[INFO] fetching crate midi-control 0.2.0...
[INFO] checking midi-control-0.2.0 against beta for pr-78714
[INFO] extracting crate midi-control 0.2.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate midi-control 0.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate midi-control 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate midi-control 0.2.0
[INFO] tweaked toml for crates.io crate midi-control 0.2.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate midi-control 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de349c73db1dc71c4f14fa9d79dd9b8948c0e18033d566735620bddcd746aee3
[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" "de349c73db1dc71c4f14fa9d79dd9b8948c0e18033d566735620bddcd746aee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de349c73db1dc71c4f14fa9d79dd9b8948c0e18033d566735620bddcd746aee3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de349c73db1dc71c4f14fa9d79dd9b8948c0e18033d566735620bddcd746aee3", kill_on_drop: false }`
[INFO] [stdout] de349c73db1dc71c4f14fa9d79dd9b8948c0e18033d566735620bddcd746aee3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] deb7ef32d232ddab22a0c0b0fc8f3d72d26bcee4bbfd4d77052dd0843097551c
[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" "deb7ef32d232ddab22a0c0b0fc8f3d72d26bcee4bbfd4d77052dd0843097551c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]     Checking memalloc v0.1.0
[INFO] [stderr]    Compiling alsa-sys v0.3.0
[INFO] [stderr]     Checking nix v0.15.0
[INFO] [stderr]     Checking alsa v0.4.2
[INFO] [stderr]     Checking midir v0.7.0
[INFO] [stderr]     Checking midi-control v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.17s
[INFO] running `Command { std: "docker" "inspect" "deb7ef32d232ddab22a0c0b0fc8f3d72d26bcee4bbfd4d77052dd0843097551c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deb7ef32d232ddab22a0c0b0fc8f3d72d26bcee4bbfd4d77052dd0843097551c", kill_on_drop: false }`
[INFO] [stdout] deb7ef32d232ddab22a0c0b0fc8f3d72d26bcee4bbfd4d77052dd0843097551c