[INFO] updating cached repository https://github.com/mattjquinn/jcompiler
[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] e736f8260d16c9f7e7fd68fca9f79b93d3c84dee
[INFO] checking mattjquinn/jcompiler against try#89c05fd3cc6404a13e1bd71450c6132a2755fa4b for pr-69741
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmattjquinn%2Fjcompiler" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mattjquinn/jcompiler on toolchain 89c05fd3cc6404a13e1bd71450c6132a2755fa4b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mattjquinn/jcompiler
[INFO] finished tweaking git repo https://github.com/mattjquinn/jcompiler
[INFO] tweaked toml for git repo https://github.com/mattjquinn/jcompiler written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mattjquinn/jcompiler already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d852a077853d9fa4b9d6b6ac569a346045406dbf24b526e1b1c10d1c6b91a720
[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" "d852a077853d9fa4b9d6b6ac569a346045406dbf24b526e1b1c10d1c6b91a720"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]     Checking either v1.5.1
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling maplit v1.0.1
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking ascii v0.9.1
[INFO] [stderr]     Checking ieee754 v0.2.6
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking log v0.4.8
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking getrandom v0.1.12
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking pest v2.1.2
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking walkdir v2.2.7
[INFO] [stderr]    Compiling regex-syntax v0.6.5
[INFO] [stderr]     Checking tinytemplate v1.0.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking rand v0.7.1
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking csv v1.0.5
[INFO] [stderr]     Checking criterion-plot v0.3.0
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]    Compiling pest_meta v2.1.0
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]     Checking quickcheck v0.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling llvm-sys v70.1.0
[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-401cfe75a9838941/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:     0x55b23c200044 - backtrace::backtrace::libunwind::trace::h91d1589f784e7177
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x55b23c200044 - backtrace::backtrace::trace_unsynchronized::h9ec8949702a1f108
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55b23c200044 - std::sys_common::backtrace::_print_fmt::h97468752f36a9a0e
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x55b23c200044 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::ha27a4263940af5a9
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x55b23c2210cc - core::fmt::write::h061ec21cc1fda96c
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1063
[INFO] [stderr]    5:     0x55b23c1fc357 - std::io::Write::write_fmt::ha58db9b6b5ace99d
[INFO] [stderr]                                at src/libstd/io/mod.rs:1428
[INFO] [stderr]    6:     0x55b23c2028a5 - std::sys_common::backtrace::_print::h92d96c5907bac82b
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x55b23c2028a5 - std::sys_common::backtrace::print::hb08c4606d19eee23
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55b23c2028a5 - std::panicking::default_hook::{{closure}}::h28e247f6a0250f5d
[INFO] [stderr]                                at src/libstd/panicking.rs:204
[INFO] [stderr]    9:     0x55b23c2025f2 - std::panicking::default_hook::h3647fb19c6fd2d5c
[INFO] [stderr]                                at src/libstd/panicking.rs:224
[INFO] [stderr]   10:     0x55b23c202f02 - std::panicking::rust_panic_with_hook::h38d69a94e615bc72
[INFO] [stderr]                                at src/libstd/panicking.rs:470
[INFO] [stderr]   11:     0x55b23c18adf1 - std::panicking::begin_panic::h097a5e0e9b248c07
[INFO] [stderr]                                at /rustc/89c05fd3cc6404a13e1bd71450c6132a2755fa4b/src/libstd/panicking.rs:397
[INFO] [stderr]   12:     0x55b23bfe3ee5 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__static_ref_initialize::h741e8078c733a61f
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:73
[INFO] [stderr]   13:     0x55b23bfe3ee5 - core::ops::function::FnOnce::call_once::h59d5d54ccfc963b2
[INFO] [stderr]                                at /rustc/89c05fd3cc6404a13e1bd71450c6132a2755fa4b/src/libcore/ops/function.rs:232
[INFO] [stderr]   14:     0x55b23bfee92b - lazy_static::lazy::Lazy<T>::get::{{closure}}::h3150f81bf0a2ba85
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.2.0/src/inline_lazy.rs:28
[INFO] [stderr]   15:     0x55b23bfe5972 - std::sync::once::Once::call_once::{{closure}}::h2353a940b7a03255
[INFO] [stderr]                                at /rustc/89c05fd3cc6404a13e1bd71450c6132a2755fa4b/src/libstd/sync/once.rs:264
[INFO] [stderr]   16:     0x55b23c1ffb08 - std::sync::once::Once::call_inner::hfe13d62afcd90901
[INFO] [stderr]                                at src/libstd/sync/once.rs:416
[INFO] [stderr]   17:     0x55b23bfe5823 - std::sync::once::Once::call_once::h59cfb404c8db781f
[INFO] [stderr]                                at /rustc/89c05fd3cc6404a13e1bd71450c6132a2755fa4b/src/libstd/sync/once.rs:264
[INFO] [stderr]   18:     0x55b23bfe0a95 - lazy_static::lazy::Lazy<T>::get::h2377bda5a80a3d0c
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.2.0/src/inline_lazy.rs:27
[INFO] [stderr]   19:     0x55b23bfe0a95 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__stability::h55a4e3c6a4e95ca2
[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:     0x55b23bfe0a95 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::hbf64c6b514e42d83
[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:     0x55b23bfde744 - build_script_build::llvm_config::he856c057e522863b
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:167
[INFO] [stderr]   22:     0x55b23bfdfa70 - build_script_build::get_llvm_cflags::heec05150a81ea8cb
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:273
[INFO] [stderr]   23:     0x55b23bfdfe54 - build_script_build::main::hf9c8f976a61e23e7
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.1.0/build.rs:300
[INFO] [stderr]   24:     0x55b23bfe302b - std::rt::lang_start::{{closure}}::hd1fa659f8bb74f67
[INFO] [stderr]                                at /rustc/89c05fd3cc6404a13e1bd71450c6132a2755fa4b/src/libstd/rt.rs:67
[INFO] [stderr]   25:     0x55b23c2029c3 - std::rt::lang_start_internal::{{closure}}::hf3e6a4ec162517f7
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   26:     0x55b23c2029c3 - std::panicking::try::do_call::h77ed59d4706bc4a8
[INFO] [stderr]                                at src/libstd/panicking.rs:303
[INFO] [stderr]   27:     0x55b23c20b7d7 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   28:     0x55b23c20342b - std::panicking::try::h3e27a5213663f467
[INFO] [stderr]                                at src/libstd/panicking.rs:281
[INFO] [stderr]   29:     0x55b23c20342b - std::panic::catch_unwind::ha46de5fecc0d9a90
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   30:     0x55b23c20342b - std::rt::lang_start_internal::hb81abf531274a39e
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   31:     0x55b23bfe3007 - std::rt::lang_start::h312af773a01ca811
[INFO] [stderr]                                at /rustc/89c05fd3cc6404a13e1bd71450c6132a2755fa4b/src/libstd/rt.rs:67
[INFO] [stderr]   32:     0x55b23bfe0b2a - main
[INFO] [stderr]   33:     0x7f2abd257b97 - __libc_start_main
[INFO] [stderr]   34:     0x55b23bfdd37a - _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" "d852a077853d9fa4b9d6b6ac569a346045406dbf24b526e1b1c10d1c6b91a720"`
[INFO] running `"docker" "rm" "-f" "d852a077853d9fa4b9d6b6ac569a346045406dbf24b526e1b1c10d1c6b91a720"`
[INFO] [stdout] d852a077853d9fa4b9d6b6ac569a346045406dbf24b526e1b1c10d1c6b91a720