[INFO] fetching crate yair 0.1.0...
[INFO] testing yair-0.1.0 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate yair 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate yair 0.1.0
[INFO] finished tweaking crates.io crate yair 0.1.0
[INFO] tweaked toml for crates.io crate yair 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate yair 0.1.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate yair 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 7403cb6f68c5c9b62a3dd27744f579ec2beffd47f3a2b786803c7866bfa98a3c
[INFO] running `Command { std: "docker" "start" "7403cb6f68c5c9b62a3dd27744f579ec2beffd47f3a2b786803c7866bfa98a3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7403cb6f68c5c9b62a3dd27744f579ec2beffd47f3a2b786803c7866bfa98a3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7403cb6f68c5c9b62a3dd27744f579ec2beffd47f3a2b786803c7866bfa98a3c" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7403cb6f68c5c9b62a3dd27744f579ec2beffd47f3a2b786803c7866bfa98a3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "7403cb6f68c5c9b62a3dd27744f579ec2beffd47f3a2b786803c7866bfa98a3c" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling envcache v0.1.3
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling yair v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr] error: failed to run custom build command for `yair v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_RELEASE_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/release/build/yair/fbdeb0171b16d4ee/out/build_script_build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (347) panicked at build.rs:18:10:
[INFO] [stderr]   Required environment variable 'YAIR_LLVM_INSTALL_DIR' was not set!
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x61f30b232d01 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stderr]      1:     0x61f30b24389a - core[a373ad73a504971]::fmt::write
[INFO] [stderr]      2:     0x61f30b2364cc - <std[617be2ca0a6fd877]::sys::stdio::unix::Stderr as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stderr]      3:     0x61f30b21c0f6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stderr]      4:     0x61f30b22ec01 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stderr]      5:     0x61f30b22edbb - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stderr]      6:     0x61f30b21c1a2 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stderr]      7:     0x61f30b215159 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]      8:     0x61f30b21c98d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stderr]      9:     0x61f30b24400c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stderr]     10:     0x61f30b243d64 - core[a373ad73a504971]::option::expect_failed
[INFO] [stderr]     11:     0x61f30b202dbb - <core[a373ad73a504971]::option::Option<&str>>::expect
[INFO] [stderr]     12:     0x61f30b20225f - build_script_build[9406baf478664973]::link_in_llvm
[INFO] [stderr]     13:     0x61f30b202d5e - build_script_build[9406baf478664973]::main
[INFO] [stderr]     14:     0x61f30b202edb - <fn() as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     15:     0x61f30b20218e - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     16:     0x61f30b202199 - std[617be2ca0a6fd877]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     17:     0x61f30b22e3a8 - std[617be2ca0a6fd877]::rt::lang_start_internal
[INFO] [stderr]     18:     0x61f30b202121 - std[617be2ca0a6fd877]::rt::lang_start::<()>
[INFO] [stderr]     19:     0x61f30b202f15 - main
[INFO] [stderr]     20:     0x75d3da2d0601 - <unknown>
[INFO] [stderr]     21:     0x75d3da2d0718 - __libc_start_main
[INFO] [stderr]     22:     0x61f30b201fc5 - _start
[INFO] [stderr]     23:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "7403cb6f68c5c9b62a3dd27744f579ec2beffd47f3a2b786803c7866bfa98a3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7403cb6f68c5c9b62a3dd27744f579ec2beffd47f3a2b786803c7866bfa98a3c", kill_on_drop: false }`
[INFO] [stdout] 7403cb6f68c5c9b62a3dd27744f579ec2beffd47f3a2b786803c7866bfa98a3c
