[INFO] cloning repository https://github.com/Alexandre-Borghi/chip8
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Alexandre-Borghi/chip8" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexandre-Borghi%2Fchip8", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexandre-Borghi%2Fchip8'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 26763daf8acfe21d25310676b62f6681afbb46ca
[INFO] checking Alexandre-Borghi/chip8 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexandre-Borghi%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/Alexandre-Borghi/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/Alexandre-Borghi/chip8
[INFO] finished tweaking git repo https://github.com/Alexandre-Borghi/chip8
[INFO] tweaked toml for git repo https://github.com/Alexandre-Borghi/chip8 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Alexandre-Borghi/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]  Downloading crates ...
[INFO] [stderr]   Downloaded version-compare v0.1.0
[INFO] [stderr]   Downloaded sdl2 v0.35.2
[INFO] [stderr]   Downloaded sdl2-sys v0.35.2
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4646ff9a63816a6e9c1bec2f4156a48d938859425cc2f4bc4da7fbd9e7dcfe5e
[INFO] running `Command { std: "docker" "start" "-a" "4646ff9a63816a6e9c1bec2f4156a48d938859425cc2f4bc4da7fbd9e7dcfe5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4646ff9a63816a6e9c1bec2f4156a48d938859425cc2f4bc4da7fbd9e7dcfe5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4646ff9a63816a6e9c1bec2f4156a48d938859425cc2f4bc4da7fbd9e7dcfe5e", kill_on_drop: false }`
[INFO] [stdout] 4646ff9a63816a6e9c1bec2f4156a48d938859425cc2f4bc4da7fbd9e7dcfe5e
[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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34b532a8a48f123fd1b2068ed46ade5694c65a7c8a30236e3adfb7945c98024c
[INFO] running `Command { std: "docker" "start" "-a" "34b532a8a48f123fd1b2068ed46ade5694c65a7c8a30236e3adfb7945c98024c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking chip8 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `sdl2::sys::KeyCode`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use sdl2::sys::KeyCode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sdl2::sys::KeyCode`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use sdl2::sys::KeyCode;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/main.rs:692:9
[INFO] [stdout]     |
[INFO] [stdout] 691 |         todo!("Implement BCD");
[INFO] [stdout]     |         ---------------------- any code following this expression is unreachable
[INFO] [stdout] 692 |         self.pc += OP_LENGTH;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/main.rs:692:9
[INFO] [stdout]     |
[INFO] [stdout] 691 |         todo!("Implement BCD");
[INFO] [stdout]     |         ---------------------- any code following this expression is unreachable
[INFO] [stdout] 692 |         self.pc += OP_LENGTH;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vx`
[INFO] [stdout]    --> src/main.rs:690:13
[INFO] [stdout]     |
[INFO] [stdout] 690 |         let vx = (op & 0x0F00) >> 8;
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_vx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `vx`
[INFO] [stdout]    --> src/main.rs:690:13
[INFO] [stdout]     |
[INFO] [stdout] 690 |         let vx = (op & 0x0F00) >> 8;
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_vx`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exec_A` should have a snake case name
[INFO] [stdout]    --> src/main.rs:515:8
[INFO] [stdout]     |
[INFO] [stdout] 515 |     fn exec_A(&mut self, op: u16) {
[INFO] [stdout]     |        ^^^^^^ help: convert the identifier to snake case: `exec_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exec_B` should have a snake case name
[INFO] [stdout]    --> src/main.rs:523:8
[INFO] [stdout]     |
[INFO] [stdout] 523 |     fn exec_B(&mut self, op: u16) {
[INFO] [stdout]     |        ^^^^^^ help: convert the identifier to snake case: `exec_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exec_C` should have a snake case name
[INFO] [stdout]    --> src/main.rs:530:8
[INFO] [stdout]     |
[INFO] [stdout] 530 |     fn exec_C(&mut self, op: u16) {
[INFO] [stdout]     |        ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `exec_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exec_A` should have a snake case name
[INFO] [stdout]    --> src/main.rs:515:8
[INFO] [stdout]     |
[INFO] [stdout] 515 |     fn exec_A(&mut self, op: u16) {
[INFO] [stdout]     |        ^^^^^^ help: convert the identifier to snake case: `exec_a`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exec_D` should have a snake case name
[INFO] [stdout]    --> src/main.rs:539:8
[INFO] [stdout]     |
[INFO] [stdout] 539 |     fn exec_D(&mut self, op: u16) {
[INFO] [stdout]     |        ^^^^^^ help: convert the identifier to snake case: `exec_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exec_B` should have a snake case name
[INFO] [stdout]    --> src/main.rs:523:8
[INFO] [stdout]     |
[INFO] [stdout] 523 |     fn exec_B(&mut self, op: u16) {
[INFO] [stdout]     |        ^^^^^^ help: convert the identifier to snake case: `exec_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exec_C` should have a snake case name
[INFO] [stdout]    --> src/main.rs:530:8
[INFO] [stdout]     |
[INFO] [stdout] 530 |     fn exec_C(&mut self, op: u16) {
[INFO] [stdout]     |        ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `exec_c`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exec_D` should have a snake case name
[INFO] [stdout]    --> src/main.rs:539:8
[INFO] [stdout]     |
[INFO] [stdout] 539 |     fn exec_D(&mut self, op: u16) {
[INFO] [stdout]     |        ^^^^^^ help: convert the identifier to snake case: `exec_d`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exec_E` should have a snake case name
[INFO] [stdout]    --> src/main.rs:570:8
[INFO] [stdout]     |
[INFO] [stdout] 570 |     fn exec_E(&mut self, op: u16) {
[INFO] [stdout]     |        ^^^^^^ help: convert the identifier to snake case: `exec_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exec_F` should have a snake case name
[INFO] [stdout]    --> src/main.rs:608:8
[INFO] [stdout]     |
[INFO] [stdout] 608 |     fn exec_F(&mut self, op: u16) {
[INFO] [stdout]     |        ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `exec_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exec_E` should have a snake case name
[INFO] [stdout]    --> src/main.rs:570:8
[INFO] [stdout]     |
[INFO] [stdout] 570 |     fn exec_E(&mut self, op: u16) {
[INFO] [stdout]     |        ^^^^^^ help: convert the identifier to snake case: `exec_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `exec_F` should have a snake case name
[INFO] [stdout]    --> src/main.rs:608:8
[INFO] [stdout]     |
[INFO] [stdout] 608 |     fn exec_F(&mut self, op: u16) {
[INFO] [stdout]     |        ^^^^^^ help: convert the identifier to snake case (notice the capitalization): `exec_f`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.30s
[INFO] running `Command { std: "docker" "inspect" "34b532a8a48f123fd1b2068ed46ade5694c65a7c8a30236e3adfb7945c98024c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34b532a8a48f123fd1b2068ed46ade5694c65a7c8a30236e3adfb7945c98024c", kill_on_drop: false }`
[INFO] [stdout] 34b532a8a48f123fd1b2068ed46ade5694c65a7c8a30236e3adfb7945c98024c
[INFO] checking Alexandre-Borghi/chip8 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAlexandre-Borghi%2Fchip8" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Alexandre-Borghi/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/Alexandre-Borghi/chip8
[INFO] finished tweaking git repo https://github.com/Alexandre-Borghi/chip8
[INFO] tweaked toml for git repo https://github.com/Alexandre-Borghi/chip8 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Alexandre-Borghi/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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] c8e1bc3ca62fcbe174e110e28c42523d97cb4a13f77e2e09114cb189426bd172
[INFO] running `Command { std: "docker" "start" "-a" "c8e1bc3ca62fcbe174e110e28c42523d97cb4a13f77e2e09114cb189426bd172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8e1bc3ca62fcbe174e110e28c42523d97cb4a13f77e2e09114cb189426bd172", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8e1bc3ca62fcbe174e110e28c42523d97cb4a13f77e2e09114cb189426bd172", kill_on_drop: false }`
[INFO] [stdout] c8e1bc3ca62fcbe174e110e28c42523d97cb4a13f77e2e09114cb189426bd172
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 314b189ea0b3f786dfe2f3e3015f8ce0005ddca0973e466e5336f9df36134ed1
[INFO] running `Command { std: "docker" "start" "-a" "314b189ea0b3f786dfe2f3e3015f8ce0005ddca0973e466e5336f9df36134ed1", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling version-compare v0.1.0
[INFO] [stderr]    Compiling sdl2 v0.35.2
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling sdl2-sys v0.35.2
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[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/sdl2-0.35.2/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" "314b189ea0b3f786dfe2f3e3015f8ce0005ddca0973e466e5336f9df36134ed1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "314b189ea0b3f786dfe2f3e3015f8ce0005ddca0973e466e5336f9df36134ed1", kill_on_drop: false }`
[INFO] [stdout] 314b189ea0b3f786dfe2f3e3015f8ce0005ddca0973e466e5336f9df36134ed1