[INFO] fetching crate simple_stats 0.1.1...
[INFO] checking simple_stats-0.1.1 against beta for pr-78714
[INFO] extracting crate simple_stats 0.1.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate simple_stats 0.1.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simple_stats 0.1.1
[INFO] finished tweaking crates.io crate simple_stats 0.1.1
[INFO] tweaked toml for crates.io crate simple_stats 0.1.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c96af8688e0f741ddf4ff74377309cb6c324741dc4518977216e2e6712192ac
[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" "6c96af8688e0f741ddf4ff74377309cb6c324741dc4518977216e2e6712192ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c96af8688e0f741ddf4ff74377309cb6c324741dc4518977216e2e6712192ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c96af8688e0f741ddf4ff74377309cb6c324741dc4518977216e2e6712192ac", kill_on_drop: false }`
[INFO] [stdout] 6c96af8688e0f741ddf4ff74377309cb6c324741dc4518977216e2e6712192ac
[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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff6535ae5db9b574cd7fac050366bf850889700f002adcb84bc6cfe0eddf1c54
[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" "ff6535ae5db9b574cd7fac050366bf850889700f002adcb84bc6cfe0eddf1c54", kill_on_drop: false }`
[INFO] [stderr]     Checking simple_stats v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `One`
[INFO] [stdout]   --> src/univariate_.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 |           One,
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Zero`
[INFO] [stdout]   --> src/univariate_.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 |           Zero};
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `One`
[INFO] [stdout]   --> src/stats_.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 |           One,
[INFO] [stdout]    |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Zero`
[INFO] [stdout]   --> src/stats_.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 |           Zero};
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `One`
[INFO] [stdout]   --> src/univariate_.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 |           One,
[INFO] [stdout]    |           ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Zero`
[INFO] [stdout]   --> src/univariate_.rs:27:11
[INFO] [stdout]    |
[INFO] [stdout] 27 |           Zero};
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `One`
[INFO] [stdout]   --> src/stats_.rs:24:11
[INFO] [stdout]    |
[INFO] [stdout] 24 |           One,
[INFO] [stdout]    |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Zero`
[INFO] [stdout]   --> src/stats_.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 |           Zero};
[INFO] [stdout]    |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "ff6535ae5db9b574cd7fac050366bf850889700f002adcb84bc6cfe0eddf1c54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff6535ae5db9b574cd7fac050366bf850889700f002adcb84bc6cfe0eddf1c54", kill_on_drop: false }`
[INFO] [stdout] ff6535ae5db9b574cd7fac050366bf850889700f002adcb84bc6cfe0eddf1c54