Sep 02 17:34:25.082 INFO checking core_rustc-serialize-0.3.20-v0.3.19patch1 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 17:34:25.083 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 17:34:25.083 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/worker-2/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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=500" "-e" "CMD=cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 17:34:25.269 INFO blam! 103290a8bddc778047dd7db416a8fdf062690915b168dd587686c33d547340b0
Sep 02 17:34:25.271 INFO running `"docker" "start" "-a" "103290a8bddc778047dd7db416a8fdf062690915b168dd587686c33d547340b0"`
Sep 02 17:34:25.941 INFO kablam!    Compiling core_collections v0.3.20170409
Sep 02 17:34:27.391 INFO kablam! error: failed to run custom build command for `core_collections v0.3.20170409`
Sep 02 17:34:27.391 INFO kablam! process didn't exit successfully: `/target/debug/build/core_collections-14c7dd063ae94300/build-script-build` (exit code: 101)
Sep 02 17:34:27.391 INFO kablam! --- stderr
Sep 02 17:34:27.391 INFO kablam! thread 'main' panicked at 'Unknown compiler version, upgrade core_collections?', libcore/option.rs:1000:5
Sep 02 17:34:27.391 INFO kablam! stack backtrace:
Sep 02 17:34:27.391 INFO kablam!    0:     0x558b2f11e60e - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::ha200f2cd684ebd49
Sep 02 17:34:27.391 INFO kablam!                                at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
Sep 02 17:34:27.391 INFO kablam!    1:     0x558b2f1104b6 - std::sys_common::backtrace::print::hfe3d4e47b4c8e48c
Sep 02 17:34:27.391 INFO kablam!                                at libstd/sys_common/backtrace.rs:71
Sep 02 17:34:27.391 INFO kablam!                                at libstd/sys_common/backtrace.rs:59
Sep 02 17:34:27.391 INFO kablam!    2:     0x558b2f10ee2d - std::panicking::default_hook::{{closure}}::hf56af31102a42941
Sep 02 17:34:27.391 INFO kablam!                                at libstd/panicking.rs:211
Sep 02 17:34:27.391 INFO kablam!    3:     0x558b2f10eba0 - std::panicking::default_hook::ha51b5d4eb7ec526d
Sep 02 17:34:27.391 INFO kablam!                                at libstd/panicking.rs:227
Sep 02 17:34:27.391 INFO kablam!    4:     0x558b2f10f3ec - std::panicking::rust_panic_with_hook::hd585483f9daec810
Sep 02 17:34:27.391 INFO kablam!                                at libstd/panicking.rs:477
Sep 02 17:34:27.391 INFO kablam!    5:     0x558b2f10efe9 - std::panicking::continue_panic_fmt::h918075cde557b461
Sep 02 17:34:27.391 INFO kablam!                                at libstd/panicking.rs:391
Sep 02 17:34:27.391 INFO kablam!    6:     0x558b2f10eee5 - rust_begin_unwind
Sep 02 17:34:27.391 INFO kablam!                                at libstd/panicking.rs:326
Sep 02 17:34:27.391 INFO kablam!    7:     0x558b2f15fb4b - core::panicking::panic_fmt::h79198a922822fff3
Sep 02 17:34:27.392 INFO kablam!                                at libcore/panicking.rs:77
Sep 02 17:34:27.392 INFO kablam!    8:     0x558b2f15af31 - core::option::expect_failed::h575e70cfd6a6c578
Sep 02 17:34:27.392 INFO kablam!                                at libcore/option.rs:1000
Sep 02 17:34:27.392 INFO kablam!    9:     0x558b2f0ee3e3 - <core::option::Option<T>>::expect::hfa6c3cace93eba7c
Sep 02 17:34:27.392 INFO kablam!                                at /checkout/src/libcore/option.rs:312
Sep 02 17:34:27.392 INFO kablam!   10:     0x558b2f0ec5c5 - build_script_build::main::h6b38b9b9bdadb176
Sep 02 17:34:27.392 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/core_collections-0.3.20170409/build.rs:48
Sep 02 17:34:27.392 INFO kablam!   11:     0x558b2f0edb1f - std::rt::lang_start::{{closure}}::hc1548228877299fb
Sep 02 17:34:27.392 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Sep 02 17:34:27.392 INFO kablam!   12:     0x558b2f10eed2 - std::panicking::try::do_call::hea63f5620482e896
Sep 02 17:34:27.392 INFO kablam!                                at libstd/rt.rs:59
Sep 02 17:34:27.392 INFO kablam!                                at libstd/panicking.rs:310
Sep 02 17:34:27.392 INFO kablam!   13:     0x558b2f1307b9 - __rust_maybe_catch_panic
Sep 02 17:34:27.392 INFO kablam!                                at libpanic_unwind/lib.rs:103
Sep 02 17:34:27.392 INFO kablam!   14:     0x558b2f11a215 - std::rt::lang_start_internal::hfd6e69240f0360f8
Sep 02 17:34:27.392 INFO kablam!                                at libstd/panicking.rs:289
Sep 02 17:34:27.392 INFO kablam!                                at libstd/panic.rs:392
Sep 02 17:34:27.392 INFO kablam!                                at libstd/rt.rs:58
Sep 02 17:34:27.392 INFO kablam!   15:     0x558b2f0edaf7 - std::rt::lang_start::hd67f421009314f85
Sep 02 17:34:27.392 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Sep 02 17:34:27.392 INFO kablam!   16:     0x558b2f0ecdb9 - main
Sep 02 17:34:27.392 INFO kablam!   17:     0x7ff6dbb8082f - __libc_start_main
Sep 02 17:34:27.392 INFO kablam!   18:     0x558b2f0e6388 - _start
Sep 02 17:34:27.392 INFO kablam!   19:                0x0 - <unknown>
Sep 02 17:34:27.393 INFO kablam! 
Sep 02 17:34:27.393 INFO kablam! su: No module specific data is present
Sep 02 17:34:27.759 INFO running `"docker" "rm" "-f" "103290a8bddc778047dd7db416a8fdf062690915b168dd587686c33d547340b0"`
Sep 02 17:34:27.903 INFO blam! 103290a8bddc778047dd7db416a8fdf062690915b168dd587686c33d547340b0