[INFO] cloning repository https://github.com/iofuwisa/learning_rust_dl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iofuwisa/learning_rust_dl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiofuwisa%2Flearning_rust_dl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiofuwisa%2Flearning_rust_dl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8459668244848a9ea2d6d16811c6080ce5d45f54
[INFO] testing iofuwisa/learning_rust_dl against 1.69.0 for beta-1.70-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiofuwisa%2Flearning_rust_dl" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iofuwisa/learning_rust_dl on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iofuwisa/learning_rust_dl
[INFO] finished tweaking git repo https://github.com/iofuwisa/learning_rust_dl
[INFO] tweaked toml for git repo https://github.com/iofuwisa/learning_rust_dl written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/iofuwisa/learning_rust_dl already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded termtree v0.2.1
[INFO] [stderr]   Downloaded wasm-bindgen-test-macro v0.3.28
[INFO] [stderr]   Downloaded mockall v0.10.2
[INFO] [stderr]   Downloaded mockall_derive v0.10.2
[INFO] [stderr]   Downloaded plotters-bitmap v0.3.1
[INFO] [stderr]   Downloaded wasm-bindgen-test v0.3.28
[INFO] [stderr]   Downloaded mnist v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9d19f74b4a83ab044844afa93dcf53a4850f62b9f090616d9451ebbd13832fa4
[INFO] running `Command { std: "docker" "start" "-a" "9d19f74b4a83ab044844afa93dcf53a4850f62b9f090616d9451ebbd13832fa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d19f74b4a83ab044844afa93dcf53a4850f62b9f090616d9451ebbd13832fa4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d19f74b4a83ab044844afa93dcf53a4850f62b9f090616d9451ebbd13832fa4", kill_on_drop: false }`
[INFO] [stdout] 9d19f74b4a83ab044844afa93dcf53a4850f62b9f090616d9451ebbd13832fa4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb1f1e654dbc163c5dfd104383aaaa555f2e846a84ebd80813799b60d8f58121
[INFO] running `Command { std: "docker" "start" "-a" "cb1f1e654dbc163c5dfd104383aaaa555f2e846a84ebd80813799b60d8f58121", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling syn v1.0.77
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.78
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling bumpalo v3.7.1
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling wasm-bindgen v0.2.78
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling pathfinder_simd v0.5.1
[INFO] [stderr]    Compiling bytemuck v1.7.2
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling pathfinder_geometry v0.5.1
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling gif v0.11.2
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling servo-fontconfig v0.5.1
[INFO] [stderr]    Compiling freetype v0.7.0
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling float-ord v0.2.0
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling matrixmultiply v0.3.1
[INFO] [stderr]    Compiling font-kit v0.10.1
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.78
[INFO] [stderr]    Compiling ttf-parser v0.12.3
[INFO] [stderr]    Compiling plotters-bitmap v0.3.1
[INFO] [stderr]    Compiling ndarray v0.15.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling rulinalg v0.4.2
[INFO] [stderr]    Compiling mnist v0.4.1
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.78
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.78
[INFO] [stderr]    Compiling js-sys v0.3.55
[INFO] [stderr]    Compiling web-sys v0.3.55
[INFO] [stderr]    Compiling wasm-bindgen-futures v0.4.28
[INFO] [stderr]    Compiling deep_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::deep_learning::statistics::*`
[INFO] [stdout]   --> src/deep_learning/common.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::deep_learning::statistics::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/deep_learning/common.rs:95:34
[INFO] [stdout]    |
[INFO] [stdout] 95 |             print!("{} ", if img[(i*28+j)] > 0.0 {"*"} else {" "});
[INFO] [stdout]    |                                  ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 95 -             print!("{} ", if img[(i*28+j)] > 0.0 {"*"} else {" "});
[INFO] [stdout] 95 +             print!("{} ", if img[i*28+j] > 0.0 {"*"} else {" "});
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/direct_value.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::deep_learning::*`
[INFO] [stdout]   --> src/deep_learning/layer/direct_value.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::deep_learning::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/affine.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/affine_direct_value.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufRead, BufReader, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^                  ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/relu.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/sigmoid.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/batch_norm.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/softmax_with_loss.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/dropout.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/convolution.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/pooling.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ArrayView1`
[INFO] [stdout]  --> src/deep_learning/layer/pooling.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     ArrayView1,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `s`
[INFO] [stdout]  --> src/image.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     s,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/deep_learning/layer/network_layer.rs:21:57
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/deep_learning/layer/direct_value.rs:80:57
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/affine.rs:166:57
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/affine_direct_value.rs:112:57
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/deep_learning/layer/relu.rs:91:57
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/deep_learning/layer/sigmoid.rs:95:57
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/batch_norm.rs:236:57
[INFO] [stdout]     |
[INFO] [stdout] 236 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 236 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/softmax_with_loss.rs:122:57
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/dropout.rs:115:57
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:261:57
[INFO] [stdout]     |
[INFO] [stdout] 261 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 261 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/pooling.rs:173:57
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/neural_network.rs:124:75
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn import_from_file(file_path: &str) -> Result<NeuralNetwork, Box<std::error::Error>> {
[INFO] [stdout]     |                                                                           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn import_from_file(file_path: &str) -> Result<NeuralNetwork, Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/neural_network.rs:148:44
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub fn export(&self) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub fn export(&self) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/deep_learning/layer/direct_value.rs:4:45
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/deep_learning/layer/affine_direct_value.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufRead, BufReader, Lines};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/deep_learning/layer/pooling.rs:2:45
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/deep_learning/layer/convolution.rs:2:45
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/deep_learning/layer/softmax_with_loss.rs:3:45
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/deep_learning/common.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     for i in 0..size {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/deep_learning/layer/network_layer.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dw`
[INFO] [stdout]    --> src/deep_learning/layer/batch_norm.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let dw = backword_broadcast(&(normalized * &dout));
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_dw`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `db`
[INFO] [stdout]    --> src/deep_learning/layer/batch_norm.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let db = dout.sum_axis(Axis(0)).to_shared().reshape((1, w.shape()[1])).to_owned();
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_db`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filter`
[INFO] [stdout]   --> src/deep_learning/layer/dropout.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let filter = neural_network::import_network_layer(lines);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bias`
[INFO] [stdout]   --> src/deep_learning/layer/dropout.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let bias = neural_network::import_network_layer(lines);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_bias`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `batch_num`
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:181:18
[INFO] [stdout]     |
[INFO] [stdout] 181 |             let (batch_num, _channel_num, _data_h, _data_w) = self.x_shape;
[INFO] [stdout]     |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_batch_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filter_num`
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:182:18
[INFO] [stdout]     |
[INFO] [stdout] 182 |             let (filter_num, _channel_num, filter_h, filter_w) = self.filter_shape;
[INFO] [stdout]     |                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `batch_num`
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:202:14
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let (batch_num, channel_num, x_h, x_w) = self.x_shape;
[INFO] [stdout]     |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_batch_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col_index`
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:294:17
[INFO] [stdout]     |
[INFO] [stdout] 294 |             let col_index = y * filter_w + x;
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_col_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 227 |         let mut df = col_x_2d.t().dot(&dout_2d).t().to_owned();
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:257:5
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn weight_sum(&self) -> f64 {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 258 |         return self.weight_sum();
[INFO] [stdout]     |                ----------------- recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/deep_learning/optimizer/momentum.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut velocity = self.velocity.as_mut().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/deep_learning/optimizer/rmsprop.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut velocity = self.velocity.as_mut().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/deep_learning/optimizer/adagrad.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut grad_squared_sum = self.grad_squared_sum.as_mut().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/deep_learning/optimizer/adam.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut m = self.m.as_mut().unwrap();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/deep_learning/optimizer/adam.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut v = self.v.as_mut().unwrap();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `broadcast_rows` is never used
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:382:4
[INFO] [stdout]     |
[INFO] [stdout] 382 | fn broadcast_rows(data: &Array2<f64>, row_num: usize) -> Array2<f64> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/deep_learning/layer/affine_direct_value.rs:100:13
[INFO] [stdout]     |
[INFO] [stdout] 100 |             plot_bias_histogram(self.value.clone().into_iter().collect(), &self.name);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/deep_learning/layer/affine_direct_value.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |             plot_histogram(self.value.clone().into_iter().collect(), &self.name);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/deep_learning/neural_network.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         plot_rate(correct_rates, "correct_rate");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/deep_learning/neural_network.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         plot_loss(losses, "loss");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/deep_learning/neural_network.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |         self.last_layer.export(&mut file);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `trn_img:` in this pattern is redundant
[INFO] [stdout]   --> src/mnist_images.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             trn_img: trn_img,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: use shorthand field pattern: `trn_img`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_shorthand_field_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `val_img:` in this pattern is redundant
[INFO] [stdout]   --> src/mnist_images.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             val_img: val_img,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: use shorthand field pattern: `val_img`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `tst_img:` in this pattern is redundant
[INFO] [stdout]   --> src/mnist_images.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |             tst_img: tst_img,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: use shorthand field pattern: `tst_img`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 59 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `trn_lbl`
[INFO] [stdout]   --> src/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let trn_lbl = mnist.get_trn_lbl();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_trn_lbl`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tst_lbl`
[INFO] [stdout]   --> src/main.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let tst_lbl = mnist.get_tst_lbl();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tst_lbl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut trn_img_bi = Array2::<f64>::from_shape_fn(
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let mut tst_img_bi = Array2::<f64>::from_shape_fn(
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DROUPOUT_RATE` is never used
[INFO] [stdout]   --> src/main.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | const DROUPOUT_RATE: f64 = 0.15;
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SGD_LEARNING_RATE` is never used
[INFO] [stdout]   --> src/main.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 | const SGD_LEARNING_RATE: f64 = 0.001;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MOMENTUM_LEARNING_RATE` is never used
[INFO] [stdout]   --> src/main.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | const MOMENTUM_LEARNING_RATE: f64 = 0.1;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MOMENTUM_FLICTION` is never used
[INFO] [stdout]   --> src/main.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 | const MOMENTUM_FLICTION: f64 = 0.9;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RMSPROP_LEARNING_RATE` is never used
[INFO] [stdout]   --> src/main.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 | const RMSPROP_LEARNING_RATE: f64 = 0.1;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RMSPROP_FLICTION` is never used
[INFO] [stdout]   --> src/main.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 | const RMSPROP_FLICTION: f64 = 0.99;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ADAGRAD_LEARNING_RATE` is never used
[INFO] [stdout]   --> src/main.rs:26:7
[INFO] [stdout]    |
[INFO] [stdout] 26 | const ADAGRAD_LEARNING_RATE: f64 = 0.1;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `guess_main` is never used
[INFO] [stdout]    --> src/main.rs:198:4
[INFO] [stdout]     |
[INFO] [stdout] 198 | fn guess_main() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.35s
[INFO] running `Command { std: "docker" "inspect" "cb1f1e654dbc163c5dfd104383aaaa555f2e846a84ebd80813799b60d8f58121", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb1f1e654dbc163c5dfd104383aaaa555f2e846a84ebd80813799b60d8f58121", kill_on_drop: false }`
[INFO] [stdout] cb1f1e654dbc163c5dfd104383aaaa555f2e846a84ebd80813799b60d8f58121
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 212492b0fd7113f927ff6a2bd763d42df89eb4cf3b6241fa4d62179c08731f3c
[INFO] running `Command { std: "docker" "start" "-a" "212492b0fd7113f927ff6a2bd763d42df89eb4cf3b6241fa4d62179c08731f3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling predicates-core v1.0.2
[INFO] [stderr]    Compiling float-cmp v0.8.0
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling termtree v0.2.1
[INFO] [stderr]    Compiling console_error_panic_hook v0.1.6
[INFO] [stderr]    Compiling mockall_derive v0.10.2
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.28
[INFO] [stderr]    Compiling predicates-tree v1.0.4
[INFO] [stderr]    Compiling downcast v0.10.0
[INFO] [stderr]    Compiling fragile v1.0.0
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling mockall_double v0.2.0
[INFO] [stdout] warning: unused import: `crate::deep_learning::statistics::*`
[INFO] [stdout]   --> src/deep_learning/common.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crate::deep_learning::statistics::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/deep_learning/common.rs:95:34
[INFO] [stdout]    |
[INFO] [stdout] 95 |             print!("{} ", if img[(i*28+j)] > 0.0 {"*"} else {" "});
[INFO] [stdout]    |                                  ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 95 -             print!("{} ", if img[(i*28+j)] > 0.0 {"*"} else {" "});
[INFO] [stdout] 95 +             print!("{} ", if img[i*28+j] > 0.0 {"*"} else {" "});
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/direct_value.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::deep_learning::*`
[INFO] [stdout]   --> src/deep_learning/layer/direct_value.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::deep_learning::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/affine.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/affine_direct_value.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufRead, BufReader, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^                  ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/relu.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/sigmoid.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/batch_norm.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/softmax_with_loss.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/dropout.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/convolution.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/pooling.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ArrayView1`
[INFO] [stdout]  --> src/deep_learning/layer/pooling.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     ArrayView1,
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `s`
[INFO] [stdout]  --> src/image.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     s,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/deep_learning/layer/network_layer.rs:21:57
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/deep_learning/layer/direct_value.rs:80:57
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/affine.rs:166:57
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/affine_direct_value.rs:112:57
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/deep_learning/layer/relu.rs:91:57
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/deep_learning/layer/sigmoid.rs:95:57
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/batch_norm.rs:236:57
[INFO] [stdout]     |
[INFO] [stdout] 236 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 236 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/softmax_with_loss.rs:122:57
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/dropout.rs:115:57
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:261:57
[INFO] [stdout]     |
[INFO] [stdout] 261 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 261 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/pooling.rs:173:57
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/neural_network.rs:124:75
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn import_from_file(file_path: &str) -> Result<NeuralNetwork, Box<std::error::Error>> {
[INFO] [stdout]     |                                                                           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn import_from_file(file_path: &str) -> Result<NeuralNetwork, Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/neural_network.rs:148:44
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub fn export(&self) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub fn export(&self) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/deep_learning/layer/direct_value.rs:4:45
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/deep_learning/layer/affine_direct_value.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufRead, BufReader, Lines};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/deep_learning/layer/pooling.rs:2:45
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/deep_learning/layer/convolution.rs:2:45
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/deep_learning/layer/softmax_with_loss.rs:3:45
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/deep_learning/common.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     for i in 0..size {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/deep_learning/layer/network_layer.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dw`
[INFO] [stdout]    --> src/deep_learning/layer/batch_norm.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let dw = backword_broadcast(&(normalized * &dout));
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_dw`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `db`
[INFO] [stdout]    --> src/deep_learning/layer/batch_norm.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let db = dout.sum_axis(Axis(0)).to_shared().reshape((1, w.shape()[1])).to_owned();
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_db`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filter`
[INFO] [stdout]   --> src/deep_learning/layer/dropout.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let filter = neural_network::import_network_layer(lines);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bias`
[INFO] [stdout]   --> src/deep_learning/layer/dropout.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let bias = neural_network::import_network_layer(lines);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_bias`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `batch_num`
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:181:18
[INFO] [stdout]     |
[INFO] [stdout] 181 |             let (batch_num, _channel_num, _data_h, _data_w) = self.x_shape;
[INFO] [stdout]     |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_batch_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filter_num`
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:182:18
[INFO] [stdout]     |
[INFO] [stdout] 182 |             let (filter_num, _channel_num, filter_h, filter_w) = self.filter_shape;
[INFO] [stdout]     |                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `batch_num`
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:202:14
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let (batch_num, channel_num, x_h, x_w) = self.x_shape;
[INFO] [stdout]     |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_batch_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col_index`
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:294:17
[INFO] [stdout]     |
[INFO] [stdout] 294 |             let col_index = y * filter_w + x;
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_col_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 227 |         let mut df = col_x_2d.t().dot(&dout_2d).t().to_owned();
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:257:5
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn weight_sum(&self) -> f64 {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 258 |         return self.weight_sum();
[INFO] [stdout]     |                ----------------- recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/deep_learning/optimizer/momentum.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut velocity = self.velocity.as_mut().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/deep_learning/optimizer/rmsprop.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut velocity = self.velocity.as_mut().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/deep_learning/optimizer/adagrad.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut grad_squared_sum = self.grad_squared_sum.as_mut().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/deep_learning/optimizer/adam.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut m = self.m.as_mut().unwrap();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/deep_learning/optimizer/adam.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut v = self.v.as_mut().unwrap();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `broadcast_rows` is never used
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:382:4
[INFO] [stdout]     |
[INFO] [stdout] 382 | fn broadcast_rows(data: &Array2<f64>, row_num: usize) -> Array2<f64> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/deep_learning/layer/affine_direct_value.rs:100:13
[INFO] [stdout]     |
[INFO] [stdout] 100 |             plot_bias_histogram(self.value.clone().into_iter().collect(), &self.name);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/deep_learning/layer/affine_direct_value.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |             plot_histogram(self.value.clone().into_iter().collect(), &self.name);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling wasm-bindgen-test v0.3.28
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/deep_learning/neural_network.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         plot_rate(correct_rates, "correct_rate");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/deep_learning/neural_network.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         plot_loss(losses, "loss");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/deep_learning/neural_network.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |         self.last_layer.export(&mut file);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `trn_img:` in this pattern is redundant
[INFO] [stdout]   --> src/mnist_images.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             trn_img: trn_img,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: use shorthand field pattern: `trn_img`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_shorthand_field_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `val_img:` in this pattern is redundant
[INFO] [stdout]   --> src/mnist_images.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             val_img: val_img,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: use shorthand field pattern: `val_img`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `tst_img:` in this pattern is redundant
[INFO] [stdout]   --> src/mnist_images.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |             tst_img: tst_img,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: use shorthand field pattern: `tst_img`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 59 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling predicates v1.0.8
[INFO] [stderr]    Compiling mockall v0.10.2
[INFO] [stderr]    Compiling deep_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]    --> src/main.rs:214:9
[INFO] [stdout]     |
[INFO] [stdout] 214 |     use super::*;
[INFO] [stdout]     |         ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `trn_lbl`
[INFO] [stdout]   --> src/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     let trn_lbl = mnist.get_trn_lbl();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_trn_lbl`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tst_lbl`
[INFO] [stdout]   --> src/main.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let tst_lbl = mnist.get_tst_lbl();
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tst_lbl`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut trn_img_bi = Array2::<f64>::from_shape_fn(
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 58 |     let mut tst_img_bi = Array2::<f64>::from_shape_fn(
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `DROUPOUT_RATE` is never used
[INFO] [stdout]   --> src/main.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | const DROUPOUT_RATE: f64 = 0.15;
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SGD_LEARNING_RATE` is never used
[INFO] [stdout]   --> src/main.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 | const SGD_LEARNING_RATE: f64 = 0.001;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MOMENTUM_LEARNING_RATE` is never used
[INFO] [stdout]   --> src/main.rs:22:7
[INFO] [stdout]    |
[INFO] [stdout] 22 | const MOMENTUM_LEARNING_RATE: f64 = 0.1;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MOMENTUM_FLICTION` is never used
[INFO] [stdout]   --> src/main.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 | const MOMENTUM_FLICTION: f64 = 0.9;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RMSPROP_LEARNING_RATE` is never used
[INFO] [stdout]   --> src/main.rs:24:7
[INFO] [stdout]    |
[INFO] [stdout] 24 | const RMSPROP_LEARNING_RATE: f64 = 0.1;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RMSPROP_FLICTION` is never used
[INFO] [stdout]   --> src/main.rs:25:7
[INFO] [stdout]    |
[INFO] [stdout] 25 | const RMSPROP_FLICTION: f64 = 0.99;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ADAGRAD_LEARNING_RATE` is never used
[INFO] [stdout]   --> src/main.rs:26:7
[INFO] [stdout]    |
[INFO] [stdout] 26 | const ADAGRAD_LEARNING_RATE: f64 = 0.1;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `guess_main` is never used
[INFO] [stdout]    --> src/main.rs:198:4
[INFO] [stdout]     |
[INFO] [stdout] 198 | fn guess_main() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `measure_execute_time` is never used
[INFO] [stdout]    --> src/main.rs:218:8
[INFO] [stdout]     |
[INFO] [stdout] 218 |     fn measure_execute_time(f: &dyn Fn()) -> u128 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/deep_learning/common.rs:95:34
[INFO] [stdout]    |
[INFO] [stdout] 95 |             print!("{} ", if img[(i*28+j)] > 0.0 {"*"} else {" "});
[INFO] [stdout]    |                                  ^      ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 95 -             print!("{} ", if img[(i*28+j)] > 0.0 {"*"} else {" "});
[INFO] [stdout] 95 +             print!("{} ", if img[i*28+j] > 0.0 {"*"} else {" "});
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/direct_value.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::deep_learning::*`
[INFO] [stdout]   --> src/deep_learning/layer/direct_value.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::deep_learning::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/affine.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/affine_direct_value.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufRead, BufReader, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^                  ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/relu.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/sigmoid.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/batch_norm.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/softmax_with_loss.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/dropout.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/convolution.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stdout]  --> src/deep_learning/layer/pooling.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `s`
[INFO] [stdout]  --> src/image.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     s,
[INFO] [stdout]   |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]    --> src/image.rs:157:41
[INFO] [stdout]     |
[INFO] [stdout] 157 |                     print!("{}", if img[(i*width+j)] > 0.0 {"*"} else {" "});
[INFO] [stdout]     |                                         ^         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 157 -                     print!("{}", if img[(i*width+j)] > 0.0 {"*"} else {" "});
[INFO] [stdout] 157 +                     print!("{}", if img[i*width+j] > 0.0 {"*"} else {" "});
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/deep_learning/layer/network_layer.rs:21:57
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/deep_learning/layer/direct_value.rs:80:57
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 80 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/affine.rs:166:57
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 166 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/affine_direct_value.rs:112:57
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 112 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/deep_learning/layer/relu.rs:91:57
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/deep_learning/layer/sigmoid.rs:95:57
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/batch_norm.rs:236:57
[INFO] [stdout]     |
[INFO] [stdout] 236 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 236 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/softmax_with_loss.rs:122:57
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/dropout.rs:115:57
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:261:57
[INFO] [stdout]     |
[INFO] [stdout] 261 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 261 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/layer/pooling.rs:173:57
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 173 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/neural_network.rs:124:75
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn import_from_file(file_path: &str) -> Result<NeuralNetwork, Box<std::error::Error>> {
[INFO] [stdout]     |                                                                           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 124 |     pub fn import_from_file(file_path: &str) -> Result<NeuralNetwork, Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/deep_learning/neural_network.rs:148:44
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub fn export(&self) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub fn export(&self) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/deep_learning/layer/direct_value.rs:4:45
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/deep_learning/layer/softmax_with_loss.rs:3:45
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/deep_learning/layer/affine_direct_value.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufRead, BufReader, Lines};
[INFO] [stdout]   |                                  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/deep_learning/layer/pooling.rs:2:45
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/deep_learning/layer/convolution.rs:2:45
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stdout]   |                                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/deep_learning/common.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     for i in 0..size {
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lerning_rate`
[INFO] [stdout]    --> src/deep_learning/common.rs:176:13
[INFO] [stdout]     |
[INFO] [stdout] 176 |         let lerning_rate = 0.05;
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lerning_rate`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]   --> src/deep_learning/layer/network_layer.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stdout]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dw`
[INFO] [stdout]    --> src/deep_learning/layer/batch_norm.rs:144:13
[INFO] [stdout]     |
[INFO] [stdout] 144 |         let dw = backword_broadcast(&(normalized * &dout));
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_dw`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `db`
[INFO] [stdout]    --> src/deep_learning/layer/batch_norm.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let db = dout.sum_axis(Axis(0)).to_shared().reshape((1, w.shape()[1])).to_owned();
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_db`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filter`
[INFO] [stdout]   --> src/deep_learning/layer/dropout.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |         let filter = neural_network::import_network_layer(lines);
[INFO] [stdout]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `bias`
[INFO] [stdout]   --> src/deep_learning/layer/dropout.rs:48:13
[INFO] [stdout]    |
[INFO] [stdout] 48 |         let bias = neural_network::import_network_layer(lines);
[INFO] [stdout]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_bias`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `batch_num`
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:181:18
[INFO] [stdout]     |
[INFO] [stdout] 181 |             let (batch_num, _channel_num, _data_h, _data_w) = self.x_shape;
[INFO] [stdout]     |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_batch_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filter_num`
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:182:18
[INFO] [stdout]     |
[INFO] [stdout] 182 |             let (filter_num, _channel_num, filter_h, filter_w) = self.filter_shape;
[INFO] [stdout]     |                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `batch_num`
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:202:14
[INFO] [stdout]     |
[INFO] [stdout] 202 |         let (batch_num, channel_num, x_h, x_w) = self.x_shape;
[INFO] [stdout]     |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_batch_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `col_index`
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:294:17
[INFO] [stdout]     |
[INFO] [stdout] 294 |             let col_index = y * filter_w + x;
[INFO] [stdout]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_col_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_b`
[INFO] [stdout]     --> src/deep_learning/layer/convolution.rs:1278:14
[INFO] [stdout]      |
[INFO] [stdout] 1278 |         let (x_b, x_c, x_h, x_w) = x_shape;
[INFO] [stdout]      |              ^^^ help: if this is intentional, prefix it with an underscore: `_x_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x_c`
[INFO] [stdout]     --> src/deep_learning/layer/convolution.rs:1278:19
[INFO] [stdout]      |
[INFO] [stdout] 1278 |         let (x_b, x_c, x_h, x_w) = x_shape;
[INFO] [stdout]      |                   ^^^ help: if this is intentional, prefix it with an underscore: `_x_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filter_b`
[INFO] [stdout]     --> src/deep_learning/layer/convolution.rs:1280:14
[INFO] [stdout]      |
[INFO] [stdout] 1280 |         let (filter_b, filter_c, filter_h, filter_w) = filter_shape;
[INFO] [stdout]      |              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filter_c`
[INFO] [stdout]     --> src/deep_learning/layer/convolution.rs:1280:24
[INFO] [stdout]      |
[INFO] [stdout] 1280 |         let (filter_b, filter_c, filter_h, filter_w) = filter_shape;
[INFO] [stdout]      |                        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]    --> src/image.rs:150:17
[INFO] [stdout]     |
[INFO] [stdout] 150 |             for j in 0..width+2 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]    --> src/image.rs:161:17
[INFO] [stdout]     |
[INFO] [stdout] 161 |             for j in 0..width+2 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]    --> src/image.rs:177:17
[INFO] [stdout]     |
[INFO] [stdout] 177 |             for j in 0..width+2 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `j`
[INFO] [stdout]    --> src/image.rs:188:17
[INFO] [stdout]     |
[INFO] [stdout] 188 |             for j in 0..width+2 {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/deep_learning/layer/affine.rs:247:13
[INFO] [stdout]     |
[INFO] [stdout] 247 |         let mut x_value = arr2(&
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/deep_learning/layer/affine.rs:266:13
[INFO] [stdout]     |
[INFO] [stdout] 266 |         let mut w_value = arr2(&
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 227 |         let mut df = col_x_2d.t().dot(&dout_2d).t().to_owned();
[INFO] [stdout]     |             ----^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function cannot return without recursing
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:257:5
[INFO] [stdout]     |
[INFO] [stdout] 257 |     fn weight_sum(&self) -> f64 {
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stdout] 258 |         return self.weight_sum();
[INFO] [stdout]     |                ----------------- recursive call site
[INFO] [stdout]     |
[INFO] [stdout]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stdout]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/deep_learning/layer/convolution.rs:420:13
[INFO] [stdout]     |
[INFO] [stdout] 420 |         let mut conv = Convolution::new_random(
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/deep_learning/optimizer/momentum.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut velocity = self.velocity.as_mut().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/deep_learning/optimizer/rmsprop.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let mut velocity = self.velocity.as_mut().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/deep_learning/optimizer/adagrad.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let mut grad_squared_sum = self.grad_squared_sum.as_mut().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/deep_learning/optimizer/adam.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let mut m = self.m.as_mut().unwrap();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/deep_learning/optimizer/adam.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut v = self.v.as_mut().unwrap();
[INFO] [stdout]    |             ----^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/deep_learning/graph_plotter/other.rs:255:9
[INFO] [stdout]     |
[INFO] [stdout] 255 |         plot_rate(data, "test_rate");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/deep_learning/graph_plotter/other.rs:261:9
[INFO] [stdout]     |
[INFO] [stdout] 261 |         plot_histogram(data, "test_histo");
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/deep_learning/layer/affine_direct_value.rs:100:13
[INFO] [stdout]     |
[INFO] [stdout] 100 |             plot_bias_histogram(self.value.clone().into_iter().collect(), &self.name);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/deep_learning/layer/affine_direct_value.rs:102:13
[INFO] [stdout]     |
[INFO] [stdout] 102 |             plot_histogram(self.value.clone().into_iter().collect(), &self.name);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `softmaxLoss` should have a snake case name
[INFO] [stdout]    --> src/deep_learning/layer/softmax_with_loss.rs:293:17
[INFO] [stdout]     |
[INFO] [stdout] 293 |         let mut softmaxLoss= SoftmaxWithLoss::new(x, t.clone());
[INFO] [stdout]     |                 ^^^^^^^^^^^ help: convert the identifier to snake case: `softmax_loss`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/deep_learning/neural_network.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         plot_rate(correct_rates, "correct_rate");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/deep_learning/neural_network.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         plot_loss(losses, "loss");
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/deep_learning/neural_network.rs:156:9
[INFO] [stdout]     |
[INFO] [stdout] 156 |         self.last_layer.export(&mut file);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `trn_img:` in this pattern is redundant
[INFO] [stdout]   --> src/mnist_images.rs:37:13
[INFO] [stdout]    |
[INFO] [stdout] 37 |             trn_img: trn_img,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: use shorthand field pattern: `trn_img`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_shorthand_field_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `val_img:` in this pattern is redundant
[INFO] [stdout]   --> src/mnist_images.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |             val_img: val_img,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: use shorthand field pattern: `val_img`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the `tst_img:` in this pattern is redundant
[INFO] [stdout]   --> src/mnist_images.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |             tst_img: tst_img,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^ help: use shorthand field pattern: `tst_img`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `TRN_IMG_SIZE` should have a snake case name
[INFO] [stdout]    --> src/mnist_images.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 |         let TRN_IMG_SIZE: usize = 5000;
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `trn_img_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `VAL_IMG_SIZE` should have a snake case name
[INFO] [stdout]    --> src/mnist_images.rs:149:13
[INFO] [stdout]     |
[INFO] [stdout] 149 |         let VAL_IMG_SIZE: usize = 1;
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `val_img_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `TST_IMG_SIZE` should have a snake case name
[INFO] [stdout]    --> src/mnist_images.rs:150:13
[INFO] [stdout]     |
[INFO] [stdout] 150 |         let TST_IMG_SIZE: usize = 2000;
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `tst_img_size`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 75 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.87s
[INFO] running `Command { std: "docker" "inspect" "212492b0fd7113f927ff6a2bd763d42df89eb4cf3b6241fa4d62179c08731f3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "212492b0fd7113f927ff6a2bd763d42df89eb4cf3b6241fa4d62179c08731f3c", kill_on_drop: false }`
[INFO] [stdout] 212492b0fd7113f927ff6a2bd763d42df89eb4cf3b6241fa4d62179c08731f3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 174aa685d13bf573416f8d075c91e67971db713894d63f14cf5d2f6e3d614af0
[INFO] running `Command { std: "docker" "start" "-a" "174aa685d13bf573416f8d075c91e67971db713894d63f14cf5d2f6e3d614af0", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `crate::deep_learning::statistics::*`
[INFO] [stderr]   --> src/deep_learning/common.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use crate::deep_learning::statistics::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]   --> src/deep_learning/common.rs:95:34
[INFO] [stderr]    |
[INFO] [stderr] 95 |             print!("{} ", if img[(i*28+j)] > 0.0 {"*"} else {" "});
[INFO] [stderr]    |                                  ^      ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 95 -             print!("{} ", if img[(i*28+j)] > 0.0 {"*"} else {" "});
[INFO] [stderr] 95 +             print!("{} ", if img[i*28+j] > 0.0 {"*"} else {" "});
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stderr]  --> src/deep_learning/layer/direct_value.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stderr]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::deep_learning::*`
[INFO] [stderr]   --> src/deep_learning/layer/direct_value.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use crate::deep_learning::*;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stderr]  --> src/deep_learning/layer/affine.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stderr]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stderr]  --> src/deep_learning/layer/affine_direct_value.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Read, Write, BufRead, BufReader, Lines};
[INFO] [stderr]   |               ^^^^  ^^^^                  ^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stderr]  --> src/deep_learning/layer/relu.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stderr]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stderr]  --> src/deep_learning/layer/sigmoid.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stderr]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stderr]  --> src/deep_learning/layer/batch_norm.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stderr]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stderr]  --> src/deep_learning/layer/softmax_with_loss.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stderr]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufRead`, `BufReader`, `Lines`, `Read`, `self`
[INFO] [stderr]  --> src/deep_learning/layer/dropout.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stderr]   |               ^^^^  ^^^^         ^^^^^^^^^  ^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stderr]  --> src/deep_learning/layer/convolution.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stderr]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stderr]  --> src/deep_learning/layer/pooling.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stderr]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ArrayView1`
[INFO] [stderr]  --> src/deep_learning/layer/pooling.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     ArrayView1,
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `s`
[INFO] [stderr]  --> src/image.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     s,
[INFO] [stderr]   |     ^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/deep_learning/layer/network_layer.rs:21:57
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]    |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/deep_learning/layer/direct_value.rs:80:57
[INFO] [stderr]    |
[INFO] [stderr] 80 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 80 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]    |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deep_learning/layer/affine.rs:166:57
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 166 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]     |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deep_learning/layer/affine_direct_value.rs:112:57
[INFO] [stderr]     |
[INFO] [stderr] 112 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 112 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]     |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/deep_learning/layer/relu.rs:91:57
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]    |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/deep_learning/layer/sigmoid.rs:95:57
[INFO] [stderr]    |
[INFO] [stderr] 95 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 95 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]    |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deep_learning/layer/batch_norm.rs:236:57
[INFO] [stderr]     |
[INFO] [stderr] 236 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 236 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]     |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deep_learning/layer/softmax_with_loss.rs:122:57
[INFO] [stderr]     |
[INFO] [stderr] 122 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 122 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]     |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deep_learning/layer/dropout.rs:115:57
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 115 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]     |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deep_learning/layer/convolution.rs:261:57
[INFO] [stderr]     |
[INFO] [stderr] 261 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 261 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]     |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deep_learning/layer/pooling.rs:173:57
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 173 |     fn export(&self, file: &mut File) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]     |                                                         +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deep_learning/neural_network.rs:124:75
[INFO] [stderr]     |
[INFO] [stderr] 124 |     pub fn import_from_file(file_path: &str) -> Result<NeuralNetwork, Box<std::error::Error>> {
[INFO] [stderr]     |                                                                           ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 124 |     pub fn import_from_file(file_path: &str) -> Result<NeuralNetwork, Box<dyn std::error::Error>> {
[INFO] [stderr]     |                                                                           +++
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/deep_learning/neural_network.rs:148:44
[INFO] [stderr]     |
[INFO] [stderr] 148 |     pub fn export(&self) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                                            ^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] help: use `dyn`
[INFO] [stderr]     |
[INFO] [stderr] 148 |     pub fn export(&self) -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stderr]     |                                            +++
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]  --> src/deep_learning/layer/direct_value.rs:4:45
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stderr]   |                                             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]  --> src/deep_learning/layer/affine_direct_value.rs:2:34
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Read, Write, BufRead, BufReader, Lines};
[INFO] [stderr]   |                                  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]  --> src/deep_learning/layer/pooling.rs:2:45
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stderr]   |                                             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]  --> src/deep_learning/layer/convolution.rs:2:45
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stderr]   |                                             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]  --> src/deep_learning/layer/softmax_with_loss.rs:3:45
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stderr]   |                                             ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/deep_learning/common.rs:105:9
[INFO] [stderr]     |
[INFO] [stderr] 105 |     for i in 0..size {
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]   --> src/deep_learning/layer/network_layer.rs:21:22
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn export(&self, file: &mut File) -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]    |                      ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dw`
[INFO] [stderr]    --> src/deep_learning/layer/batch_norm.rs:144:13
[INFO] [stderr]     |
[INFO] [stderr] 144 |         let dw = backword_broadcast(&(normalized * &dout));
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_dw`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `db`
[INFO] [stderr]    --> src/deep_learning/layer/batch_norm.rs:146:13
[INFO] [stderr]     |
[INFO] [stderr] 146 |         let db = dout.sum_axis(Axis(0)).to_shared().reshape((1, w.shape()[1])).to_owned();
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_db`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `filter`
[INFO] [stderr]   --> src/deep_learning/layer/dropout.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |         let filter = neural_network::import_network_layer(lines);
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `bias`
[INFO] [stderr]   --> src/deep_learning/layer/dropout.rs:48:13
[INFO] [stderr]    |
[INFO] [stderr] 48 |         let bias = neural_network::import_network_layer(lines);
[INFO] [stderr]    |             ^^^^ help: if this is intentional, prefix it with an underscore: `_bias`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `batch_num`
[INFO] [stderr]    --> src/deep_learning/layer/convolution.rs:181:18
[INFO] [stderr]     |
[INFO] [stderr] 181 |             let (batch_num, _channel_num, _data_h, _data_w) = self.x_shape;
[INFO] [stderr]     |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_batch_num`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `filter_num`
[INFO] [stderr]    --> src/deep_learning/layer/convolution.rs:182:18
[INFO] [stderr]     |
[INFO] [stderr] 182 |             let (filter_num, _channel_num, filter_h, filter_w) = self.filter_shape;
[INFO] [stderr]     |                  ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter_num`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `batch_num`
[INFO] [stderr]    --> src/deep_learning/layer/convolution.rs:202:14
[INFO] [stderr]     |
[INFO] [stderr] 202 |         let (batch_num, channel_num, x_h, x_w) = self.x_shape;
[INFO] [stderr]     |              ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_batch_num`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `col_index`
[INFO] [stderr]    --> src/deep_learning/layer/convolution.rs:294:17
[INFO] [stderr]     |
[INFO] [stderr] 294 |             let col_index = y * filter_w + x;
[INFO] [stderr]     |                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_col_index`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/deep_learning/layer/convolution.rs:227:13
[INFO] [stderr]     |
[INFO] [stderr] 227 |         let mut df = col_x_2d.t().dot(&dout_2d).t().to_owned();
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function cannot return without recursing
[INFO] [stderr]    --> src/deep_learning/layer/convolution.rs:257:5
[INFO] [stderr]     |
[INFO] [stderr] 257 |     fn weight_sum(&self) -> f64 {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ cannot return without recursing
[INFO] [stderr] 258 |         return self.weight_sum();
[INFO] [stderr]     |                ----------------- recursive call site
[INFO] [stderr]     |
[INFO] [stderr]     = help: a `loop` may express intention better if this is on purpose
[INFO] [stderr]     = note: `#[warn(unconditional_recursion)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/deep_learning/optimizer/momentum.rs:26:13
[INFO] [stderr]    |
[INFO] [stderr] 26 |         let mut velocity = self.velocity.as_mut().unwrap();
[INFO] [stderr]    |             ----^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/deep_learning/optimizer/rmsprop.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let mut velocity = self.velocity.as_mut().unwrap();
[INFO] [stderr]    |             ----^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/deep_learning/optimizer/adagrad.rs:25:13
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let mut grad_squared_sum = self.grad_squared_sum.as_mut().unwrap();
[INFO] [stderr]    |             ----^^^^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/deep_learning/optimizer/adam.rs:35:13
[INFO] [stderr]    |
[INFO] [stderr] 35 |         let mut m = self.m.as_mut().unwrap();
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/deep_learning/optimizer/adam.rs:40:13
[INFO] [stderr]    |
[INFO] [stderr] 40 |         let mut v = self.v.as_mut().unwrap();
[INFO] [stderr]    |             ----^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: function `broadcast_rows` is never used
[INFO] [stderr]    --> src/deep_learning/layer/convolution.rs:382:4
[INFO] [stderr]     |
[INFO] [stderr] 382 | fn broadcast_rows(data: &Array2<f64>, row_num: usize) -> Array2<f64> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/deep_learning/layer/affine_direct_value.rs:100:13
[INFO] [stderr]     |
[INFO] [stderr] 100 |             plot_bias_histogram(self.value.clone().into_iter().collect(), &self.name);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/deep_learning/layer/affine_direct_value.rs:102:13
[INFO] [stderr]     |
[INFO] [stderr] 102 |             plot_histogram(self.value.clone().into_iter().collect(), &self.name);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/deep_learning/neural_network.rs:85:9
[INFO] [stderr]    |
[INFO] [stderr] 85 |         plot_rate(correct_rates, "correct_rate");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/deep_learning/neural_network.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         plot_loss(losses, "loss");
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/deep_learning/neural_network.rs:156:9
[INFO] [stderr]     |
[INFO] [stderr] 156 |         self.last_layer.export(&mut file);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: the `trn_img:` in this pattern is redundant
[INFO] [stderr]   --> src/mnist_images.rs:37:13
[INFO] [stderr]    |
[INFO] [stderr] 37 |             trn_img: trn_img,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: use shorthand field pattern: `trn_img`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_shorthand_field_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the `val_img:` in this pattern is redundant
[INFO] [stderr]   --> src/mnist_images.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |             val_img: val_img,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: use shorthand field pattern: `val_img`
[INFO] [stderr] 
[INFO] [stderr] warning: the `tst_img:` in this pattern is redundant
[INFO] [stderr]   --> src/mnist_images.rs:41:13
[INFO] [stderr]    |
[INFO] [stderr] 41 |             tst_img: tst_img,
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^ help: use shorthand field pattern: `tst_img`
[INFO] [stderr] 
[INFO] [stderr] warning: `deep_learning` (lib) generated 59 warnings (run `cargo fix --lib -p deep_learning` to apply 47 suggestions)
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]    --> src/main.rs:214:9
[INFO] [stderr]     |
[INFO] [stderr] 214 |     use super::*;
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `trn_lbl`
[INFO] [stderr]   --> src/main.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let trn_lbl = mnist.get_trn_lbl();
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_trn_lbl`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tst_lbl`
[INFO] [stderr]   --> src/main.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |     let tst_lbl = mnist.get_tst_lbl();
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_tst_lbl`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let mut trn_img_bi = Array2::<f64>::from_shape_fn(
[INFO] [stderr]    |         ----^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:58:9
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let mut tst_img_bi = Array2::<f64>::from_shape_fn(
[INFO] [stderr]    |         ----^^^^^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: constant `DROUPOUT_RATE` is never used
[INFO] [stderr]   --> src/main.rs:20:7
[INFO] [stderr]    |
[INFO] [stderr] 20 | const DROUPOUT_RATE: f64 = 0.15;
[INFO] [stderr]    |       ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SGD_LEARNING_RATE` is never used
[INFO] [stderr]   --> src/main.rs:21:7
[INFO] [stderr]    |
[INFO] [stderr] 21 | const SGD_LEARNING_RATE: f64 = 0.001;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MOMENTUM_LEARNING_RATE` is never used
[INFO] [stderr]   --> src/main.rs:22:7
[INFO] [stderr]    |
[INFO] [stderr] 22 | const MOMENTUM_LEARNING_RATE: f64 = 0.1;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `MOMENTUM_FLICTION` is never used
[INFO] [stderr]   --> src/main.rs:23:7
[INFO] [stderr]    |
[INFO] [stderr] 23 | const MOMENTUM_FLICTION: f64 = 0.9;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `RMSPROP_LEARNING_RATE` is never used
[INFO] [stderr]   --> src/main.rs:24:7
[INFO] [stderr]    |
[INFO] [stderr] 24 | const RMSPROP_LEARNING_RATE: f64 = 0.1;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `RMSPROP_FLICTION` is never used
[INFO] [stderr]   --> src/main.rs:25:7
[INFO] [stderr]    |
[INFO] [stderr] 25 | const RMSPROP_FLICTION: f64 = 0.99;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `ADAGRAD_LEARNING_RATE` is never used
[INFO] [stderr]   --> src/main.rs:26:7
[INFO] [stderr]    |
[INFO] [stderr] 26 | const ADAGRAD_LEARNING_RATE: f64 = 0.1;
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `guess_main` is never used
[INFO] [stderr]    --> src/main.rs:198:4
[INFO] [stderr]     |
[INFO] [stderr] 198 | fn guess_main() {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `measure_execute_time` is never used
[INFO] [stderr]    --> src/main.rs:218:8
[INFO] [stderr]     |
[INFO] [stderr] 218 |     fn measure_execute_time(f: &dyn Fn()) -> u128 {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufReader`, `Lines`, `Read`, `self`
[INFO] [stderr]  --> src/deep_learning/layer/direct_value.rs:4:15
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::{self, Read, Write, BufReader, BufRead, Lines};
[INFO] [stderr]   |               ^^^^  ^^^^         ^^^^^^^^^           ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]    --> src/image.rs:157:41
[INFO] [stderr]     |
[INFO] [stderr] 157 |                     print!("{}", if img[(i*width+j)] > 0.0 {"*"} else {" "});
[INFO] [stderr]     |                                         ^         ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 157 -                     print!("{}", if img[(i*width+j)] > 0.0 {"*"} else {" "});
[INFO] [stderr] 157 +                     print!("{}", if img[i*width+j] > 0.0 {"*"} else {" "});
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `lerning_rate`
[INFO] [stderr]    --> src/deep_learning/common.rs:176:13
[INFO] [stderr]     |
[INFO] [stderr] 176 |         let lerning_rate = 0.05;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_lerning_rate`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x_b`
[INFO] [stderr]     --> src/deep_learning/layer/convolution.rs:1278:14
[INFO] [stderr]      |
[INFO] [stderr] 1278 |         let (x_b, x_c, x_h, x_w) = x_shape;
[INFO] [stderr]      |              ^^^ help: if this is intentional, prefix it with an underscore: `_x_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `x_c`
[INFO] [stderr]     --> src/deep_learning/layer/convolution.rs:1278:19
[INFO] [stderr]      |
[INFO] [stderr] 1278 |         let (x_b, x_c, x_h, x_w) = x_shape;
[INFO] [stderr]      |                   ^^^ help: if this is intentional, prefix it with an underscore: `_x_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `filter_b`
[INFO] [stderr]     --> src/deep_learning/layer/convolution.rs:1280:14
[INFO] [stderr]      |
[INFO] [stderr] 1280 |         let (filter_b, filter_c, filter_h, filter_w) = filter_shape;
[INFO] [stderr]      |              ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter_b`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `filter_c`
[INFO] [stderr]     --> src/deep_learning/layer/convolution.rs:1280:24
[INFO] [stderr]      |
[INFO] [stderr] 1280 |         let (filter_b, filter_c, filter_h, filter_w) = filter_shape;
[INFO] [stderr]      |                        ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filter_c`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]    --> src/image.rs:150:17
[INFO] [stderr]     |
[INFO] [stderr] 150 |             for j in 0..width+2 {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]    --> src/image.rs:161:17
[INFO] [stderr]     |
[INFO] [stderr] 161 |             for j in 0..width+2 {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]    --> src/image.rs:177:17
[INFO] [stderr]     |
[INFO] [stderr] 177 |             for j in 0..width+2 {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `j`
[INFO] [stderr]    --> src/image.rs:188:17
[INFO] [stderr]     |
[INFO] [stderr] 188 |             for j in 0..width+2 {
[INFO] [stderr]     |                 ^ help: if this is intentional, prefix it with an underscore: `_j`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/deep_learning/layer/affine.rs:247:13
[INFO] [stderr]     |
[INFO] [stderr] 247 |         let mut x_value = arr2(&
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/deep_learning/layer/affine.rs:266:13
[INFO] [stderr]     |
[INFO] [stderr] 266 |         let mut w_value = arr2(&
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/deep_learning/layer/convolution.rs:227:13
[INFO] [stderr]     |
[INFO] [stderr] 227 |         let mut df = col_x_2d.t().dot(&dout_2d).t().to_owned();
[INFO] [stderr]     |             ----^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/deep_learning/layer/convolution.rs:420:13
[INFO] [stderr]     |
[INFO] [stderr] 420 |         let mut conv = Convolution::new_random(
[INFO] [stderr]     |             ----^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/deep_learning/graph_plotter/other.rs:255:9
[INFO] [stderr]     |
[INFO] [stderr] 255 |         plot_rate(data, "test_rate");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/deep_learning/graph_plotter/other.rs:261:9
[INFO] [stderr]     |
[INFO] [stderr] 261 |         plot_histogram(data, "test_histo");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/deep_learning/layer/affine_direct_value.rs:100:13
[INFO] [stderr]     |
[INFO] [stderr] 100 |             plot_bias_histogram(self.value.clone().into_iter().collect(), &self.name);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable `softmaxLoss` should have a snake case name
[INFO] [stderr]    --> src/deep_learning/layer/softmax_with_loss.rs:293:17
[INFO] [stderr]     |
[INFO] [stderr] 293 |         let mut softmaxLoss= SoftmaxWithLoss::new(x, t.clone());
[INFO] [stderr]     |                 ^^^^^^^^^^^ help: convert the identifier to snake case: `softmax_loss`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `TRN_IMG_SIZE` should have a snake case name
[INFO] [stderr]    --> src/mnist_images.rs:148:13
[INFO] [stderr]     |
[INFO] [stderr] 148 |         let TRN_IMG_SIZE: usize = 5000;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `trn_img_size`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `VAL_IMG_SIZE` should have a snake case name
[INFO] [stderr]    --> src/mnist_images.rs:149:13
[INFO] [stderr]     |
[INFO] [stderr] 149 |         let VAL_IMG_SIZE: usize = 1;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `val_img_size`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `TST_IMG_SIZE` should have a snake case name
[INFO] [stderr]    --> src/mnist_images.rs:150:13
[INFO] [stderr]     |
[INFO] [stderr] 150 |         let TST_IMG_SIZE: usize = 2000;
[INFO] [stderr]     |             ^^^^^^^^^^^^ help: convert the identifier to snake case: `tst_img_size`
[INFO] [stderr] 
[INFO] [stderr] warning: `deep_learning` (bin "deep_learning" test) generated 14 warnings (run `cargo fix --bin "deep_learning" --tests` to apply 5 suggestions)
[INFO] [stderr] warning: `deep_learning` (lib test) generated 75 warnings (53 duplicates) (run `cargo fix --lib -p deep_learning --tests` to apply 15 suggestions)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/deep_learning-4fb5e9d5759ff99d)
[INFO] [stdout] 
[INFO] [stdout] running 48 tests
[INFO] [stdout] test deep_learning::common::test::test_numeric_gradient2 ... ok
[INFO] [stdout] test deep_learning::common::test::test_numeric_gradient ... ok
[INFO] [stdout] test deep_learning::common::test::test_round_digit_arr1 ... ok
[INFO] [stdout] test deep_learning::common::test::test_round_digit ... ok
[INFO] [stdout] test deep_learning::layer::affine::test::test_affine_backward ... ok
[INFO] [stdout] test deep_learning::graph_plotter::other::graph_plotters_test::test_aa ... ok
[INFO] [stdout] test deep_learning::layer::batch_norm::test::test_batch_norm_backword_average ... ok
[INFO] [stdout] test deep_learning::layer::affine::test::test_affine_forward ... ok
[INFO] [stdout] test deep_learning::layer::affine_direct_value::test::test_affine_direct_value_backward ... ok
[INFO] [stdout] test deep_learning::common::test::test_norm_random_vec ... ok
[INFO] [stdout] test deep_learning::layer::batch_norm::test::test_batch_norm_calc_distribute_and_broadcast ... ok
[INFO] [stdout] test deep_learning::layer::affine::test::test_affine_new_random ... ok
[INFO] [stdout] test deep_learning::layer::batch_norm::test::test_batch_norm_calc_average_and_broadcast ... ok
[INFO] [stdout] test deep_learning::layer::convolution::test::test_convolution_backword_bias ... ok
[INFO] [stdout] test deep_learning::layer::batch_norm::test::test_batch_norm_backword_broadcast ... ok
[INFO] [stdout] test deep_learning::layer::convolution::test::test_convolution_backword_filter ... ok
[INFO] [stdout] test deep_learning::layer::convolution::test::test_convolution_broadcast_rows ... ok
[INFO] [stdout] test deep_learning::layer::convolution::test::test_convolution_backword_x ... ok
[INFO] [stdout] test deep_learning::layer::convolution::test::test_convolution_col2im ... ok
[INFO] [stdout] test deep_learning::layer::convolution::test::test_convolution_forward ... ok
[INFO] [stdout] test deep_learning::layer::convolution::test::test_convolution_im2col ... ok
[INFO] [stdout] test deep_learning::layer::convolution::test::test_convolution_new_random ... ok
[INFO] [stdout] test deep_learning::layer::pooling::test::aa ... ok
[INFO] [stdout] test deep_learning::layer::relu::test_mod::test_backward ... ok
[INFO] [stdout] test deep_learning::layer::relu::test_mod::test_forward ... ok
[INFO] [stdout] test deep_learning::layer::sigmoid::test_sigmoid_mod::test_backward ... ok
[INFO] [stdout] test deep_learning::layer::pooling::test::test_pooling_backward ... ok
[INFO] [stdout] test deep_learning::layer::sigmoid::test_sigmoid_mod::test_forward ... ok
[INFO] [stdout] test deep_learning::layer::softmax_with_loss::test_softmax_with_loss_mod::test_backward ... ok
[INFO] [stdout] test deep_learning::layer::pooling::test::test_pooling_forward ... ok
[INFO] [stdout] test deep_learning::layer::softmax_with_loss::test_softmax_with_loss_mod::test_crosss_entropy_error ... ok
[INFO] [stdout] test deep_learning::layer::softmax_with_loss::test_softmax_with_loss_mod::test_softmax ... ok
[INFO] [stdout] test deep_learning::optimizer::adagrad::test_adagrad_mod::update ... ok
[INFO] [stdout] test deep_learning::layer::batch_norm::test::test_batch_norm_forward ... ok
[INFO] [stdout] test deep_learning::optimizer::momentum::test::update ... ok
[INFO] [stdout] test deep_learning::optimizer::rmsprop::test::update ... ok
[INFO] [stdout] test deep_learning::optimizer::sgd::test::update ... ok
[INFO] [stdout] test deep_learning::optimizer::adam::test::update ... ok
[INFO] [stdout] test image::test_trans_image::test_inverse_matrix ... ok
[INFO] [stdout] test image::test_trans_image::test_new ... ok
[INFO] [stdout] test mnist_images::test::print_img_and_lbl ... ignored
[INFO] [stdout] test deep_learning::layer::convolution::test::test_convolution_pad_array4 ... ok
[INFO] [stdout] test image::test_trans_image::test_resize ... FAILED
[INFO] [stdout] test deep_learning::graph_plotter::other::graph_plotters_test::test_plot_rate ... ok
[INFO] [stdout] test deep_learning::graph_plotter::other::graph_plotters_test::test_plot_histogram ... ok
[INFO] [stdout] test deep_learning::neural_network::test_neuaral_network::test_set_input ... ok
[INFO] [stdout] test deep_learning::neural_network::test_neuaral_network::test_set_lbl ... ok
[INFO] [stdout] test deep_learning::common::test::test_random_choice ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- image::test_trans_image::test_resize stdout ----
[INFO] [stdout] Start loading mnist.
[INFO] [stdout] Load mnist resource.
[INFO] [stdout] thread 'image::test_trans_image::test_resize' panicked at 'Unable to find path to images at "data/train-images-idx3-ubyte".', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mnist-0.4.1/src/lib.rs:552:33
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55d021c3266a - std::backtrace_rs::backtrace::libunwind::trace::ha9053a9a07ca49cb
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stdout]    1:     0x55d021c3266a - std::backtrace_rs::backtrace::trace_unsynchronized::h9c2852a457ad564e
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55d021c3266a - std::sys_common::backtrace::_print_fmt::h457936fbfaa0070f
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stdout]    3:     0x55d021c3266a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h5779d7bf7f70cb0c
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55d021c5728e - core::fmt::write::h5a4baaff1bcd3eb5
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/fmt/mod.rs:1232:17
[INFO] [stdout]    5:     0x55d021c2f855 - std::io::Write::write_fmt::h478f79c628ef31d1
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/io/mod.rs:1684:15
[INFO] [stdout]    6:     0x55d021c32435 - std::sys_common::backtrace::_print::h5fcdc36060f177e8
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    7:     0x55d021c32435 - std::sys_common::backtrace::print::h54ca9458b876c8bf
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    8:     0x55d021c341ff - std::panicking::default_hook::{{closure}}::hbe471161c7664ed6
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:271:22
[INFO] [stdout]    9:     0x55d021c33ebf - std::panicking::default_hook::ha3500da57aa4ac4f
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:287:9
[INFO] [stdout]   10:     0x55d021a77a17 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hdf1b89dd137ece34
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/alloc/src/boxed.rs:2001:9
[INFO] [stdout]   11:     0x55d021a77a17 - test::test_main::{{closure}}::h9081a79f20e75698
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:135:21
[INFO] [stdout]   12:     0x55d021c3492d - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6507bddc3eebb4a5
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/alloc/src/boxed.rs:2001:9
[INFO] [stdout]   13:     0x55d021c3492d - std::panicking::rust_panic_with_hook::h50c09d000dc561d2
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:696:13
[INFO] [stdout]   14:     0x55d021c346a9 - std::panicking::begin_panic_handler::{{closure}}::h9e2b2176e00e0d9c
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:583:13
[INFO] [stdout]   15:     0x55d021c32ad6 - std::sys_common::backtrace::__rust_end_short_backtrace::h5739b8e512c09d02
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:150:18
[INFO] [stdout]   16:     0x55d021c343b2 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:579:5
[INFO] [stdout]   17:     0x55d021840043 - core::panicking::panic_fmt::hf33a1475b4dc5c3e
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panicking.rs:64:14
[INFO] [stdout]   18:     0x55d021c0c754 - mnist::images::{{closure}}::h6fbbf9ecf8eda865
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mnist-0.4.1/src/lib.rs:552:33
[INFO] [stdout]   19:     0x55d021c06aa9 - core::result::Result<T,E>::unwrap_or_else::hcaa75a1a2b77b0b8
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/result.rs:1465:23
[INFO] [stdout]   20:     0x55d021c0bf77 - mnist::images::h89e91039567e5659
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mnist-0.4.1/src/lib.rs:551:22
[INFO] [stdout]   21:     0x55d021c0ac78 - mnist::MnistBuilder::finalize::h7ba49bfd2a2ca6a0
[INFO] [stdout]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/mnist-0.4.1/src/lib.rs:405:27
[INFO] [stdout]   22:     0x55d0219565e3 - deep_learning::mnist_images::MnistImages::new::h3f7cc154814d8034
[INFO] [stdout]                                at /opt/rustwide/workdir/src/mnist_images.rs:43:13
[INFO] [stdout]   23:     0x55d021a14a09 - deep_learning::image::test_trans_image::test_resize::h40669ff5ec92d548
[INFO] [stdout]                                at /opt/rustwide/workdir/src/image.rs:143:21
[INFO] [stdout]   24:     0x55d021a149c7 - deep_learning::image::test_trans_image::test_resize::{{closure}}::h213a486238cc8e93
[INFO] [stdout]                                at /opt/rustwide/workdir/src/image.rs:141:22
[INFO] [stdout]   25:     0x55d0219b31a5 - core::ops::function::FnOnce::call_once::h915cf17bbde7c316
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   26:     0x55d021a7cdff - core::ops::function::FnOnce::call_once::h7d969581be7d0075
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   27:     0x55d021a7cdff - test::__rust_begin_short_backtrace::hca25a52684e56655
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:656:18
[INFO] [stdout]   28:     0x55d021a4e41c - test::run_test::{{closure}}::ha8ac744c4af1a4bb
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:647:30
[INFO] [stdout]   29:     0x55d021a4e41c - core::ops::function::FnOnce::call_once{{vtable.shim}}::h7b411a9ed45bdecf
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   30:     0x55d021a7bdc6 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd05328869a8ed200
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   31:     0x55d021a7bdc6 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h0c601ce20bd5b2be
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   32:     0x55d021a7bdc6 - std::panicking::try::do_call::ha4be5c164fe30854
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:487:40
[INFO] [stdout]   33:     0x55d021a7bdc6 - std::panicking::try::h604546f3609af05f
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:451:19
[INFO] [stdout]   34:     0x55d021a7bdc6 - std::panic::catch_unwind::h5bfa8afe44c9c2f9
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panic.rs:140:14
[INFO] [stdout]   35:     0x55d021a7bdc6 - test::run_test_in_process::hd50dee55dd63e6aa
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:679:27
[INFO] [stdout]   36:     0x55d021a7bdc6 - test::run_test::run_test_inner::{{closure}}::h4aa0f433aa85cea8
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:573:39
[INFO] [stdout]   37:     0x55d021a48a91 - test::run_test::run_test_inner::{{closure}}::had56431adf24b4d6
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/test/src/lib.rs:600:37
[INFO] [stdout]   38:     0x55d021a48a91 - std::sys_common::backtrace::__rust_begin_short_backtrace::ha8d9890e0c73bf13
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys_common/backtrace.rs:134:18
[INFO] [stdout]   39:     0x55d021a4e4ab - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h251832bcb4a95327
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/thread/mod.rs:560:17
[INFO] [stdout]   40:     0x55d021a4e4ab - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8fdff598fa414831
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/panic/unwind_safe.rs:271:9
[INFO] [stdout]   41:     0x55d021a4e4ab - std::panicking::try::do_call::h455dd2f7764a950f
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:487:40
[INFO] [stdout]   42:     0x55d021a4e4ab - std::panicking::try::had6f23b7b73ae72a
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panicking.rs:451:19
[INFO] [stdout]   43:     0x55d021a4e4ab - std::panic::catch_unwind::ha6a5ca3915b4dad0
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/panic.rs:140:14
[INFO] [stdout]   44:     0x55d021a4e4ab - std::thread::Builder::spawn_unchecked_::{{closure}}::h883b72ef75da6231
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/thread/mod.rs:559:30
[INFO] [stdout]   45:     0x55d021a4e4ab - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb7dff73dc8bd2ccb
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   46:     0x55d021c38cc3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h39990b24eedef2ab
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   47:     0x55d021c38cc3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h01a027258444143b
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   48:     0x55d021c38cc3 - std::sys::unix::thread::Thread::new::thread_start::ha4f1cdd9c25884ba
[INFO] [stdout]                                at /rustc/84c898d65adf2f39a5a98507f1fe0ce10a2b8dbc/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stdout]   49:     0x7f2fdb990b43 - <unknown>
[INFO] [stdout]   50:     0x7f2fdba21bb4 - __clone
[INFO] [stdout]   51:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     image::test_trans_image::test_resize
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 46 passed; 1 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.44s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "174aa685d13bf573416f8d075c91e67971db713894d63f14cf5d2f6e3d614af0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "174aa685d13bf573416f8d075c91e67971db713894d63f14cf5d2f6e3d614af0", kill_on_drop: false }`
[INFO] [stdout] 174aa685d13bf573416f8d075c91e67971db713894d63f14cf5d2f6e3d614af0
