[INFO] cloning repository https://github.com/spaghetus/anagrammatic-pairs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/spaghetus/anagrammatic-pairs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspaghetus%2Fanagrammatic-pairs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspaghetus%2Fanagrammatic-pairs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c2286395fbe2a4f0b6ec312bc2e53d7135f05eb
[INFO] testing spaghetus/anagrammatic-pairs against beta-2022-02-22 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fspaghetus%2Fanagrammatic-pairs" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/spaghetus/anagrammatic-pairs on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/spaghetus/anagrammatic-pairs
[INFO] finished tweaking git repo https://github.com/spaghetus/anagrammatic-pairs
[INFO] tweaked toml for git repo https://github.com/spaghetus/anagrammatic-pairs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/spaghetus/anagrammatic-pairs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctrlc v3.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 98038d337534c823395bdfc2b960b90fd0c433aeb2fc0266fb80abc80409253a
[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" "98038d337534c823395bdfc2b960b90fd0c433aeb2fc0266fb80abc80409253a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "98038d337534c823395bdfc2b960b90fd0c433aeb2fc0266fb80abc80409253a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98038d337534c823395bdfc2b960b90fd0c433aeb2fc0266fb80abc80409253a", kill_on_drop: false }`
[INFO] [stdout] 98038d337534c823395bdfc2b960b90fd0c433aeb2fc0266fb80abc80409253a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85e5cefd6e50067c9a388bfc12dbfc2431eeb4305aab3a6a42506b6c8e50bd17
[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" "85e5cefd6e50067c9a388bfc12dbfc2431eeb4305aab3a6a42506b6c8e50bd17", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.83
[INFO] [stderr]    Compiling serde v1.0.132
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling nix v0.23.1
[INFO] [stderr]    Compiling console v0.15.0
[INFO] [stderr]    Compiling indicatif v0.16.2
[INFO] [stderr]    Compiling serde_derive v1.0.132
[INFO] [stderr]    Compiling ctrlc v3.2.1
[INFO] [stderr]    Compiling serde_json v1.0.73
[INFO] [stderr]    Compiling anagrammatic-pairs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]   --> src/main.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 if let Some(count) = count {
[INFO] [stdout]    |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/main.rs:75:14
[INFO] [stdout]    |
[INFO] [stdout] 75 |             .filter(|(k, v)| v.len() >= MEMBERS_EACH_PAIR)
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `finish`
[INFO] [stdout]   --> src/main.rs:69:7
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let finish = finish.store(true, Ordering::SeqCst);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_finish`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 45.66s
[INFO] running `Command { std: "docker" "inspect" "85e5cefd6e50067c9a388bfc12dbfc2431eeb4305aab3a6a42506b6c8e50bd17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85e5cefd6e50067c9a388bfc12dbfc2431eeb4305aab3a6a42506b6c8e50bd17", kill_on_drop: false }`
[INFO] [stdout] 85e5cefd6e50067c9a388bfc12dbfc2431eeb4305aab3a6a42506b6c8e50bd17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23bf8ce0f7f9445d33731e377827c83c9ecc84e5938b0108fd6fdb606cb60883
[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" "23bf8ce0f7f9445d33731e377827c83c9ecc84e5938b0108fd6fdb606cb60883", kill_on_drop: false }`
[INFO] [stderr]    Compiling anagrammatic-pairs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `count`
[INFO] [stdout]   --> src/main.rs:51:17
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 if let Some(count) = count {
[INFO] [stdout]    |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]   --> src/main.rs:75:14
[INFO] [stdout]    |
[INFO] [stdout] 75 |             .filter(|(k, v)| v.len() >= MEMBERS_EACH_PAIR)
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `finish`
[INFO] [stdout]   --> src/main.rs:69:7
[INFO] [stdout]    |
[INFO] [stdout] 69 |         let finish = finish.store(true, Ordering::SeqCst);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_finish`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "23bf8ce0f7f9445d33731e377827c83c9ecc84e5938b0108fd6fdb606cb60883", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23bf8ce0f7f9445d33731e377827c83c9ecc84e5938b0108fd6fdb606cb60883", kill_on_drop: false }`
[INFO] [stdout] 23bf8ce0f7f9445d33731e377827c83c9ecc84e5938b0108fd6fdb606cb60883
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 3b05d7542f56d038471ac711fc8498fbe8bbf677c3e690835fbb58b9f88f1111
[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" "3b05d7542f56d038471ac711fc8498fbe8bbf677c3e690835fbb58b9f88f1111", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `count`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:51:17
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 51 |                 if let Some(count) = count {
[INFO] [stdout] 
[INFO] [stderr]    |                             ^^^^^ help: if this is intentional, prefix it with an underscore: `_count`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k`
[INFO] [stderr]   --> src/main.rs:75:14
[INFO] [stderr]    |
[INFO] [stderr] 75 |             .filter(|(k, v)| v.len() >= MEMBERS_EACH_PAIR)
[INFO] [stderr]    |                       ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `finish`
[INFO] [stderr]   --> src/main.rs:69:7
[INFO] [stderr]    |
[INFO] [stderr] 69 |         let finish = finish.store(true, Ordering::SeqCst);
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_finish`
[INFO] [stderr] 
[INFO] [stderr] warning: `anagrammatic-pairs` (bin "anagrammatic-pairs" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/anagrammatic_pairs-39f55d69d551c80a)
[INFO] running `Command { std: "docker" "inspect" "3b05d7542f56d038471ac711fc8498fbe8bbf677c3e690835fbb58b9f88f1111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b05d7542f56d038471ac711fc8498fbe8bbf677c3e690835fbb58b9f88f1111", kill_on_drop: false }`
[INFO] [stdout] 3b05d7542f56d038471ac711fc8498fbe8bbf677c3e690835fbb58b9f88f1111