[INFO] updating cached repository https://github.com/cassaundra/backlight
[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] 36bd9a0740ad2737fdf5554396abb750a67b3114
[INFO] testing cassaundra/backlight 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%2Fcassaundra%2Fbacklight" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cassaundra/backlight 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/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-5/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-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 2bc756aa2deda3be643b16964b0db05ec11397e72ff6b25b0e278e01608cbab7
[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" "2bc756aa2deda3be643b16964b0db05ec11397e72ff6b25b0e278e01608cbab7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bc756aa2deda3be643b16964b0db05ec11397e72ff6b25b0e278e01608cbab7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bc756aa2deda3be643b16964b0db05ec11397e72ff6b25b0e278e01608cbab7", kill_on_drop: false }`
[INFO] [stdout] 2bc756aa2deda3be643b16964b0db05ec11397e72ff6b25b0e278e01608cbab7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 952a5b0cc8ddb756b5ba201bdee4fa51dc0299017d9a5153013ccd2c4111e662
[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" "952a5b0cc8ddb756b5ba201bdee4fa51dc0299017d9a5153013ccd2c4111e662", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.5
[INFO] [stderr]    Compiling scrap v0.5.0
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling block v0.1.6
[INFO] [stderr]    Compiling portmidi v0.2.4
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[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 palette_derive 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-2020-07-24-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-2020-07-24-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-2020-07-24-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" "-lportmidi" "-lxcb" "-lxcb-shm" "-lxcb-randr" "-lutil" "-lutil" "-ldl" "-lrt" "-lpthread" "-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" "952a5b0cc8ddb756b5ba201bdee4fa51dc0299017d9a5153013ccd2c4111e662", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "952a5b0cc8ddb756b5ba201bdee4fa51dc0299017d9a5153013ccd2c4111e662", kill_on_drop: false }`
[INFO] [stdout] 952a5b0cc8ddb756b5ba201bdee4fa51dc0299017d9a5153013ccd2c4111e662