[INFO] crate rusty-machine 0.5.4 is already in cache
[INFO] checking rusty-machine-0.5.4 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] extracting crate rusty-machine 0.5.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rusty-machine 0.5.4 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate rusty-machine 0.5.4
[INFO] finished tweaking crates.io crate rusty-machine 0.5.4
[INFO] tweaked toml for crates.io crate rusty-machine 0.5.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4b27dfc2e6d85e8298d60b27f45e4569321fd723c59732200b879274232e7cdd
[INFO] running `"docker" "start" "-a" "4b27dfc2e6d85e8298d60b27f45e4569321fd723c59732200b879274232e7cdd"`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking rulinalg v0.3.7
[INFO] [stderr]     Checking rusty-machine v0.5.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/data/transforms/minmax.rs:115:22
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let scales = try!(input_min_max.iter()
[INFO] [stderr]     |                      ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/data/transforms/minmax.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |             try!(self.fit(&inputs));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/data/transforms/standardize.rs:97:28
[INFO] [stderr]    |
[INFO] [stderr] 97 |             let variance = try!(inputs.variance(Axes::Row).map_err(|_| {
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/data/transforms/standardize.rs:113:13
[INFO] [stderr]     |
[INFO] [stderr] 113 |             try!(self.fit(&inputs));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/learning/gmm.rs:82:27
[INFO] [stderr]    |
[INFO] [stderr] 82 |             let cov_mat = try!(self.initialize_covariances(inputs, reg_value));
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/learning/gmm.rs:93:40
[INFO] [stderr]    |
[INFO] [stderr] 93 |             let (weights, log_lik_1) = try!(self.membership_weights(inputs));
[INFO] [stderr]    |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gmm.rs:110:16
[INFO] [stderr]     |
[INFO] [stderr] 110 |             Ok(try!(self.membership_weights(inputs)).0)
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gmm.rs:229:32
[INFO] [stderr]     |
[INFO] [stderr] 229 |                 let variance = try!(inputs.variance(Axes::Row));
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gmm.rs:265:33
[INFO] [stderr]     |
[INFO] [stderr] 265 |                 let covar_inv = try!(cov.inverse().map_err(Error::from));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/learning/k_means.rs:93:9
[INFO] [stderr]    |
[INFO] [stderr] 93 |         try!(self.init_centroids(inputs));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/learning/k_means.rs:98:36
[INFO] [stderr]    |
[INFO] [stderr] 98 |             let (idx, distances) = try!(self.get_closest_centroids(inputs));
[INFO] [stderr]    |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/k_means.rs:194:29
[INFO] [stderr]     |
[INFO] [stderr] 194 |             let centroids = try!(self.init_algorithm.init_centroids(self.k, inputs));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gp.rs:151:29
[INFO] [stderr]     |
[INFO] [stderr] 151 |             let post_mean = try!(self.ker_mat(inputs, t_data)) * alpha;
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gp.rs:164:25
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let train_mat = try!((ker_mat + noise_mat).cholesky().map_err(|_| {
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gp.rs:194:36
[INFO] [stderr]     |
[INFO] [stderr] 194 |             let post_mean = mean + try!(self.ker_mat(inputs, t_data)) * alpha;
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gp.rs:196:28
[INFO] [stderr]     |
[INFO] [stderr] 196 |             let test_mat = try!(self.ker_mat(inputs, t_data));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gp.rs:205:28
[INFO] [stderr]     |
[INFO] [stderr] 205 |             let post_var = try!(self.ker_mat(inputs, inputs)) - &v_mat * v_mat.transpose();
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/svm.rs:133:27
[INFO] [stderr]     |
[INFO] [stderr] 133 |             let ker_mat = try!(self.ker_mat(&full_inputs, train_inputs));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/naive_bayes.rs:116:25
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let log_probs = try!(self.get_log_probs(inputs));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/naive_bayes.rs:157:25
[INFO] [stderr]     |
[INFO] [stderr] 157 |             let class = try!(NaiveBayes::<T>::find_class(row));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/naive_bayes.rs:173:17
[INFO] [stderr]     |
[INFO] [stderr] 173 |                 try!(distr.update_params(&inputs.select_rows(&c), idx));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/naive_bayes.rs:268:19
[INFO] [stderr]     |
[INFO] [stderr] 268 |         let var = try!(data.variance(Axes::Row).map_err(|_| {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/analysis/cross_validation.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |         let _ = try!(model.train(&train_inputs, &train_targets));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/analysis/cross_validation.rs:71:23
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let outputs = try!(model.predict(&test_inputs));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]    --> src/lib.rs:108:1
[INFO] [stderr]     |
[INFO] [stderr] 108 | #[macro_use]
[INFO] [stderr]     | ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/learning/error.rs:15:16
[INFO] [stderr]    |
[INFO] [stderr] 15 |     error: Box<error::Error + Send + Sync>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error + Send + Sync`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/learning/error.rs:39:27
[INFO] [stderr]    |
[INFO] [stderr] 39 |         where E: Into<Box<error::Error + Send + Sync>>
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/learning/toolkit/kernel.rs:292:9
[INFO] [stderr]     |
[INFO] [stderr] 292 |         (self.ampl * x.exp())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/learning/toolkit/kernel.rs:354:9
[INFO] [stderr]     |
[INFO] [stderr] 354 |         (self.ampl * x.exp())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/learning/error.rs:62:46
[INFO] [stderr]    |
[INFO] [stderr] 62 |         Error::new(ErrorKind::LinearAlgebra, <rulinalg::error::Error as error::Error>::description(&e))
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/data/transforms/minmax.rs:115:22
[INFO] [stderr]     |
[INFO] [stderr] 115 |         let scales = try!(input_min_max.iter()
[INFO] [stderr]     |                      ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/data/transforms/minmax.rs:140:13
[INFO] [stderr]     |
[INFO] [stderr] 140 |             try!(self.fit(&inputs));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/data/transforms/standardize.rs:97:28
[INFO] [stderr]    |
[INFO] [stderr] 97 |             let variance = try!(inputs.variance(Axes::Row).map_err(|_| {
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/data/transforms/standardize.rs:113:13
[INFO] [stderr]     |
[INFO] [stderr] 113 |             try!(self.fit(&inputs));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/learning/gmm.rs:82:27
[INFO] [stderr]    |
[INFO] [stderr] 82 |             let cov_mat = try!(self.initialize_covariances(inputs, reg_value));
[INFO] [stderr]    |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/learning/gmm.rs:93:40
[INFO] [stderr]    |
[INFO] [stderr] 93 |             let (weights, log_lik_1) = try!(self.membership_weights(inputs));
[INFO] [stderr]    |                                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gmm.rs:110:16
[INFO] [stderr]     |
[INFO] [stderr] 110 |             Ok(try!(self.membership_weights(inputs)).0)
[INFO] [stderr]     |                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gmm.rs:229:32
[INFO] [stderr]     |
[INFO] [stderr] 229 |                 let variance = try!(inputs.variance(Axes::Row));
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gmm.rs:265:33
[INFO] [stderr]     |
[INFO] [stderr] 265 |                 let covar_inv = try!(cov.inverse().map_err(Error::from));
[INFO] [stderr]     |                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/learning/k_means.rs:93:9
[INFO] [stderr]    |
[INFO] [stderr] 93 |         try!(self.init_centroids(inputs));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/learning/k_means.rs:98:36
[INFO] [stderr]    |
[INFO] [stderr] 98 |             let (idx, distances) = try!(self.get_closest_centroids(inputs));
[INFO] [stderr]    |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/k_means.rs:194:29
[INFO] [stderr]     |
[INFO] [stderr] 194 |             let centroids = try!(self.init_algorithm.init_centroids(self.k, inputs));
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gp.rs:151:29
[INFO] [stderr]     |
[INFO] [stderr] 151 |             let post_mean = try!(self.ker_mat(inputs, t_data)) * alpha;
[INFO] [stderr]     |                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gp.rs:164:25
[INFO] [stderr]     |
[INFO] [stderr] 164 |         let train_mat = try!((ker_mat + noise_mat).cholesky().map_err(|_| {
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gp.rs:194:36
[INFO] [stderr]     |
[INFO] [stderr] 194 |             let post_mean = mean + try!(self.ker_mat(inputs, t_data)) * alpha;
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gp.rs:196:28
[INFO] [stderr]     |
[INFO] [stderr] 196 |             let test_mat = try!(self.ker_mat(inputs, t_data));
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/gp.rs:205:28
[INFO] [stderr]     |
[INFO] [stderr] 205 |             let post_var = try!(self.ker_mat(inputs, inputs)) - &v_mat * v_mat.transpose();
[INFO] [stderr]     |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/svm.rs:133:27
[INFO] [stderr]     |
[INFO] [stderr] 133 |             let ker_mat = try!(self.ker_mat(&full_inputs, train_inputs));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/naive_bayes.rs:116:25
[INFO] [stderr]     |
[INFO] [stderr] 116 |         let log_probs = try!(self.get_log_probs(inputs));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/naive_bayes.rs:157:25
[INFO] [stderr]     |
[INFO] [stderr] 157 |             let class = try!(NaiveBayes::<T>::find_class(row));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/naive_bayes.rs:173:17
[INFO] [stderr]     |
[INFO] [stderr] 173 |                 try!(distr.update_params(&inputs.select_rows(&c), idx));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/learning/naive_bayes.rs:268:19
[INFO] [stderr]     |
[INFO] [stderr] 268 |         let var = try!(data.variance(Axes::Row).map_err(|_| {
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/analysis/cross_validation.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |         let _ = try!(model.train(&train_inputs, &train_targets));
[INFO] [stderr]    |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/analysis/cross_validation.rs:71:23
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let outputs = try!(model.predict(&test_inputs));
[INFO] [stderr]    |                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/learning/error.rs:15:16
[INFO] [stderr]    |
[INFO] [stderr] 15 |     error: Box<error::Error + Send + Sync>,
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error + Send + Sync`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/learning/error.rs:39:27
[INFO] [stderr]    |
[INFO] [stderr] 39 |         where E: Into<Box<error::Error + Send + Sync>>
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/learning/toolkit/kernel.rs:292:9
[INFO] [stderr]     |
[INFO] [stderr] 292 |         (self.ampl * x.exp())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/learning/toolkit/kernel.rs:354:9
[INFO] [stderr]     |
[INFO] [stderr] 354 |         (self.ampl * x.exp())
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/learning/error.rs:62:46
[INFO] [stderr]    |
[INFO] [stderr] 62 |         Error::new(ErrorKind::LinearAlgebra, <rulinalg::error::Error as error::Error>::description(&e))
[INFO] [stderr]    |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/learning/error.rs:68:20
[INFO] [stderr]    |
[INFO] [stderr] 68 |         self.error.description()
[INFO] [stderr]    |                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]   --> src/learning/error.rs:68:20
[INFO] [stderr]    |
[INFO] [stderr] 68 |         self.error.description()
[INFO] [stderr]    |                    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 31 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> tests/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/analysis/confusion_matrix.rs:98:24
[INFO] [stderr]     |
[INFO] [stderr] 98  |           let expected = matrix!(2, 0, 0;
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 99  | |                                0, 0, 1;
[INFO] [stderr] 100 | |                                1, 0, 2);
[INFO] [stderr]     | |_______________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/analysis/confusion_matrix.rs:113:24
[INFO] [stderr]     |
[INFO] [stderr] 113 |           let expected = matrix!(2, 0, 1;
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 114 | |                                1, 0, 0;
[INFO] [stderr] 115 | |                                0, 0, 2);
[INFO] [stderr]     | |_______________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/analysis/confusion_matrix.rs:128:24
[INFO] [stderr]     |
[INFO] [stderr] 128 |           let expected = matrix!(0, 0;
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 129 | |                                0, 0);
[INFO] [stderr]     | |____________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/analysis/confusion_matrix.rs:142:24
[INFO] [stderr]     |
[INFO] [stderr] 142 |           let expected = matrix!(0, 0;
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 143 | |                                0, 0);
[INFO] [stderr]     | |____________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: this method call currently resolves to `<&[T; N] as IntoIterator>::into_iter` (due to autoref coercions), but that might change in the future when `IntoIterator` impls for arrays are added.
[INFO] [stderr]    --> src/analysis/confusion_matrix.rs:156:24
[INFO] [stderr]     |
[INFO] [stderr] 156 |           let expected = matrix!(0, 0;
[INFO] [stderr]     |  ________________________^
[INFO] [stderr] 157 | |                                0, 0);
[INFO] [stderr]     | |____________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #66145 <https://github.com/rust-lang/rust/issues/66145>
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]    --> src/data/transforms/minmax.rs:228:9
[INFO] [stderr]     |
[INFO] [stderr] 228 |         transformed[[0, 0]].abs() < 1e-10;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]    --> src/data/transforms/minmax.rs:229:9
[INFO] [stderr]     |
[INFO] [stderr] 229 |         transformed[[0, 1]].abs() < 1e-10;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]    --> src/data/transforms/minmax.rs:230:9
[INFO] [stderr]     |
[INFO] [stderr] 230 |         (transformed[[1, 0]] - 1.0).abs() < 1e-10;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]    --> src/data/transforms/minmax.rs:231:9
[INFO] [stderr]     |
[INFO] [stderr] 231 |         (transformed[[1, 1]] - 1.0).abs() < 1e-10;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]    --> src/data/transforms/minmax.rs:245:9
[INFO] [stderr]     |
[INFO] [stderr] 245 |         (transformed[[0, 0]] - 1.0).abs() < 1e-10;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]    --> src/data/transforms/minmax.rs:246:9
[INFO] [stderr]     |
[INFO] [stderr] 246 |         (transformed[[0, 1]] - 1.0).abs() < 1e-10;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]    --> src/data/transforms/minmax.rs:247:9
[INFO] [stderr]     |
[INFO] [stderr] 247 |         (transformed[[1, 0]] - 3.0).abs() < 1e-10;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]    --> src/data/transforms/minmax.rs:248:9
[INFO] [stderr]     |
[INFO] [stderr] 248 |         (transformed[[1, 1]] - 3.0).abs() < 1e-10;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 43 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.08s
[INFO] running `"docker" "inspect" "4b27dfc2e6d85e8298d60b27f45e4569321fd723c59732200b879274232e7cdd"`
[INFO] running `"docker" "rm" "-f" "4b27dfc2e6d85e8298d60b27f45e4569321fd723c59732200b879274232e7cdd"`
[INFO] [stdout] 4b27dfc2e6d85e8298d60b27f45e4569321fd723c59732200b879274232e7cdd