[INFO] cloning repository ubsan/newt
[INFO] running `"git" "clone" "--bare" "git://github.com/ubsan/newt.git" "work/cache/sources/gh/ubsan/newt"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/ubsan/newt'...
[INFO] running `"git" "clone" "work/cache/sources/gh/ubsan/newt" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/ubsan/newt"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/ubsan/newt'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ubsan/newt" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/ubsan/newt"`
[INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/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#c8865d8e195813ade6b84434ac9f8850e7112d1a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ubsan/newt 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 ubsan/newt
[INFO] finished frobbing ubsan/newt
[INFO] frobbed toml for ubsan/newt written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/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" "+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 ubsan/newt against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-0/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"`
[INFO] [stdout] c4ef8f6949de841acdbe64e19af7eb954592e4b6103eeba85a5b89d51ebcd1d2
[INFO] running `"docker" "start" "-a" "c4ef8f6949de841acdbe64e19af7eb954592e4b6103eeba85a5b89d51ebcd1d2"`
[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]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling unicode-normalization v0.1.7
[INFO] [stderr]    Compiling regex-syntax v0.6.2
[INFO] [stderr]    Compiling memchr v2.0.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[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-96faa56bc7af5492/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:     0x56007da2de1b - backtrace::backtrace::libunwind::trace::hcbf63b8d794b15f4
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x56007da2de1b - backtrace::backtrace::trace_unsynchronized::h681e1cb201a9972d
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x56007da2de1b - std::sys_common::backtrace::_print::hd27175ce39811176
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stderr]    3:     0x56007da2de1b - std::sys_common::backtrace::print::h117e2eebf9a1e122
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stderr]    4:     0x56007da2de1b - std::panicking::default_hook::{{closure}}::h6369b988ee675335
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    5:     0x56007da2db1c - std::panicking::default_hook::hfaefd2bea4c25f9e
[INFO] [stderr]                                at src/libstd/panicking.rs:212
[INFO] [stderr]    6:     0x56007da2e590 - std::panicking::rust_panic_with_hook::h02c52718165ccced
[INFO] [stderr]                                at src/libstd/panicking.rs:475
[INFO] [stderr]    7:     0x56007da0aa38 - std::panicking::begin_panic::h608f81691c9cb93b
[INFO] [stderr]                                at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/panicking.rs:409
[INFO] [stderr]    8:     0x56007d7ed2fd - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__static_ref_initialize::h8f9fe16b37319f92
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.0.0/build.rs:73
[INFO] [stderr]    9:     0x56007d7ed2fd - core::ops::function::FnOnce::call_once::h8ac9dcc649fe5522
[INFO] [stderr]                                at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libcore/ops/function.rs:231
[INFO] [stderr]   10:     0x56007d7f0043 - lazy_static::lazy::Lazy<T>::get::{{closure}}::h5e0e3dc5f5346a9f
[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:     0x56007d7f050b - std::sync::once::Once::call_once::{{closure}}::h76299cb2e0cf2ad9
[INFO] [stderr]                                at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/sync/once.rs:220
[INFO] [stderr]   12:     0x56007da2b196 - std::sync::once::Once::call_inner::hcbe54f2f628098dd
[INFO] [stderr]                                at src/libstd/sync/once.rs:387
[INFO] [stderr]   13:     0x56007d7f045d - std::sync::once::Once::call_once::h6d8e4015759e1216
[INFO] [stderr]                                at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/sync/once.rs:220
[INFO] [stderr]   14:     0x56007d7e8b6c - lazy_static::lazy::Lazy<T>::get::he3a1998ceddb2db7
[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:     0x56007d7e8b6c - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__stability::h37ce2bf5c266da9b
[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:     0x56007d7e8b6c - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::he96b1387c44a003e
[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:     0x56007d7e631a - build_script_build::llvm_config::h794870c55c7735ba
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.0.0/build.rs:167
[INFO] [stderr]   18:     0x56007d7e7e47 - build_script_build::main::hd03940b1a01fb467
[INFO] [stderr]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.0.0/build.rs:300
[INFO] [stderr]   19:     0x56007d7eb6f0 - std::rt::lang_start::{{closure}}::h25c0441650199999
[INFO] [stderr]                                at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/rt.rs:64
[INFO] [stderr]   20:     0x56007da2df93 - std::rt::lang_start_internal::{{closure}}::hcbc5c8394111530e
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   21:     0x56007da2df93 - std::panicking::try::do_call::h84c4ef65129422bb
[INFO] [stderr]                                at src/libstd/panicking.rs:294
[INFO] [stderr]   22:     0x56007da36baa - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:85
[INFO] [stderr]   23:     0x56007da2ea9d - std::panicking::try::h2c4ddfbb8ee8ea48
[INFO] [stderr]                                at src/libstd/panicking.rs:273
[INFO] [stderr]   24:     0x56007da2ea9d - std::panic::catch_unwind::hdaf4c8aaf8d806d4
[INFO] [stderr]                                at src/libstd/panic.rs:388
[INFO] [stderr]   25:     0x56007da2ea9d - std::rt::lang_start_internal::h62b0fb13d258520d
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   26:     0x56007d7eb6c9 - std::rt::lang_start::hb1000a2e25b0fa4c
[INFO] [stderr]                                at /rustc/c8865d8e195813ade6b84434ac9f8850e7112d1a/src/libstd/rt.rs:64
[INFO] [stderr]   27:     0x56007d7e8bfa - main
[INFO] [stderr]   28:     0x7f5dfd7c72e1 - __libc_start_main
[INFO] [stderr]   29:     0x56007d7e4f3a - _start
[INFO] [stderr]   30:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "c4ef8f6949de841acdbe64e19af7eb954592e4b6103eeba85a5b89d51ebcd1d2"`
[INFO] running `"docker" "rm" "-f" "c4ef8f6949de841acdbe64e19af7eb954592e4b6103eeba85a5b89d51ebcd1d2"`
[INFO] [stdout] c4ef8f6949de841acdbe64e19af7eb954592e4b6103eeba85a5b89d51ebcd1d2