[INFO] cloning repository https://github.com/fexolm/jfec
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fexolm/jfec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffexolm%2Fjfec"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffexolm%2Fjfec'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6de42e1766324b065d6ef53eb278677017d115bc
[INFO] checking fexolm/jfec against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffexolm%2Fjfec" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fexolm/jfec on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/fexolm/jfec
[INFO] finished tweaking git repo https://github.com/fexolm/jfec
[INFO] tweaked toml for git repo https://github.com/fexolm/jfec written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/fexolm/jfec already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5fdeec01785e7986e82fbf6979d924c41621ae153355b4546605433e2704b274
[INFO] running `"docker" "start" "-a" "5fdeec01785e7986e82fbf6979d924c41621ae153355b4546605433e2704b274"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling cc v1.0.31
[INFO] [stderr]    Compiling lazy_static v1.3.0
[INFO] [stderr]    Compiling regex v1.1.5
[INFO] [stderr]     Checking either v1.5.1
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]     Checking cast v0.1.0
[INFO] [stderr]     Checking term v0.4.6
[INFO] [stderr]    Compiling regex-syntax v0.6.6
[INFO] [stderr]    Compiling pest v2.1.0
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking simplelog v0.4.4
[INFO] [stderr]    Compiling aho-corasick v0.7.3
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking criterion-stats v0.1.3
[INFO] [stderr]     Checking criterion-plot v0.1.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[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 failure_derive v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling llvm-sys v70.1.0
[INFO] [stderr]     Checking failure v0.1.5
[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/rustwide/target/debug/build/llvm-sys-10df3634956e233d/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] Found LLVM version 6.0.0 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/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:73:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5581ed1ff2ca - backtrace::backtrace::libunwind::trace::h62ee5d8325268128
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x5581ed1ff2ca - backtrace::backtrace::trace_unsynchronized::h0c2dcc20fbafc255
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5581ed1ff2ca - std::sys_common::backtrace::_print_fmt::h5452375970baa944
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:77
[INFO] [stderr]    3:     0x5581ed1ff2ca - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hdcdebd1ff29cf05e
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:61
[INFO] [stderr]    4:     0x5581ed21fafc - core::fmt::write::h1a9d5001c75dea4b
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1028
[INFO] [stderr]    5:     0x5581ed1fb447 - std::io::Write::write_fmt::hc50d5b4b29eeddb4
[INFO] [stderr]                                at src/libstd/io/mod.rs:1412
[INFO] [stderr]    6:     0x5581ed2018fe - std::sys_common::backtrace::_print::hd026679112716709
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:65
[INFO] [stderr]    7:     0x5581ed2018fe - std::sys_common::backtrace::print::hc2cd7cb69b3121ae
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:50
[INFO] [stderr]    8:     0x5581ed2018fe - std::panicking::default_hook::{{closure}}::hac834639b20b63f7
[INFO] [stderr]                                at src/libstd/panicking.rs:187
[INFO] [stderr]    9:     0x5581ed201601 - std::panicking::default_hook::h2fc956babc86e97d
[INFO] [stderr]                                at src/libstd/panicking.rs:204
[INFO] [stderr]   10:     0x5581ed201ff5 - std::panicking::rust_panic_with_hook::hb65306f2c92eac01
[INFO] [stderr]                                at src/libstd/panicking.rs:467
[INFO] [stderr]   11:     0x5581ed1b1843 - std::panicking::begin_panic::h2ea46eda32f1bbaa
[INFO] [stderr]                                at /rustc/ea663bba38739867a4b75ac820991b4f5d093c3b/src/libstd/panicking.rs:401
[INFO] [stderr]   12:     0x5581ecf4f8ee - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__static_ref_initialize::h2874c66f01611920
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:73
[INFO] [stderr]   13:     0x5581ecf4f8ee - core::ops::function::FnOnce::call_once::hfb2d7c5b4d064bbc
[INFO] [stderr]                                at /rustc/ea663bba38739867a4b75ac820991b4f5d093c3b/src/libcore/ops/function.rs:227
[INFO] [stderr]   14:     0x5581ecf4d90f - lazy_static::lazy::Lazy<T>::get::{{closure}}::h9326cdc1b35a1ad9
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.3.0/src/inline_lazy.rs:28
[INFO] [stderr]   15:     0x5581ecf53fab - std::sync::once::Once::call_once::{{closure}}::hec0c5b7822bf3605
[INFO] [stderr]                                at /rustc/ea663bba38739867a4b75ac820991b4f5d093c3b/src/libstd/sync/once.rs:225
[INFO] [stderr]   16:     0x5581ed1fedc8 - std::sync::once::Once::call_inner::h1d66f20b06d1d174
[INFO] [stderr]                                at src/libstd/sync/once.rs:392
[INFO] [stderr]   17:     0x5581ecf53d53 - std::sync::once::Once::call_once::hd625942eb553fad6
[INFO] [stderr]                                at /rustc/ea663bba38739867a4b75ac820991b4f5d093c3b/src/libstd/sync/once.rs:225
[INFO] [stderr]   18:     0x5581ecf4bec5 - lazy_static::lazy::Lazy<T>::get::h8e10f71351bde804
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.3.0/src/inline_lazy.rs:27
[INFO] [stderr]   19:     0x5581ecf4bec5 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__stability::h1de005cf4390a347
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/<::lazy_static::__lazy_static_internal macros>:16
[INFO] [stderr]   20:     0x5581ecf4bec5 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::hd9124091d67ff660
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/<::lazy_static::__lazy_static_internal macros>:18
[INFO] [stderr]   21:     0x5581ecf4940a - build_script_build::llvm_config::h0ceb5dc20f80599b
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:167
[INFO] [stderr]   22:     0x5581ecf4add5 - build_script_build::get_llvm_cflags::h3ff229a36d1f3095
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:273
[INFO] [stderr]   23:     0x5581ecf4b1fe - build_script_build::main::he299ddb9219d97e9
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:300
[INFO] [stderr]   24:     0x5581ecf4e2c0 - std::rt::lang_start::{{closure}}::haf8c86e301e4979a
[INFO] [stderr]                                at /rustc/ea663bba38739867a4b75ac820991b4f5d093c3b/src/libstd/rt.rs:61
[INFO] [stderr]   25:     0x5581ed201a23 - std::rt::lang_start_internal::{{closure}}::hbff5fe9c19d221a8
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   26:     0x5581ed201a23 - std::panicking::try::do_call::h330d2d9ad3936443
[INFO] [stderr]                                at src/libstd/panicking.rs:286
[INFO] [stderr]   27:     0x5581ed209faa - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   28:     0x5581ed2024ed - std::panicking::try::h0001f4cc821eb44d
[INFO] [stderr]                                at src/libstd/panicking.rs:265
[INFO] [stderr]   29:     0x5581ed2024ed - std::panic::catch_unwind::hc7071df6aa2e6fb8
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   30:     0x5581ed2024ed - std::rt::lang_start_internal::hd852b1b003ba5a93
[INFO] [stderr]                                at src/libstd/rt.rs:47
[INFO] [stderr]   31:     0x5581ecf4e299 - std::rt::lang_start::h6f8c34b0cc86e3a4
[INFO] [stderr]                                at /rustc/ea663bba38739867a4b75ac820991b4f5d093c3b/src/libstd/rt.rs:61
[INFO] [stderr]   32:     0x5581ecf4bf4a - main
[INFO] [stderr]   33:     0x7f992933cb97 - __libc_start_main
[INFO] [stderr]   34:     0x5581ecf4800a - _start
[INFO] [stderr]   35:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "5fdeec01785e7986e82fbf6979d924c41621ae153355b4546605433e2704b274"`
[INFO] running `"docker" "rm" "-f" "5fdeec01785e7986e82fbf6979d924c41621ae153355b4546605433e2704b274"`
[INFO] [stdout] 5fdeec01785e7986e82fbf6979d924c41621ae153355b4546605433e2704b274