[INFO] cloning repository https://github.com/Diapolo10/rust-leibniz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Diapolo10/rust-leibniz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDiapolo10%2Frust-leibniz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDiapolo10%2Frust-leibniz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 285c33631b8609bbf8f26d5a2b2c04728ac9353a
[INFO] testing Diapolo10/rust-leibniz against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDiapolo10%2Frust-leibniz" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Diapolo10/rust-leibniz on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Diapolo10/rust-leibniz
[INFO] finished tweaking git repo https://github.com/Diapolo10/rust-leibniz
[INFO] tweaked toml for git repo https://github.com/Diapolo10/rust-leibniz written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Diapolo10/rust-leibniz already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71da87524e2271ad4fef37064b70c5ae8b587fb854e6f25f938aff6285d88d40
[INFO] running `Command { std: "docker" "start" "-a" "71da87524e2271ad4fef37064b70c5ae8b587fb854e6f25f938aff6285d88d40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71da87524e2271ad4fef37064b70c5ae8b587fb854e6f25f938aff6285d88d40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71da87524e2271ad4fef37064b70c5ae8b587fb854e6f25f938aff6285d88d40", kill_on_drop: false }`
[INFO] [stdout] 71da87524e2271ad4fef37064b70c5ae8b587fb854e6f25f938aff6285d88d40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df091f7bcdcf7961a90aafafde994af3c5e8193ec84bc9a299fde67b99596386
[INFO] running `Command { std: "docker" "start" "-a" "df091f7bcdcf7961a90aafafde994af3c5e8193ec84bc9a299fde67b99596386", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling crossbeam-channel v0.3.9
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling crossbeam-deque v0.7.1
[INFO] [stderr]    Compiling crossbeam v0.7.2
[INFO] [stderr]    Compiling rust-leibniz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pool`
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let pool = ThreadPool::new(cpu_count as usize);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_pool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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 2.64s
[INFO] running `Command { std: "docker" "inspect" "df091f7bcdcf7961a90aafafde994af3c5e8193ec84bc9a299fde67b99596386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df091f7bcdcf7961a90aafafde994af3c5e8193ec84bc9a299fde67b99596386", kill_on_drop: false }`
[INFO] [stdout] df091f7bcdcf7961a90aafafde994af3c5e8193ec84bc9a299fde67b99596386
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4dfce6eb2e295639f7c547ec6bc74484baa2b434771a83247cb4689468ee2a4e
[INFO] running `Command { std: "docker" "start" "-a" "4dfce6eb2e295639f7c547ec6bc74484baa2b434771a83247cb4689468ee2a4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-leibniz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `pool`
[INFO] [stdout]   --> src/main.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let pool = ThreadPool::new(cpu_count as usize);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_pool`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "4dfce6eb2e295639f7c547ec6bc74484baa2b434771a83247cb4689468ee2a4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dfce6eb2e295639f7c547ec6bc74484baa2b434771a83247cb4689468ee2a4e", kill_on_drop: false }`
[INFO] [stdout] 4dfce6eb2e295639f7c547ec6bc74484baa2b434771a83247cb4689468ee2a4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6a201f560c4f00641cb824f6ced061db8e89b68d293b112fd9567b452785d9b1
[INFO] running `Command { std: "docker" "start" "-a" "6a201f560c4f00641cb824f6ced061db8e89b68d293b112fd9567b452785d9b1", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `pool`
[INFO] [stderr]   --> src/main.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let pool = ThreadPool::new(cpu_count as usize);
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_pool`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-leibniz` (bin "rust-leibniz" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_leibniz-bf19e75d8ba9994c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6a201f560c4f00641cb824f6ced061db8e89b68d293b112fd9567b452785d9b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a201f560c4f00641cb824f6ced061db8e89b68d293b112fd9567b452785d9b1", kill_on_drop: false }`
[INFO] [stdout] 6a201f560c4f00641cb824f6ced061db8e89b68d293b112fd9567b452785d9b1