[INFO] crate jcompiler 0.1.0 is already in cache
[INFO] checking jcompiler-0.1.0 against try#89c05fd3cc6404a13e1bd71450c6132a2755fa4b for pr-69741
[INFO] extracting crate jcompiler 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate jcompiler 0.1.0 on toolchain 89c05fd3cc6404a13e1bd71450c6132a2755fa4b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate jcompiler 0.1.0
[INFO] finished tweaking crates.io crate jcompiler 0.1.0
[INFO] tweaked toml for crates.io crate jcompiler 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c9fde9a1f2b928f5767be185b330216671d9047d848c69b7b8a52f55b1bfad13
[INFO] running `"docker" "start" "-a" "c9fde9a1f2b928f5767be185b330216671d9047d848c69b7b8a52f55b1bfad13"`
[INFO] [stderr]    Compiling llvm-sys v70.2.1
[INFO] [stderr]     Checking quickcheck v0.3.2
[INFO] [stderr] error: failed to run custom build command for `llvm-sys v70.2.1`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/llvm-sys-e200de9fd2a84fae/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] Found LLVM version 6.0.0 on PATH, but need 7.0.1.
[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-70.2.1/build.rs:73:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55b2d91c2f24 - 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:     0x55b2d91c2f24 - 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:     0x55b2d91c2f24 - std::sys_common::backtrace::_print_fmt::h97468752f36a9a0e
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x55b2d91c2f24 - <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:     0x55b2d91e400c - core::fmt::write::h061ec21cc1fda96c
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1063
[INFO] [stderr]    5:     0x55b2d91bf147 - std::io::Write::write_fmt::ha58db9b6b5ace99d
[INFO] [stderr]                                at src/libstd/io/mod.rs:1428
[INFO] [stderr]    6:     0x55b2d91c57d5 - std::sys_common::backtrace::_print::h92d96c5907bac82b
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x55b2d91c57d5 - std::sys_common::backtrace::print::hb08c4606d19eee23
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55b2d91c57d5 - std::panicking::default_hook::{{closure}}::h28e247f6a0250f5d
[INFO] [stderr]                                at src/libstd/panicking.rs:204
[INFO] [stderr]    9:     0x55b2d91c5522 - std::panicking::default_hook::h3647fb19c6fd2d5c
[INFO] [stderr]                                at src/libstd/panicking.rs:224
[INFO] [stderr]   10:     0x55b2d91c5e32 - std::panicking::rust_panic_with_hook::h38d69a94e615bc72
[INFO] [stderr]                                at src/libstd/panicking.rs:470
[INFO] [stderr]   11:     0x55b2d9192291 - std::panicking::begin_panic::h0705d6c94ec688a5
[INFO] [stderr]                                at /rustc/89c05fd3cc6404a13e1bd71450c6132a2755fa4b/src/libstd/panicking.rs:397
[INFO] [stderr]   12:     0x55b2d8f43395 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__static_ref_initialize::h8263d8de70c77250
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.2.1/build.rs:73
[INFO] [stderr]   13:     0x55b2d8f43395 - core::ops::function::FnOnce::call_once::hde70bb7213bf1d93
[INFO] [stderr]                                at /rustc/89c05fd3cc6404a13e1bd71450c6132a2755fa4b/src/libcore/ops/function.rs:232
[INFO] [stderr]   14:     0x55b2d8f4dccb - lazy_static::lazy::Lazy<T>::get::{{closure}}::h9db49bdfb0673549
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/inline_lazy.rs:31
[INFO] [stderr]   15:     0x55b2d8f44d02 - std::sync::once::Once::call_once::{{closure}}::he269c5cde9e58baa
[INFO] [stderr]                                at /rustc/89c05fd3cc6404a13e1bd71450c6132a2755fa4b/src/libstd/sync/once.rs:264
[INFO] [stderr]   16:     0x55b2d91c29e8 - std::sync::once::Once::call_inner::hfe13d62afcd90901
[INFO] [stderr]                                at src/libstd/sync/once.rs:416
[INFO] [stderr]   17:     0x55b2d8f44a93 - std::sync::once::Once::call_once::h0eaf792ed38e8ae3
[INFO] [stderr]                                at /rustc/89c05fd3cc6404a13e1bd71450c6132a2755fa4b/src/libstd/sync/once.rs:264
[INFO] [stderr]   18:     0x55b2d8f3fdc5 - lazy_static::lazy::Lazy<T>::get::h9e42fe69424e940e
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.4.0/src/inline_lazy.rs:30
[INFO] [stderr]   19:     0x55b2d8f3fdc5 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::__stability::ha65fcabb8c3cdd61
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.2.1/<::lazy_static::__lazy_static_internal macros>:16
[INFO] [stderr]   20:     0x55b2d8f3fdc5 - <build_script_build::LLVM_CONFIG_PATH as core::ops::deref::Deref>::deref::hdcdb7dbea780424f
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.2.1/<::lazy_static::__lazy_static_internal macros>:18
[INFO] [stderr]   21:     0x55b2d8f3d924 - build_script_build::llvm_config::h41c39fce768c7cb6
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.2.1/build.rs:167
[INFO] [stderr]   22:     0x55b2d8f3ec50 - build_script_build::get_llvm_cflags::h8b52a7c836c3ca8b
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.2.1/build.rs:273
[INFO] [stderr]   23:     0x55b2d8f3f034 - build_script_build::main::haff22450248e41bb
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/llvm-sys-70.2.1/build.rs:305
[INFO] [stderr]   24:     0x55b2d8f4235b - std::rt::lang_start::{{closure}}::hb0b2c1c50319ccbf
[INFO] [stderr]                                at /rustc/89c05fd3cc6404a13e1bd71450c6132a2755fa4b/src/libstd/rt.rs:67
[INFO] [stderr]   25:     0x55b2d91c58f3 - std::rt::lang_start_internal::{{closure}}::hf3e6a4ec162517f7
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   26:     0x55b2d91c58f3 - std::panicking::try::do_call::h77ed59d4706bc4a8
[INFO] [stderr]                                at src/libstd/panicking.rs:303
[INFO] [stderr]   27:     0x55b2d91ce717 - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:86
[INFO] [stderr]   28:     0x55b2d91c635b - std::panicking::try::h3e27a5213663f467
[INFO] [stderr]                                at src/libstd/panicking.rs:281
[INFO] [stderr]   29:     0x55b2d91c635b - std::panic::catch_unwind::ha46de5fecc0d9a90
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   30:     0x55b2d91c635b - std::rt::lang_start_internal::hb81abf531274a39e
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   31:     0x55b2d8f42337 - std::rt::lang_start::hf8e7ca16c5cc58ae
[INFO] [stderr]                                at /rustc/89c05fd3cc6404a13e1bd71450c6132a2755fa4b/src/libstd/rt.rs:67
[INFO] [stderr]   32:     0x55b2d8f3fe5a - main
[INFO] [stderr]   33:     0x7fe15ec1bb97 - __libc_start_main
[INFO] [stderr]   34:     0x55b2d8f3c55a - _start
[INFO] [stderr]   35:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "c9fde9a1f2b928f5767be185b330216671d9047d848c69b7b8a52f55b1bfad13"`
[INFO] running `"docker" "rm" "-f" "c9fde9a1f2b928f5767be185b330216671d9047d848c69b7b8a52f55b1bfad13"`
[INFO] [stdout] c9fde9a1f2b928f5767be185b330216671d9047d848c69b7b8a52f55b1bfad13