[INFO] fetching crate myopic-board 2.2.0...
[INFO] checking myopic-board-2.2.0 against try#83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1 for pr-134021
[INFO] extracting crate myopic-board 2.2.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate myopic-board 2.2.0
[INFO] finished tweaking crates.io crate myopic-board 2.2.0
[INFO] tweaked toml for crates.io crate myopic-board 2.2.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate myopic-board 2.2.0 on toolchain 83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 41 packages to latest compatible versions
[INFO] [stderr]       Adding itertools v0.8.2 (available: v0.15.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 5e39964504775b4c99847ca3c9028e883fefbc5d4a9e5cc3e8c4c0592da66120
[INFO] running `Command { std: "docker" "start" "5e39964504775b4c99847ca3c9028e883fefbc5d4a9e5cc3e8c4c0592da66120", 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" "5e39964504775b4c99847ca3c9028e883fefbc5d4a9e5cc3e8c4c0592da66120" "/opt/rustwide/cargo-home/bin/cargo" "+83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e39964504775b4c99847ca3c9028e883fefbc5d4a9e5cc3e8c4c0592da66120", 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" "5e39964504775b4c99847ca3c9028e883fefbc5d4a9e5cc3e8c4c0592da66120" "/opt/rustwide/cargo-home/bin/cargo" "+83ec5b3aeb5925d43b5be7b50c090f2f0336fcc1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.8.2
[INFO] [stderr]     Checking regex-syntax v0.8.11
[INFO] [stderr]     Checking either v1.16.0
[INFO] [stderr]    Compiling syn v2.0.118
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking aho-corasick v1.1.4
[INFO] [stderr]     Checking regex-automata v0.4.14
[INFO] [stderr]    Compiling darling_core v0.21.3
[INFO] [stderr]     Checking regex v1.12.4
[INFO] [stderr]    Compiling darling_macro v0.21.3
[INFO] [stderr]    Compiling darling v0.21.3
[INFO] [stderr]    Compiling enumset_derive v0.15.0
[INFO] [stderr]     Checking enumset v1.1.13
[INFO] [stderr]     Checking myopic-core v1.3.0
[INFO] [stderr]     Checking myopic-board v2.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.19s
[INFO] [stdout] warning: struct `TestCase` is never constructed
[INFO] [stdout]   --> src/imp/cache/termination.rs:98:12
[INFO] [stdout]    |
[INFO] [stdout] 98 |     struct TestCase {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5e39964504775b4c99847ca3c9028e883fefbc5d4a9e5cc3e8c4c0592da66120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e39964504775b4c99847ca3c9028e883fefbc5d4a9e5cc3e8c4c0592da66120", kill_on_drop: false }`
[INFO] [stdout] 5e39964504775b4c99847ca3c9028e883fefbc5d4a9e5cc3e8c4c0592da66120
