Sep 10 21:28:14.167 INFO checking cervus-0.3.6 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 21:28:14.167 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 21:28:14.167 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-4/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 21:28:14.327 INFO blam! 1cbb9571093d4e187da659f11046761c6994dee0265db620646d6cd788c8ca5a
Sep 10 21:28:14.329 INFO running `"docker" "start" "-a" "1cbb9571093d4e187da659f11046761c6994dee0265db620646d6cd788c8ca5a"`
Sep 10 21:28:14.912 INFO kablam! usermod: no changes
Sep 10 21:28:14.980 INFO kablam!    Compiling semver-parser v0.6.2
Sep 10 21:28:15.933 INFO kablam!    Compiling semver v0.4.1
Sep 10 21:28:17.354 INFO kablam!    Compiling llvm-sys v38.2.0
Sep 10 21:28:19.850 INFO kablam! error: failed to run custom build command for `llvm-sys v38.2.0`
Sep 10 21:28:19.850 INFO kablam! process didn't exit successfully: `/target/debug/build/llvm-sys-4c09b1e520ddd13e/build-script-build` (exit code: 101)
Sep 10 21:28:19.850 INFO kablam! --- stdout
Sep 10 21:28:19.850 INFO kablam! Didn't find usable system-wide LLVM.
Sep 10 21:28:19.850 INFO kablam! LLVM_SYS_38_PREFIX not set, not using precompiled binaries
Sep 10 21:28:19.850 INFO kablam! LLVM_SYS_38_AUTOBUILD not set, will not automatically compile LLVM
Sep 10 21:28:19.850 INFO kablam! 
Sep 10 21:28:19.850 INFO kablam! --- stderr
Sep 10 21:28:19.850 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 10 21:28:19.850 INFO kablam! stack backtrace:
Sep 10 21:28:19.850 INFO kablam!    0:     0x5616f8bce6be - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::hd1ddf909c3007e6f
Sep 10 21:28:19.850 INFO kablam!                                at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
Sep 10 21:28:19.850 INFO kablam!    1:     0x5616f8bbe666 - std::sys_common::backtrace::print::h8af87ee7033cea48
Sep 10 21:28:19.850 INFO kablam!                                at libstd/sys_common/backtrace.rs:71
Sep 10 21:28:19.850 INFO kablam!                                at libstd/sys_common/backtrace.rs:59
Sep 10 21:28:19.850 INFO kablam!    2:     0x5616f8bbc9fd - std::panicking::default_hook::{{closure}}::hb070ea60f8cf9536
Sep 10 21:28:19.850 INFO kablam!                                at libstd/panicking.rs:211
Sep 10 21:28:19.850 INFO kablam!    3:     0x5616f8bbc770 - std::panicking::default_hook::h108b3d1da16fc0ff
Sep 10 21:28:19.850 INFO kablam!                                at libstd/panicking.rs:227
Sep 10 21:28:19.850 INFO kablam!    4:     0x5616f8bbd06c - std::panicking::rust_panic_with_hook::he22c3c9d0a2321e8
Sep 10 21:28:19.850 INFO kablam!                                at libstd/panicking.rs:477
Sep 10 21:28:19.850 INFO kablam!    5:     0x5616f8b1f88f - std::panicking::begin_panic::h033c7f2bf8dce34e
Sep 10 21:28:19.850 INFO kablam!                                at /checkout/src/libstd/panicking.rs:411
Sep 10 21:28:19.850 INFO kablam!    6:     0x5616f8a0ce98 - core::ops::function::FnOnce::call_once::h94cd23d556c5f05b
Sep 10 21:28:19.850 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-38.2.0/build.rs:77
Sep 10 21:28:19.850 INFO kablam!                                at /checkout/src/libcore/ops/function.rs:238
Sep 10 21:28:19.851 INFO kablam!    7:     0x5616f8a16862 - <lazy_static::lazy::Lazy<T>>::get::{{closure}}::h7698f185d989d815
Sep 10 21:28:19.851 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-0.2.11/src/lazy.rs:24
Sep 10 21:28:19.851 INFO kablam!    8:     0x5616f8a1680a - std::sync::once::Once::call_once::{{closure}}::h2c4a47e6e36cff98
Sep 10 21:28:19.851 INFO kablam!                                at /checkout/src/libstd/sync/once.rs:230
Sep 10 21:28:19.851 INFO kablam!    9:     0x5616f8bbc370 - std::sync::once::Once::call_inner::ha798955cd9cf7035
Sep 10 21:28:19.851 INFO kablam!                                at libstd/sync/once.rs:396
Sep 10 21:28:19.851 INFO kablam!   10:     0x5616f8a166ee - std::sync::once::Once::call_once::h4eb633eb791e63ef
Sep 10 21:28:19.851 INFO kablam!                                at /checkout/src/libstd/sync/once.rs:230
Sep 10 21:28:19.851 INFO kablam!   11:     0x5616f8a084de - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::h6df50dd8922f39e1
Sep 10 21:28:19.851 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-0.2.11/src/lazy.rs:23
Sep 10 21:28:19.851 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-38.2.0/<__lazy_static_internal macros>:13
Sep 10 21:28:19.851 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-38.2.0/<__lazy_static_internal macros>:14
Sep 10 21:28:19.851 INFO kablam!   12:     0x5616f8a06839 - build_script_build::llvm_config::hec219227feb09a12
Sep 10 21:28:19.851 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-38.2.0/build.rs:163
Sep 10 21:28:19.851 INFO kablam!   13:     0x5616f8a07714 - build_script_build::main::h8769b93b74d925fe
Sep 10 21:28:19.851 INFO kablam!                                at /cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-38.2.0/build.rs:224
Sep 10 21:28:19.851 INFO kablam!   14:     0x5616f8a165df - std::rt::lang_start::{{closure}}::hc3a1b712b1a016a8
Sep 10 21:28:19.851 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Sep 10 21:28:19.851 INFO kablam!   15:     0x5616f8bbcb02 - std::panicking::try::do_call::hd17f7bbbc80cfc74
Sep 10 21:28:19.851 INFO kablam!                                at libstd/rt.rs:59
Sep 10 21:28:19.851 INFO kablam!                                at libstd/panicking.rs:310
Sep 10 21:28:19.851 INFO kablam!   16:     0x5616f8be0d09 - __rust_maybe_catch_panic
Sep 10 21:28:19.851 INFO kablam!                                at libpanic_unwind/lib.rs:103
Sep 10 21:28:19.851 INFO kablam!   17:     0x5616f8bc9ec5 - std::rt::lang_start_internal::h8194e5e3064ac4bd
Sep 10 21:28:19.851 INFO kablam!                                at libstd/panicking.rs:289
Sep 10 21:28:19.851 INFO kablam!                                at libstd/panic.rs:392
Sep 10 21:28:19.851 INFO kablam!                                at libstd/rt.rs:58
Sep 10 21:28:19.851 INFO kablam!   18:     0x5616f8a165b7 - std::rt::lang_start::hc98e9cc3064a4854
Sep 10 21:28:19.851 INFO kablam!                                at /checkout/src/libstd/rt.rs:74
Sep 10 21:28:19.851 INFO kablam!   19:     0x5616f8a08529 - main
Sep 10 21:28:19.851 INFO kablam!   20:     0x7fc7047d382f - __libc_start_main
Sep 10 21:28:19.851 INFO kablam!   21:     0x5616f8a05498 - _start
Sep 10 21:28:19.851 INFO kablam!   22:                0x0 - <unknown>
Sep 10 21:28:19.851 INFO kablam! 
Sep 10 21:28:19.851 INFO kablam! su: No module specific data is present
Sep 10 21:28:20.678 INFO running `"docker" "rm" "-f" "1cbb9571093d4e187da659f11046761c6994dee0265db620646d6cd788c8ca5a"`
Sep 10 21:28:20.813 INFO blam! 1cbb9571093d4e187da659f11046761c6994dee0265db620646d6cd788c8ca5a