[INFO] cloning repository https://github.com/cassaundra/backlight
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cassaundra/backlight" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcassaundra%2Fbacklight", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcassaundra%2Fbacklight'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 36bd9a0740ad2737fdf5554396abb750a67b3114
[INFO] testing cassaundra/backlight against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcassaundra%2Fbacklight" "/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/cassaundra/backlight on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cassaundra/backlight
[INFO] finished tweaking git repo https://github.com/cassaundra/backlight
[INFO] tweaked toml for git repo https://github.com/cassaundra/backlight written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/cassaundra/backlight already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/cassaundra/launch-rs.git`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded scrap v0.5.0
[INFO] [stderr]   Downloaded portmidi v0.2.4
[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" "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" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 708e2ee2e8cf00567036eabe5e5778b4e615a3941138d9b7003b6f3bccb3bffb
[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" "708e2ee2e8cf00567036eabe5e5778b4e615a3941138d9b7003b6f3bccb3bffb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "708e2ee2e8cf00567036eabe5e5778b4e615a3941138d9b7003b6f3bccb3bffb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "708e2ee2e8cf00567036eabe5e5778b4e615a3941138d9b7003b6f3bccb3bffb", kill_on_drop: false }`
[INFO] [stdout] 708e2ee2e8cf00567036eabe5e5778b4e615a3941138d9b7003b6f3bccb3bffb
[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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 790365370beeafd1e85235ab198862d8f066f54bd04708589b4a97e39a613b23
[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" "790365370beeafd1e85235ab198862d8f066f54bd04708589b4a97e39a613b23", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling scrap v0.5.0
[INFO] [stderr]    Compiling block v0.1.6
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling portmidi v0.2.4
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling palette_derive v0.4.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling palette v0.4.1
[INFO] [stderr]    Compiling launchpad v1.0.0 (https://github.com/cassaundra/launch-rs.git#105cf8ef)
[INFO] [stderr]    Compiling backlight v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]   --> src/main.rs:35:7
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let count = (buffer.len() / 4) as u128;
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:14:2
[INFO] [stdout]    |
[INFO] [stdout] 14 |     launchpad.light_all_raw(0);
[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] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/main.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |                 launchpad.light_single(7 - pad_x as u8, 7 - pad_y as u8, &color);
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[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-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.backlight.cdl6mz5e-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227" "/opt/rustwide/target/debug/deps/backlight-9cf05efddf1d9227.jtlm7fk70405dmk.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/liblaunchpad-2300f5d0ae153bff.rlib" "/opt/rustwide/target/debug/deps/libportmidi-00d73e2beca169d5.rlib" "/opt/rustwide/target/debug/deps/libpalette-2348f413cc2cf7aa.rlib" "/opt/rustwide/target/debug/deps/libphf-7d6cfaa7306d3398.rlib" "/opt/rustwide/target/debug/deps/libphf_shared-068b6675262c52f4.rlib" "/opt/rustwide/target/debug/deps/libsiphasher-1bc02ae021f668a4.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-59a9afba53d94711.rlib" "/opt/rustwide/target/debug/deps/libapprox-43cd5c53f5296d66.rlib" "/opt/rustwide/target/debug/deps/libscrap-23a6236399b29a41.rlib" "/opt/rustwide/target/debug/deps/liblibc-e56a0d52c58e583c.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-dc9c1f3ab4e75cf1.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-3532beb752f910d7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-3529ece450b7f3c6.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-23e8f582a6744f80.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-5e7e0793b29cbf78.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-253e0736424ceb78.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-b6fd484888124c85.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-cca4d20e4b53839c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-0a7401891c2a4f50.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-efbb25e073df787e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-25965457612624bc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-09058283ea779342.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-ab973dacc0513511.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b437d6640b1f764b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-8cc0b2380206399c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-727cdf2b6a468113.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-cf4d442d877ea2f4.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-7e5b6df427ca977c.rlib" "-Wl,-Bdynamic" "-lportmidi" "-lxcb" "-lxcb-shm" "-lxcb-randr" "-lutil" "-lutil" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -lportmidi
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `backlight`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "790365370beeafd1e85235ab198862d8f066f54bd04708589b4a97e39a613b23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "790365370beeafd1e85235ab198862d8f066f54bd04708589b4a97e39a613b23", kill_on_drop: false }`
[INFO] [stdout] 790365370beeafd1e85235ab198862d8f066f54bd04708589b4a97e39a613b23
