[INFO] cloning repository https://github.com/twilfredo/fox-kernel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/twilfredo/fox-kernel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwilfredo%2Ffox-kernel", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwilfredo%2Ffox-kernel'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1bb0bc25231bd7d5704fb90533d513054d2e6eb7
[INFO] checking twilfredo/fox-kernel against master#5431404b87967c69438ea1e698edbe96505f0798 for pr-119849
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwilfredo%2Ffox-kernel" "/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/twilfredo/fox-kernel on toolchain 5431404b87967c69438ea1e698edbe96505f0798
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5431404b87967c69438ea1e698edbe96505f0798" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc1/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/twilfredo/fox-kernel
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/twilfredo/fox-kernel
[INFO] tweaked toml for git repo https://github.com/twilfredo/fox-kernel written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/twilfredo/fox-kernel 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" "+5431404b87967c69438ea1e698edbe96505f0798" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking twilfredo/fox-kernel against try#21bc403d557a2516df70ea80fb19b94177beede5 for pr-119849
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwilfredo%2Ffox-kernel" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/twilfredo/fox-kernel on toolchain 21bc403d557a2516df70ea80fb19b94177beede5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21bc403d557a2516df70ea80fb19b94177beede5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/twilfredo/fox-kernel
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/twilfredo/fox-kernel
[INFO] tweaked toml for git repo https://github.com/twilfredo/fox-kernel written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/twilfredo/fox-kernel 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" "+21bc403d557a2516df70ea80fb19b94177beede5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking twilfredo/fox-kernel against try#21bc403d557a2516df70ea80fb19b94177beede5 for pr-119849
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftwilfredo%2Ffox-kernel" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/twilfredo/fox-kernel on toolchain 21bc403d557a2516df70ea80fb19b94177beede5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21bc403d557a2516df70ea80fb19b94177beede5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/twilfredo/fox-kernel
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/twilfredo/fox-kernel
[INFO] tweaked toml for git repo https://github.com/twilfredo/fox-kernel written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/twilfredo/fox-kernel 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" "+21bc403d557a2516df70ea80fb19b94177beede5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+21bc403d557a2516df70ea80fb19b94177beede5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a0e4b441295a5c1b6020e2cab54423e87a9d4be4dc9e569b95132b5fb8cb483
[INFO] running `Command { std: "docker" "start" "-a" "9a0e4b441295a5c1b6020e2cab54423e87a9d4be4dc9e569b95132b5fb8cb483", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a0e4b441295a5c1b6020e2cab54423e87a9d4be4dc9e569b95132b5fb8cb483", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a0e4b441295a5c1b6020e2cab54423e87a9d4be4dc9e569b95132b5fb8cb483", kill_on_drop: false }`
[INFO] [stdout] 9a0e4b441295a5c1b6020e2cab54423e87a9d4be4dc9e569b95132b5fb8cb483
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+21bc403d557a2516df70ea80fb19b94177beede5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 086f42e3d9741ab6093c03349d3abb33e66979a2de2f7fc6894d8930d580de2c
[INFO] running `Command { std: "docker" "start" "-a" "086f42e3d9741ab6093c03349d3abb33e66979a2de2f7fc6894d8930d580de2c", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.12
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]    Compiling bootloader v0.9.23
[INFO] [stderr]     Checking volatile v0.4.6
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]     Checking volatile v0.2.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking x86_64 v0.14.10
[INFO] [stderr]     Checking uart_16550 v0.2.18
[INFO] [stderr]     Checking project_fox 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: shared reference of mutable static is discouraged
[INFO] [stdout]   --> src/kernel/gdt.rs:44:59
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let stack_start = VirtAddr::from_ptr(unsafe { &STACK });
[INFO] [stdout]    |                                                           ^^^^^^ shared reference of mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447>
[INFO] [stdout]    = note: reference of mutable static is a hard error from 2024 edition
[INFO] [stdout]    = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stdout]    = note: `#[warn(static_mut_ref)]` on by default
[INFO] [stdout] help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let stack_start = VirtAddr::from_ptr(unsafe { addr_of!(STACK) });
[INFO] [stdout]    |                                                           ~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: shared reference of mutable static is discouraged
[INFO] [stdout]   --> src/kernel/gdt.rs:44:59
[INFO] [stdout]    |
[INFO] [stdout] 44 |             let stack_start = VirtAddr::from_ptr(unsafe { &STACK });
[INFO] [stdout]    |                                                           ^^^^^^ shared reference of mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: for more information, see issue #114447 <https://github.com/rust-lang/rust/issues/114447>
[INFO] [stdout]    = note: reference of mutable static is a hard error from 2024 edition
[INFO] [stdout]    = note: mutable statics can be written to by multiple threads: aliasing violations or data races will cause undefined behavior
[INFO] [stdout]    = note: `#[warn(static_mut_ref)]` on by default
[INFO] [stdout] help: shared references are dangerous since if there's any kind of mutation of that static while the reference lives, that's UB; use `addr_of!` instead to create a raw pointer
[INFO] [stdout]    |
[INFO] [stdout] 44 |             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; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `project_fox` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/kernel/gdt.rs:39:26
[INFO] [stdout]    |
[INFO] [stdout] 39 |             struct Stack([u8; STACK_SIZE]);
[INFO] [stdout]    |                    ----- ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                    |
[INFO] [stdout]    |                    field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 39 |             struct Stack(());
[INFO] [stdout]    |                          ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "086f42e3d9741ab6093c03349d3abb33e66979a2de2f7fc6894d8930d580de2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "086f42e3d9741ab6093c03349d3abb33e66979a2de2f7fc6894d8930d580de2c", kill_on_drop: false }`
[INFO] [stdout] 086f42e3d9741ab6093c03349d3abb33e66979a2de2f7fc6894d8930d580de2c