Dec 19 12:10:27.221 INFO checking mwalczyk/spectrum_learn_rs against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 12:10:27.221 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/mwalczyk/spectrum_learn_rs:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 12:10:27.568 INFO [stdout] 2bab9ba10cf8ff8d6b900ff4e0f6206a024a91135ca338aef6d157e987179720
Dec 19 12:10:27.574 INFO running `"docker" "start" "-a" "2bab9ba10cf8ff8d6b900ff4e0f6206a024a91135ca338aef6d157e987179720"`
Dec 19 12:10:29.072 INFO [stderr]    Compiling serde v0.9.12
Dec 19 12:10:29.072 INFO [stderr]     Checking lazy_static v0.2.5
Dec 19 12:10:29.089 INFO [stderr]    Compiling x11-dl v2.12.0
Dec 19 12:10:29.089 INFO [stderr]     Checking csv v0.15.0
Dec 19 12:10:29.089 INFO [stderr]    Compiling target_build_utils v0.3.0
Dec 19 12:10:29.089 INFO [stderr]     Checking fs2 v0.2.5
Dec 19 12:10:29.089 INFO [stderr]     Checking tempfile v2.1.5
Dec 19 12:10:29.402 INFO [stderr]     Checking shared_library v0.1.5
Dec 19 12:10:29.708 INFO [stderr]     Checking memmap v0.4.0
Dec 19 12:10:30.668 INFO [stderr]     Checking osmesa-sys v0.1.2
Dec 19 12:10:43.282 INFO [stderr]    Compiling serde_json v0.9.9
Dec 19 12:10:49.831 INFO [stderr]    Compiling libloading v0.3.4
Dec 19 12:10:51.792 INFO [stderr]     Checking dlib v0.3.1
Dec 19 12:10:52.020 INFO [stderr]     Checking wayland-sys v0.7.8
Dec 19 12:10:52.388 INFO [stderr]     Checking wayland-client v0.7.8
Dec 19 12:10:53.764 INFO [stderr]     Checking wayland-kbd v0.6.3
Dec 19 12:10:53.764 INFO [stderr]     Checking wayland-window v0.4.4
Dec 19 12:10:54.880 INFO [stderr]     Checking winit v0.5.11
Dec 19 12:10:56.100 INFO [stderr]     Checking glutin v0.7.4
Dec 19 12:10:57.388 INFO [stderr]     Checking spectrum_learn_rs v0.1.0 (/opt/crater/workdir)
Dec 19 12:10:57.765 INFO [stderr] warning: unused imports: `GLboolean`, `GLfloat`, `GLsizeiptr`
Dec 19 12:10:57.765 INFO [stderr]  --> src/program.rs:3:17
Dec 19 12:10:57.765 INFO [stderr]   |
Dec 19 12:10:57.765 INFO [stderr] 3 | use gl::types::{GLfloat, GLenum, GLuint, GLint, GLchar, GLsizeiptr, GLboolean};
Dec 19 12:10:57.765 INFO [stderr]   |                 ^^^^^^^                                 ^^^^^^^^^^  ^^^^^^^^^
Dec 19 12:10:57.765 INFO [stderr]   |
Dec 19 12:10:57.765 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 12:10:57.765 INFO [stderr] 
Dec 19 12:10:57.765 INFO [stderr] warning: unused import: `std::mem`
Dec 19 12:10:57.765 INFO [stderr]  --> src/program.rs:4:5
Dec 19 12:10:57.765 INFO [stderr]   |
Dec 19 12:10:57.765 INFO [stderr] 4 | use std::mem;
Dec 19 12:10:57.765 INFO [stderr]   |     ^^^^^^^^
Dec 19 12:10:57.765 INFO [stderr] 
Dec 19 12:10:57.765 INFO [stderr] warning: unused import: `std::error::Error`
Dec 19 12:10:57.765 INFO [stderr]  --> src/program.rs:9:5
Dec 19 12:10:57.765 INFO [stderr]   |
Dec 19 12:10:57.765 INFO [stderr] 9 | use std::error::Error;
Dec 19 12:10:57.765 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 19 12:10:57.765 INFO [stderr] 
Dec 19 12:10:57.765 INFO [stderr] warning: unused imports: `GLboolean`, `GLchar`, `GLenum`, `GLint`, `GLuint`
Dec 19 12:10:57.765 INFO [stderr]   --> src/main.rs:11:26
Dec 19 12:10:57.765 INFO [stderr]    |
Dec 19 12:10:57.765 INFO [stderr] 11 | use gl::types::{GLfloat, GLenum, GLuint, GLint, GLchar, GLsizeiptr, GLboolean};
Dec 19 12:10:57.765 INFO [stderr]    |                          ^^^^^^  ^^^^^^  ^^^^^  ^^^^^^              ^^^^^^^^^
Dec 19 12:10:57.765 INFO [stderr] 
Dec 19 12:10:57.767 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 12:10:57.767 INFO [stderr]   --> src/main.rs:49:5
Dec 19 12:10:57.767 INFO [stderr]    |
Dec 19 12:10:57.767 INFO [stderr] 49 |     /// Setup the window
Dec 19 12:10:57.767 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:57.767 INFO [stderr]    |
Dec 19 12:10:57.767 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 19 12:10:57.767 INFO [stderr] 
Dec 19 12:10:57.767 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 12:10:57.767 INFO [stderr]   --> src/main.rs:80:9
Dec 19 12:10:57.767 INFO [stderr]    |
Dec 19 12:10:57.767 INFO [stderr] 80 |         /// Create a VBO and VAO for rendering the scatter plot
Dec 19 12:10:57.767 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:57.767 INFO [stderr] 
Dec 19 12:10:57.767 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 12:10:57.767 INFO [stderr]   --> src/main.rs:98:9
Dec 19 12:10:57.767 INFO [stderr]    |
Dec 19 12:10:57.767 INFO [stderr] 98 |         /// Create a VBO and VAO for rendering the best-fit line
Dec 19 12:10:57.767 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:57.767 INFO [stderr] 
Dec 19 12:10:57.767 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 12:10:57.767 INFO [stderr]    --> src/main.rs:116:9
Dec 19 12:10:57.767 INFO [stderr]     |
Dec 19 12:10:57.767 INFO [stderr] 116 |         /// Bind the shader program that will be used to draw the
Dec 19 12:10:57.767 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:57.767 INFO [stderr] 
Dec 19 12:10:57.852 INFO [stderr] warning: unused variable: `window_size`
Dec 19 12:10:57.852 INFO [stderr]   --> src/main.rs:53:9
Dec 19 12:10:57.852 INFO [stderr]    |
Dec 19 12:10:57.852 INFO [stderr] 53 |     let window_size = window.get_inner_size();
Dec 19 12:10:57.852 INFO [stderr]    |         ^^^^^^^^^^^ help: consider using `_window_size` instead
Dec 19 12:10:57.853 INFO [stderr]    |
Dec 19 12:10:57.853 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 12:10:57.853 INFO [stderr] 
Dec 19 12:10:57.853 INFO [stderr] warning: unused variable: `shader_program`
Dec 19 12:10:57.853 INFO [stderr]   --> src/main.rs:67:13
Dec 19 12:10:57.853 INFO [stderr]    |
Dec 19 12:10:57.853 INFO [stderr] 67 |     let mut shader_program = 0;
Dec 19 12:10:57.853 INFO [stderr]    |             ^^^^^^^^^^^^^^ help: consider using `_shader_program` instead
Dec 19 12:10:57.853 INFO [stderr] 
Dec 19 12:10:57.870 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:10:57.870 INFO [stderr]   --> src/main.rs:67:9
Dec 19 12:10:57.870 INFO [stderr]    |
Dec 19 12:10:57.870 INFO [stderr] 67 |     let mut shader_program = 0;
Dec 19 12:10:57.870 INFO [stderr]    |         ----^^^^^^^^^^^^^^
Dec 19 12:10:57.870 INFO [stderr]    |         |
Dec 19 12:10:57.870 INFO [stderr]    |         help: remove this `mut`
Dec 19 12:10:57.876 INFO [stderr]    |
Dec 19 12:10:57.876 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 12:10:57.876 INFO [stderr] 
Dec 19 12:10:57.885 INFO [stderr] warning: struct is never constructed: `Line`
Dec 19 12:10:57.885 INFO [stderr]  --> src/linear_regression.rs:1:1
Dec 19 12:10:57.886 INFO [stderr]   |
Dec 19 12:10:57.886 INFO [stderr] 1 | pub struct Line {
Dec 19 12:10:57.886 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 19 12:10:57.886 INFO [stderr]   |
Dec 19 12:10:57.886 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 12:10:57.886 INFO [stderr] 
Dec 19 12:10:57.886 INFO [stderr] warning: struct is never constructed: `Point`
Dec 19 12:10:57.886 INFO [stderr]  --> src/linear_regression.rs:6:1
Dec 19 12:10:57.886 INFO [stderr]   |
Dec 19 12:10:57.886 INFO [stderr] 6 | pub struct Point {
Dec 19 12:10:57.886 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 19 12:10:57.886 INFO [stderr] 
Dec 19 12:10:57.886 INFO [stderr] warning: method is never used: `learning_rate`
Dec 19 12:10:57.886 INFO [stderr]   --> src/linear_regression.rs:33:5
Dec 19 12:10:57.886 INFO [stderr]    |
Dec 19 12:10:57.886 INFO [stderr] 33 |     pub fn learning_rate(mut self, rate: f32) -> LinearRegression<'a> {
Dec 19 12:10:57.886 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:57.886 INFO [stderr] 
Dec 19 12:10:57.886 INFO [stderr] warning: method is never used: `unbind`
Dec 19 12:10:57.886 INFO [stderr]    --> src/program.rs:100:5
Dec 19 12:10:57.886 INFO [stderr]     |
Dec 19 12:10:57.886 INFO [stderr] 100 |     pub fn unbind(&self) {
Dec 19 12:10:57.886 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:57.886 INFO [stderr] 
Dec 19 12:10:57.916 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 12:10:57.916 INFO [stderr]   --> src/main.rs:70:9
Dec 19 12:10:57.916 INFO [stderr]    |
Dec 19 12:10:57.916 INFO [stderr] 70 |         window.make_current();
Dec 19 12:10:57.916 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:57.916 INFO [stderr]    |
Dec 19 12:10:57.916 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 12:10:57.916 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 12:10:57.916 INFO [stderr] 
Dec 19 12:10:57.917 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 12:10:57.917 INFO [stderr]    --> src/main.rs:154:9
Dec 19 12:10:57.917 INFO [stderr]     |
Dec 19 12:10:57.917 INFO [stderr] 154 |         window.swap_buffers();
Dec 19 12:10:57.917 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:57.917 INFO [stderr]     |
Dec 19 12:10:57.917 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 12:10:57.917 INFO [stderr] 
Dec 19 12:10:58.042 INFO [stderr] warning: unused imports: `GLboolean`, `GLfloat`, `GLsizeiptr`
Dec 19 12:10:58.042 INFO [stderr]  --> src/program.rs:3:17
Dec 19 12:10:58.042 INFO [stderr]   |
Dec 19 12:10:58.042 INFO [stderr] 3 | use gl::types::{GLfloat, GLenum, GLuint, GLint, GLchar, GLsizeiptr, GLboolean};
Dec 19 12:10:58.042 INFO [stderr]   |                 ^^^^^^^                                 ^^^^^^^^^^  ^^^^^^^^^
Dec 19 12:10:58.042 INFO [stderr]   |
Dec 19 12:10:58.042 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 12:10:58.042 INFO [stderr] 
Dec 19 12:10:58.042 INFO [stderr] warning: unused import: `std::mem`
Dec 19 12:10:58.042 INFO [stderr]  --> src/program.rs:4:5
Dec 19 12:10:58.042 INFO [stderr]   |
Dec 19 12:10:58.042 INFO [stderr] 4 | use std::mem;
Dec 19 12:10:58.042 INFO [stderr]   |     ^^^^^^^^
Dec 19 12:10:58.042 INFO [stderr] 
Dec 19 12:10:58.042 INFO [stderr] warning: unused import: `std::error::Error`
Dec 19 12:10:58.042 INFO [stderr]  --> src/program.rs:9:5
Dec 19 12:10:58.042 INFO [stderr]   |
Dec 19 12:10:58.042 INFO [stderr] 9 | use std::error::Error;
Dec 19 12:10:58.042 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 19 12:10:58.042 INFO [stderr] 
Dec 19 12:10:58.042 INFO [stderr] warning: unused imports: `GLboolean`, `GLchar`, `GLenum`, `GLint`, `GLuint`
Dec 19 12:10:58.042 INFO [stderr]   --> src/main.rs:11:26
Dec 19 12:10:58.042 INFO [stderr]    |
Dec 19 12:10:58.042 INFO [stderr] 11 | use gl::types::{GLfloat, GLenum, GLuint, GLint, GLchar, GLsizeiptr, GLboolean};
Dec 19 12:10:58.042 INFO [stderr]    |                          ^^^^^^  ^^^^^^  ^^^^^  ^^^^^^              ^^^^^^^^^
Dec 19 12:10:58.042 INFO [stderr] 
Dec 19 12:10:58.042 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 12:10:58.042 INFO [stderr]   --> src/main.rs:49:5
Dec 19 12:10:58.042 INFO [stderr]    |
Dec 19 12:10:58.042 INFO [stderr] 49 |     /// Setup the window
Dec 19 12:10:58.042 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:58.042 INFO [stderr]    |
Dec 19 12:10:58.042 INFO [stderr]    = note: #[warn(unused_doc_comments)] on by default
Dec 19 12:10:58.042 INFO [stderr] 
Dec 19 12:10:58.042 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 12:10:58.042 INFO [stderr]   --> src/main.rs:80:9
Dec 19 12:10:58.043 INFO [stderr]    |
Dec 19 12:10:58.043 INFO [stderr] 80 |         /// Create a VBO and VAO for rendering the scatter plot
Dec 19 12:10:58.043 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:58.043 INFO [stderr] 
Dec 19 12:10:58.043 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 12:10:58.043 INFO [stderr]   --> src/main.rs:98:9
Dec 19 12:10:58.043 INFO [stderr]    |
Dec 19 12:10:58.043 INFO [stderr] 98 |         /// Create a VBO and VAO for rendering the best-fit line
Dec 19 12:10:58.043 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:58.043 INFO [stderr] 
Dec 19 12:10:58.043 INFO [stderr] warning: doc comment not used by rustdoc
Dec 19 12:10:58.043 INFO [stderr]    --> src/main.rs:116:9
Dec 19 12:10:58.043 INFO [stderr]     |
Dec 19 12:10:58.043 INFO [stderr] 116 |         /// Bind the shader program that will be used to draw the
Dec 19 12:10:58.043 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:58.043 INFO [stderr] 
Dec 19 12:10:58.145 INFO [stderr] warning: unused variable: `window_size`
Dec 19 12:10:58.145 INFO [stderr]   --> src/main.rs:53:9
Dec 19 12:10:58.145 INFO [stderr]    |
Dec 19 12:10:58.145 INFO [stderr] 53 |     let window_size = window.get_inner_size();
Dec 19 12:10:58.145 INFO [stderr]    |         ^^^^^^^^^^^ help: consider using `_window_size` instead
Dec 19 12:10:58.145 INFO [stderr]    |
Dec 19 12:10:58.145 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 12:10:58.145 INFO [stderr] 
Dec 19 12:10:58.145 INFO [stderr] warning: unused variable: `shader_program`
Dec 19 12:10:58.145 INFO [stderr]   --> src/main.rs:67:13
Dec 19 12:10:58.145 INFO [stderr]    |
Dec 19 12:10:58.145 INFO [stderr] 67 |     let mut shader_program = 0;
Dec 19 12:10:58.145 INFO [stderr]    |             ^^^^^^^^^^^^^^ help: consider using `_shader_program` instead
Dec 19 12:10:58.145 INFO [stderr] 
Dec 19 12:10:58.158 INFO [stderr] warning: variable does not need to be mutable
Dec 19 12:10:58.158 INFO [stderr]   --> src/main.rs:67:9
Dec 19 12:10:58.158 INFO [stderr]    |
Dec 19 12:10:58.158 INFO [stderr] 67 |     let mut shader_program = 0;
Dec 19 12:10:58.158 INFO [stderr]    |         ----^^^^^^^^^^^^^^
Dec 19 12:10:58.158 INFO [stderr]    |         |
Dec 19 12:10:58.158 INFO [stderr]    |         help: remove this `mut`
Dec 19 12:10:58.158 INFO [stderr]    |
Dec 19 12:10:58.158 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 12:10:58.158 INFO [stderr] 
Dec 19 12:10:58.167 INFO [stderr] warning: struct is never constructed: `Line`
Dec 19 12:10:58.167 INFO [stderr]  --> src/linear_regression.rs:1:1
Dec 19 12:10:58.167 INFO [stderr]   |
Dec 19 12:10:58.167 INFO [stderr] 1 | pub struct Line {
Dec 19 12:10:58.167 INFO [stderr]   | ^^^^^^^^^^^^^^^
Dec 19 12:10:58.167 INFO [stderr]   |
Dec 19 12:10:58.167 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 12:10:58.167 INFO [stderr] 
Dec 19 12:10:58.167 INFO [stderr] warning: struct is never constructed: `Point`
Dec 19 12:10:58.167 INFO [stderr]  --> src/linear_regression.rs:6:1
Dec 19 12:10:58.167 INFO [stderr]   |
Dec 19 12:10:58.167 INFO [stderr] 6 | pub struct Point {
Dec 19 12:10:58.167 INFO [stderr]   | ^^^^^^^^^^^^^^^^
Dec 19 12:10:58.167 INFO [stderr] 
Dec 19 12:10:58.167 INFO [stderr] warning: method is never used: `learning_rate`
Dec 19 12:10:58.167 INFO [stderr]   --> src/linear_regression.rs:33:5
Dec 19 12:10:58.167 INFO [stderr]    |
Dec 19 12:10:58.167 INFO [stderr] 33 |     pub fn learning_rate(mut self, rate: f32) -> LinearRegression<'a> {
Dec 19 12:10:58.167 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:58.167 INFO [stderr] 
Dec 19 12:10:58.167 INFO [stderr] warning: method is never used: `unbind`
Dec 19 12:10:58.167 INFO [stderr]    --> src/program.rs:100:5
Dec 19 12:10:58.167 INFO [stderr]     |
Dec 19 12:10:58.167 INFO [stderr] 100 |     pub fn unbind(&self) {
Dec 19 12:10:58.167 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:58.167 INFO [stderr] 
Dec 19 12:10:58.185 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 12:10:58.185 INFO [stderr]   --> src/main.rs:70:9
Dec 19 12:10:58.185 INFO [stderr]    |
Dec 19 12:10:58.185 INFO [stderr] 70 |         window.make_current();
Dec 19 12:10:58.185 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:58.185 INFO [stderr]    |
Dec 19 12:10:58.185 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 12:10:58.185 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 12:10:58.185 INFO [stderr] 
Dec 19 12:10:58.185 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 12:10:58.185 INFO [stderr]    --> src/main.rs:154:9
Dec 19 12:10:58.185 INFO [stderr]     |
Dec 19 12:10:58.185 INFO [stderr] 154 |         window.swap_buffers();
Dec 19 12:10:58.185 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 12:10:58.185 INFO [stderr]     |
Dec 19 12:10:58.185 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 12:10:58.185 INFO [stderr] 
Dec 19 12:10:58.203 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.30s
Dec 19 12:10:59.449 INFO running `"docker" "inspect" "2bab9ba10cf8ff8d6b900ff4e0f6206a024a91135ca338aef6d157e987179720"`
Dec 19 12:10:59.778 INFO running `"docker" "rm" "-f" "2bab9ba10cf8ff8d6b900ff4e0f6206a024a91135ca338aef6d157e987179720"`
Dec 19 12:11:00.049 INFO [stdout] 2bab9ba10cf8ff8d6b900ff4e0f6206a024a91135ca338aef6d157e987179720