[INFO] cloning repository https://github.com/satoukick/neko
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/satoukick/neko" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsatoukick%2Fneko", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsatoukick%2Fneko'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 75a9513e8e46ddb3a57cfd4935813e813ea3bdeb
[INFO] checking satoukick/neko against master#c5fbcd35a8217a17f6b63a22217ace06cf8f5f02 for pr-86194
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsatoukick%2Fneko" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/satoukick/neko on toolchain c5fbcd35a8217a17f6b63a22217ace06cf8f5f02
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/satoukick/neko
[INFO] finished tweaking git repo https://github.com/satoukick/neko
[INFO] tweaked toml for git repo https://github.com/satoukick/neko written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/satoukick/neko already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6b8ad7b65ff4c9a73b34f8aecef3546c7d76f81cecf5a7de5cd118d2732fee7
[INFO] running `Command { std: "docker" "start" "-a" "c6b8ad7b65ff4c9a73b34f8aecef3546c7d76f81cecf5a7de5cd118d2732fee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6b8ad7b65ff4c9a73b34f8aecef3546c7d76f81cecf5a7de5cd118d2732fee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6b8ad7b65ff4c9a73b34f8aecef3546c7d76f81cecf5a7de5cd118d2732fee7", kill_on_drop: false }`
[INFO] [stdout] c6b8ad7b65ff4c9a73b34f8aecef3546c7d76f81cecf5a7de5cd118d2732fee7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+c5fbcd35a8217a17f6b63a22217ace06cf8f5f02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f768cab47c95a2c0586c3f40d05c56ff92541cbe3548af24c05bff77488bc60e
[INFO] running `Command { std: "docker" "start" "-a" "f768cab47c95a2c0586c3f40d05c56ff92541cbe3548af24c05bff77488bc60e", kill_on_drop: false }`
[INFO] [stderr]     Checking neko v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::options::Options`
[INFO] [stdout]  --> src/read.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::options::Options;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Options`
[INFO] [stdout]  --> src/options.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Options {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::options::Options`
[INFO] [stdout]  --> src/read.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::options::Options;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `Options`
[INFO] [stdout]  --> src/options.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub enum Options {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.20s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f768cab47c95a2c0586c3f40d05c56ff92541cbe3548af24c05bff77488bc60e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f768cab47c95a2c0586c3f40d05c56ff92541cbe3548af24c05bff77488bc60e", kill_on_drop: false }`
[INFO] [stdout] f768cab47c95a2c0586c3f40d05c56ff92541cbe3548af24c05bff77488bc60e