[INFO] cloning repository https://github.com/NickWentworth/os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NickWentworth/os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNickWentworth%2Fos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNickWentworth%2Fos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dc67291fa37f15d42fcdae8f9fc98857765aacf4
[INFO] testing NickWentworth/os against master#198328ad7960b1bece0dc48496bff6c62dd5d339 for pr-149852
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNickWentworth%2Fos" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/NickWentworth/os
[INFO] finished tweaking git repo https://github.com/NickWentworth/os
[INFO] tweaked toml for git repo https://github.com/NickWentworth/os written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/NickWentworth/os on toolchain 198328ad7960b1bece0dc48496bff6c62dd5d339
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+198328ad7960b1bece0dc48496bff6c62dd5d339" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/NickWentworth/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" "+198328ad7960b1bece0dc48496bff6c62dd5d339" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+198328ad7960b1bece0dc48496bff6c62dd5d339" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47b8d5f240888b875aaa6c47a653ed067f3aaefae97757caa26b0b639d2a43b9
[INFO] running `Command { std: "docker" "start" "-a" "47b8d5f240888b875aaa6c47a653ed067f3aaefae97757caa26b0b639d2a43b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47b8d5f240888b875aaa6c47a653ed067f3aaefae97757caa26b0b639d2a43b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47b8d5f240888b875aaa6c47a653ed067f3aaefae97757caa26b0b639d2a43b9", kill_on_drop: false }`
[INFO] [stdout] 47b8d5f240888b875aaa6c47a653ed067f3aaefae97757caa26b0b639d2a43b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+198328ad7960b1bece0dc48496bff6c62dd5d339" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f265475e0f2e54e92a214bbcfd5be8356a7d8ebdbfd2fd871b769abd436a1d60
[INFO] running `Command { std: "docker" "start" "-a" "f265475e0f2e54e92a214bbcfd5be8356a7d8ebdbfd2fd871b769abd436a1d60", kill_on_drop: false }`
[INFO] [stderr]    Compiling os v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `generic_const_exprs` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(generic_const_exprs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: see issue #76560 <https://github.com/rust-lang/rust/issues/76560> for more information
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `println`
[INFO] [stdout]  --> src/allocator.rs:1:40
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{mem::addr::KernelVirtAddr, println};
[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 import: `crate::println`
[INFO] [stdout]  --> src/devices/raspi/videocore.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::println;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `framebuffer`
[INFO] [stdout]  --> src/graphics/framebuffer.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 |     graphics::{color::Color, framebuffer},
[INFO] [stdout]   |                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `resp_addr`
[INFO] [stdout]    --> src/devices/raspi/videocore.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |         let resp_addr = unsafe { Self::read_mailbox() };
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_resp_addr`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `resp_code`
[INFO] [stdout]    --> src/devices/raspi/videocore.rs:133:13
[INFO] [stdout]     |
[INFO] [stdout] 133 |         let resp_code = buf[1];
[INFO] [stdout]     |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_resp_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/main.rs:106:25
[INFO] [stdout]     |
[INFO] [stdout] 106 | struct TranslationTable([u64; 512]);
[INFO] [stdout]     |        ---------------- ^^^^^^^^^^
[INFO] [stdout]     |        |
[INFO] [stdout]     |        field in this struct
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `heap` is never read
[INFO] [stdout]  --> src/allocator.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct LinkedListAllocator {
[INFO] [stdout]   |            ------------------- field in this struct
[INFO] [stdout] 5 |     heap: &'static [u8],
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `receieve_char` is never used
[INFO] [stdout]   --> src/devices/generic/uart.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl UartController {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn receieve_char(&mut self) -> char {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `UART_DR_DATA` and `receieve_byte` are never used
[INFO] [stdout]    --> src/devices/generic/uart.rs:72:11
[INFO] [stdout]     |
[INFO] [stdout]  69 | impl UartPl011 {
[INFO] [stdout]     | -------------- associated items in this implementation
[INFO] [stdout] ...
[INFO] [stdout]  72 |     const UART_DR_DATA: u8 = 0; // Receive or transmit char
[INFO] [stdout]     |           ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 121 |     fn receieve_byte(&self) -> u8 {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `set_display_dimensions` is never used
[INFO] [stdout]   --> src/devices/raspi/videocore.rs:53:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | impl VideoCore {
[INFO] [stdout]    | -------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 53 |     pub fn set_display_dimensions(width: u32, height: u32) -> (u32, u32) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `height` is never read
[INFO] [stdout]   --> src/graphics/framebuffer.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct FrameBuffer {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     height: usize,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `cpu_id` is never read
[INFO] [stdout]  --> src/kernel/cpu.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Cpu {
[INFO] [stdout]   |            --- field in this struct
[INFO] [stdout] 8 |     cpu_id: usize,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `stack` is never read
[INFO] [stdout]  --> src/kernel/process.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Process {
[INFO] [stdout]   |            ------- field in this struct
[INFO] [stdout] 6 |     stack: Box<[u8; Self::STACK_SIZE]>,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `width` and `height` are never used
[INFO] [stdout]   --> src/util/rect.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout]  9 | impl Rect {
[INFO] [stdout]    | --------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn width(self) -> usize {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn height(self) -> usize {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/kernel/kernel.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |         self.serial.lock().set(uart_controller);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 35 |         let _ = self.serial.lock().set(uart_controller);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown token in expression
[INFO] [stdout]   --> src/kernel/cpu.rs:44:28
[INFO] [stdout]    |
[INFO] [stdout] 44 |             unsafe { asm!("msr DAIFCLR, #0b1111") }
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: instantiated into assembly here
[INFO] [stdout]   --> <inline asm>:2:15
[INFO] [stdout]    |
[INFO] [stdout]  2 |     msr DAIFCLR, #0b1111
[INFO] [stdout]    |                  ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unknown token in expression
[INFO] [stdout]   --> src/kernel/cpu.rs:34:28
[INFO] [stdout]    |
[INFO] [stdout] 34 |             unsafe { asm!("msr DAIFSET, #0b1111") }
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: instantiated into assembly here
[INFO] [stdout]   --> <inline asm>:2:15
[INFO] [stdout]    |
[INFO] [stdout]  2 |     msr DAIFSET, #0b1111
[INFO] [stdout]    |                  ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid instruction mnemonic 'msr'
[INFO] [stdout]   --> src/devices/generic/timer.rs:21:24
[INFO] [stdout]    |
[INFO] [stdout] 21 |         unsafe { asm!("msr CNTP_CVAL_EL0, {}", in(reg) target_counter as u64) }
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: instantiated into assembly here
[INFO] [stdout]   --> <inline asm>:2:2
[INFO] [stdout]    |
[INFO] [stdout]  2 |     msr CNTP_CVAL_EL0, rax
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid instruction mnemonic 'mrs'
[INFO] [stdout]   --> src/devices/generic/timer.rs:26:24
[INFO] [stdout]    |
[INFO] [stdout] 26 |         unsafe { asm!("mrs {}, CNTFRQ_EL0", out(reg) freq) }
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: instantiated into assembly here
[INFO] [stdout]   --> <inline asm>:2:2
[INFO] [stdout]    |
[INFO] [stdout]  2 |     mrs rax, CNTFRQ_EL0
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid instruction mnemonic 'mrs'
[INFO] [stdout]   --> src/devices/generic/timer.rs:11:25
[INFO] [stdout]    |
[INFO] [stdout] 11 |         unsafe { asm!( "mrs {}, CNTPCT_EL0", out(reg) counter) }
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: instantiated into assembly here
[INFO] [stdout]   --> <inline asm>:2:2
[INFO] [stdout]    |
[INFO] [stdout]  2 |     mrs rax, CNTPCT_EL0
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid instruction mnemonic 'mrs'
[INFO] [stdout]   --> src/main.rs:29:27
[INFO] [stdout]    |
[INFO] [stdout] 29 |         core::arch::asm!("mrs {}, CurrentEL", out(reg) el);
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: instantiated into assembly here
[INFO] [stdout]   --> <inline asm>:2:2
[INFO] [stdout]    |
[INFO] [stdout]  2 |     mrs rax, CurrentEL
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `os` (bin "os") due to 6 previous errors; 16 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f265475e0f2e54e92a214bbcfd5be8356a7d8ebdbfd2fd871b769abd436a1d60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f265475e0f2e54e92a214bbcfd5be8356a7d8ebdbfd2fd871b769abd436a1d60", kill_on_drop: false }`
[INFO] [stdout] f265475e0f2e54e92a214bbcfd5be8356a7d8ebdbfd2fd871b769abd436a1d60