[INFO] cloning repository https://github.com/dcastelltort/rusty-chip8 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dcastelltort/rusty-chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcastelltort%2Frusty-chip8", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcastelltort%2Frusty-chip8'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ba9b44d5f7544aceb4f40a965d49f18413abef9d [INFO] checking dcastelltort/rusty-chip8 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcastelltort%2Frusty-chip8" "/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/dcastelltort/rusty-chip8 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/dcastelltort/rusty-chip8 [INFO] finished tweaking git repo https://github.com/dcastelltort/rusty-chip8 [INFO] tweaked toml for git repo https://github.com/dcastelltort/rusty-chip8 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/dcastelltort/rusty-chip8 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] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded structopt-derive v0.2.8 [INFO] [stderr] Downloaded quicli v0.2.0 [INFO] [stderr] Downloaded serde_json v1.0.19 [INFO] [stderr] Downloaded quote v0.6.3 [INFO] [stderr] Downloaded structopt v0.2.8 [INFO] [stderr] Downloaded env_logger v0.5.10 [INFO] [stderr] Downloaded cc v1.0.17 [INFO] [stderr] Downloaded syn v0.14.2 [INFO] [stderr] Downloaded backtrace-sys v0.1.23 [INFO] [stderr] Downloaded rayon v0.9.0 [INFO] [stderr] Downloaded syn v0.13.11 [INFO] [stderr] Downloaded backtrace v0.3.8 [INFO] [stderr] Downloaded proc-macro2 v0.4.6 [INFO] [stderr] Downloaded serde_derive v1.0.66 [INFO] [stderr] Downloaded serde v1.0.66 [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] 9c8572b8d62e7d12893189b686869f0d465fbacad589c9a72823e4ebbbb7718a [INFO] running `Command { std: "docker" "start" "-a" "9c8572b8d62e7d12893189b686869f0d465fbacad589c9a72823e4ebbbb7718a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9c8572b8d62e7d12893189b686869f0d465fbacad589c9a72823e4ebbbb7718a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9c8572b8d62e7d12893189b686869f0d465fbacad589c9a72823e4ebbbb7718a", kill_on_drop: false }` [INFO] [stdout] 9c8572b8d62e7d12893189b686869f0d465fbacad589c9a72823e4ebbbb7718a [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] f401019e2e55c9ad71df1494de2ed6a437df6462745dddf886a639b6f6cc31b3 [INFO] running `Command { std: "docker" "start" "-a" "f401019e2e55c9ad71df1494de2ed6a437df6462745dddf886a639b6f6cc31b3", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.42 [INFO] [stderr] Checking cfg-if v0.1.3 [INFO] [stderr] Checking lazy_static v1.0.1 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling cc v1.0.17 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Compiling regex v1.0.0 [INFO] [stderr] Compiling serde v1.0.66 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Compiling proc-macro2 v0.3.8 [INFO] [stderr] Compiling proc-macro2 v0.4.6 [INFO] [stderr] Checking regex-syntax v0.6.0 [INFO] [stderr] Checking bitflags v1.0.3 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking rustc-demangle v0.1.8 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Checking thread_local v0.3.5 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Checking textwrap v0.9.0 [INFO] [stderr] Checking humantime v1.1.1 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Checking termcolor v0.3.6 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Checking itoa v0.4.1 [INFO] [stderr] Checking glob v0.2.11 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Compiling quote v0.6.3 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Checking atty v0.2.10 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Compiling syn v0.14.2 [INFO] [stderr] Compiling quote v0.5.2 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] Checking clap v2.31.2 [INFO] [stderr] Compiling syn v0.13.11 [INFO] [stderr] Compiling backtrace-sys v0.1.23 [INFO] [stderr] Checking rayon-core v1.4.0 [INFO] [stderr] Compiling synstructure v0.6.1 [INFO] [stderr] Checking rayon v0.9.0 [INFO] [stderr] Compiling failure_derive v0.1.1 [INFO] [stderr] Checking backtrace v0.3.8 [INFO] [stderr] Checking failure v0.1.1 [INFO] [stderr] Compiling serde_derive v1.0.66 [INFO] [stderr] Compiling structopt-derive v0.2.8 [INFO] [stderr] Checking env_logger v0.5.10 [INFO] [stderr] Checking structopt v0.2.8 [INFO] [stderr] Checking serde_json v1.0.19 [INFO] [stderr] Checking quicli v0.2.0 [INFO] [stderr] Checking rusty-chip8 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/main.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | #[macro_use] extern crate failure; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/main.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | #[macro_use] extern crate failure; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/cpu.rs:199:9 [INFO] [stdout] | [INFO] [stdout] 199 | (self.opcode & (0x0FFF as u16)) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 199 - (self.opcode & (0x0FFF as u16)) [INFO] [stdout] 199 + self.opcode & (0x0FFF as u16) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/cpu.rs:283:11 [INFO] [stdout] | [INFO] [stdout] 283 | if(self.sound_timer > 0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 283 - if(self.sound_timer > 0) [INFO] [stdout] 283 + if self.sound_timer > 0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `fs_read_write` has been stable since 1.26.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(fs_read_write)] //TO REMOVE with ugraded nightly or stable [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/cpu.rs:127:9 [INFO] [stdout] | [INFO] [stdout] 124 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 127 | unimplemented!(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] = note: this warning originates in the macro `unimplemented` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/cpu.rs:298:9 [INFO] [stdout] | [INFO] [stdout] 297 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 298 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/cpu.rs:318:9 [INFO] [stdout] | [INFO] [stdout] 303 | / loop [INFO] [stdout] 304 | | { [INFO] [stdout] 305 | | // Emulate one cycle [INFO] [stdout] 306 | | self.emulate_cycle(); [INFO] [stdout] ... | [INFO] [stdout] 315 | | self.set_keys()?; [INFO] [stdout] 316 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 317 | [INFO] [stdout] 318 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `gfx` and `keypad` are never read [INFO] [stdout] --> src/cpu.rs:62:5 [INFO] [stdout] | [INFO] [stdout] 30 | pub struct Chip8 { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 62 | gfx : [u8; GFX_MEMORY_MAX], [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 86 | keypad : [u8;KEYPAD_MAX] [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/cpu.rs:199:9 [INFO] [stdout] | [INFO] [stdout] 199 | (self.opcode & (0x0FFF as u16)) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 199 - (self.opcode & (0x0FFF as u16)) [INFO] [stdout] 199 + self.opcode & (0x0FFF as u16) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/cpu.rs:283:11 [INFO] [stdout] | [INFO] [stdout] 283 | if(self.sound_timer > 0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 283 - if(self.sound_timer > 0) [INFO] [stdout] 283 + if self.sound_timer > 0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `fs_read_write` has been stable since 1.26.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(fs_read_write)] //TO REMOVE with ugraded nightly or stable [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | emulator.boot("placeholderfileame.rom"); [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] 14 | let _ = emulator.boot("placeholderfileame.rom"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | emulator.run(); [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] 15 | let _ = emulator.run(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `V` should have a snake case name [INFO] [stdout] --> src/cpu.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | V: [u8; REGISTERS_MAX], [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/cpu.rs:127:9 [INFO] [stdout] | [INFO] [stdout] 124 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 127 | unimplemented!(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] = note: this warning originates in the macro `unimplemented` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/cpu.rs:298:9 [INFO] [stdout] | [INFO] [stdout] 297 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 298 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/cpu.rs:318:9 [INFO] [stdout] | [INFO] [stdout] 303 | / loop [INFO] [stdout] 304 | | { [INFO] [stdout] 305 | | // Emulate one cycle [INFO] [stdout] 306 | | self.emulate_cycle(); [INFO] [stdout] ... | [INFO] [stdout] 315 | | self.set_keys()?; [INFO] [stdout] 316 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 317 | [INFO] [stdout] 318 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `gfx` and `keypad` are never read [INFO] [stdout] --> src/cpu.rs:62:5 [INFO] [stdout] | [INFO] [stdout] 30 | pub struct Chip8 { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 62 | gfx : [u8; GFX_MEMORY_MAX], [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 86 | keypad : [u8;KEYPAD_MAX] [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:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | emulator.boot("placeholderfileame.rom"); [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] 14 | let _ = emulator.boot("placeholderfileame.rom"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | emulator.run(); [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] 15 | let _ = emulator.run(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `V` should have a snake case name [INFO] [stdout] --> src/cpu.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | V: [u8; REGISTERS_MAX], [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.65s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.13.11, syn v0.14.2 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "f401019e2e55c9ad71df1494de2ed6a437df6462745dddf886a639b6f6cc31b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f401019e2e55c9ad71df1494de2ed6a437df6462745dddf886a639b6f6cc31b3", kill_on_drop: false }` [INFO] [stdout] f401019e2e55c9ad71df1494de2ed6a437df6462745dddf886a639b6f6cc31b3 [INFO] checking dcastelltort/rusty-chip8 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdcastelltort%2Frusty-chip8" "/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/dcastelltort/rusty-chip8 on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/dcastelltort/rusty-chip8 [INFO] finished tweaking git repo https://github.com/dcastelltort/rusty-chip8 [INFO] tweaked toml for git repo https://github.com/dcastelltort/rusty-chip8 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/dcastelltort/rusty-chip8 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0caed128efbd7722419c6be4a50ae082f14e202c00e034895131e1da9264e77d [INFO] running `Command { std: "docker" "start" "-a" "0caed128efbd7722419c6be4a50ae082f14e202c00e034895131e1da9264e77d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0caed128efbd7722419c6be4a50ae082f14e202c00e034895131e1da9264e77d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0caed128efbd7722419c6be4a50ae082f14e202c00e034895131e1da9264e77d", kill_on_drop: false }` [INFO] [stdout] 0caed128efbd7722419c6be4a50ae082f14e202c00e034895131e1da9264e77d [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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3a1e46ac8eda33d07c176fe787509e348d039871f70ca4ae9f77313f8ca65e3e [INFO] running `Command { std: "docker" "start" "-a" "3a1e46ac8eda33d07c176fe787509e348d039871f70ca4ae9f77313f8ca65e3e", kill_on_drop: false }` [INFO] [stderr] Checking libc v0.2.42 [INFO] [stderr] Checking cfg-if v0.1.3 [INFO] [stderr] Checking lazy_static v1.0.1 [INFO] [stderr] Compiling cc v1.0.17 [INFO] [stderr] Compiling unicode-xid v0.0.4 [INFO] [stderr] Compiling quote v0.3.15 [INFO] [stderr] Compiling regex v1.0.0 [INFO] [stderr] Compiling serde v1.0.66 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Compiling proc-macro2 v0.3.8 [INFO] [stderr] Compiling proc-macro2 v0.4.6 [INFO] [stderr] Checking regex-syntax v0.6.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking rustc-demangle v0.1.8 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Checking bitflags v1.0.3 [INFO] [stderr] Checking thread_local v0.3.5 [INFO] [stderr] Compiling synom v0.11.3 [INFO] [stderr] Checking textwrap v0.9.0 [INFO] [stderr] Checking termcolor v0.3.6 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Checking humantime v1.1.1 [INFO] [stderr] Checking log v0.4.1 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Checking itoa v0.4.1 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Compiling syn v0.11.11 [INFO] [stderr] Checking glob v0.2.11 [INFO] [stderr] Compiling quote v0.6.3 [INFO] [stderr] Compiling syn v0.14.2 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Checking atty v0.2.10 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Compiling quote v0.5.2 [INFO] [stderr] Checking aho-corasick v0.6.4 [INFO] [stderr] Checking clap v2.31.2 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Compiling syn v0.13.11 [INFO] [stderr] Compiling backtrace-sys v0.1.23 [INFO] [stderr] Compiling synstructure v0.6.1 [INFO] [stderr] Checking rayon-core v1.4.0 [INFO] [stderr] Checking rayon v0.9.0 [INFO] [stderr] Compiling failure_derive v0.1.1 [INFO] [stderr] Checking backtrace v0.3.8 [INFO] [stderr] Compiling structopt-derive v0.2.8 [INFO] [stderr] Checking failure v0.1.1 [INFO] [stderr] Checking env_logger v0.5.10 [INFO] [stderr] Checking structopt v0.2.8 [INFO] [stderr] Compiling serde_derive v1.0.66 [INFO] [stderr] Checking serde_json v1.0.19 [INFO] [stderr] Checking quicli v0.2.0 [INFO] [stderr] Checking rusty-chip8 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/main.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | #[macro_use] extern crate failure; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `#[macro_use]` import [INFO] [stdout] --> src/main.rs:4:1 [INFO] [stdout] | [INFO] [stdout] 4 | #[macro_use] extern crate failure; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/cpu.rs:199:9 [INFO] [stdout] | [INFO] [stdout] 199 | (self.opcode & (0x0FFF as u16)) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 199 - (self.opcode & (0x0FFF as u16)) [INFO] [stdout] 199 + self.opcode & (0x0FFF as u16) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/cpu.rs:283:11 [INFO] [stdout] | [INFO] [stdout] 283 | if(self.sound_timer > 0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 283 - if(self.sound_timer > 0) [INFO] [stdout] 283 + if self.sound_timer > 0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/cpu.rs:199:9 [INFO] [stdout] | [INFO] [stdout] 199 | (self.opcode & (0x0FFF as u16)) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 199 - (self.opcode & (0x0FFF as u16)) [INFO] [stdout] 199 + self.opcode & (0x0FFF as u16) [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around `if` condition [INFO] [stdout] --> src/cpu.rs:283:11 [INFO] [stdout] | [INFO] [stdout] 283 | if(self.sound_timer > 0) [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 283 - if(self.sound_timer > 0) [INFO] [stdout] 283 + if self.sound_timer > 0 [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `fs_read_write` has been stable since 1.26.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(fs_read_write)] //TO REMOVE with ugraded nightly or stable [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `fs_read_write` has been stable since 1.26.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:2:12 [INFO] [stdout] | [INFO] [stdout] 2 | #![feature(fs_read_write)] //TO REMOVE with ugraded nightly or stable [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/cpu.rs:127:9 [INFO] [stdout] | [INFO] [stdout] 124 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 127 | unimplemented!(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] = note: this warning originates in the macro `unimplemented` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable statement [INFO] [stdout] --> src/cpu.rs:127:9 [INFO] [stdout] | [INFO] [stdout] 124 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 127 | unimplemented!(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ unreachable statement [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] = note: this warning originates in the macro `unimplemented` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/cpu.rs:298:9 [INFO] [stdout] | [INFO] [stdout] 297 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 298 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/cpu.rs:318:9 [INFO] [stdout] | [INFO] [stdout] 303 | / loop [INFO] [stdout] 304 | | { [INFO] [stdout] 305 | | // Emulate one cycle [INFO] [stdout] 306 | | self.emulate_cycle(); [INFO] [stdout] ... | [INFO] [stdout] 315 | | self.set_keys()?; [INFO] [stdout] 316 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 317 | [INFO] [stdout] 318 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/cpu.rs:298:9 [INFO] [stdout] | [INFO] [stdout] 297 | unimplemented!(); [INFO] [stdout] | ---------------- any code following this expression is unreachable [INFO] [stdout] 298 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/cpu.rs:318:9 [INFO] [stdout] | [INFO] [stdout] 303 | / loop [INFO] [stdout] 304 | | { [INFO] [stdout] 305 | | // Emulate one cycle [INFO] [stdout] 306 | | self.emulate_cycle(); [INFO] [stdout] ... | [INFO] [stdout] 315 | | self.set_keys()?; [INFO] [stdout] 316 | | } [INFO] [stdout] | |_________- any code following this expression is unreachable [INFO] [stdout] 317 | [INFO] [stdout] 318 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `gfx` and `keypad` are never read [INFO] [stdout] --> src/cpu.rs:62:5 [INFO] [stdout] | [INFO] [stdout] 30 | pub struct Chip8 { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 62 | gfx : [u8; GFX_MEMORY_MAX], [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 86 | keypad : [u8;KEYPAD_MAX] [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `gfx` and `keypad` are never read [INFO] [stdout] --> src/cpu.rs:62:5 [INFO] [stdout] | [INFO] [stdout] 30 | pub struct Chip8 { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 62 | gfx : [u8; GFX_MEMORY_MAX], [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 86 | keypad : [u8;KEYPAD_MAX] [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:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | emulator.boot("placeholderfileame.rom"); [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] 14 | let _ = emulator.boot("placeholderfileame.rom"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | emulator.run(); [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] 15 | let _ = emulator.run(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `V` should have a snake case name [INFO] [stdout] --> src/cpu.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | V: [u8; REGISTERS_MAX], [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | emulator.boot("placeholderfileame.rom"); [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] 14 | let _ = emulator.boot("placeholderfileame.rom"); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:15:5 [INFO] [stdout] | [INFO] [stdout] 15 | emulator.run(); [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] 15 | let _ = emulator.run(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: structure field `V` should have a snake case name [INFO] [stdout] --> src/cpu.rs:48:5 [INFO] [stdout] | [INFO] [stdout] 48 | V: [u8; REGISTERS_MAX], [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.94s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.13.11, syn v0.14.2 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 3` [INFO] running `Command { std: "docker" "inspect" "3a1e46ac8eda33d07c176fe787509e348d039871f70ca4ae9f77313f8ca65e3e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3a1e46ac8eda33d07c176fe787509e348d039871f70ca4ae9f77313f8ca65e3e", kill_on_drop: false }` [INFO] [stdout] 3a1e46ac8eda33d07c176fe787509e348d039871f70ca4ae9f77313f8ca65e3e