[INFO] updating cached repository legeyda/neurocr [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/legeyda/neurocr [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/legeyda/neurocr" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/legeyda/neurocr"` [INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/legeyda/neurocr'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/legeyda/neurocr" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/legeyda/neurocr"` [INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/legeyda/neurocr'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 46838c8be4edee3452e26ef790fb982934acef9b [INFO] sha for GitHub repo legeyda/neurocr: 46838c8be4edee3452e26ef790fb982934acef9b [INFO] validating manifest of legeyda/neurocr on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of legeyda/neurocr on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing legeyda/neurocr [INFO] finished frobbing legeyda/neurocr [INFO] frobbed toml for legeyda/neurocr written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/legeyda/neurocr/Cargo.toml [INFO] started frobbing legeyda/neurocr [INFO] finished frobbing legeyda/neurocr [INFO] frobbed toml for legeyda/neurocr written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/legeyda/neurocr/Cargo.toml [INFO] crate legeyda/neurocr already has a lockfile, it will not be regenerated [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking legeyda/neurocr against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-6/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/legeyda/neurocr:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 247bfdc2308309037a344ce90df1a8fcaed8041006469b6393215e4a08c2a301 [INFO] running `"docker" "start" "-a" "247bfdc2308309037a344ce90df1a8fcaed8041006469b6393215e4a08c2a301"` [INFO] [stderr] Checking mnist v0.4.0 [INFO] [stderr] Checking num-bigint v0.1.41 [INFO] [stderr] Checking simple_logger v0.5.0 [INFO] [stderr] Checking num-rational v0.1.40 [INFO] [stderr] Checking num v0.1.41 [INFO] [stderr] Checking chrono v0.4.0 [INFO] [stderr] Checking rulinalg v0.4.2 [INFO] [stderr] Checking env_logger v0.5.3 [INFO] [stderr] Checking neurocr v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/network.rs:500:2 [INFO] [stderr] | [INFO] [stderr] 500 | /// let us teach network to differ horizontal from vertial lines on 2-by-2 image [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 501 | debug!(""); [INFO] [stderr] | ----------- rustdoc does not generate documentation for macro expansions [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_doc_comments)] on by default [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/network.rs:526:2 [INFO] [stderr] | [INFO] [stderr] 526 | /// let us teach network to differ horizontal from vertial lines on 2-by-2 image [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 527 | debug!(""); [INFO] [stderr] | ----------- rustdoc does not generate documentation for macro expansions [INFO] [stderr] | [INFO] [stderr] warning: unused doc comment [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] --> src/network.rs:500:2 [INFO] [stderr] [INFO] [stderr] | [INFO] [stderr] 500 | /// let us teach network to differ horizontal from vertial lines on 2-by-2 image [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 501 | debug!(""); [INFO] [stderr] | ----------- rustdoc does not generate documentation for macro expansions [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_doc_comments)] on by default [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/network.rs:561:2 [INFO] [stderr] | [INFO] [stderr] 561 | /// let us teach network to differ horizontal from vertial lines on 2-by-2 image [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 562 | debug!(""); [INFO] [stderr] | ----------- rustdoc does not generate documentation for macro expansions [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/network.rs:526:2 [INFO] [stderr] | [INFO] [stderr] 526 | /// let us teach network to differ horizontal from vertial lines on 2-by-2 image [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 527 | debug!(""); [INFO] [stderr] | ----------- rustdoc does not generate documentation for macro expansions [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused doc comment [INFO] [stderr] --> src/network.rs:561:2 [INFO] [stderr] | [INFO] [stderr] 561 | /// let us teach network to differ horizontal from vertial lines on 2-by-2 image [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] 562 | debug!(""); [INFO] [stderr] | ----------- rustdoc does not generate documentation for macro expansions [INFO] [stderr] | [INFO] [stderr] = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion [INFO] [stderr] [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stderr] --> src/lib.rs:5:1 [INFO] [stderr] | [INFO] [stderr] 5 | #[macro_use] [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::vec::Vec` [INFO] [stderr] --> src/mnistfiles.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::vec::Vec; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Fn` [INFO] [stderr] --> src/network.rs:18:26 [INFO] [stderr] | [INFO] [stderr] 18 | use std::ops::{Add, Mul, Fn}; [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around assigned value [INFO] [stderr] --> src/network.rs:195:17 [INFO] [stderr] | [INFO] [stderr] 195 | let mut der = (&outputs[n-1] - expected_output); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead. [INFO] [stderr] --> src/mnistfiles.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::env::home_dir; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(deprecated)] on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead. [INFO] [stderr] --> src/mnistfiles.rs:13:8 [INFO] [stderr] | [INFO] [stderr] 13 | match home_dir() { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead. [INFO] [stderr] --> src/mnistfiles.rs:25:8 [INFO] [stderr] | [INFO] [stderr] 25 | match home_dir() { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::vec::Vec` [INFO] [stderr] --> src/mnistfiles.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | use std::vec::Vec; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `Fn` [INFO] [stderr] --> src/network.rs:18:26 [INFO] [stderr] | [INFO] [stderr] 18 | use std::ops::{Add, Mul, Fn}; [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around assigned value [INFO] [stderr] --> src/network.rs:195:17 [INFO] [stderr] | [INFO] [stderr] 195 | let mut der = (&outputs[n-1] - expected_output); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead. [INFO] [stderr] --> src/mnistfiles.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::env::home_dir; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(deprecated)] on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead. [INFO] [stderr] --> src/mnistfiles.rs:13:8 [INFO] [stderr] | [INFO] [stderr] 13 | match home_dir() { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::env::home_dir': This function's behavior is unexpected and probably not what you want. Consider using the home_dir function from https://crates.io/crates/dirs instead. [INFO] [stderr] --> src/mnistfiles.rs:25:8 [INFO] [stderr] | [INFO] [stderr] 25 | match home_dir() { [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ignored` [INFO] [stderr] --> src/network.rs:76:61 [INFO] [stderr] | [INFO] [stderr] 76 | biases: Vector::zeros(num_neurons) .apply(&(|ignored| generator())), [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_ignored` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ignored` [INFO] [stderr] --> src/network.rs:77:61 [INFO] [stderr] | [INFO] [stderr] 77 | weights: Matrix::zeros(num_neurons, num_inputs).apply(&(|ignored| generator())) [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_ignored` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n` [INFO] [stderr] --> src/network.rs:272:7 [INFO] [stderr] | [INFO] [stderr] 272 | let n = data.len(); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_n` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/math.rs:41:7 [INFO] [stderr] | [INFO] [stderr] 41 | let mut value: ScalarType = subject.eval(&estimation); [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 is never used: `random` [INFO] [stderr] --> src/network.rs:61:1 [INFO] [stderr] | [INFO] [stderr] 61 | fn random() -> T where T: Float + Rand { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `minimize` [INFO] [stderr] --> src/math.rs:24:1 [INFO] [stderr] | [INFO] [stderr] 24 | / fn minimize(subject: &Functional, [INFO] [stderr] 25 | | mut estimation: VectorType, [INFO] [stderr] 26 | | mut step: ScalarType, [INFO] [stderr] 27 | | on_new: &Fn(&VectorType) -> bool, [INFO] [stderr] ... | [INFO] [stderr] 63 | | estimation [INFO] [stderr] 64 | | } [INFO] [stderr] | |_^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/mnistfiles.rs:40:2 [INFO] [stderr] | [INFO] [stderr] 40 | create_dir_all(cache_dir.as_path()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ignored` [INFO] [stderr] --> src/network.rs:76:61 [INFO] [stderr] | [INFO] [stderr] 76 | biases: Vector::zeros(num_neurons) .apply(&(|ignored| generator())), [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_ignored` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ignored` [INFO] [stderr] --> src/network.rs:77:61 [INFO] [stderr] | [INFO] [stderr] 77 | weights: Matrix::zeros(num_neurons, num_inputs).apply(&(|ignored| generator())) [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_ignored` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n` [INFO] [stderr] --> src/network.rs:272:7 [INFO] [stderr] | [INFO] [stderr] 272 | let n = data.len(); [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_n` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/math.rs:41:7 [INFO] [stderr] | [INFO] [stderr] 41 | let mut value: ScalarType = subject.eval(&estimation); [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 is never used: `test_sigmoid` [INFO] [stderr] --> src/network.rs:39:1 [INFO] [stderr] | [INFO] [stderr] 39 | fn test_sigmoid() { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `random` [INFO] [stderr] --> src/network.rs:61:1 [INFO] [stderr] | [INFO] [stderr] 61 | fn random() -> T where T: Float + Rand { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `asses_quality` [INFO] [stderr] --> src/network.rs:549:1 [INFO] [stderr] | [INFO] [stderr] 549 | fn asses_quality(network: Network, data: Vec>) -> f32 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `minimize` [INFO] [stderr] --> src/math.rs:24:1 [INFO] [stderr] | [INFO] [stderr] 24 | / fn minimize(subject: &Functional, [INFO] [stderr] 25 | | mut estimation: VectorType, [INFO] [stderr] 26 | | mut step: ScalarType, [INFO] [stderr] 27 | | on_new: &Fn(&VectorType) -> bool, [INFO] [stderr] ... | [INFO] [stderr] 63 | | estimation [INFO] [stderr] 64 | | } [INFO] [stderr] | |_^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/mnistfiles.rs:40:2 [INFO] [stderr] | [INFO] [stderr] 40 | create_dir_all(cache_dir.as_path()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.00s [INFO] running `"docker" "inspect" "247bfdc2308309037a344ce90df1a8fcaed8041006469b6393215e4a08c2a301"` [INFO] running `"docker" "rm" "-f" "247bfdc2308309037a344ce90df1a8fcaed8041006469b6393215e4a08c2a301"` [INFO] [stdout] 247bfdc2308309037a344ce90df1a8fcaed8041006469b6393215e4a08c2a301