[INFO] cloning repository https://github.com/JordanJTW/RUST-8 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JordanJTW/RUST-8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJordanJTW%2FRUST-8", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJordanJTW%2FRUST-8'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0d21b0a4d0d76381d3b75191ccdcca37178bbd2c [INFO] checking JordanJTW/RUST-8 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJordanJTW%2FRUST-8" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/JordanJTW/RUST-8 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/JordanJTW/RUST-8 [INFO] finished tweaking git repo https://github.com/JordanJTW/RUST-8 [INFO] tweaked toml for git repo https://github.com/JordanJTW/RUST-8 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/JordanJTW/RUST-8 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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded bumpalo v2.3.0 [INFO] [stderr] Downloaded pistoncore-window v0.37.0 [INFO] [stderr] Downloaded pistoncore-glutin_window v0.54.0 [INFO] [stderr] Downloaded wayland-sys v0.21.11 [INFO] [stderr] Downloaded num-iter v0.1.37 [INFO] [stderr] Downloaded rustc-demangle v0.1.13 [INFO] [stderr] Downloaded backtrace v0.3.14 [INFO] [stderr] Downloaded num-rational v0.2.1 [INFO] [stderr] Downloaded pistoncore-event_loop v0.42.0 [INFO] [stderr] Downloaded piston2d-gfx_graphics v0.56.0 [INFO] [stderr] Downloaded backtrace-sys v0.1.28 [INFO] [stderr] Downloaded khronos_api v3.0.0 [INFO] [stderr] Downloaded piston_window v0.89.0 [INFO] [stderr] Downloaded piston v0.42.0 [INFO] [stderr] Downloaded derivative v1.0.2 [INFO] [stderr] Downloaded gif v0.10.1 [INFO] [stderr] Downloaded either v1.5.1 [INFO] [stderr] Downloaded memoffset v0.2.1 [INFO] [stderr] Downloaded crossbeam-epoch v0.3.1 [INFO] [stderr] Downloaded crossbeam-utils v0.2.2 [INFO] [stderr] Downloaded crossbeam-deque v0.2.0 [INFO] [stderr] Downloaded num_cpus v1.10.0 [INFO] [stderr] Downloaded rayon-core v1.4.1 [INFO] [stderr] Downloaded rayon v1.0.3 [INFO] [stderr] Downloaded jpeg-decoder v0.1.15 [INFO] [stderr] Downloaded safe-transmute v0.10.1 [INFO] [stderr] Downloaded num-derive v0.2.4 [INFO] [stderr] Downloaded image v0.21.0 [INFO] [stderr] Downloaded piston-gfx_texture v0.35.0 [INFO] [stderr] Downloaded vecmath v0.3.1 [INFO] [stderr] Downloaded piston2d-graphics v0.30.0 [INFO] [stderr] Downloaded gleam v0.6.14 [INFO] [stderr] Downloaded cocoa v0.18.4 [INFO] [stderr] Downloaded core-foundation v0.6.3 [INFO] [stderr] Downloaded objc v0.2.5 [INFO] [stderr] Downloaded stable_deref_trait v1.1.1 [INFO] [stderr] Downloaded wayland-protocols v0.21.11 [INFO] [stderr] Downloaded smithay-client-toolkit v0.4.5 [INFO] [stderr] Downloaded downcast-rs v1.0.3 [INFO] [stderr] Downloaded cc v1.0.31 [INFO] [stderr] Downloaded dlib v0.4.1 [INFO] [stderr] Downloaded piston-viewport v0.5.0 [INFO] [stderr] Downloaded serde v1.0.89 [INFO] [stderr] Downloaded serde_derive v1.0.89 [INFO] [stderr] Downloaded deflate v0.7.19 [INFO] [stderr] Downloaded png v0.14.0 [INFO] [stderr] Downloaded owning_ref v0.4.0 [INFO] [stderr] Downloaded stb_truetype v0.2.6 [INFO] [stderr] Downloaded rusttype v0.7.5 [INFO] [stderr] Downloaded nix v0.13.0 [INFO] [stderr] Downloaded nix v0.12.0 [INFO] [stderr] Downloaded wayland-scanner v0.21.11 [INFO] [stderr] Downloaded libloading v0.5.0 [INFO] [stderr] Downloaded wayland-client v0.21.11 [INFO] [stderr] Downloaded x11-dl v2.18.3 [INFO] [stderr] Downloaded syn v0.15.29 [INFO] [stderr] Downloaded arrayvec v0.4.10 [INFO] [stderr] Downloaded andrew v0.2.0 [INFO] [stderr] Downloaded wayland-commons v0.21.11 [INFO] [stderr] Downloaded pistoncore-input v0.24.0 [INFO] [stderr] Downloaded piston-float v0.3.0 [INFO] [stderr] Downloaded rand_jitter v0.1.3 [INFO] [stderr] Downloaded autocfg v0.1.2 [INFO] [stderr] Downloaded quote v0.6.11 [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cb0d33a2a58b6e6efcfd1ea0fd085aa24417d8bf8383eaaa8349dab8164009cc [INFO] running `Command { std: "docker" "start" "-a" "cb0d33a2a58b6e6efcfd1ea0fd085aa24417d8bf8383eaaa8349dab8164009cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cb0d33a2a58b6e6efcfd1ea0fd085aa24417d8bf8383eaaa8349dab8164009cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cb0d33a2a58b6e6efcfd1ea0fd085aa24417d8bf8383eaaa8349dab8164009cc", kill_on_drop: false }` [INFO] [stdout] cb0d33a2a58b6e6efcfd1ea0fd085aa24417d8bf8383eaaa8349dab8164009cc [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 233d2ca1f30f461166c00dc63c0439438d8f0fb7ec799f5c85281eee698bfe5d [INFO] running `Command { std: "docker" "start" "-a" "233d2ca1f30f461166c00dc63c0439438d8f0fb7ec799f5c85281eee698bfe5d", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling libc v0.2.50 [INFO] [stderr] Checking cfg-if v0.1.7 [INFO] [stderr] Compiling syn v0.15.29 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking lazy_static v1.3.0 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Compiling xml-rs v0.8.0 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Compiling cc v1.0.31 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling khronos_api v3.0.0 [INFO] [stderr] Checking piston-float v0.3.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling nix v0.12.0 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Compiling rayon-core v1.4.1 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Checking piston-viewport v0.5.0 [INFO] [stderr] Compiling serde v1.0.89 [INFO] [stderr] Compiling khronos_api v2.2.0 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [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] Checking rand_isaac v0.1.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Compiling gl_generator v0.10.0 [INFO] [stderr] Checking stb_truetype v0.2.6 [INFO] [stderr] Checking num_cpus v1.10.0 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking rand_jitter v0.1.3 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling nix v0.13.0 [INFO] [stderr] Checking same-file v1.0.4 [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Compiling num-derive v0.2.4 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.40 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Compiling quote v0.6.11 [INFO] [stderr] Compiling rayon v1.0.3 [INFO] [stderr] Checking downcast-rs v1.0.3 [INFO] [stderr] Compiling pkg-config v0.3.14 [INFO] [stderr] Checking adler32 v1.0.3 [INFO] [stderr] Compiling xml-rs v0.7.0 [INFO] [stderr] Compiling wayland-scanner v0.21.11 [INFO] [stderr] Checking approx v0.3.2 [INFO] [stderr] Checking ordered-float v1.0.2 [INFO] [stderr] Checking line_drawing v0.7.0 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Checking walkdir v2.2.7 [INFO] [stderr] Checking draw_state v0.8.0 [INFO] [stderr] Checking xdg v2.2.0 [INFO] [stderr] Compiling libloading v0.5.0 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Checking smallvec v0.6.9 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Checking rusttype v0.7.5 [INFO] [stderr] Checking shader_version v0.3.0 [INFO] [stderr] Checking either v1.5.1 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking deflate v0.7.19 [INFO] [stderr] Checking inflate v0.4.5 [INFO] [stderr] Checking memmap v0.7.0 [INFO] [stderr] Checking dlib v0.4.1 [INFO] [stderr] Compiling bumpalo v2.3.0 [INFO] [stderr] Checking color_quant v1.0.1 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling x11-dl v2.18.3 [INFO] [stderr] Checking wayland-sys v0.21.11 [INFO] [stderr] Checking gif v0.10.1 [INFO] [stderr] Compiling gl_generator v0.9.0 [INFO] [stderr] Checking png v0.14.0 [INFO] [stderr] Compiling gl v0.11.0 [INFO] [stderr] Checking andrew v0.2.0 [INFO] [stderr] Compiling glutin v0.19.0 [INFO] [stderr] Checking shared_library v0.1.9 [INFO] [stderr] Checking piston-texture v0.6.0 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking safe-transmute v0.10.1 [INFO] [stderr] Checking osmesa-sys v0.1.2 [INFO] [stderr] Checking vecmath v0.3.1 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Compiling wasm-bindgen v0.2.40 [INFO] [stderr] Checking ucd-util v0.1.3 [INFO] [stderr] Checking read_color v1.0.0 [INFO] [stderr] Checking interpolation v0.2.0 [INFO] [stderr] Compiling regex v1.1.2 [INFO] [stderr] Checking regex-syntax v0.6.5 [INFO] [stderr] Checking aho-corasick v0.6.10 [INFO] [stderr] Compiling gfx_gl v0.5.0 [INFO] [stderr] Checking piston2d-graphics v0.30.0 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking utf8-ranges v1.0.2 [INFO] [stderr] Checking piston-shaders_graphics2d v0.3.1 [INFO] [stderr] Compiling wayland-client v0.21.11 [INFO] [stderr] Compiling wayland-protocols v0.21.11 [INFO] [stderr] Checking humantime v1.2.0 [INFO] [stderr] Checking wayland-commons v0.21.11 [INFO] [stderr] Checking atty v0.2.11 [INFO] [stderr] Checking termcolor v1.0.4 [INFO] [stderr] Checking jpeg-decoder v0.1.15 [INFO] [stderr] Compiling wasm-bindgen-backend v0.2.40 [INFO] [stderr] Checking env_logger v0.6.1 [INFO] [stderr] Compiling serde_derive v1.0.89 [INFO] [stderr] Compiling derivative v1.0.2 [INFO] [stderr] Compiling wasm-bindgen-macro-support v0.2.40 [INFO] [stderr] Compiling wasm-bindgen-macro v0.2.40 [INFO] [stderr] Checking tiff v0.2.2 [INFO] [stderr] Checking gfx_core v0.8.3 [INFO] [stderr] Checking image v0.21.0 [INFO] [stderr] Checking console_error_panic_hook v0.1.6 [INFO] [stderr] Checking gfx v0.17.1 [INFO] [stderr] Checking gfx_device_gl v0.15.5 [INFO] [stderr] Checking pistoncore-input v0.24.0 [INFO] [stderr] Checking piston-gfx_texture v0.35.0 [INFO] [stderr] Checking piston2d-gfx_graphics v0.56.0 [INFO] [stderr] Checking pistoncore-window v0.37.0 [INFO] [stderr] Checking pistoncore-event_loop v0.42.0 [INFO] [stderr] Checking piston v0.42.0 [INFO] [stderr] Checking smithay-client-toolkit v0.4.5 [INFO] [stderr] Checking winit v0.18.1 [INFO] [stderr] Checking pistoncore-glutin_window v0.54.0 [INFO] [stderr] Checking piston_window v0.89.0 [INFO] [stderr] Checking rust-8 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the item `Record` is imported redundantly [INFO] [stdout] --> src/chip8.rs:25:11 [INFO] [stdout] | [INFO] [stdout] 3 | use log::*; [INFO] [stdout] | ------ the item `Record` is already imported here [INFO] [stdout] ... [INFO] [stdout] 25 | use log::{Record, Level, Metadata}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Level` is imported redundantly [INFO] [stdout] --> src/chip8.rs:25:19 [INFO] [stdout] | [INFO] [stdout] 3 | use log::*; [INFO] [stdout] | ------ the item `Level` is already imported here [INFO] [stdout] ... [INFO] [stdout] 25 | use log::{Record, Level, Metadata}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Metadata` is imported redundantly [INFO] [stdout] --> src/chip8.rs:25:26 [INFO] [stdout] | [INFO] [stdout] 3 | use log::*; [INFO] [stdout] | ------ the item `Metadata` is already imported here [INFO] [stdout] ... [INFO] [stdout] 25 | use log::{Record, Level, Metadata}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `LevelFilter` is imported redundantly [INFO] [stdout] --> src/chip8.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 3 | use log::*; [INFO] [stdout] | ------ the item `LevelFilter` is already imported here [INFO] [stdout] ... [INFO] [stdout] 43 | use log::LevelFilter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Record` is imported redundantly [INFO] [stdout] --> src/chip8.rs:25:11 [INFO] [stdout] | [INFO] [stdout] 3 | use log::*; [INFO] [stdout] | ------ the item `Record` is already imported here [INFO] [stdout] ... [INFO] [stdout] 25 | use log::{Record, Level, Metadata}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Level` is imported redundantly [INFO] [stdout] --> src/chip8.rs:25:19 [INFO] [stdout] | [INFO] [stdout] 3 | use log::*; [INFO] [stdout] | ------ the item `Level` is already imported here [INFO] [stdout] ... [INFO] [stdout] 25 | use log::{Record, Level, Metadata}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Metadata` is imported redundantly [INFO] [stdout] --> src/chip8.rs:25:26 [INFO] [stdout] | [INFO] [stdout] 3 | use log::*; [INFO] [stdout] | ------ the item `Metadata` is already imported here [INFO] [stdout] ... [INFO] [stdout] 25 | use log::{Record, Level, Metadata}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `LevelFilter` is imported redundantly [INFO] [stdout] --> src/chip8.rs:43:5 [INFO] [stdout] | [INFO] [stdout] 3 | use log::*; [INFO] [stdout] | ------ the item `LevelFilter` is already imported here [INFO] [stdout] ... [INFO] [stdout] 43 | use log::LevelFilter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `env_logger` is imported redundantly [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use env_logger; [INFO] [stdout] | ^^^^^^^^^^ the item `env_logger` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Key` is imported redundantly [INFO] [stdout] --> src/main.rs:36:13 [INFO] [stdout] | [INFO] [stdout] 6 | use piston_window::*; [INFO] [stdout] | ---------------- the item `Key` is already imported here [INFO] [stdout] ... [INFO] [stdout] 36 | use keyboard::Key; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/main.rs:138:44 [INFO] [stdout] | [INFO] [stdout] 138 | fn read_file(filename: &str) -> io::Result<(Vec)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 138 - fn read_file(filename: &str) -> io::Result<(Vec)> { [INFO] [stdout] 138 + fn read_file(filename: &str) -> io::Result> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `env_logger` is imported redundantly [INFO] [stdout] --> src/main.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use env_logger; [INFO] [stdout] | ^^^^^^^^^^ the item `env_logger` is already defined by prelude [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `Key` is imported redundantly [INFO] [stdout] --> src/main.rs:36:13 [INFO] [stdout] | [INFO] [stdout] 6 | use piston_window::*; [INFO] [stdout] | ---------------- the item `Key` is already imported here [INFO] [stdout] ... [INFO] [stdout] 36 | use keyboard::Key; [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/main.rs:138:44 [INFO] [stdout] | [INFO] [stdout] 138 | fn read_file(filename: &str) -> io::Result<(Vec)> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 138 - fn read_file(filename: &str) -> io::Result<(Vec)> { [INFO] [stdout] 138 + fn read_file(filename: &str) -> io::Result> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 36.36s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.40 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2` [INFO] running `Command { std: "docker" "inspect" "233d2ca1f30f461166c00dc63c0439438d8f0fb7ec799f5c85281eee698bfe5d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "233d2ca1f30f461166c00dc63c0439438d8f0fb7ec799f5c85281eee698bfe5d", kill_on_drop: false }` [INFO] [stdout] 233d2ca1f30f461166c00dc63c0439438d8f0fb7ec799f5c85281eee698bfe5d