[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-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/fexolm/jfec"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/fexolm/jfec'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fexolm/jfec" "work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/fexolm/jfec"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/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#589beb979c0f1a9736e02e578913db88398c3ba5
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fexolm/jfec on toolchain try#42445ded8fd34235a676755cb5d079658ed51f6a
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-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-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/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-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/fexolm/jfec/Cargo.toml
[INFO] crate fexolm/jfec already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking fexolm/jfec against try#42445ded8fd34235a676755cb5d079658ed51f6a for pr-60944
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60944/worker-7/try#42445ded8fd34235a676755cb5d079658ed51f6a:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/fexolm/jfec:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c1c61cf8a78db2a2d7ebdbc2cad46de715a95319438627e526cda27c324869bf
[INFO] running `"docker" "start" "-a" "c1c61cf8a78db2a2d7ebdbc2cad46de715a95319438627e526cda27c324869bf"`
[INFO] [stderr]     Checking cast v0.1.0
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking simplelog v0.4.4
[INFO] [stderr]    Compiling llvm-sys v70.1.0
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]     Checking criterion-stats v0.1.3
[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-d56859743f564d30/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:     0x55a616586243 - std::sys::unix::backtrace::tracing::imp::unwind_backtrace::h4b8c8edcb4a1a884
[INFO] [stderr]                                at src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:39
[INFO] [stderr]    1:     0x55a616581dfb - std::sys_common::backtrace::_print::hb9cb43b8f3a26e66
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:71
[INFO] [stderr]    2:     0x55a616585006 - std::panicking::default_hook::{{closure}}::hda0ee4005e6ff283
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]                                at src/libstd/panicking.rs:197
[INFO] [stderr]    3:     0x55a616584d99 - std::panicking::default_hook::hcd452a911bf63096
[INFO] [stderr]                                at src/libstd/panicking.rs:211
[INFO] [stderr]    4:     0x55a61658570f - std::panicking::rust_panic_with_hook::hf6a2e8487a670340
[INFO] [stderr]                                at src/libstd/panicking.rs:474
[INFO] [stderr]    5:     0x55a61646abc7 - std::panicking::begin_panic::h64b718ccd3c7f2aa
[INFO] [stderr]                                at /rustc/42445ded8fd34235a676755cb5d079658ed51f6a/src/libstd/panicking.rs:408
[INFO] [stderr]    6:     0x55a6162d0d72 - core::ops::function::FnOnce::call_once::h57d82e7f63ba4762
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:73
[INFO] [stderr]                                at /rustc/42445ded8fd34235a676755cb5d079658ed51f6a/src/libcore/ops/function.rs:231
[INFO] [stderr]    7:     0x55a6162cfb31 - lazy_static::lazy::Lazy<T>::get::{{closure}}::h1520e12fc275cf52
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.3.0/src/inline_lazy.rs:28
[INFO] [stderr]    8:     0x55a6162d405a - std::sync::once::Once::call_once::{{closure}}::ha547cbef846246f3
[INFO] [stderr]                                at /rustc/42445ded8fd34235a676755cb5d079658ed51f6a/src/libstd/sync/once.rs:220
[INFO] [stderr]    9:     0x55a616581275 - std::sync::once::Once::call_inner::h86add5194e981691
[INFO] [stderr]                                at src/libstd/sync/once.rs:387
[INFO] [stderr]   10:     0x55a6162d3ebc - std::sync::once::Once::call_once::h179588614698f1c4
[INFO] [stderr]                                at /rustc/42445ded8fd34235a676755cb5d079658ed51f6a/src/libstd/sync/once.rs:220
[INFO] [stderr]   11:     0x55a6162cbdc1 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::h014f5f08e48fab52
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.3.0/src/inline_lazy.rs:27
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/<::lazy_static::__lazy_static_internal macros>:12
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/<::lazy_static::__lazy_static_internal macros>:13
[INFO] [stderr]   12:     0x55a6162c9589 - build_script_build::llvm_config::hfc637758acfffbf0
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:167
[INFO] [stderr]   13:     0x55a6162cacaf - build_script_build::get_llvm_cflags::he08b560324307508
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:273
[INFO] [stderr]   14:     0x55a6162cb08d - build_script_build::main::hb06e1bce1f00ed27
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:300
[INFO] [stderr]   15:     0x55a6162cfc3f - std::rt::lang_start::{{closure}}::h82bd204cb97e8458
[INFO] [stderr]                                at /rustc/42445ded8fd34235a676755cb5d079658ed51f6a/src/libstd/rt.rs:64
[INFO] [stderr]   16:     0x55a616585112 - std::panicking::try::do_call::hcd6e20d3f55d90f4
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]                                at src/libstd/panicking.rs:293
[INFO] [stderr]   17:     0x55a61658de19 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   18:     0x55a616585c1c - std::rt::lang_start_internal::h785c82e60cb8195f
[INFO] [stderr]                                at src/libstd/panicking.rs:272
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   19:     0x55a6162cfc18 - std::rt::lang_start::h3d457fb19de6f827
[INFO] [stderr]                                at /rustc/42445ded8fd34235a676755cb5d079658ed51f6a/src/libstd/rt.rs:64
[INFO] [stderr]   20:     0x55a6162cbe59 - main
[INFO] [stderr]   21:     0x7f5c7ec692e0 - __libc_start_main
[INFO] [stderr]   22:     0x55a6162c80d9 - _start
[INFO] [stderr]   23:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c1c61cf8a78db2a2d7ebdbc2cad46de715a95319438627e526cda27c324869bf"`
[INFO] running `"docker" "rm" "-f" "c1c61cf8a78db2a2d7ebdbc2cad46de715a95319438627e526cda27c324869bf"`
[INFO] [stdout] c1c61cf8a78db2a2d7ebdbc2cad46de715a95319438627e526cda27c324869bf