[INFO] cloning repository https://github.com/rcore-riscv-hypervisor-dev/riscv-hypervisor-extension
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rcore-riscv-hypervisor-dev/riscv-hypervisor-extension" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcore-riscv-hypervisor-dev%2Friscv-hypervisor-extension", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcore-riscv-hypervisor-dev%2Friscv-hypervisor-extension'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 681aef8df49fded92dca918bc647cb192b1706a6
[INFO] checking rcore-riscv-hypervisor-dev/riscv-hypervisor-extension against try#c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f for 2025-12-16-next-solver-global
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcore-riscv-hypervisor-dev%2Friscv-hypervisor-extension" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/rcore-riscv-hypervisor-dev/riscv-hypervisor-extension
[INFO] finished tweaking git repo https://github.com/rcore-riscv-hypervisor-dev/riscv-hypervisor-extension
[INFO] tweaked toml for git repo https://github.com/rcore-riscv-hypervisor-dev/riscv-hypervisor-extension written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rcore-riscv-hypervisor-dev/riscv-hypervisor-extension on toolchain c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rcore-riscv-hypervisor-dev/riscv-hypervisor-extension 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" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "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 rcore-riscv-hypervisor-dev/riscv-hypervisor-extension against try#c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f for 2025-12-16-next-solver-global
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frcore-riscv-hypervisor-dev%2Friscv-hypervisor-extension" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/rcore-riscv-hypervisor-dev/riscv-hypervisor-extension
[INFO] finished tweaking git repo https://github.com/rcore-riscv-hypervisor-dev/riscv-hypervisor-extension
[INFO] tweaked toml for git repo https://github.com/rcore-riscv-hypervisor-dev/riscv-hypervisor-extension written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rcore-riscv-hypervisor-dev/riscv-hypervisor-extension on toolchain c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rcore-riscv-hypervisor-dev/riscv-hypervisor-extension 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" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.61
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 443fc7d32711e7b13159ef05b256b19b6afe34c15465e2224d8a689e80d6ae83
[INFO] running `Command { std: "docker" "start" "-a" "443fc7d32711e7b13159ef05b256b19b6afe34c15465e2224d8a689e80d6ae83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "443fc7d32711e7b13159ef05b256b19b6afe34c15465e2224d8a689e80d6ae83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "443fc7d32711e7b13159ef05b256b19b6afe34c15465e2224d8a689e80d6ae83", kill_on_drop: false }`
[INFO] [stdout] 443fc7d32711e7b13159ef05b256b19b6afe34c15465e2224d8a689e80d6ae83
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cae51f9afc8e3da840b17a4280f2c43768353382d6f87e40f59dde449e353a13
[INFO] running `Command { std: "docker" "start" "-a" "cae51f9afc8e3da840b17a4280f2c43768353382d6f87e40f59dde449e353a13", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.61
[INFO] [stderr]    Compiling riscv-hypervisor-extension v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `x0` should have an upper camel case name
[INFO] [stdout]   --> build.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     x0 = 0,
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case (notice the capitalization): `X0`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `a0` should have an upper camel case name
[INFO] [stdout]   --> build.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout] 21 |     a0 = 10,
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case: `A0`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `a1` should have an upper camel case name
[INFO] [stdout]   --> build.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     a1 = 11
[INFO] [stdout]    |     ^^ help: convert the identifier to upper camel case: `A1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `x0` is never constructed
[INFO] [stdout]   --> build.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | enum Register{
[INFO] [stdout]    |      -------- variant in this enum
[INFO] [stdout] 20 |     x0 = 0,
[INFO] [stdout]    |     ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Register` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: failed to run custom build command for `riscv-hypervisor-extension v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/riscv-hypervisor-extension-3e75ed303dad13b9/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (79) panicked at build.rs:37:51:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x605d1c197ea2 - std[6e7dafacf83738d3]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x605d1c197ea2 - std[6e7dafacf83738d3]::backtrace_rs::backtrace::trace_unsynchronized::<std[6e7dafacf83738d3]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x605d1c197ea2 - std[6e7dafacf83738d3]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x605d1c197ea2 - <<std[6e7dafacf83738d3]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a0be91b3c9a28e48]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x605d1c1a8df7 - <core[a0be91b3c9a28e48]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x605d1c1a8df7 - core[a0be91b3c9a28e48]::fmt::write
[INFO] [stderr]      6:     0x605d1c19bdf6 - std[6e7dafacf83738d3]::io::default_write_fmt::<std[6e7dafacf83738d3]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/io/mod.rs:614:11
[INFO] [stderr]      7:     0x605d1c19bdf6 - <std[6e7dafacf83738d3]::sys::stdio::unix::Stderr as std[6e7dafacf83738d3]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/io/mod.rs:1969:13
[INFO] [stderr]      8:     0x605d1c18325f - <std[6e7dafacf83738d3]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x605d1c18325f - std[6e7dafacf83738d3]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x605d1c1943b1 - std[6e7dafacf83738d3]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x605d1c19456b - std[6e7dafacf83738d3]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x605d1c183318 - std[6e7dafacf83738d3]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x605d1c178799 - std[6e7dafacf83738d3]::sys::backtrace::__rust_end_short_backtrace::<std[6e7dafacf83738d3]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x605d1c183bfd - __rustc[faa1ecbbad637096]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x605d1c1a93fc - core[a0be91b3c9a28e48]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x605d1c1a91d2 - core[a0be91b3c9a28e48]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x605d1c16a1ce - build_script_build[646048ab1fc65068]::main
[INFO] [stderr]     18:     0x605d1c16b973 - <fn() as core[a0be91b3c9a28e48]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     19:     0x605d1c16a0d6 - std[6e7dafacf83738d3]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     20:     0x605d1c16a0e9 - std[6e7dafacf83738d3]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     21:     0x605d1c1939a6 - <&dyn core[a0be91b3c9a28e48]::ops::function::Fn<(), Output = i32> + core[a0be91b3c9a28e48]::marker::Sync + core[a0be91b3c9a28e48]::panic::unwind_safe::RefUnwindSafe as core[a0be91b3c9a28e48]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     22:     0x605d1c1939a6 - std[6e7dafacf83738d3]::panicking::catch_unwind::do_call::<&dyn core[a0be91b3c9a28e48]::ops::function::Fn<(), Output = i32> + core[a0be91b3c9a28e48]::marker::Sync + core[a0be91b3c9a28e48]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/panicking.rs:581:40
[INFO] [stderr]     23:     0x605d1c1939a6 - std[6e7dafacf83738d3]::panicking::catch_unwind::<i32, &dyn core[a0be91b3c9a28e48]::ops::function::Fn<(), Output = i32> + core[a0be91b3c9a28e48]::marker::Sync + core[a0be91b3c9a28e48]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/panicking.rs:544:19
[INFO] [stderr]     24:     0x605d1c1939a6 - std[6e7dafacf83738d3]::panic::catch_unwind::<&dyn core[a0be91b3c9a28e48]::ops::function::Fn<(), Output = i32> + core[a0be91b3c9a28e48]::marker::Sync + core[a0be91b3c9a28e48]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x605d1c1939a6 - std[6e7dafacf83738d3]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/rt.rs:175:24
[INFO] [stderr]     26:     0x605d1c1939a6 - std[6e7dafacf83738d3]::panicking::catch_unwind::do_call::<std[6e7dafacf83738d3]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/panicking.rs:581:40
[INFO] [stderr]     27:     0x605d1c1939a6 - std[6e7dafacf83738d3]::panicking::catch_unwind::<isize, std[6e7dafacf83738d3]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/panicking.rs:544:19
[INFO] [stderr]     28:     0x605d1c1939a6 - std[6e7dafacf83738d3]::panic::catch_unwind::<std[6e7dafacf83738d3]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x605d1c1939a6 - std[6e7dafacf83738d3]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/c9557a20e5ef2e0e02c29a5fafd850d1b7cf1e4f/library/std/src/rt.rs:171:5
[INFO] [stderr]     30:     0x605d1c16a0a1 - std[6e7dafacf83738d3]::rt::lang_start::<()>
[INFO] [stderr]     31:     0x605d1c16b9d5 - main
[INFO] [stderr]     32:     0x7c4559dc81ca - <unknown>
[INFO] [stderr]     33:     0x7c4559dc828b - __libc_start_main
[INFO] [stderr]     34:     0x605d1c169c95 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "cae51f9afc8e3da840b17a4280f2c43768353382d6f87e40f59dde449e353a13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cae51f9afc8e3da840b17a4280f2c43768353382d6f87e40f59dde449e353a13", kill_on_drop: false }`
[INFO] [stdout] cae51f9afc8e3da840b17a4280f2c43768353382d6f87e40f59dde449e353a13