[INFO] updating cached repository https://github.com/michey/rexperiment
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] edc9af6f82c92a6a139f60e8eb7eecfbda0ef72f
[INFO] checking michey/rexperiment against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmichey%2Frexperiment" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/michey/rexperiment on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/michey/rexperiment
[INFO] finished tweaking git repo https://github.com/michey/rexperiment
[INFO] tweaked toml for git repo https://github.com/michey/rexperiment written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/michey/rexperiment already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] a6e9e4c2a3389742139d9f0db2a86cd7446233eaf4dfce1fad6b778fd93ec0df
[INFO] running `"docker" "start" "-a" "a6e9e4c2a3389742139d9f0db2a86cd7446233eaf4dfce1fad6b778fd93ec0df"`
[INFO] [stderr]    Compiling miniz-sys v0.1.10
[INFO] [stderr]     Checking serde_json v1.0.4
[INFO] [stderr]     Checking humantime v1.0.0
[INFO] [stderr]     Checking serde_yaml v0.7.1
[INFO] [stderr]     Checking serde-value v0.5.1
[INFO] [stderr]     Checking chrono v0.3.0
[INFO] [stderr]     Checking sdl2 v0.30.0
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking log4rs v0.7.0
[INFO] [stderr]     Checking rexperiment v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/gui/window.rs:25:47
[INFO] [stderr]    |
[INFO] [stderr] 25 |   pub fn get_drawables(&mut self) -> Vec<&mut elements::Drawable> {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn elements::Drawable`
[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/gui/window.rs:26:25
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut v: Vec<&mut elements::Drawable> = Vec::new();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn elements::Drawable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/gui/ui.rs:33:40
[INFO] [stderr]    |
[INFO] [stderr] 33 |   fn get_stated(&mut self) -> Vec<&mut Stated> {
[INFO] [stderr]    |                                        ^^^^^^ help: use `dyn`: `dyn Stated`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/gui/ui.rs:34:25
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut v: Vec<&mut Stated> = Vec::new();
[INFO] [stderr]    |                         ^^^^^^ help: use `dyn`: `dyn Stated`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::super::super::renderer`
[INFO] [stderr]  --> src/gui/elements/cursor.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use self::super::super::renderer;
[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/ui.rs:5:40
[INFO] [stderr]   |
[INFO] [stderr] 5 |   fn get_stated(&mut self) -> Vec<&mut Stated>;
[INFO] [stderr]   |                                        ^^^^^^ help: use `dyn`: `dyn Stated`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::super::ui::UI`
[INFO] [stderr]   --> src/state/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use self::super::ui::UI;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::max`
[INFO] [stderr]  --> src/state/cursor_state.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::cmp::max;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/gui/window.rs:25:47
[INFO] [stderr]    |
[INFO] [stderr] 25 |   pub fn get_drawables(&mut self) -> Vec<&mut elements::Drawable> {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn elements::Drawable`
[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/gui/window.rs:26:25
[INFO] [stderr]    |
[INFO] [stderr] 26 |     let mut v: Vec<&mut elements::Drawable> = Vec::new();
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn elements::Drawable`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/gui/ui.rs:33:40
[INFO] [stderr]    |
[INFO] [stderr] 33 |   fn get_stated(&mut self) -> Vec<&mut Stated> {
[INFO] [stderr]    |                                        ^^^^^^ help: use `dyn`: `dyn Stated`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/gui/ui.rs:34:25
[INFO] [stderr]    |
[INFO] [stderr] 34 |     let mut v: Vec<&mut Stated> = Vec::new();
[INFO] [stderr]    |                         ^^^^^^ help: use `dyn`: `dyn Stated`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::super::super::renderer`
[INFO] [stderr]  --> src/gui/elements/cursor.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use self::super::super::renderer;
[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/ui.rs:5:40
[INFO] [stderr]   |
[INFO] [stderr] 5 |   fn get_stated(&mut self) -> Vec<&mut Stated>;
[INFO] [stderr]   |                                        ^^^^^^ help: use `dyn`: `dyn Stated`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `self::super::ui::UI`
[INFO] [stderr]   --> src/state/mod.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use self::super::ui::UI;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::max`
[INFO] [stderr]  --> src/state/cursor_state.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::cmp::max;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]  --> src/gui/font.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | / lazy_static! {
[INFO] [stderr] 6 | |     static ref DEFAULT_FONT: String = String::from("assets/Inconsolata-Regular.ttf");
[INFO] [stderr] 7 | |     static ref DEFAULT_FONT_SIZE: u16 = 14;
[INFO] [stderr] 8 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]  --> src/gui/font.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | / lazy_static! {
[INFO] [stderr] 6 | |     static ref DEFAULT_FONT: String = String::from("assets/Inconsolata-Regular.ttf");
[INFO] [stderr] 7 | |     static ref DEFAULT_FONT_SIZE: u16 = 14;
[INFO] [stderr] 8 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]  --> src/gui/font.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | / lazy_static! {
[INFO] [stderr] 6 | |     static ref DEFAULT_FONT: String = String::from("assets/Inconsolata-Regular.ttf");
[INFO] [stderr] 7 | |     static ref DEFAULT_FONT_SIZE: u16 = 14;
[INFO] [stderr] 8 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]  --> src/gui/font.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | / lazy_static! {
[INFO] [stderr] 6 | |     static ref DEFAULT_FONT: String = String::from("assets/Inconsolata-Regular.ttf");
[INFO] [stderr] 7 | |     static ref DEFAULT_FONT_SIZE: u16 = 14;
[INFO] [stderr] 8 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]  --> src/gui/font.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | / lazy_static! {
[INFO] [stderr] 6 | |     static ref DEFAULT_FONT: String = String::from("assets/Inconsolata-Regular.ttf");
[INFO] [stderr] 7 | |     static ref DEFAULT_FONT_SIZE: u16 = 14;
[INFO] [stderr] 8 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]  --> src/gui/font.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | / lazy_static! {
[INFO] [stderr] 6 | |     static ref DEFAULT_FONT: String = String::from("assets/Inconsolata-Regular.ttf");
[INFO] [stderr] 7 | |     static ref DEFAULT_FONT_SIZE: u16 = 14;
[INFO] [stderr] 8 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]  --> src/gui/font.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | / lazy_static! {
[INFO] [stderr] 6 | |     static ref DEFAULT_FONT: String = String::from("assets/Inconsolata-Regular.ttf");
[INFO] [stderr] 7 | |     static ref DEFAULT_FONT_SIZE: u16 = 14;
[INFO] [stderr] 8 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::ONCE_INIT': the `new` function is now preferred
[INFO] [stderr]  --> src/gui/font.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | / lazy_static! {
[INFO] [stderr] 6 | |     static ref DEFAULT_FONT: String = String::from("assets/Inconsolata-Regular.ttf");
[INFO] [stderr] 7 | |     static ref DEFAULT_FONT_SIZE: u16 = 14;
[INFO] [stderr] 8 | | }
[INFO] [stderr]   | |_^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/state/mod.rs:94:9
[INFO] [stderr]    |
[INFO] [stderr] 94 |         _ => { info!("msg: {:?}", msg) }
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/state/mod.rs:94:9
[INFO] [stderr]    |
[INFO] [stderr] 94 |         _ => { info!("msg: {:?}", msg) }
[INFO] [stderr]    |         ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/gui/ui.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |     let mut font_params = font::load_default_font(&ttf_context);
[INFO] [stderr]     |         ----^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/state/mod.rs:82:11
[INFO] [stderr]    |
[INFO] [stderr] 82 |       let mut msg = state_mutation_o.recv().unwrap();
[INFO] [stderr]    |           ----^^^
[INFO] [stderr]    |           |
[INFO] [stderr]    |           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/state/mod.rs:72:7
[INFO] [stderr]    |
[INFO] [stderr] 72 |   let mut state = State::new();
[INFO] [stderr]    |       ----^^^^^
[INFO] [stderr]    |       |
[INFO] [stderr]    |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/gui/ui.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |     let mut font_params = font::load_default_font(&ttf_context);
[INFO] [stderr]     |         ----^^^^^^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/state/text_state.rs:50:7
[INFO] [stderr]    |
[INFO] [stderr] 50 |   let mut f = File::open(path).expect("fnf");
[INFO] [stderr]    |       ----^
[INFO] [stderr]    |       |
[INFO] [stderr]    |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/state/text_state.rs:51:7
[INFO] [stderr]    |
[INFO] [stderr] 51 |   let mut buf_reader = BufReader::new(f);
[INFO] [stderr]    |       ----^^^^^^^^^^
[INFO] [stderr]    |       |
[INFO] [stderr]    |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `video_subsystem`
[INFO] [stderr]   --> src/gui/ui.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   video_subsystem: sdl2::VideoSubsystem,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_available_lines_amount`
[INFO] [stderr]   --> src/gui/elements/field.rs:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn get_available_lines_amount(canvas: &mut WindowCanvas, font_h: u32) -> u16 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/state/mod.rs:82:11
[INFO] [stderr]    |
[INFO] [stderr] 82 |       let mut msg = state_mutation_o.recv().unwrap();
[INFO] [stderr]    |           ----^^^
[INFO] [stderr]    |           |
[INFO] [stderr]    |           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/state/mod.rs:72:7
[INFO] [stderr]    |
[INFO] [stderr] 72 |   let mut state = State::new();
[INFO] [stderr]    |       ----^^^^^
[INFO] [stderr]    |       |
[INFO] [stderr]    |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/gui/ui.rs:125:19
[INFO] [stderr]     |
[INFO] [stderr] 125 |                   sender.send(MutateState::u());
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/gui/ui.rs:128:19
[INFO] [stderr]     |
[INFO] [stderr] 128 |                   sender.send(MutateState::d());
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/gui/ui.rs:131:19
[INFO] [stderr]     |
[INFO] [stderr] 131 |                   sender.send(MutateState::l());
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/gui/ui.rs:134:19
[INFO] [stderr]     |
[INFO] [stderr] 134 |                   sender.send(MutateState::r());
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/gui/ui.rs:138:19
[INFO] [stderr]     |
[INFO] [stderr] 138 |                   sender.send(MutateState::LoadFile(String::from("./src/gui/ui.rs")));
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/gui/ui.rs:146:15
[INFO] [stderr]     |
[INFO] [stderr] 146 |               sender.send(MutateState::Stop);
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/gui/elements/cursor.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     canvas.draw_line(p1, p2);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/state/mod.rs:96:7
[INFO] [stderr]    |
[INFO] [stderr] 96 |       state_computation_i.send(StateMutated::Ok);
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/state/text_state.rs:50:7
[INFO] [stderr]    |
[INFO] [stderr] 50 |   let mut f = File::open(path).expect("fnf");
[INFO] [stderr]    |       ----^
[INFO] [stderr]    |       |
[INFO] [stderr]    |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/state/text_state.rs:51:7
[INFO] [stderr]    |
[INFO] [stderr] 51 |   let mut buf_reader = BufReader::new(f);
[INFO] [stderr]    |       ----^^^^^^^^^^
[INFO] [stderr]    |       |
[INFO] [stderr]    |       help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `video_subsystem`
[INFO] [stderr]   --> src/gui/ui.rs:26:3
[INFO] [stderr]    |
[INFO] [stderr] 26 |   video_subsystem: sdl2::VideoSubsystem,
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_available_lines_amount`
[INFO] [stderr]   --> src/gui/elements/field.rs:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn get_available_lines_amount(canvas: &mut WindowCanvas, font_h: u32) -> u16 {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/gui/ui.rs:125:19
[INFO] [stderr]     |
[INFO] [stderr] 125 |                   sender.send(MutateState::u());
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/gui/ui.rs:128:19
[INFO] [stderr]     |
[INFO] [stderr] 128 |                   sender.send(MutateState::d());
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/gui/ui.rs:131:19
[INFO] [stderr]     |
[INFO] [stderr] 131 |                   sender.send(MutateState::l());
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/gui/ui.rs:134:19
[INFO] [stderr]     |
[INFO] [stderr] 134 |                   sender.send(MutateState::r());
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/gui/ui.rs:138:19
[INFO] [stderr]     |
[INFO] [stderr] 138 |                   sender.send(MutateState::LoadFile(String::from("./src/gui/ui.rs")));
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/gui/ui.rs:146:15
[INFO] [stderr]     |
[INFO] [stderr] 146 |               sender.send(MutateState::Stop);
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/gui/elements/cursor.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     canvas.draw_line(p1, p2);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/state/mod.rs:96:7
[INFO] [stderr]    |
[INFO] [stderr] 96 |       state_computation_i.send(StateMutated::Ok);
[INFO] [stderr]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.31s
[INFO] running `"docker" "inspect" "a6e9e4c2a3389742139d9f0db2a86cd7446233eaf4dfce1fad6b778fd93ec0df"`
[INFO] running `"docker" "rm" "-f" "a6e9e4c2a3389742139d9f0db2a86cd7446233eaf4dfce1fad6b778fd93ec0df"`
[INFO] [stdout] a6e9e4c2a3389742139d9f0db2a86cd7446233eaf4dfce1fad6b778fd93ec0df