update cargo

[steveklabnik]

Beta backport of #54334

[rust-highfive]

r? @aturon

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[rust-highfive]

⚠️ Warning ⚠️

• Pull requests are usually filed against the master branch for this repo, but this one is against beta. Please double check that you specified the right target!
• These commits modify submodules.

[steveklabnik]

@alexcrichton says this is incorrect; sending in a new PR to the other branch

[rust-highfive]

The job x86_64-gnu-llvm-5.0 of your PR failed on Travis (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

[00:03:19] extracting /checkout/obj/build/cache/2018-09-13/cargo-0.30.0-x86_64-unknown-linux-gnu.tar.gz
[00:03:19] error: failed to resolve patches for `https://github.com/rust-lang/cargo`
[00:03:19] 
[00:03:19] Caused by:
[00:03:19]   patch for `cargo` in `https://github.com/rust-lang/cargo` did not resolve to any crates. If this is unexpected, you may wish to consult: https://github.com/rust-lang/cargo/issues/4678
[00:03:19] failed to run: /checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo build --manifest-path /checkout/src/bootstrap/Cargo.toml --locked
[00:03:19] make: *** [prepare] Error 1
[00:03:19] Makefile:81: recipe for target 'prepare' failed
[00:03:20] Command failed. Attempt 2/5:
[00:03:20] error: failed to resolve patches for `https://github.com/rust-lang/cargo`
[00:03:20] error: failed to resolve patches for `https://github.com/rust-lang/cargo`
[00:03:20] 
[00:03:20] Caused by:
[00:03:20]   patch for `cargo` in `https://github.com/rust-lang/cargo` did not resolve to any crates. If this is unexpected, you may wish to consult: https://github.com/rust-lang/cargo/issues/4678
[00:03:20] failed to run: /checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo build --manifest-path /checkout/src/bootstrap/Cargo.toml --locked
[00:03:20] make: *** [prepare] Error 1
[00:03:20] Makefile:81: recipe for target 'prepare' failed
[00:03:22] Command failed. Attempt 3/5:
[00:03:22] error: failed to resolve patches for `https://github.com/rust-lang/cargo`
[00:03:22] error: failed to resolve patches for `https://github.com/rust-lang/cargo`
[00:03:22] 
[00:03:22] Caused by:
[00:03:22]   patch for `cargo` in `https://github.com/rust-lang/cargo` did not resolve to any crates. If this is unexpected, you may wish to consult: https://github.com/rust-lang/cargo/issues/4678
[00:03:22] failed to run: /checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo build --manifest-path /checkout/src/bootstrap/Cargo.toml --locked
[00:03:22] Makefile:81: recipe for target 'prepare' failed
[00:03:22] make: *** [prepare] Error 1
[00:03:25] Command failed. Attempt 4/5:
[00:03:25] error: failed to resolve patches for `https://github.com/rust-lang/cargo`
[00:03:25] error: failed to resolve patches for `https://github.com/rust-lang/cargo`
[00:03:25] 
[00:03:25] Caused by:
[00:03:25]   patch for `cargo` in `https://github.com/rust-lang/cargo` did not resolve to any crates. If this is unexpected, you may wish to consult: https://github.com/rust-lang/cargo/issues/4678
[00:03:25] failed to run: /checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo build --manifest-path /checkout/src/bootstrap/Cargo.toml --locked
[00:03:25] Makefile:81: recipe for target 'prepare' failed
[00:03:25] make: *** [prepare] Error 1
[00:03:29] Command failed. Attempt 5/5:
[00:03:29] error: failed to resolve patches for `https://github.com/rust-lang/cargo`
[00:03:29] error: failed to resolve patches for `https://github.com/rust-lang/cargo`
[00:03:29] 
[00:03:29] Caused by:
[00:03:29]   patch for `cargo` in `https://github.com/rust-lang/cargo` did not resolve to any crates. If this is unexpected, you may wish to consult: https://github.com/rust-lang/cargo/issues/4678
[00:03:29] failed to run: /checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo build --manifest-path /checkout/src/bootstrap/Cargo.toml --locked
[00:03:29] Makefile:81: recipe for target 'prepare' failed
[00:03:29] make: *** [prepare] Error 1
[00:03:29] The command has failed after 5 attempts.
travis_time:end:1bef0cdc:start=1537307366723867817,finish=1537307576427682068,duration=209703814251
---
travis_time:end:24cbe56e:start=1537307576827715140,finish=1537307576833393414,duration=5678274
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:342d5ad8
$ ln -s . checkout && for CORE in obj/cores/core.*; do EXE=$(echo $CORE | sed 's|obj/cores/core\.[0-9]*\.!checkout!\(.*\)|\1|;y|!|/|'); if [ -f "$EXE" ]; then printf travis_fold":start:crashlog\n\033[31;1m%s\033[0m\n" "$CORE"; gdb -q -c "$CORE" "$EXE" -iex 'set auto-load off' -iex 'dir src/' -iex 'set sysroot .' -ex bt -ex q; echo travis_fold":"end:crashlog; fi; done || true
travis_fold:end:after_failure.4
travis_fold:start:after_failure.5
travis_time:start:0437e14c
travis_time:start:0437e14c
$ cat ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers || true
cat: ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers: No such file or directory
travis_fold:end:after_failure.5
travis_fold:start:after_failure.6
travis_time:start:07946230
$ dmesg | grep -i kill

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