[INFO] fetching crate jcompiler 0.1.0...
[INFO] extracting crate jcompiler 0.1.0 into work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/jcompiler/0.1.0
[INFO] extracting crate jcompiler 0.1.0 into work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/jcompiler/0.1.0
[INFO] validating manifest of jcompiler-0.1.0 on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jcompiler-0.1.0 on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jcompiler-0.1.0
[INFO] finished frobbing jcompiler-0.1.0
[INFO] frobbed toml for jcompiler-0.1.0 written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/reg/jcompiler/0.1.0/Cargo.toml
[INFO] started frobbing jcompiler-0.1.0
[INFO] finished frobbing jcompiler-0.1.0
[INFO] frobbed toml for jcompiler-0.1.0 written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/jcompiler/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing jcompiler-0.1.0 against try#e212b7d492c96d3837691ba29d32d5f468933fb8 for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-1/try#e212b7d492c96d3837691ba29d32d5f468933fb8:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/reg/jcompiler/0.1.0:/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" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "build" "--frozen"`
[INFO] [stdout] fe6c6f826c64c883a9ee087e9fe24109057ace5d8babe4760eaeb0d140469941
[INFO] running `"docker" "start" "-a" "fe6c6f826c64c883a9ee087e9fe24109057ace5d8babe4760eaeb0d140469941"`
[INFO] [stderr]    Compiling llvm-sys v70.2.0
[INFO] [stderr]    Compiling quickcheck v0.3.2
[INFO] [stderr] error: failed to run custom build command for `llvm-sys v70.2.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/llvm-sys-18cbb5fecea04efe/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-70.2.0/build.rs:73:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55f1e483e62b - backtrace::backtrace::libunwind::trace::h98ebe34dc63b52e3
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55f1e483e62b - backtrace::backtrace::trace_unsynchronized::hd041341a38fdc1ca
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55f1e483e62b - std::sys_common::backtrace::_print::hc8c584aa09df5c15
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55f1e483e62b - std::sys_common::backtrace::print::h4828f56ae571c1ad
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55f1e483e62b - std::panicking::default_hook::{{closure}}::h69fce690c9f4b3d3
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    5:     0x55f1e483e32c - std::panicking::default_hook::h231e0e11400caad4
[INFO] [stderr]                                at src/libstd/panicking.rs:212
[INFO] [stderr]    6:     0x55f1e483eda0 - std::panicking::rust_panic_with_hook::h8c0d039880f491f2
[INFO] [stderr]                                at src/libstd/panicking.rs:475
[INFO] [stderr]    7:     0x55f1e47a67a8 - std::panicking::begin_panic::h376a833abc67949e
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/panicking.rs:409
[INFO] [stderr]    8:     0x55f1e45862ad - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__static_ref_initialize::hfbf2e7514fdf8899
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.2.0/build.rs:73
[INFO] [stderr]    9:     0x55f1e45862ad - core::ops::function::FnOnce::call_once::hbeb743383bcb4d51
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libcore/ops/function.rs:231
[INFO] [stderr]   10:     0x55f1e45885e2 - lazy_static::lazy::Lazy<T>::get::{{closure}}::hf61fe5fa81678a0b
[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:     0x55f1e45893db - std::sync::once::Once::call_once::{{closure}}::h3554e84570b5d207
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/sync/once.rs:220
[INFO] [stderr]   12:     0x55f1e483b956 - std::sync::once::Once::call_inner::h8b3804f1a31af0a5
[INFO] [stderr]                                at src/libstd/sync/once.rs:387
[INFO] [stderr]   13:     0x55f1e458920d - std::sync::once::Once::call_once::h43956ba1f08bf4f6
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/sync/once.rs:220
[INFO] [stderr]   14:     0x55f1e45806e2 - lazy_static::lazy::Lazy<T>::get::h85cd05213acf6cdd
[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:     0x55f1e45806e2 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__stability::h4ebe1efdbe861d7b
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.2.0/<::lazy_static::__lazy_static_internal macros>:12
[INFO] [stderr]   16:     0x55f1e45806e2 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::h4c1cbae61a8e5389
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.2.0/<::lazy_static::__lazy_static_internal macros>:13
[INFO] [stderr]   17:     0x55f1e457dc8a - build_script_build::llvm_config::hb5608cb628e3cd24
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.2.0/build.rs:167
[INFO] [stderr]   18:     0x55f1e457f3d0 - build_script_build::get_llvm_cflags::h4c6af07572fd6a40
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.2.0/build.rs:273
[INFO] [stderr]   19:     0x55f1e457f7ce - build_script_build::main::h536256ca8e3f5a9d
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.2.0/build.rs:305
[INFO] [stderr]   20:     0x55f1e4584ec0 - std::rt::lang_start::{{closure}}::h4f31a27613ab71a3
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/rt.rs:64
[INFO] [stderr]   21:     0x55f1e483e7a3 - std::rt::lang_start_internal::{{closure}}::ha7c0c29bf9d4b1ec
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   22:     0x55f1e483e7a3 - std::panicking::try::do_call::h6e54176261da06d4
[INFO] [stderr]                                at src/libstd/panicking.rs:294
[INFO] [stderr]   23:     0x55f1e48473ca - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   24:     0x55f1e483f2ad - std::panicking::try::h108b9053abb3bfc3
[INFO] [stderr]                                at src/libstd/panicking.rs:273
[INFO] [stderr]   25:     0x55f1e483f2ad - std::panic::catch_unwind::h26d0733c47c2fe78
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]   26:     0x55f1e483f2ad - std::rt::lang_start_internal::hfa103a00f84c98f5
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   27:     0x55f1e4584e99 - std::rt::lang_start::h9e8c99ad96c18c88
[INFO] [stderr]                                at /rustc/e212b7d492c96d3837691ba29d32d5f468933fb8/src/libstd/rt.rs:64
[INFO] [stderr]   28:     0x55f1e458077a - main
[INFO] [stderr]   29:     0x7fc82e9452e1 - __libc_start_main
[INFO] [stderr]   30:     0x55f1e457c8aa - _start
[INFO] [stderr]   31:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "fe6c6f826c64c883a9ee087e9fe24109057ace5d8babe4760eaeb0d140469941"`
[INFO] running `"docker" "rm" "-f" "fe6c6f826c64c883a9ee087e9fe24109057ace5d8babe4760eaeb0d140469941"`
[INFO] [stdout] fe6c6f826c64c883a9ee087e9fe24109057ace5d8babe4760eaeb0d140469941