[INFO] cloning repository https://github.com/JiaFengYu/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/JiaFengYu/rust_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJiaFengYu%2Frust_os", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJiaFengYu%2Frust_os'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7338f3f2cf70d58e1f4f003bd0799132164cc9b8 [INFO] checking JiaFengYu/rust_os/7338f3f2cf70d58e1f4f003bd0799132164cc9b8 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJiaFengYu%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/JiaFengYu/rust_os 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-0-tc1/source/.cargo/config.toml [INFO] started tweaking git repo https://github.com/JiaFengYu/rust_os [INFO] removed 0 missing tests [INFO] finished tweaking git repo https://github.com/JiaFengYu/rust_os [INFO] tweaked toml for git repo https://github.com/JiaFengYu/rust_os written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/JiaFengYu/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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded pc-keyboard v0.7.0 [INFO] [stderr] Downloaded x86_64 v0.14.12 [INFO] [stderr] Downloaded bootloader v0.9.29 [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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1159af41b39efd0ca131ee20f39057901690206b47153984561bd43401c2193f [INFO] running `Command { std: "docker" "start" "-a" "1159af41b39efd0ca131ee20f39057901690206b47153984561bd43401c2193f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1159af41b39efd0ca131ee20f39057901690206b47153984561bd43401c2193f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1159af41b39efd0ca131ee20f39057901690206b47153984561bd43401c2193f", kill_on_drop: false }` [INFO] [stdout] 1159af41b39efd0ca131ee20f39057901690206b47153984561bd43401c2193f [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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5e1c9b0bfb9331b922905dfdfb5f5047702d0b7a4ed617679f0f31dddccc2e0e [INFO] running `Command { std: "docker" "start" "-a" "5e1c9b0bfb9331b922905dfdfb5f5047702d0b7a4ed617679f0f31dddccc2e0e", kill_on_drop: false }` [INFO] [stderr] Compiling rustversion v1.0.17 [INFO] [stderr] Checking bit_field v0.10.2 [INFO] [stderr] Checking volatile v0.4.6 [INFO] [stderr] Checking bitflags v2.5.0 [INFO] [stderr] Compiling bootloader v0.9.29 [INFO] [stderr] Checking spin v0.5.2 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking volatile v0.2.7 [INFO] [stderr] Checking pc-keyboard v0.7.0 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking x86_64 v0.14.12 [INFO] [stderr] Checking pic8259 v0.10.4 [INFO] [stderr] Checking uart_16550 v0.2.19 [INFO] [stderr] Checking rust_os v0.1.0 (/opt/rustwide/workdir) [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: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 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] 16 | 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: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 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] 16 | let stack_start = VirtAddr::from_ptr(unsafe { addr_of!(stack) }); [INFO] [stdout] | ~~~~~~~~~ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `stack` should have an upper case name [INFO] [stdout] --> src/gdt.rs:14:24 [INFO] [stdout] | [INFO] [stdout] 14 | static mut stack: [u8; STACK_SIZE] = [0; STACK_SIZE]; [INFO] [stdout] | ^^^^^ help: convert the identifier to upper case: `STACK` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_os` (lib test) due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "5e1c9b0bfb9331b922905dfdfb5f5047702d0b7a4ed617679f0f31dddccc2e0e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5e1c9b0bfb9331b922905dfdfb5f5047702d0b7a4ed617679f0f31dddccc2e0e", kill_on_drop: false }` [INFO] [stdout] 5e1c9b0bfb9331b922905dfdfb5f5047702d0b7a4ed617679f0f31dddccc2e0e