[INFO] fetching crate allocator-suite 0.1.7...
[INFO] checking allocator-suite-0.1.7 against try#ffa4a0215752773248fb0f0a8092f1c3e7907e9e for pr-75585
[INFO] extracting crate allocator-suite 0.1.7 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate allocator-suite 0.1.7 on toolchain ffa4a0215752773248fb0f0a8092f1c3e7907e9e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate allocator-suite 0.1.7
[INFO] finished tweaking crates.io crate allocator-suite 0.1.7
[INFO] tweaked toml for crates.io crate allocator-suite 0.1.7 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate allocator-suite 0.1.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "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] 942b187c3cba7886c3f1017655757516662f7fc04e27f4d354c443d62914f6c3
[INFO] running `Command { std: "docker" "start" "-a" "942b187c3cba7886c3f1017655757516662f7fc04e27f4d354c443d62914f6c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "942b187c3cba7886c3f1017655757516662f7fc04e27f4d354c443d62914f6c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "942b187c3cba7886c3f1017655757516662f7fc04e27f4d354c443d62914f6c3", kill_on_drop: false }`
[INFO] [stdout] 942b187c3cba7886c3f1017655757516662f7fc04e27f4d354c443d62914f6c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa4a0215752773248fb0f0a8092f1c3e7907e9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f03e07b5df5e9bbf0eb5e0c01e45769b3527fcc7ac82b5520446913b7fc24a50
[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" "f03e07b5df5e9bbf0eb5e0c01e45769b3527fcc7ac82b5520446913b7fc24a50", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking allocator-suite v0.1.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::extensions::prelude`
[INFO] [stdout]  --> src/allocators/allocator.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::extensions::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::extensions::prelude`
[INFO] [stdout]  --> src/allocators/allocator.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::extensions::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.39s
[INFO] running `Command { std: "docker" "inspect" "f03e07b5df5e9bbf0eb5e0c01e45769b3527fcc7ac82b5520446913b7fc24a50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f03e07b5df5e9bbf0eb5e0c01e45769b3527fcc7ac82b5520446913b7fc24a50", kill_on_drop: false }`
[INFO] [stdout] f03e07b5df5e9bbf0eb5e0c01e45769b3527fcc7ac82b5520446913b7fc24a50