[INFO] cloning repository https://github.com/ruhuang2001/os_rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ruhuang2001/os_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruhuang2001%2Fos_rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruhuang2001%2Fos_rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 423be09a7cb7727af25b58f06b646c06ad47ff8d [INFO] testing ruhuang2001/os_rust against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_in_2025-retry-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fruhuang2001%2Fos_rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] removed /workspace/builds/worker-7-tc1/source/.cargo/config.toml [INFO] started tweaking git repo https://github.com/ruhuang2001/os_rust [INFO] removed 0 missing tests [INFO] finished tweaking git repo https://github.com/ruhuang2001/os_rust [INFO] tweaked toml for git repo https://github.com/ruhuang2001/os_rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/ruhuang2001/os_rust on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/ruhuang2001/os_rust 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: unstable [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded pic8259 v0.10.2 [INFO] [stderr] Downloaded uart_16550 v0.2.16 [INFO] [stderr] Downloaded x86_64 v0.14.8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 763dbe83aabb839519e49cf0b9aac7d03cb98709f0d55a44254d680140eca9cd [INFO] running `Command { std: "docker" "start" "-a" "763dbe83aabb839519e49cf0b9aac7d03cb98709f0d55a44254d680140eca9cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "763dbe83aabb839519e49cf0b9aac7d03cb98709f0d55a44254d680140eca9cd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "763dbe83aabb839519e49cf0b9aac7d03cb98709f0d55a44254d680140eca9cd", kill_on_drop: false }` [INFO] [stdout] 763dbe83aabb839519e49cf0b9aac7d03cb98709f0d55a44254d680140eca9cd [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 19bd37c0a0a6058cf12bf58192d81d6763bac1426db43bba49683dc961327963 [INFO] running `Command { std: "docker" "start" "-a" "19bd37c0a0a6058cf12bf58192d81d6763bac1426db43bba49683dc961327963", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: unstable [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling x86_64 v0.14.8 [INFO] [stderr] Compiling volatile v0.4.4 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling bit_field v0.10.1 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling bootloader v0.9.22 [INFO] [stderr] Compiling spin v0.5.2 [INFO] [stderr] Compiling pc-keyboard v0.5.1 [INFO] [stderr] Compiling volatile v0.2.7 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling spinning_top v0.2.4 [INFO] [stderr] Compiling linked_list_allocator v0.9.1 [INFO] [stderr] Compiling pic8259 v0.10.2 [INFO] [stderr] Compiling uart_16550 v0.2.16 [INFO] [stderr] Compiling os_rust v0.1.0 (/opt/rustwide/workdir) [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:8:12 [INFO] [stdout] | [INFO] [stdout] 8 | #![feature(const_mut_refs)] [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 [INFO] [stdout] --> src/gdt.rs:15:58 [INFO] [stdout] | [INFO] [stdout] 15 | let stack_start = VirtAddr::from_ptr(unsafe {&STACK }); [INFO] [stdout] | ^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [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] 15 | let stack_start = VirtAddr::from_ptr(unsafe {&raw const STACK }); [INFO] [stdout] | +++++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/allocator.rs:76:17 [INFO] [stdout] | [INFO] [stdout] 76 | pub fn lock(&self) -> spin::MutexGuard { [INFO] [stdout] | ^^^^^ ------------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 76 | pub fn lock(&self) -> spin::MutexGuard<'_, A> { [INFO] [stdout] | +++ [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 variable: `x` [INFO] [stdout] --> src/main.rs:34:9 [INFO] [stdout] | [INFO] [stdout] 34 | let x = Box::new(41); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_x` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `os_rust` (bin "os_rust") due to 1 previous error; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "19bd37c0a0a6058cf12bf58192d81d6763bac1426db43bba49683dc961327963", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "19bd37c0a0a6058cf12bf58192d81d6763bac1426db43bba49683dc961327963", kill_on_drop: false }` [INFO] [stdout] 19bd37c0a0a6058cf12bf58192d81d6763bac1426db43bba49683dc961327963