[INFO] cloning repository https://github.com/r4ai/rust-tetris-tutorial
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/r4ai/rust-tetris-tutorial" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr4ai%2Frust-tetris-tutorial", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr4ai%2Frust-tetris-tutorial'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d35bfede2a0e166cff0d3872dc9131eb872794d
[INFO] testing r4ai/rust-tetris-tutorial against beta-2025-09-21 for beta-1.91-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fr4ai%2Frust-tetris-tutorial" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/r4ai/rust-tetris-tutorial
[INFO] finished tweaking git repo https://github.com/r4ai/rust-tetris-tutorial
[INFO] tweaked toml for git repo https://github.com/r4ai/rust-tetris-tutorial written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/r4ai/rust-tetris-tutorial on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/r4ai/rust-tetris-tutorial 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-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8791723b814669253806cff0b544df69e2002a8f291f19ceaafb9787449c1a98
[INFO] running `Command { std: "docker" "start" "-a" "8791723b814669253806cff0b544df69e2002a8f291f19ceaafb9787449c1a98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8791723b814669253806cff0b544df69e2002a8f291f19ceaafb9787449c1a98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8791723b814669253806cff0b544df69e2002a8f291f19ceaafb9787449c1a98", kill_on_drop: false }`
[INFO] [stdout] 8791723b814669253806cff0b544df69e2002a8f291f19ceaafb9787449c1a98
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f8ac1f5fcf00e219f14298b183ca22c9864a6897b6b591c09f9e40b543f1b34
[INFO] running `Command { std: "docker" "start" "-a" "9f8ac1f5fcf00e219f14298b183ca22c9864a6897b6b591c09f9e40b543f1b34", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling io-lifetimes v1.0.5
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling rustix v0.36.8
[INFO] [stderr]    Compiling linux-raw-sys v0.1.4
[INFO] [stderr]    Compiling os_str_bytes v6.4.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling clap_lex v0.3.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling nix v0.26.2
[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 is-terminal v0.4.3
[INFO] [stderr]    Compiling clap_derive v4.1.0
[INFO] [stderr]    Compiling clap v4.1.4
[INFO] [stderr]    Compiling getch-rs v0.1.0
[INFO] [stderr]    Compiling rust-tetris-tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `MAX_ERASABLE_LINE` is never used
[INFO] [stdout]  --> src/ai.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const MAX_ERASABLE_LINE: usize = 4;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_HEIGHT` is never used
[INFO] [stdout]   --> src/ai.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const MAX_HEIGHT: usize = 20;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.05s
[INFO] running `Command { std: "docker" "inspect" "9f8ac1f5fcf00e219f14298b183ca22c9864a6897b6b591c09f9e40b543f1b34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f8ac1f5fcf00e219f14298b183ca22c9864a6897b6b591c09f9e40b543f1b34", kill_on_drop: false }`
[INFO] [stdout] 9f8ac1f5fcf00e219f14298b183ca22c9864a6897b6b591c09f9e40b543f1b34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1790e28c14992be67717445c9b70b14ed9249002d82c8a4fc2052680ef06c69a
[INFO] running `Command { std: "docker" "start" "-a" "1790e28c14992be67717445c9b70b14ed9249002d82c8a4fc2052680ef06c69a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-tetris-tutorial v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: constant `MAX_ERASABLE_LINE` is never used
[INFO] [stdout]  --> src/ai.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 9 | const MAX_ERASABLE_LINE: usize = 4;
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_HEIGHT` is never used
[INFO] [stdout]   --> src/ai.rs:10:7
[INFO] [stdout]    |
[INFO] [stdout] 10 | const MAX_HEIGHT: usize = 20;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "1790e28c14992be67717445c9b70b14ed9249002d82c8a4fc2052680ef06c69a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1790e28c14992be67717445c9b70b14ed9249002d82c8a4fc2052680ef06c69a", kill_on_drop: false }`
[INFO] [stdout] 1790e28c14992be67717445c9b70b14ed9249002d82c8a4fc2052680ef06c69a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 11e6f094bccb24a5d3ba51e1b236bb904fc2d87f216db7dd39afcf9791f64cf4
[INFO] running `Command { std: "docker" "start" "-a" "11e6f094bccb24a5d3ba51e1b236bb904fc2d87f216db7dd39afcf9791f64cf4", kill_on_drop: false }`
[INFO] [stderr] warning: constant `MAX_ERASABLE_LINE` is never used
[INFO] [stderr]  --> src/ai.rs:9:7
[INFO] [stderr]   |
[INFO] [stderr] 9 | const MAX_ERASABLE_LINE: usize = 4;
[INFO] [stderr]   |       ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MAX_HEIGHT` is never used
[INFO] [stderr]   --> src/ai.rs:10:7
[INFO] [stderr]    |
[INFO] [stderr] 10 | const MAX_HEIGHT: usize = 20;
[INFO] [stderr]    |       ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-tetris-tutorial` (bin "rust-tetris-tutorial" test) generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_tetris_tutorial-38ce40a97c2a1550)
[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" "11e6f094bccb24a5d3ba51e1b236bb904fc2d87f216db7dd39afcf9791f64cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11e6f094bccb24a5d3ba51e1b236bb904fc2d87f216db7dd39afcf9791f64cf4", kill_on_drop: false }`
[INFO] [stdout] 11e6f094bccb24a5d3ba51e1b236bb904fc2d87f216db7dd39afcf9791f64cf4