[INFO] fetching crate yair 0.1.0...
[INFO] testing yair-0.1.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate yair 0.1.0 into /workspace/builds/worker-2-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-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate yair 0.1.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rmp v0.8.8
[INFO] [stderr]   Downloaded term v0.6.1
[INFO] [stderr]   Downloaded os_pipe v0.9.2
[INFO] [stderr]   Downloaded envcache v0.1.3
[INFO] [stderr]   Downloaded rust-argon2 v0.5.1
[INFO] [stderr]   Downloaded codespan v0.7.0
[INFO] [stderr]   Downloaded darling v0.12.2
[INFO] [stderr]   Downloaded generational-arena v0.2.7
[INFO] [stderr]   Downloaded darling_macro v0.12.2
[INFO] [stderr]   Downloaded blake2b_simd v0.5.9
[INFO] [stderr]   Downloaded shared_child v0.3.4
[INFO] [stderr]   Downloaded enumset_derive v0.5.4
[INFO] [stderr]   Downloaded redox_users v0.3.1
[INFO] [stderr]   Downloaded constant_time_eq v0.1.4
[INFO] [stderr]   Downloaded error-chain v0.12.1
[INFO] [stderr]   Downloaded codespan-reporting v0.7.0
[INFO] [stderr]   Downloaded darling_core v0.12.2
[INFO] [stderr]   Downloaded duct v0.13.4
[INFO] [stderr]   Downloaded backtrace v0.3.40
[INFO] [stderr]   Downloaded enumset v1.0.6
[INFO] [stderr]   Downloaded failure v0.1.6
[INFO] [stderr]   Downloaded rmp-serde v0.15.1
[INFO] [stderr]   Downloaded syn v1.0.58
[INFO] [stderr]   Downloaded synstructure v0.12.3
[INFO] [stderr]   Downloaded backtrace-sys v0.1.32
[INFO] [stderr]   Downloaded failure_derive v0.1.6
[INFO] [stderr]   Downloaded lit v1.0.3
[INFO] [stderr]   Downloaded num-traits v0.2.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 875c60016fa3ccacd4af14818256c1967caa8ff00f9068fd62221c5735866929
[INFO] running `Command { std: "docker" "start" "-a" "875c60016fa3ccacd4af14818256c1967caa8ff00f9068fd62221c5735866929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "875c60016fa3ccacd4af14818256c1967caa8ff00f9068fd62221c5735866929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "875c60016fa3ccacd4af14818256c1967caa8ff00f9068fd62221c5735866929", kill_on_drop: false }`
[INFO] [stdout] 875c60016fa3ccacd4af14818256c1967caa8ff00f9068fd62221c5735866929
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 32e79935198f1c3d9ff38874e13c5cdd25cff8c808c5cf27b4f419eb03cb9473
[INFO] running `Command { std: "docker" "start" "-a" "32e79935198f1c3d9ff38874e13c5cdd25cff8c808c5cf27b4f419eb03cb9473", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[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 unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling yair v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling codespan v0.7.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[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' (290) 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:     0x5a9d4f15f6f2 - std::backtrace_rs::backtrace::libunwind::trace::h76861be37b31432e
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5a9d4f15f6f2 - std::backtrace_rs::backtrace::trace_unsynchronized::h58d4003082192c17
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5a9d4f15f6f2 - std::sys::backtrace::_print_fmt::hfe5857a399620d2a
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5a9d4f15f6f2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h52160e9da139e442
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5a9d4f16e6cf - core::fmt::rt::Argument::fmt::h66fe6fef9ecca14a
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x5a9d4f16e6cf - core::fmt::write::hf09a056a304e021a
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/fmt/mod.rs:1468:25
[INFO] [stderr]      6:     0x5a9d4f13bd41 - std::io::default_write_fmt::h7567c5950fb0173c
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5a9d4f13bd41 - std::io::Write::write_fmt::h361c7127187cda65
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]      8:     0x5a9d4f141bf2 - std::sys::backtrace::BacktraceLock::print::h15104dbcf0fd1f14
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5a9d4f14397c - std::panicking::default_hook::{{closure}}::h0fa6cd8dbe0dd76b
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:301:27
[INFO] [stderr]     10:     0x5a9d4f1437d6 - std::panicking::default_hook::h8d20506cf72e4831
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:328:9
[INFO] [stderr]     11:     0x5a9d4f144005 - std::panicking::panic_with_hook::h746880a052e02c85
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:834:13
[INFO] [stderr]     12:     0x5a9d4f143e9a - std::panicking::panic_handler::{{closure}}::h14b95830f89d14b3
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:707:13
[INFO] [stderr]     13:     0x5a9d4f141d29 - std::sys::backtrace::__rust_end_short_backtrace::h7ddaac0e9609a83d
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5a9d4f1307dd - __rustc[76f7e7187978e2f8]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:698:5
[INFO] [stderr]     15:     0x5a9d4f171c10 - core::panicking::panic_fmt::heb245a301f4395db
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/panicking.rs:78:14
[INFO] [stderr]     16:     0x5a9d4f1713db - core::panicking::panic_display::hdaa9e1118a7cec71
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/panicking.rs:262:5
[INFO] [stderr]     17:     0x5a9d4f1713db - core::option::expect_failed::hf04fa468fc2005d7
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/option.rs:2178:5
[INFO] [stderr]     18:     0x5a9d4f1259cb - core::option::Option<T>::expect::hded26366935ab012
[INFO] [stderr]     19:     0x5a9d4f124c67 - build_script_build::link_in_llvm::h46675412452af4a0
[INFO] [stderr]     20:     0x5a9d4f125466 - build_script_build::main::h275c4b484779b882
[INFO] [stderr]     21:     0x5a9d4f1256a3 - core::ops::function::FnOnce::call_once::h00cb7062b6e4a70a
[INFO] [stderr]     22:     0x5a9d4f1254c6 - std::sys::backtrace::__rust_begin_short_backtrace::h8f5ae54876bd0375
[INFO] [stderr]     23:     0x5a9d4f1254a9 - std::rt::lang_start::{{closure}}::hba39c52947ff7dff
[INFO] [stderr]     24:     0x5a9d4f13d5b0 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h92f7271baace0227
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     25:     0x5a9d4f13d5b0 - std::panicking::catch_unwind::do_call::hab80bc7615f9a56f
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:590:40
[INFO] [stderr]     26:     0x5a9d4f13d5b0 - std::panicking::catch_unwind::h44920ff533ed11dd
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:553:19
[INFO] [stderr]     27:     0x5a9d4f13d5b0 - std::panic::catch_unwind::hbc4760794652046f
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panic.rs:359:14
[INFO] [stderr]     28:     0x5a9d4f13d5b0 - std::rt::lang_start_internal::{{closure}}::h017b9ee7d9dfccf2
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/rt.rs:175:24
[INFO] [stderr]     29:     0x5a9d4f13d5b0 - std::panicking::catch_unwind::do_call::h5c448dae61c3a22b
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:590:40
[INFO] [stderr]     30:     0x5a9d4f13d5b0 - std::panicking::catch_unwind::ha3a2750d16137715
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:553:19
[INFO] [stderr]     31:     0x5a9d4f13d5b0 - std::panic::catch_unwind::ha56344eb931bca1a
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panic.rs:359:14
[INFO] [stderr]     32:     0x5a9d4f13d5b0 - std::rt::lang_start_internal::h4e6c18fadc4e7470
[INFO] [stderr]                                  at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/rt.rs:171:5
[INFO] [stderr]     33:     0x5a9d4f125491 - std::rt::lang_start::hbb49b09fa15bfbe5
[INFO] [stderr]     34:     0x5a9d4f125a05 - main
[INFO] [stderr]     35:     0x74149dc9b1ca - <unknown>
[INFO] [stderr]     36:     0x74149dc9b28b - __libc_start_main
[INFO] [stderr]     37:     0x5a9d4f124ac5 - _start
[INFO] [stderr]     38:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "32e79935198f1c3d9ff38874e13c5cdd25cff8c808c5cf27b4f419eb03cb9473", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32e79935198f1c3d9ff38874e13c5cdd25cff8c808c5cf27b4f419eb03cb9473", kill_on_drop: false }`
[INFO] [stdout] 32e79935198f1c3d9ff38874e13c5cdd25cff8c808c5cf27b4f419eb03cb9473