[INFO] fetching crate yair 0.1.0...
[INFO] testing yair-0.1.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate yair 0.1.0 into /workspace/builds/worker-6-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-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate yair 0.1.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v1.0.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.24
[INFO] [stderr]   Downloaded serde_derive v1.0.118
[INFO] [stderr]   Downloaded generational-arena v0.2.7
[INFO] [stderr]   Downloaded failure_derive v0.1.6
[INFO] [stderr]   Downloaded num-traits v0.2.10
[INFO] [stderr]   Downloaded unicode-width v0.1.7
[INFO] [stderr]   Downloaded shared_child v0.3.4
[INFO] [stderr]   Downloaded darling v0.12.2
[INFO] [stderr]   Downloaded codespan v0.7.0
[INFO] [stderr]   Downloaded once_cell v1.5.2
[INFO] [stderr]   Downloaded base64 v0.10.1
[INFO] [stderr]   Downloaded term v0.6.1
[INFO] [stderr]   Downloaded lit v1.0.3
[INFO] [stderr]   Downloaded darling_core v0.12.2
[INFO] [stderr]   Downloaded wasi v0.7.0
[INFO] [stderr]   Downloaded redox_syscall v0.1.56
[INFO] [stderr]   Downloaded arrayref v0.3.5
[INFO] [stderr]   Downloaded regex v1.3.1
[INFO] [stderr]   Downloaded aho-corasick v0.7.6
[INFO] [stderr]   Downloaded winapi v0.3.8
[INFO] [stderr]   Downloaded backtrace v0.3.40
[INFO] [stderr]   Downloaded constant_time_eq v0.1.4
[INFO] [stderr]   Downloaded crossbeam-utils v0.6.6
[INFO] [stderr]   Downloaded walkdir v2.3.1
[INFO] [stderr]   Downloaded termcolor v1.1.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.12
[INFO] [stderr]   Downloaded codespan-reporting v0.7.0
[INFO] [stderr]   Downloaded os_pipe v0.9.2
[INFO] [stderr]   Downloaded duct v0.13.4
[INFO] [stderr]   Downloaded enumset v1.0.6
[INFO] [stderr]   Downloaded backtrace-sys v0.1.32
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.6
[INFO] [stderr]   Downloaded rand v0.7.2
[INFO] [stderr]   Downloaded libc v0.2.66
[INFO] [stderr]   Downloaded vec_map v0.8.1
[INFO] [stderr]   Downloaded thread_local v0.3.6
[INFO] [stderr]   Downloaded rand_chacha v0.2.1
[INFO] [stderr]   Downloaded remove_dir_all v0.5.2
[INFO] [stderr]   Downloaded redox_users v0.3.1
[INFO] [stderr]   Downloaded winapi-util v0.1.3
[INFO] [stderr]   Downloaded envcache v0.1.3
[INFO] [stderr]   Downloaded yaml-rust v0.3.5
[INFO] [stderr]   Downloaded memchr v2.2.1
[INFO] [stderr]   Downloaded failure v0.1.6
[INFO] [stderr]   Downloaded rdrand v0.4.0
[INFO] [stderr]   Downloaded rust-argon2 v0.5.1
[INFO] [stderr]   Downloaded darling_macro v0.12.2
[INFO] [stderr]   Downloaded enumset_derive v0.5.4
[INFO] [stderr]   Downloaded atty v0.2.13
[INFO] [stderr]   Downloaded version_check v0.1.5
[INFO] [stderr]   Downloaded error-chain v0.12.1
[INFO] [stderr]   Downloaded itertools v0.9.0
[INFO] [stderr]   Downloaded c2-chacha v0.2.3
[INFO] [stderr]   Downloaded getrandom v0.1.13
[INFO] [stderr]   Downloaded rustc-demangle v0.1.16
[INFO] [stderr]   Downloaded synstructure v0.12.3
[INFO] [stderr]   Downloaded rand_os v0.1.3
[INFO] [stderr]   Downloaded blake2b_simd v0.5.9
[INFO] [stderr]   Downloaded autocfg v0.1.7
[INFO] [stderr]   Downloaded syn v1.0.58
[INFO] [stderr]   Downloaded serde v1.0.118
[INFO] [stderr]   Downloaded tempfile v3.1.0
[INFO] [stderr]   Downloaded same-file v1.0.5
[INFO] [stderr]   Downloaded smallvec v1.6.1
[INFO] [stderr]   Downloaded byteorder v1.3.2
[INFO] [stderr]   Downloaded rmp-serde v0.15.1
[INFO] [stderr]   Downloaded unicode-xid v0.2.0
[INFO] [stderr]   Downloaded rmp v0.8.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c352fb6373d7bfc82dba3cb57c4600d7a802dd63c1e5bdc5a0ada41e777a318c
[INFO] running `Command { std: "docker" "start" "-a" "c352fb6373d7bfc82dba3cb57c4600d7a802dd63c1e5bdc5a0ada41e777a318c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c352fb6373d7bfc82dba3cb57c4600d7a802dd63c1e5bdc5a0ada41e777a318c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c352fb6373d7bfc82dba3cb57c4600d7a802dd63c1e5bdc5a0ada41e777a318c", kill_on_drop: false }`
[INFO] [stdout] c352fb6373d7bfc82dba3cb57c4600d7a802dd63c1e5bdc5a0ada41e777a318c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 488398ccc28acb8c3a6f2cdc31fd2049c489c3f1de96b19a15cafc07f919d620
[INFO] running `Command { std: "docker" "start" "-a" "488398ccc28acb8c3a6f2cdc31fd2049c489c3f1de96b19a15cafc07f919d620", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[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 bitflags v1.2.1
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling envcache v0.1.3
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling yair v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling codespan v0.7.0
[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_DEV_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/debug/build/yair-873fa2178ee2a223/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (399) 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:     0x5bb8eff25152 - std::backtrace_rs::backtrace::libunwind::trace::h62f3c6bea0fedab3
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5bb8eff25152 - std::backtrace_rs::backtrace::trace_unsynchronized::hc41aaca6c0af0bde
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5bb8eff25152 - std::sys::backtrace::_print_fmt::h33ac2b97007106cc
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5bb8eff25152 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h4e0a3aeea0f9c085
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5bb8eff340cf - core::fmt::rt::Argument::fmt::h1edd6a3e00b22f10
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x5bb8eff340cf - core::fmt::write::hecf68a131630c74d
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/mod.rs:1468:25
[INFO] [stderr]      6:     0x5bb8eff01c01 - std::io::default_write_fmt::haf8355dc2afbec95
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5bb8eff01c01 - std::io::Write::write_fmt::h93c9a261259c931a
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x5bb8eff07a82 - std::sys::backtrace::BacktraceLock::print::h75160192768e5621
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5bb8eff0980c - std::panicking::default_hook::{{closure}}::h14d82797cfb1ddcb
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x5bb8eff09666 - std::panicking::default_hook::h63f9bf8161c5d325
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x5bb8eff09e95 - std::panicking::panic_with_hook::h3173740e06bd0752
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x5bb8eff09d2a - std::panicking::panic_handler::{{closure}}::hbac492c61eb56a87
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x5bb8eff07bb9 - std::sys::backtrace::__rust_end_short_backtrace::haa3eac3df9535320
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5bb8efef666d - __rustc[de0091b922c53d7e]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x5bb8eff37610 - core::panicking::panic_fmt::h5138da2ef87be35b
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x5bb8eff36ddb - core::panicking::panic_display::h8f7430eb1037854c
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/panicking.rs:259:5
[INFO] [stderr]     17:     0x5bb8eff36ddb - core::option::expect_failed::h8e1641c1f6197e5b
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/option.rs:2178:5
[INFO] [stderr]     18:     0x5bb8efeeb7cb - core::option::Option<T>::expect::hd1871cb525bc18fc
[INFO] [stderr]     19:     0x5bb8efeeaa67 - build_script_build::link_in_llvm::h5f31f316052bed73
[INFO] [stderr]     20:     0x5bb8efeeb266 - build_script_build::main::hbb83388e8e9d47ff
[INFO] [stderr]     21:     0x5bb8efeeb4a3 - core::ops::function::FnOnce::call_once::h37a40c067a462a78
[INFO] [stderr]     22:     0x5bb8efeeb2c6 - std::sys::backtrace::__rust_begin_short_backtrace::hcc78f9d0a37f241a
[INFO] [stderr]     23:     0x5bb8efeeb2a9 - std::rt::lang_start::{{closure}}::heb33e0f5b428c12c
[INFO] [stderr]     24:     0x5bb8eff03450 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hc7ed5622678f5124
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     25:     0x5bb8eff03450 - std::panicking::catch_unwind::do_call::hc59414a11cf2a25a
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40
[INFO] [stderr]     26:     0x5bb8eff03450 - std::panicking::catch_unwind::hff67b45e0819a036
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19
[INFO] [stderr]     27:     0x5bb8eff03450 - std::panic::catch_unwind::hec0fb0db85f7fd60
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14
[INFO] [stderr]     28:     0x5bb8eff03450 - std::rt::lang_start_internal::{{closure}}::h74bea026352620a3
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/rt.rs:175:24
[INFO] [stderr]     29:     0x5bb8eff03450 - std::panicking::catch_unwind::do_call::h931ef1bf7bdfcae2
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40
[INFO] [stderr]     30:     0x5bb8eff03450 - std::panicking::catch_unwind::h3816830c825cbe04
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19
[INFO] [stderr]     31:     0x5bb8eff03450 - std::panic::catch_unwind::h408406c8f02ebb9d
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14
[INFO] [stderr]     32:     0x5bb8eff03450 - std::rt::lang_start_internal::hce2b8b328837374b
[INFO] [stderr]                                  at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/rt.rs:171:5
[INFO] [stderr]     33:     0x5bb8efeeb291 - std::rt::lang_start::ha5398c95ec7e7b8a
[INFO] [stderr]     34:     0x5bb8efeeb805 - main
[INFO] [stderr]     35:     0x7629ab27b1ca - <unknown>
[INFO] [stderr]     36:     0x7629ab27b28b - __libc_start_main
[INFO] [stderr]     37:     0x5bb8efeea8c5 - _start
[INFO] [stderr]     38:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "488398ccc28acb8c3a6f2cdc31fd2049c489c3f1de96b19a15cafc07f919d620", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "488398ccc28acb8c3a6f2cdc31fd2049c489c3f1de96b19a15cafc07f919d620", kill_on_drop: false }`
[INFO] [stdout] 488398ccc28acb8c3a6f2cdc31fd2049c489c3f1de96b19a15cafc07f919d620
