Bug 1515512 - Require rustc 1.31. r=glandium

Differential Revision: https://phabricator.services.mozilla.com/D15396

--HG--
extra : moz-landing-system : lando

build/moz.configure/rust.configure

@@ -72,7 +72,7 @@ def rust_compiler(rustc_info, cargo_info):
         You can install rust by running './mach bootstrap'
         or by directly running the installer from https://rustup.rs/
         '''))
-    rustc_min_version = Version('1.30.0')
+    rustc_min_version = Version('1.31.0')
     cargo_min_version = rustc_min_version
 
     version = rustc_info.version

python/mozboot/mozboot/base.py

@@ -151,7 +151,7 @@ MODERN_MERCURIAL_VERSION = LooseVersion('4.3.3')
 MODERN_PYTHON_VERSION = LooseVersion('2.7.3')
 
 # Upgrade rust older than this.
-MODERN_RUST_VERSION = LooseVersion('1.30.1')
+MODERN_RUST_VERSION = LooseVersion('1.31.0')
 
 
 class BaseBootstrapper(object):

taskcluster/ci/build/linux.yml

@@ -267,7 +267,7 @@ linux64-base-toolchains/opt:
     toolchains:
         - linux64-clang-3.9
         - linux64-gcc-6
-        - linux64-rust-1.30
+        - linux64-rust-1.31
         - linux64-cbindgen
         - linux64-sccache
         - linux64-node
@@ -302,7 +302,7 @@ linux64-base-toolchains/debug:
     toolchains:
         - linux64-clang-3.9
         - linux64-gcc-6
-        - linux64-rust-1.30
+        - linux64-rust-1.31
         - linux64-cbindgen
         - linux64-sccache
         - linux64-node

taskcluster/ci/toolchain/linux.yml

@@ -511,29 +511,6 @@ linux64-rust-1.28:
         ]
         toolchain-artifact: public/build/rustc.tar.xz
 
-linux64-rust-1.30:
-    description: "rust repack"
-    treeherder:
-        kind: build
-        platform: toolchains/opt
-        symbol: TL(rust-1.30)
-        tier: 1
-    worker-type: aws-provisioner-v1/gecko-{level}-b-linux
-    worker:
-        max-run-time: 7200
-        env:
-            UPLOAD_DIR: artifacts
-    run:
-        using: toolchain-script
-        script: repack_rust.py
-        arguments: [
-            '--channel', '1.30.0',
-            '--host', 'x86_64-unknown-linux-gnu',
-            '--target', 'x86_64-unknown-linux-gnu',
-            '--target', 'i686-unknown-linux-gnu',
-        ]
-        toolchain-artifact: public/build/rustc.tar.xz
-
 linux64-rust-1.31:
     description: "rust repack"
     treeherder: