[INFO] cloning repository https://github.com/kennethjang34/rust_os [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kennethjang34/rust_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennethjang34%2Frust_os", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennethjang34%2Frust_os'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1e6b1dfc1c1e87ed6ff6f41ea0bd5525db331e67 [INFO] checking kennethjang34/rust_os against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkennethjang34%2Frust_os" "/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/kennethjang34/rust_os on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml [INFO] started tweaking git repo https://github.com/kennethjang34/rust_os [INFO] removed 0 missing tests [INFO] finished tweaking git repo https://github.com/kennethjang34/rust_os [INFO] tweaked toml for git repo https://github.com/kennethjang34/rust_os written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/kennethjang34/rust_os 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: dependency (futures-util) specified without providing a local path, Git repository, version, or workspace dependency to use. This will be considered an error in future versions [INFO] [stderr] warning: unused manifest key: dependencies.futures-util.verison [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded pic8259 v0.10.2 [INFO] [stderr] Downloaded linked_list_allocator v0.9.1 [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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b9457a3268ac51df71c9c25b8a5bb7a48a99c3d84d737eaec45812a1445b5d67 [INFO] running `Command { std: "docker" "start" "-a" "b9457a3268ac51df71c9c25b8a5bb7a48a99c3d84d737eaec45812a1445b5d67", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b9457a3268ac51df71c9c25b8a5bb7a48a99c3d84d737eaec45812a1445b5d67", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b9457a3268ac51df71c9c25b8a5bb7a48a99c3d84d737eaec45812a1445b5d67", kill_on_drop: false }` [INFO] [stdout] b9457a3268ac51df71c9c25b8a5bb7a48a99c3d84d737eaec45812a1445b5d67 [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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 95af41826779694a1b93217fc68eaaff572fbf3787f79a8b91b571f2dae7e9a3 [INFO] running `Command { std: "docker" "start" "-a" "95af41826779694a1b93217fc68eaaff572fbf3787f79a8b91b571f2dae7e9a3", kill_on_drop: false }` [INFO] [stderr] warning: dependency (futures-util) specified without providing a local path, Git repository, version, or workspace dependency to use. This will be considered an error in future versions [INFO] [stderr] warning: unused manifest key: dependencies.futures-util.verison [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling rustversion v1.0.11 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Compiling futures-task v0.3.26 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking volatile v0.4.5 [INFO] [stderr] Compiling futures-core v0.3.26 [INFO] [stderr] Checking bit_field v0.10.1 [INFO] [stderr] Compiling futures-util v0.3.26 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling bootloader v0.9.23 [INFO] [stderr] Checking spin v0.5.2 [INFO] [stderr] Checking pin-project-lite v0.2.9 [INFO] [stderr] Checking pin-utils v0.1.0 [INFO] [stderr] Checking conquer-util v0.2.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking volatile v0.2.7 [INFO] [stderr] Checking pc-keyboard v0.5.1 [INFO] [stderr] Compiling lock_api v0.4.9 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Checking conquer-once v0.2.1 [INFO] [stderr] Checking spinning_top v0.2.4 [INFO] [stderr] Checking linked_list_allocator v0.9.1 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking x86_64 v0.14.10 [INFO] [stderr] Checking pic8259 v0.10.2 [INFO] [stderr] Checking uart_16550 v0.2.18 [INFO] [stderr] Checking rust_os v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::print` [INFO] [stdout] --> src/interrupts.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::print; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::task::keyboard::add_scancode` [INFO] [stdout] --> src/interrupts.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use crate::task::keyboard::add_scancode; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `spin` is imported redundantly [INFO] [stdout] --> src/interrupts.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use spin; [INFO] [stdout] | ^^^^ the item `spin` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Mapper`, `Page` [INFO] [stdout] --> src/memory.rs:4:25 [INFO] [stdout] | [INFO] [stdout] 4 | FrameAllocator, Mapper, OffsetPageTable, Page, PageTable, PhysFrame, Size4KiB, [INFO] [stdout] | ^^^^^^ ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::println` [INFO] [stdout] --> src/allocator/linked_list.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::println; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `bump::BumpAllocator` [INFO] [stdout] --> src/allocator.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use bump::BumpAllocator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `linked_list::LinkedListAllocator` [INFO] [stdout] --> src/allocator.rs:52:5 [INFO] [stdout] | [INFO] [stdout] 52 | use linked_list::LinkedListAllocator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::print` [INFO] [stdout] --> src/interrupts.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::print; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::println` [INFO] [stdout] --> src/allocator.rs:54:5 [INFO] [stdout] | [INFO] [stdout] 54 | use crate::println; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::task::keyboard::add_scancode` [INFO] [stdout] --> src/interrupts.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use crate::task::keyboard::add_scancode; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `spin` is imported redundantly [INFO] [stdout] --> src/interrupts.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use spin; [INFO] [stdout] | ^^^^ the item `spin` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Mapper`, `Page` [INFO] [stdout] --> src/memory.rs:4:25 [INFO] [stdout] | [INFO] [stdout] 4 | FrameAllocator, Mapper, OffsetPageTable, Page, PageTable, PhysFrame, Size4KiB, [INFO] [stdout] | ^^^^^^ ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::println` [INFO] [stdout] --> src/allocator/linked_list.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::println; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `bump::BumpAllocator` [INFO] [stdout] --> src/allocator.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use bump::BumpAllocator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `linked_list::LinkedListAllocator` [INFO] [stdout] --> src/allocator.rs:52:5 [INFO] [stdout] | [INFO] [stdout] 52 | use linked_list::LinkedListAllocator; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::println` [INFO] [stdout] --> src/allocator.rs:54:5 [INFO] [stdout] | [INFO] [stdout] 54 | use crate::println; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: unwinding panics are not supported without std [INFO] [stdout] | [INFO] [stdout] = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding [INFO] [stdout] = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/gdt.rs:18:59 [INFO] [stdout] | [INFO] [stdout] 18 | let stack_start = VirtAddr::from_ptr(unsafe { &STACK }); [INFO] [stdout] | ^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 18 | let stack_start = VirtAddr::from_ptr(unsafe { addr_of!(STACK) }); [INFO] [stdout] | ~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/gdt.rs:18:59 [INFO] [stdout] | [INFO] [stdout] 18 | let stack_start = VirtAddr::from_ptr(unsafe { &STACK }); [INFO] [stdout] | ^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 18 | let stack_start = VirtAddr::from_ptr(unsafe { addr_of!(STACK) }); [INFO] [stdout] | ~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `keyboard` [INFO] [stdout] --> src/interrupts.rs:54:13 [INFO] [stdout] | [INFO] [stdout] 54 | let mut keyboard = KEYBOARD.lock(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keyboard` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/interrupts.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | let mut keyboard = KEYBOARD.lock(); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `keyboard` [INFO] [stdout] --> src/interrupts.rs:54:13 [INFO] [stdout] | [INFO] [stdout] 54 | let mut keyboard = KEYBOARD.lock(); [INFO] [stdout] | ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_keyboard` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/interrupts.rs:54:9 [INFO] [stdout] | [INFO] [stdout] 54 | let mut keyboard = KEYBOARD.lock(); [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_os` (lib test) due to 2 previous errors; 11 warnings emitted [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "95af41826779694a1b93217fc68eaaff572fbf3787f79a8b91b571f2dae7e9a3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "95af41826779694a1b93217fc68eaaff572fbf3787f79a8b91b571f2dae7e9a3", kill_on_drop: false }` [INFO] [stdout] 95af41826779694a1b93217fc68eaaff572fbf3787f79a8b91b571f2dae7e9a3