[INFO] cloning repository https://github.com/derekdreery/i3ctl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/derekdreery/i3ctl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekdreery%2Fi3ctl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekdreery%2Fi3ctl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e7fb282ea9aa63fc7b00b67d293f1be7c4a56599
[INFO] checking derekdreery/i3ctl against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fderekdreery%2Fi3ctl" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/derekdreery/i3ctl 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 git repo https://github.com/derekdreery/i3ctl
[INFO] finished tweaking git repo https://github.com/derekdreery/i3ctl
[INFO] tweaked toml for git repo https://github.com/derekdreery/i3ctl written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/derekdreery/i3ctl 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded i3ipc v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 31c199536b877c5935c8f06460c7bc9d0e142608288fb9564230d36bb9d6f612
[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" "31c199536b877c5935c8f06460c7bc9d0e142608288fb9564230d36bb9d6f612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31c199536b877c5935c8f06460c7bc9d0e142608288fb9564230d36bb9d6f612", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31c199536b877c5935c8f06460c7bc9d0e142608288fb9564230d36bb9d6f612", kill_on_drop: false }`
[INFO] [stdout] 31c199536b877c5935c8f06460c7bc9d0e142608288fb9564230d36bb9d6f612
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 2d58b98b9c4710682c7133d40f7beed127808e1912128ac3d899658c8cdbef97
[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" "2d58b98b9c4710682c7133d40f7beed127808e1912128ac3d899658c8cdbef97", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling regex v1.1.2
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]     Checking rust-ini v0.13.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking yaml-rust v0.4.3
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking nom v4.2.2
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking env_logger v0.6.1
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking serde-hjson v0.8.2
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking pretty_env_logger v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.89
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking structopt v0.2.15
[INFO] [stderr]     Checking clap-verbosity-flag v0.2.0
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking i3ipc v0.10.1
[INFO] [stderr]     Checking config v0.9.2
[INFO] [stderr]     Checking i3ctl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 02s
[INFO] running `Command { std: "docker" "inspect" "2d58b98b9c4710682c7133d40f7beed127808e1912128ac3d899658c8cdbef97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d58b98b9c4710682c7133d40f7beed127808e1912128ac3d899658c8cdbef97", kill_on_drop: false }`
[INFO] [stdout] 2d58b98b9c4710682c7133d40f7beed127808e1912128ac3d899658c8cdbef97