[INFO] updating cached repository https://github.com/segura2010/Rust-NeuralNet-IC
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 83b550e0ba13670dcae19ea5b998eede7448edb8
[INFO] testing segura2010/Rust-NeuralNet-IC against beta-2020-07-24 for beta-1.46-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsegura2010%2FRust-NeuralNet-IC" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] [stderr] Checking out files: 100% (28/28)   
Checking out files: 100% (28/28), done.
[INFO] validating manifest of git repo https://github.com/segura2010/Rust-NeuralNet-IC on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/segura2010/Rust-NeuralNet-IC
[INFO] finished tweaking git repo https://github.com/segura2010/Rust-NeuralNet-IC
[INFO] tweaked toml for git repo https://github.com/segura2010/Rust-NeuralNet-IC written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/segura2010/Rust-NeuralNet-IC already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-5/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b0f00e983a3a8a0f9dfd99ecdfcdfb1514545fc5ef58ae70a80940b4b356979
[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" "5b0f00e983a3a8a0f9dfd99ecdfcdfb1514545fc5ef58ae70a80940b4b356979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b0f00e983a3a8a0f9dfd99ecdfcdfb1514545fc5ef58ae70a80940b4b356979", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b0f00e983a3a8a0f9dfd99ecdfcdfb1514545fc5ef58ae70a80940b4b356979", kill_on_drop: false }`
[INFO] [stdout] 5b0f00e983a3a8a0f9dfd99ecdfcdfb1514545fc5ef58ae70a80940b4b356979
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe2225b3bff61d881c5ae4479565198cca830a364e197664149a46ae53d09466
[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" "fe2225b3bff61d881c5ae4479565198cca830a364e197664149a46ae53d09466", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling redneuronal v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `IsaacRng` in `rand`
[INFO] [stdout]    --> src/main.rs:656:22
[INFO] [stdout]     |
[INFO] [stdout] 656 |     let mut rng = rand::IsaacRng::new_unseeded();
[INFO] [stdout]     |                         ^^^^^^^^ could not find `IsaacRng` in `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `usize: std::ops::Neg` is not satisfied
[INFO] [stdout]    --> src/main.rs:484:34
[INFO] [stdout]     |
[INFO] [stdout] 484 |                 let mut pesoAnterior = -1;
[INFO] [stdout]     |                                        ^^ the trait `std::ops::Neg` is not implemented for `usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `redneuronal`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "fe2225b3bff61d881c5ae4479565198cca830a364e197664149a46ae53d09466", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe2225b3bff61d881c5ae4479565198cca830a364e197664149a46ae53d09466", kill_on_drop: false }`
[INFO] [stdout] fe2225b3bff61d881c5ae4479565198cca830a364e197664149a46ae53d09466