[INFO] fetching crate easyneural 0.1.0...
[INFO] testing easyneural-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate easyneural 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate easyneural 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", 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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded if_chain v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b94e3de560dfe1c2f86c2b6d1e9195926ea328b82abb51c47f37c84daa64c0d
[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" "4b94e3de560dfe1c2f86c2b6d1e9195926ea328b82abb51c47f37c84daa64c0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b94e3de560dfe1c2f86c2b6d1e9195926ea328b82abb51c47f37c84daa64c0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b94e3de560dfe1c2f86c2b6d1e9195926ea328b82abb51c47f37c84daa64c0d", kill_on_drop: false }`
[INFO] [stdout] 4b94e3de560dfe1c2f86c2b6d1e9195926ea328b82abb51c47f37c84daa64c0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df9e27e10cad783c5ec70eb1242b2fb8501ae1502445ba0c7ff419282e6d2d12
[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" "df9e27e10cad783c5ec70eb1242b2fb8501ae1502445ba0c7ff419282e6d2d12", kill_on_drop: false }`
[INFO] [stderr]    Compiling if_chain v1.0.1
[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 2.87s
[INFO] running `Command { std: "docker" "inspect" "df9e27e10cad783c5ec70eb1242b2fb8501ae1502445ba0c7ff419282e6d2d12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df9e27e10cad783c5ec70eb1242b2fb8501ae1502445ba0c7ff419282e6d2d12", kill_on_drop: false }`
[INFO] [stdout] df9e27e10cad783c5ec70eb1242b2fb8501ae1502445ba0c7ff419282e6d2d12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5bfb483ce8febf4461afa900d2ee00a2f06a6e64360eb0ac4178e6661028cc38
[INFO] running `Command { std: "docker" "start" "-a" "5bfb483ce8febf4461afa900d2ee00a2f06a6e64360eb0ac4178e6661028cc38", 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 2.91s
[INFO] running `Command { std: "docker" "inspect" "5bfb483ce8febf4461afa900d2ee00a2f06a6e64360eb0ac4178e6661028cc38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bfb483ce8febf4461afa900d2ee00a2f06a6e64360eb0ac4178e6661028cc38", kill_on_drop: false }`
[INFO] [stdout] 5bfb483ce8febf4461afa900d2ee00a2f06a6e64360eb0ac4178e6661028cc38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] af533d941e95822d47cd1de7a26bd0adee1c7e13c1a9d23aea5ca2f46c2ef8ac
[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" "af533d941e95822d47cd1de7a26bd0adee1c7e13c1a9d23aea5ca2f46c2ef8ac", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `parents`
[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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/easyneural-5964617892a241bb
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test genetic::tests::test_crossover ... ok
[INFO] [stdout] test network::tests::calculations_with_custom_activator ... ok
[INFO] [stdout] test simulation::tests::evolved_parents_are_different ... ok
[INFO] [stdout] test simulation::tests::check_population_size ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_no_single_predominance ... ok
[INFO] [stdout] test simulation::tests::population_too_small ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_just_two ... ok
[INFO] [stdout] test network::tests::calculations_with_default_activation_function ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_overwrite_one ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_pick_best_reversed ... 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 ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/integration_tests-060e497723cb689d
[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 0.05s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[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 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests easyneural
[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" "af533d941e95822d47cd1de7a26bd0adee1c7e13c1a9d23aea5ca2f46c2ef8ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af533d941e95822d47cd1de7a26bd0adee1c7e13c1a9d23aea5ca2f46c2ef8ac", kill_on_drop: false }`
[INFO] [stdout] af533d941e95822d47cd1de7a26bd0adee1c7e13c1a9d23aea5ca2f46c2ef8ac