[INFO] updating cached repository https://github.com/johnsnewby/jack-fft-experiments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 821022159e14c636fbe50ca14f4f79fbbb7042dc
[INFO] testing johnsnewby/jack-fft-experiments against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnsnewby%2Fjack-fft-experiments" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johnsnewby/jack-fft-experiments on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johnsnewby/jack-fft-experiments
[INFO] finished tweaking git repo https://github.com/johnsnewby/jack-fft-experiments
[INFO] tweaked toml for git repo https://github.com/johnsnewby/jack-fft-experiments written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/johnsnewby/jack-fft-experiments already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39d0449574d58880c4b6c2ac3a293ed7321f68c66559a11cceb9df10e424b9da
[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" "39d0449574d58880c4b6c2ac3a293ed7321f68c66559a11cceb9df10e424b9da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39d0449574d58880c4b6c2ac3a293ed7321f68c66559a11cceb9df10e424b9da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39d0449574d58880c4b6c2ac3a293ed7321f68c66559a11cceb9df10e424b9da", kill_on_drop: false }`
[INFO] [stdout] 39d0449574d58880c4b6c2ac3a293ed7321f68c66559a11cceb9df10e424b9da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3d7afa5ff625d2ea2582415a941ea2f54fab1a9d1100e038c9947b099c66d24
[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" "f3d7afa5ff625d2ea2582415a941ea2f54fab1a9d1100e038c9947b099c66d24", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling strength_reduce v0.2.3
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling transpose v0.1.0
[INFO] [stderr]    Compiling sample v0.10.0
[INFO] [stderr]    Compiling apodize v1.0.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]    Compiling cpal v0.10.0
[INFO] [stderr]    Compiling linreg v0.1.3
[INFO] [stderr]    Compiling crossbeam-channel v0.4.0
[INFO] [stderr]    Compiling aho-corasick v0.7.7
[INFO] [stderr]    Compiling lewton v0.9.4
[INFO] [stderr]    Compiling serde_urlencoded v0.6.1
[INFO] [stderr]    Compiling serde_json v1.0.45
[INFO] [stderr]    Compiling rustfft v3.0.1
[INFO] [stderr]    Compiling crossbeam v0.7.3
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling num_cpus v1.12.0
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling parking_lot_core v0.7.0
[INFO] [stderr]    Compiling time v0.1.42
[INFO] [stderr]    Compiling hostname v0.1.5
[INFO] [stderr]    Compiling socket2 v0.3.11
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]    Compiling slice-deque v0.2.4
[INFO] [stderr]    Compiling jack-sys v0.2.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling backtrace v0.3.43
[INFO] [stderr]    Compiling resolv-conf v0.6.2
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling parking_lot v0.10.0
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling jack v0.6.2
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling basic_dsp_vector v0.8.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling minimp3 v0.3.3
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling mio-uds v0.6.7
[INFO] [stderr]    Compiling tokio v0.2.11
[INFO] [stderr]    Compiling basic_dsp_matrix v0.8.0
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling actix-codec v0.2.0
[INFO] [stderr]    Compiling basic_dsp v0.8.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]    Compiling derive_more v0.99.2
[INFO] [stderr]    Compiling enum-as-inner v0.3.0
[INFO] [stderr]    Compiling actix-macros v0.1.1
[INFO] [stderr]    Compiling async-trait v0.1.22
[INFO] [stderr]    Compiling actix_derive v0.5.0
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling futures-macro v0.3.1
[INFO] [stderr]    Compiling rodio v0.10.0
[INFO] [stderr]    Compiling pin-project v0.4.8
[INFO] [stderr]    Compiling futures-util v0.3.1
[INFO] [stderr]    Compiling actix-threadpool v0.3.1
[INFO] [stderr]    Compiling futures-executor v0.3.1
[INFO] [stderr]    Compiling actix-service v1.0.5
[INFO] [stderr]    Compiling h2 v0.2.1
[INFO] [stderr]    Compiling futures v0.3.1
[INFO] [stderr]    Compiling trust-dns-proto v0.18.0-alpha.2
[INFO] [stderr]    Compiling actix-rt v1.0.0
[INFO] [stderr]    Compiling actix-utils v1.0.6
[INFO] [stderr]    Compiling trust-dns-resolver v0.18.0-alpha.2
[INFO] [stderr]    Compiling actix-connect v1.0.2
[INFO] [stderr]    Compiling actix-http v1.0.1
[INFO] [stderr]    Compiling actix v0.9.0
[INFO] [stderr]    Compiling experiment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `App`, `Arg`
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | use clap::{App, Arg};
[INFO] [stdout]   |            ^^^  ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `hound`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use hound;
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::Itertools`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use itertools::Itertools;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:101:21
[INFO] [stdout]     |
[INFO] [stdout] 101 |                 let mut new_signal = signal
[INFO] [stdout]     |                     ----^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Done`
[INFO] [stdout]  --> src/sample.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     Done,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.experiment.9w5qlbo4-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18" "/opt/rustwide/target/debug/deps/experiment-0680fa7a8d906e18.3vblobmy73vpg24f.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/backtrace-sys-9966d64ec320d7a0/out" "-L" "/usr/lib/x86_64-linux-gnu" "-L" "/opt/rustwide/target/debug/build/minimp3-sys-07957a5e878b8029/out" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libjack-907307e849cb1216.rlib" "/opt/rustwide/target/debug/deps/libjack_sys-5e1060d96e611c84.rlib" "/opt/rustwide/target/debug/deps/liblibloading-ff733c0351b77c9f.rlib" "/opt/rustwide/target/debug/deps/libbasic_dsp-4e551c11aa9583d2.rlib" "/opt/rustwide/target/debug/deps/libbasic_dsp_matrix-fdba029ee2a883cf.rlib" "/opt/rustwide/target/debug/deps/libbasic_dsp_vector-1d82c49af76ba991.rlib" "/opt/rustwide/target/debug/deps/libtime-e6a8451cf80b925c.rlib" "/opt/rustwide/target/debug/deps/librustfft-c4183fbd749947f4.rlib" "/opt/rustwide/target/debug/deps/libtranspose-1819eb125b22d4bc.rlib" "/opt/rustwide/target/debug/deps/libstrength_reduce-80bd9d8b67f3bcb6.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-c62ac7d108840345.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-8f952ebdd788aab0.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-76b04bb1cea4c469.rlib" "/opt/rustwide/target/debug/deps/liblinreg-213a6097b57507a7.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-efd25432eb2733aa.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam-cc493598cbf8e818.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_queue-fee7e94f71a992c9.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_deque-3cfd00735077392b.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_epoch-95fab826e179a0e3.rlib" "/opt/rustwide/target/debug/deps/libscopeguard-5d7f87962d1afbbe.rlib" "/opt/rustwide/target/debug/deps/libmemoffset-605d3a5637bb7283.rlib" "/opt/rustwide/target/debug/deps/libarrayvec-29c23aac65b32c32.rlib" "/opt/rustwide/target/debug/deps/librodio-fa0eeeb590553801.rlib" "/opt/rustwide/target/debug/deps/libminimp3-e2efa4ee8f380f47.rlib" "/opt/rustwide/target/debug/deps/libslice_deque-ae306f4423bf4c5f.rlib" "/opt/rustwide/target/debug/deps/libminimp3_sys-ae857559d1b54146.rlib" "/opt/rustwide/target/debug/deps/liblewton-4117e9ce2b762f61.rlib" "/opt/rustwide/target/debug/deps/libogg-9c3991372bade6f9.rlib" "/opt/rustwide/target/debug/deps/libsmallvec-22ab482a22e30e72.rlib" "/opt/rustwide/target/debug/deps/libmaybe_uninit-5af35797bdba708c.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-920ed6a70714d423.rlib" "/opt/rustwide/target/debug/deps/libcpal-b14c00d791ca61a3.rlib" "/opt/rustwide/target/debug/deps/libalsa_sys-f9f28b053f289954.rlib" "/opt/rustwide/target/debug/deps/libfailure-2939d940fccbb555.rlib" "/opt/rustwide/target/debug/deps/libbacktrace-4c463e07e9951064.rlib" "/opt/rustwide/target/debug/deps/libbacktrace_sys-cb94ad4742344dbf.rlib" "/opt/rustwide/target/debug/deps/librustc_demangle-becdbf8f7e05c013.rlib" "/opt/rustwide/target/debug/deps/libclaxon-1ae4c4d27e2335ae.rlib" "/opt/rustwide/target/debug/deps/libitertools-3cf085ae8f8fd56e.rlib" "/opt/rustwide/target/debug/deps/libeither-56bcfa1bc0d47530.rlib" "/opt/rustwide/target/debug/deps/libhound-0757fd0cd7430ba3.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_channel-efe953e3b0381bc0.rlib" "/opt/rustwide/target/debug/deps/libcrossbeam_utils-086433334e2dbd2c.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-03dc560a77c5aa3e.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-727e218cbe4629d5.rlib" "/opt/rustwide/target/debug/deps/libclap-f9ef6fa8e0cf91b9.rlib" "/opt/rustwide/target/debug/deps/libvec_map-d63055c0e609bac9.rlib" "/opt/rustwide/target/debug/deps/libtextwrap-8dff3a9ae4393e1f.rlib" "/opt/rustwide/target/debug/deps/libunicode_width-5e2d22d876255701.rlib" "/opt/rustwide/target/debug/deps/libstrsim-22d7efa33182e3c6.rlib" "/opt/rustwide/target/debug/deps/libbitflags-ef3b499484556621.rlib" "/opt/rustwide/target/debug/deps/libatty-5c7a7a5d0b19aff1.rlib" "/opt/rustwide/target/debug/deps/liblibc-6f1fd95a0a163c58.rlib" "/opt/rustwide/target/debug/deps/libansi_term-fe7bdec5ded10333.rlib" "/opt/rustwide/target/debug/deps/libsample-08bfd13dea63728e.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-d66e0ceb8eaec9b8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-9717ec0599b569a0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-04369de9ba916647.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-997d622c2e4dbe5c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-0359c4288a5ef89f.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-1b25ede22d698ab3.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-37940b486a68e488.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-06b77c27e794c7c6.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-4d07e02a8df36da1.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-fb29e0695c0a0f79.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-e16188b4cf97e8bb.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-5eb391c8dabdee77.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-b0689b528b222bee.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-07-24-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-ed072ac495e62e7a.rlib" "-Wl,-Bdynamic" "-ljack" "-ldl" "-lasound" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -ljack
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `experiment`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "f3d7afa5ff625d2ea2582415a941ea2f54fab1a9d1100e038c9947b099c66d24", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3d7afa5ff625d2ea2582415a941ea2f54fab1a9d1100e038c9947b099c66d24", kill_on_drop: false }`
[INFO] [stdout] f3d7afa5ff625d2ea2582415a941ea2f54fab1a9d1100e038c9947b099c66d24