[INFO] cloning repository https://github.com/WerFra/countingsort
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WerFra/countingsort" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWerFra%2Fcountingsort", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWerFra%2Fcountingsort'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a7464905e8bbdb107665e6fcd6a31caf4a14828c
[INFO] testing WerFra/countingsort 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%2FWerFra%2Fcountingsort" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/WerFra/countingsort 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/WerFra/countingsort
[INFO] finished tweaking git repo https://github.com/WerFra/countingsort
[INFO] tweaked toml for git repo https://github.com/WerFra/countingsort written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/WerFra/countingsort 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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] e2b570ca2df916275ce6819fdabae68395295ac5994aac9f5144770d3ce81acc
[INFO] running `Command { std: "docker" "start" "-a" "e2b570ca2df916275ce6819fdabae68395295ac5994aac9f5144770d3ce81acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2b570ca2df916275ce6819fdabae68395295ac5994aac9f5144770d3ce81acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2b570ca2df916275ce6819fdabae68395295ac5994aac9f5144770d3ce81acc", kill_on_drop: false }`
[INFO] [stdout] e2b570ca2df916275ce6819fdabae68395295ac5994aac9f5144770d3ce81acc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 21342a2f95d415511cce29005a411ca591fb18cdac22de2aba928c9cfbfacc95
[INFO] running `Command { std: "docker" "start" "-a" "21342a2f95d415511cce29005a411ca591fb18cdac22de2aba928c9cfbfacc95", kill_on_drop: false }`
[INFO] [stderr]    Compiling counting_sort v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let result = counting_sort(&words, |word| word.len(), 20);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[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 1.71s
[INFO] running `Command { std: "docker" "inspect" "21342a2f95d415511cce29005a411ca591fb18cdac22de2aba928c9cfbfacc95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21342a2f95d415511cce29005a411ca591fb18cdac22de2aba928c9cfbfacc95", kill_on_drop: false }`
[INFO] [stdout] 21342a2f95d415511cce29005a411ca591fb18cdac22de2aba928c9cfbfacc95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 6936ed54344f17af1eb43587bfdc38df58080adee60cd7f80ed15abd4fbbed6e
[INFO] running `Command { std: "docker" "start" "-a" "6936ed54344f17af1eb43587bfdc38df58080adee60cd7f80ed15abd4fbbed6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling counting_sort v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `result`
[INFO] [stdout]   --> src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let result = counting_sort(&words, |word| word.len(), 20);
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.65s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6936ed54344f17af1eb43587bfdc38df58080adee60cd7f80ed15abd4fbbed6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6936ed54344f17af1eb43587bfdc38df58080adee60cd7f80ed15abd4fbbed6e", kill_on_drop: false }`
[INFO] [stdout] 6936ed54344f17af1eb43587bfdc38df58080adee60cd7f80ed15abd4fbbed6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 0f67dce4e28faf8dabd61e88c8a0600830f0f6bde720bd45ad9dc1ff0e3df283
[INFO] running `Command { std: "docker" "start" "-a" "0f67dce4e28faf8dabd61e88c8a0600830f0f6bde720bd45ad9dc1ff0e3df283", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:14:9
[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] 14 |     let result = counting_sort(&words, |word| word.len(), 20);
[INFO] [stdout] 
[INFO] [stderr]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `counting_sort` (bin "counting_sort" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/counting_sort-e3859ff4d38c9495)
[INFO] running `Command { std: "docker" "inspect" "0f67dce4e28faf8dabd61e88c8a0600830f0f6bde720bd45ad9dc1ff0e3df283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f67dce4e28faf8dabd61e88c8a0600830f0f6bde720bd45ad9dc1ff0e3df283", kill_on_drop: false }`
[INFO] [stdout] 0f67dce4e28faf8dabd61e88c8a0600830f0f6bde720bd45ad9dc1ff0e3df283