[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] checking NattapongSiri/demo_best_corpus_analysis.rs against master#5e3f1b148db5bfa27fee52464ae1f5d34c49d77b for pr-75502
[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 5e3f1b148db5bfa27fee52464ae1f5d34c49d77b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "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" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 298a04988850eb2ec5bf2a49e703fe267af43bdb8cf11216e2600c59c5f89a29
[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" "298a04988850eb2ec5bf2a49e703fe267af43bdb8cf11216e2600c59c5f89a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "298a04988850eb2ec5bf2a49e703fe267af43bdb8cf11216e2600c59c5f89a29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "298a04988850eb2ec5bf2a49e703fe267af43bdb8cf11216e2600c59c5f89a29", kill_on_drop: false }`
[INFO] [stdout] 298a04988850eb2ec5bf2a49e703fe267af43bdb8cf11216e2600c59c5f89a29
[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=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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+5e3f1b148db5bfa27fee52464ae1f5d34c49d77b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c807222219435be632699d639e792237624fe9168cf43ff3ca96643e5f94d8d
[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" "5c807222219435be632699d639e792237624fe9168cf43ff3ca96643e5f94d8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]     Checking cfg-if v0.1.7
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]     Checking scopeguard v0.3.3
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking memchr v2.2.0
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking unbytify v0.2.0
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking csv v1.0.7
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking 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] [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 11.40s
[INFO] running `Command { std: "docker" "inspect" "5c807222219435be632699d639e792237624fe9168cf43ff3ca96643e5f94d8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c807222219435be632699d639e792237624fe9168cf43ff3ca96643e5f94d8d", kill_on_drop: false }`
[INFO] [stdout] 5c807222219435be632699d639e792237624fe9168cf43ff3ca96643e5f94d8d