[INFO] fetching crate knn_classifier 0.1.2...
[INFO] testing knn_classifier-0.1.2 against 1.90.0 for beta-1.91-3
[INFO] extracting crate knn_classifier 0.1.2 into /workspace/builds/worker-7-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate knn_classifier 0.1.2 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2dcadfab867ea02688f19ea90b636fddf990325a000de98bcaf65e0292a200a0
[INFO] running `Command { std: "docker" "start" "-a" "2dcadfab867ea02688f19ea90b636fddf990325a000de98bcaf65e0292a200a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2dcadfab867ea02688f19ea90b636fddf990325a000de98bcaf65e0292a200a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2dcadfab867ea02688f19ea90b636fddf990325a000de98bcaf65e0292a200a0", kill_on_drop: false }`
[INFO] [stdout] 2dcadfab867ea02688f19ea90b636fddf990325a000de98bcaf65e0292a200a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd2f60f315d0d14e96cf9fd506e32632a08cb2cb599cd23a097bd968ccc7f707
[INFO] running `Command { std: "docker" "start" "-a" "dd2f60f315d0d14e96cf9fd506e32632a08cb2cb599cd23a097bd968ccc7f707", 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 0.95s
[INFO] running `Command { std: "docker" "inspect" "dd2f60f315d0d14e96cf9fd506e32632a08cb2cb599cd23a097bd968ccc7f707", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd2f60f315d0d14e96cf9fd506e32632a08cb2cb599cd23a097bd968ccc7f707", kill_on_drop: false }`
[INFO] [stdout] dd2f60f315d0d14e96cf9fd506e32632a08cb2cb599cd23a097bd968ccc7f707
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] acdffed0c0dffdfcea9ed4d8063d6e74885e9d12e21f35b241d9ece4fc807738
[INFO] running `Command { std: "docker" "start" "-a" "acdffed0c0dffdfcea9ed4d8063d6e74885e9d12e21f35b241d9ece4fc807738", 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 0.73s
[INFO] running `Command { std: "docker" "inspect" "acdffed0c0dffdfcea9ed4d8063d6e74885e9d12e21f35b241d9ece4fc807738", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acdffed0c0dffdfcea9ed4d8063d6e74885e9d12e21f35b241d9ece4fc807738", kill_on_drop: false }`
[INFO] [stdout] acdffed0c0dffdfcea9ed4d8063d6e74885e9d12e21f35b241d9ece4fc807738
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cf6be451d9a0f49f3b2fa8422caa9fb8cb7cd6937565f404bed522709a33a168
[INFO] running `Command { std: "docker" "start" "-a" "cf6be451d9a0f49f3b2fa8422caa9fb8cb7cd6937565f404bed522709a33a168", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/knn_classifier-d355c82852925454)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[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 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/knn_classifier-e745d92ff6fddc66)
[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] [stderr]    Doc-tests knn_classifier
[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" "cf6be451d9a0f49f3b2fa8422caa9fb8cb7cd6937565f404bed522709a33a168", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf6be451d9a0f49f3b2fa8422caa9fb8cb7cd6937565f404bed522709a33a168", kill_on_drop: false }`
[INFO] [stdout] cf6be451d9a0f49f3b2fa8422caa9fb8cb7cd6937565f404bed522709a33a168