[INFO] fetching crate papito 0.1.1... [INFO] testing papito-0.1.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2 [INFO] extracting crate papito 0.1.1 into /workspace/builds/worker-1-tc1/source [INFO] started tweaking crates.io crate papito 0.1.1 [INFO] finished tweaking crates.io crate papito 0.1.1 [INFO] tweaked toml for crates.io crate papito 0.1.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate papito 0.1.1 on toolchain 562dee4820c458d823175268e41601d4c060588a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "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" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 35 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded papito_dom v0.1.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9430a0cbc7a832ee8e94c4ca8e6ed074b866635b52038c4e928cd2848ee40e7d [INFO] running `Command { std: "docker" "start" "-a" "9430a0cbc7a832ee8e94c4ca8e6ed074b866635b52038c4e928cd2848ee40e7d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9430a0cbc7a832ee8e94c4ca8e6ed074b866635b52038c4e928cd2848ee40e7d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9430a0cbc7a832ee8e94c4ca8e6ed074b866635b52038c4e928cd2848ee40e7d", kill_on_drop: false }` [INFO] [stdout] 9430a0cbc7a832ee8e94c4ca8e6ed074b866635b52038c4e928cd2848ee40e7d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0711aa0bee9c2e62f1b60e307db3850875141645b9bba685363f0ecb7114f298 [INFO] running `Command { std: "docker" "start" "-a" "0711aa0bee9c2e62f1b60e307db3850875141645b9bba685363f0ecb7114f298", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling stdweb-internal-runtime v0.1.5 [INFO] [stderr] Compiling sha1_smol v1.0.1 [INFO] [stderr] Compiling base-x v0.2.11 [INFO] [stderr] Compiling discard v1.0.4 [INFO] [stderr] Compiling serde_json v1.0.149 [INFO] [stderr] Compiling sha1 v0.6.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling stdweb v0.4.20 [INFO] [stderr] Compiling stdweb-internal-macros v0.2.9 [INFO] [stderr] Compiling stdweb-derive v0.5.3 [INFO] [stderr] Compiling papito_dom v0.1.1 [INFO] [stderr] Compiling papito v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::ops::Deref` [INFO] [stdout] --> src/lib.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use std::ops::Deref; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `vdom` is never read [INFO] [stdout] --> src/lib.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 18 | pub struct App { [INFO] [stdout] | --- field in this struct [INFO] [stdout] 19 | vdom: VNode, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: internal compiler error: /rustc-dev/562dee4820c458d823175268e41601d4c060588a/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] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/stdweb-0.4.20/src/webcore/type_name.rs:5:9 [INFO] [stdout] | [INFO] [stdout] 5 | intrinsics::type_name::< T >() [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stderr] thread 'rustc' (326) panicked at /rustc-dev/562dee4820c458d823175268e41601d4c060588a/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs:125:21: [INFO] [stderr] Box [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7f993078455b - <::print::DisplayBacktrace as core[fa0eadad68403074]::fmt::Display>::fmt [INFO] [stderr] 1: 0x7f9930e2e8c8 - core[fa0eadad68403074]::fmt::write [INFO] [stderr] 2: 0x7f993079b566 - ::write_fmt [INFO] [stderr] 3: 0x7f993075a568 - std[31e582c13f4e914f]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x7f9930777963 - std[31e582c13f4e914f]::panicking::default_hook [INFO] [stderr] 5: 0x7f992f773dbc - std[31e582c13f4e914f]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x7f9930777c42 - std[31e582c13f4e914f]::panicking::panic_with_hook [INFO] [stderr] 7: 0x7f992f7a3ae1 - std[31e582c13f4e914f]::panicking::begin_panic::::{closure#0} [INFO] [stderr] 8: 0x7f992f79c546 - std[31e582c13f4e914f]::sys::backtrace::__rust_end_short_backtrace::::{closure#0}, !> [INFO] [stderr] 9: 0x7f992f79a3f8 - std[31e582c13f4e914f]::panicking::begin_panic:: [INFO] [stderr] 10: 0x7f992f7af151 - ::emit_producing_guarantee [INFO] [stderr] 11: 0x7f992fd66cac - ::span_bug:: [INFO] [stderr] 12: 0x7f992fd8ec56 - rustc_middle[bc4b12ab5fd100e2]::util::bug::opt_span_bug_fmt::::{closure#0} [INFO] [stderr] 13: 0x7f992fd8ee02 - rustc_middle[bc4b12ab5fd100e2]::ty::context::tls::with_opt::::{closure#0}, !>::{closure#0} [INFO] [stderr] 14: 0x7f992fd7f3db - rustc_middle[bc4b12ab5fd100e2]::ty::context::tls::with_context_opt::::{closure#0}, !>::{closure#0}, !> [INFO] [stderr] 15: 0x7f992e0273e8 - rustc_middle[bc4b12ab5fd100e2]::util::bug::span_bug_fmt:: [INFO] [stderr] 16: 0x7f9931fbd3ed - >>::codegen_intrinsic_call [INFO] [stderr] 17: 0x7f9932256634 - rustc_codegen_ssa[fe4d9ebd2fbd1d4d]::mir::codegen_mir::> [INFO] [stderr] 18: 0x7f9930f8404b - rustc_codegen_llvm[a4a9ab9083920a94]::base::compile_codegen_unit::module_codegen [INFO] [stderr] 19: 0x7f993219adc4 - ::compile_codegen_unit [INFO] [stderr] 20: 0x7f99321969c4 - rustc_codegen_ssa[fe4d9ebd2fbd1d4d]::base::codegen_crate:: [INFO] [stderr] 21: 0x7f9932194ae5 - ::codegen_crate [INFO] [stderr] 22: 0x7f99321376ba - ::codegen_and_build_linker [INFO] [stderr] 23: 0x7f993213224d - rustc_interface[fa77fbe53284b165]::interface::run_compiler::<(), rustc_driver_impl[5d9f716931f6bd73]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 24: 0x7f9932043f3e - std[31e582c13f4e914f]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 25: 0x7f99320447e0 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 26: 0x7f993204566c - ::new::thread_start [INFO] [stderr] 27: 0x7f992ba8aaa4 - [INFO] [stderr] 28: 0x7f992bb17a64 - clone [INFO] [stderr] 29: 0x0 - [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/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/stdweb-0.4.20/rustc-ice-2026-04-19T22_09_24-324.txt`: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] note: rustc 1.96.0-nightly (562dee482 2026-03-21) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: --crate-type lib -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 `stdweb` (lib); 4712 warnings emitted [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/562dee4820c458d823175268e41601d4c060588a/bin/rustc --crate-name stdweb --edition=2015 /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/stdweb-0.4.20/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="default"' --cfg 'feature="serde"' --cfg 'feature="serde_json"' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("default", "docs-rs", "experimental_features_which_may_break_on_minor_version_bumps", "futures-channel-preview", "futures-core-preview", "futures-executor-preview", "futures-support", "futures-util-preview", "nightly", "serde", "serde_json", "web_test"))' -C metadata=22dd65b8f83c9fd9 -C extra-filename=-5672828338ca5f86 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern discard=/opt/rustwide/target/debug/deps/libdiscard-11fc78d17c12a98b.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-c09ed92e1bb1a730.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-9a021ef7d2829b51.rmeta --extern stdweb_derive=/opt/rustwide/target/debug/deps/libstdweb_derive-c3661eb6f38d81d0.so --extern stdweb_internal_macros=/opt/rustwide/target/debug/deps/libstdweb_internal_macros-6fd86215f52904f2.so --extern stdweb_internal_runtime=/opt/rustwide/target/debug/deps/libstdweb_internal_runtime-58efda4ad4253aec.rmeta --cap-lints allow --cap-lints=forbid --cfg rust_nightly` (exit status: 101) [INFO] running `Command { std: "docker" "inspect" "0711aa0bee9c2e62f1b60e307db3850875141645b9bba685363f0ecb7114f298", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0711aa0bee9c2e62f1b60e307db3850875141645b9bba685363f0ecb7114f298", kill_on_drop: false }` [INFO] [stdout] 0711aa0bee9c2e62f1b60e307db3850875141645b9bba685363f0ecb7114f298