Sep 02 00:55:06.544 INFO checking cervus-0.3.6 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 02 00:55:06.544 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 02 00:55:06.544 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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 +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 02 00:55:06.690 INFO blam! 97e0950849738274a595a9a4a877c4cdb6cdef2b516eb02a0fa9bdc9fdc420bd
Sep 02 00:55:06.691 INFO running `"docker" "start" "-a" "97e0950849738274a595a9a4a877c4cdb6cdef2b516eb02a0fa9bdc9fdc420bd"`
Sep 02 00:55:07.453 INFO kablam!    Compiling semver v0.4.1
Sep 02 00:55:10.022 INFO kablam!    Compiling llvm-sys v38.2.0
Sep 02 00:55:13.686 INFO kablam! error: failed to run custom build command for `llvm-sys v38.2.0`
Sep 02 00:55:13.686 INFO kablam! process didn't exit successfully: `/target/debug/build/llvm-sys-7e9812b46ed92fce/build-script-build` (exit code: 101)
Sep 02 00:55:13.686 INFO kablam! --- stdout
Sep 02 00:55:13.686 INFO kablam! Didn't find usable system-wide LLVM.
Sep 02 00:55:13.686 INFO kablam! LLVM_SYS_38_PREFIX not set, not using precompiled binaries
Sep 02 00:55:13.686 INFO kablam! LLVM_SYS_38_AUTOBUILD not set, will not automatically compile LLVM
Sep 02 00:55:13.686 INFO kablam! 
Sep 02 00:55:13.686 INFO kablam! --- stderr
Sep 02 00:55:13.686 INFO kablam! thread 'main' panicked at 'Could not find a compatible version of LLVM', /cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-38.2.0/build.rs:77:9
Sep 02 00:55:13.686 INFO kablam! stack backtrace:
Sep 02 00:55:13.686 INFO kablam!    0:     0x55d97fa4bb3e - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h9bce1f9a537b140d
Sep 02 00:55:13.686 INFO kablam!                                at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
Sep 02 00:55:13.686 INFO kablam!    1:     0x55d97fa3ba46 - std::sys_common::backtrace::print::h7cc2650c15d0dddd
Sep 02 00:55:13.686 INFO kablam!                                at libstd/sys_common/backtrace.rs:71
Sep 02 00:55:13.686 INFO kablam!                                at libstd/sys_common/backtrace.rs:59
Sep 02 00:55:13.686 INFO kablam!    2:     0x55d97fa39dfd - std::panicking::default_hook::{{closure}}::hec52538d990412d0
Sep 02 00:55:13.686 INFO kablam!                                at libstd/panicking.rs:211
Sep 02 00:55:13.686 INFO kablam!    3:     0x55d97fa39b70 - std::panicking::default_hook::h49c7c9d5f399092e
Sep 02 00:55:13.687 INFO kablam!                                at libstd/panicking.rs:227
Sep 02 00:55:13.687 INFO kablam!    4:     0x55d97fa3a46c - std::panicking::rust_panic_with_hook::h56b934afa6264269
Sep 02 00:55:13.687 INFO kablam!                                at libstd/panicking.rs:477
Sep 02 00:55:13.687 INFO kablam!    5:     0x55d97fa2b76f - std::panicking::begin_panic::h6e22ae58a0cb3250
Sep 02 00:55:13.687 INFO kablam!                                at /checkout/src/libstd/panicking.rs:411
Sep 02 00:55:13.687 INFO kablam!    6:     0x55d97f888051 - core::ops::function::FnOnce::call_once::hf433fa5a4cbaea16
Sep 02 00:55:13.687 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-38.2.0/build.rs:77
Sep 02 00:55:13.687 INFO kablam!                                at /checkout/src/libcore/ops/function.rs:238
Sep 02 00:55:13.687 INFO kablam!    7:     0x55d97f8907a2 - <lazy_static::lazy::Lazy<T>>::get::{{closure}}::h5df6e61654ff8027
Sep 02 00:55:13.687 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-0.2.11/src/lazy.rs:24
Sep 02 00:55:13.687 INFO kablam!    8:     0x55d97f8906aa - std::sync::once::Once::call_once::{{closure}}::h49b822e4c540a8c4
Sep 02 00:55:13.687 INFO kablam!                                at /checkout/src/libstd/sync/once.rs:234
Sep 02 00:55:13.687 INFO kablam!    9:     0x55d97fa4deb0 - std::sync::once::Once::call_inner::he3e51763d8176c11
Sep 02 00:55:13.687 INFO kablam!                                at libstd/sync/once.rs:351
Sep 02 00:55:13.687 INFO kablam!   10:     0x55d97f89063a - std::sync::once::Once::call_once::h58d7f20dc71b0ff0
Sep 02 00:55:13.687 INFO kablam!                                at /checkout/src/libstd/sync/once.rs:234
Sep 02 00:55:13.687 INFO kablam!   11:     0x55d97f88364e - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::hf061f7025cb8180c
Sep 02 00:55:13.687 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-0.2.11/src/lazy.rs:23
Sep 02 00:55:13.687 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-38.2.0/<__lazy_static_internal macros>:13
Sep 02 00:55:13.687 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-38.2.0/<__lazy_static_internal macros>:14
Sep 02 00:55:13.687 INFO kablam!   12:     0x55d97f881989 - build_script_build::llvm_config::h6c73ec833c7cdd81
Sep 02 00:55:13.687 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-38.2.0/build.rs:163
Sep 02 00:55:13.687 INFO kablam!   13:     0x55d97f882864 - build_script_build::main::hccbfb3ea0d57ef3b
Sep 02 00:55:13.687 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-38.2.0/build.rs:224
Sep 02 00:55:13.687 INFO kablam!   14:     0x55d97f89044f - std::rt::lang_start::{{closure}}::h6bc463b17084217a
Sep 02 00:55:13.687 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Sep 02 00:55:13.687 INFO kablam!   15:     0x55d97fa39f02 - std::panicking::try::do_call::h09be9541d3992dd3
Sep 02 00:55:13.687 INFO kablam!                                at libstd/rt.rs:59
Sep 02 00:55:13.687 INFO kablam!                                at libstd/panicking.rs:310
Sep 02 00:55:13.687 INFO kablam!   16:     0x55d97fa5d4b9 - __rust_maybe_catch_panic
Sep 02 00:55:13.687 INFO kablam!                                at libpanic_unwind/lib.rs:103
Sep 02 00:55:13.687 INFO kablam!   17:     0x55d97fa472e5 - std::rt::lang_start_internal::h395b9eb1beda0e43
Sep 02 00:55:13.688 INFO kablam!                                at libstd/panicking.rs:289
Sep 02 00:55:13.688 INFO kablam!                                at libstd/panic.rs:392
Sep 02 00:55:13.688 INFO kablam!                                at libstd/rt.rs:58
Sep 02 00:55:13.688 INFO kablam!   18:     0x55d97f890427 - std::rt::lang_start::h867f06c34f3253ba
Sep 02 00:55:13.688 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Sep 02 00:55:13.688 INFO kablam!   19:     0x55d97f883699 - main
Sep 02 00:55:13.688 INFO kablam!   20:     0x7f5ab61a082f - __libc_start_main
Sep 02 00:55:13.688 INFO kablam!   21:     0x55d97f8805e8 - _start
Sep 02 00:55:13.688 INFO kablam!   22:                0x0 - <unknown>
Sep 02 00:55:13.688 INFO kablam! 
Sep 02 00:55:13.688 INFO kablam! su: No module specific data is present
Sep 02 00:55:14.282 INFO running `"docker" "rm" "-f" "97e0950849738274a595a9a4a877c4cdb6cdef2b516eb02a0fa9bdc9fdc420bd"`
Sep 02 00:55:14.438 INFO blam! 97e0950849738274a595a9a4a877c4cdb6cdef2b516eb02a0fa9bdc9fdc420bd