[INFO] fetching crate wonderbox 0.5.0...
[INFO] testing wonderbox-0.5.0 against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739-1
[INFO] extracting crate wonderbox 0.5.0 into /workspace/builds/worker-0-tc1/source
[INFO] removed /workspace/builds/worker-0-tc1/source/rust-toolchain
[INFO] started tweaking crates.io crate wonderbox 0.5.0
[INFO] finished tweaking crates.io crate wonderbox 0.5.0
[INFO] tweaked toml for crates.io crate wonderbox 0.5.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate wonderbox 0.5.0 on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 017667ff7c9aa474944ca5bb4adc64178ee1778f87ecc6e2117dfd01c9fecb13
[INFO] running `Command { std: "docker" "start" "-a" "017667ff7c9aa474944ca5bb4adc64178ee1778f87ecc6e2117dfd01c9fecb13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "017667ff7c9aa474944ca5bb4adc64178ee1778f87ecc6e2117dfd01c9fecb13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "017667ff7c9aa474944ca5bb4adc64178ee1778f87ecc6e2117dfd01c9fecb13", kill_on_drop: false }`
[INFO] [stdout] 017667ff7c9aa474944ca5bb4adc64178ee1778f87ecc6e2117dfd01c9fecb13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c4899dafe6a13857bebb1e3b4b70ed9ea270333a282454dbc8320633e0596ea7
[INFO] running `Command { std: "docker" "start" "-a" "c4899dafe6a13857bebb1e3b4b70ed9ea270333a282454dbc8320633e0596ea7", kill_on_drop: false }`
[INFO] [stderr]    Compiling wonderbox v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]   --> src/lib.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![feature(core_intrinsics)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: using it is strongly discouraged
[INFO] [stdout]    = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:315:5
[INFO] [stdout]     |
[INFO] [stdout] 315 |     unsafe { std::intrinsics::type_name::<T>() }
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "c4899dafe6a13857bebb1e3b4b70ed9ea270333a282454dbc8320633e0596ea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4899dafe6a13857bebb1e3b4b70ed9ea270333a282454dbc8320633e0596ea7", kill_on_drop: false }`
[INFO] [stdout] c4899dafe6a13857bebb1e3b4b70ed9ea270333a282454dbc8320633e0596ea7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ed2f1b3356f504068035eafae832100d43eb5da86a737be3e09ae5e9c7df7add
[INFO] running `Command { std: "docker" "start" "-a" "ed2f1b3356f504068035eafae832100d43eb5da86a737be3e09ae5e9c7df7add", kill_on_drop: false }`
[INFO] [stderr]    Compiling wonderbox v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]   --> src/lib.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![feature(core_intrinsics)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: using it is strongly discouraged
[INFO] [stdout]    = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:315:5
[INFO] [stdout]     |
[INFO] [stdout] 315 |     unsafe { std::intrinsics::type_name::<T>() }
[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: the feature `core_intrinsics` is internal to the compiler or standard library
[INFO] [stdout]   --> src/lib.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![feature(core_intrinsics)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: using it is strongly discouraged
[INFO] [stdout]    = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/lib.rs:315:5
[INFO] [stdout]     |
[INFO] [stdout] 315 |     unsafe { std::intrinsics::type_name::<T>() }
[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: internal compiler error: /rustc-dev/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs:125:21: Nullary intrinsic type_name must be called in a const block. If you are seeing this message from code outside the standard library, the unstable implementation details of the relevant intrinsic may have changed. Consider using stable APIs instead. If you are adding a new nullary intrinsic that is inherently a runtime intrinsic, update this check.
[INFO] [stdout]    --> src/lib.rs:315:14
[INFO] [stdout]     |
[INFO] [stdout] 315 |     unsafe { std::intrinsics::type_name::<T>() }
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] thread 'rustc' (20) panicked at /rustc-dev/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs:125:21:
[INFO] [stderr] Box<dyn Any>
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x72ffc001e6cb - <<std[29689e6404d28ef9]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[e929cb53b82a81ca]::fmt::Display>::fmt
[INFO] [stderr]    1:     0x72ffc062d088 - core[e929cb53b82a81ca]::fmt::write
[INFO] [stderr]    2:     0x72ffc0035306 - <std[29689e6404d28ef9]::sys::stdio::unix::Stderr as std[29689e6404d28ef9]::io::Write>::write_fmt
[INFO] [stderr]    3:     0x72ffbfff4948 - std[29689e6404d28ef9]::panicking::default_hook::{closure#0}
[INFO] [stderr]    4:     0x72ffc0011d33 - std[29689e6404d28ef9]::panicking::default_hook
[INFO] [stderr]    5:     0x72ffbefd1ddc - std[29689e6404d28ef9]::panicking::update_hook::<alloc[9d7caffeb3b5d2c6]::boxed::Box<rustc_driver_impl[c35a04254f298831]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    6:     0x72ffc0012012 - std[29689e6404d28ef9]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x72ffbf001c11 - std[29689e6404d28ef9]::panicking::begin_panic::<rustc_errors[c75966727d52b40f]::ExplicitBug>::{closure#0}
[INFO] [stderr]    8:     0x72ffbeffa676 - std[29689e6404d28ef9]::sys::backtrace::__rust_end_short_backtrace::<std[29689e6404d28ef9]::panicking::begin_panic<rustc_errors[c75966727d52b40f]::ExplicitBug>::{closure#0}, !>
[INFO] [stderr]    9:     0x72ffbeff8658 - std[29689e6404d28ef9]::panicking::begin_panic::<rustc_errors[c75966727d52b40f]::ExplicitBug>
[INFO] [stderr]   10:     0x72ffbf00cf51 - <rustc_errors[c75966727d52b40f]::diagnostic::BugAbort as rustc_errors[c75966727d52b40f]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
[INFO] [stderr]   11:     0x72ffbf5e0dac - <rustc_errors[c75966727d52b40f]::DiagCtxtHandle>::span_bug::<rustc_span[5d29f49b478b107a]::span_encoding::Span, alloc[9d7caffeb3b5d2c6]::string::String>
[INFO] [stderr]   12:     0x72ffbf60ab06 - rustc_middle[2e4ea0f2297c83b2]::util::bug::opt_span_bug_fmt::<rustc_span[5d29f49b478b107a]::span_encoding::Span>::{closure#0}
[INFO] [stderr]   13:     0x72ffbf60acb2 - rustc_middle[2e4ea0f2297c83b2]::ty::context::tls::with_opt::<rustc_middle[2e4ea0f2297c83b2]::util::bug::opt_span_bug_fmt<rustc_span[5d29f49b478b107a]::span_encoding::Span>::{closure#0}, !>::{closure#0}
[INFO] [stderr]   14:     0x72ffbf5faeab - rustc_middle[2e4ea0f2297c83b2]::ty::context::tls::with_context_opt::<rustc_middle[2e4ea0f2297c83b2]::ty::context::tls::with_opt<rustc_middle[2e4ea0f2297c83b2]::util::bug::opt_span_bug_fmt<rustc_span[5d29f49b478b107a]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
[INFO] [stderr]   15:     0x72ffbce58e38 - rustc_middle[2e4ea0f2297c83b2]::util::bug::span_bug_fmt::<rustc_span[5d29f49b478b107a]::span_encoding::Span>
[INFO] [stderr]   16:     0x72ffc1646161 - <rustc_codegen_ssa[3518c9db413fb8ae]::mir::FunctionCx<rustc_codegen_llvm[b06fdb4b5303f71]::builder::GenericBuilder<rustc_codegen_llvm[b06fdb4b5303f71]::context::FullCx>>>::codegen_intrinsic_call
[INFO] [stderr]   17:     0x72ffc1953829 - rustc_codegen_ssa[3518c9db413fb8ae]::mir::codegen_mir::<rustc_codegen_llvm[b06fdb4b5303f71]::builder::GenericBuilder<rustc_codegen_llvm[b06fdb4b5303f71]::context::FullCx>>
[INFO] [stderr]   18:     0x72ffc0728494 - rustc_codegen_llvm[b06fdb4b5303f71]::base::compile_codegen_unit::module_codegen
[INFO] [stderr]   19:     0x72ffc1847389 - <rustc_codegen_llvm[b06fdb4b5303f71]::LlvmCodegenBackend as rustc_codegen_ssa[3518c9db413fb8ae]::traits::backend::ExtraBackendMethods>::compile_codegen_unit
[INFO] [stderr]   20:     0x72ffc184312b - rustc_codegen_ssa[3518c9db413fb8ae]::base::codegen_crate::<rustc_codegen_llvm[b06fdb4b5303f71]::LlvmCodegenBackend>
[INFO] [stderr]   21:     0x72ffc184124d - <rustc_codegen_llvm[b06fdb4b5303f71]::LlvmCodegenBackend as rustc_codegen_ssa[3518c9db413fb8ae]::traits::backend::CodegenBackend>::codegen_crate
[INFO] [stderr]   22:     0x72ffc17661f2 - <rustc_interface[871132451cfcc34]::queries::Linker>::codegen_and_build_linker
[INFO] [stderr]   23:     0x72ffc17604a5 - rustc_interface[871132451cfcc34]::interface::run_compiler::<(), rustc_driver_impl[c35a04254f298831]::run_compiler::{closure#0}>::{closure#1}
[INFO] [stderr]   24:     0x72ffc172e044 - std[29689e6404d28ef9]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[871132451cfcc34]::util::run_in_thread_with_globals<rustc_interface[871132451cfcc34]::util::run_in_thread_pool_with_globals<rustc_interface[871132451cfcc34]::interface::run_compiler<(), rustc_driver_impl[c35a04254f298831]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   25:     0x72ffc172e72d - <std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<rustc_interface[871132451cfcc34]::util::run_in_thread_with_globals<rustc_interface[871132451cfcc34]::util::run_in_thread_pool_with_globals<rustc_interface[871132451cfcc34]::interface::run_compiler<(), rustc_driver_impl[c35a04254f298831]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   26:     0x72ffc172f5ac - <std[29689e6404d28ef9]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]   27:     0x72ffbb28aaa4 - <unknown>
[INFO] [stderr]   28:     0x72ffbb317a64 - clone
[INFO] [stderr]   29:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] note: using internal features is not supported and expected to cause internal compiler errors when used incorrectly
[INFO] [stderr] 
[INFO] [stderr] warning: the ICE couldn't be written to `/opt/rustwide/workdir/rustc-ice-2026-05-15T07_10_27-18.txt`: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.97.0-nightly (ec6f9a5b4 2026-04-24) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2
[INFO] [stderr] 
[INFO] [stderr] note: some of the compiler flags provided by cargo are hidden
[INFO] [stderr] 
[INFO] [stderr] query stack during panic:
[INFO] [stderr] end of query stack
[INFO] [stderr] error: could not compile `wonderbox` (lib test); 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/bin/rustc --crate-name wonderbox --edition=2018 src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=c796ff32749d9cbb -C extra-filename=-375a0bd10bffd53d --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --cap-lints=forbid` (exit status: 101)
[INFO] running `Command { std: "docker" "inspect" "ed2f1b3356f504068035eafae832100d43eb5da86a737be3e09ae5e9c7df7add", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ed2f1b3356f504068035eafae832100d43eb5da86a737be3e09ae5e9c7df7add", kill_on_drop: false }`
[INFO] [stdout] ed2f1b3356f504068035eafae832100d43eb5da86a737be3e09ae5e9c7df7add
