[INFO] fetching crate easyneural 0.1.0...
[INFO] testing easyneural-0.1.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate easyneural 0.1.0 into /workspace/builds/worker-5-tc1/source
[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-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate easyneural 0.1.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 26 packages to latest compatible versions
[INFO] [stderr]       Adding approx v0.3.2 (available: v0.5.1)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.9.1)
[INFO] [stderr]       Adding rand_distr v0.2.2 (available: v0.5.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7fcffb985b70a1feb6cfe88888ce1efbc60f2580d1de477a150d30c6efd54695
[INFO] running `Command { std: "docker" "start" "-a" "7fcffb985b70a1feb6cfe88888ce1efbc60f2580d1de477a150d30c6efd54695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fcffb985b70a1feb6cfe88888ce1efbc60f2580d1de477a150d30c6efd54695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fcffb985b70a1feb6cfe88888ce1efbc60f2580d1de477a150d30c6efd54695", kill_on_drop: false }`
[INFO] [stdout] 7fcffb985b70a1feb6cfe88888ce1efbc60f2580d1de477a150d30c6efd54695
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 47cd2b69c3cafb31f6ec09f12aa25d114ca905112eca4420f8b62a83f50d28cc
[INFO] running `Command { std: "docker" "start" "-a" "47cd2b69c3cafb31f6ec09f12aa25d114ca905112eca4420f8b62a83f50d28cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling ryu v1.0.20
[INFO] [stderr]    Compiling itoa v1.0.15
[INFO] [stderr]    Compiling if_chain v1.0.2
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling easyneural v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.05s
[INFO] running `Command { std: "docker" "inspect" "47cd2b69c3cafb31f6ec09f12aa25d114ca905112eca4420f8b62a83f50d28cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47cd2b69c3cafb31f6ec09f12aa25d114ca905112eca4420f8b62a83f50d28cc", kill_on_drop: false }`
[INFO] [stdout] 47cd2b69c3cafb31f6ec09f12aa25d114ca905112eca4420f8b62a83f50d28cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 386558bf5a9a1d80d618dc863709b44b17c6d461881e519f12ffec66049681ed
[INFO] running `Command { std: "docker" "start" "-a" "386558bf5a9a1d80d618dc863709b44b17c6d461881e519f12ffec66049681ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[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: struct `MutationRandomizer` is never constructed
[INFO] [stdout]    --> src/genetic.rs:128:27
[INFO] [stdout]     |
[INFO] [stdout] 128 |         pub(crate) struct MutationRandomizer {
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.08s
[INFO] running `Command { std: "docker" "inspect" "386558bf5a9a1d80d618dc863709b44b17c6d461881e519f12ffec66049681ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "386558bf5a9a1d80d618dc863709b44b17c6d461881e519f12ffec66049681ed", kill_on_drop: false }`
[INFO] [stdout] 386558bf5a9a1d80d618dc863709b44b17c6d461881e519f12ffec66049681ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 464f7ebe4e6b1acdcbea3a750066291062b9d5705df9cde1b10485406cf82775
[INFO] running `Command { std: "docker" "start" "-a" "464f7ebe4e6b1acdcbea3a750066291062b9d5705df9cde1b10485406cf82775", 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: `easyneural` (test "integration_tests") generated 1 warning
[INFO] [stderr] warning: struct `MutationRandomizer` is never constructed
[INFO] [stderr]    --> src/genetic.rs:128:27
[INFO] [stderr]     |
[INFO] [stderr] 128 |         pub(crate) struct MutationRandomizer {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `easyneural` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/easyneural-66d02fd492597d6b)
[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::check_population_size ... 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::evolved_parents_are_different ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_pick_best_reversed ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_just_two ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_no_single_predominance ... ok
[INFO] [stdout] test network::tests::structure ... ok
[INFO] [stdout] test simulation::tests::selecting_parents_overwrite_two ... 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; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/integration_tests-5bd0dc24f8811df6)
[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 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "464f7ebe4e6b1acdcbea3a750066291062b9d5705df9cde1b10485406cf82775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "464f7ebe4e6b1acdcbea3a750066291062b9d5705df9cde1b10485406cf82775", kill_on_drop: false }`
[INFO] [stdout] 464f7ebe4e6b1acdcbea3a750066291062b9d5705df9cde1b10485406cf82775