[INFO] crate easyneural 0.1.0 is already in cache
[INFO] testing easyneural-0.1.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate easyneural 0.1.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate easyneural 0.1.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] 72c3987b33e6ac5601f91028e946755e79a494271054ae02d017e42102ba675b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "72c3987b33e6ac5601f91028e946755e79a494271054ae02d017e42102ba675b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling if_chain v1.0.0
[INFO] [stderr]    Compiling rand v0.7.3
[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 3.62s
[INFO] running `"docker" "inspect" "72c3987b33e6ac5601f91028e946755e79a494271054ae02d017e42102ba675b"`
[INFO] running `"docker" "rm" "-f" "72c3987b33e6ac5601f91028e946755e79a494271054ae02d017e42102ba675b"`
[INFO] [stdout] 72c3987b33e6ac5601f91028e946755e79a494271054ae02d017e42102ba675b
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0f599fa8c0aec092dc8f3e1c673b7cd1c6124803359868ccce6170f9761250a9
[INFO] running `"docker" "start" "-a" "0f599fa8c0aec092dc8f3e1c673b7cd1c6124803359868ccce6170f9761250a9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling easyneural v0.1.0 (/opt/rustwide/workdir)
[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 3.28s
[INFO] running `"docker" "inspect" "0f599fa8c0aec092dc8f3e1c673b7cd1c6124803359868ccce6170f9761250a9"`
[INFO] running `"docker" "rm" "-f" "0f599fa8c0aec092dc8f3e1c673b7cd1c6124803359868ccce6170f9761250a9"`
[INFO] [stdout] 0f599fa8c0aec092dc8f3e1c673b7cd1c6124803359868ccce6170f9761250a9
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stdout] 845004b39c221926a821307325f105b2ecf8c34a8f4a1f7c728e53c2cb9e2621
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "845004b39c221926a821307325f105b2ecf8c34a8f4a1f7c728e53c2cb9e2621"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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 0.20s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/easyneural-c2d8011db9f0b647
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test network::tests::calculations_with_custom_activator ... ok
[INFO] [stdout] test genetic::tests::test_crossover ... ok
[INFO] [stdout] test simulation::tests::population_too_small ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_no_single_predominance ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_overwrite_two ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_just_two ... ok
[INFO] [stdout] test simulation::tests::check_population_size ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_pick_best_reversed ... ok
[INFO] [stdout] test network::tests::calculations_with_default_activation_function ... ok
[INFO] [stdout] test network::tests::structure ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_overwrite_one ... ok
[INFO] [stdout] test simulation::tests::evolved_parents_are_different ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_pick_best ... ok
[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
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/integration_tests-e41df572a86808da
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_run_training_session ... ok
[INFO] [stderr]    Doc-tests easyneural
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "845004b39c221926a821307325f105b2ecf8c34a8f4a1f7c728e53c2cb9e2621"`
[INFO] running `"docker" "rm" "-f" "845004b39c221926a821307325f105b2ecf8c34a8f4a1f7c728e53c2cb9e2621"`
[INFO] [stdout] 845004b39c221926a821307325f105b2ecf8c34a8f4a1f7c728e53c2cb9e2621