Dec 13 09:36:31.299 INFO testing mwalczyk/spectrum_learn_rs against master#bd47d6825bf4090517549d33cfef10d3300b4a75 for pr-56550
Dec 13 09:36:31.299 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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"`
Dec 13 09:36:32.037 INFO [stdout] 871d10ffe73792308f8e0d88c383e26febe42574be43514ec3fb2b050078e0d7
Dec 13 09:36:32.037 INFO running `"docker" "start" "-a" "871d10ffe73792308f8e0d88c383e26febe42574be43514ec3fb2b050078e0d7"`
Dec 13 09:36:33.100 INFO [stderr] usermod: no changes
Dec 13 09:36:33.299 INFO [stderr]    Compiling lazy_static v0.2.5
Dec 13 09:36:33.304 INFO [stderr]    Compiling csv v0.15.0
Dec 13 09:36:33.304 INFO [stderr]    Compiling gl v0.6.1
Dec 13 09:36:33.304 INFO [stderr]    Compiling target_build_utils v0.3.0
Dec 13 09:36:33.951 INFO [stderr]    Compiling x11-dl v2.12.0
Dec 13 09:36:33.951 INFO [stderr]    Compiling shared_library v0.1.5
Dec 13 09:36:36.104 INFO [stderr]    Compiling osmesa-sys v0.1.2
Dec 13 09:36:39.271 INFO [stderr]    Compiling libloading v0.3.4
Dec 13 09:36:44.515 INFO [stderr]    Compiling dlib v0.3.1
Dec 13 09:36:45.335 INFO [stderr]    Compiling wayland-sys v0.7.8
Dec 13 09:36:48.504 INFO [stderr]    Compiling wayland-client v0.7.8
Dec 13 09:36:51.527 INFO [stderr]    Compiling wayland-kbd v0.6.3
Dec 13 09:36:51.527 INFO [stderr]    Compiling wayland-window v0.4.4
Dec 13 09:36:54.659 INFO [stderr]    Compiling winit v0.5.11
Dec 13 09:36:59.225 INFO [stderr]    Compiling glutin v0.7.4
Dec 13 09:37:02.019 INFO [stderr]    Compiling spectrum_learn_rs v0.1.0 (/source)
Dec 13 09:37:02.640 INFO [stderr] warning: unused imports: `GLboolean`, `GLfloat`, `GLsizeiptr`
Dec 13 09:37:02.640 INFO [stderr]  --> src/program.rs:3:17
Dec 13 09:37:02.640 INFO [stderr]   |
Dec 13 09:37:02.640 INFO [stderr] 3 | use gl::types::{GLfloat, GLenum, GLuint, GLint, GLchar, GLsizeiptr, GLboolean};
Dec 13 09:37:02.640 INFO [stderr]   |                 ^^^^^^^                                 ^^^^^^^^^^  ^^^^^^^^^
Dec 13 09:37:02.640 INFO [stderr]   |
Dec 13 09:37:02.640 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 09:37:02.640 INFO [stderr] 
Dec 13 09:37:02.640 INFO [stderr] warning: unused import: `std::mem`
Dec 13 09:37:02.640 INFO [stderr]  --> src/program.rs:4:5
Dec 13 09:37:02.640 INFO [stderr]   |
Dec 13 09:37:02.640 INFO [stderr] 4 | use std::mem;
Dec 13 09:37:02.640 INFO [stderr]   |     ^^^^^^^^
Dec 13 09:37:02.640 INFO [stderr] 
Dec 13 09:37:02.640 INFO [stderr] warning: unused import: `std::error::Error`
Dec 13 09:37:02.640 INFO [stderr]  --> src/program.rs:9:5
Dec 13 09:37:02.640 INFO [stderr]   |
Dec 13 09:37:02.640 INFO [stderr] 9 | use std::error::Error;
Dec 13 09:37:02.640 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 13 09:37:02.640 INFO [stderr] 
Dec 13 09:37:02.640 INFO [stderr] warning: unused imports: `GLboolean`, `GLchar`, `GLenum`, `GLint`, `GLuint`
Dec 13 09:37:02.640 INFO [stderr]   --> src/main.rs:11:26
Dec 13 09:37:02.640 INFO [stderr]    |
Dec 13 09:37:02.640 INFO [stderr] 11 | use gl::types::{GLfloat, GLenum, GLuint, GLint, GLchar, GLsizeiptr, GLboolean};
Dec 13 09:37:02.640 INFO [stderr]    |                          ^^^^^^  ^^^^^^  ^^^^^  ^^^^^^              ^^^^^^^^^
Dec 13 09:37:02.640 INFO [stderr] 
Dec 13 09:37:02.640 INFO [stderr] warning: doc comment not used by rustdoc
Dec 13 09:37:02.640 INFO [stderr]   --> src/main.rs:49:5
Dec 13 09:37:02.640 INFO [stderr]    |
Dec 13 09:37:02.640 INFO [stderr] 49 |     /// Setup the window
Dec 13 09:37:02.640 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:02.640 INFO [stderr]    |
Dec 13 09:37:02.640 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 13 09:37:02.640 INFO [stderr] 
Dec 13 09:37:02.640 INFO [stderr] warning: doc comment not used by rustdoc
Dec 13 09:37:02.640 INFO [stderr]   --> src/main.rs:80:9
Dec 13 09:37:02.640 INFO [stderr]    |
Dec 13 09:37:02.641 INFO [stderr] 80 |         /// Create a VBO and VAO for rendering the scatter plot
Dec 13 09:37:02.641 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:02.641 INFO [stderr] 
Dec 13 09:37:02.641 INFO [stderr] warning: doc comment not used by rustdoc
Dec 13 09:37:02.641 INFO [stderr]   --> src/main.rs:98:9
Dec 13 09:37:02.641 INFO [stderr]    |
Dec 13 09:37:02.641 INFO [stderr] 98 |         /// Create a VBO and VAO for rendering the best-fit line
Dec 13 09:37:02.641 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:02.641 INFO [stderr] 
Dec 13 09:37:02.641 INFO [stderr] warning: doc comment not used by rustdoc
Dec 13 09:37:02.641 INFO [stderr]    --> src/main.rs:116:9
Dec 13 09:37:02.641 INFO [stderr]     |
Dec 13 09:37:02.641 INFO [stderr] 116 |         /// Bind the shader program that will be used to draw the
Dec 13 09:37:02.641 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:02.641 INFO [stderr] 
Dec 13 09:37:02.715 INFO [stderr] warning: unused variable: `window_size`
Dec 13 09:37:02.715 INFO [stderr]   --> src/main.rs:53:9
Dec 13 09:37:02.715 INFO [stderr]    |
Dec 13 09:37:02.715 INFO [stderr] 53 |     let window_size = window.get_inner_size();
Dec 13 09:37:02.715 INFO [stderr]    |         ^^^^^^^^^^^ help: consider using `_window_size` instead
Dec 13 09:37:02.715 INFO [stderr]    |
Dec 13 09:37:02.715 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 09:37:02.715 INFO [stderr] 
Dec 13 09:37:02.715 INFO [stderr] warning: unused variable: `shader_program`
Dec 13 09:37:02.715 INFO [stderr]   --> src/main.rs:67:13
Dec 13 09:37:02.715 INFO [stderr]    |
Dec 13 09:37:02.715 INFO [stderr] 67 |     let mut shader_program = 0;
Dec 13 09:37:02.715 INFO [stderr]    |             ^^^^^^^^^^^^^^ help: consider using `_shader_program` instead
Dec 13 09:37:02.715 INFO [stderr] 
Dec 13 09:37:02.727 INFO [stderr] warning: variable does not need to be mutable
Dec 13 09:37:02.727 INFO [stderr]   --> src/main.rs:67:9
Dec 13 09:37:02.727 INFO [stderr]    |
Dec 13 09:37:02.727 INFO [stderr] 67 |     let mut shader_program = 0;
Dec 13 09:37:02.727 INFO [stderr]    |         ----^^^^^^^^^^^^^^
Dec 13 09:37:02.727 INFO [stderr]    |         |
Dec 13 09:37:02.727 INFO [stderr]    |         help: remove this `mut`
Dec 13 09:37:02.727 INFO [stderr]    |
Dec 13 09:37:02.727 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 13 09:37:02.727 INFO [stderr] 
Dec 13 09:37:02.739 INFO [stderr] warning: struct is never constructed: `Line`
Dec 13 09:37:02.739 INFO [stderr]  --> src/linear_regression.rs:1:1
Dec 13 09:37:02.739 INFO [stderr]   |
Dec 13 09:37:02.739 INFO [stderr] 1 | pub struct Line {
Dec 13 09:37:02.739 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 13 09:37:02.739 INFO [stderr]   |
Dec 13 09:37:02.739 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 13 09:37:02.739 INFO [stderr] 
Dec 13 09:37:02.739 INFO [stderr] warning: struct is never constructed: `Point`
Dec 13 09:37:02.739 INFO [stderr]  --> src/linear_regression.rs:6:1
Dec 13 09:37:02.739 INFO [stderr]   |
Dec 13 09:37:02.739 INFO [stderr] 6 | pub struct Point {
Dec 13 09:37:02.739 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 13 09:37:02.739 INFO [stderr] 
Dec 13 09:37:02.739 INFO [stderr] warning: method is never used: `learning_rate`
Dec 13 09:37:02.739 INFO [stderr]   --> src/linear_regression.rs:33:5
Dec 13 09:37:02.739 INFO [stderr]    |
Dec 13 09:37:02.739 INFO [stderr] 33 |     pub fn learning_rate(mut self, rate: f32) -> LinearRegression<'a> {
Dec 13 09:37:02.739 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:02.739 INFO [stderr] 
Dec 13 09:37:02.739 INFO [stderr] warning: method is never used: `unbind`
Dec 13 09:37:02.739 INFO [stderr]    --> src/program.rs:100:5
Dec 13 09:37:02.739 INFO [stderr]     |
Dec 13 09:37:02.739 INFO [stderr] 100 |     pub fn unbind(&self) {
Dec 13 09:37:02.739 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:02.739 INFO [stderr] 
Dec 13 09:37:02.759 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 09:37:02.759 INFO [stderr]   --> src/main.rs:70:9
Dec 13 09:37:02.759 INFO [stderr]    |
Dec 13 09:37:02.759 INFO [stderr] 70 |         window.make_current();
Dec 13 09:37:02.759 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:02.759 INFO [stderr]    |
Dec 13 09:37:02.759 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 13 09:37:02.759 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 09:37:02.759 INFO [stderr] 
Dec 13 09:37:02.759 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 09:37:02.759 INFO [stderr]    --> src/main.rs:154:9
Dec 13 09:37:02.759 INFO [stderr]     |
Dec 13 09:37:02.759 INFO [stderr] 154 |         window.swap_buffers();
Dec 13 09:37:02.759 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:02.759 INFO [stderr]     |
Dec 13 09:37:02.759 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 09:37:02.759 INFO [stderr] 
Dec 13 09:37:06.683 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.55s
Dec 13 09:37:06.703 INFO [stderr] su: No module specific data is present
Dec 13 09:37:07.423 INFO running `"docker" "inspect" "871d10ffe73792308f8e0d88c383e26febe42574be43514ec3fb2b050078e0d7"`
Dec 13 09:37:07.701 INFO running `"docker" "rm" "-f" "871d10ffe73792308f8e0d88c383e26febe42574be43514ec3fb2b050078e0d7"`
Dec 13 09:37:08.087 INFO [stdout] 871d10ffe73792308f8e0d88c383e26febe42574be43514ec3fb2b050078e0d7
Dec 13 09:37:08.093 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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"`
Dec 13 09:37:08.663 INFO [stdout] 7783adaa33f371576d6d6fc42d037f45436a4325f72aff4f61550c59e86e1bf7
Dec 13 09:37:08.666 INFO running `"docker" "start" "-a" "7783adaa33f371576d6d6fc42d037f45436a4325f72aff4f61550c59e86e1bf7"`
Dec 13 09:37:09.937 INFO [stderr] usermod: no changes
Dec 13 09:37:10.167 INFO [stderr]    Compiling spectrum_learn_rs v0.1.0 (/source)
Dec 13 09:37:10.975 INFO [stderr] warning: unused imports: `GLboolean`, `GLfloat`, `GLsizeiptr`
Dec 13 09:37:10.975 INFO [stderr]  --> src/program.rs:3:17
Dec 13 09:37:10.975 INFO [stderr]   |
Dec 13 09:37:10.975 INFO [stderr] 3 | use gl::types::{GLfloat, GLenum, GLuint, GLint, GLchar, GLsizeiptr, GLboolean};
Dec 13 09:37:10.975 INFO [stderr]   |                 ^^^^^^^                                 ^^^^^^^^^^  ^^^^^^^^^
Dec 13 09:37:10.975 INFO [stderr]   |
Dec 13 09:37:10.975 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 13 09:37:10.975 INFO [stderr] 
Dec 13 09:37:10.975 INFO [stderr] warning: unused import: `std::mem`
Dec 13 09:37:10.975 INFO [stderr]  --> src/program.rs:4:5
Dec 13 09:37:10.975 INFO [stderr]   |
Dec 13 09:37:10.975 INFO [stderr] 4 | use std::mem;
Dec 13 09:37:10.975 INFO [stderr]   |     ^^^^^^^^
Dec 13 09:37:10.975 INFO [stderr] 
Dec 13 09:37:10.975 INFO [stderr] warning: unused import: `std::error::Error`
Dec 13 09:37:10.975 INFO [stderr]  --> src/program.rs:9:5
Dec 13 09:37:10.975 INFO [stderr]   |
Dec 13 09:37:10.975 INFO [stderr] 9 | use std::error::Error;
Dec 13 09:37:10.975 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 13 09:37:10.975 INFO [stderr] 
Dec 13 09:37:10.975 INFO [stderr] warning: unused imports: `GLboolean`, `GLchar`, `GLenum`, `GLint`, `GLuint`
Dec 13 09:37:10.975 INFO [stderr]   --> src/main.rs:11:26
Dec 13 09:37:10.975 INFO [stderr]    |
Dec 13 09:37:10.975 INFO [stderr] 11 | use gl::types::{GLfloat, GLenum, GLuint, GLint, GLchar, GLsizeiptr, GLboolean};
Dec 13 09:37:10.975 INFO [stderr]    |                          ^^^^^^  ^^^^^^  ^^^^^  ^^^^^^              ^^^^^^^^^
Dec 13 09:37:10.975 INFO [stderr] 
Dec 13 09:37:10.975 INFO [stderr] warning: doc comment not used by rustdoc
Dec 13 09:37:10.975 INFO [stderr]   --> src/main.rs:49:5
Dec 13 09:37:10.975 INFO [stderr]    |
Dec 13 09:37:10.975 INFO [stderr] 49 |     /// Setup the window
Dec 13 09:37:10.975 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:10.975 INFO [stderr]    |
Dec 13 09:37:10.975 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 13 09:37:10.975 INFO [stderr] 
Dec 13 09:37:10.975 INFO [stderr] warning: doc comment not used by rustdoc
Dec 13 09:37:10.975 INFO [stderr]   --> src/main.rs:80:9
Dec 13 09:37:10.975 INFO [stderr]    |
Dec 13 09:37:10.975 INFO [stderr] 80 |         /// Create a VBO and VAO for rendering the scatter plot
Dec 13 09:37:10.975 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:10.975 INFO [stderr] 
Dec 13 09:37:10.975 INFO [stderr] warning: doc comment not used by rustdoc
Dec 13 09:37:10.975 INFO [stderr]   --> src/main.rs:98:9
Dec 13 09:37:10.975 INFO [stderr]    |
Dec 13 09:37:10.975 INFO [stderr] 98 |         /// Create a VBO and VAO for rendering the best-fit line
Dec 13 09:37:10.975 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:10.975 INFO [stderr] 
Dec 13 09:37:10.983 INFO [stderr] warning: doc comment not used by rustdoc
Dec 13 09:37:10.987 INFO [stderr]    --> src/main.rs:116:9
Dec 13 09:37:10.987 INFO [stderr]     |
Dec 13 09:37:10.987 INFO [stderr] 116 |         /// Bind the shader program that will be used to draw the
Dec 13 09:37:10.987 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:10.987 INFO [stderr] 
Dec 13 09:37:11.053 INFO [stderr] warning: unused variable: `window_size`
Dec 13 09:37:11.054 INFO [stderr]   --> src/main.rs:53:9
Dec 13 09:37:11.054 INFO [stderr]    |
Dec 13 09:37:11.054 INFO [stderr] 53 |     let window_size = window.get_inner_size();
Dec 13 09:37:11.054 INFO [stderr]    |         ^^^^^^^^^^^ help: consider using `_window_size` instead
Dec 13 09:37:11.054 INFO [stderr]    |
Dec 13 09:37:11.059 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 13 09:37:11.059 INFO [stderr] 
Dec 13 09:37:11.059 INFO [stderr] warning: unused variable: `shader_program`
Dec 13 09:37:11.059 INFO [stderr]   --> src/main.rs:67:13
Dec 13 09:37:11.059 INFO [stderr]    |
Dec 13 09:37:11.059 INFO [stderr] 67 |     let mut shader_program = 0;
Dec 13 09:37:11.059 INFO [stderr]    |             ^^^^^^^^^^^^^^ help: consider using `_shader_program` instead
Dec 13 09:37:11.059 INFO [stderr] 
Dec 13 09:37:11.075 INFO [stderr] warning: variable does not need to be mutable
Dec 13 09:37:11.075 INFO [stderr]   --> src/main.rs:67:9
Dec 13 09:37:11.075 INFO [stderr]    |
Dec 13 09:37:11.075 INFO [stderr] 67 |     let mut shader_program = 0;
Dec 13 09:37:11.075 INFO [stderr]    |         ----^^^^^^^^^^^^^^
Dec 13 09:37:11.075 INFO [stderr]    |         |
Dec 13 09:37:11.075 INFO [stderr]    |         help: remove this `mut`
Dec 13 09:37:11.075 INFO [stderr]    |
Dec 13 09:37:11.075 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 13 09:37:11.075 INFO [stderr] 
Dec 13 09:37:11.087 INFO [stderr] warning: struct is never constructed: `Line`
Dec 13 09:37:11.087 INFO [stderr]  --> src/linear_regression.rs:1:1
Dec 13 09:37:11.087 INFO [stderr]   |
Dec 13 09:37:11.087 INFO [stderr] 1 | pub struct Line {
Dec 13 09:37:11.087 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 13 09:37:11.087 INFO [stderr]   |
Dec 13 09:37:11.087 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 13 09:37:11.087 INFO [stderr] 
Dec 13 09:37:11.087 INFO [stderr] warning: struct is never constructed: `Point`
Dec 13 09:37:11.087 INFO [stderr]  --> src/linear_regression.rs:6:1
Dec 13 09:37:11.087 INFO [stderr]   |
Dec 13 09:37:11.087 INFO [stderr] 6 | pub struct Point {
Dec 13 09:37:11.087 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 13 09:37:11.087 INFO [stderr] 
Dec 13 09:37:11.087 INFO [stderr] warning: method is never used: `learning_rate`
Dec 13 09:37:11.087 INFO [stderr]   --> src/linear_regression.rs:33:5
Dec 13 09:37:11.087 INFO [stderr]    |
Dec 13 09:37:11.087 INFO [stderr] 33 |     pub fn learning_rate(mut self, rate: f32) -> LinearRegression<'a> {
Dec 13 09:37:11.087 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:11.087 INFO [stderr] 
Dec 13 09:37:11.087 INFO [stderr] warning: method is never used: `unbind`
Dec 13 09:37:11.087 INFO [stderr]    --> src/program.rs:100:5
Dec 13 09:37:11.087 INFO [stderr]     |
Dec 13 09:37:11.087 INFO [stderr] 100 |     pub fn unbind(&self) {
Dec 13 09:37:11.087 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:11.087 INFO [stderr] 
Dec 13 09:37:11.099 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 09:37:11.099 INFO [stderr]   --> src/main.rs:70:9
Dec 13 09:37:11.099 INFO [stderr]    |
Dec 13 09:37:11.099 INFO [stderr] 70 |         window.make_current();
Dec 13 09:37:11.099 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:11.099 INFO [stderr]    |
Dec 13 09:37:11.099 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 13 09:37:11.099 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 09:37:11.099 INFO [stderr] 
Dec 13 09:37:11.099 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 13 09:37:11.099 INFO [stderr]    --> src/main.rs:154:9
Dec 13 09:37:11.099 INFO [stderr]     |
Dec 13 09:37:11.099 INFO [stderr] 154 |         window.swap_buffers();
Dec 13 09:37:11.099 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 13 09:37:11.107 INFO [stderr]     |
Dec 13 09:37:11.107 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 13 09:37:11.107 INFO [stderr] 
Dec 13 09:37:11.499 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.53s
Dec 13 09:37:11.519 INFO [stderr] su: No module specific data is present
Dec 13 09:37:12.044 INFO running `"docker" "inspect" "7783adaa33f371576d6d6fc42d037f45436a4325f72aff4f61550c59e86e1bf7"`
Dec 13 09:37:12.252 INFO running `"docker" "rm" "-f" "7783adaa33f371576d6d6fc42d037f45436a4325f72aff4f61550c59e86e1bf7"`
Dec 13 09:37:12.527 INFO [stdout] 7783adaa33f371576d6d6fc42d037f45436a4325f72aff4f61550c59e86e1bf7
Dec 13 09:37:12.532 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56550/worker-0/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56550/master#bd47d6825bf4090517549d33cfef10d3300b4a75:/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 +bd47d6825bf4090517549d33cfef10d3300b4a75-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"`
Dec 13 09:37:13.063 INFO [stdout] d6716a87df0eae8dab54dd04a2d06794997c07e493c849f2b4e6dfc3817916f4
Dec 13 09:37:13.066 INFO running `"docker" "start" "-a" "d6716a87df0eae8dab54dd04a2d06794997c07e493c849f2b4e6dfc3817916f4"`
Dec 13 09:37:14.803 INFO [stderr] usermod: no changes
Dec 13 09:37:14.924 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.10s
Dec 13 09:37:14.947 INFO [stderr]      Running /target/debug/deps/spectrum_learn_rs-ca724ef684695ae6
Dec 13 09:37:14.956 INFO [stdout] 
Dec 13 09:37:14.956 INFO [stdout] running 0 tests
Dec 13 09:37:14.956 INFO [stdout] 
Dec 13 09:37:14.956 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Dec 13 09:37:14.956 INFO [stdout] 
Dec 13 09:37:14.959 INFO [stderr] su: No module specific data is present
Dec 13 09:37:16.130 INFO running `"docker" "inspect" "d6716a87df0eae8dab54dd04a2d06794997c07e493c849f2b4e6dfc3817916f4"`
Dec 13 09:37:16.363 INFO running `"docker" "rm" "-f" "d6716a87df0eae8dab54dd04a2d06794997c07e493c849f2b4e6dfc3817916f4"`
Dec 13 09:37:16.579 INFO [stdout] d6716a87df0eae8dab54dd04a2d06794997c07e493c849f2b4e6dfc3817916f4