[INFO] cloning repository https://github.com/winterunderscore/toukishi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/winterunderscore/toukishi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinterunderscore%2Ftoukishi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinterunderscore%2Ftoukishi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 74bd88b6e2db1539de918bf82841f6cacefbfb9c
[INFO] checking winterunderscore/toukishi against master#cccf075eba88363269e8589ebb8d40874cc542d8 for pr-142681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinterunderscore%2Ftoukishi" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/winterunderscore/toukishi
[INFO] finished tweaking git repo https://github.com/winterunderscore/toukishi
[INFO] tweaked toml for git repo https://github.com/winterunderscore/toukishi written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/winterunderscore/toukishi on toolchain cccf075eba88363269e8589ebb8d40874cc542d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cccf075eba88363269e8589ebb8d40874cc542d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/winterunderscore/toukishi already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cccf075eba88363269e8589ebb8d40874cc542d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+cccf075eba88363269e8589ebb8d40874cc542d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a493450a435db7bfd143643d2961b036d12110a75d767ffaa0f90ebcefb0d12
[INFO] running `Command { std: "docker" "start" "-a" "0a493450a435db7bfd143643d2961b036d12110a75d767ffaa0f90ebcefb0d12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a493450a435db7bfd143643d2961b036d12110a75d767ffaa0f90ebcefb0d12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a493450a435db7bfd143643d2961b036d12110a75d767ffaa0f90ebcefb0d12", kill_on_drop: false }`
[INFO] [stdout] 0a493450a435db7bfd143643d2961b036d12110a75d767ffaa0f90ebcefb0d12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "RUSTDOCFLAGS=--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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+cccf075eba88363269e8589ebb8d40874cc542d8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b586457004f736365d43fa3b21e1816359812b3ba6e3bf70c8bad05efb85744b
[INFO] running `Command { std: "docker" "start" "-a" "b586457004f736365d43fa3b21e1816359812b3ba6e3bf70c8bad05efb85744b", kill_on_drop: false }`
[INFO] [stderr]     Checking toukishi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Visitor` is never used
[INFO] [stdout]  --> src/expr.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Visitor<T> {
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Acceptor` is never used
[INFO] [stdout]   --> src/expr.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Acceptor<T> {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expr` is never used
[INFO] [stdout]   --> src/expr.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Expr {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Visitor` is never used
[INFO] [stdout]  --> src/expr.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Visitor<T> {
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Acceptor` is never used
[INFO] [stdout]   --> src/expr.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Acceptor<T> {
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expr` is never used
[INFO] [stdout]   --> src/expr.rs:14:10
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Expr {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s
[INFO] running `Command { std: "docker" "inspect" "b586457004f736365d43fa3b21e1816359812b3ba6e3bf70c8bad05efb85744b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b586457004f736365d43fa3b21e1816359812b3ba6e3bf70c8bad05efb85744b", kill_on_drop: false }`
[INFO] [stdout] b586457004f736365d43fa3b21e1816359812b3ba6e3bf70c8bad05efb85744b