[INFO] crate terminal_graphics 0.1.5 is already in cache
[INFO] testing terminal_graphics-0.1.5 against 1.44.0 for beta-1.45-1
[INFO] extracting crate terminal_graphics 0.1.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate terminal_graphics 0.1.5 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate terminal_graphics 0.1.5
[INFO] finished tweaking crates.io crate terminal_graphics 0.1.5
[INFO] tweaked toml for crates.io crate terminal_graphics 0.1.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stdout] 15ef84b499f7162de0821670cd17d105bd4358941ffbee2a1deb2535e769ea75
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "15ef84b499f7162de0821670cd17d105bd4358941ffbee2a1deb2535e769ea75"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling terminal_graphics v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/container.rs:17:29
[INFO] [stderr]    |
[INFO] [stderr] 17 |     content: Option<&'a mut Graphic>,
[INFO] [stderr]    |                             ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/container.rs:41:26
[INFO] [stderr]    |
[INFO] [stderr] 41 |         graphic: &'a mut Graphic,
[INFO] [stderr]    |                          ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/container.rs:62:52
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn set_content(&mut self, graphic: &'a mut Graphic) {
[INFO] [stderr]    |                                                    ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:48:35
[INFO] [stderr]    |
[INFO] [stderr] 48 |     graphics: HashMap<String, Box<Graphic>>,
[INFO] [stderr]    |                                   ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:72:58
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn add_named(&mut self, name: &str, graphic: Box<Graphic>) {
[INFO] [stderr]    |                                                          ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:77:68
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn get_mut_named(&mut self, name: &str) -> Option<&mut Box<Graphic>> {
[INFO] [stderr]    |                                                                    ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:82:56
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn get_named(&self, name: &str) -> Option<&Box<Graphic>> {
[INFO] [stderr]    |                                                        ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/display/display.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |             for mut pixel in pixels {
[INFO] [stderr]    |                 ----^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `"docker" "inspect" "15ef84b499f7162de0821670cd17d105bd4358941ffbee2a1deb2535e769ea75"`
[INFO] running `"docker" "rm" "-f" "15ef84b499f7162de0821670cd17d105bd4358941ffbee2a1deb2535e769ea75"`
[INFO] [stdout] 15ef84b499f7162de0821670cd17d105bd4358941ffbee2a1deb2535e769ea75
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b2d72589aa61ae71ed3d9fa9ee338616ac001e9c073ef208f4db8d88bc02f1bf
[INFO] running `"docker" "start" "-a" "b2d72589aa61ae71ed3d9fa9ee338616ac001e9c073ef208f4db8d88bc02f1bf"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling terminal_graphics v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/container.rs:17:29
[INFO] [stderr]    |
[INFO] [stderr] 17 |     content: Option<&'a mut Graphic>,
[INFO] [stderr]    |                             ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/container.rs:41:26
[INFO] [stderr]    |
[INFO] [stderr] 41 |         graphic: &'a mut Graphic,
[INFO] [stderr]    |                          ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/container.rs:62:52
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn set_content(&mut self, graphic: &'a mut Graphic) {
[INFO] [stderr]    |                                                    ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:48:35
[INFO] [stderr]    |
[INFO] [stderr] 48 |     graphics: HashMap<String, Box<Graphic>>,
[INFO] [stderr]    |                                   ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:72:58
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn add_named(&mut self, name: &str, graphic: Box<Graphic>) {
[INFO] [stderr]    |                                                          ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:77:68
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn get_mut_named(&mut self, name: &str) -> Option<&mut Box<Graphic>> {
[INFO] [stderr]    |                                                                    ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:82:56
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn get_named(&self, name: &str) -> Option<&Box<Graphic>> {
[INFO] [stderr]    |                                                        ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/display/display.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |             for mut pixel in pixels {
[INFO] [stderr]    |                 ----^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/container.rs:17:29
[INFO] [stderr]    |
[INFO] [stderr] 17 |     content: Option<&'a mut Graphic>,
[INFO] [stderr]    |                             ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/container.rs:41:26
[INFO] [stderr]    |
[INFO] [stderr] 41 |         graphic: &'a mut Graphic,
[INFO] [stderr]    |                          ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/container.rs:62:52
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn set_content(&mut self, graphic: &'a mut Graphic) {
[INFO] [stderr]    |                                                    ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:48:35
[INFO] [stderr]    |
[INFO] [stderr] 48 |     graphics: HashMap<String, Box<Graphic>>,
[INFO] [stderr]    |                                   ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:72:58
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn add_named(&mut self, name: &str, graphic: Box<Graphic>) {
[INFO] [stderr]    |                                                          ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:77:68
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn get_mut_named(&mut self, name: &str) -> Option<&mut Box<Graphic>> {
[INFO] [stderr]    |                                                                    ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:82:56
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn get_named(&self, name: &str) -> Option<&Box<Graphic>> {
[INFO] [stderr]    |                                                        ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/display/display.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |             for mut pixel in pixels {
[INFO] [stderr]    |                 ----^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `"docker" "inspect" "b2d72589aa61ae71ed3d9fa9ee338616ac001e9c073ef208f4db8d88bc02f1bf"`
[INFO] running `"docker" "rm" "-f" "b2d72589aa61ae71ed3d9fa9ee338616ac001e9c073ef208f4db8d88bc02f1bf"`
[INFO] [stdout] b2d72589aa61ae71ed3d9fa9ee338616ac001e9c073ef208f4db8d88bc02f1bf
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stdout] c759b8ba2bd381f4db0363eb521f71fac42800a1ba1b1729b5b89f34f8ecfcd4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "c759b8ba2bd381f4db0363eb521f71fac42800a1ba1b1729b5b89f34f8ecfcd4"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/container.rs:17:29
[INFO] [stderr]    |
[INFO] [stderr] 17 |     content: Option<&'a mut Graphic>,
[INFO] [stderr]    |                             ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/container.rs:17:29
[INFO] [stderr]    |
[INFO] [stderr] 17 |     content: Option<&'a mut Graphic>,
[INFO] [stderr]    |                             ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/container.rs:41:26
[INFO] [stderr]    |
[INFO] [stderr] 41 |         graphic: &'a mut Graphic,
[INFO] [stderr]    |                          ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/container.rs:62:52
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn set_content(&mut self, graphic: &'a mut Graphic) {
[INFO] [stderr]    |                                                    ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/container.rs:41:26
[INFO] [stderr]    |
[INFO] [stderr] 41 |         graphic: &'a mut Graphic,
[INFO] [stderr]    |                          ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:48:35
[INFO] [stderr]    |
[INFO] [stderr] 48 |     graphics: HashMap<String, Box<Graphic>>,
[INFO] [stderr]    |                                   ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/container.rs:62:52
[INFO] [stderr]    |
[INFO] [stderr] 62 |     pub fn set_content(&mut self, graphic: &'a mut Graphic) {
[INFO] [stderr]    |                                                    ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:72:58
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn add_named(&mut self, name: &str, graphic: Box<Graphic>) {
[INFO] [stderr]    |                                                          ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:48:35
[INFO] [stderr]    |
[INFO] [stderr] 48 |     graphics: HashMap<String, Box<Graphic>>,
[INFO] [stderr]    |                                   ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:77:68
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn get_mut_named(&mut self, name: &str) -> Option<&mut Box<Graphic>> {
[INFO] [stderr]    |                                                                    ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:72:58
[INFO] [stderr]    |
[INFO] [stderr] 72 |     pub fn add_named(&mut self, name: &str, graphic: Box<Graphic>) {
[INFO] [stderr]    |                                                          ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:82:56
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn get_named(&self, name: &str) -> Option<&Box<Graphic>> {
[INFO] [stderr]    |                                                        ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:77:68
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn get_mut_named(&mut self, name: &str) -> Option<&mut Box<Graphic>> {
[INFO] [stderr]    |                                                                    ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/display/display.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |             for mut pixel in pixels {
[INFO] [stderr]    |                 ----^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/graphics/mod.rs:82:56
[INFO] [stderr]    |
[INFO] [stderr] 82 |     pub fn get_named(&self, name: &str) -> Option<&Box<Graphic>> {
[INFO] [stderr]    |                                                        ^^^^^^^ help: use `dyn`: `dyn Graphic`
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/display/display.rs:48:17
[INFO] [stderr]    |
[INFO] [stderr] 48 |             for mut pixel in pixels {
[INFO] [stderr]    |                 ----^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/terminal_graphics-9a930195fc045e4f
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] test display::tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/main-2c36a421fac04b80
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests terminal_graphics
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/display/colour.rs - display::colour::Colour::get_codes (line 145) ... ok
[INFO] [stdout] test src/display/colour.rs - display::colour::Colour::variants (line 81) ... ok
[INFO] [stdout] test src/display/colour.rs - display::colour::Colour::of (line 29) ... ok
[INFO] [stdout] test src/display/colour.rs - display::colour::Colour::get_rbg (line 177) ... ok
[INFO] [stdout] test src/display/colour.rs - display::colour::Colour::from_rgb (line 110) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "c759b8ba2bd381f4db0363eb521f71fac42800a1ba1b1729b5b89f34f8ecfcd4"`
[INFO] running `"docker" "rm" "-f" "c759b8ba2bd381f4db0363eb521f71fac42800a1ba1b1729b5b89f34f8ecfcd4"`
[INFO] [stdout] c759b8ba2bd381f4db0363eb521f71fac42800a1ba1b1729b5b89f34f8ecfcd4