[INFO] fetching crate monotron-app 0.5.0... [INFO] checking monotron-app-0.5.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate monotron-app 0.5.0 into /workspace/builds/worker-6-tc1/source [INFO] validating manifest of crates.io crate monotron-app 0.5.0 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 crates.io crate monotron-app 0.5.0 [INFO] finished tweaking crates.io crate monotron-app 0.5.0 [INFO] tweaked toml for crates.io crate monotron-app 0.5.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 32 packages [INFO] [stderr] Adding autocfg v0.1.8 (latest: v1.2.0) [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding cfg-if v0.1.10 (latest: v1.0.0) [INFO] [stderr] Adding cloudabi v0.0.3 (latest: v0.1.0) [INFO] [stderr] Adding num v0.1.42 (latest: v0.4.1) [INFO] [stderr] Adding rand v0.6.5 (latest: v0.8.5) [INFO] [stderr] Adding rand_chacha v0.1.1 (latest: v0.3.1) [INFO] [stderr] Adding rand_core v0.3.1 (latest: v0.6.4) [INFO] [stderr] Adding rand_core v0.4.2 (latest: v0.6.4) [INFO] [stderr] Adding rand_hc v0.1.0 (latest: v0.3.2) [INFO] [stderr] Adding rand_isaac v0.1.1 (latest: v0.3.0) [INFO] [stderr] Adding rand_jitter v0.1.4 (latest: v0.4.0) [INFO] [stderr] Adding rand_os v0.1.3 (latest: v0.2.2) [INFO] [stderr] Adding rand_pcg v0.1.2 (latest: v0.3.1) [INFO] [stderr] Adding rand_xorshift v0.1.1 (latest: v0.3.0) [INFO] [stderr] Adding rdrand v0.4.0 (latest: v0.8.3) [INFO] [stderr] Adding sdl2 v0.32.2 (latest: v0.36.0) [INFO] [stderr] Adding sdl2-sys v0.32.6 (latest: v0.36.0) [INFO] [stderr] Adding vga-framebuffer v0.7.5 (latest: v0.9.0) [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 const-ft v0.1.2 [INFO] [stderr] Downloaded sdl2 v0.32.2 [INFO] [stderr] Downloaded sdl2-sys v0.32.6 [INFO] [stderr] Downloaded vga-framebuffer v0.7.5 [INFO] [stderr] Downloaded console-traits v0.3.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] fadfc2a89aa2619ef41649d012cc5f4dc1746d52c597357d91f90f8174549638 [INFO] running `Command { std: "docker" "start" "-a" "fadfc2a89aa2619ef41649d012cc5f4dc1746d52c597357d91f90f8174549638", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fadfc2a89aa2619ef41649d012cc5f4dc1746d52c597357d91f90f8174549638", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fadfc2a89aa2619ef41649d012cc5f4dc1746d52c597357d91f90f8174549638", kill_on_drop: false }` [INFO] [stdout] fadfc2a89aa2619ef41649d012cc5f4dc1746d52c597357d91f90f8174549638 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] a1996d8644a1ec1f9d5e8a0837fcae5414f1b046a77ced876616a3eea4dba98e [INFO] running `Command { std: "docker" "start" "-a" "a1996d8644a1ec1f9d5e8a0837fcae5414f1b046a77ced876616a3eea4dba98e", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Compiling sdl2 v0.32.2 [INFO] [stderr] Compiling monotron-app v0.5.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking console-traits v0.3.0 [INFO] [stderr] Checking const-ft v0.1.2 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling sdl2-sys v0.32.6 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking vga-framebuffer v0.7.5 [INFO] [stderr] Checking num-iter v0.1.44 [INFO] [stderr] Checking num v0.1.42 [INFO] [stdout] warning: the item `sdl2` is imported redundantly [INFO] [stdout] --> src/sdl_window.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use sdl2; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:43:1 [INFO] [stdout] | [INFO] [stdout] 43 | 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/sdl_window.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use sdl2; [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:43:1 [INFO] [stdout] | [INFO] [stdout] 43 | 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 `vga_framebuffer` is imported redundantly [INFO] [stdout] --> src/sdl_window.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use vga_framebuffer; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:46:1 [INFO] [stdout] | [INFO] [stdout] 46 | extern crate vga_framebuffer; [INFO] [stdout] | ----------------------------- the item `vga_framebuffer` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `vga_framebuffer` is imported redundantly [INFO] [stdout] --> src/sdl_window.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use vga_framebuffer; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] ::: src/lib.rs:46:1 [INFO] [stdout] | [INFO] [stdout] 46 | extern crate vga_framebuffer; [INFO] [stdout] | ----------------------------- the item `vga_framebuffer` is already imported here [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `extern` fn uses type `(u16, u16)`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:723:32 [INFO] [stdout] | [INFO] [stdout] 723 | pub extern "C" fn getsize() -> (u16, u16) { [INFO] [stdout] | ^^^^^^^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = help: consider using a struct instead [INFO] [stdout] = note: tuples have unspecified layout [INFO] [stdout] = note: `#[warn(improper_ctypes_definitions)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `extern` fn uses type `(u16, u16)`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:723:32 [INFO] [stdout] | [INFO] [stdout] 723 | pub extern "C" fn getsize() -> (u16, u16) { [INFO] [stdout] | ^^^^^^^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = help: consider using a struct instead [INFO] [stdout] = note: tuples have unspecified layout [INFO] [stdout] = note: `#[warn(improper_ctypes_definitions)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `extern` fn uses type `JoystickState`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:817:37 [INFO] [stdout] | [INFO] [stdout] 817 | pub extern "C" fn get_joystick() -> JoystickState { [INFO] [stdout] | ^^^^^^^^^^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct [INFO] [stdout] = note: this struct has unspecified layout [INFO] [stdout] note: the type is defined here [INFO] [stdout] --> src/lib.rs:99:1 [INFO] [stdout] | [INFO] [stdout] 99 | pub struct JoystickState(u8); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `extern` fn uses type `JoystickState`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:817:37 [INFO] [stdout] | [INFO] [stdout] 817 | pub extern "C" fn get_joystick() -> JoystickState { [INFO] [stdout] | ^^^^^^^^^^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct [INFO] [stdout] = note: this struct has unspecified layout [INFO] [stdout] note: the type is defined here [INFO] [stdout] --> src/lib.rs:99:1 [INFO] [stdout] | [INFO] [stdout] 99 | pub struct JoystickState(u8); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.63s [INFO] running `Command { std: "docker" "inspect" "a1996d8644a1ec1f9d5e8a0837fcae5414f1b046a77ced876616a3eea4dba98e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a1996d8644a1ec1f9d5e8a0837fcae5414f1b046a77ced876616a3eea4dba98e", kill_on_drop: false }` [INFO] [stdout] a1996d8644a1ec1f9d5e8a0837fcae5414f1b046a77ced876616a3eea4dba98e