[INFO] cloning repository https://github.com/NattapongSiri/demo_best_corpus_analysis.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NattapongSiri/demo_best_corpus_analysis.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNattapongSiri%2Fdemo_best_corpus_analysis.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNattapongSiri%2Fdemo_best_corpus_analysis.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 122e9ed3f56355a1fc3ca26a5894c7104ec7c9cc
[INFO] testing NattapongSiri/demo_best_corpus_analysis.rs against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNattapongSiri%2Fdemo_best_corpus_analysis.rs" "/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/NattapongSiri/demo_best_corpus_analysis.rs on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/NattapongSiri/demo_best_corpus_analysis.rs
[INFO] finished tweaking git repo https://github.com/NattapongSiri/demo_best_corpus_analysis.rs
[INFO] tweaked toml for git repo https://github.com/NattapongSiri/demo_best_corpus_analysis.rs written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/NattapongSiri/demo_best_corpus_analysis.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unbytify v0.2.0
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8aa6ace892832e9d5857bc252938ab75baa4d536e02272190f6e6e616046cabd
[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" "8aa6ace892832e9d5857bc252938ab75baa4d536e02272190f6e6e616046cabd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8aa6ace892832e9d5857bc252938ab75baa4d536e02272190f6e6e616046cabd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8aa6ace892832e9d5857bc252938ab75baa4d536e02272190f6e6e616046cabd", kill_on_drop: false }`
[INFO] [stdout] 8aa6ace892832e9d5857bc252938ab75baa4d536e02272190f6e6e616046cabd
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d7d191dbf08a594102cfcc9ba90f812c2f698bc468e694aad339fe98df6b9bc7
[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" "d7d191dbf08a594102cfcc9ba90f812c2f698bc468e694aad339fe98df6b9bc7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.53
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling unbytify v0.2.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling csv v1.0.7
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling best_analysis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `labels`
[INFO] [stdout]    --> src/main.rs:256:16
[INFO] [stdout]     |
[INFO] [stdout] 256 |     let (vecs, labels): (Vec<u8>, Vec<u8>) = tagged_chars.iter().cloned().unzip();
[INFO] [stdout]     |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels`
[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 17.93s
[INFO] running `Command { std: "docker" "inspect" "d7d191dbf08a594102cfcc9ba90f812c2f698bc468e694aad339fe98df6b9bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7d191dbf08a594102cfcc9ba90f812c2f698bc468e694aad339fe98df6b9bc7", kill_on_drop: false }`
[INFO] [stdout] d7d191dbf08a594102cfcc9ba90f812c2f698bc468e694aad339fe98df6b9bc7
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee284ee342c024153d62224d8b848ae977989a861e827b75b88381ba0e7e1e9a
[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" "ee284ee342c024153d62224d8b848ae977989a861e827b75b88381ba0e7e1e9a", kill_on_drop: false }`
[INFO] [stderr]    Compiling best_analysis v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `labels`
[INFO] [stdout]    --> src/main.rs:256:16
[INFO] [stdout]     |
[INFO] [stdout] 256 |     let (vecs, labels): (Vec<u8>, Vec<u8>) = tagged_chars.iter().cloned().unzip();
[INFO] [stdout]     |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels`
[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 1.24s
[INFO] running `Command { std: "docker" "inspect" "ee284ee342c024153d62224d8b848ae977989a861e827b75b88381ba0e7e1e9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee284ee342c024153d62224d8b848ae977989a861e827b75b88381ba0e7e1e9a", kill_on_drop: false }`
[INFO] [stdout] ee284ee342c024153d62224d8b848ae977989a861e827b75b88381ba0e7e1e9a
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0ad24f1713ffa4fea2a289aed11df421c7eccede1b3e919e1073e7b1eb663b92
[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" "0ad24f1713ffa4fea2a289aed11df421c7eccede1b3e919e1073e7b1eb663b92", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `labels`
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/main.rs:256:16
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 256 |     let (vecs, labels): (Vec<u8>, Vec<u8>) = tagged_chars.iter().cloned().unzip();
[INFO] [stdout] 
[INFO] [stderr]     |                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/best_analysis-dfaec89a279b290b
[INFO] running `Command { std: "docker" "inspect" "0ad24f1713ffa4fea2a289aed11df421c7eccede1b3e919e1073e7b1eb663b92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ad24f1713ffa4fea2a289aed11df421c7eccede1b3e919e1073e7b1eb663b92", kill_on_drop: false }`
[INFO] [stdout] 0ad24f1713ffa4fea2a289aed11df421c7eccede1b3e919e1073e7b1eb663b92