[INFO] fetching crate wonderbox 0.5.0...
[INFO] testing wonderbox-0.5.0 against try#33835004928d3bf65db4d4712e1330766263b0bd for pr-155739-1
[INFO] extracting crate wonderbox 0.5.0 into /workspace/builds/worker-0-tc2/source
[INFO] removed /workspace/builds/worker-0-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate wonderbox 0.5.0 on toolchain 33835004928d3bf65db4d4712e1330766263b0bd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "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" "+33835004928d3bf65db4d4712e1330766263b0bd" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3885bc430065a16fc18637e18510db7ddeb7fb02c196f5534231c477d185da4d
[INFO] running `Command { std: "docker" "start" "-a" "3885bc430065a16fc18637e18510db7ddeb7fb02c196f5534231c477d185da4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3885bc430065a16fc18637e18510db7ddeb7fb02c196f5534231c477d185da4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3885bc430065a16fc18637e18510db7ddeb7fb02c196f5534231c477d185da4d", kill_on_drop: false }`
[INFO] [stdout] 3885bc430065a16fc18637e18510db7ddeb7fb02c196f5534231c477d185da4d
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c49206405d41841e121be86773f6ca4b28cd0b6fbaf1a65fdb1b06cb34ebd30
[INFO] running `Command { std: "docker" "start" "-a" "8c49206405d41841e121be86773f6ca4b28cd0b6fbaf1a65fdb1b06cb34ebd30", 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 0.68s
[INFO] running `Command { std: "docker" "inspect" "8c49206405d41841e121be86773f6ca4b28cd0b6fbaf1a65fdb1b06cb34ebd30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c49206405d41841e121be86773f6ca4b28cd0b6fbaf1a65fdb1b06cb34ebd30", kill_on_drop: false }`
[INFO] [stdout] 8c49206405d41841e121be86773f6ca4b28cd0b6fbaf1a65fdb1b06cb34ebd30
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+33835004928d3bf65db4d4712e1330766263b0bd" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6fc38f8152583c6d2095a49e93536541a2586c1d6e7a5a62162b845c290a674
[INFO] running `Command { std: "docker" "start" "-a" "b6fc38f8152583c6d2095a49e93536541a2586c1d6e7a5a62162b845c290a674", kill_on_drop: false }`
[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]    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] error: internal compiler error: /rustc-dev/33835004928d3bf65db4d4712e1330766263b0bd/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/33835004928d3bf65db4d4712e1330766263b0bd/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs:125:21:
[INFO] [stderr] Box<dyn Any>
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7db32fe2043b - <<std[ec419fa8110287d5]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[35159d6ffb30e017]::fmt::Display>::fmt
[INFO] [stderr]    1:     0x7db33042ccc8 - core[35159d6ffb30e017]::fmt::write
[INFO] [stderr]    2:     0x7db32fe37076 - <std[ec419fa8110287d5]::sys::stdio::unix::Stderr as std[ec419fa8110287d5]::io::Write>::write_fmt
[INFO] [stderr]    3:     0x7db32fdf66b8 - std[ec419fa8110287d5]::panicking::default_hook::{closure#0}
[INFO] [stderr]    4:     0x7db32fe13aa3 - std[ec419fa8110287d5]::panicking::default_hook
[INFO] [stderr]    5:     0x7db32edd3a6c - std[ec419fa8110287d5]::panicking::update_hook::<alloc[a8a7aba520129d98]::boxed::Box<rustc_driver_impl[3450f068fe9ec6e2]::install_ice_hook::{closure#1}>>::{closure#0}
[INFO] [stderr]    6:     0x7db32fe13d82 - std[ec419fa8110287d5]::panicking::panic_with_hook
[INFO] [stderr]    7:     0x7db32ee03201 - std[ec419fa8110287d5]::panicking::begin_panic::<rustc_errors[cdfd8cb2a0ca6349]::ExplicitBug>::{closure#0}
[INFO] [stderr]    8:     0x7db32edfbee6 - std[ec419fa8110287d5]::sys::backtrace::__rust_end_short_backtrace::<std[ec419fa8110287d5]::panicking::begin_panic<rustc_errors[cdfd8cb2a0ca6349]::ExplicitBug>::{closure#0}, !>
[INFO] [stderr]    9:     0x7db32edfbc4b - std[ec419fa8110287d5]::panicking::begin_panic::<rustc_errors[cdfd8cb2a0ca6349]::ExplicitBug>
[INFO] [stderr]   10:     0x7db32ee0e541 - <rustc_errors[cdfd8cb2a0ca6349]::diagnostic::BugAbort as rustc_errors[cdfd8cb2a0ca6349]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
[INFO] [stderr]   11:     0x7db32f3e279c - <rustc_errors[cdfd8cb2a0ca6349]::DiagCtxtHandle>::span_bug::<rustc_span[f3f1c4e0b65b702a]::span_encoding::Span, alloc[a8a7aba520129d98]::string::String>
[INFO] [stderr]   12:     0x7db32f40c8c6 - rustc_middle[585b4d2cc76225e4]::util::bug::opt_span_bug_fmt::<rustc_span[f3f1c4e0b65b702a]::span_encoding::Span>::{closure#0}
[INFO] [stderr]   13:     0x7db32f40ca72 - rustc_middle[585b4d2cc76225e4]::ty::context::tls::with_opt::<rustc_middle[585b4d2cc76225e4]::util::bug::opt_span_bug_fmt<rustc_span[f3f1c4e0b65b702a]::span_encoding::Span>::{closure#0}, !>::{closure#0}
[INFO] [stderr]   14:     0x7db32f3fd16b - rustc_middle[585b4d2cc76225e4]::ty::context::tls::with_context_opt::<rustc_middle[585b4d2cc76225e4]::ty::context::tls::with_opt<rustc_middle[585b4d2cc76225e4]::util::bug::opt_span_bug_fmt<rustc_span[f3f1c4e0b65b702a]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
[INFO] [stderr]   15:     0x7db32cd57618 - rustc_middle[585b4d2cc76225e4]::util::bug::span_bug_fmt::<rustc_span[f3f1c4e0b65b702a]::span_encoding::Span>
[INFO] [stderr]   16:     0x7db33148b4e1 - <rustc_codegen_ssa[b2a8a3c5aebf5e2d]::mir::FunctionCx<rustc_codegen_llvm[f74b7f770cc59bc8]::builder::GenericBuilder<rustc_codegen_llvm[f74b7f770cc59bc8]::context::FullCx>>>::codegen_intrinsic_call
[INFO] [stderr]   17:     0x7db3317cd748 - rustc_codegen_ssa[b2a8a3c5aebf5e2d]::mir::codegen_mir::<rustc_codegen_llvm[f74b7f770cc59bc8]::builder::GenericBuilder<rustc_codegen_llvm[f74b7f770cc59bc8]::context::FullCx>>
[INFO] [stderr]   18:     0x7db33052cb46 - rustc_codegen_llvm[f74b7f770cc59bc8]::base::compile_codegen_unit::module_codegen
[INFO] [stderr]   19:     0x7db331696f49 - <rustc_codegen_llvm[f74b7f770cc59bc8]::LlvmCodegenBackend as rustc_codegen_ssa[b2a8a3c5aebf5e2d]::traits::backend::ExtraBackendMethods>::compile_codegen_unit
[INFO] [stderr]   20:     0x7db331692d00 - rustc_codegen_ssa[b2a8a3c5aebf5e2d]::base::codegen_crate::<rustc_codegen_llvm[f74b7f770cc59bc8]::LlvmCodegenBackend>
[INFO] [stderr]   21:     0x7db331690e0d - <rustc_codegen_llvm[f74b7f770cc59bc8]::LlvmCodegenBackend as rustc_codegen_ssa[b2a8a3c5aebf5e2d]::traits::backend::CodegenBackend>::codegen_crate
[INFO] [stderr]   22:     0x7db3315beeb2 - <rustc_interface[cae40a55e3d5f092]::queries::Linker>::codegen_and_build_linker
[INFO] [stderr]   23:     0x7db3315b9165 - rustc_interface[cae40a55e3d5f092]::interface::run_compiler::<(), rustc_driver_impl[3450f068fe9ec6e2]::run_compiler::{closure#0}>::{closure#1}
[INFO] [stderr]   24:     0x7db331584fc4 - std[ec419fa8110287d5]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[cae40a55e3d5f092]::util::run_in_thread_with_globals<rustc_interface[cae40a55e3d5f092]::util::run_in_thread_pool_with_globals<rustc_interface[cae40a55e3d5f092]::interface::run_compiler<(), rustc_driver_impl[3450f068fe9ec6e2]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
[INFO] [stderr]   25:     0x7db3315856ad - <std[ec419fa8110287d5]::thread::lifecycle::spawn_unchecked<rustc_interface[cae40a55e3d5f092]::util::run_in_thread_with_globals<rustc_interface[cae40a55e3d5f092]::util::run_in_thread_pool_with_globals<rustc_interface[cae40a55e3d5f092]::interface::run_compiler<(), rustc_driver_impl[3450f068fe9ec6e2]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[35159d6ffb30e017]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   26:     0x7db33158652c - <std[ec419fa8110287d5]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]   27:     0x7db32b08aaa4 - <unknown>
[INFO] [stderr]   28:     0x7db32b117a64 - 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_39-18.txt`: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.97.0-nightly (338350049 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/33835004928d3bf65db4d4712e1330766263b0bd/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" "b6fc38f8152583c6d2095a49e93536541a2586c1d6e7a5a62162b845c290a674", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6fc38f8152583c6d2095a49e93536541a2586c1d6e7a5a62162b845c290a674", kill_on_drop: false }`
[INFO] [stdout] b6fc38f8152583c6d2095a49e93536541a2586c1d6e7a5a62162b845c290a674
