[INFO] cloning repository https://github.com/tiagodeliberali/chip8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tiagodeliberali/chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiagodeliberali%2Fchip8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiagodeliberali%2Fchip8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 92a713bf23e3549a3c8c210d94f9d999f97bb2eb
[INFO] checking tiagodeliberali/chip8 against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiagodeliberali%2Fchip8" "/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/tiagodeliberali/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/tiagodeliberali/chip8
[INFO] finished tweaking git repo https://github.com/tiagodeliberali/chip8
[INFO] tweaked toml for git repo https://github.com/tiagodeliberali/chip8 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/tiagodeliberali/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]  Downloading crates ...
[INFO] [stderr]   Downloaded tui v0.9.1
[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] 07f26af763b2efd467e94ca86507e71980ea758c402761fff8b44005ad06f1c7
[INFO] running `Command { std: "docker" "start" "-a" "07f26af763b2efd467e94ca86507e71980ea758c402761fff8b44005ad06f1c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "07f26af763b2efd467e94ca86507e71980ea758c402761fff8b44005ad06f1c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07f26af763b2efd467e94ca86507e71980ea758c402761fff8b44005ad06f1c7", kill_on_drop: false }`
[INFO] [stdout] 07f26af763b2efd467e94ca86507e71980ea758c402761fff8b44005ad06f1c7
[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] 2e59e2de3905e70dffb3e93ae902ae51561d657a89375e2d9b68df9cac5a7365
[INFO] running `Command { std: "docker" "start" "-a" "2e59e2de3905e70dffb3e93ae902ae51561d657a89375e2d9b68df9cac5a7365", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking tui v0.9.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `input_handle` and `tick_handle` are never read
[INFO] [stdout]   --> src/utils.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Events {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 22 |     rx: mpsc::Receiver<Event<Key>>,
[INFO] [stdout] 23 |     input_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 24 |     ignore_exit_key: Arc<AtomicBool>,
[INFO] [stdout] 25 |     tick_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `input_handle` and `tick_handle` are never read
[INFO] [stdout]   --> src/utils.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Events {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 22 |     rx: mpsc::Receiver<Event<Key>>,
[INFO] [stdout] 23 |     input_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 24 |     ignore_exit_key: Arc<AtomicBool>,
[INFO] [stdout] 25 |     tick_handle: thread::JoinHandle<()>,
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.25s
[INFO] running `Command { std: "docker" "inspect" "2e59e2de3905e70dffb3e93ae902ae51561d657a89375e2d9b68df9cac5a7365", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e59e2de3905e70dffb3e93ae902ae51561d657a89375e2d9b68df9cac5a7365", kill_on_drop: false }`
[INFO] [stdout] 2e59e2de3905e70dffb3e93ae902ae51561d657a89375e2d9b68df9cac5a7365
[INFO] checking tiagodeliberali/chip8 against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftiagodeliberali%2Fchip8" "/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/tiagodeliberali/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/tiagodeliberali/chip8
[INFO] finished tweaking git repo https://github.com/tiagodeliberali/chip8
[INFO] tweaked toml for git repo https://github.com/tiagodeliberali/chip8 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/tiagodeliberali/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] c3d6bb0b2808fea8e734264cdbb9dea6a796a70b532a3db7ba66109cf746c607
[INFO] running `Command { std: "docker" "start" "-a" "c3d6bb0b2808fea8e734264cdbb9dea6a796a70b532a3db7ba66109cf746c607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3d6bb0b2808fea8e734264cdbb9dea6a796a70b532a3db7ba66109cf746c607", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3d6bb0b2808fea8e734264cdbb9dea6a796a70b532a3db7ba66109cf746c607", kill_on_drop: false }`
[INFO] [stdout] c3d6bb0b2808fea8e734264cdbb9dea6a796a70b532a3db7ba66109cf746c607
[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] fd1063f0322ee8204901e20d21e16da952af8405466920234a41c9437bd52ef6
[INFO] running `Command { std: "docker" "start" "-a" "fd1063f0322ee8204901e20d21e16da952af8405466920234a41c9437bd52ef6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]     Checking unicode-segmentation v1.6.0
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking tui v0.9.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use rand::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `input_handle` and `tick_handle` are never read
[INFO] [stdout]   --> src/utils.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Events {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 22 |     rx: mpsc::Receiver<Event<Key>>,
[INFO] [stdout] 23 |     input_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 24 |     ignore_exit_key: Arc<AtomicBool>,
[INFO] [stdout] 25 |     tick_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `input_handle` and `tick_handle` are never read
[INFO] [stdout]   --> src/utils.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Events {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 22 |     rx: mpsc::Receiver<Event<Key>>,
[INFO] [stdout] 23 |     input_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 24 |     ignore_exit_key: Arc<AtomicBool>,
[INFO] [stdout] 25 |     tick_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.70s
[INFO] running `Command { std: "docker" "inspect" "fd1063f0322ee8204901e20d21e16da952af8405466920234a41c9437bd52ef6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd1063f0322ee8204901e20d21e16da952af8405466920234a41c9437bd52ef6", kill_on_drop: false }`
[INFO] [stdout] fd1063f0322ee8204901e20d21e16da952af8405466920234a41c9437bd52ef6