[INFO] fetching crate knn_classifier 0.1.2...
[INFO] testing knn_classifier-0.1.2 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate knn_classifier 0.1.2 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate knn_classifier 0.1.2
[INFO] finished tweaking crates.io crate knn_classifier 0.1.2
[INFO] tweaked toml for crates.io crate knn_classifier 0.1.2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate knn_classifier 0.1.2 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 crates.io crate knn_classifier 0.1.2 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 84281c2426561a6473bdaf973378c39b8c7bb2a2a911dd45021e3bc66c23d98a
[INFO] running `Command { std: "docker" "start" "-a" "84281c2426561a6473bdaf973378c39b8c7bb2a2a911dd45021e3bc66c23d98a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84281c2426561a6473bdaf973378c39b8c7bb2a2a911dd45021e3bc66c23d98a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84281c2426561a6473bdaf973378c39b8c7bb2a2a911dd45021e3bc66c23d98a", kill_on_drop: false }`
[INFO] [stdout] 84281c2426561a6473bdaf973378c39b8c7bb2a2a911dd45021e3bc66c23d98a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9f680b61442853ea92627b334e9105524baed588e84e4914b58bd90038bb8bd0
[INFO] running `Command { std: "docker" "start" "-a" "9f680b61442853ea92627b334e9105524baed588e84e4914b58bd90038bb8bd0", kill_on_drop: false }`
[INFO] [stderr]    Compiling knn_classifier v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "9f680b61442853ea92627b334e9105524baed588e84e4914b58bd90038bb8bd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f680b61442853ea92627b334e9105524baed588e84e4914b58bd90038bb8bd0", kill_on_drop: false }`
[INFO] [stdout] 9f680b61442853ea92627b334e9105524baed588e84e4914b58bd90038bb8bd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] dad36cc24d46786e23eb5735540e334dbc9f1baac9cfca670c3e0e03ac032087
[INFO] running `Command { std: "docker" "start" "-a" "dad36cc24d46786e23eb5735540e334dbc9f1baac9cfca670c3e0e03ac032087", kill_on_drop: false }`
[INFO] [stderr]    Compiling knn_classifier v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "dad36cc24d46786e23eb5735540e334dbc9f1baac9cfca670c3e0e03ac032087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dad36cc24d46786e23eb5735540e334dbc9f1baac9cfca670c3e0e03ac032087", kill_on_drop: false }`
[INFO] [stdout] dad36cc24d46786e23eb5735540e334dbc9f1baac9cfca670c3e0e03ac032087
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 7e7bea0fb27639c0be14635779f187402fd0e5fa0d712f7d24e9064caf7bf446
[INFO] running `Command { std: "docker" "start" "-a" "7e7bea0fb27639c0be14635779f187402fd0e5fa0d712f7d24e9064caf7bf446", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/knn_classifier-a44066ef63a7db1c)
[INFO] [stdout] running 4 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/knn_classifier-523cd924e13717d5)
[INFO] [stdout] test tests::test_knn1 ... ok
[INFO] [stdout] test tests::test_knn2 ... ok
[INFO] [stdout] test tests::test_knn3 ... ok
[INFO] [stdout] test tests::test_to_csv ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests knn_classifier
[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] [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" "7e7bea0fb27639c0be14635779f187402fd0e5fa0d712f7d24e9064caf7bf446", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e7bea0fb27639c0be14635779f187402fd0e5fa0d712f7d24e9064caf7bf446", kill_on_drop: false }`
[INFO] [stdout] 7e7bea0fb27639c0be14635779f187402fd0e5fa0d712f7d24e9064caf7bf446