Nov 16 18:43:23.665 INFO testing mwalczyk/spectrum_learn_rs against try#2e026d6e5d7621634147ad4c8074f1d964dbb1be for pr-55982
Nov 16 18:43:23.665 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-2/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 16 18:43:23.867 INFO [stdout] 5c66fc7d446c2347e5a9ecf46f8ec7647ff95185f56f974047eb98c289d2173b
Nov 16 18:43:23.871 INFO running `"docker" "start" "-a" "5c66fc7d446c2347e5a9ecf46f8ec7647ff95185f56f974047eb98c289d2173b"`
Nov 16 18:43:25.043 INFO [stderr] usermod: no changes
Nov 16 18:43:25.261 INFO [stderr]    Compiling shared_library v0.1.5
Nov 16 18:43:25.264 INFO [stderr]    Compiling csv v0.15.0
Nov 16 18:43:25.286 INFO [stderr]    Compiling x11-dl v2.12.0
Nov 16 18:43:25.291 INFO [stderr]    Compiling libloading v0.3.4
Nov 16 18:43:26.491 INFO [stderr]    Compiling dlib v0.3.1
Nov 16 18:43:26.629 INFO [stderr]    Compiling osmesa-sys v0.1.2
Nov 16 18:43:27.131 INFO [stderr]    Compiling wayland-sys v0.7.8
Nov 16 18:43:29.793 INFO [stderr]    Compiling wayland-client v0.7.8
Nov 16 18:43:32.307 INFO [stderr]    Compiling wayland-window v0.4.4
Nov 16 18:43:32.307 INFO [stderr]    Compiling wayland-kbd v0.6.3
Nov 16 18:43:35.673 INFO [stderr]    Compiling winit v0.5.11
Nov 16 18:43:40.451 INFO [stderr]    Compiling glutin v0.7.4
Nov 16 18:43:43.369 INFO [stderr]    Compiling spectrum_learn_rs v0.1.0 (/source)
Nov 16 18:43:43.950 INFO [stderr] warning: unused imports: `GLboolean`, `GLfloat`, `GLsizeiptr`
Nov 16 18:43:43.950 INFO [stderr]  --> src/program.rs:3:17
Nov 16 18:43:43.951 INFO [stderr]   |
Nov 16 18:43:43.951 INFO [stderr] 3 | use gl::types::{GLfloat, GLenum, GLuint, GLint, GLchar, GLsizeiptr, GLboolean};
Nov 16 18:43:43.951 INFO [stderr]   |                 ^^^^^^^                                 ^^^^^^^^^^  ^^^^^^^^^
Nov 16 18:43:43.951 INFO [stderr]   |
Nov 16 18:43:43.951 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 16 18:43:43.951 INFO [stderr] 
Nov 16 18:43:43.951 INFO [stderr] warning: unused import: `std::mem`
Nov 16 18:43:43.951 INFO [stderr]  --> src/program.rs:4:5
Nov 16 18:43:43.951 INFO [stderr]   |
Nov 16 18:43:43.951 INFO [stderr] 4 | use std::mem;
Nov 16 18:43:43.951 INFO [stderr]   |     ^^^^^^^^
Nov 16 18:43:43.951 INFO [stderr] 
Nov 16 18:43:43.951 INFO [stderr] warning: unused import: `std::error::Error`
Nov 16 18:43:43.951 INFO [stderr]  --> src/program.rs:9:5
Nov 16 18:43:43.951 INFO [stderr]   |
Nov 16 18:43:43.951 INFO [stderr] 9 | use std::error::Error;
Nov 16 18:43:43.951 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Nov 16 18:43:43.951 INFO [stderr] 
Nov 16 18:43:43.953 INFO [stderr] warning: unused imports: `GLboolean`, `GLchar`, `GLenum`, `GLint`, `GLuint`
Nov 16 18:43:43.954 INFO [stderr]   --> src/main.rs:11:26
Nov 16 18:43:43.954 INFO [stderr]    |
Nov 16 18:43:43.954 INFO [stderr] 11 | use gl::types::{GLfloat, GLenum, GLuint, GLint, GLchar, GLsizeiptr, GLboolean};
Nov 16 18:43:43.954 INFO [stderr]    |                          ^^^^^^  ^^^^^^  ^^^^^  ^^^^^^              ^^^^^^^^^
Nov 16 18:43:43.954 INFO [stderr] 
Nov 16 18:43:43.955 INFO [stderr] warning: doc comment not used by rustdoc
Nov 16 18:43:43.955 INFO [stderr]   --> src/main.rs:49:5
Nov 16 18:43:43.955 INFO [stderr]    |
Nov 16 18:43:43.955 INFO [stderr] 49 |     /// Setup the window
Nov 16 18:43:43.955 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:43.955 INFO [stderr]    |
Nov 16 18:43:43.955 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Nov 16 18:43:43.955 INFO [stderr] 
Nov 16 18:43:43.955 INFO [stderr] warning: doc comment not used by rustdoc
Nov 16 18:43:43.955 INFO [stderr]   --> src/main.rs:80:9
Nov 16 18:43:43.955 INFO [stderr]    |
Nov 16 18:43:43.955 INFO [stderr] 80 |         /// Create a VBO and VAO for rendering the scatter plot
Nov 16 18:43:43.955 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:43.955 INFO [stderr] 
Nov 16 18:43:43.955 INFO [stderr] warning: doc comment not used by rustdoc
Nov 16 18:43:43.955 INFO [stderr]   --> src/main.rs:98:9
Nov 16 18:43:43.955 INFO [stderr]    |
Nov 16 18:43:43.955 INFO [stderr] 98 |         /// Create a VBO and VAO for rendering the best-fit line
Nov 16 18:43:43.955 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:43.955 INFO [stderr] 
Nov 16 18:43:43.955 INFO [stderr] warning: doc comment not used by rustdoc
Nov 16 18:43:43.955 INFO [stderr]    --> src/main.rs:116:9
Nov 16 18:43:43.955 INFO [stderr]     |
Nov 16 18:43:43.955 INFO [stderr] 116 |         /// Bind the shader program that will be used to draw the
Nov 16 18:43:43.955 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:43.955 INFO [stderr] 
Nov 16 18:43:44.087 INFO [stderr] warning: unused variable: `window_size`
Nov 16 18:43:44.087 INFO [stderr]   --> src/main.rs:53:9
Nov 16 18:43:44.087 INFO [stderr]    |
Nov 16 18:43:44.087 INFO [stderr] 53 |     let window_size = window.get_inner_size();
Nov 16 18:43:44.087 INFO [stderr]    |         ^^^^^^^^^^^ help: consider using `_window_size` instead
Nov 16 18:43:44.087 INFO [stderr]    |
Nov 16 18:43:44.087 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 16 18:43:44.087 INFO [stderr] 
Nov 16 18:43:44.087 INFO [stderr] warning: unused variable: `shader_program`
Nov 16 18:43:44.087 INFO [stderr]   --> src/main.rs:67:13
Nov 16 18:43:44.087 INFO [stderr]    |
Nov 16 18:43:44.087 INFO [stderr] 67 |     let mut shader_program = 0;
Nov 16 18:43:44.087 INFO [stderr]    |             ^^^^^^^^^^^^^^ help: consider using `_shader_program` instead
Nov 16 18:43:44.087 INFO [stderr] 
Nov 16 18:43:44.099 INFO [stderr] warning: variable does not need to be mutable
Nov 16 18:43:44.099 INFO [stderr]   --> src/main.rs:67:9
Nov 16 18:43:44.099 INFO [stderr]    |
Nov 16 18:43:44.099 INFO [stderr] 67 |     let mut shader_program = 0;
Nov 16 18:43:44.099 INFO [stderr]    |         ----^^^^^^^^^^^^^^
Nov 16 18:43:44.099 INFO [stderr]    |         |
Nov 16 18:43:44.099 INFO [stderr]    |         help: remove this `mut`
Nov 16 18:43:44.099 INFO [stderr]    |
Nov 16 18:43:44.099 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 16 18:43:44.099 INFO [stderr] 
Nov 16 18:43:44.106 INFO [stderr] warning: struct is never constructed: `Line`
Nov 16 18:43:44.107 INFO [stderr]  --> src/linear_regression.rs:1:1
Nov 16 18:43:44.107 INFO [stderr]   |
Nov 16 18:43:44.107 INFO [stderr] 1 | pub struct Line {
Nov 16 18:43:44.107 INFO [stderr]   | ^^^^^^^^^^^^^^^
Nov 16 18:43:44.107 INFO [stderr]   |
Nov 16 18:43:44.107 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 16 18:43:44.107 INFO [stderr] 
Nov 16 18:43:44.107 INFO [stderr] warning: struct is never constructed: `Point`
Nov 16 18:43:44.107 INFO [stderr]  --> src/linear_regression.rs:6:1
Nov 16 18:43:44.107 INFO [stderr]   |
Nov 16 18:43:44.107 INFO [stderr] 6 | pub struct Point {
Nov 16 18:43:44.107 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Nov 16 18:43:44.107 INFO [stderr] 
Nov 16 18:43:44.107 INFO [stderr] warning: method is never used: `learning_rate`
Nov 16 18:43:44.107 INFO [stderr]   --> src/linear_regression.rs:33:5
Nov 16 18:43:44.107 INFO [stderr]    |
Nov 16 18:43:44.107 INFO [stderr] 33 |     pub fn learning_rate(mut self, rate: f32) -> LinearRegression<'a> {
Nov 16 18:43:44.107 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:44.107 INFO [stderr] 
Nov 16 18:43:44.107 INFO [stderr] warning: method is never used: `unbind`
Nov 16 18:43:44.107 INFO [stderr]    --> src/program.rs:100:5
Nov 16 18:43:44.107 INFO [stderr]     |
Nov 16 18:43:44.107 INFO [stderr] 100 |     pub fn unbind(&self) {
Nov 16 18:43:44.107 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:44.107 INFO [stderr] 
Nov 16 18:43:44.127 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 18:43:44.127 INFO [stderr]   --> src/main.rs:70:9
Nov 16 18:43:44.127 INFO [stderr]    |
Nov 16 18:43:44.127 INFO [stderr] 70 |         window.make_current();
Nov 16 18:43:44.127 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:44.127 INFO [stderr]    |
Nov 16 18:43:44.127 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 16 18:43:44.127 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 18:43:44.127 INFO [stderr] 
Nov 16 18:43:44.127 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 18:43:44.127 INFO [stderr]    --> src/main.rs:154:9
Nov 16 18:43:44.127 INFO [stderr]     |
Nov 16 18:43:44.127 INFO [stderr] 154 |         window.swap_buffers();
Nov 16 18:43:44.127 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:44.127 INFO [stderr]     |
Nov 16 18:43:44.127 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 18:43:44.127 INFO [stderr] 
Nov 16 18:43:48.171 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.10s
Nov 16 18:43:48.182 INFO [stderr] su: No module specific data is present
Nov 16 18:43:50.233 INFO running `"docker" "inspect" "5c66fc7d446c2347e5a9ecf46f8ec7647ff95185f56f974047eb98c289d2173b"`
Nov 16 18:43:50.521 INFO running `"docker" "rm" "-f" "5c66fc7d446c2347e5a9ecf46f8ec7647ff95185f56f974047eb98c289d2173b"`
Nov 16 18:43:50.831 INFO [stdout] 5c66fc7d446c2347e5a9ecf46f8ec7647ff95185f56f974047eb98c289d2173b
Nov 16 18:43:50.835 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-2/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 16 18:43:51.438 INFO [stdout] 2e0f4d868b371a2218388a553f03534023fccc2a631a941fb3a9f51834be76e2
Nov 16 18:43:51.443 INFO running `"docker" "start" "-a" "2e0f4d868b371a2218388a553f03534023fccc2a631a941fb3a9f51834be76e2"`
Nov 16 18:43:52.802 INFO [stderr] usermod: no changes
Nov 16 18:43:52.981 INFO [stderr]    Compiling spectrum_learn_rs v0.1.0 (/source)
Nov 16 18:43:53.563 INFO [stderr] warning: unused imports: `GLboolean`, `GLfloat`, `GLsizeiptr`
Nov 16 18:43:53.563 INFO [stderr]  --> src/program.rs:3:17
Nov 16 18:43:53.563 INFO [stderr]   |
Nov 16 18:43:53.563 INFO [stderr] 3 | use gl::types::{GLfloat, GLenum, GLuint, GLint, GLchar, GLsizeiptr, GLboolean};
Nov 16 18:43:53.563 INFO [stderr]   |                 ^^^^^^^                                 ^^^^^^^^^^  ^^^^^^^^^
Nov 16 18:43:53.563 INFO [stderr]   |
Nov 16 18:43:53.563 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 16 18:43:53.563 INFO [stderr] 
Nov 16 18:43:53.563 INFO [stderr] warning: unused import: `std::mem`
Nov 16 18:43:53.563 INFO [stderr]  --> src/program.rs:4:5
Nov 16 18:43:53.563 INFO [stderr]   |
Nov 16 18:43:53.563 INFO [stderr] 4 | use std::mem;
Nov 16 18:43:53.563 INFO [stderr]   |     ^^^^^^^^
Nov 16 18:43:53.563 INFO [stderr] 
Nov 16 18:43:53.563 INFO [stderr] warning: unused import: `std::error::Error`
Nov 16 18:43:53.563 INFO [stderr]  --> src/program.rs:9:5
Nov 16 18:43:53.563 INFO [stderr]   |
Nov 16 18:43:53.563 INFO [stderr] 9 | use std::error::Error;
Nov 16 18:43:53.563 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Nov 16 18:43:53.563 INFO [stderr] 
Nov 16 18:43:53.563 INFO [stderr] warning: unused imports: `GLboolean`, `GLchar`, `GLenum`, `GLint`, `GLuint`
Nov 16 18:43:53.563 INFO [stderr]   --> src/main.rs:11:26
Nov 16 18:43:53.563 INFO [stderr]    |
Nov 16 18:43:53.563 INFO [stderr] 11 | use gl::types::{GLfloat, GLenum, GLuint, GLint, GLchar, GLsizeiptr, GLboolean};
Nov 16 18:43:53.563 INFO [stderr]    |                          ^^^^^^  ^^^^^^  ^^^^^  ^^^^^^              ^^^^^^^^^
Nov 16 18:43:53.563 INFO [stderr] 
Nov 16 18:43:53.563 INFO [stderr] warning: doc comment not used by rustdoc
Nov 16 18:43:53.563 INFO [stderr]   --> src/main.rs:49:5
Nov 16 18:43:53.563 INFO [stderr]    |
Nov 16 18:43:53.563 INFO [stderr] 49 |     /// Setup the window
Nov 16 18:43:53.563 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:53.563 INFO [stderr]    |
Nov 16 18:43:53.563 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Nov 16 18:43:53.563 INFO [stderr] 
Nov 16 18:43:53.563 INFO [stderr] warning: doc comment not used by rustdoc
Nov 16 18:43:53.563 INFO [stderr]   --> src/main.rs:80:9
Nov 16 18:43:53.563 INFO [stderr]    |
Nov 16 18:43:53.563 INFO [stderr] 80 |         /// Create a VBO and VAO for rendering the scatter plot
Nov 16 18:43:53.563 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:53.563 INFO [stderr] 
Nov 16 18:43:53.563 INFO [stderr] warning: doc comment not used by rustdoc
Nov 16 18:43:53.563 INFO [stderr]   --> src/main.rs:98:9
Nov 16 18:43:53.563 INFO [stderr]    |
Nov 16 18:43:53.563 INFO [stderr] 98 |         /// Create a VBO and VAO for rendering the best-fit line
Nov 16 18:43:53.563 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:53.563 INFO [stderr] 
Nov 16 18:43:53.570 INFO [stderr] warning: doc comment not used by rustdoc
Nov 16 18:43:53.570 INFO [stderr]    --> src/main.rs:116:9
Nov 16 18:43:53.570 INFO [stderr]     |
Nov 16 18:43:53.570 INFO [stderr] 116 |         /// Bind the shader program that will be used to draw the
Nov 16 18:43:53.570 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:53.570 INFO [stderr] 
Nov 16 18:43:53.655 INFO [stderr] warning: unused variable: `window_size`
Nov 16 18:43:53.655 INFO [stderr]   --> src/main.rs:53:9
Nov 16 18:43:53.655 INFO [stderr]    |
Nov 16 18:43:53.655 INFO [stderr] 53 |     let window_size = window.get_inner_size();
Nov 16 18:43:53.655 INFO [stderr]    |         ^^^^^^^^^^^ help: consider using `_window_size` instead
Nov 16 18:43:53.655 INFO [stderr]    |
Nov 16 18:43:53.655 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 16 18:43:53.655 INFO [stderr] 
Nov 16 18:43:53.655 INFO [stderr] warning: unused variable: `shader_program`
Nov 16 18:43:53.655 INFO [stderr]   --> src/main.rs:67:13
Nov 16 18:43:53.655 INFO [stderr]    |
Nov 16 18:43:53.655 INFO [stderr] 67 |     let mut shader_program = 0;
Nov 16 18:43:53.655 INFO [stderr]    |             ^^^^^^^^^^^^^^ help: consider using `_shader_program` instead
Nov 16 18:43:53.656 INFO [stderr] 
Nov 16 18:43:53.667 INFO [stderr] warning: variable does not need to be mutable
Nov 16 18:43:53.667 INFO [stderr]   --> src/main.rs:67:9
Nov 16 18:43:53.667 INFO [stderr]    |
Nov 16 18:43:53.671 INFO [stderr] 67 |     let mut shader_program = 0;
Nov 16 18:43:53.671 INFO [stderr]    |         ----^^^^^^^^^^^^^^
Nov 16 18:43:53.671 INFO [stderr]    |         |
Nov 16 18:43:53.671 INFO [stderr]    |         help: remove this `mut`
Nov 16 18:43:53.671 INFO [stderr]    |
Nov 16 18:43:53.671 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 16 18:43:53.671 INFO [stderr] 
Nov 16 18:43:53.676 INFO [stderr] warning: struct is never constructed: `Line`
Nov 16 18:43:53.677 INFO [stderr]  --> src/linear_regression.rs:1:1
Nov 16 18:43:53.677 INFO [stderr]   |
Nov 16 18:43:53.677 INFO [stderr] 1 | pub struct Line {
Nov 16 18:43:53.677 INFO [stderr]   | ^^^^^^^^^^^^^^^
Nov 16 18:43:53.677 INFO [stderr]   |
Nov 16 18:43:53.677 INFO [stderr]   = note: #[warn(dead_code)] on by default
Nov 16 18:43:53.677 INFO [stderr] 
Nov 16 18:43:53.677 INFO [stderr] warning: struct is never constructed: `Point`
Nov 16 18:43:53.677 INFO [stderr]  --> src/linear_regression.rs:6:1
Nov 16 18:43:53.677 INFO [stderr]   |
Nov 16 18:43:53.677 INFO [stderr] 6 | pub struct Point {
Nov 16 18:43:53.683 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Nov 16 18:43:53.683 INFO [stderr] 
Nov 16 18:43:53.683 INFO [stderr] warning: method is never used: `learning_rate`
Nov 16 18:43:53.683 INFO [stderr]   --> src/linear_regression.rs:33:5
Nov 16 18:43:53.683 INFO [stderr]    |
Nov 16 18:43:53.683 INFO [stderr] 33 |     pub fn learning_rate(mut self, rate: f32) -> LinearRegression<'a> {
Nov 16 18:43:53.683 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:53.683 INFO [stderr] 
Nov 16 18:43:53.683 INFO [stderr] warning: method is never used: `unbind`
Nov 16 18:43:53.683 INFO [stderr]    --> src/program.rs:100:5
Nov 16 18:43:53.683 INFO [stderr]     |
Nov 16 18:43:53.683 INFO [stderr] 100 |     pub fn unbind(&self) {
Nov 16 18:43:53.683 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:53.683 INFO [stderr] 
Nov 16 18:43:53.697 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 18:43:53.697 INFO [stderr]   --> src/main.rs:70:9
Nov 16 18:43:53.697 INFO [stderr]    |
Nov 16 18:43:53.697 INFO [stderr] 70 |         window.make_current();
Nov 16 18:43:53.697 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:53.698 INFO [stderr]    |
Nov 16 18:43:53.698 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 16 18:43:53.698 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 18:43:53.698 INFO [stderr] 
Nov 16 18:43:53.698 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 16 18:43:53.703 INFO [stderr]    --> src/main.rs:154:9
Nov 16 18:43:53.703 INFO [stderr]     |
Nov 16 18:43:53.703 INFO [stderr] 154 |         window.swap_buffers();
Nov 16 18:43:53.703 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
Nov 16 18:43:53.703 INFO [stderr]     |
Nov 16 18:43:53.703 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 16 18:43:53.703 INFO [stderr] 
Nov 16 18:43:54.019 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.19s
Nov 16 18:43:54.029 INFO [stderr] su: No module specific data is present
Nov 16 18:43:54.917 INFO running `"docker" "inspect" "2e0f4d868b371a2218388a553f03534023fccc2a631a941fb3a9f51834be76e2"`
Nov 16 18:43:55.247 INFO running `"docker" "rm" "-f" "2e0f4d868b371a2218388a553f03534023fccc2a631a941fb3a9f51834be76e2"`
Nov 16 18:43:55.507 INFO [stdout] 2e0f4d868b371a2218388a553f03534023fccc2a631a941fb3a9f51834be76e2
Nov 16 18:43:55.512 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-2/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-55982/try#2e026d6e5d7621634147ad4c8074f1d964dbb1be:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +2e026d6e5d7621634147ad4c8074f1d964dbb1be-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 16 18:43:55.983 INFO [stdout] 7098e91ea23ea6f6b23d83e78d5b124f915a2f516bc6ac3527be553ff9f20431
Nov 16 18:43:55.989 INFO running `"docker" "start" "-a" "7098e91ea23ea6f6b23d83e78d5b124f915a2f516bc6ac3527be553ff9f20431"`
Nov 16 18:43:57.259 INFO [stderr] usermod: no changes
Nov 16 18:43:57.439 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
Nov 16 18:43:57.459 INFO [stderr]      Running /target/debug/deps/spectrum_learn_rs-a48c6decdbcea197
Nov 16 18:43:57.464 INFO [stdout] 
Nov 16 18:43:57.464 INFO [stdout] running 0 tests
Nov 16 18:43:57.464 INFO [stdout] 
Nov 16 18:43:57.464 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 16 18:43:57.464 INFO [stdout] 
Nov 16 18:43:57.471 INFO [stderr] su: No module specific data is present
Nov 16 18:43:58.253 INFO running `"docker" "inspect" "7098e91ea23ea6f6b23d83e78d5b124f915a2f516bc6ac3527be553ff9f20431"`
Nov 16 18:43:58.553 INFO running `"docker" "rm" "-f" "7098e91ea23ea6f6b23d83e78d5b124f915a2f516bc6ac3527be553ff9f20431"`
Nov 16 18:43:58.929 INFO [stdout] 7098e91ea23ea6f6b23d83e78d5b124f915a2f516bc6ac3527be553ff9f20431