[INFO] cloning repository https://github.com/smsweet66/cellular_automata
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/smsweet66/cellular_automata" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmsweet66%2Fcellular_automata", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmsweet66%2Fcellular_automata'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 572bc8067cd53e60d127d3c6f03cce1f5af3a9f1
[INFO] checking smsweet66/cellular_automata against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmsweet66%2Fcellular_automata" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/smsweet66/cellular_automata
[INFO] finished tweaking git repo https://github.com/smsweet66/cellular_automata
[INFO] tweaked toml for git repo https://github.com/smsweet66/cellular_automata written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/smsweet66/cellular_automata on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/smsweet66/cellular_automata 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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `cellular_automata` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /workspace/builds/worker-5-tc1/source/target/.../cellular_automata
[INFO] [stderr]    |                                                  ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `cellular-automata`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:9:8
[INFO] [stderr]    |
[INFO] [stderr]  9 - name = "cellular_automata"
[INFO] [stderr]  9 + name = "cellular-automata"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `cellular-automata`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:10:19
[INFO] [stderr]    |
[INFO] [stderr] 10 ~ version = "0.1.0"
[INFO] [stderr] 11 + [[bin]]
[INFO] [stderr] 12 + name = "cellular-automata"
[INFO] [stderr] 13 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `cellular_automata` (manifest) generated 1 warning
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nalgebra-glm v0.15.0
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.15
[INFO] [stderr]   Downloaded wide v0.7.2
[INFO] [stderr]   Downloaded simba v0.6.0
[INFO] [stderr]   Downloaded cty v0.2.2
[INFO] [stderr]   Downloaded num_enum v0.5.4
[INFO] [stderr]   Downloaded wayland-sys v0.29.1
[INFO] [stderr]   Downloaded proc-macro-crate v1.1.0
[INFO] [stderr]   Downloaded glutin_emscripten_sys v0.1.1
[INFO] [stderr]   Downloaded raw-window-handle v0.4.2
[INFO] [stderr]   Downloaded num_enum_derive v0.5.4
[INFO] [stderr]   Downloaded boolvec v0.2.6
[INFO] [stderr]   Downloaded wayland-scanner v0.29.1
[INFO] [stderr]   Downloaded wayland-commons v0.29.1
[INFO] [stderr]   Downloaded ndk-glue v0.5.0
[INFO] [stderr]   Downloaded glutin_wgl_sys v0.1.5
[INFO] [stderr]   Downloaded glutin_glx_sys v0.1.7
[INFO] [stderr]   Downloaded glutin_gles2_sys v0.1.5
[INFO] [stderr]   Downloaded libloading v0.7.2
[INFO] [stderr]   Downloaded memmap2 v0.3.1
[INFO] [stderr]   Downloaded approx v0.5.0
[INFO] [stderr]   Downloaded num-rational v0.4.0
[INFO] [stderr]   Downloaded osmesa-sys v0.1.2
[INFO] [stderr]   Downloaded takeable-option v0.5.0
[INFO] [stderr]   Downloaded wayland-egl v0.29.1
[INFO] [stderr]   Downloaded glutin_egl_sys v0.1.5
[INFO] [stderr]   Downloaded xcursor v0.3.4
[INFO] [stderr]   Downloaded once_cell v1.8.0
[INFO] [stderr]   Downloaded wayland-cursor v0.29.1
[INFO] [stderr]   Downloaded quote v1.0.10
[INFO] [stderr]   Downloaded bytemuck v1.7.2
[INFO] [stderr]   Downloaded num-complex v0.4.0
[INFO] [stderr]   Downloaded typenum v1.14.0
[INFO] [stderr]   Downloaded smallvec v1.7.0
[INFO] [stderr]   Downloaded matrixmultiply v0.3.2
[INFO] [stderr]   Downloaded ndk v0.5.0
[INFO] [stderr]   Downloaded x11-dl v2.19.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.33
[INFO] [stderr]   Downloaded glutin v0.28.0
[INFO] [stderr]   Downloaded js-sys v0.3.55
[INFO] [stderr]   Downloaded wayland-client v0.29.1
[INFO] [stderr]   Downloaded calloop v0.9.1
[INFO] [stderr]   Downloaded serde v1.0.131
[INFO] [stderr]   Downloaded bumpalo v3.8.0
[INFO] [stderr]   Downloaded backtrace v0.3.63
[INFO] [stderr]   Downloaded safe_arch v0.6.0
[INFO] [stderr]   Downloaded wayland-protocols v0.29.1
[INFO] [stderr]   Downloaded smithay-client-toolkit v0.15.2
[INFO] [stderr]   Downloaded syn v1.0.82
[INFO] [stderr]   Downloaded nix v0.22.0
[INFO] [stderr]   Downloaded nalgebra v0.29.0
[INFO] [stderr]   Downloaded winit v0.26.0
[INFO] [stderr]   Downloaded libc v0.2.109
[INFO] [stderr]   Downloaded web-sys v0.3.55
[INFO] [stderr]   Downloaded glium v0.31.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] b0b884cf2d2a6cf2fe3e18f1e2b0eccfcbe6dbc32f54d87835506b8acb0de1fe
[INFO] running `Command { std: "docker" "start" "b0b884cf2d2a6cf2fe3e18f1e2b0eccfcbe6dbc32f54d87835506b8acb0de1fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0b884cf2d2a6cf2fe3e18f1e2b0eccfcbe6dbc32f54d87835506b8acb0de1fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b0b884cf2d2a6cf2fe3e18f1e2b0eccfcbe6dbc32f54d87835506b8acb0de1fe" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0b884cf2d2a6cf2fe3e18f1e2b0eccfcbe6dbc32f54d87835506b8acb0de1fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "b0b884cf2d2a6cf2fe3e18f1e2b0eccfcbe6dbc32f54d87835506b8acb0de1fe" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: binary `cellular_automata` should have a kebab-case name
[INFO] [stderr]    |
[INFO] [stderr]  1 | /opt/rustwide/target/.../cellular_automata
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `cellular-automata`, convert `package.name`
[INFO] [stderr]   --> Cargo.toml:9:8
[INFO] [stderr]    |
[INFO] [stderr]  9 - name = "cellular_automata"
[INFO] [stderr]  9 + name = "cellular-automata"
[INFO] [stderr]    |
[INFO] [stderr] help: to change the binary name to `cellular-automata`, specify `bin.name`
[INFO] [stderr]   --> Cargo.toml:10:19
[INFO] [stderr]    |
[INFO] [stderr] 10 ~ version = "0.1.0"
[INFO] [stderr] 11 + [[bin]]
[INFO] [stderr] 12 + name = "cellular-automata"
[INFO] [stderr] 13 + path = "src/main.rs"
[INFO] [stderr]    |
[INFO] [stderr] warning: `cellular_automata` (manifest) generated 1 warning
[INFO] [stderr]    Compiling libc v0.2.109
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling proc-macro2 v1.0.33
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking libloading v0.7.2
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking bytemuck v1.7.2
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking safe_arch v0.6.0
[INFO] [stderr]    Compiling winit v0.26.0
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling nom v7.1.0
[INFO] [stderr]     Checking raw-window-handle v0.4.2
[INFO] [stderr]    Compiling paste v1.0.6
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking gimli v0.26.1
[INFO] [stderr]     Checking rustc-demangle v0.1.21
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling wayland-sys v0.29.1
[INFO] [stderr]    Compiling x11-dl v2.19.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling wayland-scanner v0.29.1
[INFO] [stderr]    Compiling smithay-client-toolkit v0.15.2
[INFO] [stderr]     Checking object v0.27.1
[INFO] [stderr]     Checking matrixmultiply v0.3.2
[INFO] [stderr]     Checking takeable-option v0.5.0
[INFO] [stderr]     Checking boolvec v0.2.6
[INFO] [stderr]     Checking wide v0.7.2
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling glium v0.31.0
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking approx v0.5.0
[INFO] [stderr]    Compiling wayland-client v0.29.1
[INFO] [stderr]    Compiling wayland-protocols v0.29.1
[INFO] [stderr]     Checking nix v0.22.0
[INFO] [stderr]     Checking memmap2 v0.3.1
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking mio v0.8.0
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking addr2line v0.17.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking simba v0.6.0
[INFO] [stderr]     Checking xcursor v0.3.4
[INFO] [stderr]     Checking wayland-commons v0.29.1
[INFO] [stderr]     Checking calloop v0.9.1
[INFO] [stderr]     Checking wayland-cursor v0.29.1
[INFO] [stderr]     Checking wayland-egl v0.29.1
[INFO] [stderr]     Checking nalgebra v0.29.0
[INFO] [stderr]     Checking nalgebra-glm v0.15.0
[INFO] [stderr]     Checking glutin v0.28.0
[INFO] [stderr]     Checking cellular_automata v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::ffi::c_void`
[INFO] [stdout]  --> src/cell_grid.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ffi::c_void;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::ffi::c_void`
[INFO] [stdout]  --> src/cell_grid.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::ffi::c_void;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `screen_width`
[INFO] [stdout]   --> src/cell_grid.rs:23:65
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(display: &Display, num_rows: i32, num_cols: i32, screen_width: f32, screen_height: f32) -> Self
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_screen_width`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `screen_width`
[INFO] [stdout]   --> src/cell_grid.rs:23:65
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(display: &Display, num_rows: i32, num_cols: i32, screen_width: f32, screen_height: f32) -> Self
[INFO] [stdout]    |                                                                 ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_screen_width`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/cell_grid.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(display: &Display, num_rows: i32, num_cols: i32, screen_width: f32, screen_height: f32) -> Self
[INFO] [stdout]    |     ---------------------------------------------------------------------------------------------------------- move the `impl` block outside of this associated function `new`
[INFO] [stdout] ...
[INFO] [stdout] 33 |         implement_vertex!(Vertex, position);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         `Vertex` is not local
[INFO] [stdout]    |         `Vertex` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the macro `implement_vertex` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the macro `implement_vertex` may come from an old version of the `glium` crate, try updating your dependency with `cargo update -p glium`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `implement_vertex` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item
[INFO] [stdout]   --> src/cell_grid.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn new(display: &Display, num_rows: i32, num_cols: i32, screen_width: f32, screen_height: f32) -> Self
[INFO] [stdout]    |     ---------------------------------------------------------------------------------------------------------- move the `impl` block outside of this associated function `new`
[INFO] [stdout] ...
[INFO] [stdout] 33 |         implement_vertex!(Vertex, position);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         `Vertex` is not local
[INFO] [stdout]    |         `Vertex` is not local
[INFO] [stdout]    |
[INFO] [stdout]    = note: the macro `implement_vertex` defines the non-local `impl`, and may need to be changed
[INFO] [stdout]    = note: the macro `implement_vertex` may come from an old version of the `glium` crate, try updating your dependency with `cargo update -p glium`
[INFO] [stdout]    = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl`
[INFO] [stdout]    = note: `#[warn(non_local_definitions)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `implement_vertex` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/shader.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     vertex_file.read_to_string(&mut vertex_source);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let _ = vertex_file.read_to_string(&mut vertex_source);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/shader.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     vertex_file.read_to_string(&mut vertex_source);
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let _ = vertex_file.read_to_string(&mut vertex_source);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/shader.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fragment_file.read_to_string(&mut fragment_source);
[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] 22 |     let _ = fragment_file.read_to_string(&mut fragment_source);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/shader.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     fragment_file.read_to_string(&mut fragment_source);
[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] 22 |     let _ = fragment_file.read_to_string(&mut fragment_source);
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 45.21s
[INFO] running `Command { std: "docker" "inspect" "b0b884cf2d2a6cf2fe3e18f1e2b0eccfcbe6dbc32f54d87835506b8acb0de1fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0b884cf2d2a6cf2fe3e18f1e2b0eccfcbe6dbc32f54d87835506b8acb0de1fe", kill_on_drop: false }`
[INFO] [stdout] b0b884cf2d2a6cf2fe3e18f1e2b0eccfcbe6dbc32f54d87835506b8acb0de1fe
