Aug 11 17:13:47.016 INFO checking core_rustc-serialize-0.3.20-v0.3.19patch1 against try#a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195+tmplazy for libc-1
Aug 11 17:13:47.016 INFO running: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 17:13:47.016 INFO creating container for: cargo +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets
Aug 11 17:13:47.016 INFO running `"docker" "create" "-v" "/tmp/crater.llpYIaIr0Je5:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/libc-1/worker-4/try#a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195+tmplazy:/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 +a77dfcc79fe3e7e1a10ae4dccfd4b2e5e0e49195-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "crater"`
Aug 11 17:13:47.218 INFO blam! e61c96d3aad72b51e480ba84d04a881fba809aa36a0cd071e7461716c991fbdb
Aug 11 17:13:47.218 INFO running `"docker" "start" "-a" "e61c96d3aad72b51e480ba84d04a881fba809aa36a0cd071e7461716c991fbdb"`
Aug 11 17:13:48.579 INFO kablam!    Compiling core_collections v0.3.20170409
Aug 11 17:13:50.559 INFO kablam! error: failed to run custom build command for `core_collections v0.3.20170409`
Aug 11 17:13:50.560 INFO kablam! process didn't exit successfully: `/target/debug/build/core_collections-c3108dd52bed276c/build-script-build` (exit code: 101)
Aug 11 17:13:50.560 INFO kablam! --- stderr
Aug 11 17:13:50.560 INFO kablam! thread 'main' panicked at 'Unknown compiler version, upgrade core_collections?', libcore/option.rs:1000:5
Aug 11 17:13:50.560 INFO kablam! stack backtrace:
Aug 11 17:13:50.560 INFO kablam!    0:     0x555c182b0a5e - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h56b478bd6261cdea
Aug 11 17:13:50.560 INFO kablam!                                at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
Aug 11 17:13:50.560 INFO kablam!    1:     0x555c182a77b6 - std::sys_common::backtrace::print::h8838f036695641c1
Aug 11 17:13:50.560 INFO kablam!                                at libstd/sys_common/backtrace.rs:71
Aug 11 17:13:50.560 INFO kablam!                                at libstd/sys_common/backtrace.rs:59
Aug 11 17:13:50.560 INFO kablam!    2:     0x555c182a3e4d - std::panicking::default_hook::{{closure}}::h07e37170271eb3a7
Aug 11 17:13:50.560 INFO kablam!                                at libstd/panicking.rs:211
Aug 11 17:13:50.560 INFO kablam!    3:     0x555c182a3bc0 - std::panicking::default_hook::h1ad13ac34d74cb6f
Aug 11 17:13:50.560 INFO kablam!                                at libstd/panicking.rs:227
Aug 11 17:13:50.560 INFO kablam!    4:     0x555c182a440c - std::panicking::rust_panic_with_hook::h07b48b4bcd79aad0
Aug 11 17:13:50.560 INFO kablam!                                at libstd/panicking.rs:475
Aug 11 17:13:50.560 INFO kablam!    5:     0x555c182a4009 - std::panicking::continue_panic_fmt::hc4081a7dfb4b8a83
Aug 11 17:13:50.560 INFO kablam!                                at libstd/panicking.rs:390
Aug 11 17:13:50.560 INFO kablam!    6:     0x555c182a3f05 - rust_begin_unwind
Aug 11 17:13:50.560 INFO kablam!                                at libstd/panicking.rs:325
Aug 11 17:13:50.560 INFO kablam!    7:     0x555c182f219b - core::panicking::panic_fmt::h2e62773436200852
Aug 11 17:13:50.560 INFO kablam!                                at libcore/panicking.rs:77
Aug 11 17:13:50.560 INFO kablam!    8:     0x555c182ed371 - core::option::expect_failed::hae4a7988ad22c0e3
Aug 11 17:13:50.560 INFO kablam!                                at libcore/option.rs:1000
Aug 11 17:13:50.560 INFO kablam!    9:     0x555c182816a8 - <core::option::Option<T>>::expect::h984ab42dc81b1f96
Aug 11 17:13:50.560 INFO kablam!                                at /checkout/src/libcore/option.rs:312
Aug 11 17:13:50.560 INFO kablam!   10:     0x555c1827f595 - build_script_build::main::h1052c2c5264d716c
Aug 11 17:13:50.560 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/core_collections-0.3.20170409/build.rs:48
Aug 11 17:13:50.560 INFO kablam!   11:     0x555c18280aef - std::rt::lang_start::{{closure}}::hbdc0555dc54e550e
Aug 11 17:13:50.560 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Aug 11 17:13:50.561 INFO kablam!   12:     0x555c182a3ef2 - std::panicking::try::do_call::haa9e0167fafd552a
Aug 11 17:13:50.561 INFO kablam!                                at libstd/rt.rs:59
Aug 11 17:13:50.561 INFO kablam!                                at libstd/panicking.rs:310
Aug 11 17:13:50.561 INFO kablam!   13:     0x555c182c2b39 - __rust_maybe_catch_panic
Aug 11 17:13:50.561 INFO kablam!                                at libpanic_unwind/lib.rs:105
Aug 11 17:13:50.561 INFO kablam!   14:     0x555c182abea5 - std::rt::lang_start_internal::hfce2f8e9f7e3c6bc
Aug 11 17:13:50.561 INFO kablam!                                at libstd/panicking.rs:289
Aug 11 17:13:50.561 INFO kablam!                                at libstd/panic.rs:392
Aug 11 17:13:50.561 INFO kablam!                                at libstd/rt.rs:58
Aug 11 17:13:50.561 INFO kablam!   15:     0x555c18280ac7 - std::rt::lang_start::h99d8b2be5cdb6fd7
Aug 11 17:13:50.561 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Aug 11 17:13:50.561 INFO kablam!   16:     0x555c1827fd89 - main
Aug 11 17:13:50.561 INFO kablam!   17:     0x7f910827782f - __libc_start_main
Aug 11 17:13:50.561 INFO kablam!   18:     0x555c182793b8 - _start
Aug 11 17:13:50.561 INFO kablam!   19:                0x0 - <unknown>
Aug 11 17:13:50.561 INFO kablam! 
Aug 11 17:13:50.561 INFO kablam! su: No module specific data is present
Aug 11 17:13:52.101 INFO running `"docker" "rm" "-f" "e61c96d3aad72b51e480ba84d04a881fba809aa36a0cd071e7461716c991fbdb"`
Aug 11 17:13:52.195 INFO blam! e61c96d3aad72b51e480ba84d04a881fba809aa36a0cd071e7461716c991fbdb