[INFO] fetching crate yair 0.1.0...
[INFO] testing yair-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[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 c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde_derive v1.0.118
[INFO] [stderr]   Downloaded same-file v1.0.5
[INFO] [stderr]   Downloaded envcache v0.1.3
[INFO] [stderr]   Downloaded arrayref v0.3.5
[INFO] [stderr]   Downloaded rmp v0.8.8
[INFO] [stderr]   Downloaded darling_macro v0.12.2
[INFO] [stderr]   Downloaded constant_time_eq v0.1.4
[INFO] [stderr]   Downloaded codespan-reporting v0.7.0
[INFO] [stderr]   Downloaded os_pipe v0.9.2
[INFO] [stderr]   Downloaded darling_core v0.12.2
[INFO] [stderr]   Downloaded error-chain v0.12.1
[INFO] [stderr]   Downloaded serde v1.0.118
[INFO] [stderr]   Downloaded syn v1.0.58
[INFO] [stderr]   Downloaded itertools v0.9.0
[INFO] [stderr]   Downloaded blake2b_simd v0.5.9
[INFO] [stderr]   Downloaded rust-argon2 v0.5.1
[INFO] [stderr]   Downloaded redox_users v0.3.1
[INFO] [stderr]   Downloaded term v0.6.1
[INFO] [stderr]   Downloaded lit v1.0.3
[INFO] [stderr]   Downloaded shared_child v0.3.4
[INFO] [stderr]   Downloaded duct v0.13.4
[INFO] [stderr]   Downloaded enumset_derive v0.5.4
[INFO] [stderr]   Downloaded enumset v1.0.6
[INFO] [stderr]   Downloaded generational-arena v0.2.7
[INFO] [stderr]   Downloaded dirs-sys v0.3.5
[INFO] [stderr]   Downloaded darling v0.12.2
[INFO] [stderr]   Downloaded dirs v2.0.2
[INFO] [stderr]   Downloaded rmp-serde v0.15.1
[INFO] [stderr]   Downloaded codespan v0.7.0
[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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e5f5512e9e66bd122d9a2c2f85a8a53ecd081b19102d34e337afdcdfdaa42d3a
[INFO] running `Command { std: "docker" "start" "-a" "e5f5512e9e66bd122d9a2c2f85a8a53ecd081b19102d34e337afdcdfdaa42d3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5f5512e9e66bd122d9a2c2f85a8a53ecd081b19102d34e337afdcdfdaa42d3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5f5512e9e66bd122d9a2c2f85a8a53ecd081b19102d34e337afdcdfdaa42d3a", kill_on_drop: false }`
[INFO] [stdout] e5f5512e9e66bd122d9a2c2f85a8a53ecd081b19102d34e337afdcdfdaa42d3a
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3358d644b7157eaa25119024858479264aeb971ff6a8b3f2955c7e6812f6553
[INFO] running `Command { std: "docker" "start" "-a" "e3358d644b7157eaa25119024858479264aeb971ff6a8b3f2955c7e6812f6553", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling envcache v0.1.3
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling shared_child v0.3.4
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling os_pipe v0.9.2
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling yair v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling duct v0.13.4
[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-e2f43c6a40b2f46f/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (348) 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:     0x617f3250cf32 - std::backtrace_rs::backtrace::libunwind::trace::ha50a1f28c7a10cf8
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x617f3250cf32 - std::backtrace_rs::backtrace::trace_unsynchronized::h34f8c4ec82a320bc
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x617f3250cf32 - std::sys::backtrace::_print_fmt::h2d23e84e13d343bc
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x617f3250cf32 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hde21067283f7e82e
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x617f3251bd8f - core::fmt::rt::Argument::fmt::he65307037dca33c6
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x617f3251bd8f - core::fmt::write::h24186904251c31cb
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]      6:     0x617f324e9f23 - std::io::default_write_fmt::hdc5d19b6df666f61
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x617f324e9f23 - std::io::Write::write_fmt::h3ab9f1f4d8d19b72
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x617f324efd92 - std::sys::backtrace::BacktraceLock::print::he038489aba5894a6
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x617f324f1acc - std::panicking::default_hook::{{closure}}::h80a26d916c49679b
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x617f324f1926 - std::panicking::default_hook::he2e9efee79b3dce9
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x617f324f20a5 - std::panicking::panic_with_hook::hf5648b7cec6bc73e
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x617f324f1f3a - std::panicking::panic_handler::{{closure}}::h1b2ed3864ba94359
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x617f324efec9 - std::sys::backtrace::__rust_end_short_backtrace::hd0186b2b27f5aaa7
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x617f324deb1d - __rustc[f7dae8b92efe1d7a]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x617f3251f320 - core::panicking::panic_fmt::hb5d6b83773432920
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x617f3251eacb - core::panicking::panic_display::hd372a17ab5653cf6
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/panicking.rs:264:5
[INFO] [stderr]     17:     0x617f3251eacb - core::option::expect_failed::he36df99dc8c76191
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/option.rs:2183:5
[INFO] [stderr]     18:     0x617f324d3ffb - core::option::Option<T>::expect::hfea84f13abdc73f1
[INFO] [stderr]     19:     0x617f324d3297 - build_script_build::link_in_llvm::hdec4b5a0a89cc41b
[INFO] [stderr]     20:     0x617f324d3a96 - build_script_build::main::h59e8c125ee1a2e37
[INFO] [stderr]     21:     0x617f324d3d13 - core::ops::function::FnOnce::call_once::hf827d5d37622a301
[INFO] [stderr]     22:     0x617f324d3af6 - std::sys::backtrace::__rust_begin_short_backtrace::h1305b8b9232e74bd
[INFO] [stderr]     23:     0x617f324d3ad9 - std::rt::lang_start::{{closure}}::hf821e2679009d1c6
[INFO] [stderr]     24:     0x617f324eb780 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h8434f550918e723f
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     25:     0x617f324eb780 - std::panicking::catch_unwind::do_call::h7f7a838f33db43be
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:590:40
[INFO] [stderr]     26:     0x617f324eb780 - std::panicking::catch_unwind::hf345702047129f6d
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:553:19
[INFO] [stderr]     27:     0x617f324eb780 - std::panic::catch_unwind::h42f92c278294a3a0
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panic.rs:359:14
[INFO] [stderr]     28:     0x617f324eb780 - std::rt::lang_start_internal::{{closure}}::ha6834eab5ce60f45
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/rt.rs:175:24
[INFO] [stderr]     29:     0x617f324eb780 - std::panicking::catch_unwind::do_call::hf4afda32c60c9e55
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:590:40
[INFO] [stderr]     30:     0x617f324eb780 - std::panicking::catch_unwind::hbfda5503aab4db1e
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:553:19
[INFO] [stderr]     31:     0x617f324eb780 - std::panic::catch_unwind::h1a1ed11560d244f4
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panic.rs:359:14
[INFO] [stderr]     32:     0x617f324eb780 - std::rt::lang_start_internal::h1f713c0146d469ad
[INFO] [stderr]                                  at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/rt.rs:171:5
[INFO] [stderr]     33:     0x617f324d3ac1 - std::rt::lang_start::hfe65cb7181abc1c7
[INFO] [stderr]     34:     0x617f324d4035 - main
[INFO] [stderr]     35:     0x75d8c3ea51ca - <unknown>
[INFO] [stderr]     36:     0x75d8c3ea528b - __libc_start_main
[INFO] [stderr]     37:     0x617f324d30f5 - _start
[INFO] [stderr]     38:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e3358d644b7157eaa25119024858479264aeb971ff6a8b3f2955c7e6812f6553", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3358d644b7157eaa25119024858479264aeb971ff6a8b3f2955c7e6812f6553", kill_on_drop: false }`
[INFO] [stdout] e3358d644b7157eaa25119024858479264aeb971ff6a8b3f2955c7e6812f6553