[INFO] fetching crate easyneural 0.1.0...
[INFO] testing easyneural-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate easyneural 0.1.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate easyneural 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate easyneural 0.1.0
[INFO] finished tweaking crates.io crate easyneural 0.1.0
[INFO] tweaked toml for crates.io crate easyneural 0.1.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8d90dd136b4e85e83ed3c278945209561d24b40cb2524f1a9dffd407da5acb27
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8d90dd136b4e85e83ed3c278945209561d24b40cb2524f1a9dffd407da5acb27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8d90dd136b4e85e83ed3c278945209561d24b40cb2524f1a9dffd407da5acb27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d90dd136b4e85e83ed3c278945209561d24b40cb2524f1a9dffd407da5acb27", kill_on_drop: false }`
[INFO] [stdout] 8d90dd136b4e85e83ed3c278945209561d24b40cb2524f1a9dffd407da5acb27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9c2f46d50153606a7fb7a71f0616aed41e8f03b58f0a006f1f046b87212404b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e9c2f46d50153606a7fb7a71f0616aed41e8f03b58f0a006f1f046b87212404b", kill_on_drop: false }`
[INFO] [stderr]    Compiling if_chain v1.0.2
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling easyneural v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.45s
[INFO] running `Command { std: "docker" "inspect" "e9c2f46d50153606a7fb7a71f0616aed41e8f03b58f0a006f1f046b87212404b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9c2f46d50153606a7fb7a71f0616aed41e8f03b58f0a006f1f046b87212404b", kill_on_drop: false }`
[INFO] [stdout] e9c2f46d50153606a7fb7a71f0616aed41e8f03b58f0a006f1f046b87212404b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c544c7565aed2b9f90a2e5ddfdad5f685f176bb76d92c0831f28aa52363f87d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3c544c7565aed2b9f90a2e5ddfdad5f685f176bb76d92c0831f28aa52363f87d", kill_on_drop: false }`
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling easyneural v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `parents`
[INFO] [stdout]   --> tests/integration_tests.rs:64:19
[INFO] [stdout]    |
[INFO] [stdout] 64 |         if let Ok(parents) = session.run(Finish::Occurences(SIMULATION_ROUNDS));
[INFO] [stdout]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parents`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.12s
[INFO] running `Command { std: "docker" "inspect" "3c544c7565aed2b9f90a2e5ddfdad5f685f176bb76d92c0831f28aa52363f87d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c544c7565aed2b9f90a2e5ddfdad5f685f176bb76d92c0831f28aa52363f87d", kill_on_drop: false }`
[INFO] [stdout] 3c544c7565aed2b9f90a2e5ddfdad5f685f176bb76d92c0831f28aa52363f87d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 753e0906053e4c72af862890171129271cd84a0fdad899ec2f2ac5bf7446628c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "753e0906053e4c72af862890171129271cd84a0fdad899ec2f2ac5bf7446628c", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `parents`
[INFO] [stdout] running 14 tests
[INFO] [stderr]   --> tests/integration_tests.rs:64:19
[INFO] [stderr]    |
[INFO] [stderr] 64 |         if let Ok(parents) = session.run(Finish::Occurences(SIMULATION_ROUNDS));
[INFO] [stderr]    |                   ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parents`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `easyneural` (test "integration_tests") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/easyneural-29635f747a0c83ea)
[INFO] [stdout] test genetic::tests::test_crossover ... ok
[INFO] [stdout] test simulation::tests::population_too_small ... ok
[INFO] [stdout] test network::tests::calculations_with_custom_activator ... ok
[INFO] [stdout] test network::tests::calculations_with_default_activation_function ... ok
[INFO] [stdout] test simulation::tests::check_population_size ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_just_two ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_overwrite_one ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_no_single_predominance ... ok
[INFO] [stdout] test simulation::tests::evolved_parents_are_different ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_overwrite_two ... ok
[INFO] [stdout] test network::tests::structure ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_pick_best_reversed ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_pick_best ... ok
[INFO] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-b1302d99dac050ba)
[INFO] [stdout] test genetic::tests::test_mutate ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests easyneural
[INFO] [stdout] test test_run_training_session ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[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" "753e0906053e4c72af862890171129271cd84a0fdad899ec2f2ac5bf7446628c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "753e0906053e4c72af862890171129271cd84a0fdad899ec2f2ac5bf7446628c", kill_on_drop: false }`
[INFO] [stdout] 753e0906053e4c72af862890171129271cd84a0fdad899ec2f2ac5bf7446628c