[INFO] fetching crate allocator-suite 0.1.6...
[INFO] checking allocator-suite-0.1.6 against try#85cc1486e1f000dce4bb8e1b3cfab2b654b102a8 for pr-73323
[INFO] extracting crate allocator-suite 0.1.6 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate allocator-suite 0.1.6 on toolchain 85cc1486e1f000dce4bb8e1b3cfab2b654b102a8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "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-3/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" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5c926cf63719b7ad8911800e058d8b8e66f7b7a62e82d62530a30ef0babe88c4
[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" "5c926cf63719b7ad8911800e058d8b8e66f7b7a62e82d62530a30ef0babe88c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5c926cf63719b7ad8911800e058d8b8e66f7b7a62e82d62530a30ef0babe88c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c926cf63719b7ad8911800e058d8b8e66f7b7a62e82d62530a30ef0babe88c4", kill_on_drop: false }`
[INFO] [stdout] 5c926cf63719b7ad8911800e058d8b8e66f7b7a62e82d62530a30ef0babe88c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+85cc1486e1f000dce4bb8e1b3cfab2b654b102a8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4dc0e7cff54b74c9540e27ec9fabbc174c8209554319c8d8329c73d25aeeefd1
[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" "4dc0e7cff54b74c9540e27ec9fabbc174c8209554319c8d8329c73d25aeeefd1", 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 4.44s
[INFO] running `Command { std: "docker" "inspect" "4dc0e7cff54b74c9540e27ec9fabbc174c8209554319c8d8329c73d25aeeefd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dc0e7cff54b74c9540e27ec9fabbc174c8209554319c8d8329c73d25aeeefd1", kill_on_drop: false }`
[INFO] [stdout] 4dc0e7cff54b74c9540e27ec9fabbc174c8209554319c8d8329c73d25aeeefd1