[INFO] fetching crate allocator-suite 0.1.6...
[INFO] checking allocator-suite-0.1.6 against try#d990716b6a1fdde1300748828a9c9e79dfd0b898 for pr-74846
[INFO] extracting crate allocator-suite 0.1.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate allocator-suite 0.1.6 on toolchain d990716b6a1fdde1300748828a9c9e79dfd0b898
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate allocator-suite 0.1.6
[INFO] finished tweaking crates.io crate allocator-suite 0.1.6
[INFO] tweaked toml for crates.io crate allocator-suite 0.1.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate allocator-suite 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 59c078de56cc695b927801a58f651c4f3c8b95bbbbd19a5b85b53eb868d2b944
[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" "59c078de56cc695b927801a58f651c4f3c8b95bbbbd19a5b85b53eb868d2b944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "59c078de56cc695b927801a58f651c4f3c8b95bbbbd19a5b85b53eb868d2b944", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59c078de56cc695b927801a58f651c4f3c8b95bbbbd19a5b85b53eb868d2b944", kill_on_drop: false }`
[INFO] [stdout] 59c078de56cc695b927801a58f651c4f3c8b95bbbbd19a5b85b53eb868d2b944
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+d990716b6a1fdde1300748828a9c9e79dfd0b898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d3d3215be266d08877f52c3cf557dd5cf9ae268da6ea67b16c28acd8a727f9b3
[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" "d3d3215be266d08877f52c3cf557dd5cf9ae268da6ea67b16c28acd8a727f9b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking allocator-suite v0.1.6 (/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 5.51s
[INFO] running `Command { std: "docker" "inspect" "d3d3215be266d08877f52c3cf557dd5cf9ae268da6ea67b16c28acd8a727f9b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3d3215be266d08877f52c3cf557dd5cf9ae268da6ea67b16c28acd8a727f9b3", kill_on_drop: false }`
[INFO] [stdout] d3d3215be266d08877f52c3cf557dd5cf9ae268da6ea67b16c28acd8a727f9b3