[INFO] cloning repository https://github.com/tailcalled/corroded-knights
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tailcalled/corroded-knights" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftailcalled%2Fcorroded-knights", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftailcalled%2Fcorroded-knights'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bb83d801fde1aaafa9fdf2677dba965d7d74f9f1
[INFO] testing tailcalled/corroded-knights against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftailcalled%2Fcorroded-knights" "/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/tailcalled/corroded-knights
[INFO] finished tweaking git repo https://github.com/tailcalled/corroded-knights
[INFO] tweaked toml for git repo https://github.com/tailcalled/corroded-knights written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tailcalled/corroded-knights on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tailcalled/corroded-knights 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing tailcalled/corroded-knights against beta-2026-04-21 for beta-1.96-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftailcalled%2Fcorroded-knights" "/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/tailcalled/corroded-knights
[INFO] finished tweaking git repo https://github.com/tailcalled/corroded-knights
[INFO] tweaked toml for git repo https://github.com/tailcalled/corroded-knights written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tailcalled/corroded-knights on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tailcalled/corroded-knights 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" "+beta-2026-04-21" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded numtoa v0.1.0
[INFO] [stderr]   Downloaded redox_termios v0.1.2
[INFO] [stderr]   Downloaded termion v2.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46fcc529484530a3475cb9a658c82b1cbf3e07aa4fecea830cbf729d6e531f0d
[INFO] running `Command { std: "docker" "start" "-a" "46fcc529484530a3475cb9a658c82b1cbf3e07aa4fecea830cbf729d6e531f0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46fcc529484530a3475cb9a658c82b1cbf3e07aa4fecea830cbf729d6e531f0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46fcc529484530a3475cb9a658c82b1cbf3e07aa4fecea830cbf729d6e531f0d", kill_on_drop: false }`
[INFO] [stdout] 46fcc529484530a3475cb9a658c82b1cbf3e07aa4fecea830cbf729d6e531f0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f44dcd89d94105a4d237ed40e6145f3e62331806f9a3fe0c5cedfcc7e57ffe96
[INFO] running `Command { std: "docker" "start" "-a" "f44dcd89d94105a4d237ed40e6145f3e62331806f9a3fe0c5cedfcc7e57ffe96", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling getrandom v0.2.9
[INFO] [stderr]    Compiling termion v2.0.1
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling corroded-knights v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `bmv`
[INFO] [stdout]   --> src/strategy/minimax.rs:59:39
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     else if let Some((bmv, bscore)) = best {
[INFO] [stdout]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_bmv`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bmv`
[INFO] [stdout]    --> src/strategy/minimax.rs:153:39
[INFO] [stdout]     |
[INFO] [stdout] 153 |                     else if let Some((bmv, bscore)) = best {
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_bmv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bmv`
[INFO] [stdout]    --> src/strategy/minimax.rs:209:39
[INFO] [stdout]     |
[INFO] [stdout] 209 |                     else if let Some((bmv, bscore)) = best {
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_bmv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bmv`
[INFO] [stdout]    --> src/strategy/minimax.rs:277:39
[INFO] [stdout]     |
[INFO] [stdout] 277 |                     else if let Some((bmv, bscore)) = best {
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_bmv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.85s
[INFO] running `Command { std: "docker" "inspect" "f44dcd89d94105a4d237ed40e6145f3e62331806f9a3fe0c5cedfcc7e57ffe96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f44dcd89d94105a4d237ed40e6145f3e62331806f9a3fe0c5cedfcc7e57ffe96", kill_on_drop: false }`
[INFO] [stdout] f44dcd89d94105a4d237ed40e6145f3e62331806f9a3fe0c5cedfcc7e57ffe96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 015a04d1793ed64eb13f9c4e62a7ae7b790dda55b8dd6f9bc68d06e1ecdeb118
[INFO] running `Command { std: "docker" "start" "-a" "015a04d1793ed64eb13f9c4e62a7ae7b790dda55b8dd6f9bc68d06e1ecdeb118", kill_on_drop: false }`
[INFO] [stderr]    Compiling corroded-knights v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `bmv`
[INFO] [stdout]   --> src/strategy/minimax.rs:59:39
[INFO] [stdout]    |
[INFO] [stdout] 59 |                     else if let Some((bmv, bscore)) = best {
[INFO] [stdout]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_bmv`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bmv`
[INFO] [stdout]    --> src/strategy/minimax.rs:153:39
[INFO] [stdout]     |
[INFO] [stdout] 153 |                     else if let Some((bmv, bscore)) = best {
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_bmv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bmv`
[INFO] [stdout]    --> src/strategy/minimax.rs:209:39
[INFO] [stdout]     |
[INFO] [stdout] 209 |                     else if let Some((bmv, bscore)) = best {
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_bmv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bmv`
[INFO] [stdout]    --> src/strategy/minimax.rs:277:39
[INFO] [stdout]     |
[INFO] [stdout] 277 |                     else if let Some((bmv, bscore)) = best {
[INFO] [stdout]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_bmv`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "015a04d1793ed64eb13f9c4e62a7ae7b790dda55b8dd6f9bc68d06e1ecdeb118", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "015a04d1793ed64eb13f9c4e62a7ae7b790dda55b8dd6f9bc68d06e1ecdeb118", kill_on_drop: false }`
[INFO] [stdout] 015a04d1793ed64eb13f9c4e62a7ae7b790dda55b8dd6f9bc68d06e1ecdeb118
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 46726a124badaa7e8a7de598e876997444f26922588dd7cf89baf321e776ff63
[INFO] running `Command { std: "docker" "start" "-a" "46726a124badaa7e8a7de598e876997444f26922588dd7cf89baf321e776ff63", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `bmv`
[INFO] [stderr]   --> src/strategy/minimax.rs:59:39
[INFO] [stderr]    |
[INFO] [stderr] 59 |                     else if let Some((bmv, bscore)) = best {
[INFO] [stderr]    |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_bmv`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bmv`
[INFO] [stderr]    --> src/strategy/minimax.rs:153:39
[INFO] [stderr]     |
[INFO] [stderr] 153 |                     else if let Some((bmv, bscore)) = best {
[INFO] [stderr]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_bmv`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bmv`
[INFO] [stderr]    --> src/strategy/minimax.rs:209:39
[INFO] [stderr]     |
[INFO] [stderr] 209 |                     else if let Some((bmv, bscore)) = best {
[INFO] [stderr]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_bmv`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bmv`
[INFO] [stderr]    --> src/strategy/minimax.rs:277:39
[INFO] [stderr]     |
[INFO] [stderr] 277 |                     else if let Some((bmv, bscore)) = best {
[INFO] [stderr]     |                                       ^^^ help: if this is intentional, prefix it with an underscore: `_bmv`
[INFO] [stderr] 
[INFO] [stderr] warning: `corroded-knights` (bin "corroded-knights" test) generated 4 warnings (run `cargo fix --bin "corroded-knights" -p corroded-knights --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/corroded_knights-f7610167b26be31f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "46726a124badaa7e8a7de598e876997444f26922588dd7cf89baf321e776ff63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46726a124badaa7e8a7de598e876997444f26922588dd7cf89baf321e776ff63", kill_on_drop: false }`
[INFO] [stdout] 46726a124badaa7e8a7de598e876997444f26922588dd7cf89baf321e776ff63