[INFO] updating cached repository https://github.com/Spunge/forex
[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] 7a4951edad7d506422b66ce80c032422d38e6c27
[INFO] testing Spunge/forex 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%2FSpunge%2Fforex" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Spunge/forex 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/Spunge/forex
[INFO] finished tweaking git repo https://github.com/Spunge/forex
[INFO] tweaked toml for git repo https://github.com/Spunge/forex written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Spunge/forex 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] e0436c5d27fe8657cc9048914239dc05c18a2b6fbf938440fa9c99a1588d73b4
[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" "e0436c5d27fe8657cc9048914239dc05c18a2b6fbf938440fa9c99a1588d73b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0436c5d27fe8657cc9048914239dc05c18a2b6fbf938440fa9c99a1588d73b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0436c5d27fe8657cc9048914239dc05c18a2b6fbf938440fa9c99a1588d73b4", kill_on_drop: false }`
[INFO] [stdout] e0436c5d27fe8657cc9048914239dc05c18a2b6fbf938440fa9c99a1588d73b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 610173e8eb6cb4a12cad4176681a3293f6fef75de2ecdade320ddbdb807a7526
[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" "610173e8eb6cb4a12cad4176681a3293f6fef75de2ecdade320ddbdb807a7526", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling jack-sys v0.2.0 (https://github.com/spunge/rust-jack.git#c645e0b1)
[INFO] [stderr]    Compiling jack v0.6.0-rc1 (https://github.com/spunge/rust-jack.git#c645e0b1)
[INFO] [stderr]    Compiling gilrs-core v0.2.5
[INFO] [stderr]    Compiling gilrs v0.7.4
[INFO] [stderr]    Compiling forex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:170:13
[INFO] [stdout]     |
[INFO] [stdout] 170 |             writer.write(&jack::RawMidi { time: frame, bytes: &bytes });
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[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/forex-bd310d384e90f954.forex.2jlmma8k-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.forex.2jlmma8k-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.forex.2jlmma8k-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.forex.2jlmma8k-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.forex.2jlmma8k-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.forex.2jlmma8k-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.forex.2jlmma8k-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.forex.2jlmma8k-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.forex.2jlmma8k-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.forex.2jlmma8k-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.forex.2jlmma8k-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.forex.2jlmma8k-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.forex.2jlmma8k-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.forex.2jlmma8k-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.forex.2jlmma8k-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.forex.2jlmma8k-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954" "/opt/rustwide/target/debug/deps/forex-bd310d384e90f954.4r8t33hxwevyl6nh.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/lib/x86_64-linux-gnu" "-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/libgilrs-50528c2f5f7698f0.rlib" "/opt/rustwide/target/debug/deps/libgilrs_core-f2d8005348255abc.rlib" "/opt/rustwide/target/debug/deps/liblog-e9c1f4128215cfb7.rlib" "/opt/rustwide/target/debug/deps/libuuid-2ebc604cc3f75ef3.rlib" "/opt/rustwide/target/debug/deps/libvec_map-d63055c0e609bac9.rlib" "/opt/rustwide/target/debug/deps/libnix-b3f72a6763bbbb18.rlib" "/opt/rustwide/target/debug/deps/libvoid-2b8404f9072f9abf.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-727e218cbe4629d5.rlib" "/opt/rustwide/target/debug/deps/liblibudev_sys-ec91c9210c57e475.rlib" "/opt/rustwide/target/debug/deps/libfnv-37dc92b0673ee3ab.rlib" "/opt/rustwide/target/debug/deps/libjack-1cf942bff6f4c45d.rlib" "/opt/rustwide/target/debug/deps/libjack_sys-acd93c88c2fca0d7.rlib" "/opt/rustwide/target/debug/deps/liblibloading-ff733c0351b77c9f.rlib" "/opt/rustwide/target/debug/deps/liblibc-ab6c156b9524bd45.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-03dc560a77c5aa3e.rlib" "/opt/rustwide/target/debug/deps/libbitflags-ef3b499484556621.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" "-ludev" "-ljack" "-ldl" "-lutil" "-ldl" "-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; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `forex`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "610173e8eb6cb4a12cad4176681a3293f6fef75de2ecdade320ddbdb807a7526", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "610173e8eb6cb4a12cad4176681a3293f6fef75de2ecdade320ddbdb807a7526", kill_on_drop: false }`
[INFO] [stdout] 610173e8eb6cb4a12cad4176681a3293f6fef75de2ecdade320ddbdb807a7526