[INFO] cloning repository https://github.com/suxiaoshao/compiler-lab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/suxiaoshao/compiler-lab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuxiaoshao%2Fcompiler-lab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuxiaoshao%2Fcompiler-lab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ad0e02015632a5cce4aae840068d0d816e3eb690
[INFO] checking suxiaoshao/compiler-lab against 79c0559184f27f4433a6fbc260b950d06d4a4889 for pr-162233-crater-rollup
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuxiaoshao%2Fcompiler-lab" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/suxiaoshao/compiler-lab
[INFO] finished tweaking git repo https://github.com/suxiaoshao/compiler-lab
[INFO] tweaked toml for git repo https://github.com/suxiaoshao/compiler-lab written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/suxiaoshao/compiler-lab on toolchain 79c0559184f27f4433a6fbc260b950d06d4a4889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+79c0559184f27f4433a6fbc260b950d06d4a4889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/suxiaoshao/compiler-lab 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" "+79c0559184f27f4433a6fbc260b950d06d4a4889" "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-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5fc612797de1d8f01cbc99b33e5fa5ba1abe7a78f1cb540164bd01efc8643ada
[INFO] running `Command { std: "docker" "start" "5fc612797de1d8f01cbc99b33e5fa5ba1abe7a78f1cb540164bd01efc8643ada", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fc612797de1d8f01cbc99b33e5fa5ba1abe7a78f1cb540164bd01efc8643ada", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5fc612797de1d8f01cbc99b33e5fa5ba1abe7a78f1cb540164bd01efc8643ada" "/opt/rustwide/cargo-home/bin/cargo" "+79c0559184f27f4433a6fbc260b950d06d4a4889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5fc612797de1d8f01cbc99b33e5fa5ba1abe7a78f1cb540164bd01efc8643ada", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "5fc612797de1d8f01cbc99b33e5fa5ba1abe7a78f1cb540164bd01efc8643ada" "/opt/rustwide/cargo-home/bin/cargo" "+79c0559184f27f4433a6fbc260b950d06d4a4889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking compiler-lab v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `position` is never read
[INFO] [stdout]   --> src/tokenizer/read_token_state/empty.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(in crate::tokenizer) struct Empty {
[INFO] [stdout]    |                                 ----- field in this struct
[INFO] [stdout] 23 |     position: Position,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Empty` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `scope` is never read
[INFO] [stdout]   --> src/translator/identifier.rs:30:31
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub(in crate::translator) struct Identifier {
[INFO] [stdout]    |                                  ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub(in crate::translator) scope: i32,
[INFO] [stdout]    |                               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Identifier` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `position` is never read
[INFO] [stdout]   --> src/tokenizer/read_token_state/empty.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub(in crate::tokenizer) struct Empty {
[INFO] [stdout]    |                                 ----- field in this struct
[INFO] [stdout] 23 |     position: Position,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Empty` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `scope` is never read
[INFO] [stdout]   --> src/translator/identifier.rs:30:31
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub(in crate::translator) struct Identifier {
[INFO] [stdout]    |                                  ---------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub(in crate::translator) scope: i32,
[INFO] [stdout]    |                               ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Identifier` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.14s
[INFO] running `Command { std: "docker" "inspect" "5fc612797de1d8f01cbc99b33e5fa5ba1abe7a78f1cb540164bd01efc8643ada", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fc612797de1d8f01cbc99b33e5fa5ba1abe7a78f1cb540164bd01efc8643ada", kill_on_drop: false }`
[INFO] [stdout] 5fc612797de1d8f01cbc99b33e5fa5ba1abe7a78f1cb540164bd01efc8643ada
