Bug 1376940 - mozboot: Update rustup to 1.5.0. r=froydnj

Bump the target version and checksums for the rustup installers
we use for the latest release so reduce the variance with manual
installs.

MozReview-Commit-ID: E5O4UOu1wLr

--HG--
extra : rebase_source : a0745515957667787929bc5df05a66adb29cbd66

python/mozboot/mozboot/rust.py

@@ -20,18 +20,18 @@ RUSTUP_URL_BASE = 'https://static-rust-lang-org.s3.amazonaws.com/rustup'
 RUSTUP_MANIFEST = os.path.join(RUSTUP_URL_BASE, 'release-stable.toml')
 
 # We bake in a known version number so we can verify a checksum.
-RUSTUP_VERSION = '1.0.0'
+RUSTUP_VERSION = '1.5.0'
 
 # SHA-256 checksums of the installers, per platform.
 RUSTUP_HASHES = {
     'x86_64-unknown-freebsd':
-        '706c2c8a49498b722baad5e8dadaa16a3505e2a9f46b7ee3f41d4dce56163155',
+        '0fd08eaf4cb2935a195e4bab2352a4506e986dc65e3ba6c696d374081f9b56cb',
     'x86_64-apple-darwin':
-        '2da68a13feb9a691ef3b59d0d6d53af617962ab5ba4673eaf3818778ccd00bec',
+        '29884ee3b2b896fd5ac0ecee624d726667974a4a6df01a66a7ab345325d623a5',
     'x86_64-unknown-linux-gnu':
-        '4cda09438c08eab55cfe4a98325a5722c4ec66865d07da07d38ddc6c36893692',
+        '7b5ce33a881992b285e2aa6cbc785da4138c5bab7c8c9b55c06918bfb1ba0efa',
     'x86_64-pc-windows-msvc':
-        'e3bba8fbb24aed412757d1ea07d6ed1e952ca3f6293b3551e44649601dbe830f',
+        '7500b705855c4f8e70e222ad1192bb46de15629f73a6459a98c9fd4bd06136bc',
 }
 
 NO_PLATFORM = '''