[INFO] fetching crate poolter 0.1.0...
[INFO] checking poolter-0.1.0 against try#8b72f65b805cbe4c261de45030d663f524f27376 for pr-78991
[INFO] extracting crate poolter 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate poolter 0.1.0 on toolchain 8b72f65b805cbe4c261de45030d663f524f27376
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate poolter 0.1.0
[INFO] finished tweaking crates.io crate poolter 0.1.0
[INFO] tweaked toml for crates.io crate poolter 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79f89bba676ee1c1de4935efe735b9c056365ffc608728152f94383010fae193
[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" "79f89bba676ee1c1de4935efe735b9c056365ffc608728152f94383010fae193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79f89bba676ee1c1de4935efe735b9c056365ffc608728152f94383010fae193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79f89bba676ee1c1de4935efe735b9c056365ffc608728152f94383010fae193", kill_on_drop: false }`
[INFO] [stdout] 79f89bba676ee1c1de4935efe735b9c056365ffc608728152f94383010fae193
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+8b72f65b805cbe4c261de45030d663f524f27376" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 673eefc8775f57bd8737b45280c3fff026bf92de5c8fa3c283fe68e575f6e610
[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" "673eefc8775f57bd8737b45280c3fff026bf92de5c8fa3c283fe68e575f6e610", kill_on_drop: false }`
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking poolter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/service.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type Callback = Box<Fn() + Send>;
[INFO] [stdout]   |                         ^^^^^^^^^^^ help: use `dyn`: `dyn Fn() + Send`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/service.rs:4:25
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub type Callback = Box<Fn() + Send>;
[INFO] [stdout]   |                         ^^^^^^^^^^^ help: use `dyn`: `dyn Fn() + Send`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "673eefc8775f57bd8737b45280c3fff026bf92de5c8fa3c283fe68e575f6e610", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "673eefc8775f57bd8737b45280c3fff026bf92de5c8fa3c283fe68e575f6e610", kill_on_drop: false }`
[INFO] [stdout] 673eefc8775f57bd8737b45280c3fff026bf92de5c8fa3c283fe68e575f6e610