[INFO] cloning repository https://github.com/cedrickchee/taijios [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cedrickchee/taijios" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcedrickchee%2Ftaijios", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcedrickchee%2Ftaijios'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5aae5b767d1f6defd088cd5a55be170dda8f1efb [INFO] checking cedrickchee/taijios/5aae5b767d1f6defd088cd5a55be170dda8f1efb against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcedrickchee%2Ftaijios" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cedrickchee/taijios on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-2-tc1/source/.cargo/config.toml [INFO] removed /workspace/builds/worker-2-tc1/source/rust-toolchain [INFO] started tweaking git repo https://github.com/cedrickchee/taijios [INFO] removed 0 missing tests [INFO] finished tweaking git repo https://github.com/cedrickchee/taijios [INFO] tweaked toml for git repo https://github.com/cedrickchee/taijios written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/cedrickchee/taijios 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded volatile v0.2.7 [INFO] [stderr] Downloaded pc-keyboard v0.5.1 [INFO] [stderr] Downloaded pic8259 v0.10.2 [INFO] [stderr] Downloaded volatile v0.4.5 [INFO] [stderr] Downloaded conquer-util v0.2.0 [INFO] [stderr] Downloaded spinning_top v0.2.4 [INFO] [stderr] Downloaded bootloader v0.9.22 [INFO] [stderr] Downloaded linked_list_allocator v0.9.1 [INFO] [stderr] Downloaded conquer-once v0.2.1 [INFO] [stderr] Downloaded x86_64 v0.14.9 [INFO] [stderr] Downloaded uart_16550 v0.2.18 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9130b8490d8e81580b8f172f65e2a29e44a1428e53196c565890d487c4b68ac5 [INFO] running `Command { std: "docker" "start" "-a" "9130b8490d8e81580b8f172f65e2a29e44a1428e53196c565890d487c4b68ac5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9130b8490d8e81580b8f172f65e2a29e44a1428e53196c565890d487c4b68ac5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9130b8490d8e81580b8f172f65e2a29e44a1428e53196c565890d487c4b68ac5", kill_on_drop: false }` [INFO] [stdout] 9130b8490d8e81580b8f172f65e2a29e44a1428e53196c565890d487c4b68ac5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cfa9eca482285833b78d70d5fb2290a6e92fb4f9c5e5ac7ad89e601b9d88986c [INFO] running `Command { std: "docker" "start" "-a" "cfa9eca482285833b78d70d5fb2290a6e92fb4f9c5e5ac7ad89e601b9d88986c", kill_on_drop: false }` [INFO] [stderr] Compiling rustversion v1.0.7 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling futures-task v0.3.21 [INFO] [stderr] Checking volatile v0.4.5 [INFO] [stderr] Checking bit_field v0.10.1 [INFO] [stderr] Compiling futures-core v0.3.21 [INFO] [stderr] Compiling bootloader v0.9.22 [INFO] [stderr] Compiling futures-util v0.3.21 [INFO] [stderr] Checking conquer-util v0.2.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking pc-keyboard v0.5.1 [INFO] [stderr] Checking volatile v0.2.7 [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 v0.14.9 [INFO] [stderr] Checking pic8259 v0.10.2 [INFO] [stderr] Checking uart_16550 v0.2.18 [INFO] [stderr] Checking tiny-os v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/vga_buffer.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | /// syntax: cast the integer 0xb8000 as an mutable [raw [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | buffer: unsafe { &mut *(0xb8000 as *mut Buffer) }, [INFO] [stdout] | ------------------------------------------------- rustdoc does not generate documentation for expression fields [INFO] [stdout] | [INFO] [stdout] = help: use `//` for a plain comment [INFO] [stdout] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/vga_buffer.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | /// pointer](https://doc.rust-lang.org/book/ch19-01-unsafe-rust.html#dereferencing-a-raw-pointer). [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | buffer: unsafe { &mut *(0xb8000 as *mut Buffer) }, [INFO] [stdout] | ------------------------------------------------- rustdoc does not generate documentation for expression fields [INFO] [stdout] | [INFO] [stdout] = help: use `//` for a plain comment [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/vga_buffer.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | /// Then we convert it to a mutable reference by dereferencing it [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | buffer: unsafe { &mut *(0xb8000 as *mut Buffer) }, [INFO] [stdout] | ------------------------------------------------- rustdoc does not generate documentation for expression fields [INFO] [stdout] | [INFO] [stdout] = help: use `//` for a plain comment [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/vga_buffer.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | /// (through *) and immediately borrowing it again (through &mut). This [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | buffer: unsafe { &mut *(0xb8000 as *mut Buffer) }, [INFO] [stdout] | ------------------------------------------------- rustdoc does not generate documentation for expression fields [INFO] [stdout] | [INFO] [stdout] = help: use `//` for a plain comment [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/vga_buffer.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | /// conversion requires an unsafe block, since the compiler can’t [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 43 | /// guarantee that the raw pointer is valid. [INFO] [stdout] 44 | buffer: unsafe { &mut *(0xb8000 as *mut Buffer) }, [INFO] [stdout] | ------------------------------------------------- rustdoc does not generate documentation for expression fields [INFO] [stdout] | [INFO] [stdout] = help: use `//` for a plain comment [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/vga_buffer.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | /// guarantee that the raw pointer is valid. [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 44 | buffer: unsafe { &mut *(0xb8000 as *mut Buffer) }, [INFO] [stdout] | ------------------------------------------------- rustdoc does not generate documentation for expression fields [INFO] [stdout] | [INFO] [stdout] = help: use `//` for a plain comment [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: unused doc comment [INFO] [stdout] --> src/vga_buffer.rs:38:9 [INFO] [stdout] | [INFO] [stdout] 38 | /// syntax: cast the integer 0xb8000 as an mutable [raw [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | buffer: unsafe { &mut *(0xb8000 as *mut Buffer) }, [INFO] [stdout] | ------------------------------------------------- rustdoc does not generate documentation for expression fields [INFO] [stdout] | [INFO] [stdout] = help: use `//` for a plain comment [INFO] [stdout] = note: `#[warn(unused_doc_comments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/vga_buffer.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | /// pointer](https://doc.rust-lang.org/book/ch19-01-unsafe-rust.html#dereferencing-a-raw-pointer). [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | buffer: unsafe { &mut *(0xb8000 as *mut Buffer) }, [INFO] [stdout] | ------------------------------------------------- rustdoc does not generate documentation for expression fields [INFO] [stdout] | [INFO] [stdout] = help: use `//` for a plain comment [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/vga_buffer.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | /// Then we convert it to a mutable reference by dereferencing it [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | buffer: unsafe { &mut *(0xb8000 as *mut Buffer) }, [INFO] [stdout] | ------------------------------------------------- rustdoc does not generate documentation for expression fields [INFO] [stdout] | [INFO] [stdout] = help: use `//` for a plain comment [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/vga_buffer.rs:41:9 [INFO] [stdout] | [INFO] [stdout] 41 | /// (through *) and immediately borrowing it again (through &mut). This [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 44 | buffer: unsafe { &mut *(0xb8000 as *mut Buffer) }, [INFO] [stdout] | ------------------------------------------------- rustdoc does not generate documentation for expression fields [INFO] [stdout] | [INFO] [stdout] = help: use `//` for a plain comment [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/vga_buffer.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | /// conversion requires an unsafe block, since the compiler can’t [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 43 | /// guarantee that the raw pointer is valid. [INFO] [stdout] 44 | buffer: unsafe { &mut *(0xb8000 as *mut Buffer) }, [INFO] [stdout] | ------------------------------------------------- rustdoc does not generate documentation for expression fields [INFO] [stdout] | [INFO] [stdout] = help: use `//` for a plain comment [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused doc comment [INFO] [stdout] --> src/vga_buffer.rs:43:9 [INFO] [stdout] | [INFO] [stdout] 43 | /// guarantee that the raw pointer is valid. [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] 44 | buffer: unsafe { &mut *(0xb8000 as *mut Buffer) }, [INFO] [stdout] | ------------------------------------------------- rustdoc does not generate documentation for expression fields [INFO] [stdout] | [INFO] [stdout] = help: use `//` for a plain comment [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the feature `const_mut_refs` has been stable since 1.83.0-nightly and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | #![feature(const_mut_refs)] // use of mutable references in const functions is unstable. [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-nightly and no longer requires an attribute to enable [INFO] [stdout] --> src/lib.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | #![feature(const_mut_refs)] // use of mutable references in const functions is unstable. [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/gdt.rs:36:59 [INFO] [stdout] | [INFO] [stdout] 36 | 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] 36 | 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:36:59 [INFO] [stdout] | [INFO] [stdout] 36 | 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] 36 | let stack_start = VirtAddr::from_ptr(unsafe { addr_of!(STACK) }); [INFO] [stdout] | ~~~~~~~~~ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `tiny-os` (lib test) due to 2 previous errors; 8 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "cfa9eca482285833b78d70d5fb2290a6e92fb4f9c5e5ac7ad89e601b9d88986c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cfa9eca482285833b78d70d5fb2290a6e92fb4f9c5e5ac7ad89e601b9d88986c", kill_on_drop: false }` [INFO] [stdout] cfa9eca482285833b78d70d5fb2290a6e92fb4f9c5e5ac7ad89e601b9d88986c