[INFO] cloning repository https://github.com/MayNc10/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/MayNc10/rust-os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMayNc10%2Frust-os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMayNc10%2Frust-os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 17d190c09641e218995f679aad1ee47edbfc0007
[INFO] checking MayNc10/rust-os against try#bf5ff6675cf10ce009ac02007b064a7cfc4509ac for pr-140558
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMayNc10%2Frust-os" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MayNc10/rust-os on toolchain bf5ff6675cf10ce009ac02007b064a7cfc4509ac
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-6-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/MayNc10/rust-os
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/MayNc10/rust-os
[INFO] tweaked toml for git repo https://github.com/MayNc10/rust-os written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/MayNc10/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" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pic8259 v0.10.1
[INFO] [stderr]   Downloaded linked_list_allocator v0.9.0
[INFO] [stderr]   Downloaded uart_16550 v0.2.14
[INFO] [stderr]   Downloaded x86_64 v0.14.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8e2c99ba8aaf2c55eb3a411c753b5cf969975c861698c3d30a9ecef5e4b39e7
[INFO] running `Command { std: "docker" "start" "-a" "b8e2c99ba8aaf2c55eb3a411c753b5cf969975c861698c3d30a9ecef5e4b39e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8e2c99ba8aaf2c55eb3a411c753b5cf969975c861698c3d30a9ecef5e4b39e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8e2c99ba8aaf2c55eb3a411c753b5cf969975c861698c3d30a9ecef5e4b39e7", kill_on_drop: false }`
[INFO] [stdout] b8e2c99ba8aaf2c55eb3a411c753b5cf969975c861698c3d30a9ecef5e4b39e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+bf5ff6675cf10ce009ac02007b064a7cfc4509ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f32198065f1dfdec27ab7b01a6238b1796d06d81460e7532759f2a8fcda3912a
[INFO] running `Command { std: "docker" "start" "-a" "f32198065f1dfdec27ab7b01a6238b1796d06d81460e7532759f2a8fcda3912a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling x86_64 v0.14.7
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]     Checking volatile v0.4.4
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling bootloader v0.9.23
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]     Checking conquer-util v0.2.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking pc-keyboard v0.5.1
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking conquer-once v0.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]     Checking spinning_top v0.2.4
[INFO] [stderr]     Checking linked_list_allocator v0.9.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking uart_16550 v0.2.14
[INFO] [stderr]     Checking pic8259 v0.10.1
[INFO] [stderr]     Checking rust_os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `PortGeneric` and `ReadWriteAccess`
[INFO] [stdout]  --> src/disk/pio.rs:7:40
[INFO] [stdout]   |
[INFO] [stdout] 7 | use x86_64::instructions::port::{Port, PortGeneric, ReadWriteAccess};
[INFO] [stdout]   |                                        ^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `print`
[INFO] [stdout]  --> src/interrupts.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{gdt, hlt_loop, print, println, time::TIMER};
[INFO] [stdout]   |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `PortGeneric` and `ReadWriteAccess`
[INFO] [stdout]  --> src/disk/pio.rs:7:40
[INFO] [stdout]   |
[INFO] [stdout] 7 | use x86_64::instructions::port::{Port, PortGeneric, ReadWriteAccess};
[INFO] [stdout]   |                                        ^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `print`
[INFO] [stdout]  --> src/interrupts.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{gdt, hlt_loop, print, println, time::TIMER};
[INFO] [stdout]   |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BUFFER_HEIGHT` and `Color`
[INFO] [stdout]  --> src/task/cli.rs:4:50
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::{print, println, vga_buffer::{WRITER, Color, COLOR_LIST, ColorCode, BUFFER_HEIGHT, COLOR_NAME_LIST, BUFFER_WIDTH}, disk::pio::...
[INFO] [stdout]   |                                                  ^^^^^                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `conquer_once::spin::OnceCell`
[INFO] [stdout]  --> src/task/cli.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use conquer_once::spin::OnceCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Stream` and `task::AtomicWaker`
[INFO] [stdout]   --> src/task/cli.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |     stream::{Stream, StreamExt},
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 11 |     task::AtomicWaker,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BUFFER_HEIGHT` and `Color`
[INFO] [stdout]  --> src/task/cli.rs:4:50
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::{print, println, vga_buffer::{WRITER, Color, COLOR_LIST, ColorCode, BUFFER_HEIGHT, COLOR_NAME_LIST, BUFFER_WIDTH}, disk::pio::...
[INFO] [stdout]   |                                                  ^^^^^                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `conquer_once::spin::OnceCell`
[INFO] [stdout]  --> src/task/cli.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use conquer_once::spin::OnceCell;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Stream` and `task::AtomicWaker`
[INFO] [stdout]   --> src/task/cli.rs:10:14
[INFO] [stdout]    |
[INFO] [stdout] 10 |     stream::{Stream, StreamExt},
[INFO] [stdout]    |              ^^^^^^
[INFO] [stdout] 11 |     task::AtomicWaker,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[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: the feature `const_mut_refs` has been stable since 1.83.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(const_mut_refs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_mut_refs` has been stable since 1.83.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(const_mut_refs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Write`
[INFO] [stdout]   --> src/lib.rs:13:30
[INFO] [stdout]    |
[INFO] [stdout] 13 | use core::{panic::PanicInfo, fmt::Write};
[INFO] [stdout]    |                              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/vga_buffer.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::fmt::{self, Write};
[INFO] [stdout]   |                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/disk/pio.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Write`
[INFO] [stdout]   --> src/lib.rs:13:30
[INFO] [stdout]    |
[INFO] [stdout] 13 | use core::{panic::PanicInfo, fmt::Write};
[INFO] [stdout]    |                              ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/vga_buffer.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::fmt::{self, Write};
[INFO] [stdout]   |                       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/disk/pio.rs:287:9
[INFO] [stdout]     |
[INFO] [stdout] 287 |         unsafe {
[INFO] [stdout]     |         ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]    --> src/vga_buffer.rs:229:13
[INFO] [stdout]     |
[INFO] [stdout] 229 |         let start = self.cmd_start;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_os` (lib test) due to 2 previous errors; 10 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `start`
[INFO] [stdout]    --> src/vga_buffer.rs:229:13
[INFO] [stdout]     |
[INFO] [stdout] 229 |         let start = self.cmd_start;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_start`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `general_protection_handler` is never used
[INFO] [stdout]    --> src/interrupts.rs:106:27
[INFO] [stdout]     |
[INFO] [stdout] 106 | extern "x86-interrupt" fn general_protection_handler(stack_frame: InterruptStackFrame,
[INFO] [stdout]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]   --> src/gdt.rs:16:59
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let stack_start = VirtAddr::from_ptr(unsafe { &STACK });
[INFO] [stdout]    |                                                           ^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` on by default
[INFO] [stdout] help: use `&raw const` instead to create a raw pointer
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let stack_start = VirtAddr::from_ptr(unsafe { &raw const STACK });
[INFO] [stdout]    |                                                            +++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f32198065f1dfdec27ab7b01a6238b1796d06d81460e7532759f2a8fcda3912a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f32198065f1dfdec27ab7b01a6238b1796d06d81460e7532759f2a8fcda3912a", kill_on_drop: false }`
[INFO] [stdout] f32198065f1dfdec27ab7b01a6238b1796d06d81460e7532759f2a8fcda3912a
