[INFO] updating cached repository fexolm/jfec
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fexolm/jfec
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fexolm/jfec" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/fexolm/jfec"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/fexolm/jfec'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fexolm/jfec" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/fexolm/jfec"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/fexolm/jfec'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6de42e1766324b065d6ef53eb278677017d115bc
[INFO] sha for GitHub repo fexolm/jfec: 6de42e1766324b065d6ef53eb278677017d115bc
[INFO] validating manifest of fexolm/jfec on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fexolm/jfec on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fexolm/jfec
[INFO] finished frobbing fexolm/jfec
[INFO] frobbed toml for fexolm/jfec written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/fexolm/jfec/Cargo.toml
[INFO] started frobbing fexolm/jfec
[INFO] finished frobbing fexolm/jfec
[INFO] frobbed toml for fexolm/jfec written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/fexolm/jfec/Cargo.toml
[INFO] crate fexolm/jfec already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking fexolm/jfec against try#75eff020d0923c035c2fe220db4a0465cd847048 for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-6/try#75eff020d0923c035c2fe220db4a0465cd847048:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/fexolm/jfec:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 4dae5920816dba5dc4ad58cb7f1c30cef4a1da997e95320b40514c17cb4363c3
[INFO] running `"docker" "start" "-a" "4dae5920816dba5dc4ad58cb7f1c30cef4a1da997e95320b40514c17cb4363c3"`
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling regex v1.1.5
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]    Compiling pest v2.1.0
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking criterion-stats v0.1.3
[INFO] [stderr]     Checking simplelog v0.4.4
[INFO] [stderr]     Checking criterion-plot v0.1.3
[INFO] [stderr]    Compiling pest_meta v2.1.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling llvm-sys v70.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr] error: failed to run custom build command for `llvm-sys v70.1.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/llvm-sys-34d2b94022be3f83/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] Found LLVM version 3.8.0 on PATH, but need 7.0.0.
[INFO] [stderr] Didn't find usable system-wide LLVM.
[INFO] [stderr] No suitable version of LLVM was found system-wide or pointed
[INFO] [stderr]                   to by LLVM_SYS_70_PREFIX.
[INFO] [stderr]                   
[INFO] [stderr]                   Consider using `llvmenv` to compile an appropriate copy of LLVM, and
[INFO] [stderr]                   refer to the llvm-sys documentation for more information.
[INFO] [stderr]                   
[INFO] [stderr]                   llvm-sys: https://crates.io/crates/llvm-sys
[INFO] [stderr]                   llvmenv: https://crates.io/crates/llvmenv
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'Could not find a compatible version of LLVM', /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:73:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55854ef0f92b - backtrace::backtrace::libunwind::trace::h223ecf9e25ea61ed
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55854ef0f92b - backtrace::backtrace::trace_unsynchronized::h19c402a6233e597e
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.34/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55854ef0f92b - std::sys_common::backtrace::_print::h14947081e8315ba5
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55854ef0f92b - std::sys_common::backtrace::print::h87cad3f0b50b59c5
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55854ef0f92b - std::panicking::default_hook::{{closure}}::h497a714df189bd9d
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x55854ef0f606 - std::panicking::default_hook::h8dc4a117b759bd96
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x55854ef1009d - std::panicking::rust_panic_with_hook::h4cbf0f096b75f262
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x55854ee79315 - std::panicking::begin_panic::h75f0de070abe93c3
[INFO] [stderr]                                at /rustc/75eff020d0923c035c2fe220db4a0465cd847048/src/libstd/panicking.rs:411
[INFO] [stderr]    8:     0x55854ec5fc83 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__static_ref_initialize::hfdaa909ea9c36a65
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:73
[INFO] [stderr]    9:     0x55854ec5fc83 - core::ops::function::FnOnce::call_once::h5d2ece060fa0fe38
[INFO] [stderr]                                at /rustc/75eff020d0923c035c2fe220db4a0465cd847048/src/libcore/ops/function.rs:235
[INFO] [stderr]   10:     0x55854ec5e18f - lazy_static::lazy::Lazy<T>::get::{{closure}}::hc9a786c161c9c96b
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.3.0/src/inline_lazy.rs:28
[INFO] [stderr]   11:     0x55854ec6300b - std::sync::once::Once::call_once::{{closure}}::h9a3bd506e7388ab8
[INFO] [stderr]                                at /rustc/75eff020d0923c035c2fe220db4a0465cd847048/src/libstd/sync/once.rs:225
[INFO] [stderr]   12:     0x55854ef0cc68 - std::sync::once::Once::call_inner::hd76e4a7bc585ddfc
[INFO] [stderr]                                at src/libstd/sync/once.rs:392
[INFO] [stderr]   13:     0x55854ec62ea3 - std::sync::once::Once::call_once::hadb46f90e46ed726
[INFO] [stderr]                                at /rustc/75eff020d0923c035c2fe220db4a0465cd847048/src/libstd/sync/once.rs:225
[INFO] [stderr]   14:     0x55854ec597b5 - lazy_static::lazy::Lazy<T>::get::h8be1e55fa3d67349
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.3.0/src/inline_lazy.rs:27
[INFO] [stderr]   15:     0x55854ec597b5 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__stability::h07b4643e743591af
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/<::lazy_static::__lazy_static_internal macros>:17
[INFO] [stderr]   16:     0x55854ec597b5 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::hc9dfe6b297c6f1ee
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/<::lazy_static::__lazy_static_internal macros>:19
[INFO] [stderr]   17:     0x55854ec5707a - build_script_build::llvm_config::h7dafafddd503b582
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:167
[INFO] [stderr]   18:     0x55854ec586f0 - build_script_build::get_llvm_cflags::h1ce6c17ae2e0bb15
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:273
[INFO] [stderr]   19:     0x55854ec58aee - build_script_build::main::h6e5f7861ded12f61
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:300
[INFO] [stderr]   20:     0x55854ec5e290 - std::rt::lang_start::{{closure}}::h038c79dcfbc1010a
[INFO] [stderr]                                at /rustc/75eff020d0923c035c2fe220db4a0465cd847048/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x55854ef0faa3 - std::rt::lang_start_internal::{{closure}}::hb2a68345cd4d50f8
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   22:     0x55854ef0faa3 - std::panicking::try::do_call::ha4d88255f4a68d08
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   23:     0x55854ef1820a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   24:     0x55854ef105ad - std::panicking::try::h6debac9988c5415d
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   25:     0x55854ef105ad - std::panic::catch_unwind::h4659dbf6316a9c8d
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   26:     0x55854ef105ad - std::rt::lang_start_internal::hdadab8536edf34fe
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   27:     0x55854ec5e269 - std::rt::lang_start::h1d5cd1832bc7e5f8
[INFO] [stderr]                                at /rustc/75eff020d0923c035c2fe220db4a0465cd847048/src/libstd/rt.rs:64
[INFO] [stderr]   28:     0x55854ec5983a - main
[INFO] [stderr]   29:     0x7f24322ab2e1 - __libc_start_main
[INFO] [stderr]   30:     0x55854ec55d1a - _start
[INFO] [stderr]   31:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "4dae5920816dba5dc4ad58cb7f1c30cef4a1da997e95320b40514c17cb4363c3"`
[INFO] running `"docker" "rm" "-f" "4dae5920816dba5dc4ad58cb7f1c30cef4a1da997e95320b40514c17cb4363c3"`
[INFO] [stdout] 4dae5920816dba5dc4ad58cb7f1c30cef4a1da997e95320b40514c17cb4363c3