[INFO] cloning repository https://github.com/daikimiura/rust_toy_parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/daikimiura/rust_toy_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaikimiura%2Frust_toy_parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaikimiura%2Frust_toy_parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b834b0b5872d5fa8d8d8d1e6a49d594d801d94d9
[INFO] checking daikimiura/rust_toy_parser/b834b0b5872d5fa8d8d8d1e6a49d594d801d94d9 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdaikimiura%2Frust_toy_parser" "/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/daikimiura/rust_toy_parser on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/daikimiura/rust_toy_parser
[INFO] finished tweaking git repo https://github.com/daikimiura/rust_toy_parser
[INFO] tweaked toml for git repo https://github.com/daikimiura/rust_toy_parser written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/daikimiura/rust_toy_parser 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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1df3b484c17800ca84262637484ecd0af66ff44fdbbd5a28a5ec22aee7bd729e
[INFO] running `Command { std: "docker" "start" "-a" "1df3b484c17800ca84262637484ecd0af66ff44fdbbd5a28a5ec22aee7bd729e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1df3b484c17800ca84262637484ecd0af66ff44fdbbd5a28a5ec22aee7bd729e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1df3b484c17800ca84262637484ecd0af66ff44fdbbd5a28a5ec22aee7bd729e", kill_on_drop: false }`
[INFO] [stdout] 1df3b484c17800ca84262637484ecd0af66ff44fdbbd5a28a5ec22aee7bd729e
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e1756e0c78c032ba9b736424a1178869a044d7f5fca98f7492337c8c7f0c1cac
[INFO] running `Command { std: "docker" "start" "-a" "e1756e0c78c032ba9b736424a1178869a044d7f5fca98f7492337c8c7f0c1cac", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_toy_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function `num` is never used
[INFO] [stdout]    --> src/main.rs:244:8
[INFO] [stdout]     |
[INFO] [stdout] 243 | impl AstNode {
[INFO] [stdout]     | ------------ associated function in this implementation
[INFO] [stdout] 244 |     fn num(n: u64, loc: Loc) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `UnexpectedToken` is never constructed
[INFO] [stdout]    --> src/main.rs:266:5
[INFO] [stdout]     |
[INFO] [stdout] 265 | enum ParseError {
[INFO] [stdout]     |      ---------- variant in this enum
[INFO] [stdout] 266 |     UnexpectedToken(Token),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `UnexpectedToken` is never constructed
[INFO] [stdout]    --> src/main.rs:266:5
[INFO] [stdout]     |
[INFO] [stdout] 265 | enum ParseError {
[INFO] [stdout]     |      ---------- variant in this enum
[INFO] [stdout] 266 |     UnexpectedToken(Token),
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "e1756e0c78c032ba9b736424a1178869a044d7f5fca98f7492337c8c7f0c1cac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1756e0c78c032ba9b736424a1178869a044d7f5fca98f7492337c8c7f0c1cac", kill_on_drop: false }`
[INFO] [stdout] e1756e0c78c032ba9b736424a1178869a044d7f5fca98f7492337c8c7f0c1cac