[INFO] fetching crate learntk 0.3.0...
[INFO] testing learntk-0.3.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate learntk 0.3.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate learntk 0.3.0
[INFO] finished tweaking crates.io crate learntk 0.3.0
[INFO] tweaked toml for crates.io crate learntk 0.3.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate learntk 0.3.0 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 41 packages to latest compatible versions
[INFO] [stderr]       Adding indicatif v0.17.11 (available: v0.18.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded console v0.15.11
[INFO] [stderr]   Downloaded indicatif v0.17.11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9d42bdf64bf7960dd91f2254a9878ff2513946c1ad99ee3a303978a7a0a15d03
[INFO] running `Command { std: "docker" "start" "-a" "9d42bdf64bf7960dd91f2254a9878ff2513946c1ad99ee3a303978a7a0a15d03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d42bdf64bf7960dd91f2254a9878ff2513946c1ad99ee3a303978a7a0a15d03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d42bdf64bf7960dd91f2254a9878ff2513946c1ad99ee3a303978a7a0a15d03", kill_on_drop: false }`
[INFO] [stdout] 9d42bdf64bf7960dd91f2254a9878ff2513946c1ad99ee3a303978a7a0a15d03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5b96b389cd5190fbcb4a0b6856d178d63a58db19b44ce9f4cdbbaa518201592c
[INFO] running `Command { std: "docker" "start" "-a" "5b96b389cd5190fbcb4a0b6856d178d63a58db19b44ce9f4cdbbaa518201592c", kill_on_drop: false }`
[INFO] [stderr]    Compiling zerocopy v0.8.27
[INFO] [stderr]    Compiling cfg-if v1.0.3
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling indicatif v0.17.11
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling learntk v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.69s
[INFO] running `Command { std: "docker" "inspect" "5b96b389cd5190fbcb4a0b6856d178d63a58db19b44ce9f4cdbbaa518201592c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b96b389cd5190fbcb4a0b6856d178d63a58db19b44ce9f4cdbbaa518201592c", kill_on_drop: false }`
[INFO] [stdout] 5b96b389cd5190fbcb4a0b6856d178d63a58db19b44ce9f4cdbbaa518201592c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] b453a105778f4dbed551ab40e90f58b842f7cedbfb39296627c3659ef4b663d4
[INFO] running `Command { std: "docker" "start" "-a" "b453a105778f4dbed551ab40e90f58b842f7cedbfb39296627c3659ef4b663d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling learntk v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "b453a105778f4dbed551ab40e90f58b842f7cedbfb39296627c3659ef4b663d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b453a105778f4dbed551ab40e90f58b842f7cedbfb39296627c3659ef4b663d4", kill_on_drop: false }`
[INFO] [stdout] b453a105778f4dbed551ab40e90f58b842f7cedbfb39296627c3659ef4b663d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 0612fa8a3a7f39a5db76c7d7ecd3a9e9ce90517308d4fba1ae93275f1c3b74dd
[INFO] running `Command { std: "docker" "start" "-a" "0612fa8a3a7f39a5db76c7d7ecd3a9e9ce90517308d4fba1ae93275f1c3b74dd", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/learntk-a57887d43ad6f740)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test neural::import_dataset ... ok
[INFO] [stdout] test linalg::multiply_matrix_and_vector ... ok
[INFO] [stdout] test neural::evaluate_layer ... ok
[INFO] [stdout] test neural::train_network ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 14.17s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests learntk
[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" "0612fa8a3a7f39a5db76c7d7ecd3a9e9ce90517308d4fba1ae93275f1c3b74dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0612fa8a3a7f39a5db76c7d7ecd3a9e9ce90517308d4fba1ae93275f1c3b74dd", kill_on_drop: false }`
[INFO] [stdout] 0612fa8a3a7f39a5db76c7d7ecd3a9e9ce90517308d4fba1ae93275f1c3b74dd