[INFO] cloning repository https://github.com/masonedmison/chip8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/masonedmison/chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasonedmison%2Fchip8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasonedmison%2Fchip8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 65237fbb28f1b5f14d076bff5e1b9306432580c0
[INFO] checking masonedmison/chip8 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasonedmison%2Fchip8" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/masonedmison/chip8 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/masonedmison/chip8
[INFO] finished tweaking git repo https://github.com/masonedmison/chip8
[INFO] tweaked toml for git repo https://github.com/masonedmison/chip8 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/masonedmison/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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unwrap v1.2.1
[INFO] [stderr]   Downloaded sdl2 v0.36.0
[INFO] [stderr]   Downloaded sdl2-sys v0.36.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bdfd3d0a7ff59e42f90df454dcd852a9d55e8be114f1c8dda802f850b746a6fe
[INFO] running `Command { std: "docker" "start" "-a" "bdfd3d0a7ff59e42f90df454dcd852a9d55e8be114f1c8dda802f850b746a6fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdfd3d0a7ff59e42f90df454dcd852a9d55e8be114f1c8dda802f850b746a6fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdfd3d0a7ff59e42f90df454dcd852a9d55e8be114f1c8dda802f850b746a6fe", kill_on_drop: false }`
[INFO] [stdout] bdfd3d0a7ff59e42f90df454dcd852a9d55e8be114f1c8dda802f850b746a6fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70e948947a63f17bedb2aae54c57d9092b8bbcdb1890b588c0a35fa8162d221a
[INFO] running `Command { std: "docker" "start" "-a" "70e948947a63f17bedb2aae54c57d9092b8bbcdb1890b588c0a35fa8162d221a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling sdl2 v0.36.0
[INFO] [stderr]     Checking unwrap v1.2.1
[INFO] [stderr]    Compiling sdl2-sys v0.36.0
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking chip-8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `sdl2` is imported redundantly
[INFO] [stdout]  --> src/input_driver.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use sdl2;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate sdl2;
[INFO] [stdout]   | ------------------ the item `sdl2` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `sdl2` is imported redundantly
[INFO] [stdout]  --> src/input_driver.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use sdl2;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | extern crate sdl2;
[INFO] [stdout]   | ------------------ the item `sdl2` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `event::Event`
[INFO] [stdout]    --> src/./interpreters_test.rs:262:20
[INFO] [stdout]     |
[INFO] [stdout] 262 |         use sdl2::{event::Event, keyboard::Keycode};
[INFO] [stdout]     |                    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `events` is never read
[INFO] [stdout]    --> src/./interpreters_test.rs:292:13
[INFO] [stdout]     |
[INFO] [stdout] 291 |         pub(crate) struct TestInput {
[INFO] [stdout]     |                           --------- field in this struct
[INFO] [stdout] 292 |             events: Vec<Keycode>,
[INFO] [stdout]     |             ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "70e948947a63f17bedb2aae54c57d9092b8bbcdb1890b588c0a35fa8162d221a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70e948947a63f17bedb2aae54c57d9092b8bbcdb1890b588c0a35fa8162d221a", kill_on_drop: false }`
[INFO] [stdout] 70e948947a63f17bedb2aae54c57d9092b8bbcdb1890b588c0a35fa8162d221a
[INFO] checking masonedmison/chip8 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmasonedmison%2Fchip8" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/masonedmison/chip8 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/masonedmison/chip8
[INFO] finished tweaking git repo https://github.com/masonedmison/chip8
[INFO] tweaked toml for git repo https://github.com/masonedmison/chip8 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/masonedmison/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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 581b20672cfff1459478f6f581343ad83c80f397608e46f2ccd54ba0da7ae52b
[INFO] running `Command { std: "docker" "start" "-a" "581b20672cfff1459478f6f581343ad83c80f397608e46f2ccd54ba0da7ae52b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "581b20672cfff1459478f6f581343ad83c80f397608e46f2ccd54ba0da7ae52b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "581b20672cfff1459478f6f581343ad83c80f397608e46f2ccd54ba0da7ae52b", kill_on_drop: false }`
[INFO] [stdout] 581b20672cfff1459478f6f581343ad83c80f397608e46f2ccd54ba0da7ae52b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c668082db519352a1961c5b3073725a8af79595e7d0eff1a785d50b79080461
[INFO] running `Command { std: "docker" "start" "-a" "7c668082db519352a1961c5b3073725a8af79595e7d0eff1a785d50b79080461", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling sdl2 v0.36.0
[INFO] [stderr]     Checking unwrap v1.2.1
[INFO] [stderr]    Compiling sdl2-sys v0.36.0
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/sdl2-0.36.0/src/sdl2/render.rs:233:13
[INFO] [stdout]     |
[INFO] [stdout] 233 |             panic!();
[INFO] [stdout]     |             ^^^^^^^^ cannot infer type
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `$crate::panic::panic_2015` which comes from the expansion of the macro `panic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sdl2` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "7c668082db519352a1961c5b3073725a8af79595e7d0eff1a785d50b79080461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c668082db519352a1961c5b3073725a8af79595e7d0eff1a785d50b79080461", kill_on_drop: false }`
[INFO] [stdout] 7c668082db519352a1961c5b3073725a8af79595e7d0eff1a785d50b79080461