[INFO] fetching crate wrecked 1.2.0...
[INFO] checking wrecked-1.2.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate wrecked 1.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate wrecked 1.2.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate wrecked 1.2.0
[INFO] finished tweaking crates.io crate wrecked 1.2.0
[INFO] tweaked toml for crates.io crate wrecked 1.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate wrecked 1.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1e85acf035ae2bd6a2c48a648747d61a99569a502b20294af5f8f711a28c53f1
[INFO] running `Command { std: "docker" "start" "-a" "1e85acf035ae2bd6a2c48a648747d61a99569a502b20294af5f8f711a28c53f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e85acf035ae2bd6a2c48a648747d61a99569a502b20294af5f8f711a28c53f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e85acf035ae2bd6a2c48a648747d61a99569a502b20294af5f8f711a28c53f1", kill_on_drop: false }`
[INFO] [stdout] 1e85acf035ae2bd6a2c48a648747d61a99569a502b20294af5f8f711a28c53f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 703a5ad3e4f1997d913c52af877af7c32df3fe33ddc2e644e94db6640b70dda8
[INFO] running `Command { std: "docker" "start" "-a" "703a5ad3e4f1997d913c52af877af7c32df3fe33ddc2e644e94db6640b70dda8", kill_on_drop: false }`
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]     Checking wrecked v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]    --> src/tests.rs:760:17
[INFO] [stdout]     |
[INFO] [stdout] 760 |         let s = (10 - (3 * i));
[INFO] [stdout]     |                 ^            ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 760 -         let s = (10 - (3 * i));
[INFO] [stdout] 760 +         let s = 10 - (3 * i);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rect`
[INFO] [stdout]     --> src/lib.rs:1151:18
[INFO] [stdout]      |
[INFO] [stdout] 1151 |             Some(rect) => {
[INFO] [stdout]      |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_rect`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `changed` is never read
[INFO] [stdout]     --> src/lib.rs:2640:21
[INFO] [stdout]      |
[INFO] [stdout] 2640 |             let mut changed = true;
[INFO] [stdout]      |                     ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout]      = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]    --> src/lib.rs:133:12
[INFO] [stdout]     |
[INFO] [stdout] 97  | impl EffectsHandler {
[INFO] [stdout]     | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 133 |     pub fn len(&mut self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]     --> src/lib.rs:2883:8
[INFO] [stdout]      |
[INFO] [stdout] 2496 | impl Rect {
[INFO] [stdout]      | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 2883 |     fn is_plain(&self) -> bool {
[INFO] [stdout]      |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 2887 |     fn is_bold(&self) -> bool {
[INFO] [stdout]      |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 2891 |     fn is_underlined(&self) -> bool {
[INFO] [stdout]      |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 2895 |     fn is_inverted(&self) -> bool {
[INFO] [stdout]      |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 2899 |     fn is_italicized(&self) -> bool {
[INFO] [stdout]      |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 2903 |     fn is_striken(&self) -> bool {
[INFO] [stdout]      |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 2907 |     fn is_blinking(&self) -> bool {
[INFO] [stdout]      |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 2911 |     fn has_child(&self, child_id: usize) -> bool {
[INFO] [stdout]      |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/lib.rs:1054:9
[INFO] [stdout]      |
[INFO] [stdout] 1054 |         self.flag_parent_refresh(rect_id);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1054 |         let _ = self.flag_parent_refresh(rect_id);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/tests.rs:801:14
[INFO] [stdout]     |
[INFO] [stdout] 801 |     for ((x, y), (c, _)) in rectmanager.get_cached_draw_map(rect_top) {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/tests.rs:810:14
[INFO] [stdout]     |
[INFO] [stdout] 810 |     for ((x, y), (c, _)) in rectmanager.get_cached_draw_map(rect_top) {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/tests.rs:837:14
[INFO] [stdout]     |
[INFO] [stdout] 837 |     for ((x, y), (c, _)) in rectmanager.get_cached_draw_map(rect_top) {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]    --> src/tests.rs:848:14
[INFO] [stdout]     |
[INFO] [stdout] 848 |     for ((x, y), (c, _)) in rectmanager.get_cached_draw_map(rect_top) {
[INFO] [stdout]     |              ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> examples/wave.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     for x in 0 .. width {
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/wave.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |         rectmanager.set_bg_color(rect_id, wrecked::Color::YELLOW);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 12 |         let _ = rectmanager.set_bg_color(rect_id, wrecked::Color::YELLOW);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/wave.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |         rectmanager.set_character(rect_id, 0, 0, ' ');
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let _ = rectmanager.set_character(rect_id, 0, 0, ' ');
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/wave.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 |     rectmanager.render();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 17 |     let _ = rectmanager.render();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/wave.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         rectmanager.set_position(rect_id, (x % width) as isize, y);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let _ = rectmanager.set_position(rect_id, (x % width) as isize, y);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/wave.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         rectmanager.draw(rect_id);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 24 |         let _ = rectmanager.draw(rect_id);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/wave.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         rectmanager.set_bg_color(*rect, wrecked::Color::BLUE);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let _ = rectmanager.set_bg_color(*rect, wrecked::Color::BLUE);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/wave.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         rectmanager.set_position(rect_id, (x % width) as isize, y);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 37 |         let _ = rectmanager.set_position(rect_id, (x % width) as isize, y);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/wave.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         rectmanager.render();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 38 |         let _ = rectmanager.render();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/wave.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 |     rectmanager.kill();
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 43 |     let _ = rectmanager.kill();
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rect`
[INFO] [stdout]     --> src/lib.rs:1151:18
[INFO] [stdout]      |
[INFO] [stdout] 1151 |             Some(rect) => {
[INFO] [stdout]      |                  ^^^^ help: if this is intentional, prefix it with an underscore: `_rect`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `changed` is never read
[INFO] [stdout]     --> src/lib.rs:2640:21
[INFO] [stdout]      |
[INFO] [stdout] 2640 |             let mut changed = true;
[INFO] [stdout]      |                     ^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: maybe it is overwritten before being read?
[INFO] [stdout]      = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `len` is never used
[INFO] [stdout]    --> src/lib.rs:133:12
[INFO] [stdout]     |
[INFO] [stdout] 97  | impl EffectsHandler {
[INFO] [stdout]     | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 133 |     pub fn len(&mut self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]     --> src/lib.rs:1054:9
[INFO] [stdout]      |
[INFO] [stdout] 1054 |         self.flag_parent_refresh(rect_id);
[INFO] [stdout]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]      |
[INFO] [stdout] 1054 |         let _ = self.flag_parent_refresh(rect_id);
[INFO] [stdout]      |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:706:5
[INFO] [stdout]     |
[INFO] [stdout] 706 |     rectmanager.set_bg_color(rect_id, Color::BLUE);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 706 |     let _ = rectmanager.set_bg_color(rect_id, Color::BLUE);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:736:9
[INFO] [stdout]     |
[INFO] [stdout] 736 |         rectmanager.new_rect(ROOT);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 736 |         let _ = rectmanager.new_rect(ROOT);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:739:5
[INFO] [stdout]     |
[INFO] [stdout] 739 |     rectmanager.delete_rect(4);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 739 |     let _ = rectmanager.delete_rect(4);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:741:5
[INFO] [stdout]     |
[INFO] [stdout] 741 |     rectmanager.delete_rect(1);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 741 |     let _ = rectmanager.delete_rect(1);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:744:5
[INFO] [stdout]     |
[INFO] [stdout] 744 |     rectmanager.delete_rect(2);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 744 |     let _ = rectmanager.delete_rect(2);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:747:5
[INFO] [stdout]     |
[INFO] [stdout] 747 |     rectmanager.delete_rect(3);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 747 |     let _ = rectmanager.delete_rect(3);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:761:9
[INFO] [stdout]     |
[INFO] [stdout] 761 |         rectmanager.resize(working_rect, s, s);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 761 |         let _ = rectmanager.resize(working_rect, s, s);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:762:9
[INFO] [stdout]     |
[INFO] [stdout] 762 |         rectmanager.set_position(working_rect, 2, 2);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 762 |         let _ = rectmanager.set_position(working_rect, 2, 2);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:767:5
[INFO] [stdout]     |
[INFO] [stdout] 767 |     rectmanager.render();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 767 |     let _ = rectmanager.render();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:770:5
[INFO] [stdout]     |
[INFO] [stdout] 770 |     rectmanager.set_character(*rects.last().unwrap(), 0, 0, 'X');
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 770 |     let _ = rectmanager.set_character(*rects.last().unwrap(), 0, 0, 'X');
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:793:5
[INFO] [stdout]     |
[INFO] [stdout] 793 |     rectmanager.resize(rect_top, 2, 1);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 793 |     let _ = rectmanager.resize(rect_top, 2, 1);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:794:5
[INFO] [stdout]     |
[INFO] [stdout] 794 |     rectmanager.resize(rect_mid, 2, 1);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 794 |     let _ = rectmanager.resize(rect_mid, 2, 1);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:795:5
[INFO] [stdout]     |
[INFO] [stdout] 795 |     rectmanager.resize(rect_bot, 1, 1);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 795 |     let _ = rectmanager.resize(rect_bot, 1, 1);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:796:5
[INFO] [stdout]     |
[INFO] [stdout] 796 |     rectmanager.set_position(rect_mid, 1, 0);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 796 |     let _ = rectmanager.set_position(rect_mid, 1, 0);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:797:5
[INFO] [stdout]     |
[INFO] [stdout] 797 |     rectmanager.set_position(rect_bot, 1, 0);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 797 |     let _ = rectmanager.set_position(rect_bot, 1, 0);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:798:5
[INFO] [stdout]     |
[INFO] [stdout] 798 |     rectmanager.set_character(rect_bot, 0, 0, 'X');
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 798 |     let _ = rectmanager.set_character(rect_bot, 0, 0, 'X');
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:799:5
[INFO] [stdout]     |
[INFO] [stdout] 799 |     rectmanager.render();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 799 |     let _ = rectmanager.render();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:807:5
[INFO] [stdout]     |
[INFO] [stdout] 807 |     rectmanager.resize(rect_top, 3, 1);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 807 |     let _ = rectmanager.resize(rect_top, 3, 1);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:808:5
[INFO] [stdout]     |
[INFO] [stdout] 808 |     rectmanager.render();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 808 |     let _ = rectmanager.render();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:825:5
[INFO] [stdout]     |
[INFO] [stdout] 825 |     rectmanager.resize(rect_top, 2, 1);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 825 |     let _ = rectmanager.resize(rect_top, 2, 1);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:827:5
[INFO] [stdout]     |
[INFO] [stdout] 827 |     rectmanager.resize(rect_mid, 2, 1);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 827 |     let _ = rectmanager.resize(rect_mid, 2, 1);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:828:5
[INFO] [stdout]     |
[INFO] [stdout] 828 |     rectmanager.set_position(rect_mid, -1, 0);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 828 |     let _ = rectmanager.set_position(rect_mid, -1, 0);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:830:5
[INFO] [stdout]     |
[INFO] [stdout] 830 |     rectmanager.resize(rect_bot, 1, 1);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 830 |     let _ = rectmanager.resize(rect_bot, 1, 1);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:831:5
[INFO] [stdout]     |
[INFO] [stdout] 831 |     rectmanager.set_position(rect_bot, 1, 0);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 831 |     let _ = rectmanager.set_position(rect_bot, 1, 0);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:832:5
[INFO] [stdout]     |
[INFO] [stdout] 832 |     rectmanager.set_character(rect_bot, 0, 0, 'Y');
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 832 |     let _ = rectmanager.set_character(rect_bot, 0, 0, 'Y');
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:834:5
[INFO] [stdout]     |
[INFO] [stdout] 834 |     rectmanager.render();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 834 |     let _ = rectmanager.render();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:845:5
[INFO] [stdout]     |
[INFO] [stdout] 845 |     rectmanager.set_position(rect_mid, 0, 0);
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 845 |     let _ = rectmanager.set_position(rect_mid, 0, 0);
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tests.rs:846:5
[INFO] [stdout]     |
[INFO] [stdout] 846 |     rectmanager.render();
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 846 |     let _ = rectmanager.render();
[INFO] [stdout]     |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 37 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `Command { std: "docker" "inspect" "703a5ad3e4f1997d913c52af877af7c32df3fe33ddc2e644e94db6640b70dda8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "703a5ad3e4f1997d913c52af877af7c32df3fe33ddc2e644e94db6640b70dda8", kill_on_drop: false }`
[INFO] [stdout] 703a5ad3e4f1997d913c52af877af7c32df3fe33ddc2e644e94db6640b70dda8