[INFO] fetching crate dynamic-mcp 1.0.0... [INFO] checking dynamic-mcp-1.0.0 against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727 [INFO] extracting crate dynamic-mcp 1.0.0 into /workspace/builds/worker-2-tc2/source [INFO] started tweaking crates.io crate dynamic-mcp 1.0.0 [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate dynamic-mcp 1.0.0 [INFO] tweaked toml for crates.io crate dynamic-mcp 1.0.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate dynamic-mcp 1.0.0 on toolchain 66388cc165a6c4ac98c074dc9f0281ff23528c55 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate dynamic-mcp 1.0.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b72cf0392ca2b19f860057a5555238d859c9fba320a8e7c7ab296094bb507e61 [INFO] running `Command { std: "docker" "start" "-a" "b72cf0392ca2b19f860057a5555238d859c9fba320a8e7c7ab296094bb507e61", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b72cf0392ca2b19f860057a5555238d859c9fba320a8e7c7ab296094bb507e61", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b72cf0392ca2b19f860057a5555238d859c9fba320a8e7c7ab296094bb507e61", kill_on_drop: false }` [INFO] [stdout] b72cf0392ca2b19f860057a5555238d859c9fba320a8e7c7ab296094bb507e61 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+66388cc165a6c4ac98c074dc9f0281ff23528c55" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b4588981231ba17c6838aee9e355defe44a8569c13e1322f51beb559f4d43674 [INFO] running `Command { std: "docker" "start" "-a" "b4588981231ba17c6838aee9e355defe44a8569c13e1322f51beb559f4d43674", kill_on_drop: false }` [INFO] [stderr] Compiling syn v2.0.113 [INFO] [stderr] Checking parking_lot_core v0.9.12 [INFO] [stderr] Checking socket2 v0.6.1 [INFO] [stderr] Checking mio v1.1.1 [INFO] [stderr] Compiling openssl-sys v0.9.109 [INFO] [stderr] Checking ring v0.17.14 [INFO] [stderr] Checking serde_json v1.0.148 [INFO] [stderr] Compiling rustls v0.21.12 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Checking socket2 v0.5.10 [INFO] [stderr] Compiling zmij v1.0.12 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Checking is-docker v0.2.0 [INFO] [stderr] Compiling schemars v0.8.22 [INFO] [stderr] Compiling rustix v1.1.3 [INFO] [stderr] Checking inotify v0.9.6 [INFO] [stderr] Checking is-wsl v0.4.0 [INFO] [stderr] Checking dirs-sys v0.4.1 [INFO] [stderr] Checking serde_path_to_error v0.1.20 [INFO] [stderr] Checking parking_lot v0.12.5 [INFO] [stderr] Checking mio v0.8.11 [INFO] [stderr] Checking filetime v0.2.26 [INFO] [stderr] Compiling pastey v0.2.1 [INFO] [stderr] Checking pathdiff v0.2.3 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking dirs v5.0.1 [INFO] [stderr] Checking open v5.3.3 [INFO] [stderr] Checking uuid v1.19.0 [INFO] [stderr] Compiling openssl v0.10.73 [INFO] [stderr] Compiling native-tls v0.2.14 [INFO] [stderr] Checking notify v6.1.1 [INFO] [stderr] Checking sct v0.7.1 [INFO] [stderr] Checking rustls-webpki v0.101.7 [INFO] [stderr] Checking rustls-webpki v0.103.8 [INFO] [stderr] Checking rustls v0.23.36 [INFO] [stderr] Checking tempfile v3.24.0 [INFO] [stderr] Compiling synstructure v0.13.2 [INFO] [stderr] Compiling serde_derive_internals v0.29.1 [INFO] [stderr] Compiling darling_core v0.23.0 [INFO] [stderr] Compiling tokio-macros v2.6.0 [INFO] [stderr] Compiling zerofrom-derive v0.1.6 [INFO] [stderr] Compiling yoke-derive v0.8.1 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling zerovec-derive v0.11.2 [INFO] [stderr] Compiling tracing-attributes v0.1.31 [INFO] [stderr] Compiling displaydoc v0.2.5 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling ref-cast-impl v1.0.25 [INFO] [stderr] Compiling thiserror-impl v2.0.17 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling async-trait v0.1.89 [INFO] [stderr] Compiling clap_derive v4.5.49 [INFO] [stderr] Compiling schemars_derive v1.2.0 [INFO] [stderr] Checking ref-cast v1.0.25 [INFO] [stderr] Compiling schemars_derive v0.8.22 [INFO] [stderr] Compiling serial_test_derive v3.3.1 [INFO] [stderr] Checking tokio v1.49.0 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking thiserror v1.0.69 [INFO] [stderr] Checking tracing v0.1.44 [INFO] [stderr] Checking zerofrom v0.1.6 [INFO] [stderr] Checking clap v4.5.54 [INFO] [stderr] Checking thiserror v2.0.17 [INFO] [stderr] Checking yoke v0.8.1 [INFO] [stderr] Checking tracing-subscriber v0.3.22 [INFO] [stderr] Checking zerovec v0.11.5 [INFO] [stderr] Checking zerotrie v0.2.3 [INFO] [stderr] Compiling darling_macro v0.23.0 [INFO] [stderr] Compiling darling v0.23.0 [INFO] [stderr] Checking tinystr v0.8.2 [INFO] [stderr] Checking potential_utf v0.1.4 [INFO] [stderr] Compiling rmcp-macros v0.12.0 [INFO] [stderr] Checking icu_locale_core v2.1.1 [INFO] [stderr] Checking icu_collections v2.1.1 [INFO] [stderr] Checking serde v1.0.228 [INFO] [stderr] Checking icu_provider v2.1.1 [INFO] [stderr] Checking serde_urlencoded v0.7.1 [INFO] [stderr] Checking chrono v0.4.42 [INFO] [stderr] Checking indexmap v1.9.3 [INFO] [stderr] Checking rust-mcp-schema v0.9.4 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking sse-stream v0.2.1 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Checking serial_test v3.3.1 [INFO] [stderr] Checking icu_properties v2.1.2 [INFO] [stderr] Checking icu_normalizer v2.1.1 [INFO] [stderr] Checking idna_adapter v1.2.1 [INFO] [stderr] Checking idna v1.1.0 [INFO] [stderr] Checking schemars v1.2.0 [INFO] [stderr] Checking url v2.5.8 [INFO] [stderr] Checking tokio-util v0.7.18 [INFO] [stderr] Checking tokio-rustls v0.26.4 [INFO] [stderr] Checking tokio-native-tls v0.3.1 [INFO] [stderr] Checking tokio-rustls v0.24.1 [INFO] [stderr] Checking tower v0.5.2 [INFO] [stderr] Checking tokio-stream v0.1.18 [INFO] [stderr] Checking tower-http v0.6.8 [INFO] [stderr] Checking tokio-test v0.4.5 [INFO] [stderr] Checking h2 v0.4.10 [INFO] [stderr] Checking h2 v0.3.27 [INFO] [stderr] Checking hyper v0.14.32 [INFO] [stderr] Checking hyper v1.8.1 [INFO] [stderr] Checking hyper-util v0.1.19 [INFO] [stderr] Checking hyper-rustls v0.24.2 [INFO] [stderr] Checking hyper-rustls v0.27.7 [INFO] [stderr] Checking hyper-tls v0.6.0 [INFO] [stderr] Checking reqwest v0.11.27 [INFO] [stderr] Checking reqwest v0.12.28 [INFO] [stderr] Checking oauth2 v4.4.2 [INFO] [stderr] Checking rmcp v0.12.0 [INFO] [stderr] Checking dynamic-mcp v1.0.0 (/opt/rustwide/workdir) [INFO] [stderr] [INFO] [stderr] thread 'rustc' (1454) panicked at /rustc-dev/66388cc165a6c4ac98c074dc9f0281ff23528c55/compiler/rustc_ast/src/attr/mod.rs:302:36: [INFO] [stderr] attribute is missing tokens: Attribute { kind: Normal(NormalAttr { item: AttrItem { unsafety: Default, path: Path { span: src/main.rs:276:5: 276:12 (#2011), segments: [PathSegment { ident: #2011, id: NodeId(4294967040), args: None }], tokens: None }, args: Unparsed(Empty), tokens: None }, tokens: None }), id: AttrId(862), style: Outer, span: src/main.rs:276:5: 276:12 (#2011) } [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7ecf37a2bfa3 - <::print::DisplayBacktrace as core[75ca2badb63c4514]::fmt::Display>::fmt [INFO] [stderr] 1: 0x7ecf3800fb48 - core[75ca2badb63c4514]::fmt::write [INFO] [stderr] 2: 0x7ecf37a42226 - ::write_fmt [INFO] [stderr] 3: 0x7ecf37a01b98 - std[7d609349af90bec6]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x7ecf37a1f833 - std[7d609349af90bec6]::panicking::default_hook [INFO] [stderr] 5: 0x7ecf36a0236a - std[7d609349af90bec6]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x7ecf37a1fb12 - std[7d609349af90bec6]::panicking::panic_with_hook [INFO] [stderr] 7: 0x7ecf37a01c58 - std[7d609349af90bec6]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x7ecf379f89a9 - std[7d609349af90bec6]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x7ecf37a0372d - __rustc[69841a6cbc58d81d]::rust_begin_unwind [INFO] [stderr] 10: 0x7ecf34638f9c - core[75ca2badb63c4514]::panicking::panic_fmt [INFO] [stderr] 11: 0x7ecf38de0110 - ::token_trees [INFO] [stderr] 12: 0x7ecf3961c314 - ::fully_expand_fragment [INFO] [stderr] 13: 0x7ecf395e65d2 - ::expand_crate [INFO] [stderr] 14: 0x7ecf386f0af3 - rustc_interface[903e43df8d6bd657]::passes::configure_and_expand [INFO] [stderr] 15: 0x7ecf39207658 - rustc_interface[903e43df8d6bd657]::passes::resolver_for_lowering_raw [INFO] [stderr] 16: 0x7ecf392073cd - rustc_query_impl[8c5349e00d64015e]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 17: 0x7ecf392073a7 - >::call_once [INFO] [stderr] 18: 0x7ecf391ecb5f - rustc_query_system[d45be4fb383a0235]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[8c5349e00d64015e]::plumbing::QueryCtxt, false> [INFO] [stderr] 19: 0x7ecf391ec6bc - rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 20: 0x7ecf3937127b - , rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}::{closure#2}>::{closure#2} as core[75ca2badb63c4514]::ops::function::FnOnce<(&rustc_session[1e6875ba352dc1ba]::session::Session, rustc_middle[2342951a64deba5]::ty::context::CurrentGcx, alloc[d7482eb0f1d19161]::sync::Arc, &std[7d609349af90bec6]::sync::once_lock::OnceLock, &rustc_data_structures[c82a87ce5cdbfc92]::sync::worker_local::WorkerLocal, &rustc_data_structures[c82a87ce5cdbfc92]::sync::worker_local::WorkerLocal, rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}::{closure#2})>>::call_once::{shim:vtable#0} [INFO] [stderr] 21: 0x7ecf3925ac98 - rustc_interface[903e43df8d6bd657]::interface::run_compiler::<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 22: 0x7ecf390eac4e - std[7d609349af90bec6]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 23: 0x7ecf390eaa20 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[75ca2badb63c4514]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 24: 0x7ecf390ed138 - ::new::thread_start [INFO] [stderr] 25: 0x7ecf32c8aaa4 - [INFO] [stderr] 26: 0x7ecf32d17a64 - clone [INFO] [stderr] 27: 0x0 - [INFO] [stderr] [INFO] [stderr] error: the compiler unexpectedly panicked. this is a bug. [INFO] [stderr] [INFO] [stderr] note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md [INFO] [stderr] [INFO] [stderr] note: please make sure that you have updated to the latest nightly [INFO] [stderr] [INFO] [stderr] warning: the ICE couldn't be written to `/opt/rustwide/workdir/rustc-ice-2026-01-08T18_31_16-1446.txt`: Read-only file system (os error 30) [INFO] [stderr] [INFO] [stderr] note: rustc 1.94.0-nightly (66388cc16 2026-01-08) 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] #0 [resolver_for_lowering_raw] getting the resolver for lowering [INFO] [stderr] end of query stack [INFO] [stderr] error: could not compile `dynamic-mcp` (bin "dynamic-mcp" test) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/66388cc165a6c4ac98c074dc9f0281ff23528c55/bin/rustc --crate-name dynamic_mcp --edition=2021 src/main.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --emit=dep-info,metadata -C embed-bitcode=no -C debuginfo=2 --test --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values())' -C metadata=d732dc804ade538e -C extra-filename=-c2cba6b90ab8ddb1 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-5cf73cd768c5f646.rmeta --extern async_trait=/opt/rustwide/target/debug/deps/libasync_trait-09cb2ad6eec66e9d.so --extern bytes=/opt/rustwide/target/debug/deps/libbytes-1733fcdb13354ed1.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-c82e05417bde2427.rmeta --extern clap=/opt/rustwide/target/debug/deps/libclap-8488cf3d8c039581.rmeta --extern dirs=/opt/rustwide/target/debug/deps/libdirs-bac79fe75d7bb2f8.rmeta --extern futures=/opt/rustwide/target/debug/deps/libfutures-65bbb24c8da50454.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-466f30a72ee38f71.rmeta --extern notify=/opt/rustwide/target/debug/deps/libnotify-17635099ebac3cff.rmeta --extern oauth2=/opt/rustwide/target/debug/deps/liboauth2-26098c79f8a3b7e9.rmeta --extern open=/opt/rustwide/target/debug/deps/libopen-e54c1617b842e0fc.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-a8ce60b0b51564fd.rmeta --extern reqwest=/opt/rustwide/target/debug/deps/libreqwest-4ff8f3c965765b73.rmeta --extern rmcp=/opt/rustwide/target/debug/deps/librmcp-bbd095a65de722c8.rmeta --extern rust_mcp_schema=/opt/rustwide/target/debug/deps/librust_mcp_schema-15423c75c0b3661f.rmeta --extern schemars=/opt/rustwide/target/debug/deps/libschemars-67c10a7aa4369349.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-42fc81909f144c49.rmeta --extern serde_json=/opt/rustwide/target/debug/deps/libserde_json-cff21f92f501288d.rmeta --extern serial_test=/opt/rustwide/target/debug/deps/libserial_test-8fd987d2d17a3dbc.rmeta --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-a52f0c8dc8ec6dcd.rmeta --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-8aa2f83bd552e789.rmeta --extern tokio=/opt/rustwide/target/debug/deps/libtokio-cfa6418eed03a882.rmeta --extern tokio_test=/opt/rustwide/target/debug/deps/libtokio_test-17d026294d043db7.rmeta --extern tokio_util=/opt/rustwide/target/debug/deps/libtokio_util-817cc4430e594b52.rmeta --extern tracing=/opt/rustwide/target/debug/deps/libtracing-33b3b124bda35039.rmeta --extern tracing_subscriber=/opt/rustwide/target/debug/deps/libtracing_subscriber-b261018b61780d85.rmeta --extern url=/opt/rustwide/target/debug/deps/liburl-8975b4b29d429ece.rmeta --extern uuid=/opt/rustwide/target/debug/deps/libuuid-ae8f1d233da75ad1.rmeta --cap-lints=forbid -L native=/opt/rustwide/target/debug/build/ring-dd0411beaa0ba2fa/out` (exit status: 101) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "b4588981231ba17c6838aee9e355defe44a8569c13e1322f51beb559f4d43674", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b4588981231ba17c6838aee9e355defe44a8569c13e1322f51beb559f4d43674", kill_on_drop: false }` [INFO] [stdout] b4588981231ba17c6838aee9e355defe44a8569c13e1322f51beb559f4d43674