[INFO] fetching crate order-stat 0.1.3...
[INFO] checking order-stat-0.1.3 against try#7b3565da729099dbe807466fcd118fb2815986e0 for pr-81789
[INFO] extracting crate order-stat 0.1.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate order-stat 0.1.3 on toolchain 7b3565da729099dbe807466fcd118fb2815986e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate order-stat 0.1.3
[INFO] finished tweaking crates.io crate order-stat 0.1.3
[INFO] tweaked toml for crates.io crate order-stat 0.1.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "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] 37d5b5cdaffe8add05d54324f5ff8401af1e5b128a612f416f81f5959bb523f5
[INFO] running `Command { std: "docker" "start" "-a" "37d5b5cdaffe8add05d54324f5ff8401af1e5b128a612f416f81f5959bb523f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37d5b5cdaffe8add05d54324f5ff8401af1e5b128a612f416f81f5959bb523f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37d5b5cdaffe8add05d54324f5ff8401af1e5b128a612f416f81f5959bb523f5", kill_on_drop: false }`
[INFO] [stdout] 37d5b5cdaffe8add05d54324f5ff8401af1e5b128a612f416f81f5959bb523f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7b3565da729099dbe807466fcd118fb2815986e0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] c9ecf512024142e2e2d0030b98b93f7de3a46253bbf0573b59847d23146f1228
[INFO] running `Command { std: "docker" "start" "-a" "c9ecf512024142e2e2d0030b98b93f7de3a46253bbf0573b59847d23146f1228", kill_on_drop: false }`
[INFO] [stderr]     Checking order-stat v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stdout] warning: the item `mem` is imported redundantly
[INFO] [stdout]   --> src/mom.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::{cmp, mem};
[INFO] [stdout]    |                --- the item `mem` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 84 |     use std::mem;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking quickcheck v0.2.27
[INFO] [stdout] warning: the item `mem` is imported redundantly
[INFO] [stdout]   --> src/mom.rs:84:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | use std::{cmp, mem};
[INFO] [stdout]    |                --- the item `mem` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 84 |     use std::mem;
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.10s
[INFO] running `Command { std: "docker" "inspect" "c9ecf512024142e2e2d0030b98b93f7de3a46253bbf0573b59847d23146f1228", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9ecf512024142e2e2d0030b98b93f7de3a46253bbf0573b59847d23146f1228", kill_on_drop: false }`
[INFO] [stdout] c9ecf512024142e2e2d0030b98b93f7de3a46253bbf0573b59847d23146f1228