[INFO] cloning repository https://github.com/klingtnet/ytterbium
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/klingtnet/ytterbium" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fklingtnet%2Fytterbium", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fklingtnet%2Fytterbium'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6a210daece1b61a40b35e74ed6a583bf8ea4a6fd
[INFO] checking klingtnet/ytterbium against master#da897dfb6daa268a965d2d73620316ba56020a19 for pr-76219
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fklingtnet%2Fytterbium" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/klingtnet/ytterbium on toolchain da897dfb6daa268a965d2d73620316ba56020a19
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/klingtnet/ytterbium
[INFO] finished tweaking git repo https://github.com/klingtnet/ytterbium
[INFO] tweaked toml for git repo https://github.com/klingtnet/ytterbium written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/klingtnet/ytterbium already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "fetch" "--locked" "--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 clippy v0.0.212
[INFO] [stderr]   Downloaded if_chain v0.1.3
[INFO] [stderr]   Downloaded hound v2.0.0
[INFO] [stderr]   Downloaded itertools v0.4.19
[INFO] [stderr]   Downloaded rosc v0.1.5
[INFO] [stderr]   Downloaded clippy_lints v0.0.212
[INFO] [stderr]   Downloaded rb v0.2.0
[INFO] [stderr]   Downloaded rsoundio v0.1.6
[INFO] [stderr]   Downloaded portmidi v0.2.4
[INFO] [stderr]   Downloaded bincode v0.5.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b610f62f5ae3849854735c9e2f149d89fcac35d729869d693ac358b865bfbe9f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b610f62f5ae3849854735c9e2f149d89fcac35d729869d693ac358b865bfbe9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b610f62f5ae3849854735c9e2f149d89fcac35d729869d693ac358b865bfbe9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b610f62f5ae3849854735c9e2f149d89fcac35d729869d693ac358b865bfbe9f", kill_on_drop: false }`
[INFO] [stdout] b610f62f5ae3849854735c9e2f149d89fcac35d729869d693ac358b865bfbe9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+da897dfb6daa268a965d2d73620316ba56020a19" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 356676f10654f8cf45df7b9007ca9616a97947036d0799598c36c791f478401d
[INFO] running `Command { std: "docker" "start" "-a" "356676f10654f8cf45df7b9007ca9616a97947036d0799598c36c791f478401d", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking portmidi v0.2.4
[INFO] [stderr]     Checking itertools v0.4.19
[INFO] [stderr]     Checking rb v0.2.0
[INFO] [stderr]     Checking hound v2.0.0
[INFO] [stderr]     Checking rosc v0.1.5
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling rsoundio v0.1.6
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr] error: failed to run custom build command for `rsoundio v0.1.6`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rsoundio-7aa852b867a55e68/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rustc-link-lib=dylib=soundio
[INFO] [stderr]   cargo:rustc-link-search=native=/opt/rustwide/target/debug/build/rsoundio-89db5d1759a834d8/out/lib
[INFO] [stderr]   cargo:include=/opt/rustwide/target/debug/build/rsoundio-89db5d1759a834d8/out/include
[INFO] [stderr]   cargo:root=/opt/rustwide/target/debug/build/rsoundio-89db5d1759a834d8/out
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at '/opt/rustwide/target/debug/build/rsoundio-89db5d1759a834d8/out/libsoundio-1.1.0/build: No such file or directory (os error 2)', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rsoundio-0.1.6/build.rs:108:5
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55cf42726f70 - std::backtrace_rs::backtrace::libunwind::trace::h452faf99f32e7c93
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x55cf42726f70 - std::backtrace_rs::backtrace::trace_unsynchronized::he40edc71437667a1
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x55cf42726f70 - std::sys_common::backtrace::_print_fmt::h6c51d6ade71f46bf
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]      3:     0x55cf42726f70 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h3cd15d7003dec37a
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x55cf42745d6c - core::fmt::write::h1857a60b204f1b6a
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/core/src/fmt/mod.rs:1082
[INFO] [stderr]      5:     0x55cf42724117 - std::io::Write::write_fmt::hac61caff894c35ae
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/io/mod.rs:1517
[INFO] [stderr]      6:     0x55cf427295e0 - std::sys_common::backtrace::_print::haa2f390fb7957e3e
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x55cf427295e0 - std::sys_common::backtrace::print::h48c7cbbad9013bb1
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x55cf427295e0 - std::panicking::default_hook::{{closure}}::h8b7ff05a31e71d55
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panicking.rs:208
[INFO] [stderr]      9:     0x55cf4272932c - std::panicking::default_hook::h2f00c78800d98e4c
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panicking.rs:227
[INFO] [stderr]     10:     0x55cf42729c43 - std::panicking::rust_panic_with_hook::h4eaa635e4694aef3
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panicking.rs:577
[INFO] [stderr]     11:     0x55cf426e34ab - std::panicking::begin_panic::{{closure}}::hc6d2a68c2a4cf25e
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panicking.rs:506
[INFO] [stderr]     12:     0x55cf426e2c5e - std::sys_common::backtrace::__rust_end_short_backtrace::h86013836b7db78ca
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]     13:     0x55cf426e33a4 - std::panicking::begin_panic::hef1bec9178106882
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panicking.rs:505
[INFO] [stderr]     14:     0x55cf426e1fde - build_script_build::build::hc7c0a609cd345d53
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rsoundio-0.1.6/build.rs:108
[INFO] [stderr]     15:     0x55cf426e05ff - build_script_build::linux::hf50f55d4b99abba6
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rsoundio-0.1.6/build.rs:51
[INFO] [stderr]     16:     0x55cf426e0784 - build_script_build::main::h1b4590cd9e629aa1
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rsoundio-0.1.6/build.rs:66
[INFO] [stderr]     17:     0x55cf426e2eab - core::ops::function::FnOnce::call_once::h40f3385e84914221
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/core/src/ops/function.rs:227
[INFO] [stderr]     18:     0x55cf426e2c9e - std::sys_common::backtrace::__rust_begin_short_backtrace::h83e79564d17c34a8
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     19:     0x55cf426e40e1 - std::rt::lang_start::{{closure}}::h0f72d7aeb13bd422
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/rt.rs:66
[INFO] [stderr]     20:     0x55cf4272a041 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hecc21eb9018cc197
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/core/src/ops/function.rs:259
[INFO] [stderr]     21:     0x55cf4272a041 - std::panicking::try::do_call::h174ad655d084b5c7
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panicking.rs:381
[INFO] [stderr]     22:     0x55cf4272a041 - std::panicking::try::h479e6054ce28de10
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panicking.rs:345
[INFO] [stderr]     23:     0x55cf4272a041 - std::panic::catch_unwind::hb558ddea2b3e9c45
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/panic.rs:382
[INFO] [stderr]     24:     0x55cf4272a041 - std::rt::lang_start_internal::h163149047f0a8b61
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/rt.rs:51
[INFO] [stderr]     25:     0x55cf426e40b7 - std::rt::lang_start::h09e9b9fb4afa5ca4
[INFO] [stderr]                                  at /rustc/da897dfb6daa268a965d2d73620316ba56020a19/library/std/src/rt.rs:65
[INFO] [stderr]     26:     0x55cf426e273a - main
[INFO] [stderr]     27:     0x7f05768930b3 - __libc_start_main
[INFO] [stderr]     28:     0x55cf426e00ce - _start
[INFO] [stderr]     29:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "356676f10654f8cf45df7b9007ca9616a97947036d0799598c36c791f478401d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "356676f10654f8cf45df7b9007ca9616a97947036d0799598c36c791f478401d", kill_on_drop: false }`
[INFO] [stdout] 356676f10654f8cf45df7b9007ca9616a97947036d0799598c36c791f478401d