[INFO] fetching crate mdc-yew 0.1.1... [INFO] testing mdc-yew-0.1.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1 [INFO] extracting crate mdc-yew 0.1.1 into /workspace/builds/worker-5-tc2/source [INFO] started tweaking crates.io crate mdc-yew 0.1.1 [INFO] finished tweaking crates.io crate mdc-yew 0.1.1 [INFO] tweaked toml for crates.io crate mdc-yew 0.1.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate mdc-yew 0.1.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 73 packages to latest compatible versions [INFO] [stderr] Adding bincode v1.0.1 (available: v1.3.3) [INFO] [stderr] Adding ryu v1.0.0 (available: v1.0.23) [INFO] [stderr] Adding yew v0.10.0 (available: v0.23.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0a930609c7ee73ca3ce9c0666b7628acb95df46e18397791f4f2359c67901f2b [INFO] running `Command { std: "docker" "start" "-a" "0a930609c7ee73ca3ce9c0666b7628acb95df46e18397791f4f2359c67901f2b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0a930609c7ee73ca3ce9c0666b7628acb95df46e18397791f4f2359c67901f2b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a930609c7ee73ca3ce9c0666b7628acb95df46e18397791f4f2359c67901f2b", kill_on_drop: false }` [INFO] [stdout] 0a930609c7ee73ca3ce9c0666b7628acb95df46e18397791f4f2359c67901f2b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4b5cb9b1a78df5c8dd4cc480b156e8fa7999349e809f924195d7d97345895064 [INFO] running `Command { std: "docker" "start" "-a" "4b5cb9b1a78df5c8dd4cc480b156e8fa7999349e809f924195d7d97345895064", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.106 [INFO] [stderr] Compiling unicode-ident v1.0.24 [INFO] [stderr] Compiling quote v1.0.45 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling wasm-bindgen-shared v0.2.117 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Compiling libc v0.2.184 [INFO] [stderr] Compiling autocfg v1.5.0 [INFO] [stderr] Compiling rustversion v1.0.22 [INFO] [stderr] Compiling cfg-if v1.0.4 [INFO] [stderr] Compiling memchr v2.8.0 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling bumpalo v3.20.2 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling zmij v1.0.21 [INFO] [stderr] Compiling slab v0.4.12 [INFO] [stderr] Compiling object v0.37.3 [INFO] [stderr] Compiling serde_json v1.0.149 [INFO] [stderr] Compiling itoa v1.0.18 [INFO] [stderr] Compiling futures-task v0.3.32 [INFO] [stderr] Compiling once_cell v1.21.4 [INFO] [stderr] Compiling sha1_smol v1.0.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling pin-project-lite v0.2.17 [INFO] [stderr] Compiling adler2 v2.0.1 [INFO] [stderr] Compiling gimli v0.32.3 [INFO] [stderr] Compiling futures-core v0.3.32 [INFO] [stderr] Compiling failure_derive v0.1.8 [INFO] [stderr] Compiling autocfg v0.1.8 [INFO] [stderr] Compiling proc-macro-hack v0.5.20+deprecated [INFO] [stderr] Compiling stdweb-internal-runtime v0.1.5 [INFO] [stderr] Compiling futures-util v0.3.32 [INFO] [stderr] Compiling sha1 v0.6.1 [INFO] [stderr] Compiling miniz_oxide v0.8.9 [INFO] [stderr] Compiling base-x v0.2.11 [INFO] [stderr] Compiling rustc-demangle v0.1.27 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling yew-macro v0.10.0 [INFO] [stderr] Compiling indexmap v1.9.3 [INFO] [stderr] Compiling proc-macro-nested v0.1.7 [INFO] [stderr] Compiling stdweb v0.4.20 [INFO] [stderr] Compiling discard v1.0.4 [INFO] [stderr] Compiling boolinator v2.4.0 [INFO] [stderr] Compiling yew v0.10.0 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling wasm-bindgen v0.2.117 [INFO] [stderr] Compiling lazy_static v1.5.0 [INFO] [stderr] Compiling hashbrown v0.12.3 [INFO] [stderr] Compiling syn v2.0.117 [INFO] [stderr] Compiling anymap v0.12.1 [INFO] [stderr] Compiling log v0.4.29 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling bytes v0.4.12 [INFO] [stderr] Compiling http v0.1.21 [INFO] [stderr] Compiling addr2line v0.25.1 [INFO] [stderr] Compiling backtrace v0.3.76 [INFO] [stderr] Compiling synstructure v0.12.6 [INFO] [stderr] Compiling failure v0.1.8 [INFO] [stderr] Compiling wasm-bindgen-macro-support v0.2.117 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling wasm-bindgen-macro v0.2.117 [INFO] [stderr] Compiling bincode v1.0.1 [INFO] [stderr] Compiling stdweb-internal-macros v0.2.9 [INFO] [stderr] Compiling stdweb-derive v0.5.3 [INFO] [stderr] Compiling js-sys v0.3.94 [INFO] [stderr] Compiling web-sys v0.3.94 [INFO] [stdout] error: internal compiler error: /rustc-dev/dec9417b8611e34e787a3e4c37686b5131f9e5c5/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' (1492) panicked at /rustc-dev/dec9417b8611e34e787a3e4c37686b5131f9e5c5/compiler/rustc_codegen_ssa/src/mir/intrinsic.rs:125:21: [INFO] [stderr] Box [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x76c48eb9535b - <::print::DisplayBacktrace as core[6aaeda2c7ad07a48]::fmt::Display>::fmt [INFO] [stderr] 1: 0x76c48f22f248 - core[6aaeda2c7ad07a48]::fmt::write [INFO] [stderr] 2: 0x76c48ebac366 - ::write_fmt [INFO] [stderr] 3: 0x76c48eb6b368 - std[e72de78501789eb0]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x76c48eb88763 - std[e72de78501789eb0]::panicking::default_hook [INFO] [stderr] 5: 0x76c48db8566c - std[e72de78501789eb0]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x76c48eb88a42 - std[e72de78501789eb0]::panicking::panic_with_hook [INFO] [stderr] 7: 0x76c48dbb4cf1 - std[e72de78501789eb0]::panicking::begin_panic::::{closure#0} [INFO] [stderr] 8: 0x76c48dbad9d6 - std[e72de78501789eb0]::sys::backtrace::__rust_end_short_backtrace::::{closure#0}, !> [INFO] [stderr] 9: 0x76c48dbad73b - std[e72de78501789eb0]::panicking::begin_panic:: [INFO] [stderr] 10: 0x76c48dbc0361 - ::emit_producing_guarantee [INFO] [stderr] 11: 0x76c48e177d2c - ::span_bug:: [INFO] [stderr] 12: 0x76c48e19f8b6 - rustc_middle[ff930705cf6dddea]::util::bug::opt_span_bug_fmt::::{closure#0} [INFO] [stderr] 13: 0x76c48e19fa62 - rustc_middle[ff930705cf6dddea]::ty::context::tls::with_opt::::{closure#0}, !>::{closure#0} [INFO] [stderr] 14: 0x76c48e19053b - rustc_middle[ff930705cf6dddea]::ty::context::tls::with_context_opt::::{closure#0}, !>::{closure#0}, !> [INFO] [stderr] 15: 0x76c48baaa558 - rustc_middle[ff930705cf6dddea]::util::bug::span_bug_fmt:: [INFO] [stderr] 16: 0x76c4903a35c1 - >>::codegen_intrinsic_call [INFO] [stderr] 17: 0x76c49063e659 - rustc_codegen_ssa[68f765257a4d07e0]::mir::codegen_mir::> [INFO] [stderr] 18: 0x76c48f3ce90b - rustc_codegen_llvm[c00be91cbe6075b0]::base::compile_codegen_unit::module_codegen [INFO] [stderr] 19: 0x76c490561484 - ::compile_codegen_unit [INFO] [stderr] 20: 0x76c49055d059 - rustc_codegen_ssa[68f765257a4d07e0]::base::codegen_crate:: [INFO] [stderr] 21: 0x76c49055b125 - ::codegen_crate [INFO] [stderr] 22: 0x76c49050693a - ::codegen_and_build_linker [INFO] [stderr] 23: 0x76c4905014cd - rustc_interface[8fb07a87386d2e99]::interface::run_compiler::<(), rustc_driver_impl[1568c1d64401f343]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 24: 0x76c49041e87e - std[e72de78501789eb0]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 25: 0x76c49041f120 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 26: 0x76c49041ffac - ::new::thread_start [INFO] [stderr] 27: 0x76c489e54aa4 - [INFO] [stderr] 28: 0x76c489ee1a64 - 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-2026-04-10T09_42_09-1490.txt`: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] note: rustc 1.96.0-nightly (dec9417b8 2026-03-22) 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/dec9417b8611e34e787a3e4c37686b5131f9e5c5/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=98376f1a50756c91 -C extra-filename=-25bd956522fbbf7d --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-f7599c46ac25e318.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-9a021ef7d2829b51.rmeta --extern stdweb_derive=/opt/rustwide/target/debug/deps/libstdweb_derive-578e346b58656f8d.so --extern stdweb_internal_macros=/opt/rustwide/target/debug/deps/libstdweb_internal_macros-1cfed58838226c8e.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] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "4b5cb9b1a78df5c8dd4cc480b156e8fa7999349e809f924195d7d97345895064", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b5cb9b1a78df5c8dd4cc480b156e8fa7999349e809f924195d7d97345895064", kill_on_drop: false }` [INFO] [stdout] 4b5cb9b1a78df5c8dd4cc480b156e8fa7999349e809f924195d7d97345895064