[INFO] fetching crate yair 0.1.0...
[INFO] testing yair-0.1.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate yair 0.1.0 into /workspace/builds/worker-3-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate yair 0.1.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded endian-type v0.1.2
[INFO] [stderr]   Downloaded redox_users v0.3.1
[INFO] [stderr]   Downloaded rmp v0.8.8
[INFO] [stderr]   Downloaded syn v1.0.58
[INFO] [stderr]   Downloaded rmp-serde v0.15.1
[INFO] [stderr]   Downloaded winapi-util v0.1.3
[INFO] [stderr]   Downloaded dirs-sys v0.3.5
[INFO] [stderr]   Downloaded serde_derive v1.0.118
[INFO] [stderr]   Downloaded dirs v2.0.2
[INFO] [stderr]   Downloaded lit v1.0.3
[INFO] [stderr]   Downloaded arrayref v0.3.5
[INFO] [stderr]   Downloaded serde v1.0.118
[INFO] [stderr]   Downloaded base64 v0.10.1
[INFO] [stderr]   Downloaded same-file v1.0.5
[INFO] [stderr]   Downloaded rand_chacha v0.2.1
[INFO] [stderr]   Downloaded codespan v0.7.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.6.6
[INFO] [stderr]   Downloaded synstructure v0.12.3
[INFO] [stderr]   Downloaded generational-arena v0.2.7
[INFO] [stderr]   Downloaded shared_child v0.3.4
[INFO] [stderr]   Downloaded rand v0.7.2
[INFO] [stderr]   Downloaded constant_time_eq v0.1.4
[INFO] [stderr]   Downloaded arrayvec v0.5.1
[INFO] [stderr]   Downloaded failure_derive v0.1.6
[INFO] [stderr]   Downloaded darling_macro v0.12.2
[INFO] [stderr]   Downloaded yaml-rust v0.3.5
[INFO] [stderr]   Downloaded atty v0.2.13
[INFO] [stderr]   Downloaded smallvec v1.6.1
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.6
[INFO] [stderr]   Downloaded darling v0.12.2
[INFO] [stderr]   Downloaded wasi v0.7.0
[INFO] [stderr]   Downloaded failure v0.1.6
[INFO] [stderr]   Downloaded libc v0.2.66
[INFO] [stderr]   Downloaded aho-corasick v0.7.6
[INFO] [stderr]   Downloaded error-chain v0.12.1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.16
[INFO] [stderr]   Downloaded radix_trie v0.2.1
[INFO] [stderr]   Downloaded vec_map v0.8.1
[INFO] [stderr]   Downloaded unicode-segmentation v1.7.1
[INFO] [stderr]   Downloaded getrandom v0.1.13
[INFO] [stderr]   Downloaded envcache v0.1.3
[INFO] [stderr]   Downloaded term v0.6.1
[INFO] [stderr]   Downloaded enumset v1.0.6
[INFO] [stderr]   Downloaded backtrace-sys v0.1.32
[INFO] [stderr]   Downloaded num-traits v0.2.10
[INFO] [stderr]   Downloaded memchr v2.2.1
[INFO] [stderr]   Downloaded backtrace v0.3.40
[INFO] [stderr]   Downloaded codespan-reporting v0.7.0
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded regex-syntax v0.6.12
[INFO] [stderr]   Downloaded rust-argon2 v0.5.1
[INFO] [stderr]   Downloaded redox_syscall v0.1.56
[INFO] [stderr]   Downloaded nibble_vec v0.1.0
[INFO] [stderr]   Downloaded remove_dir_all v0.5.2
[INFO] [stderr]   Downloaded enumset_derive v0.5.4
[INFO] [stderr]   Downloaded unicode-width v0.1.7
[INFO] [stderr]   Downloaded darling_core v0.12.2
[INFO] [stderr]   Downloaded byteorder v1.3.2
[INFO] [stderr]   Downloaded c2-chacha v0.2.3
[INFO] [stderr]   Downloaded duct v0.13.4
[INFO] [stderr]   Downloaded regex v1.3.1
[INFO] [stderr]   Downloaded os_pipe v0.9.2
[INFO] [stderr]   Downloaded blake2b_simd v0.5.9
[INFO] [stderr]   Downloaded winapi v0.3.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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] 221acdb10e5e1970cbd22a9675c1be7f41d182072ee86b8b1b59f3089f776958
[INFO] running `Command { std: "docker" "start" "221acdb10e5e1970cbd22a9675c1be7f41d182072ee86b8b1b59f3089f776958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "221acdb10e5e1970cbd22a9675c1be7f41d182072ee86b8b1b59f3089f776958", 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" "221acdb10e5e1970cbd22a9675c1be7f41d182072ee86b8b1b59f3089f776958" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "221acdb10e5e1970cbd22a9675c1be7f41d182072ee86b8b1b59f3089f776958", 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" "221acdb10e5e1970cbd22a9675c1be7f41d182072ee86b8b1b59f3089f776958" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "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 serde_derive v1.0.118
[INFO] [stderr]    Compiling libc v0.2.66
[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 unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling envcache v0.1.3
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling vec_map v0.8.1
[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/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (364) 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:     0x63de342d4eb1 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stderr]      1:     0x63de342e5cfa - core[df12db4294e9bfd3]::fmt::write
[INFO] [stderr]      2:     0x63de342d89fc - <std[70759c8f55707aa4]::sys::stdio::unix::Stderr as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stderr]      3:     0x63de342be376 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stderr]      4:     0x63de342d0ea1 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stderr]      5:     0x63de342d105b - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stderr]      6:     0x63de342be422 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stderr]      7:     0x63de342b73f9 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]      8:     0x63de342bec3d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stderr]      9:     0x63de342e646c - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stderr]     10:     0x63de342e61c4 - core[df12db4294e9bfd3]::option::expect_failed
[INFO] [stderr]     11:     0x63de342a4c6b - <core[df12db4294e9bfd3]::option::Option<&str>>::expect
[INFO] [stderr]     12:     0x63de342a410f - build_script_build[52b144914c82e343]::link_in_llvm
[INFO] [stderr]     13:     0x63de342a4c0e - build_script_build[52b144914c82e343]::main
[INFO] [stderr]     14:     0x63de342a4d8b - <fn() as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     15:     0x63de342a403e - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     16:     0x63de342a4049 - std[70759c8f55707aa4]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     17:     0x63de342d0609 - std[70759c8f55707aa4]::rt::lang_start_internal
[INFO] [stderr]     18:     0x63de342a3fd1 - std[70759c8f55707aa4]::rt::lang_start::<()>
[INFO] [stderr]     19:     0x63de342a4dc5 - main
[INFO] [stderr]     20:     0x706d37c9c601 - <unknown>
[INFO] [stderr]     21:     0x706d37c9c718 - __libc_start_main
[INFO] [stderr]     22:     0x63de342a3e75 - _start
[INFO] [stderr]     23:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "221acdb10e5e1970cbd22a9675c1be7f41d182072ee86b8b1b59f3089f776958", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "221acdb10e5e1970cbd22a9675c1be7f41d182072ee86b8b1b59f3089f776958", kill_on_drop: false }`
[INFO] [stdout] 221acdb10e5e1970cbd22a9675c1be7f41d182072ee86b8b1b59f3089f776958
