Sep 18 02:13:54.784 INFO checking core_rustc-serialize-0.3.20-v0.3.19patch1 against master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690 for pr-54033
Sep 18 02:13:54.784 INFO running: cargo +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets
Sep 18 02:13:54.784 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54033/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-3/master#cb6d2dfa8923902b0992a1522dc4a45a9d3ba690:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +cb6d2dfa8923902b0992a1522dc4a45a9d3ba690-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 18 02:13:54.968 INFO blam! f10ca1dbe2b234beaef88510add324dab4c2618a1eb5826295c7651e99073d24
Sep 18 02:13:54.970 INFO running `"docker" "start" "-a" "f10ca1dbe2b234beaef88510add324dab4c2618a1eb5826295c7651e99073d24"`
Sep 18 02:13:55.645 INFO kablam! usermod: no changes
Sep 18 02:13:55.703 INFO kablam!    Compiling core_collections v0.3.20170409
Sep 18 02:13:56.927 INFO kablam! error: failed to run custom build command for `core_collections v0.3.20170409`
Sep 18 02:13:56.927 INFO kablam! process didn't exit successfully: `/target/debug/build/core_collections-322c31cf4f20c906/build-script-build` (exit code: 101)
Sep 18 02:13:56.927 INFO kablam! --- stderr
Sep 18 02:13:56.927 INFO kablam! thread 'main' panicked at 'Unknown compiler version, upgrade core_collections?', libcore/option.rs:1000:5
Sep 18 02:13:56.927 INFO kablam! stack backtrace:
Sep 18 02:13:56.927 INFO kablam!    0:     0x555e8f54d30e - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::he3ea2af6595cbcfd
Sep 18 02:13:56.927 INFO kablam!                                at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
Sep 18 02:13:56.927 INFO kablam!    1:     0x555e8f53f1c6 - std::sys_common::backtrace::print::h9a6dc25b0b6db3e6
Sep 18 02:13:56.927 INFO kablam!                                at libstd/sys_common/backtrace.rs:71
Sep 18 02:13:56.927 INFO kablam!                                at libstd/sys_common/backtrace.rs:59
Sep 18 02:13:56.927 INFO kablam!    2:     0x555e8f53db6d - std::panicking::default_hook::{{closure}}::h9f9f4c00fc62ac12
Sep 18 02:13:56.927 INFO kablam!                                at libstd/panicking.rs:211
Sep 18 02:13:56.927 INFO kablam!    3:     0x555e8f53d8e0 - std::panicking::default_hook::h86ebe853ecef0f3c
Sep 18 02:13:56.927 INFO kablam!                                at libstd/panicking.rs:227
Sep 18 02:13:56.927 INFO kablam!    4:     0x555e8f53e12c - std::panicking::rust_panic_with_hook::h6d3348b8dd4df56e
Sep 18 02:13:56.927 INFO kablam!                                at libstd/panicking.rs:477
Sep 18 02:13:56.927 INFO kablam!    5:     0x555e8f53dd29 - std::panicking::continue_panic_fmt::hf441f2da14f71300
Sep 18 02:13:56.927 INFO kablam!                                at libstd/panicking.rs:391
Sep 18 02:13:56.927 INFO kablam!    6:     0x555e8f53dc25 - rust_begin_unwind
Sep 18 02:13:56.927 INFO kablam!                                at libstd/panicking.rs:326
Sep 18 02:13:56.927 INFO kablam!    7:     0x555e8f58d68b - core::panicking::panic_fmt::hff9c4a4843385491
Sep 18 02:13:56.927 INFO kablam!                                at libcore/panicking.rs:77
Sep 18 02:13:56.927 INFO kablam!    8:     0x555e8f588ac1 - core::option::expect_failed::hcb9b6075919a5c54
Sep 18 02:13:56.927 INFO kablam!                                at libcore/option.rs:1000
Sep 18 02:13:56.927 INFO kablam!    9:     0x555e8f51c3b3 - <core::option::Option<T>>::expect::h58c3435caa7e4557
Sep 18 02:13:56.928 INFO kablam!                                at libcore/option.rs:312
Sep 18 02:13:56.928 INFO kablam!   10:     0x555e8f51a59f - build_script_build::main::h161aeddddd7832cb
Sep 18 02:13:56.928 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/core_collections-0.3.20170409/build.rs:48
Sep 18 02:13:56.928 INFO kablam!   11:     0x555e8f51baef - std::rt::lang_start::{{closure}}::h535ea4e206b0998e
Sep 18 02:13:56.928 INFO kablam!                                at libstd/rt.rs:74
Sep 18 02:13:56.928 INFO kablam!   12:     0x555e8f53dc12 - std::panicking::try::do_call::h46a7bcf1f6152e5b
Sep 18 02:13:56.928 INFO kablam!                                at libstd/rt.rs:59
Sep 18 02:13:56.928 INFO kablam!                                at libstd/panicking.rs:310
Sep 18 02:13:56.928 INFO kablam!   13:     0x555e8f55e059 - __rust_maybe_catch_panic
Sep 18 02:13:56.928 INFO kablam!                                at libpanic_unwind/lib.rs:102
Sep 18 02:13:56.928 INFO kablam!   14:     0x555e8f548f75 - std::rt::lang_start_internal::h221cb5896f5e061c
Sep 18 02:13:56.928 INFO kablam!                                at libstd/panicking.rs:289
Sep 18 02:13:56.928 INFO kablam!                                at libstd/panic.rs:392
Sep 18 02:13:56.928 INFO kablam!                                at libstd/rt.rs:58
Sep 18 02:13:56.928 INFO kablam!   15:     0x555e8f51bac7 - std::rt::lang_start::he736d46bdcd215e8
Sep 18 02:13:56.928 INFO kablam!                                at libstd/rt.rs:74
Sep 18 02:13:56.928 INFO kablam!   16:     0x555e8f51ad89 - main
Sep 18 02:13:56.928 INFO kablam!   17:     0x7f0a8af9d82f - __libc_start_main
Sep 18 02:13:56.928 INFO kablam!   18:     0x555e8f514368 - _start
Sep 18 02:13:56.928 INFO kablam!   19:                0x0 - <unknown>
Sep 18 02:13:56.928 INFO kablam! 
Sep 18 02:13:56.933 INFO kablam! su: No module specific data is present
Sep 18 02:13:57.942 INFO running `"docker" "rm" "-f" "f10ca1dbe2b234beaef88510add324dab4c2618a1eb5826295c7651e99073d24"`
Sep 18 02:13:58.164 INFO blam! f10ca1dbe2b234beaef88510add324dab4c2618a1eb5826295c7651e99073d24