[INFO] updating cached repository https://github.com/ubsan/newt
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8a11c9db4200da624a563286ac8040a59ceffece
[INFO] checking ubsan/newt against master#e2223c94bf433fc38234d1303e88cbaf14755863 for pr-69548
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fubsan%2Fnewt" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ubsan/newt on toolchain e2223c94bf433fc38234d1303e88cbaf14755863
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e2223c94bf433fc38234d1303e88cbaf14755863" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ubsan/newt
[INFO] finished tweaking git repo https://github.com/ubsan/newt
[INFO] tweaked toml for git repo https://github.com/ubsan/newt written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/ubsan/newt already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e2223c94bf433fc38234d1303e88cbaf14755863" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+e2223c94bf433fc38234d1303e88cbaf14755863" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d91d7c4c669d4a3aa3637e918c1514ed1000ed2dba9539415295f1029ffe5f4c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "d91d7c4c669d4a3aa3637e918c1514ed1000ed2dba9539415295f1029ffe5f4c"`
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling regex v1.0.5
[INFO] [stderr]    Compiling ucd-util v0.1.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.1
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.2
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling memchr v2.0.2
[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/rustwide/target/debug/build/llvm-sys-3cace631f821e5e0/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-70.0.0/build.rs:73:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x559db18da9c4 - backtrace::backtrace::libunwind::trace::h4ca49152e1f35005
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x559db18da9c4 - backtrace::backtrace::trace_unsynchronized::hc386219a292e35b7
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x559db18da9c4 - std::sys_common::backtrace::_print_fmt::hcc8e03acf0b4e191
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x559db18da9c4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h6629260593428da6
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x559db18fb71c - core::fmt::write::h33778cb9fc069ee9
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1053
[INFO] [stderr]    5:     0x559db18d6b67 - std::io::Write::write_fmt::ha24c398f7cbcf857
[INFO] [stderr]                                at src/libstd/io/mod.rs:1428
[INFO] [stderr]    6:     0x559db18dd245 - std::sys_common::backtrace::_print::hc879c3241333a43c
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x559db18dd245 - std::sys_common::backtrace::print::h20817dd43023ddb9
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x559db18dd245 - std::panicking::default_hook::{{closure}}::h99b6ca83277c224a
[INFO] [stderr]                                at src/libstd/panicking.rs:204
[INFO] [stderr]    9:     0x559db18dcf87 - std::panicking::default_hook::hdf495aaeed5140cc
[INFO] [stderr]                                at src/libstd/panicking.rs:224
[INFO] [stderr]   10:     0x559db18dd8a2 - std::panicking::rust_panic_with_hook::h455d273bc59e23f1
[INFO] [stderr]                                at src/libstd/panicking.rs:470
[INFO] [stderr]   11:     0x559db18b6fd1 - std::panicking::begin_panic::he75cb60e64b6c962
[INFO] [stderr]                                at /rustc/e2223c94bf433fc38234d1303e88cbaf14755863/src/libstd/panicking.rs:397
[INFO] [stderr]   12:     0x559db16e42ef - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__static_ref_initialize::h5207f678f1314b3e
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.0.0/build.rs:73
[INFO] [stderr]   13:     0x559db16e42ef - core::ops::function::FnOnce::call_once::hb1f038e0766a871b
[INFO] [stderr]                                at /rustc/e2223c94bf433fc38234d1303e88cbaf14755863/src/libcore/ops/function.rs:232
[INFO] [stderr]   14:     0x559db16e30fb - lazy_static::lazy::Lazy<T>::get::{{closure}}::h500fd67738c7a57a
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.1.0/src/inline_lazy.rs:28
[INFO] [stderr]   15:     0x559db16e56e2 - std::sync::once::Once::call_once::{{closure}}::ha3502c30bddead79
[INFO] [stderr]                                at /rustc/e2223c94bf433fc38234d1303e88cbaf14755863/src/libstd/sync/once.rs:264
[INFO] [stderr]   16:     0x559db18da498 - std::sync::once::Once::call_inner::hc32311a26fc9e7a7
[INFO] [stderr]                                at src/libstd/sync/once.rs:416
[INFO] [stderr]   17:     0x559db16e5473 - std::sync::once::Once::call_once::h166f857c772a91c6
[INFO] [stderr]                                at /rustc/e2223c94bf433fc38234d1303e88cbaf14755863/src/libstd/sync/once.rs:264
[INFO] [stderr]   18:     0x559db16e1454 - lazy_static::lazy::Lazy<T>::get::h6fff084b282fd21f
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.1.0/src/inline_lazy.rs:27
[INFO] [stderr]   19:     0x559db16e1454 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__stability::h3eda8710201ae8dc
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.0.0/<::lazy_static::__lazy_static_internal macros>:19
[INFO] [stderr]   20:     0x559db16e1454 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::h0257105e3eb47d19
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.0.0/<::lazy_static::__lazy_static_internal macros>:21
[INFO] [stderr]   21:     0x559db16df004 - build_script_build::llvm_config::haba4a9983141369b
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.0.0/build.rs:167
[INFO] [stderr]   22:     0x559db16e0723 - build_script_build::main::he00a3388b9bed690
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.0.0/build.rs:300
[INFO] [stderr]   23:     0x559db16e337b - std::rt::lang_start::{{closure}}::hb2148530da9d7752
[INFO] [stderr]                                at /rustc/e2223c94bf433fc38234d1303e88cbaf14755863/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x559db18dd363 - std::rt::lang_start_internal::{{closure}}::hb57f5e2d13eee8db
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   25:     0x559db18dd363 - std::panicking::try::do_call::h204ea578757a6ffa
[INFO] [stderr]                                at src/libstd/panicking.rs:303
[INFO] [stderr]   26:     0x559db18e5e37 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   27:     0x559db18ddd49 - std::panicking::try::hbdab64151e1c9d96
[INFO] [stderr]                                at src/libstd/panicking.rs:281
[INFO] [stderr]   28:     0x559db18ddd49 - std::panic::catch_unwind::h354b07ea6be5bfc8
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   29:     0x559db18ddd49 - std::rt::lang_start_internal::h50f05845fa10b1fa
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   30:     0x559db16e3357 - std::rt::lang_start::hceec4e3d5d8bdaba
[INFO] [stderr]                                at /rustc/e2223c94bf433fc38234d1303e88cbaf14755863/src/libstd/rt.rs:67
[INFO] [stderr]   31:     0x559db16e14ca - main
[INFO] [stderr]   32:     0x7f025ce61b97 - __libc_start_main
[INFO] [stderr]   33:     0x559db16ddbba - _start
[INFO] [stderr]   34:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "d91d7c4c669d4a3aa3637e918c1514ed1000ed2dba9539415295f1029ffe5f4c"`
[INFO] running `"docker" "rm" "-f" "d91d7c4c669d4a3aa3637e918c1514ed1000ed2dba9539415295f1029ffe5f4c"`
[INFO] [stdout] d91d7c4c669d4a3aa3637e918c1514ed1000ed2dba9539415295f1029ffe5f4c