[INFO] fetching crate slash 0.1.1...
[INFO] checking slash-0.1.1 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] extracting crate slash 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate slash 0.1.1 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate slash 0.1.1
[INFO] finished tweaking crates.io crate slash 0.1.1
[INFO] tweaked toml for crates.io crate slash 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate slash 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e66ed72971dd9ce3b681fe8586ed3dce6e686df8b1e728e0f8fe625b2a8ee1e
[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" "1e66ed72971dd9ce3b681fe8586ed3dce6e686df8b1e728e0f8fe625b2a8ee1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e66ed72971dd9ce3b681fe8586ed3dce6e686df8b1e728e0f8fe625b2a8ee1e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e66ed72971dd9ce3b681fe8586ed3dce6e686df8b1e728e0f8fe625b2a8ee1e", kill_on_drop: false }`
[INFO] [stdout] 1e66ed72971dd9ce3b681fe8586ed3dce6e686df8b1e728e0f8fe625b2a8ee1e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b147fdf10e421d96197fa71be1f003ca3c74cc80a868c14bf2a1b0f76770f6e1
[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" "b147fdf10e421d96197fa71be1f003ca3c74cc80a868c14bf2a1b0f76770f6e1", kill_on_drop: false }`
[INFO] [stderr]     Checking slash v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "b147fdf10e421d96197fa71be1f003ca3c74cc80a868c14bf2a1b0f76770f6e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b147fdf10e421d96197fa71be1f003ca3c74cc80a868c14bf2a1b0f76770f6e1", kill_on_drop: false }`
[INFO] [stdout] b147fdf10e421d96197fa71be1f003ca3c74cc80a868c14bf2a1b0f76770f6e1