[INFO] cloning repository https://github.com/ParsaImi/RUST_riverride [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ParsaImi/RUST_riverride" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FParsaImi%2FRUST_riverride", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FParsaImi%2FRUST_riverride'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4284305bcbe92cc6b9a4eab18452f3cfb4103312 [INFO] checking ParsaImi/RUST_riverride against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FParsaImi%2FRUST_riverride" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ParsaImi/RUST_riverride on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ParsaImi/RUST_riverride [INFO] finished tweaking git repo https://github.com/ParsaImi/RUST_riverride [INFO] tweaked toml for git repo https://github.com/ParsaImi/RUST_riverride written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/ParsaImi/RUST_riverride 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b4f5b1e9b62ee0649d59e06048433468673aac2b188a9a5cf51c47f1c05b543b [INFO] running `Command { std: "docker" "start" "-a" "b4f5b1e9b62ee0649d59e06048433468673aac2b188a9a5cf51c47f1c05b543b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b4f5b1e9b62ee0649d59e06048433468673aac2b188a9a5cf51c47f1c05b543b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b4f5b1e9b62ee0649d59e06048433468673aac2b188a9a5cf51c47f1c05b543b", kill_on_drop: false }` [INFO] [stdout] b4f5b1e9b62ee0649d59e06048433468673aac2b188a9a5cf51c47f1c05b543b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] eaf452c3346904068247b2dd828af9302ca0ced5df199462c9290d2ee49c0dc1 [INFO] running `Command { std: "docker" "start" "-a" "eaf452c3346904068247b2dd828af9302ca0ced5df199462c9290d2ee49c0dc1", kill_on_drop: false }` [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking parking_lot_core v0.9.9 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking signal-hook-mio v0.2.3 [INFO] [stderr] Checking crossterm v0.27.0 [INFO] [stderr] Checking riverride v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `io` [INFO] [stdout] --> src/main.rs:2:27 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{time::Duration, io}; [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Color`, `ResetColor`, `SetBackgroundColor`, `SetForegroundColor`, `event`, `execute` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | execute, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 5 | style::{Color, Print, ResetColor, SetBackgroundColor, SetForegroundColor}, [INFO] [stdout] | ^^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 8 | event, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `io` [INFO] [stdout] --> src/main.rs:2:27 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{time::Duration, io}; [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Color`, `ResetColor`, `SetBackgroundColor`, `SetForegroundColor`, `event`, `execute` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | execute, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 5 | style::{Color, Print, ResetColor, SetBackgroundColor, SetForegroundColor}, [INFO] [stdout] | ^^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 8 | event, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `maxl` is never read [INFO] [stdout] --> src/main.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 20 | struct World{ [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 24 | maxl : u16, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `maxl` is never read [INFO] [stdout] --> src/main.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 20 | struct World{ [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 24 | maxl : u16, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | enable_raw_mode(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 60 | let _ = enable_raw_mode(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:110:14 [INFO] [stdout] | [INFO] [stdout] 110 | draw(&sc , &world); [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] 110 | let _ = draw(&sc , &world); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | enable_raw_mode(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 60 | let _ = enable_raw_mode(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:110:14 [INFO] [stdout] | [INFO] [stdout] 110 | draw(&sc , &world); [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] 110 | let _ = draw(&sc , &world); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.40s [INFO] running `Command { std: "docker" "inspect" "eaf452c3346904068247b2dd828af9302ca0ced5df199462c9290d2ee49c0dc1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eaf452c3346904068247b2dd828af9302ca0ced5df199462c9290d2ee49c0dc1", kill_on_drop: false }` [INFO] [stdout] eaf452c3346904068247b2dd828af9302ca0ced5df199462c9290d2ee49c0dc1 [INFO] checking ParsaImi/RUST_riverride against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FParsaImi%2FRUST_riverride" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ParsaImi/RUST_riverride on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ParsaImi/RUST_riverride [INFO] finished tweaking git repo https://github.com/ParsaImi/RUST_riverride [INFO] tweaked toml for git repo https://github.com/ParsaImi/RUST_riverride written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/ParsaImi/RUST_riverride 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 15aa057ecf81a78ec5556a46fbb8bb55d8c2b835c43737ec62c87107b4169216 [INFO] running `Command { std: "docker" "start" "-a" "15aa057ecf81a78ec5556a46fbb8bb55d8c2b835c43737ec62c87107b4169216", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "15aa057ecf81a78ec5556a46fbb8bb55d8c2b835c43737ec62c87107b4169216", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15aa057ecf81a78ec5556a46fbb8bb55d8c2b835c43737ec62c87107b4169216", kill_on_drop: false }` [INFO] [stdout] 15aa057ecf81a78ec5556a46fbb8bb55d8c2b835c43737ec62c87107b4169216 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f11be136e3d4e8f2d3d7bfacab92fcf3cc99fca4b8c85aca4902742f08e29007 [INFO] running `Command { std: "docker" "start" "-a" "f11be136e3d4e8f2d3d7bfacab92fcf3cc99fca4b8c85aca4902742f08e29007", kill_on_drop: false }` [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking parking_lot_core v0.9.9 [INFO] [stderr] Checking signal-hook-mio v0.2.3 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking crossterm v0.27.0 [INFO] [stderr] Checking riverride v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `io` [INFO] [stdout] --> src/main.rs:2:27 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{time::Duration, io}; [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Color`, `ResetColor`, `SetBackgroundColor`, `SetForegroundColor`, `event`, `execute` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | execute, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 5 | style::{Color, Print, ResetColor, SetBackgroundColor, SetForegroundColor}, [INFO] [stdout] | ^^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 8 | event, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `io` [INFO] [stdout] --> src/main.rs:2:27 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{time::Duration, io}; [INFO] [stdout] | ^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Color`, `ResetColor`, `SetBackgroundColor`, `SetForegroundColor`, `event`, `execute` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | execute, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] 5 | style::{Color, Print, ResetColor, SetBackgroundColor, SetForegroundColor}, [INFO] [stdout] | ^^^^^ ^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 8 | event, [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `maxl` is never read [INFO] [stdout] --> src/main.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 20 | struct World{ [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 24 | maxl : u16, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | enable_raw_mode(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 60 | let _ = enable_raw_mode(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:110:14 [INFO] [stdout] | [INFO] [stdout] 110 | draw(&sc , &world); [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] 110 | let _ = draw(&sc , &world); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `maxl` is never read [INFO] [stdout] --> src/main.rs:24:5 [INFO] [stdout] | [INFO] [stdout] 20 | struct World{ [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 24 | maxl : u16, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:60:9 [INFO] [stdout] | [INFO] [stdout] 60 | enable_raw_mode(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 60 | let _ = enable_raw_mode(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:110:14 [INFO] [stdout] | [INFO] [stdout] 110 | draw(&sc , &world); [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] 110 | let _ = draw(&sc , &world); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.66s [INFO] running `Command { std: "docker" "inspect" "f11be136e3d4e8f2d3d7bfacab92fcf3cc99fca4b8c85aca4902742f08e29007", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f11be136e3d4e8f2d3d7bfacab92fcf3cc99fca4b8c85aca4902742f08e29007", kill_on_drop: false }` [INFO] [stdout] f11be136e3d4e8f2d3d7bfacab92fcf3cc99fca4b8c85aca4902742f08e29007