[INFO] cloning repository https://github.com/raagnair/leetcrab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/raagnair/leetcrab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraagnair%2Fleetcrab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraagnair%2Fleetcrab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2cd2419486187e0da3ac28f16659e7abef27572a
[INFO] testing raagnair/leetcrab 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%2Fraagnair%2Fleetcrab" "/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/raagnair/leetcrab
[INFO] finished tweaking git repo https://github.com/raagnair/leetcrab
[INFO] tweaked toml for git repo https://github.com/raagnair/leetcrab written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/raagnair/leetcrab 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/raagnair/leetcrab 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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfa87f223adaa21e9a90566ecc560adea0ec27a134065c54e4a85e426986e025
[INFO] running `Command { std: "docker" "start" "-a" "bfa87f223adaa21e9a90566ecc560adea0ec27a134065c54e4a85e426986e025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfa87f223adaa21e9a90566ecc560adea0ec27a134065c54e4a85e426986e025", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfa87f223adaa21e9a90566ecc560adea0ec27a134065c54e4a85e426986e025", kill_on_drop: false }`
[INFO] [stdout] bfa87f223adaa21e9a90566ecc560adea0ec27a134065c54e4a85e426986e025
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca11b81b35055fc3af51180eca491418f0a9f388551e5d1bb6a5a5256fa95a3e
[INFO] running `Command { std: "docker" "start" "-a" "ca11b81b35055fc3af51180eca491418f0a9f388551e5d1bb6a5a5256fa95a3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcrab v0.71.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `last_iter` is never read
[INFO] [stdout]   --> src/solutions/s0017_letter_combinations.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut last_iter = vec![];
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "ca11b81b35055fc3af51180eca491418f0a9f388551e5d1bb6a5a5256fa95a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca11b81b35055fc3af51180eca491418f0a9f388551e5d1bb6a5a5256fa95a3e", kill_on_drop: false }`
[INFO] [stdout] ca11b81b35055fc3af51180eca491418f0a9f388551e5d1bb6a5a5256fa95a3e
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a28c98a1e114a04c0a1b569e7396b433b3786650d249f751bc701f40a3a1b0c2
[INFO] running `Command { std: "docker" "start" "-a" "a28c98a1e114a04c0a1b569e7396b433b3786650d249f751bc701f40a3a1b0c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling leetcrab v0.71.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `last_iter` is never read
[INFO] [stdout]   --> src/solutions/s0017_letter_combinations.rs:33:13
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let mut last_iter = vec![];
[INFO] [stdout]    |             ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (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" "a28c98a1e114a04c0a1b569e7396b433b3786650d249f751bc701f40a3a1b0c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a28c98a1e114a04c0a1b569e7396b433b3786650d249f751bc701f40a3a1b0c2", kill_on_drop: false }`
[INFO] [stdout] a28c98a1e114a04c0a1b569e7396b433b3786650d249f751bc701f40a3a1b0c2
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 86eb35017c720daffd060c559412cbebf05edd335885606fbada0a8acb5ddbe3
[INFO] running `Command { std: "docker" "start" "-a" "86eb35017c720daffd060c559412cbebf05edd335885606fbada0a8acb5ddbe3", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `last_iter` is never read
[INFO] [stdout] 
[INFO] [stderr]   --> src/solutions/s0017_letter_combinations.rs:33:13
[INFO] [stdout] running 0 tests
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 33 |     let mut last_iter = vec![];
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `leetcrab` (bin "leetcrab" 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/leetcrab-895a20a600088b35)
[INFO] running `Command { std: "docker" "inspect" "86eb35017c720daffd060c559412cbebf05edd335885606fbada0a8acb5ddbe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86eb35017c720daffd060c559412cbebf05edd335885606fbada0a8acb5ddbe3", kill_on_drop: false }`
[INFO] [stdout] 86eb35017c720daffd060c559412cbebf05edd335885606fbada0a8acb5ddbe3
