[INFO] fetching crate squark-stdweb 0.5.0... [INFO] testing squark-stdweb-0.5.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-2 [INFO] extracting crate squark-stdweb 0.5.0 into /workspace/builds/worker-0-tc1/source [INFO] started tweaking crates.io crate squark-stdweb 0.5.0 [INFO] finished tweaking crates.io crate squark-stdweb 0.5.0 [INFO] tweaked toml for crates.io crate squark-stdweb 0.5.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate squark-stdweb 0.5.0 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] Blocking waiting for file lock on package cache [INFO] [stderr] Locking 44 packages to latest compatible versions [INFO] [stderr] Adding squark v0.5.1 (available: v0.7.1) [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] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded stdweb-internal-macros v0.2.9 [INFO] [stderr] Downloaded discard v1.0.4 [INFO] [stderr] Downloaded sha1 v0.6.1 [INFO] [stderr] Downloaded stdweb-internal-runtime v0.1.5 [INFO] [stderr] Downloaded stdweb-derive v0.5.3 [INFO] [stderr] Downloaded squark v0.5.1 [INFO] [stderr] Downloaded stdweb v0.4.20 [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" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e6bdc9a81b4c007e08c85d449464269a64fae70c15f84b2944e07f5750d1c61b [INFO] running `Command { std: "docker" "start" "-a" "e6bdc9a81b4c007e08c85d449464269a64fae70c15f84b2944e07f5750d1c61b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e6bdc9a81b4c007e08c85d449464269a64fae70c15f84b2944e07f5750d1c61b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e6bdc9a81b4c007e08c85d449464269a64fae70c15f84b2944e07f5750d1c61b", kill_on_drop: false }` [INFO] [stdout] e6bdc9a81b4c007e08c85d449464269a64fae70c15f84b2944e07f5750d1c61b [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" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0e03b3118934fcc384622bce915ab124cae10db2f81748025ea0600123d9cc99 [INFO] running `Command { std: "docker" "start" "-a" "0e03b3118934fcc384622bce915ab124cae10db2f81748025ea0600123d9cc99", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling rand_core v0.4.2 [INFO] [stderr] Compiling stdweb-internal-runtime v0.1.5 [INFO] [stderr] Compiling sha1_smol v1.0.1 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling base-x v0.2.11 [INFO] [stderr] Compiling discard v1.0.4 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling syn v2.0.117 [INFO] [stderr] Compiling serde_json v1.0.149 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling uuid v0.6.5 [INFO] [stderr] Compiling sha1 v0.6.1 [INFO] [stderr] Compiling rand v0.5.6 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling stdweb v0.4.20 [INFO] [stderr] Compiling squark v0.5.1 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling stdweb-internal-macros v0.2.9 [INFO] [stderr] Compiling stdweb-derive v0.5.3 [INFO] [stderr] Compiling squark-stdweb v0.5.0 (/opt/rustwide/workdir) [INFO] [stderr] [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] thread 'rustc' (446) 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: 0x78cda0d8455b - <::print::DisplayBacktrace as core[fa0eadad68403074]::fmt::Display>::fmt [INFO] [stderr] 1: 0x78cda142e8c8 - core[fa0eadad68403074]::fmt::write [INFO] [stderr] 2: 0x78cda0d9b566 - ::write_fmt [INFO] [stderr] 3: 0x78cda0d5a568 - std[31e582c13f4e914f]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x78cda0d77963 - std[31e582c13f4e914f]::panicking::default_hook [INFO] [stderr] 5: 0x78cd9fd73dbc - std[31e582c13f4e914f]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x78cda0d77c42 - std[31e582c13f4e914f]::panicking::panic_with_hook [INFO] [stderr] 7: 0x78cd9fda3ae1 - std[31e582c13f4e914f]::panicking::begin_panic::::{closure#0} [INFO] [stderr] 8: 0x78cd9fd9c546 - std[31e582c13f4e914f]::sys::backtrace::__rust_end_short_backtrace::::{closure#0}, !> [INFO] [stderr] 9: 0x78cd9fd9a3f8 - std[31e582c13f4e914f]::panicking::begin_panic:: [INFO] [stderr] 10: 0x78cd9fdaf151 - ::emit_producing_guarantee [INFO] [stderr] 11: 0x78cda0366cac - ::span_bug:: [INFO] [stderr] 12: 0x78cda038ec56 - rustc_middle[bc4b12ab5fd100e2]::util::bug::opt_span_bug_fmt::::{closure#0} [INFO] [stderr] 13: 0x78cda038ee02 - rustc_middle[bc4b12ab5fd100e2]::ty::context::tls::with_opt::::{closure#0}, !>::{closure#0} [INFO] [stderr] 14: 0x78cda037f3db - rustc_middle[bc4b12ab5fd100e2]::ty::context::tls::with_context_opt::::{closure#0}, !>::{closure#0}, !> [INFO] [stderr] 15: 0x78cd9e6273e8 - rustc_middle[bc4b12ab5fd100e2]::util::bug::span_bug_fmt:: [INFO] [stderr] 16: 0x78cda25bd3ed - >>::codegen_intrinsic_call [INFO] [stderr] 17: 0x78cda2856634 - rustc_codegen_ssa[fe4d9ebd2fbd1d4d]::mir::codegen_mir::> [INFO] [stderr] 18: 0x78cda158404b - rustc_codegen_llvm[a4a9ab9083920a94]::base::compile_codegen_unit::module_codegen [INFO] [stderr] 19: 0x78cda279adc4 - ::compile_codegen_unit [INFO] [stderr] 20: 0x78cda27969c4 - rustc_codegen_ssa[fe4d9ebd2fbd1d4d]::base::codegen_crate:: [INFO] [stderr] 21: 0x78cda2794ae5 - ::codegen_crate [INFO] [stderr] 22: 0x78cda27376ba - ::codegen_and_build_linker [INFO] [stderr] 23: 0x78cda273224d - rustc_interface[fa77fbe53284b165]::interface::run_compiler::<(), rustc_driver_impl[5d9f716931f6bd73]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 24: 0x78cda2643f3e - std[31e582c13f4e914f]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 25: 0x78cda26447e0 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[fa0eadad68403074]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 26: 0x78cda264566c - ::new::thread_start [INFO] [stderr] 27: 0x78cd9c08aaa4 - [INFO] [stderr] 28: 0x78cd9c117a64 - 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-2026-04-20T00_18_29-444.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" "0e03b3118934fcc384622bce915ab124cae10db2f81748025ea0600123d9cc99", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0e03b3118934fcc384622bce915ab124cae10db2f81748025ea0600123d9cc99", kill_on_drop: false }` [INFO] [stdout] 0e03b3118934fcc384622bce915ab124cae10db2f81748025ea0600123d9cc99