	local rust_stage0_name="RUST_STAGE0_${ARCH}"
-	local rust_stage0="${!rust_stage0_name}"
-
-	"${WORKDIR}/${rust_stage0}"/install.sh --disable-ldconfig --destdir="${rust_stage0_root}" --prefix=/ || die
-
-	default
-}
-
-src_configure() {
-	local rust_target="" rust_targets="" rust_target_name arch_cflags
-
-	# Collect rust target names to compile standard libs for all ABIs.
-	for v in $(multilib_get_enabled_abi_pairs); do
-		rust_target_name="CHOST_${v##*.}"
-		rust_targets="${rust_targets},\"${!rust_target_name}\""
-	done
-	rust_targets="${rust_targets#,}"
-
-	local rust_stage0_root="${WORKDIR}"/rust-stage0
-
-	rust_target_name="CHOST_${ARCH}"
-	rust_target="${!rust_target_name}"
-
-	cat <<- EOF > "${S}"/config.toml
-		[llvm]
-		optimize = $(toml_usex !debug)
-		release-debuginfo = $(toml_usex debug)
-		assertions = $(toml_usex debug)
-		targets = "${LLVM_TARGETS// /;}"
-		[build]
-		build = "${rust_target}"
-		host = ["${rust_target}"]
-		target = [${rust_targets}]
-		cargo = "${rust_stage0_root}/bin/cargo"
-		rustc = "${rust_stage0_root}/bin/rustc"
-		docs = $(toml_usex doc)
-		submodules = false
-		python = "${EPYTHON}"
-		locked-deps = true
-		vendor = true
-		verbose = 2
-		extended = $(toml_usex extended)
-		[install]
-		prefix = "${EPREFIX}/usr"
-		libdir = "$(get_libdir)"
-		docdir = "share/doc/${P}"
-		mandir = "share/${P}/man"
-		[rust]
-		optimize = $(toml_usex !debug)
-		debuginfo = $(toml_usex debug)
-		debug-assertions = $(toml_usex debug)
-		use-jemalloc = $(toml_usex jemalloc)
-		default-linker = "$(tc-getCC)"
-		rpath = false
-	EOF
-
-	for v in $(multilib_get_enabled_abi_pairs); do
-		rust_target=$(get_abi_CHOST ${v##*.})
-		arch_cflags="$(get_abi_CFLAGS ${v##*.})"
-
-		cat <<- EOF >> "${S}"/config.env
-			CFLAGS_${rust_target}=${arch_cflags}
-		EOF
-
-		cat <<- EOF >> "${S}"/config.toml
-			[target.${rust_target}]
-			cc = "$(tc-getBUILD_CC)"
-			cxx = "$(tc-getBUILD_CXX)"
-			linker = "$(tc-getCC)"
-			ar = "$(tc-getAR)"
-		EOF
-	done
-}
-
-src_compile() {
-	env $(cat "${S}"/config.env)\
-		./x.py build --verbose --config="${S}"/config.toml -j$(makeopts_jobs) || die
-}
-
-src_install() {
-	local rust_target abi_libdir
-
-	env DESTDIR="${D}" ./x.py install || die
-
-	mv "${D}/usr/bin/rustc" "${D}/usr/bin/rustc-${PV}" || die
-	mv "${D}/usr/bin/rustdoc" "${D}/usr/bin/rustdoc-${PV}" || die
-	mv "${D}/usr/bin/rust-gdb" "${D}/usr/bin/rust-gdb-${PV}" || die
-	mv "${D}/usr/bin/rust-lldb" "${D}/usr/bin/rust-lldb-${PV}" || die
-
-	# Copy shared library versions of standard libraries for all targets
-	# into the system's abi-dependent lib directories because the rust
-	# installer only does so for the native ABI.
-	for v in $(multilib_get_enabled_abi_pairs); do
-		if [ ${v##*.} = ${DEFAULT_ABI} ]; then
-			continue
-		fi
-		abi_libdir=$(get_abi_LIBDIR ${v##*.})
-		rust_target=$(get_abi_CHOST ${v##*.})
-		mkdir -p ${D}/usr/${abi_libdir}
-		cp ${D}/usr/$(get_libdir)/rustlib/${rust_target}/lib/*.so \
-		   ${D}/usr/${abi_libdir} || die
-	done
-
-	dodoc COPYRIGHT
-
-	# FIXME:
-	# Really not sure if that env is needed, specailly LDPATH
-	cat <<-EOF > "${T}"/50${P}
-		LDPATH="/usr/$(get_libdir)/${P}"
-		MANPATH="/usr/share/${P}/man"
-	EOF
-	doenvd "${T}"/50${P}
-
-	cat <<-EOF > "${T}/provider-${P}"
-		/usr/bin/rustdoc
-		/usr/bin/rust-gdb
-		/usr/bin/rust-lldb
-	EOF
-	dodir /etc/env.d/rust
-	insinto /etc/env.d/rust
-	doins "${T}/provider-${P}"
-}
-
-pkg_postinst() {
-	eselect rust update --if-unset
-
-	elog "Rust installs a helper script for calling GDB and LLDB,"
-	elog "for your convenience it is installed under /usr/bin/rust-{gdb,lldb}-${PV}."
-
-	if has_version app-editors/emacs || has_version app-editors/emacs-vcs; then
-		elog "install app-emacs/rust-mode to get emacs support for rust."
-	fi
-
-	if has_version app-editors/gvim || has_version app-editors/vim; then
-		elog "install app-vim/rust-vim to get vim support for rust."
-	fi
-
-	if has_version 'app-shells/zsh'; then
-		elog "install app-shells/rust-zshcomp to get zsh completion for rust."
-	fi
-}
-
-pkg_postrm() {
-	eselect rust unset --if-invalid
-}
diff --git a/dev-lang/rust/rust-1.26.0-r3.ebuild b/dev-lang/rust/rust-1.27.0.ebuild
index 2508fbe3ee31..46186c32ca15 100644
--- a/dev-lang/rust/rust-1.26.0-r3.ebuild
+++ b/dev-lang/rust/rust-1.27.0.ebuild
@@ -5,7 +5,7 @@ EAPI=6
 
 PYTHON_COMPAT=( python2_7 python3_{5,6} pypy )
 
-inherit multiprocessing multilib-build python-any-r1 versionator toolchain-funcs
+inherit multiprocessing multilib-build python-any-r1 toolchain-funcs versionator
 
 if [[ ${PV} = *beta* ]]; then
 	betaver=${PV//*beta}
@@ -26,12 +26,14 @@ CHOST_amd64=x86_64-unknown-linux-gnu
 CHOST_x86=i686-unknown-linux-gnu
 CHOST_arm64=aarch64-unknown-linux-gnu
 
-RUST_STAGE0_VERSION="1.$(($(get_version_component_range 2) - 1)).0"
+RUST_STAGE0_VERSION="1.$(($(get_version_component_range 2) - 1)).2"
 RUST_STAGE0_amd64="rust-${RUST_STAGE0_VERSION}-${CHOST_amd64}"
 RUST_STAGE0_x86="rust-${RUST_STAGE0_VERSION}-${CHOST_x86}"
 RUST_STAGE0_arm64="rust-${RUST_STAGE0_VERSION}-${CHOST_arm64}"
 
-CARGO_DEPEND_VERSION="0.$(($(get_version_component_range 2) + 1)).0"
+# there is no cargo 0.28 tag, so use 0.27
+#CARGO_DEPEND_VERSION="0.$(($(version_get_comp 2) + 1)).0"
+CARGO_DEPEND_VERSION="0.$(($(get_version_component_range 2))).0"
 
 DESCRIPTION="Systems programming language from Mozilla"
 HOMEPAGE="https://www.rust-lang.org/"
@@ -49,7 +51,7 @@ LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/?}
 
 LICENSE="|| ( MIT Apache-2.0 ) BSD-1 BSD-2 BSD-4 UoI-NCSA"
 
-IUSE="debug doc extended +jemalloc ${ALL_LLVM_TARGETS[*]}"
+IUSE="debug doc extended +jemalloc wasm ${ALL_LLVM_TARGETS[*]}"
 
 RDEPEND=">=app-eselect/eselect-rust-0.3_pre20150425
 		jemalloc? ( dev-libs/jemalloc )"
@@ -90,6 +92,9 @@ src_configure() {
 		rust_target_name="CHOST_${v##*.}"
 		rust_targets="${rust_targets},\"${!rust_target_name}\""
 	done
+	if use wasm; then
+		rust_targets="${rust_targets},\"wasm32-unknown-unknown\""
+	fi
 	rust_targets="${rust_targets#,}"
 
 	local rust_stage0_root="${WORKDIR}"/rust-stage0
@@ -128,6 +133,7 @@ src_configure() {
 		use-jemalloc = $(toml_usex jemalloc)
 		default-linker = "$(tc-getCC)"
 		rpath = false
+		lld = $(toml_usex wasm)
 	EOF
 
 	for v in $(multilib_get_enabled_abi_pairs); do
@@ -146,6 +152,13 @@ src_configure() {
 			ar = "$(tc-getAR)"
 		EOF
 	done
+
+	if use wasm; then
+		cat <<- EOF >> "${S}"/config.toml
+			[target.wasm32-unknown-unknown]
+			linker = "lld"
+		EOF
+	fi
 }
 
 src_compile() {
@@ -172,9 +185,9 @@ src_install() {
 		fi
 		abi_libdir=$(get_abi_LIBDIR ${v##*.})
 		rust_target=$(get_abi_CHOST ${v##*.})
-		mkdir -p ${D}/usr/${abi_libdir}
-		cp ${D}/usr/$(get_libdir)/rustlib/${rust_target}/lib/*.so \
-		   ${D}/usr/${abi_libdir} || die
+		mkdir -p "${D}/usr/${abi_libdir}"
+		cp "${D}/usr/$(get_libdir)/rustlib/${rust_target}/lib"/*.so \
+		   "${D}/usr/${abi_libdir}" || die
 	done
 
 	dodoc COPYRIGHT
diff --git a/virtual/rust/rust-1.26.0.ebuild b/virtual/rust/rust-1.26.0.ebuild
deleted file mode 100644
index 26f2a40c5934..000000000000
--- a/virtual/rust/rust-1.26.0.ebuild
+++ /dev/null
@@ -1,15 +0,0 @@
-# Copyright 1999-2018 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI="6"
-
-DESCRIPTION="Virtual for Rust language compiler"
-HOMEPAGE=""
-SRC_URI=""
-
-LICENSE=""
-SLOT="0"
-KEYWORDS="~amd64 ~arm64 ~x86"
-
-DEPEND=""
-RDEPEND="|| ( =dev-lang/rust-${PV}* =dev-lang/rust-bin-${PV}* )"
diff --git a/virtual/rust/rust-1.26.1.ebuild b/virtual/rust/rust-1.27.0.ebuild
index 26f2a40c5934..fa78c78a3e78 100644
--- a/virtual/rust/rust-1.26.1.ebuild
+++ b/virtual/rust/rust-1.27.0.ebuild
@@ -1,7 +1,7 @@
 # Copyright 1999-2018 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI="6"
+EAPI=7
 
 DESCRIPTION="Virtual for Rust language compiler"
 HOMEPAGE=""
@@ -11,5 +11,5 @@ LICENSE=""
 SLOT="0"
 KEYWORDS="~amd64 ~arm64 ~x86"
 
-DEPEND=""
+BDEPEND=""
 RDEPEND="|| ( =dev-lang/rust-${PV}* =dev-lang/rust-bin-${PV}* )"