[INFO] fetching crate metaheuristics-nature 0.23.1...
[INFO] testing metaheuristics-nature-0.23.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate metaheuristics-nature 0.23.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate metaheuristics-nature 0.23.1 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 metaheuristics-nature 0.23.1
[INFO] finished tweaking crates.io crate metaheuristics-nature 0.23.1
[INFO] tweaked toml for crates.io crate metaheuristics-nature 0.23.1 written to /workspace/builds/worker-13/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] running `Command { std: "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" "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] 720efce19402f5b4723b3b4387c9bf7d63e0601bb2589152ba0216bb70107eaa
[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" "720efce19402f5b4723b3b4387c9bf7d63e0601bb2589152ba0216bb70107eaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "720efce19402f5b4723b3b4387c9bf7d63e0601bb2589152ba0216bb70107eaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "720efce19402f5b4723b3b4387c9bf7d63e0601bb2589152ba0216bb70107eaa", kill_on_drop: false }`
[INFO] [stdout] 720efce19402f5b4723b3b4387c9bf7d63e0601bb2589152ba0216bb70107eaa
[INFO] running `Command { std: "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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] adf1a13a4c3c6becdedea894e06964ac42af9a4e56996900743179c471c54feb
[INFO] running `Command { std: "docker" "start" "-a" "adf1a13a4c3c6becdedea894e06964ac42af9a4e56996900743179c471c54feb", kill_on_drop: false }`
[INFO] [stderr]    Compiling matrixmultiply v0.3.2
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling ndarray v0.15.4
[INFO] [stderr]    Compiling metaheuristics-nature v0.23.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.42s
[INFO] running `Command { std: "docker" "inspect" "adf1a13a4c3c6becdedea894e06964ac42af9a4e56996900743179c471c54feb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adf1a13a4c3c6becdedea894e06964ac42af9a4e56996900743179c471c54feb", kill_on_drop: false }`
[INFO] [stdout] adf1a13a4c3c6becdedea894e06964ac42af9a4e56996900743179c471c54feb
[INFO] running `Command { std: "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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 31a3ff15863a2b40a91125c7294a22e2d8105140b698d44a5ac4b2dd348d539a
[INFO] running `Command { std: "docker" "start" "-a" "31a3ff15863a2b40a91125c7294a22e2d8105140b698d44a5ac4b2dd348d539a", kill_on_drop: false }`
[INFO] [stderr]    Compiling metaheuristics-nature v0.23.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.29s
[INFO] running `Command { std: "docker" "inspect" "31a3ff15863a2b40a91125c7294a22e2d8105140b698d44a5ac4b2dd348d539a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31a3ff15863a2b40a91125c7294a22e2d8105140b698d44a5ac4b2dd348d539a", kill_on_drop: false }`
[INFO] [stdout] 31a3ff15863a2b40a91125c7294a22e2d8105140b698d44a5ac4b2dd348d539a
[INFO] running `Command { std: "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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7a15a9a0f9e9628417f80da1cd593d411f2ee97c2c3f4bde5db5e99a89b2e748
[INFO] running `Command { std: "docker" "start" "-a" "7a15a9a0f9e9628417f80da1cd593d411f2ee97c2c3f4bde5db5e99a89b2e748", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/metaheuristics_nature-7678e9dc831d0e56)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::rga ... ok
[INFO] [stdout] test tests::pso ... ok
[INFO] [stdout] test tests::de ... ok
[INFO] [stdout] test tests::tlbo ... ok
[INFO] [stderr]    Doc-tests metaheuristics-nature
[INFO] [stdout] test tests::fa ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 24.86s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test src/obj_func.rs - obj_func::ObjFunc (line 5) ... ok
[INFO] [stdout] test src/utility/fitness.rs - utility::fitness::Fitness (line 9) ... ok
[INFO] [stdout] test src/utility/algorithm.rs - utility::algorithm::Algorithm (line 12) ... ok
[INFO] [stdout] test src/lib.rs - impl_builders (line 82) ... ok
[INFO] [stdout] test src/lib.rs - impl_builders (line 63) ... ok
[INFO] [stdout] test src/utility/mod.rs - utility (line 5) ... ok
[INFO] [stdout] test src/utility/solver_builder.rs - utility::solver_builder::SolverBuilder::callback (line 178) ... ok
[INFO] [stdout] test src/fx_func.rs - fx_func::FxAdaptive (line 62) ... ok
[INFO] [stdout] test src/utility/solver_builder.rs - utility::solver_builder::SolverBuilder::task (line 44) ... ok
[INFO] [stdout] test src/utility/solver_builder.rs - utility::solver_builder::SolverBuilder::adaptive (line 123) ... ok
[INFO] [stdout] test src/utility/solver_builder.rs - utility::solver_builder::SolverBuilder::record (line 76) ... ok
[INFO] [stdout] test src/utility/solver_builder.rs - utility::solver_builder::SolverBuilder::adaptive (line 111) ... ok
[INFO] [stdout] test src/solver.rs - solver::Solver (line 14) ... ok
[INFO] [stdout] test src/utility/solver_builder.rs - utility::solver_builder::SolverBuilder::callback (line 161) ... ok
[INFO] [stdout] test src/fx_func.rs - fx_func::Fx (line 62) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 14.84s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7a15a9a0f9e9628417f80da1cd593d411f2ee97c2c3f4bde5db5e99a89b2e748", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a15a9a0f9e9628417f80da1cd593d411f2ee97c2c3f4bde5db5e99a89b2e748", kill_on_drop: false }`
[INFO] [stdout] 7a15a9a0f9e9628417f80da1cd593d411f2ee97c2c3f4bde5db5e99a89b2e748