[INFO] cloning repository https://github.com/And678/tree-game [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/And678/tree-game" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnd678%2Ftree-game", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnd678%2Ftree-game'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f8e307a82892d257bd8e78d428933593f7152bff [INFO] testing And678/tree-game against beta-2022-02-22 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAnd678%2Ftree-game" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/And678/tree-game on toolchain beta-2022-02-22 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/And678/tree-game [INFO] finished tweaking git repo https://github.com/And678/tree-game [INFO] tweaked toml for git repo https://github.com/And678/tree-game written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/And678/tree-game already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] faf22d08a68f800a9a229b03d1ebfbcae09944707e7b9cba85323174e46c8aaf [INFO] running `Command { std: "docker" "start" "-a" "faf22d08a68f800a9a229b03d1ebfbcae09944707e7b9cba85323174e46c8aaf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "faf22d08a68f800a9a229b03d1ebfbcae09944707e7b9cba85323174e46c8aaf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "faf22d08a68f800a9a229b03d1ebfbcae09944707e7b9cba85323174e46c8aaf", kill_on_drop: false }` [INFO] [stdout] faf22d08a68f800a9a229b03d1ebfbcae09944707e7b9cba85323174e46c8aaf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 459ab0514a607379ed75fe1a0468d886de43891b09d671ef19785cd4ba0fbdba [INFO] running `Command { std: "docker" "start" "-a" "459ab0514a607379ed75fe1a0468d886de43891b09d671ef19785cd4ba0fbdba", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling rand_core v0.4.0 [INFO] [stderr] Compiling libm v0.1.3 [INFO] [stderr] Compiling pkg-config v0.3.14 [INFO] [stderr] Compiling typenum v1.10.0 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling cc v1.0.37 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling smallvec v0.6.9 [INFO] [stderr] Compiling claxon v0.4.2 [INFO] [stderr] Compiling hound v3.4.0 [INFO] [stderr] Compiling numtoa v0.1.0 [INFO] [stderr] Compiling matrixmultiply v0.2.2 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling alsa-sys v0.1.2 [INFO] [stderr] Compiling ogg v0.7.0 [INFO] [stderr] Compiling minimp3-sys v0.3.1 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling slice-deque v0.2.4 [INFO] [stderr] Compiling termion v1.5.2 [INFO] [stderr] Compiling lewton v0.9.4 [INFO] [stderr] Compiling generic-array v0.12.0 [INFO] [stderr] Compiling cpal v0.8.2 [INFO] [stderr] Compiling minimp3 v0.3.3 [INFO] [stderr] Compiling approx v0.3.2 [INFO] [stderr] Compiling alga v0.9.1 [INFO] [stderr] Compiling nalgebra v0.18.0 [INFO] [stderr] Compiling rodio v0.9.0 [INFO] [stderr] Compiling tree_game v0.9.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:102:23 [INFO] [stdout] | [INFO] [stdout] 102 | fn clear(stdout: &mut Write) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 102 - fn clear(stdout: &mut Write) { [INFO] [stdout] 102 + fn clear(stdout: &mut dyn Write) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:111:30 [INFO] [stdout] | [INFO] [stdout] 111 | fn render_timer(stdout: &mut Write, total: u64, current: u64) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 111 - fn render_timer(stdout: &mut Write, total: u64, current: u64) { [INFO] [stdout] 111 + fn render_timer(stdout: &mut dyn Write, total: u64, current: u64) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:134:24 [INFO] [stdout] | [INFO] [stdout] 134 | fn render(stdout: &mut Write, level: &Vec, score: i32, trees: i32, last_action: Actions) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 134 - fn render(stdout: &mut Write, level: &Vec, score: i32, trees: i32, last_action: Actions) { [INFO] [stdout] 134 + fn render(stdout: &mut dyn Write, level: &Vec, score: i32, trees: i32, last_action: Actions) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:179:33 [INFO] [stdout] | [INFO] [stdout] 179 | fn render_gameover(stdout: &mut Write) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 179 - fn render_gameover(stdout: &mut Write) { [INFO] [stdout] 179 + fn render_gameover(stdout: &mut dyn Write) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:191:26 [INFO] [stdout] | [INFO] [stdout] 191 | fn read_key(reader: &mut Read) -> Actions { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 191 - fn read_key(reader: &mut Read) -> Actions { [INFO] [stdout] 191 + fn read_key(reader: &mut dyn Read) -> Actions { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 51.82s [INFO] running `Command { std: "docker" "inspect" "459ab0514a607379ed75fe1a0468d886de43891b09d671ef19785cd4ba0fbdba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "459ab0514a607379ed75fe1a0468d886de43891b09d671ef19785cd4ba0fbdba", kill_on_drop: false }` [INFO] [stdout] 459ab0514a607379ed75fe1a0468d886de43891b09d671ef19785cd4ba0fbdba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7a062aa740be4a3093c2e868533f4bf72c3e1191616dbe76ecc9fe0f9680dd41 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "7a062aa740be4a3093c2e868533f4bf72c3e1191616dbe76ecc9fe0f9680dd41", kill_on_drop: false }` [INFO] [stderr] Compiling tree_game v0.9.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:102:23 [INFO] [stdout] | [INFO] [stdout] 102 | fn clear(stdout: &mut Write) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 102 - fn clear(stdout: &mut Write) { [INFO] [stdout] 102 + fn clear(stdout: &mut dyn Write) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:111:30 [INFO] [stdout] | [INFO] [stdout] 111 | fn render_timer(stdout: &mut Write, total: u64, current: u64) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 111 - fn render_timer(stdout: &mut Write, total: u64, current: u64) { [INFO] [stdout] 111 + fn render_timer(stdout: &mut dyn Write, total: u64, current: u64) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:134:24 [INFO] [stdout] | [INFO] [stdout] 134 | fn render(stdout: &mut Write, level: &Vec, score: i32, trees: i32, last_action: Actions) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 134 - fn render(stdout: &mut Write, level: &Vec, score: i32, trees: i32, last_action: Actions) { [INFO] [stdout] 134 + fn render(stdout: &mut dyn Write, level: &Vec, score: i32, trees: i32, last_action: Actions) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:179:33 [INFO] [stdout] | [INFO] [stdout] 179 | fn render_gameover(stdout: &mut Write) { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 179 - fn render_gameover(stdout: &mut Write) { [INFO] [stdout] 179 + fn render_gameover(stdout: &mut dyn Write) { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/main.rs:191:26 [INFO] [stdout] | [INFO] [stdout] 191 | fn read_key(reader: &mut Read) -> Actions { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: use `dyn` [INFO] [stdout] | [INFO] [stdout] 191 - fn read_key(reader: &mut Read) -> Actions { [INFO] [stdout] 191 + fn read_key(reader: &mut dyn Read) -> Actions { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.06s [INFO] running `Command { std: "docker" "inspect" "7a062aa740be4a3093c2e868533f4bf72c3e1191616dbe76ecc9fe0f9680dd41", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a062aa740be4a3093c2e868533f4bf72c3e1191616dbe76ecc9fe0f9680dd41", kill_on_drop: false }` [INFO] [stdout] 7a062aa740be4a3093c2e868533f4bf72c3e1191616dbe76ecc9fe0f9680dd41 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] cfd5f3c607947e1a65a7e31b3ef62162b3a98bb163afdbc5f78503497325b900 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "cfd5f3c607947e1a65a7e31b3ef62162b3a98bb163afdbc5f78503497325b900", kill_on_drop: false }` [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:102:23 [INFO] [stderr] | [INFO] [stderr] 102 | fn clear(stdout: &mut Write) { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 102 - fn clear(stdout: &mut Write) { [INFO] [stderr] 102 + fn clear(stdout: &mut dyn Write) { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:111:30 [INFO] [stderr] | [INFO] [stderr] 111 | fn render_timer(stdout: &mut Write, total: u64, current: u64) { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 111 - fn render_timer(stdout: &mut Write, total: u64, current: u64) { [INFO] [stderr] 111 + fn render_timer(stdout: &mut dyn Write, total: u64, current: u64) { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:134:24 [INFO] [stderr] | [INFO] [stderr] 134 | fn render(stdout: &mut Write, level: &Vec, score: i32, trees: i32, last_action: Actions) { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 134 - fn render(stdout: &mut Write, level: &Vec, score: i32, trees: i32, last_action: Actions) { [INFO] [stderr] 134 + fn render(stdout: &mut dyn Write, level: &Vec, score: i32, trees: i32, last_action: Actions) { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:179:33 [INFO] [stderr] | [INFO] [stderr] 179 | fn render_gameover(stdout: &mut Write) { [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 179 - fn render_gameover(stdout: &mut Write) { [INFO] [stderr] 179 + fn render_gameover(stdout: &mut dyn Write) { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/main.rs:191:26 [INFO] [stderr] | [INFO] [stderr] 191 | fn read_key(reader: &mut Read) -> Actions { [INFO] [stderr] | ^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: use `dyn` [INFO] [stderr] | [INFO] [stderr] 191 - fn read_key(reader: &mut Read) -> Actions { [INFO] [stderr] 191 + fn read_key(reader: &mut dyn Read) -> Actions { [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `tree_game` (bin "tree_game" test) generated 5 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/tree_game-4fba166d43d5dba3) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "cfd5f3c607947e1a65a7e31b3ef62162b3a98bb163afdbc5f78503497325b900", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cfd5f3c607947e1a65a7e31b3ef62162b3a98bb163afdbc5f78503497325b900", kill_on_drop: false }` [INFO] [stdout] cfd5f3c607947e1a65a7e31b3ef62162b3a98bb163afdbc5f78503497325b900