[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] ddced4e130c35d851e326930e02588f37dfcdb3c
[INFO] checking satoukick/neko against master#0a8629bff642c3c3b84bb644c0099194f063b627 for pr-86231
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsatoukick%2Fneko" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/satoukick/neko on toolchain 0a8629bff642c3c3b84bb644c0099194f063b627
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "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-8/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" "+0a8629bff642c3c3b84bb644c0099194f063b627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4b4f252ded0fea6d65fd9b4288b615eebab1abad22ce85d84cd54c94c02be37
[INFO] running `Command { std: "docker" "start" "-a" "a4b4f252ded0fea6d65fd9b4288b615eebab1abad22ce85d84cd54c94c02be37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4b4f252ded0fea6d65fd9b4288b615eebab1abad22ce85d84cd54c94c02be37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4b4f252ded0fea6d65fd9b4288b615eebab1abad22ce85d84cd54c94c02be37", kill_on_drop: false }`
[INFO] [stdout] a4b4f252ded0fea6d65fd9b4288b615eebab1abad22ce85d84cd54c94c02be37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+0a8629bff642c3c3b84bb644c0099194f063b627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4075c6b2245e3ecbd78cf695cda05c0b284414910813f6411f0f283dfcf7759e
[INFO] running `Command { std: "docker" "start" "-a" "4075c6b2245e3ecbd78cf695cda05c0b284414910813f6411f0f283dfcf7759e", kill_on_drop: false }`
[INFO] [stderr]     Checking neko v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/read.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn decide_modes(args: &[String]) -> Result<Vec<Options>, std::io::Error> {
[INFO] [stdout]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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: function is never used: `decide_modes`
[INFO] [stdout]   --> src/read.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn decide_modes(args: &[String]) -> Result<Vec<Options>, std::io::Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `args`
[INFO] [stdout]   --> src/read.rs:27:21
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn decide_modes(args: &[String]) -> Result<Vec<Options>, std::io::Error> {
[INFO] [stdout]    |                     ^^^^ help: if this is intentional, prefix it with an underscore: `_args`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` 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: function is never used: `decide_modes`
[INFO] [stdout]   --> src/read.rs:27:8
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub fn decide_modes(args: &[String]) -> Result<Vec<Options>, std::io::Error> {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4075c6b2245e3ecbd78cf695cda05c0b284414910813f6411f0f283dfcf7759e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4075c6b2245e3ecbd78cf695cda05c0b284414910813f6411f0f283dfcf7759e", kill_on_drop: false }`
[INFO] [stdout] 4075c6b2245e3ecbd78cf695cda05c0b284414910813f6411f0f283dfcf7759e