[INFO] cloning repository https://github.com/VikingPingvin/Rust_Synth
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/VikingPingvin/Rust_Synth" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVikingPingvin%2FRust_Synth", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVikingPingvin%2FRust_Synth'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eeff2ad0dc3376fbe22444f144c18ee9d91c4000
[INFO] checking VikingPingvin/Rust_Synth against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVikingPingvin%2FRust_Synth" "/workspace/builds/worker-12/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VikingPingvin/Rust_Synth on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/VikingPingvin/Rust_Synth
[INFO] finished tweaking git repo https://github.com/VikingPingvin/Rust_Synth
[INFO] tweaked toml for git repo https://github.com/VikingPingvin/Rust_Synth written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/VikingPingvin/Rust_Synth already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded alsa-sys v0.1.1
[INFO] [stderr]   Downloaded redox_syscall v0.1.17
[INFO] [stderr]   Downloaded coreaudio-sys v0.1.2
[INFO] [stderr]   Downloaded coreaudio-rs v0.6.0
[INFO] [stderr]   Downloaded cpal v0.4.5
[INFO] [stderr]   Downloaded futures v0.1.13
[INFO] [stderr]   Downloaded libc v0.2.22
[INFO] [stderr]   Downloaded ole32-sys v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83f31be3709561c5933a7cb3a05759ca6b12d515ab7741fb2673045f5f38212e
[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" "83f31be3709561c5933a7cb3a05759ca6b12d515ab7741fb2673045f5f38212e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83f31be3709561c5933a7cb3a05759ca6b12d515ab7741fb2673045f5f38212e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83f31be3709561c5933a7cb3a05759ca6b12d515ab7741fb2673045f5f38212e", kill_on_drop: false }`
[INFO] [stdout] 83f31be3709561c5933a7cb3a05759ca6b12d515ab7741fb2673045f5f38212e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1af16db0287e627754732d068817866e808fef6eb127186de27a847fc31adf61
[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" "1af16db0287e627754732d068817866e808fef6eb127186de27a847fc31adf61", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking libc v0.2.22
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking futures v0.1.13
[INFO] [stderr]     Checking synth v0.1.0 (/opt/rustwide/workdir/dependencies/synth)
[INFO] [stderr]     Checking notesender v0.1.0 (/opt/rustwide/workdir/dependencies/notesender)
[INFO] [stderr]    Compiling alsa-sys v0.1.1
[INFO] [stderr]     Checking time v0.1.37
[INFO] [stderr]     Checking cpal v0.4.5
[INFO] [stderr]     Checking synth_exec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.63s
[INFO] running `Command { std: "docker" "inspect" "1af16db0287e627754732d068817866e808fef6eb127186de27a847fc31adf61", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1af16db0287e627754732d068817866e808fef6eb127186de27a847fc31adf61", kill_on_drop: false }`
[INFO] [stdout] 1af16db0287e627754732d068817866e808fef6eb127186de27a847fc31adf61