[INFO] cloning repository https://github.com/tylerreisinger/neural-network-deep-learning [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tylerreisinger/neural-network-deep-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftylerreisinger%2Fneural-network-deep-learning", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftylerreisinger%2Fneural-network-deep-learning'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e9b993dc16ba212952631e2fa08a1b63ac1c99fb [INFO] testing tylerreisinger/neural-network-deep-learning against beta-2022-04-10 for beta-1.61-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftylerreisinger%2Fneural-network-deep-learning" "/workspace/builds/worker-87/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-87/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tylerreisinger/neural-network-deep-learning on toolchain beta-2022-04-10 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tylerreisinger/neural-network-deep-learning [INFO] finished tweaking git repo https://github.com/tylerreisinger/neural-network-deep-learning [INFO] tweaked toml for git repo https://github.com/tylerreisinger/neural-network-deep-learning written to /workspace/builds/worker-87/source/Cargo.toml [INFO] crate git repo https://github.com/tylerreisinger/neural-network-deep-learning already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0dc543cbde916b48d60562d1e75926a97753ff7c99b0827477903210876ea903 [INFO] running `Command { std: "docker" "start" "-a" "0dc543cbde916b48d60562d1e75926a97753ff7c99b0827477903210876ea903", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0dc543cbde916b48d60562d1e75926a97753ff7c99b0827477903210876ea903", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0dc543cbde916b48d60562d1e75926a97753ff7c99b0827477903210876ea903", kill_on_drop: false }` [INFO] [stdout] 0dc543cbde916b48d60562d1e75926a97753ff7c99b0827477903210876ea903 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7557d8f24e77dc83fe7c0034b044b4e435b8cd075a3d9eda7e7ecc0ea5f433df [INFO] running `Command { std: "docker" "start" "-a" "7557d8f24e77dc83fe7c0034b044b4e435b8cd075a3d9eda7e7ecc0ea5f433df", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.21 [INFO] [stderr] Compiling byteorder v1.0.0 [INFO] [stderr] Compiling rand v0.3.15 [INFO] [stderr] Compiling neural_net v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/mnist/idx.rs:150:44 [INFO] [stdout] | [INFO] [stdout] 150 | const BUF_READER_CAPACITY: usize = (1 << 20); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 150 - const BUF_READER_CAPACITY: usize = (1 << 20); [INFO] [stdout] 150 + const BUF_READER_CAPACITY: usize = 1 << 20; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/mnist/error.rs:48:32 [INFO] [stdout] | [INFO] [stdout] 48 | fn cause(&self) -> Option<&Error> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 48 - fn cause(&self) -> Option<&Error> { [INFO] [stdout] 48 + fn cause(&self) -> Option<&dyn Error> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/mnist/error.rs:28:38 [INFO] [stdout] | [INFO] [stdout] 28 | write!(f, "{}", self.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/mnist/error.rs:30:38 [INFO] [stdout] | [INFO] [stdout] 30 | write!(f, "{}", self.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/mnist/error.rs:40:44 [INFO] [stdout] | [INFO] [stdout] 40 | MnistError::Io(ref err) => err.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `labels` [INFO] [stdout] --> src/main.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let labels = [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `images` [INFO] [stdout] --> src/main.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let images = [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_images` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `num_neurons` [INFO] [stdout] --> src/net/geom.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | num_neurons: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Geometry` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] --> src/net/geom.rs:3:10 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Clone, Debug)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.86s [INFO] running `Command { std: "docker" "inspect" "7557d8f24e77dc83fe7c0034b044b4e435b8cd075a3d9eda7e7ecc0ea5f433df", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7557d8f24e77dc83fe7c0034b044b4e435b8cd075a3d9eda7e7ecc0ea5f433df", kill_on_drop: false }` [INFO] [stdout] 7557d8f24e77dc83fe7c0034b044b4e435b8cd075a3d9eda7e7ecc0ea5f433df [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 43268c608f07ceb3534656934e28b6b7ee9b57a7331077d8137f306b8c2b0a64 [INFO] running `Command { std: "docker" "start" "-a" "43268c608f07ceb3534656934e28b6b7ee9b57a7331077d8137f306b8c2b0a64", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling neural_net v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around assigned value [INFO] [stdout] --> src/mnist/idx.rs:150:44 [INFO] [stdout] | [INFO] [stdout] 150 | const BUF_READER_CAPACITY: usize = (1 << 20); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 150 - const BUF_READER_CAPACITY: usize = (1 << 20); [INFO] [stdout] 150 + const BUF_READER_CAPACITY: usize = 1 << 20; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::*` [INFO] [stdout] --> src/mnist/idx.rs:402:9 [INFO] [stdout] | [INFO] [stdout] 402 | use super::*; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/mnist/error.rs:48:32 [INFO] [stdout] | [INFO] [stdout] 48 | fn cause(&self) -> Option<&Error> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 48 - fn cause(&self) -> Option<&Error> { [INFO] [stdout] 48 + fn cause(&self) -> Option<&dyn Error> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/mnist/error.rs:28:38 [INFO] [stdout] | [INFO] [stdout] 28 | write!(f, "{}", self.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/mnist/error.rs:30:38 [INFO] [stdout] | [INFO] [stdout] 30 | write!(f, "{}", self.description()), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stdout] --> src/mnist/error.rs:40:44 [INFO] [stdout] | [INFO] [stdout] 40 | MnistError::Io(ref err) => err.description(), [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `labels` [INFO] [stdout] --> src/main.rs:12:9 [INFO] [stdout] | [INFO] [stdout] 12 | let labels = [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `images` [INFO] [stdout] --> src/main.rs:14:9 [INFO] [stdout] | [INFO] [stdout] 14 | let images = [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_images` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `num_neurons` [INFO] [stdout] --> src/net/geom.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | num_neurons: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] note: `Geometry` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] --> src/net/geom.rs:3:10 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Clone, Debug)] [INFO] [stdout] | ^^^^^ ^^^^^ [INFO] [stdout] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.76s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/neural_net-df58355ce5688778) [INFO] running `Command { std: "docker" "inspect" "43268c608f07ceb3534656934e28b6b7ee9b57a7331077d8137f306b8c2b0a64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "43268c608f07ceb3534656934e28b6b7ee9b57a7331077d8137f306b8c2b0a64", kill_on_drop: false }` [INFO] [stdout] 43268c608f07ceb3534656934e28b6b7ee9b57a7331077d8137f306b8c2b0a64 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 4b8288e7f06b792460b4f2927bc555693518cd86d11bc534db063d9adbeb8d42 [INFO] running `Command { std: "docker" "start" "-a" "4b8288e7f06b792460b4f2927bc555693518cd86d11bc534db063d9adbeb8d42", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unnecessary parentheses around assigned value [INFO] [stdout] [INFO] [stderr] --> src/mnist/idx.rs:150:44 [INFO] [stdout] running 0 tests [INFO] [stderr] | [INFO] [stdout] [INFO] [stderr] 150 | const BUF_READER_CAPACITY: usize = (1 << 20); [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stderr] | ^ ^ [INFO] [stdout] [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 150 - const BUF_READER_CAPACITY: usize = (1 << 20); [INFO] [stderr] 150 + const BUF_READER_CAPACITY: usize = 1 << 20; [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/mnist/idx.rs:402:9 [INFO] [stderr] | [INFO] [stderr] 402 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/mnist/error.rs:48:32 [INFO] [stderr] | [INFO] [stderr] 48 | fn cause(&self) -> Option<&Error> { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 48 - fn cause(&self) -> Option<&Error> { [INFO] [stderr] 48 + fn cause(&self) -> Option<&dyn Error> { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stderr] --> src/mnist/error.rs:28:38 [INFO] [stderr] | [INFO] [stderr] 28 | write!(f, "{}", self.description()), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stderr] --> src/mnist/error.rs:30:38 [INFO] [stderr] | [INFO] [stderr] 30 | write!(f, "{}", self.description()), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string() [INFO] [stderr] --> src/mnist/error.rs:40:44 [INFO] [stderr] | [INFO] [stderr] 40 | MnistError::Io(ref err) => err.description(), [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `labels` [INFO] [stderr] --> src/main.rs:12:9 [INFO] [stderr] | [INFO] [stderr] 12 | let labels = [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_labels` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `images` [INFO] [stderr] --> src/main.rs:14:9 [INFO] [stderr] | [INFO] [stderr] 14 | let images = [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_images` [INFO] [stderr] [INFO] [stderr] warning: field is never read: `num_neurons` [INFO] [stderr] --> src/net/geom.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | num_neurons: usize, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] note: `Geometry` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stderr] --> src/net/geom.rs:3:10 [INFO] [stderr] | [INFO] [stderr] 3 | #[derive(Clone, Debug)] [INFO] [stderr] | ^^^^^ ^^^^^ [INFO] [stderr] = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] warning: `neural_net` (bin "neural_net" test) generated 9 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.84s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/neural_net-df58355ce5688778) [INFO] running `Command { std: "docker" "inspect" "4b8288e7f06b792460b4f2927bc555693518cd86d11bc534db063d9adbeb8d42", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b8288e7f06b792460b4f2927bc555693518cd86d11bc534db063d9adbeb8d42", kill_on_drop: false }` [INFO] [stdout] 4b8288e7f06b792460b4f2927bc555693518cd86d11bc534db063d9adbeb8d42