[INFO] cloning repository https://github.com/xiaoniuhululu/rust_milk_tea_os
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xiaoniuhululu/rust_milk_tea_os" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaoniuhululu%2Frust_milk_tea_os", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaoniuhululu%2Frust_milk_tea_os'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7abe0d5b481963b851d6694b39825cfc29290b7c
[INFO] checking xiaoniuhululu/rust_milk_tea_os/7abe0d5b481963b851d6694b39825cfc29290b7c against master#80b898258da78fdd1262438126aa0cf90e395f0c for pr-149195-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaoniuhululu%2Frust_milk_tea_os" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-5-tc1/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/xiaoniuhululu/rust_milk_tea_os
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/xiaoniuhululu/rust_milk_tea_os
[INFO] tweaked toml for git repo https://github.com/xiaoniuhululu/rust_milk_tea_os written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xiaoniuhululu/rust_milk_tea_os on toolchain 80b898258da78fdd1262438126aa0cf90e395f0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80b898258da78fdd1262438126aa0cf90e395f0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/xiaoniuhululu/rust_milk_tea_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" "+80b898258da78fdd1262438126aa0cf90e395f0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 29 packages to latest compatible versions
[INFO] [stderr]       Adding autocfg v1.5.0
[INFO] [stderr]       Adding bit_field v0.10.3
[INFO] [stderr]       Adding bitflags v1.3.2
[INFO] [stderr]       Adding bitflags v2.10.0
[INFO] [stderr]       Adding cfg-if v0.1.10
[INFO] [stderr]       Adding conquer-once v0.2.1 (available: v0.4.0)
[INFO] [stderr]       Adding conquer-util v0.2.0
[INFO] [stderr]       Adding crossbeam-queue v0.2.3 (available: v0.3.12)
[INFO] [stderr]       Adding crossbeam-utils v0.7.2
[INFO] [stderr]       Adding futures-core v0.3.31
[INFO] [stderr]       Adding futures-task v0.3.31
[INFO] [stderr]       Adding futures-util v0.3.31
[INFO] [stderr]       Adding lazy_static v1.5.0
[INFO] [stderr]       Adding linked_list_allocator v0.9.1 (available: v0.10.5)
[INFO] [stderr]       Adding lock_api v0.4.14
[INFO] [stderr]       Adding maybe-uninit v2.0.0
[INFO] [stderr]       Adding pc-keyboard v0.7.0 (available: v0.8.0)
[INFO] [stderr]       Adding pic8259 v0.10.4 (available: v0.11.0)
[INFO] [stderr]       Adding pin-project-lite v0.2.16
[INFO] [stderr]       Adding pin-utils v0.1.0
[INFO] [stderr]       Adding rustversion v1.0.22
[INFO] [stderr]       Adding scopeguard v1.2.0
[INFO] [stderr]       Adding spin v0.5.2 (available: v0.10.0)
[INFO] [stderr]       Adding spin v0.9.8
[INFO] [stderr]       Adding spinning_top v0.2.5
[INFO] [stderr]       Adding uart_16550 v0.2.19 (available: v0.4.0)
[INFO] [stderr]       Adding volatile v0.2.7 (available: v0.6.1)
[INFO] [stderr]       Adding volatile v0.4.6
[INFO] [stderr]       Adding x86_64 v0.14.13 (available: v0.15.4)
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uart_16550 v0.2.19
[INFO] [stderr]   Downloaded pic8259 v0.10.4
[INFO] [stderr]   Downloaded linked_list_allocator v0.9.1
[INFO] [stderr]   Downloaded volatile v0.2.7
[INFO] [stderr]   Downloaded conquer-once v0.2.1
[INFO] [stderr]   Downloaded conquer-util v0.2.0
[INFO] [stderr]   Downloaded x86_64 v0.14.13
[INFO] [stderr]   Downloaded pc-keyboard v0.7.0
[INFO] [stderr]   Downloaded bootloader v0.9.29
[INFO] [stderr]   Downloaded spinning_top v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+80b898258da78fdd1262438126aa0cf90e395f0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c4f7adb48a9d4adb54ae46441d8aa64d3cb9f89328c7fe66bd9ff7aa7636d81
[INFO] running `Command { std: "docker" "start" "-a" "4c4f7adb48a9d4adb54ae46441d8aa64d3cb9f89328c7fe66bd9ff7aa7636d81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c4f7adb48a9d4adb54ae46441d8aa64d3cb9f89328c7fe66bd9ff7aa7636d81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c4f7adb48a9d4adb54ae46441d8aa64d3cb9f89328c7fe66bd9ff7aa7636d81", kill_on_drop: false }`
[INFO] [stdout] 4c4f7adb48a9d4adb54ae46441d8aa64d3cb9f89328c7fe66bd9ff7aa7636d81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:29356a839a4d14451438f794ce8414e707d72405f44418718d724d22562fe786" "/opt/rustwide/cargo-home/bin/cargo" "+80b898258da78fdd1262438126aa0cf90e395f0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 532e8da2789d7af0664d595bfb4bb54234c0096a2ad9a4ad50bcb30f28b428ec
[INFO] running `Command { std: "docker" "start" "-a" "532e8da2789d7af0664d595bfb4bb54234c0096a2ad9a4ad50bcb30f28b428ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking volatile v0.4.6
[INFO] [stderr]     Checking bit_field v0.10.3
[INFO] [stderr]    Compiling bootloader v0.9.29
[INFO] [stderr]     Checking conquer-util v0.2.0
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]     Checking pc-keyboard v0.7.0
[INFO] [stderr]     Checking spinning_top v0.2.5
[INFO] [stderr]     Checking conquer-once v0.2.1
[INFO] [stderr]     Checking linked_list_allocator v0.9.1
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking x86_64 v0.14.13
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking uart_16550 v0.2.19
[INFO] [stderr]     Checking pic8259 v0.10.4
[INFO] [stderr]     Checking rust_milk_tea_os 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:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(const_mut_refs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[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: 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:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(const_mut_refs)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/gdt.rs:22:50
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let stack_start = VirtAddr::from_ptr(unsafe { addr_of!(STACK) });//此处不安全
[INFO] [stdout]    |                                                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/allocator.rs:96:17
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn lock(&self) -> spin::MutexGuard<A> {
[INFO] [stdout]    |                 ^^^^^     ^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub fn lock(&self) -> spin::MutexGuard<'_, A> {
[INFO] [stdout]    |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/gdt.rs:22:50
[INFO] [stdout]    |
[INFO] [stdout] 22 |             let stack_start = VirtAddr::from_ptr(unsafe { addr_of!(STACK) });//此处不安全
[INFO] [stdout]    |                                                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[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] [stderr] error: could not compile `rust_milk_tea_os` (test "basic_boot") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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] 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] 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] [stderr] error: could not compile `rust_milk_tea_os` (bin "rust_milk_tea_os") due to 1 previous error
[INFO] [stderr] error: could not compile `rust_milk_tea_os` (test "stack_overflow") due to 1 previous error
[INFO] [stderr] error: could not compile `rust_milk_tea_os` (test "should_panic") due to 1 previous error
[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] 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: unreachable statement
[INFO] [stdout]    --> src/main.rs:126:5
[INFO] [stdout]     |
[INFO] [stdout] 123 |     executor.run();
[INFO] [stdout]     |     -------------- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 126 |     test_main();
[INFO] [stdout]     |     ^^^^^^^^^^^^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_milk_tea_os` (lib test) due to 1 previous error; 2 warnings emitted
[INFO] [stderr] error: could not compile `rust_milk_tea_os` (test "heap_allocation") due to 1 previous error
[INFO] [stderr] error: could not compile `rust_milk_tea_os` (bin "rust_milk_tea_os" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "532e8da2789d7af0664d595bfb4bb54234c0096a2ad9a4ad50bcb30f28b428ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "532e8da2789d7af0664d595bfb4bb54234c0096a2ad9a4ad50bcb30f28b428ec", kill_on_drop: false }`
[INFO] [stdout] 532e8da2789d7af0664d595bfb4bb54234c0096a2ad9a4ad50bcb30f28b428ec
