[INFO] fetching crate mdns-client 0.1.0...
[INFO] checking mdns-client-0.1.0 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] extracting crate mdns-client 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate mdns-client 0.1.0 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdns-client 0.1.0
[INFO] finished tweaking crates.io crate mdns-client 0.1.0
[INFO] tweaked toml for crates.io crate mdns-client 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 48 packages to latest compatible versions
[INFO] [stderr]       Adding bytes v1.0.1 (available: v1.8.0)
[INFO] [stderr]       Adding dns-message-parser v0.4.6 (available: v0.7.0)
[INFO] [stderr]       Adding pnet v0.27.2 (available: v0.35.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pnet_packet v0.27.2
[INFO] [stderr]   Downloaded syntex_errors v0.42.0
[INFO] [stderr]   Downloaded pnet_transport v0.27.2
[INFO] [stderr]   Downloaded syntex_pos v0.42.0
[INFO] [stderr]   Downloaded syntex v0.42.2
[INFO] [stderr]   Downloaded pnet_sys v0.27.2
[INFO] [stderr]   Downloaded pnet v0.27.2
[INFO] [stderr]   Downloaded ipnetwork v0.17.0
[INFO] [stderr]   Downloaded dns-message-parser v0.4.6
[INFO] [stderr]   Downloaded pnet_datalink v0.27.2
[INFO] [stderr]   Downloaded pnet_macros v0.27.2
[INFO] [stderr]   Downloaded pnet_macros_support v0.27.2
[INFO] [stderr]   Downloaded pnet_base v0.27.2
[INFO] [stderr]   Downloaded syntex_syntax v0.42.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e12390deaf27807de98695b22df6fc79fb208fdefc71c1f4a174691ec1749936
[INFO] running `Command { std: "docker" "start" "-a" "e12390deaf27807de98695b22df6fc79fb208fdefc71c1f4a174691ec1749936", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e12390deaf27807de98695b22df6fc79fb208fdefc71c1f4a174691ec1749936", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e12390deaf27807de98695b22df6fc79fb208fdefc71c1f4a174691ec1749936", kill_on_drop: false }`
[INFO] [stdout] e12390deaf27807de98695b22df6fc79fb208fdefc71c1f4a174691ec1749936
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4cf05b9792b3c943871f49a5ade51ded381c891bce7551b66f9fa4756ed6a94
[INFO] running `Command { std: "docker" "start" "-a" "c4cf05b9792b3c943871f49a5ade51ded381c891bce7551b66f9fa4756ed6a94", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]     Checking pnet_base v0.27.2
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling pnet v0.27.2
[INFO] [stderr]    Compiling libc v0.2.164
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]     Checking pnet_sys v0.27.2
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking ipnetwork v0.17.0
[INFO] [stderr]     Checking serde_json v1.0.133
[INFO] [stderr]     Checking pnet_macros_support v0.27.2
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking pnet_datalink v0.27.2
[INFO] [stderr]     Checking dns-message-parser v0.4.6
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.27.2
[INFO] [stderr]    Compiling pnet_packet v0.27.2
[INFO] [stderr] error: failed to run custom build command for `pnet_packet v0.27.2`
[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/pnet_packet-af1613a917e51ac3/build-script-build` (signal: 6, SIGABRT: process abort signal)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at core/src/panicking.rs:223:5:
[INFO] [stderr]   unsafe precondition(s) violated: slice::get_unchecked requires that the index is within the slice
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5a73797dbb1a - std::backtrace_rs::backtrace::libunwind::trace::h4a182ed5026c4960
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stderr]      1:     0x5a73797dbb1a - std::backtrace_rs::backtrace::trace_unsynchronized::hd36eaf0d0af663ac
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5a73797dbb1a - std::sys::backtrace::_print_fmt::h5bc686de8bf76aa3
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5a73797dbb1a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hd8bd9250b5d34cf2
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5a73797faf73 - core::fmt::rt::Argument::fmt::h479db8f948910918
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/fmt/rt.rs:177:76
[INFO] [stderr]      5:     0x5a73797faf73 - core::fmt::write::h8ea7001525e04e92
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/fmt/mod.rs:1189:21
[INFO] [stderr]      6:     0x5a73797d8b53 - std::io::Write::write_fmt::h9a3a3a90a20c720b
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/io/mod.rs:1884:15
[INFO] [stderr]      7:     0x5a73797db962 - std::sys::backtrace::BacktraceLock::print::h524f4afae71bff25
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      8:     0x5a73797dc92c - std::panicking::default_hook::{{closure}}::hbf0efdb45c0ec2fa
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:268:22
[INFO] [stderr]      9:     0x5a73797dc772 - std::panicking::default_hook::hd8655fd75a36fb4e
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:295:9
[INFO] [stderr]     10:     0x5a73797dcf27 - std::panicking::rust_panic_with_hook::hfd3e39fd18e5a522
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:801:13
[INFO] [stderr]     11:     0x5a73797dcd86 - std::panicking::begin_panic_handler::{{closure}}::h541106c2fc98c78e
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:667:13
[INFO] [stderr]     12:     0x5a73797dbff9 - std::sys::backtrace::__rust_end_short_backtrace::hd41b812be983a407
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/sys/backtrace.rs:170:18
[INFO] [stderr]     13:     0x5a73797dca4c - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:665:5
[INFO] [stderr]     14:     0x5a73797f9d9d - core::panicking::panic_nounwind_fmt::runtime::h603a78faffa60500
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/panicking.rs:119:22
[INFO] [stderr]     15:     0x5a73797f9d9d - core::panicking::panic_nounwind_fmt::h10e990d0b43f11f6
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/intrinsics/mod.rs:3535:9
[INFO] [stderr]     16:     0x5a73797f9e32 - core::panicking::panic_nounwind::h77de2e8d15ec29ff
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/panicking.rs:223:5
[INFO] [stderr]     17:     0x5a737971e31b - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::precondition_check::hbc487cc379510b9f
[INFO] [stderr]     18:     0x5a737971df62 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::h6dc8a0aa6bca94d9
[INFO] [stderr]     19:     0x5a73796a7bb5 - core::slice::<impl [T]>::get_unchecked::h74b22470062f9473
[INFO] [stderr]     20:     0x5a73795962b4 - <alloc::vec::Vec<T> as syntex_syntax::util::move_map::MoveMap<T>>::move_flat_map::h8e80743ea1d28b4a
[INFO] [stderr]     21:     0x5a737962601c - syntex_syntax::fold::noop_fold_mod::h99b30c9662a3bd5a
[INFO] [stderr]     22:     0x5a73796dd5bf - syntex_syntax::fold::Folder::fold_mod::he587c82fd1f44f6d
[INFO] [stderr]     23:     0x5a737961e51b - syntex_syntax::fold::noop_fold_item_kind::h119c16252279cfe3
[INFO] [stderr]     24:     0x5a73796dd2bf - syntex_syntax::fold::Folder::fold_item_kind::h855b09271cd7d19d
[INFO] [stderr]     25:     0x5a737962774d - syntex_syntax::fold::noop_fold_item_simple::hea6ae76c1c331b10
[INFO] [stderr]     26:     0x5a73796dd1ff - syntex_syntax::fold::Folder::fold_item_simple::ha3e5ac588efa7f5b
[INFO] [stderr]     27:     0x5a7379626d0f - syntex_syntax::fold::noop_fold_item::{{closure}}::hbfb5502e040dd14d
[INFO] [stderr]     28:     0x5a73796b3585 - syntex_syntax::ptr::P<T>::map::hbe1c49c6ffe52bd8
[INFO] [stderr]     29:     0x5a7379626c7b - syntex_syntax::fold::noop_fold_item::h18369319b4ed35f2
[INFO] [stderr]     30:     0x5a73796ee414 - syntex_syntax::ext::expand::expand_multi_modified::hca7447815c5416bd
[INFO] [stderr]     31:     0x5a7379724338 - syntex_syntax::ext::decorator::expand_annotatable::h1fcdeb50c3058749
[INFO] [stderr]     32:     0x5a73796ed40c - syntex_syntax::ext::expand::expand_item::h49c732b6c089e99f
[INFO] [stderr]     33:     0x5a73796f0a3c - <syntex_syntax::ext::expand::MacroExpander as syntex_syntax::fold::Folder>::fold_item::h2838ed1ca1366071
[INFO] [stderr]     34:     0x5a73796263c0 - syntex_syntax::fold::noop_fold_crate::hf2057b79e3f0de03
[INFO] [stderr]     35:     0x5a73796f022e - <syntex_syntax::ext::expand::MacroExpander as syntex_syntax::fold::Folder>::fold_crate::h3d2a54ad23a8fd56
[INFO] [stderr]     36:     0x5a73796f18b2 - syntex_syntax::ext::expand::expand_crate_with_expander::hf69b2005f2eec2f0
[INFO] [stderr]     37:     0x5a73796f1414 - syntex_syntax::ext::expand::expand_crate::h762e33e6e8d41349
[INFO] [stderr]     38:     0x5a73795694b9 - syntex::Registry::expand_crate::h2f2b7075ffa82088
[INFO] [stderr]     39:     0x5a737931c3fc - syntex::Registry::expand::h666bbfd41dab2d5d
[INFO] [stderr]     40:     0x5a737931ccd1 - build_script_build::macros::expand::hc0eb5833e01ad190
[INFO] [stderr]     41:     0x5a737931ceb6 - build_script_build::main::h4765558f721bcb07
[INFO] [stderr]     42:     0x5a737931b8b3 - core::ops::function::FnOnce::call_once::hc3a2442e57fca70f
[INFO] [stderr]     43:     0x5a737931b716 - std::sys::backtrace::__rust_begin_short_backtrace::h4429fa16dba5cc25
[INFO] [stderr]     44:     0x5a737931b6f9 - std::rt::lang_start::{{closure}}::h4656fcd457cdb944
[INFO] [stderr]     45:     0x5a73797d4e87 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h85d3b6433c6201ad
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     46:     0x5a73797d4e87 - std::panicking::try::do_call::h1e58a303c26811b2
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:557:40
[INFO] [stderr]     47:     0x5a73797d4e87 - std::panicking::try::hf884ee642c4250a3
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:520:19
[INFO] [stderr]     48:     0x5a73797d4e87 - std::panic::catch_unwind::h16d69298af9a3692
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panic.rs:358:14
[INFO] [stderr]     49:     0x5a73797d4e87 - std::rt::lang_start_internal::{{closure}}::h5a8a6f94cdf753a6
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/rt.rs:174:48
[INFO] [stderr]     50:     0x5a73797d4e87 - std::panicking::try::do_call::hf6ee2fe994f58e18
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:557:40
[INFO] [stderr]     51:     0x5a73797d4e87 - std::panicking::try::hc1282bf2eeca2940
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panicking.rs:520:19
[INFO] [stderr]     52:     0x5a73797d4e87 - std::panic::catch_unwind::h212572842a792e2c
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/panic.rs:358:14
[INFO] [stderr]     53:     0x5a73797d4e87 - std::rt::lang_start_internal::h9681d29d05b11740
[INFO] [stderr]                                  at /rustc/ff1737bb00913444173658b4e0b274fd79aabf66/library/std/src/rt.rs:174:20
[INFO] [stderr]     54:     0x5a737931b6d7 - std::rt::lang_start::h2b2c09aa6027e351
[INFO] [stderr]     55:     0x5a737931ced5 - main
[INFO] [stderr]     56:     0x70e41027ed90 - <unknown>
[INFO] [stderr]     57:     0x70e41027ee40 - __libc_start_main
[INFO] [stderr]     58:     0x5a737931b4e5 - _start
[INFO] [stderr]     59:                0x0 - <unknown>
[INFO] [stderr]   thread caused non-unwinding panic. aborting.
[INFO] running `Command { std: "docker" "inspect" "c4cf05b9792b3c943871f49a5ade51ded381c891bce7551b66f9fa4756ed6a94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4cf05b9792b3c943871f49a5ade51ded381c891bce7551b66f9fa4756ed6a94", kill_on_drop: false }`
[INFO] [stdout] c4cf05b9792b3c943871f49a5ade51ded381c891bce7551b66f9fa4756ed6a94