Aug 11 17:13:47.306 INFO checking core_rustc-serialize-0.3.20-v0.3.19patch1 against master#f6d43ed84207c7e58f363f46e5a438ff40f2b311 for libc-1
Aug 11 17:13:47.306 INFO running: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 17:13:47.306 INFO creating container for: cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets
Aug 11 17:13:47.306 INFO running `"docker" "create" "-v" "/tmp/crater.cHczTsMTBgI0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-1/master#f6d43ed84207c7e58f363f46e5a438ff40f2b311:/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" "-v" "/home/ec2-user/crater/./work/local/cargo-home/git:/cargo-home/git:rw,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +f6d43ed84207c7e58f363f46e5a438ff40f2b311-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 11 17:13:47.559 INFO blam! d5f0e1adad4fdc4bdb9dd225aeccab2c72d043a532992b07822282a22e58140b
Aug 11 17:13:47.560 INFO running `"docker" "start" "-a" "d5f0e1adad4fdc4bdb9dd225aeccab2c72d043a532992b07822282a22e58140b"`
Aug 11 17:13:48.608 INFO kablam!    Compiling core_collections v0.3.20170409
Aug 11 17:13:50.642 INFO kablam! error: failed to run custom build command for `core_collections v0.3.20170409`
Aug 11 17:13:50.642 INFO kablam! process didn't exit successfully: `/target/debug/build/core_collections-d7c7f7ccff63ab32/build-script-build` (exit code: 101)
Aug 11 17:13:50.642 INFO kablam! --- stderr
Aug 11 17:13:50.642 INFO kablam! thread 'main' panicked at 'Unknown compiler version, upgrade core_collections?', libcore/option.rs:1000:5
Aug 11 17:13:50.642 INFO kablam! stack backtrace:
Aug 11 17:13:50.642 INFO kablam!    0:     0x562fb78d4a5e - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h72fea86a8d8797cb
Aug 11 17:13:50.642 INFO kablam!                                at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
Aug 11 17:13:50.642 INFO kablam!    1:     0x562fb78cb7b6 - std::sys_common::backtrace::print::h18c103247e00293e
Aug 11 17:13:50.642 INFO kablam!                                at libstd/sys_common/backtrace.rs:71
Aug 11 17:13:50.642 INFO kablam!                                at libstd/sys_common/backtrace.rs:59
Aug 11 17:13:50.642 INFO kablam!    2:     0x562fb78c7e4d - std::panicking::default_hook::{{closure}}::h3ad4677b789cfc8f
Aug 11 17:13:50.643 INFO kablam!                                at libstd/panicking.rs:211
Aug 11 17:13:50.643 INFO kablam!    3:     0x562fb78c7bc0 - std::panicking::default_hook::h051a84cdda22d0e9
Aug 11 17:13:50.643 INFO kablam!                                at libstd/panicking.rs:227
Aug 11 17:13:50.643 INFO kablam!    4:     0x562fb78c840c - std::panicking::rust_panic_with_hook::h3c6af9682333009d
Aug 11 17:13:50.643 INFO kablam!                                at libstd/panicking.rs:475
Aug 11 17:13:50.643 INFO kablam!    5:     0x562fb78c8009 - std::panicking::continue_panic_fmt::hbb7df46bc1faae93
Aug 11 17:13:50.643 INFO kablam!                                at libstd/panicking.rs:390
Aug 11 17:13:50.643 INFO kablam!    6:     0x562fb78c7f05 - rust_begin_unwind
Aug 11 17:13:50.643 INFO kablam!                                at libstd/panicking.rs:325
Aug 11 17:13:50.643 INFO kablam!    7:     0x562fb791618b - core::panicking::panic_fmt::hcd12fc205ff6ce43
Aug 11 17:13:50.643 INFO kablam!                                at libcore/panicking.rs:77
Aug 11 17:13:50.643 INFO kablam!    8:     0x562fb7911361 - core::option::expect_failed::ha3bf6812cebb6db7
Aug 11 17:13:50.644 INFO kablam!                                at libcore/option.rs:1000
Aug 11 17:13:50.644 INFO kablam!    9:     0x562fb78a56a8 - <core::option::Option<T>>::expect::h8aeb02aa5210ceb4
Aug 11 17:13:50.644 INFO kablam!                                at /checkout/src/libcore/option.rs:312
Aug 11 17:13:50.644 INFO kablam!   10:     0x562fb78a3595 - build_script_build::main::h3b8a10c485fbe7cd
Aug 11 17:13:50.644 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/core_collections-0.3.20170409/build.rs:48
Aug 11 17:13:50.644 INFO kablam!   11:     0x562fb78a4aef - std::rt::lang_start::{{closure}}::h9ea08b1a8de301b6
Aug 11 17:13:50.644 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Aug 11 17:13:50.644 INFO kablam!   12:     0x562fb78c7ef2 - std::panicking::try::do_call::h713e323c3e2f245d
Aug 11 17:13:50.644 INFO kablam!                                at libstd/rt.rs:59
Aug 11 17:13:50.644 INFO kablam!                                at libstd/panicking.rs:310
Aug 11 17:13:50.644 INFO kablam!   13:     0x562fb78e6b29 - __rust_maybe_catch_panic
Aug 11 17:13:50.644 INFO kablam!                                at libpanic_unwind/lib.rs:105
Aug 11 17:13:50.644 INFO kablam!   14:     0x562fb78cfea5 - std::rt::lang_start_internal::hc2204b482a71dd4a
Aug 11 17:13:50.644 INFO kablam!                                at libstd/panicking.rs:289
Aug 11 17:13:50.644 INFO kablam!                                at libstd/panic.rs:392
Aug 11 17:13:50.644 INFO kablam!                                at libstd/rt.rs:58
Aug 11 17:13:50.644 INFO kablam!   15:     0x562fb78a4ac7 - std::rt::lang_start::he79d2bf062bf152f
Aug 11 17:13:50.644 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Aug 11 17:13:50.644 INFO kablam!   16:     0x562fb78a3d89 - main
Aug 11 17:13:50.644 INFO kablam!   17:     0x7f432d70a82f - __libc_start_main
Aug 11 17:13:50.644 INFO kablam!   18:     0x562fb789d3b8 - _start
Aug 11 17:13:50.644 INFO kablam!   19:                0x0 - <unknown>
Aug 11 17:13:50.644 INFO kablam! 
Aug 11 17:13:50.648 INFO kablam! su: No module specific data is present
Aug 11 17:13:52.138 INFO running `"docker" "rm" "-f" "d5f0e1adad4fdc4bdb9dd225aeccab2c72d043a532992b07822282a22e58140b"`
Aug 11 17:13:52.233 INFO blam! d5f0e1adad4fdc4bdb9dd225aeccab2c72d043a532992b07822282a22e58140b