[INFO] fetching crate scholar 0.1.7... [INFO] testing scholar-0.1.7 against beta-2022-04-10 for beta-1.61-1 [INFO] extracting crate scholar 0.1.7 into /workspace/builds/worker-108/source [INFO] validating manifest of crates.io crate scholar 0.1.7 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 crates.io crate scholar 0.1.7 [INFO] finished tweaking crates.io crate scholar 0.1.7 [INFO] tweaked toml for crates.io crate scholar 0.1.7 written to /workspace/builds/worker-108/source/Cargo.toml [INFO] crate crates.io crate scholar 0.1.7 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] 2ad1a5893cecf49d0d5183f5580aef71f0dc75c57beea0f5b3201905f6902fb9 [INFO] running `Command { std: "docker" "start" "-a" "2ad1a5893cecf49d0d5183f5580aef71f0dc75c57beea0f5b3201905f6902fb9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2ad1a5893cecf49d0d5183f5580aef71f0dc75c57beea0f5b3201905f6902fb9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2ad1a5893cecf49d0d5183f5580aef71f0dc75c57beea0f5b3201905f6902fb9", kill_on_drop: false }` [INFO] [stdout] 2ad1a5893cecf49d0d5183f5580aef71f0dc75c57beea0f5b3201905f6902fb9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] 48bd7f32b065279b8e00589750c67bee19b528c8522bf6348b31636a674405eb [INFO] running `Command { std: "docker" "start" "-a" "48bd7f32b065279b8e00589750c67bee19b528c8522bf6348b31636a674405eb", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.10 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling syn v1.0.17 [INFO] [stderr] Compiling libc v0.2.69 [INFO] [stderr] Compiling libm v0.2.1 [INFO] [stderr] Compiling serde v1.0.106 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling proc-macro-hack v0.5.15 [INFO] [stderr] Compiling ppv-lite86 v0.2.6 [INFO] [stderr] Compiling typenum v1.12.0 [INFO] [stderr] Compiling regex-syntax v0.6.17 [INFO] [stderr] Compiling ryu v1.0.3 [INFO] [stderr] Compiling rawpointer v0.2.1 [INFO] [stderr] Compiling unicode-width v0.1.7 [INFO] [stderr] Compiling itoa v0.4.5 [INFO] [stderr] Compiling number_prefix v0.3.0 [INFO] [stderr] Compiling matrixmultiply v0.2.3 [INFO] [stderr] Compiling regex v1.3.6 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling num-complex v0.2.4 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling regex-automata v0.1.9 [INFO] [stderr] Compiling csv-core v0.1.10 [INFO] [stderr] Compiling quote v1.0.3 [INFO] [stderr] Compiling generic-array v0.13.2 [INFO] [stderr] Compiling clicolors-control v1.0.1 [INFO] [stderr] Compiling termios v0.3.2 [INFO] [stderr] Compiling console v0.10.0 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling approx v0.3.2 [INFO] [stderr] Compiling indicatif v0.14.0 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Compiling paste-impl v0.1.10 [INFO] [stderr] Compiling thiserror-impl v1.0.15 [INFO] [stderr] Compiling rand_distr v0.2.2 [INFO] [stderr] Compiling paste v0.1.10 [INFO] [stderr] Compiling thiserror v1.0.15 [INFO] [stderr] Compiling bstr v0.2.12 [INFO] [stderr] Compiling bincode v1.2.1 [INFO] [stderr] Compiling simba v0.1.2 [INFO] [stderr] Compiling csv v1.1.3 [INFO] [stderr] Compiling nalgebra v0.21.0 [INFO] [stderr] Compiling scholar v0.1.7 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 36s [INFO] running `Command { std: "docker" "inspect" "48bd7f32b065279b8e00589750c67bee19b528c8522bf6348b31636a674405eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "48bd7f32b065279b8e00589750c67bee19b528c8522bf6348b31636a674405eb", kill_on_drop: false }` [INFO] [stdout] 48bd7f32b065279b8e00589750c67bee19b528c8522bf6348b31636a674405eb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] ce8f9614c70e83c62f98ce8fca16f4f45cf6e1fb58d3bf4cb539ff509a40562b [INFO] running `Command { std: "docker" "start" "-a" "ce8f9614c70e83c62f98ce8fca16f4f45cf6e1fb58d3bf4cb539ff509a40562b", kill_on_drop: false }` [INFO] [stderr] Compiling anyhow v1.0.28 [INFO] [stderr] Compiling scholar v0.1.7 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 10.70s [INFO] [stderr] Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/scholar-f388ca93c566d2fc) [INFO] running `Command { std: "docker" "inspect" "ce8f9614c70e83c62f98ce8fca16f4f45cf6e1fb58d3bf4cb539ff509a40562b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ce8f9614c70e83c62f98ce8fca16f4f45cf6e1fb58d3bf4cb539ff509a40562b", kill_on_drop: false }` [INFO] [stdout] ce8f9614c70e83c62f98ce8fca16f4f45cf6e1fb58d3bf4cb539ff509a40562b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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] 250bcca3c630a2519df5d443e8329e8b9341e2b58cbf047c833afa24ff6fd1ae [INFO] running `Command { std: "docker" "start" "-a" "250bcca3c630a2519df5d443e8329e8b9341e2b58cbf047c833afa24ff6fd1ae", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.19s [INFO] [stdout] [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/scholar-f388ca93c566d2fc) [INFO] [stdout] running 0 tests [INFO] [stderr] Doc-tests scholar [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 14 tests [INFO] [stdout] test src/dataset.rs - dataset::Dataset::split (line 82) ... FAILED [INFO] [stdout] test src/network.rs - network::NeuralNet::from_file (line 72) ... FAILED [INFO] [stdout] test src/network.rs - network::Activation::derivative (line 310) ... FAILED [INFO] [stdout] test src/network.rs - network::Activation::derivative (line 304) ... FAILED [INFO] [stdout] test src/network.rs - network::NeuralNet::test (line 130) ... FAILED [INFO] [stdout] test src/network.rs - network::NeuralNet::save (line 164) ... FAILED [INFO] [stdout] test src/network.rs - network::NeuralNet::train (line 88) ... FAILED [INFO] [stdout] test src/network.rs - network::Activation::derivative (line 295) ... FAILED [INFO] [stdout] test src/network.rs - network::Activation (line 264) ... ok [INFO] [stdout] test src/dataset.rs - dataset::Dataset (line 10) ... ok [INFO] [stdout] test src/dataset.rs - dataset::Dataset::rows (line 119) ... ok [INFO] [stdout] test src/network.rs - network::NeuralNet::new (line 27) ... ok [INFO] [stdout] test src/network.rs - network::NeuralNet::guess (line 185) ... ok [INFO] [stdout] test src/dataset.rs - dataset::Dataset::from_csv (line 38) ... ok [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/dataset.rs - dataset::Dataset::split (line 82) stdout ---- [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/dataset.rs:83:63 [INFO] [stdout] | [INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_dataset_rs_82_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 4 | | let dataset = scholar::Dataset::from_csv("iris.csv", false, 4)?; [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 5 | | [INFO] [stdout] 6 | | // Randomly allocates 75% of the original dataset to `training_data`, and the rest [INFO] [stdout] 7 | | // to `testing_data` [INFO] [stdout] 8 | | let (training_data, testing_data) = dataset.split(0.75); [INFO] [stdout] 9 | | } _doctest_main_src_dataset_rs_82_0() } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `()` [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/network.rs - network::NeuralNet::from_file (line 72) stdout ---- [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/network.rs:75:70 [INFO] [stdout] | [INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_network_rs_72_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 4 | | use scholar::{NeuralNet, Sigmoid}; [INFO] [stdout] 5 | | [INFO] [stdout] 6 | | let brain: NeuralNet = NeuralNet::from_file("brain.network")?; [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 7 | | } _doctest_main_src_network_rs_72_0() } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `()` [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/network.rs - network::Activation::derivative (line 310) stdout ---- [INFO] [stdout] error: non-item in item list [INFO] [stdout] --> src/network.rs:312:5 [INFO] [stdout] | [INFO] [stdout] 3 | impl Activation for Sigmoid { [INFO] [stdout] | - item list starts here [INFO] [stdout] 4 | ... [INFO] [stdout] | ^^^ non-item starts here [INFO] [stdout] ... [INFO] [stdout] 9 | } [INFO] [stdout] | - item list ends here [INFO] [stdout] [INFO] [stdout] error[E0405]: cannot find trait `Activation` in this scope [INFO] [stdout] --> src/network.rs:311:6 [INFO] [stdout] | [INFO] [stdout] 3 | impl Activation for Sigmoid { [INFO] [stdout] | ^^^^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this trait [INFO] [stdout] | [INFO] [stdout] 2 | use scholar::Activation; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error[E0412]: cannot find type `Sigmoid` in this scope [INFO] [stdout] --> src/network.rs:311:21 [INFO] [stdout] | [INFO] [stdout] 3 | impl Activation for Sigmoid { [INFO] [stdout] | ^^^^^^^ not found in this scope [INFO] [stdout] | [INFO] [stdout] help: consider importing this struct [INFO] [stdout] | [INFO] [stdout] 2 | use scholar::Sigmoid; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0405, E0412. [INFO] [stdout] For more information about an error, try `rustc --explain E0405`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/network.rs - network::Activation::derivative (line 304) stdout ---- [INFO] [stdout] error[E0425]: cannot find value `x` in this scope [INFO] [stdout] --> src/network.rs:305:1 [INFO] [stdout] | [INFO] [stdout] 3 | x * (1 - x) [INFO] [stdout] | ^ not found in this scope [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `x` in this scope [INFO] [stdout] --> src/network.rs:305:10 [INFO] [stdout] | [INFO] [stdout] 3 | x * (1 - x) [INFO] [stdout] | ^ not found in this scope [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0425`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/network.rs - network::NeuralNet::test (line 130) stdout ---- [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/network.rs:133:54 [INFO] [stdout] | [INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_network_rs_130_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 4 | | use scholar::{Dataset, NeuralNet, Sigmoid}; [INFO] [stdout] 5 | | [INFO] [stdout] 6 | | let dataset = Dataset::from_csv("iris.csv", false, 4)?; [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] ... | [INFO] [stdout] 13 | | println!("Accuracy: {:.2}%", (1.0 - avg_cost) * 100.0); [INFO] [stdout] 14 | | } _doctest_main_src_network_rs_130_0() } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `()` [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/network.rs - network::NeuralNet::save (line 164) stdout ---- [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/network.rs:171:28 [INFO] [stdout] | [INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_network_rs_164_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 4 | | use scholar::{NeuralNet, Sigmoid}; [INFO] [stdout] 5 | | [INFO] [stdout] 6 | | let brain: NeuralNet = NeuralNet::new(&[2, 2, 1]); [INFO] [stdout] ... | [INFO] [stdout] 10 | | brain.save("brain.network")?; [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] 11 | | } _doctest_main_src_network_rs_164_0() } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `()` [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/network.rs - network::NeuralNet::train (line 88) stdout ---- [INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) [INFO] [stdout] --> src/network.rs:91:54 [INFO] [stdout] | [INFO] [stdout] 3 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_network_rs_88_0() { [INFO] [stdout] | ______________________________________- [INFO] [stdout] 4 | | use scholar::{Dataset, NeuralNet, Sigmoid}; [INFO] [stdout] 5 | | [INFO] [stdout] 6 | | let dataset = Dataset::from_csv("iris.csv", false, 4)?; [INFO] [stdout] | | ^ cannot use the `?` operator in a function that returns `()` [INFO] [stdout] ... | [INFO] [stdout] 12 | | brain.train(dataset, 10_000, 0.01); [INFO] [stdout] 13 | | } _doctest_main_src_network_rs_88_0() } [INFO] [stdout] | |_- this function should return `Result` or `Option` to accept `?` [INFO] [stdout] | [INFO] [stdout] = help: the trait `FromResidual>` is not implemented for `()` [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0277`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/network.rs - network::Activation::derivative (line 295) stdout ---- [INFO] [stdout] error[E0425]: cannot find function `σ` in this scope [INFO] [stdout] --> src/network.rs:296:1 [INFO] [stdout] | [INFO] [stdout] 3 | σ(x) * (1 - σ(x)) [INFO] [stdout] | ^ not found in this scope [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `x` in this scope [INFO] [stdout] --> src/network.rs:296:3 [INFO] [stdout] | [INFO] [stdout] 3 | σ(x) * (1 - σ(x)) [INFO] [stdout] | ^ not found in this scope [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `σ` in this scope [INFO] [stdout] --> src/network.rs:296:13 [INFO] [stdout] | [INFO] [stdout] 3 | σ(x) * (1 - σ(x)) [INFO] [stdout] | ^ not found in this scope [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find value `x` in this scope [INFO] [stdout] --> src/network.rs:296:15 [INFO] [stdout] | [INFO] [stdout] 3 | σ(x) * (1 - σ(x)) [INFO] [stdout] | ^ not found in this scope [INFO] [stdout] [INFO] [stdout] warning: the usage of Script Group `Greek` in this crate consists solely of mixed script confusables [INFO] [stdout] --> src/network.rs:296:1 [INFO] [stdout] | [INFO] [stdout] 3 | σ(x) * (1 - σ(x)) [INFO] [stdout] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mixed_script_confusables)]` on by default [INFO] [stdout] = note: the usage includes 'σ' (U+03C3) [INFO] [stdout] = note: please recheck to make sure their usages are indeed what you want [INFO] [stdout] [INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0425`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/dataset.rs - dataset::Dataset::split (line 82) [INFO] [stdout] src/network.rs - network::Activation::derivative (line 295) [INFO] [stdout] src/network.rs - network::Activation::derivative (line 304) [INFO] [stdout] src/network.rs - network::Activation::derivative (line 310) [INFO] [stdout] src/network.rs - network::NeuralNet::from_file (line 72) [INFO] [stdout] src/network.rs - network::NeuralNet::save (line 164) [INFO] [stdout] src/network.rs - network::NeuralNet::test (line 130) [INFO] [stdout] src/network.rs - network::NeuralNet::train (line 88) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 6 passed; 8 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.90s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--doc' [INFO] running `Command { std: "docker" "inspect" "250bcca3c630a2519df5d443e8329e8b9341e2b58cbf047c833afa24ff6fd1ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "250bcca3c630a2519df5d443e8329e8b9341e2b58cbf047c833afa24ff6fd1ae", kill_on_drop: false }` [INFO] [stdout] 250bcca3c630a2519df5d443e8329e8b9341e2b58cbf047c833afa24ff6fd1ae