[INFO] updating cached repository ubsan/newt
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ubsan/newt
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ubsan/newt" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/ubsan/newt"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/ubsan/newt'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ubsan/newt" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/ubsan/newt"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/ubsan/newt'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8a11c9db4200da624a563286ac8040a59ceffece
[INFO] sha for GitHub repo ubsan/newt: 8a11c9db4200da624a563286ac8040a59ceffece
[INFO] validating manifest of ubsan/newt on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ubsan/newt on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ubsan/newt
[INFO] finished frobbing ubsan/newt
[INFO] frobbed toml for ubsan/newt written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/ubsan/newt/Cargo.toml
[INFO] started frobbing ubsan/newt
[INFO] finished frobbing ubsan/newt
[INFO] frobbed toml for ubsan/newt written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/ubsan/newt/Cargo.toml
[INFO] crate ubsan/newt already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ubsan/newt against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-4/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/ubsan/newt:/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" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c78079505d113132e2f24645db3054798e0437a5dbb88888d635d7b6fbf73144
[INFO] running `"docker" "start" "-a" "c78079505d113132e2f24645db3054798e0437a5dbb88888d635d7b6fbf73144"`
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]    Compiling regex-syntax v0.6.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.0.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling aho-corasick v0.6.7
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling llvm-sys v70.0.0
[INFO] [stderr] error: failed to run custom build command for `llvm-sys v70.0.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/target/debug/build/llvm-sys-2fafa86c943700ff/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-70.0.0/build.rs:73:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55b14156587b - backtrace::backtrace::libunwind::trace::hc5a758871b6ebf05
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x55b14156587b - backtrace::backtrace::trace_unsynchronized::hdad9729cc53c45f3
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55b14156587b - std::sys_common::backtrace::_print::hccf66646430a9cbc
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x55b14156587b - std::sys_common::backtrace::print::h6c902507aa1c61bf
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x55b14156587b - std::panicking::default_hook::{{closure}}::hc0c79151a0a4b58f
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    5:     0x55b141565557 - std::panicking::default_hook::hfd408bb664bf319a
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]    6:     0x55b141565ff0 - std::panicking::rust_panic_with_hook::hb2d4371b6afbe17a
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]    7:     0x55b14153bdc8 - std::panicking::begin_panic::hda1f5f4157982f9f
[INFO] [stderr]                                at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libstd/panicking.rs:411
[INFO] [stderr]    8:     0x55b1413241e1 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__static_ref_initialize::hb169d459870d2efe
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.0.0/build.rs:73
[INFO] [stderr]    9:     0x55b1413241e1 - core::ops::function::FnOnce::call_once::he16bdb58f55a7e77
[INFO] [stderr]                                at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libcore/ops/function.rs:231
[INFO] [stderr]   10:     0x55b141326e43 - lazy_static::lazy::Lazy<T>::get::{{closure}}::hb25dadec72be578f
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.1.0/src/inline_lazy.rs:28
[INFO] [stderr]   11:     0x55b14132722b - std::sync::once::Once::call_once::{{closure}}::hc6882152783b572b
[INFO] [stderr]                                at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libstd/sync/once.rs:225
[INFO] [stderr]   12:     0x55b141562c34 - std::sync::once::Once::call_inner::hc152727d45f74348
[INFO] [stderr]                                at src/libstd/sync/once.rs:392
[INFO] [stderr]   13:     0x55b141327013 - std::sync::once::Once::call_once::h98df520fc835a084
[INFO] [stderr]                                at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libstd/sync/once.rs:225
[INFO] [stderr]   14:     0x55b14131f56c - lazy_static::lazy::Lazy<T>::get::h8089a1f42af93493
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.1.0/src/inline_lazy.rs:27
[INFO] [stderr]   15:     0x55b14131f56c - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__stability::h77905a66bcf6b4f9
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.0.0/<::lazy_static::__lazy_static_internal macros>:13
[INFO] [stderr]   16:     0x55b14131f56c - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::hb86b02fd69c47c0b
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.0.0/<::lazy_static::__lazy_static_internal macros>:14
[INFO] [stderr]   17:     0x55b14131cd1a - build_script_build::llvm_config::hb4f048d8f0c90fa0
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.0.0/build.rs:167
[INFO] [stderr]   18:     0x55b14131e83d - build_script_build::main::h959792e2d0587e9d
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.0.0/build.rs:300
[INFO] [stderr]   19:     0x55b141331a60 - std::rt::lang_start::{{closure}}::hf991f612a6b1dafc
[INFO] [stderr]                                at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libstd/rt.rs:64
[INFO] [stderr]   20:     0x55b1415659f3 - std::rt::lang_start_internal::{{closure}}::h86569d7197572496
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   21:     0x55b1415659f3 - std::panicking::try::do_call::hc05ef3c0bbb0a2c9
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   22:     0x55b14156e16a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stderr]   23:     0x55b1415664fd - std::panicking::try::h5f7f6728fc93999f
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   24:     0x55b1415664fd - std::panic::catch_unwind::h9120cbd852b844f2
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]   25:     0x55b1415664fd - std::rt::lang_start_internal::h20e51e71516fa081
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   26:     0x55b141331a39 - std::rt::lang_start::h830951f61b5066e8
[INFO] [stderr]                                at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/libstd/rt.rs:64
[INFO] [stderr]   27:     0x55b14131f5fa - main
[INFO] [stderr]   28:     0x7f10f8b212e1 - __libc_start_main
[INFO] [stderr]   29:     0x55b14131b95a - _start
[INFO] [stderr]   30:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "c78079505d113132e2f24645db3054798e0437a5dbb88888d635d7b6fbf73144"`
[INFO] running `"docker" "rm" "-f" "c78079505d113132e2f24645db3054798e0437a5dbb88888d635d7b6fbf73144"`
[INFO] [stdout] c78079505d113132e2f24645db3054798e0437a5dbb88888d635d7b6fbf73144