[INFO] cloning repository https://github.com/kelleyvanevert/cube_puzzle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kelleyvanevert/cube_puzzle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkelleyvanevert%2Fcube_puzzle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkelleyvanevert%2Fcube_puzzle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f4bdb83e11a4ea00418647f580d8ed26bd23862
[INFO] testing kelleyvanevert/cube_puzzle 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%2Fkelleyvanevert%2Fcube_puzzle" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kelleyvanevert/cube_puzzle
[INFO] finished tweaking git repo https://github.com/kelleyvanevert/cube_puzzle
[INFO] tweaked toml for git repo https://github.com/kelleyvanevert/cube_puzzle written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kelleyvanevert/cube_puzzle 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/kelleyvanevert/cube_puzzle 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 409a1595d42f2c40679b7573f997d294f101f9202ba869e7309f1f3495748011
[INFO] running `Command { std: "docker" "start" "-a" "409a1595d42f2c40679b7573f997d294f101f9202ba869e7309f1f3495748011", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "409a1595d42f2c40679b7573f997d294f101f9202ba869e7309f1f3495748011", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "409a1595d42f2c40679b7573f997d294f101f9202ba869e7309f1f3495748011", kill_on_drop: false }`
[INFO] [stdout] 409a1595d42f2c40679b7573f997d294f101f9202ba869e7309f1f3495748011
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ec45fd09c08ab90add7d94a3145a3b3c9dd55c6195f778ec2abf85a0488b1641
[INFO] running `Command { std: "docker" "start" "-a" "ec45fd09c08ab90add7d94a3145a3b3c9dd55c6195f778ec2abf85a0488b1641", kill_on_drop: false }`
[INFO] [stderr]    Compiling compare v0.1.0
[INFO] [stderr]    Compiling itertools v0.14.0
[INFO] [stderr]    Compiling binary-heap-plus v0.5.0
[INFO] [stderr]    Compiling cube_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `block` and `pos` are never read
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Placement {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 16 |     block: Block,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 17 |     pos: Pos,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Placement` has derived impls for the traits `Clone` and `Debug`, 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.55s
[INFO] running `Command { std: "docker" "inspect" "ec45fd09c08ab90add7d94a3145a3b3c9dd55c6195f778ec2abf85a0488b1641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec45fd09c08ab90add7d94a3145a3b3c9dd55c6195f778ec2abf85a0488b1641", kill_on_drop: false }`
[INFO] [stdout] ec45fd09c08ab90add7d94a3145a3b3c9dd55c6195f778ec2abf85a0488b1641
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 6badec038924cbf0422c8fe88136173ba12e0a587aa9ded3ab1cc6ead2d054b3
[INFO] running `Command { std: "docker" "start" "-a" "6badec038924cbf0422c8fe88136173ba12e0a587aa9ded3ab1cc6ead2d054b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling cube_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `block` and `pos` are never read
[INFO] [stdout]   --> src/main.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Placement {
[INFO] [stdout]    |        --------- fields in this struct
[INFO] [stdout] 16 |     block: Block,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 17 |     pos: Pos,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Placement` has derived impls for the traits `Clone` and `Debug`, 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] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "6badec038924cbf0422c8fe88136173ba12e0a587aa9ded3ab1cc6ead2d054b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6badec038924cbf0422c8fe88136173ba12e0a587aa9ded3ab1cc6ead2d054b3", kill_on_drop: false }`
[INFO] [stdout] 6badec038924cbf0422c8fe88136173ba12e0a587aa9ded3ab1cc6ead2d054b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2a90e19ebc128929839ed601a237f770cf8561e1c05a1e7f2222f05ed3ebf7d4
[INFO] running `Command { std: "docker" "start" "-a" "2a90e19ebc128929839ed601a237f770cf8561e1c05a1e7f2222f05ed3ebf7d4", kill_on_drop: false }`
[INFO] [stderr] warning: fields `block` and `pos` are never read
[INFO] [stderr]   --> src/main.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 15 | struct Placement {
[INFO] [stderr]    |        --------- fields in this struct
[INFO] [stderr] 16 |     block: Block,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 17 |     pos: Pos,
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Placement` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `cube_solver` (bin "cube_solver" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/cube_solver-cdefaf2ea872eca9)
[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" "2a90e19ebc128929839ed601a237f770cf8561e1c05a1e7f2222f05ed3ebf7d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a90e19ebc128929839ed601a237f770cf8561e1c05a1e7f2222f05ed3ebf7d4", kill_on_drop: false }`
[INFO] [stdout] 2a90e19ebc128929839ed601a237f770cf8561e1c05a1e7f2222f05ed3ebf7d4