[INFO] cloning repository https://github.com/weijunji/wcore
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/weijunji/wcore" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweijunji%2Fwcore", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweijunji%2Fwcore'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 22b76461d60231fba866f8153139d6aefa810c87
[INFO] checking weijunji/wcore against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fweijunji%2Fwcore" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/weijunji/wcore
[INFO] finished tweaking git repo https://github.com/weijunji/wcore
[INFO] tweaked toml for git repo https://github.com/weijunji/wcore written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/weijunji/wcore on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/weijunji/wcore 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4ff98721e7714af438aa1cfbcde1b2e4bbf9ae62112f7032cbc9c8aab52f854
[INFO] running `Command { std: "docker" "start" "-a" "e4ff98721e7714af438aa1cfbcde1b2e4bbf9ae62112f7032cbc9c8aab52f854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4ff98721e7714af438aa1cfbcde1b2e4bbf9ae62112f7032cbc9c8aab52f854", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4ff98721e7714af438aa1cfbcde1b2e4bbf9ae62112f7032cbc9c8aab52f854", kill_on_drop: false }`
[INFO] [stdout] e4ff98721e7714af438aa1cfbcde1b2e4bbf9ae62112f7032cbc9c8aab52f854
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6690e0912bedbb8b02ef1ceb468d39aff8c58cb217444e32dbc4043442f957f8
[INFO] running `Command { std: "docker" "start" "-a" "6690e0912bedbb8b02ef1ceb468d39aff8c58cb217444e32dbc4043442f957f8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling arr_macro_impl v0.1.3
[INFO] [stderr]     Checking arr_macro v0.1.3
[INFO] [stderr]     Checking wcore v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::sync::*`
[INFO] [stdout]  --> src/sync/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use core::sync::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `x10`: unknown register
[INFO] [stdout]   --> src/sbi.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |                 inout("x10") $arg0 => ret,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     sbi_call!(SBI_CONSOLE_PUTCHAR, c, 0, 0);
[INFO] [stdout]    |     --------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `sbi_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `x11`: unknown register
[INFO] [stdout]   --> src/sbi.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |                 in("x11") $arg1,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     sbi_call!(SBI_CONSOLE_PUTCHAR, c, 0, 0);
[INFO] [stdout]    |     --------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `sbi_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `x12`: unknown register
[INFO] [stdout]   --> src/sbi.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |                 in("x12") $arg2,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     sbi_call!(SBI_CONSOLE_PUTCHAR, c, 0, 0);
[INFO] [stdout]    |     --------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `sbi_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `x17`: unknown register
[INFO] [stdout]   --> src/sbi.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 in("x17") $which,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 47 |     sbi_call!(SBI_CONSOLE_PUTCHAR, c, 0, 0);
[INFO] [stdout]    |     --------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `sbi_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `x10`: unknown register
[INFO] [stdout]   --> src/sbi.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |                 out("x10") ret,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     sbi_call0!(SBI_CONSOLE_GETCHAR)
[INFO] [stdout]    |     ------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `sbi_call0` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `x17`: unknown register
[INFO] [stdout]   --> src/sbi.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 in("x17") $which,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 52 |     sbi_call0!(SBI_CONSOLE_GETCHAR)
[INFO] [stdout]    |     ------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `sbi_call0` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `x10`: unknown register
[INFO] [stdout]   --> src/sbi.rs:27:17
[INFO] [stdout]    |
[INFO] [stdout] 27 |                 out("x10") ret,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     sbi_call0!(SBI_SHUTDOWN);
[INFO] [stdout]    |     ------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `sbi_call0` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `x17`: unknown register
[INFO] [stdout]   --> src/sbi.rs:28:17
[INFO] [stdout]    |
[INFO] [stdout] 28 |                 in("x17") $which,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     sbi_call0!(SBI_SHUTDOWN);
[INFO] [stdout]    |     ------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `sbi_call0` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `x10`: unknown register
[INFO] [stdout]   --> src/sbi.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 |                 inout("x10") $arg0 => ret,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     sbi_call!(SBI_SET_TIMER, stime_val, 0, 0);
[INFO] [stdout]    |     ----------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `sbi_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `x11`: unknown register
[INFO] [stdout]   --> src/sbi.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |                 in("x11") $arg1,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     sbi_call!(SBI_SET_TIMER, stime_val, 0, 0);
[INFO] [stdout]    |     ----------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `sbi_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `x12`: unknown register
[INFO] [stdout]   --> src/sbi.rs:13:17
[INFO] [stdout]    |
[INFO] [stdout] 13 |                 in("x12") $arg2,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     sbi_call!(SBI_SET_TIMER, stime_val, 0, 0);
[INFO] [stdout]    |     ----------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `sbi_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: invalid register `x17`: unknown register
[INFO] [stdout]   --> src/sbi.rs:14:17
[INFO] [stdout]    |
[INFO] [stdout] 14 |                 in("x17") $which,
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     sbi_call!(SBI_SET_TIMER, stime_val, 0, 0);
[INFO] [stdout]    |     ----------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `sbi_call` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable const library feature `const_default`
[INFO] [stdout]   --> src/mm/alloc/slub.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl const Default for MemCacheCpu {
[INFO] [stdout]    |            ^^^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #143894 <https://github.com/rust-lang/rust/issues/143894> for more information
[INFO] [stdout]    = help: add `#![feature(const_default)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-07-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable const library feature `const_default`
[INFO] [stdout]   --> src/sync/percpu.rs:29:31
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl<T: ~const Default> const Default for PerCpu<T> {
[INFO] [stdout]    |                               ^^^^^^^ trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #143894 <https://github.com/rust-lang/rust/issues/143894> for more information
[INFO] [stdout]    = help: add `#![feature(const_default)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-07-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable const library feature `const_default`
[INFO] [stdout]   --> src/sync/percpu.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl<T: ~const Default> const Default for PerCpu<T> {
[INFO] [stdout]    |         ------ ^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         trait is not stable as const yet
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #143894 <https://github.com/rust-lang/rust/issues/143894> for more information
[INFO] [stdout]    = help: add `#![feature(const_default)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-07-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_fn_trait_bound` has been stable since 1.61.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(const_fn_trait_bound)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `default_alloc_error_handler` has been stable since 1.68.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(default_alloc_error_handler)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `maybe_uninit_extra` has been stable since 1.60.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(maybe_uninit_extra)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `panic_info_message` has been stable since 1.81.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(panic_info_message)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `new_uninit` has been stable since 1.82.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(new_uninit)]
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0053]: method `steps_between` has an incompatible type for trait
[INFO] [stdout]   --> src/mm/page.rs:70:51
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout]    |                                                   ^^^^^^^^^^^^^ expected `(usize, Option<usize>)`, found `Option<usize>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected signature `fn(&page::PageFrame, &page::PageFrame) -> (usize, Option<usize>)`
[INFO] [stdout]               found signature `fn(&page::PageFrame, &page::PageFrame) -> Option<usize>`
[INFO] [stdout] help: change the output type to match the trait
[INFO] [stdout]    |
[INFO] [stdout] 70 -     fn steps_between(start: &Self, end: &Self) -> Option<usize> {
[INFO] [stdout] 70 +     fn steps_between(start: &Self, end: &Self) -> (usize, Option<usize>) {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::sync::*`
[INFO] [stdout]  --> src/sync/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use core::sync::*;
[INFO] [stdout]   |         ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0152]: found duplicate lang item `panic_impl`
[INFO] [stdout]   --> src/panic.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / fn panic_handler(info: &PanicInfo) -> ! {
[INFO] [stdout] 10 | |     // TODO: unwind the stack
[INFO] [stdout] 11 | |     unsafe {
[INFO] [stdout] ...  |
[INFO] [stdout] 19 | |     shutdown()
[INFO] [stdout] 20 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the lang item is first defined in crate `std` (which `test` depends on)
[INFO] [stdout]    = note: first definition in `std` loaded from /opt/rustwide/rustup-home/toolchains/a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-54e42b35ab65fe3c.rlib
[INFO] [stdout]    = note: second definition in the local crate (`wcore`)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0152`.
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `T: [const] Default` is not satisfied
[INFO] [stdout]   --> src/sync/percpu.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |         Default::default()
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: required for `percpu::PerCpu<T>` to implement `[const] Default`
[INFO] [stdout]   --> src/sync/percpu.rs:29:31
[INFO] [stdout]    |
[INFO] [stdout] 29 | impl<T: ~const Default> const Default for PerCpu<T> {
[INFO] [stdout]    |         --------------        ^^^^^^^     ^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         unsatisfied trait bound introduced here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature `new_zeroed_alloc`
[INFO] [stdout]   --> src/mm/mapping/pagetable.rs:43:18
[INFO] [stdout]    |
[INFO] [stdout] 43 |         unsafe { Box::new_zeroed().assume_init() }
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #129396 <https://github.com/rust-lang/rust/issues/129396> for more information
[INFO] [stdout]    = help: add `#![feature(new_zeroed_alloc)]` to the crate attributes to enable
[INFO] [stdout]    = note: this compiler was built on 2025-07-18; consider upgrading it if it is out of date
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wcore` (bin "wcore" test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no method named `unwrap` found for struct `PanicMessage` in the current scope
[INFO] [stdout]   --> src/panic.rs:15:28
[INFO] [stdout]    |
[INFO] [stdout] 15 |             info.message().unwrap(),
[INFO] [stdout]    |                            ^^^^^^ method not found in `PanicMessage<'_>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `Default` is not yet stable as a const trait
[INFO] [stdout]   --> src/sync/percpu.rs:18:46
[INFO] [stdout]    |
[INFO] [stdout] 18 |         macro_rules! percpu_arr {() => {arr![Default::default(); $n]};}
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 31 |         let array: [T; NCPU] = percpu_arr!();
[INFO] [stdout]    |                                ------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the macro `proc_macro_call` which comes from the expansion of the macro `percpu_arr` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: add `#![feature(const_default)]` to the crate attributes to enable
[INFO] [stdout]   --> src/main.rs:11:1
[INFO] [stdout]    |
[INFO] [stdout] 11 + #![feature(const_default)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0053, E0277, E0599, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0053`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `wcore` (bin "wcore") due to 20 previous errors; 6 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "6690e0912bedbb8b02ef1ceb468d39aff8c58cb217444e32dbc4043442f957f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6690e0912bedbb8b02ef1ceb468d39aff8c58cb217444e32dbc4043442f957f8", kill_on_drop: false }`
[INFO] [stdout] 6690e0912bedbb8b02ef1ceb468d39aff8c58cb217444e32dbc4043442f957f8
