[INFO] fetching crate i3-focus-last 0.4.0...
[INFO] checking i3-focus-last-0.4.0 against try#353a0a223066e9f46a1d935f2271a26c3c5002bb for pr-75180
[INFO] extracting crate i3-focus-last 0.4.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate i3-focus-last 0.4.0 on toolchain 353a0a223066e9f46a1d935f2271a26c3c5002bb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate i3-focus-last 0.4.0
[INFO] finished tweaking crates.io crate i3-focus-last 0.4.0
[INFO] tweaked toml for crates.io crate i3-focus-last 0.4.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate i3-focus-last 0.4.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded gumdrop v0.8.0
[INFO] [stderr]   Downloaded gumdrop_derive v0.8.0
[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" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 092765320d9f7ad5a2e3938c57c97aec6493624a8fbb678614d4ed78cfd46587
[INFO] running `Command { std: "docker" "start" "-a" "092765320d9f7ad5a2e3938c57c97aec6493624a8fbb678614d4ed78cfd46587", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "092765320d9f7ad5a2e3938c57c97aec6493624a8fbb678614d4ed78cfd46587", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "092765320d9f7ad5a2e3938c57c97aec6493624a8fbb678614d4ed78cfd46587", kill_on_drop: false }`
[INFO] [stdout] 092765320d9f7ad5a2e3938c57c97aec6493624a8fbb678614d4ed78cfd46587
[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" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+353a0a223066e9f46a1d935f2271a26c3c5002bb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e653a8bc0da5123837061fd1733d627a254767194e94f5a2f6cb0cb62e26f6f
[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" "0e653a8bc0da5123837061fd1733d627a254767194e94f5a2f6cb0cb62e26f6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.112
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling gumdrop_derive v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.112
[INFO] [stderr]     Checking gumdrop v0.8.0
[INFO] [stderr]     Checking i3ipc v0.10.1
[INFO] [stderr]     Checking i3-focus-last v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.08s
[INFO] running `Command { std: "docker" "inspect" "0e653a8bc0da5123837061fd1733d627a254767194e94f5a2f6cb0cb62e26f6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e653a8bc0da5123837061fd1733d627a254767194e94f5a2f6cb0cb62e26f6f", kill_on_drop: false }`
[INFO] [stdout] 0e653a8bc0da5123837061fd1733d627a254767194e94f5a2f6cb0cb62e26f6f