[INFO] cloning repository https://github.com/gabriele-0201/kab
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gabriele-0201/kab" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgabriele-0201%2Fkab", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgabriele-0201%2Fkab'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c36aa3ce98bba1a16faddf1b12796556d904643d
[INFO] testing gabriele-0201/kab against 1.99.0-beta.8 for beta-1.100-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgabriele-0201%2Fkab" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-1-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/gabriele-0201/kab
[INFO] finished tweaking git repo https://github.com/gabriele-0201/kab
[INFO] tweaked toml for git repo https://github.com/gabriele-0201/kab written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/gabriele-0201/kab on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/gabriele-0201/kab 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] cb0a75832e2dd10131c735baf17d36bb3391799cfd638585d7412e9639ee86a6
[INFO] running `Command { std: "docker" "start" "cb0a75832e2dd10131c735baf17d36bb3391799cfd638585d7412e9639ee86a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb0a75832e2dd10131c735baf17d36bb3391799cfd638585d7412e9639ee86a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cb0a75832e2dd10131c735baf17d36bb3391799cfd638585d7412e9639ee86a6" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb0a75832e2dd10131c735baf17d36bb3391799cfd638585d7412e9639ee86a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "cb0a75832e2dd10131c735baf17d36bb3391799cfd638585d7412e9639ee86a6" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling kernel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/kernel.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(alloc_error_handler)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/gdt.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | extern {
[INFO] [stdout]   | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]  --> src/interrupts/idt.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | extern {
[INFO] [stdout]   | ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::heap_allocator::*`
[INFO] [stdout]  --> src/memory_manager/global_allocator.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use super::heap_allocator::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `GlobalAlloc` and `Layout`
[INFO] [stdout]  --> src/memory_manager/global_allocator.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 | use core::alloc::{GlobalAlloc, Layout};
[INFO] [stdout]   |                   ^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Allocator`
[INFO] [stdout]   --> src/memory_manager/mod.rs:13:23
[INFO] [stdout]    |
[INFO] [stdout] 13 | use frame_allocator::{Allocator, Frame, FrameAllocator};
[INFO] [stdout]    |                       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `pointer_byte_offsets` has been stable since 1.75.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/kernel.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(pointer_byte_offsets)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `idt`
[INFO] [stdout]   --> src/interrupts/interrupt_manager.rs:16:34
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub fn handle_keyboard_interrupt(idt: &IDT, esp: u32) -> u32 {
[INFO] [stdout]    |                                  ^^^ help: if this is intentional, prefix it with an underscore: `_idt`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `command_port`
[INFO] [stdout]   --> src/interrupts/interrupt_manager.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let command_port = Port8Bit::new(0x64);
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command_port`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `padding`
[INFO] [stdout]    --> src/memory_manager/heap_allocator.rs:260:13
[INFO] [stdout]     |
[INFO] [stdout] 260 |         let padding = self.allocated_space as usize
[INFO] [stdout]     |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_padding`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/memory_manager/paging.rs:145:39
[INFO] [stdout]     |
[INFO] [stdout] 145 |     pub fn free_page_table(&mut self, index: usize) {
[INFO] [stdout]     |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/memory_manager/mod.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |         let mut page_directory = PageDirectory::new(&mut frame_allocator);
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kernel_start_frame`
[INFO] [stdout]   --> src/memory_manager/mod.rs:50:13
[INFO] [stdout]    |
[INFO] [stdout] 50 |         let kernel_start_frame = kernel_base / FRAME_SIZE;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kernel_start_frame`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new_pd`
[INFO] [stdout]    --> src/memory_manager/mod.rs:135:45
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn switch_page_directory(&mut self, new_pd: *mut PageDirectory) {
[INFO] [stdout]     |                                             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_new_pd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stack_kernel_top`
[INFO] [stdout]   --> src/kernel.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     stack_kernel_top: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stack_kernel_top`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kernel` (lib) due to 1 previous error; 14 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "cb0a75832e2dd10131c735baf17d36bb3391799cfd638585d7412e9639ee86a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb0a75832e2dd10131c735baf17d36bb3391799cfd638585d7412e9639ee86a6", kill_on_drop: false }`
[INFO] [stdout] cb0a75832e2dd10131c735baf17d36bb3391799cfd638585d7412e9639ee86a6
