[INFO] cloning repository https://github.com/jonchisko/chip8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jonchisko/chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonchisko%2Fchip8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonchisko%2Fchip8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 99c7631fae56dc9ed586ec61045487d01ae613bf
[INFO] checking jonchisko/chip8 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonchisko%2Fchip8" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jonchisko/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/jonchisko/chip8
[INFO] finished tweaking git repo https://github.com/jonchisko/chip8
[INFO] tweaked toml for git repo https://github.com/jonchisko/chip8 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jonchisko/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 console_engine v2.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] de0ae59183172d16b9616b6e16290cd6e9006486ff22191ead9987f564059306
[INFO] running `Command { std: "docker" "start" "-a" "de0ae59183172d16b9616b6e16290cd6e9006486ff22191ead9987f564059306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de0ae59183172d16b9616b6e16290cd6e9006486ff22191ead9987f564059306", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de0ae59183172d16b9616b6e16290cd6e9006486ff22191ead9987f564059306", kill_on_drop: false }`
[INFO] [stdout] de0ae59183172d16b9616b6e16290cd6e9006486ff22191ead9987f564059306
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2e215d92ffd2a9a23a31047330267527d8b5ab54bd531c8c7359825c5afac749
[INFO] running `Command { std: "docker" "start" "-a" "2e215d92ffd2a9a23a31047330267527d8b5ab54bd531c8c7359825c5afac749", kill_on_drop: false }`
[INFO] [stderr]    Compiling signal-hook v0.3.13
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking mio v0.7.14
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking signal-hook-mio v0.2.1
[INFO] [stderr]     Checking crossterm v0.22.1
[INFO] [stderr]     Checking console_engine v2.2.0
[INFO] [stderr]     Checking chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `rand` is imported redundantly
[INFO] [stdout]  --> src/cpu/instructions.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{self, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` 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 `rand` is imported redundantly
[INFO] [stdout]  --> src/cpu/instructions.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::{self, Rng};
[INFO] [stdout]   |            ^^^^ the item `rand` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clear_00E0` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn clear_00E0(_cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^ help: convert the identifier to snake case: `clear_00_e0`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `return_00EE` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:112:4
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn return_00EE(_cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^^ help: convert the identifier to snake case: `return_00_ee`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shiftleft_8xyE` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:258:4
[INFO] [stdout]     |
[INFO] [stdout] 258 | fn shiftleft_8xyE(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `shiftleft_8xy_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `skip_if_key_Ex9E` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:308:4
[INFO] [stdout]     |
[INFO] [stdout] 308 | fn skip_if_key_Ex9E(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `skip_if_key_ex9_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `skip_ifn_key_ExA1` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:317:4
[INFO] [stdout]     |
[INFO] [stdout] 317 | fn skip_ifn_key_ExA1(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `skip_ifn_key_ex_a1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_Fx07` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:326:4
[INFO] [stdout]     |
[INFO] [stdout] 326 | fn set_Fx07(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `set_fx07`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `store_key_Fx0A` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:331:4
[INFO] [stdout]     |
[INFO] [stdout] 331 | fn store_key_Fx0A(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `store_key_fx0_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_Fx15` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:347:4
[INFO] [stdout]     |
[INFO] [stdout] 347 | fn set_Fx15(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `set_fx15`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_Fx18` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:352:4
[INFO] [stdout]     |
[INFO] [stdout] 352 | fn set_Fx18(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `set_fx18`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_Fx1E` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:357:4
[INFO] [stdout]     |
[INFO] [stdout] 357 | fn set_Fx1E(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^ help: convert the identifier to snake case: `set_fx1_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_digit_Fx29` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:362:4
[INFO] [stdout]     |
[INFO] [stdout] 362 | fn get_digit_Fx29(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `get_digit_fx29`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decimal_Fx33` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:368:4
[INFO] [stdout]     |
[INFO] [stdout] 368 | fn decimal_Fx33(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `decimal_fx33`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `store_Fx55` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:379:4
[INFO] [stdout]     |
[INFO] [stdout] 379 | fn store_Fx55(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `store_fx55`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_Fx65` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:386:4
[INFO] [stdout]     |
[INFO] [stdout] 386 | fn read_Fx65(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `read_fx65`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `draw_debug` is never used
[INFO] [stdout]   --> src/main.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn draw_debug(eng: &mut ConsoleEngine) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clear_00E0` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:106:4
[INFO] [stdout]     |
[INFO] [stdout] 106 | fn clear_00E0(_cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^ help: convert the identifier to snake case: `clear_00_e0`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `return_00EE` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:112:4
[INFO] [stdout]     |
[INFO] [stdout] 112 | fn return_00EE(_cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^^ help: convert the identifier to snake case: `return_00_ee`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shiftleft_8xyE` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:258:4
[INFO] [stdout]     |
[INFO] [stdout] 258 | fn shiftleft_8xyE(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `shiftleft_8xy_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `skip_if_key_Ex9E` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:308:4
[INFO] [stdout]     |
[INFO] [stdout] 308 | fn skip_if_key_Ex9E(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `skip_if_key_ex9_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `skip_ifn_key_ExA1` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:317:4
[INFO] [stdout]     |
[INFO] [stdout] 317 | fn skip_ifn_key_ExA1(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^ help: convert the identifier to snake case: `skip_ifn_key_ex_a1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_Fx07` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:326:4
[INFO] [stdout]     |
[INFO] [stdout] 326 | fn set_Fx07(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `set_fx07`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `store_key_Fx0A` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:331:4
[INFO] [stdout]     |
[INFO] [stdout] 331 | fn store_key_Fx0A(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `store_key_fx0_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_Fx15` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:347:4
[INFO] [stdout]     |
[INFO] [stdout] 347 | fn set_Fx15(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `set_fx15`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_Fx18` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:352:4
[INFO] [stdout]     |
[INFO] [stdout] 352 | fn set_Fx18(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `set_fx18`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `set_Fx1E` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:357:4
[INFO] [stdout]     |
[INFO] [stdout] 357 | fn set_Fx1E(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^ help: convert the identifier to snake case: `set_fx1_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_digit_Fx29` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:362:4
[INFO] [stdout]     |
[INFO] [stdout] 362 | fn get_digit_Fx29(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `get_digit_fx29`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `decimal_Fx33` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:368:4
[INFO] [stdout]     |
[INFO] [stdout] 368 | fn decimal_Fx33(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `decimal_fx33`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `store_Fx55` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:379:4
[INFO] [stdout]     |
[INFO] [stdout] 379 | fn store_Fx55(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `store_fx55`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_Fx65` should have a snake case name
[INFO] [stdout]    --> src/cpu/instructions.rs:386:4
[INFO] [stdout]     |
[INFO] [stdout] 386 | fn read_Fx65(cmd: u16, cpu: &mut Cpu) {
[INFO] [stdout]     |    ^^^^^^^^^ help: convert the identifier to snake case (notice the capitalization): `read_fx65`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `draw_debug` is never used
[INFO] [stdout]   --> src/main.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn draw_debug(eng: &mut ConsoleEngine) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "2e215d92ffd2a9a23a31047330267527d8b5ab54bd531c8c7359825c5afac749", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e215d92ffd2a9a23a31047330267527d8b5ab54bd531c8c7359825c5afac749", kill_on_drop: false }`
[INFO] [stdout] 2e215d92ffd2a9a23a31047330267527d8b5ab54bd531c8c7359825c5afac749