[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#03eb45452305f2d52348279d0caa5fc1f12c438d for pr-138176
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwinterunderscore%2Ftoukishi" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/winterunderscore/toukishi on toolchain 03eb45452305f2d52348279d0caa5fc1f12c438d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-4-tc1/source/Cargo.toml
[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" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 11b031ad07d002d37accd8eae9420856606acf24d096333fef8f3616ede662a7
[INFO] running `Command { std: "docker" "start" "-a" "11b031ad07d002d37accd8eae9420856606acf24d096333fef8f3616ede662a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "11b031ad07d002d37accd8eae9420856606acf24d096333fef8f3616ede662a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11b031ad07d002d37accd8eae9420856606acf24d096333fef8f3616ede662a7", kill_on_drop: false }`
[INFO] [stdout] 11b031ad07d002d37accd8eae9420856606acf24d096333fef8f3616ede662a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+03eb45452305f2d52348279d0caa5fc1f12c438d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 04a944029340d909e57084ea2b86a761351c9fa8629ca4d72d027e8a7a945ca8
[INFO] running `Command { std: "docker" "start" "-a" "04a944029340d909e57084ea2b86a761351c9fa8629ca4d72d027e8a7a945ca8", kill_on_drop: false }`
[INFO] [stderr]     Checking toukishi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `accept` is never used
[INFO] [stdout]   --> src/expr.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Acceptor<T> {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 11 |     fn accept(&self, visitor: &mut dyn Visitor<T>) -> T;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Binary`, `Grouping`, `Literal`, and `Unary` are never constructed
[INFO] [stdout]   --> src/expr.rs:15:2
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Expr {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 15 |     Binary {
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     Grouping {
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     Literal {
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     Unary {
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `accept` is never used
[INFO] [stdout]   --> src/expr.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Acceptor<T> {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] 11 |     fn accept(&self, visitor: &mut dyn Visitor<T>) -> T;
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Binary`, `Grouping`, `Literal`, and `Unary` are never constructed
[INFO] [stdout]   --> src/expr.rs:15:2
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub enum Expr {
[INFO] [stdout]    |          ---- variants in this enum
[INFO] [stdout] 15 |     Binary {
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 20 |     Grouping {
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     Literal {
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 26 |     Unary {
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "04a944029340d909e57084ea2b86a761351c9fa8629ca4d72d027e8a7a945ca8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04a944029340d909e57084ea2b86a761351c9fa8629ca4d72d027e8a7a945ca8", kill_on_drop: false }`
[INFO] [stdout] 04a944029340d909e57084ea2b86a761351c9fa8629ca4d72d027e8a7a945ca8