[INFO] fetching crate learnwell 0.2.1...
[INFO] checking learnwell-0.2.1 against 1.95.0 for pr-155915
[INFO] extracting crate learnwell 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate learnwell 0.2.1
[INFO] finished tweaking crates.io crate learnwell 0.2.1
[INFO] tweaked toml for crates.io crate learnwell 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate learnwell 0.2.1 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate learnwell 0.2.1 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rustversion v1.0.11
[INFO] [stderr]   Downloaded memmap2 v0.5.8
[INFO] [stderr]   Downloaded proc-macro-crate v1.2.1
[INFO] [stderr]   Downloaded show-image-macros v0.12.3
[INFO] [stderr]   Downloaded foreign-types-macros v0.2.2
[INFO] [stderr]   Downloaded gpu-descriptor v0.2.3
[INFO] [stderr]   Downloaded gpu-descriptor-types v0.1.1
[INFO] [stderr]   Downloaded range-alloc v0.1.2
[INFO] [stderr]   Downloaded inplace_it v0.3.5
[INFO] [stderr]   Downloaded raw-window-handle v0.5.0
[INFO] [stderr]   Downloaded num_enum_derive v0.5.7
[INFO] [stderr]   Downloaded ndk-glue v0.7.0
[INFO] [stderr]   Downloaded num_enum v0.5.7
[INFO] [stderr]   Downloaded runnt v0.6.0
[INFO] [stderr]   Downloaded calloop v0.10.5
[INFO] [stderr]   Downloaded crossfont v0.5.1
[INFO] [stderr]   Downloaded wgpu-types v0.13.2
[INFO] [stderr]   Downloaded x11-dl v2.20.1
[INFO] [stderr]   Downloaded bytemuck v1.12.3
[INFO] [stderr]   Downloaded toml v0.5.10
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.16.0
[INFO] [stderr]   Downloaded png v0.17.7
[INFO] [stderr]   Downloaded nom v7.1.2
[INFO] [stderr]   Downloaded freetype-rs v0.26.0
[INFO] [stderr]   Downloaded wgpu v0.13.1
[INFO] [stderr]   Downloaded safe_arch v0.5.2
[INFO] [stderr]   Downloaded wgpu-core v0.13.2
[INFO] [stderr]   Downloaded petgraph v0.6.2
[INFO] [stderr]   Downloaded wgpu-hal v0.13.2
[INFO] [stderr]   Downloaded tiny-skia v0.7.0
[INFO] [stderr]   Downloaded show-image v0.13.1
[INFO] [stderr]   Downloaded tiny-skia-path v0.7.0
[INFO] [stderr]   Downloaded futures-executor v0.3.25
[INFO] [stderr]   Downloaded d3d12 v0.5.0
[INFO] [stderr]   Downloaded gpu-alloc v0.5.3
[INFO] [stderr]   Downloaded profiling v1.0.7
[INFO] [stderr]   Downloaded sctk-adwaita v0.4.3
[INFO] [stderr]   Downloaded winit v0.27.5
[INFO] [stderr]   Downloaded dwrote v0.11.0
[INFO] [stderr]   Downloaded slotmap v1.0.6
[INFO] [stderr]   Downloaded ash v0.37.2+1.3.238
[INFO] [stderr]   Downloaded naga v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eb814eba17e5bbaa68a5f4a1284be995f170a79044883482a5894f3dd1084333
[INFO] running `Command { std: "docker" "start" "-a" "eb814eba17e5bbaa68a5f4a1284be995f170a79044883482a5894f3dd1084333", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb814eba17e5bbaa68a5f4a1284be995f170a79044883482a5894f3dd1084333", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb814eba17e5bbaa68a5f4a1284be995f170a79044883482a5894f3dd1084333", kill_on_drop: false }`
[INFO] [stdout] eb814eba17e5bbaa68a5f4a1284be995f170a79044883482a5894f3dd1084333
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 764176549eac4eb13e8f976be104b2852c53735fb05f9e067d02b63a7199def6
[INFO] running `Command { std: "docker" "start" "-a" "764176549eac4eb13e8f976be104b2852c53735fb05f9e067d02b63a7199def6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]    Compiling cmake v0.1.49
[INFO] [stderr]    Compiling wayland-scanner v0.29.5
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking nom v7.1.2
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]     Checking bytemuck v1.12.3
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling ash v0.37.2+1.3.238
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking flate2 v1.0.25
[INFO] [stderr]     Checking nix v0.25.1
[INFO] [stderr]     Checking petgraph v0.6.2
[INFO] [stderr]    Compiling wayland-client v0.29.5
[INFO] [stderr]    Compiling wayland-protocols v0.29.5
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]     Checking spirv v0.2.0+1.5.4
[INFO] [stderr]     Checking wayland-commons v0.29.5
[INFO] [stderr]     Checking raw-window-handle v0.4.3
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.0
[INFO] [stderr]    Compiling crossfont v0.5.1
[INFO] [stderr]     Checking gpu-descriptor-types v0.1.1
[INFO] [stderr]     Checking gpu-alloc-types v0.2.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]     Checking unicode-xid v0.2.4
[INFO] [stderr]     Checking foreign-types-shared v0.3.1
[INFO] [stderr]     Checking futures-sink v0.3.25
[INFO] [stderr]    Compiling wgpu-core v0.13.2
[INFO] [stderr]     Checking gpu-descriptor v0.2.3
[INFO] [stderr]     Checking tiny-skia-path v0.7.0
[INFO] [stderr]     Checking gpu-alloc v0.5.3
[INFO] [stderr]     Checking png v0.17.7
[INFO] [stderr]     Checking servo-fontconfig v0.5.1
[INFO] [stderr]     Checking safe_arch v0.5.2
[INFO] [stderr]     Checking freetype-rs v0.26.0
[INFO] [stderr]     Checking memmap2 v0.5.8
[INFO] [stderr]    Compiling x11-dl v2.20.1
[INFO] [stderr]     Checking wgpu-types v0.13.2
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling rustversion v1.0.11
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking profiling v1.0.7
[INFO] [stderr]     Checking renderdoc-sys v0.7.1
[INFO] [stderr]     Checking glow v0.11.2
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking inplace_it v0.3.5
[INFO] [stderr]     Checking wayland-cursor v0.29.5
[INFO] [stderr]     Checking futures-io v0.3.25
[INFO] [stderr]     Checking tiny-skia v0.7.0
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking copyless v0.1.5
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]    Compiling show-image v0.13.1
[INFO] [stderr]     Checking mio v0.8.5
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking raw-window-handle v0.5.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking glam v0.21.3
[INFO] [stderr]     Checking ndarray v0.15.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling foreign-types-macros v0.2.2
[INFO] [stderr]     Checking foreign-types v0.5.0
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]    Compiling show-image-macros v0.12.3
[INFO] [stderr]     Checking calloop v0.10.5
[INFO] [stderr]     Checking naga v0.9.0
[INFO] [stderr]     Checking futures-executor v0.3.25
[INFO] [stderr]     Checking futures v0.3.25
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking runnt v0.6.0
[INFO] [stderr]     Checking wgpu-hal v0.13.2
[INFO] [stderr]     Checking wgpu v0.13.1
[INFO] [stderr]     Checking sctk-adwaita v0.4.3
[INFO] [stderr]     Checking winit v0.27.5
[INFO] [stderr]     Checking learnwell v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/agent/deepqlearning.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 17 |     strategy: Box<(dyn ExploreStrategy<A> + Send)>,
[INFO] [stdout]    |                   ^                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 17 -     strategy: Box<(dyn ExploreStrategy<A> + Send)>,
[INFO] [stdout] 17 +     strategy: Box<dyn ExploreStrategy<A> + Send >,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/agent/qlearning.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 |     strategy: Box<(dyn ExploreStrategy<A> + Send)>,
[INFO] [stdout]    |                   ^                             ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -     strategy: Box<(dyn ExploreStrategy<A> + Send)>,
[INFO] [stdout] 13 +     strategy: Box<dyn ExploreStrategy<A> + Send >,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/agent/deepqlearning.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 17 |     strategy: Box<(dyn ExploreStrategy<A> + Send)>,
[INFO] [stdout]    |                   ^                             ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 17 -     strategy: Box<(dyn ExploreStrategy<A> + Send)>,
[INFO] [stdout] 17 +     strategy: Box<dyn ExploreStrategy<A> + Send >,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/agent/qlearning.rs:13:19
[INFO] [stdout]    |
[INFO] [stdout] 13 |     strategy: Box<(dyn ExploreStrategy<A> + Send)>,
[INFO] [stdout]    |                   ^                             ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 13 -     strategy: Box<(dyn ExploreStrategy<A> + Send)>,
[INFO] [stdout] 13 +     strategy: Box<dyn ExploreStrategy<A> + Send >,
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/environment.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn get_image(&mut self) -> ImageView;
[INFO] [stdout]    |                  ^^^^^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn get_image(&mut self) -> ImageView<'_>;
[INFO] [stdout]    |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/environment.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn get_image(&mut self) -> ImageView;
[INFO] [stdout]    |                  ^^^^^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn get_image(&mut self) -> ImageView<'_>;
[INFO] [stdout]    |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> examples/environments/mouse.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Point {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MouseState` is never constructed
[INFO] [stdout]   --> examples/environments/mouse.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct MouseState {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MouseAction` is never used
[INFO] [stdout]   --> examples/environments/mouse.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub enum MouseAction {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MouseEnvironment` is never constructed
[INFO] [stdout]   --> examples/environments/mouse.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct MouseEnvironment {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `save_image` is never used
[INFO] [stdout]   --> examples/environments/mouse.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl MouseEnvironment {
[INFO] [stdout]    | --------------------- method in this implementation
[INFO] [stdout] 56 |     fn save_image(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaxiState` is never constructed
[INFO] [stdout]   --> examples/environments/taxi.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct TaxiState {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> examples/environments/taxi.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub struct Point {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TaxiAction` is never used
[INFO] [stdout]   --> examples/environments/taxi.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub enum TaxiAction {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaxiEnvironment` is never constructed
[INFO] [stdout]   --> examples/environments/taxi.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub struct TaxiEnvironment {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_finished` and `save_image` are never used
[INFO] [stdout]    --> examples/environments/taxi.rs:203:8
[INFO] [stdout]     |
[INFO] [stdout] 202 | impl TaxiEnvironment {
[INFO] [stdout]     | -------------------- methods in this implementation
[INFO] [stdout] 203 |     fn is_finished(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 216 |     fn save_image(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/environments/hike.rs:266:18
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn get_image(&mut self) -> ImageView {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn get_image(&mut self) -> ImageView<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/environments/mouse.rs:175:18
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn get_image(&mut self) -> show_image::ImageView {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn get_image(&mut self) -> show_image::ImageView<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/environments/taxi.rs:195:18
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn get_image(&mut self) -> show_image::ImageView {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn get_image(&mut self) -> show_image::ImageView<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX` is never used
[INFO] [stdout]   --> examples/environments/hike.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const MAX: usize = 650;
[INFO] [stdout]    |       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Hike` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Hike {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GridVal` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct GridVal {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct Point {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MyAction` is never used
[INFO] [stdout]   --> examples/environments/hike.rs:48:10
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub enum MyAction {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyState` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct MyState {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `valid_actions`, and `update_pixels` are never used
[INFO] [stdout]    --> examples/environments/hike.rs:76:12
[INFO] [stdout]     |
[INFO] [stdout]  75 | impl Hike {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout]  76 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn valid_actions(&self,  grid: &Vec<Vec<GridVal>>) -> Vec<MyAction> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     fn update_pixels(&mut self){
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_grid` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:182:4
[INFO] [stdout]     |
[INFO] [stdout] 182 | fn load_grid() -> Vec<Vec<GridVal>>{
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dis` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:274:4
[INFO] [stdout]     |
[INFO] [stdout] 274 | fn dis(a: &Point, b: &Point) -> f64 {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `on_finish` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:278:4
[INFO] [stdout]     |
[INFO] [stdout] 278 | fn on_finish(env: &mut Hike,  step: usize) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `GRID_RAW` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:306:8
[INFO] [stdout]     |
[INFO] [stdout] 306 | static GRID_RAW: &str = 
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> examples/environments/mouse.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Point {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MouseState` is never constructed
[INFO] [stdout]   --> examples/environments/mouse.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct MouseState {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MouseAction` is never used
[INFO] [stdout]   --> examples/environments/mouse.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub enum MouseAction {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MouseEnvironment` is never constructed
[INFO] [stdout]   --> examples/environments/mouse.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct MouseEnvironment {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `save_image` is never used
[INFO] [stdout]   --> examples/environments/mouse.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl MouseEnvironment {
[INFO] [stdout]    | --------------------- method in this implementation
[INFO] [stdout] 56 |     fn save_image(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/environments/hike.rs:266:18
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn get_image(&mut self) -> ImageView {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn get_image(&mut self) -> ImageView<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/environments/mouse.rs:175:18
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn get_image(&mut self) -> show_image::ImageView {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn get_image(&mut self) -> show_image::ImageView<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/environments/taxi.rs:195:18
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn get_image(&mut self) -> show_image::ImageView {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn get_image(&mut self) -> show_image::ImageView<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX` is never used
[INFO] [stdout]   --> examples/environments/hike.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const MAX: usize = 650;
[INFO] [stdout]    |       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Hike` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Hike {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GridVal` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct GridVal {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct Point {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MyAction` is never used
[INFO] [stdout]   --> examples/environments/hike.rs:48:10
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub enum MyAction {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyState` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct MyState {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `valid_actions`, and `update_pixels` are never used
[INFO] [stdout]    --> examples/environments/hike.rs:76:12
[INFO] [stdout]     |
[INFO] [stdout]  75 | impl Hike {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout]  76 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn valid_actions(&self,  grid: &Vec<Vec<GridVal>>) -> Vec<MyAction> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     fn update_pixels(&mut self){
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_grid` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:182:4
[INFO] [stdout]     |
[INFO] [stdout] 182 | fn load_grid() -> Vec<Vec<GridVal>>{
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dis` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:274:4
[INFO] [stdout]     |
[INFO] [stdout] 274 | fn dis(a: &Point, b: &Point) -> f64 {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `on_finish` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:278:4
[INFO] [stdout]     |
[INFO] [stdout] 278 | fn on_finish(env: &mut Hike,  step: usize) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `GRID_RAW` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:306:8
[INFO] [stdout]     |
[INFO] [stdout] 306 | static GRID_RAW: &str = 
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> examples/environments/mouse.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct Point {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MouseState` is never constructed
[INFO] [stdout]   --> examples/environments/mouse.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub struct MouseState {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MouseAction` is never used
[INFO] [stdout]   --> examples/environments/mouse.rs:40:10
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub enum MouseAction {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MouseEnvironment` is never constructed
[INFO] [stdout]   --> examples/environments/mouse.rs:48:12
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct MouseEnvironment {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `save_image` is never used
[INFO] [stdout]   --> examples/environments/mouse.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 55 | impl MouseEnvironment {
[INFO] [stdout]    | --------------------- method in this implementation
[INFO] [stdout] 56 |     fn save_image(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/environments/hike.rs:266:18
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn get_image(&mut self) -> ImageView {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn get_image(&mut self) -> ImageView<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/environments/mouse.rs:175:18
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn get_image(&mut self) -> show_image::ImageView {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn get_image(&mut self) -> show_image::ImageView<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/environments/taxi.rs:195:18
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn get_image(&mut self) -> show_image::ImageView {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn get_image(&mut self) -> show_image::ImageView<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX` is never used
[INFO] [stdout]   --> examples/environments/hike.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const MAX: usize = 650;
[INFO] [stdout]    |       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Hike` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Hike {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GridVal` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct GridVal {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct Point {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MyAction` is never used
[INFO] [stdout]   --> examples/environments/hike.rs:48:10
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub enum MyAction {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyState` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct MyState {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `valid_actions`, and `update_pixels` are never used
[INFO] [stdout]    --> examples/environments/hike.rs:76:12
[INFO] [stdout]     |
[INFO] [stdout]  75 | impl Hike {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout]  76 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn valid_actions(&self,  grid: &Vec<Vec<GridVal>>) -> Vec<MyAction> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     fn update_pixels(&mut self){
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_grid` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:182:4
[INFO] [stdout]     |
[INFO] [stdout] 182 | fn load_grid() -> Vec<Vec<GridVal>>{
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dis` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:274:4
[INFO] [stdout]     |
[INFO] [stdout] 274 | fn dis(a: &Point, b: &Point) -> f64 {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `on_finish` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:278:4
[INFO] [stdout]     |
[INFO] [stdout] 278 | fn on_finish(env: &mut Hike,  step: usize) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `GRID_RAW` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:306:8
[INFO] [stdout]     |
[INFO] [stdout] 306 | static GRID_RAW: &str = 
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaxiState` is never constructed
[INFO] [stdout]   --> examples/environments/taxi.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct TaxiState {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> examples/environments/taxi.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub struct Point {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TaxiAction` is never used
[INFO] [stdout]   --> examples/environments/taxi.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub enum TaxiAction {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaxiEnvironment` is never constructed
[INFO] [stdout]   --> examples/environments/taxi.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub struct TaxiEnvironment {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_finished` and `save_image` are never used
[INFO] [stdout]    --> examples/environments/taxi.rs:203:8
[INFO] [stdout]     |
[INFO] [stdout] 202 | impl TaxiEnvironment {
[INFO] [stdout]     | -------------------- methods in this implementation
[INFO] [stdout] 203 |     fn is_finished(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 216 |     fn save_image(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/environments/hike.rs:266:18
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn get_image(&mut self) -> ImageView {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn get_image(&mut self) -> ImageView<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/environments/mouse.rs:175:18
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn get_image(&mut self) -> show_image::ImageView {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn get_image(&mut self) -> show_image::ImageView<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/environments/taxi.rs:195:18
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn get_image(&mut self) -> show_image::ImageView {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn get_image(&mut self) -> show_image::ImageView<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX` is never used
[INFO] [stdout]   --> examples/environments/hike.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const MAX: usize = 650;
[INFO] [stdout]    |       ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Hike` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Hike {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `GridVal` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:36:8
[INFO] [stdout]    |
[INFO] [stdout] 36 | struct GridVal {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 | struct Point {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `MyAction` is never used
[INFO] [stdout]   --> examples/environments/hike.rs:48:10
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub enum MyAction {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyState` is never constructed
[INFO] [stdout]   --> examples/environments/hike.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 | pub struct MyState {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `valid_actions`, and `update_pixels` are never used
[INFO] [stdout]    --> examples/environments/hike.rs:76:12
[INFO] [stdout]     |
[INFO] [stdout]  75 | impl Hike {
[INFO] [stdout]     | --------- associated items in this implementation
[INFO] [stdout]  76 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn valid_actions(&self,  grid: &Vec<Vec<GridVal>>) -> Vec<MyAction> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 143 |     fn update_pixels(&mut self){
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_grid` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:182:4
[INFO] [stdout]     |
[INFO] [stdout] 182 | fn load_grid() -> Vec<Vec<GridVal>>{
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `dis` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:274:4
[INFO] [stdout]     |
[INFO] [stdout] 274 | fn dis(a: &Point, b: &Point) -> f64 {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `on_finish` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:278:4
[INFO] [stdout]     |
[INFO] [stdout] 278 | fn on_finish(env: &mut Hike,  step: usize) {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static `GRID_RAW` is never used
[INFO] [stdout]    --> examples/environments/hike.rs:306:8
[INFO] [stdout]     |
[INFO] [stdout] 306 | static GRID_RAW: &str = 
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaxiState` is never constructed
[INFO] [stdout]   --> examples/environments/taxi.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct TaxiState {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Point` is never constructed
[INFO] [stdout]   --> examples/environments/taxi.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub struct Point {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TaxiAction` is never used
[INFO] [stdout]   --> examples/environments/taxi.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub enum TaxiAction {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaxiEnvironment` is never constructed
[INFO] [stdout]   --> examples/environments/taxi.rs:93:12
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub struct TaxiEnvironment {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_finished` and `save_image` are never used
[INFO] [stdout]    --> examples/environments/taxi.rs:203:8
[INFO] [stdout]     |
[INFO] [stdout] 202 | impl TaxiEnvironment {
[INFO] [stdout]     | -------------------- methods in this implementation
[INFO] [stdout] 203 |     fn is_finished(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 216 |     fn save_image(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/environments/hike.rs:266:18
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn get_image(&mut self) -> ImageView {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 266 |     fn get_image(&mut self) -> ImageView<'_> {
[INFO] [stdout]     |                                         ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/environments/mouse.rs:175:18
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn get_image(&mut self) -> show_image::ImageView {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 175 |     fn get_image(&mut self) -> show_image::ImageView<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> examples/environments/taxi.rs:195:18
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn get_image(&mut self) -> show_image::ImageView {
[INFO] [stdout]     |                  ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                  |
[INFO] [stdout]     |                  the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 195 |     fn get_image(&mut self) -> show_image::ImageView<'_> {
[INFO] [stdout]     |                                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 24s
[INFO] running `Command { std: "docker" "inspect" "764176549eac4eb13e8f976be104b2852c53735fb05f9e067d02b63a7199def6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "764176549eac4eb13e8f976be104b2852c53735fb05f9e067d02b63a7199def6", kill_on_drop: false }`
[INFO] [stdout] 764176549eac4eb13e8f976be104b2852c53735fb05f9e067d02b63a7199def6
