[INFO] fetching crate mininn 0.1.4... [INFO] checking mininn-0.1.4 against try#66388cc165a6c4ac98c074dc9f0281ff23528c55 for pr-150727 [INFO] extracting crate mininn 0.1.4 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate mininn 0.1.4 [INFO] removed 0 missing examples [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate mininn 0.1.4 [INFO] tweaked toml for crates.io crate mininn 0.1.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate mininn 0.1.4 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 mininn 0.1.4 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 20c30787eff745bdc3d014734d848caad37f56e02fcaaa1a949cc79b953d9252 [INFO] running `Command { std: "docker" "start" "-a" "20c30787eff745bdc3d014734d848caad37f56e02fcaaa1a949cc79b953d9252", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "20c30787eff745bdc3d014734d848caad37f56e02fcaaa1a949cc79b953d9252", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "20c30787eff745bdc3d014734d848caad37f56e02fcaaa1a949cc79b953d9252", kill_on_drop: false }` [INFO] [stdout] 20c30787eff745bdc3d014734d848caad37f56e02fcaaa1a949cc79b953d9252 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e909a29863a6349d581649462aab579398b656311bad2637d919a4dfd96f8577 [INFO] running `Command { std: "docker" "start" "-a" "e909a29863a6349d581649462aab579398b656311bad2637d919a4dfd96f8577", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.92 [INFO] [stderr] Compiling unicode-ident v1.0.14 [INFO] [stderr] Compiling libm v0.2.11 [INFO] [stderr] Compiling num-traits v0.2.19 [INFO] [stderr] Compiling libc v0.2.168 [INFO] [stderr] Compiling serde v1.0.216 [INFO] [stderr] Compiling matrixmultiply v0.3.9 [INFO] [stderr] Compiling aho-corasick v1.1.3 [INFO] [stderr] Checking smallvec v1.13.2 [INFO] [stderr] Checking rawpointer v0.2.1 [INFO] [stderr] Compiling regex-syntax v0.8.5 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling libloading v0.8.6 [INFO] [stderr] Compiling pkg-config v0.3.31 [INFO] [stderr] Compiling paste v1.0.15 [INFO] [stderr] Compiling equivalent v1.0.1 [INFO] [stderr] Compiling hashbrown v0.15.2 [INFO] [stderr] Checking futures-core v0.3.31 [INFO] [stderr] Compiling winnow v0.6.20 [INFO] [stderr] Compiling toml_datetime v0.6.8 [INFO] [stderr] Compiling quote v1.0.37 [INFO] [stderr] Checking getrandom v0.2.15 [INFO] [stderr] Checking parking_lot_core v0.9.10 [INFO] [stderr] Compiling syn v2.0.90 [INFO] [stderr] Checking rand_core v0.6.4 [INFO] [stderr] Compiling indexmap v2.7.0 [INFO] [stderr] Checking futures-sink v0.3.31 [INFO] [stderr] Checking parking_lot v0.12.3 [INFO] [stderr] Checking futures-channel v0.3.31 [INFO] [stderr] Compiling proc-macro-error-attr2 v2.0.0 [INFO] [stderr] Checking num-complex v0.4.6 [INFO] [stderr] Checking num-integer v0.1.46 [INFO] [stderr] Checking approx v0.4.0 [INFO] [stderr] Checking pin-project-lite v0.2.15 [INFO] [stderr] Compiling hdf5-metno-types v0.10.0 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking ndarray v0.15.6 [INFO] [stderr] Compiling proc-macro-error2 v2.0.1 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Compiling hdf5-metno v0.9.3 [INFO] [stderr] Checking itoa v1.0.14 [INFO] [stderr] Checking adler2 v2.0.0 [INFO] [stderr] Checking ryu v1.0.18 [INFO] [stderr] Compiling linfa v0.7.0 [INFO] [stderr] Checking ascii v1.1.0 [INFO] [stderr] Compiling regex-automata v0.4.9 [INFO] [stderr] Checking miniz_oxide v0.8.2 [INFO] [stderr] Checking rmp v0.8.14 [INFO] [stderr] Compiling toml_edit v0.22.22 [INFO] [stderr] Checking crc32fast v1.4.2 [INFO] [stderr] Checking bitflags v2.6.0 [INFO] [stderr] Checking log v0.4.22 [INFO] [stderr] Checking sdd v3.0.5 [INFO] [stderr] Checking either v1.13.0 [INFO] [stderr] Checking flate2 v1.0.35 [INFO] [stderr] Checking scc v2.2.6 [INFO] [stderr] Checking once_cell v1.20.2 [INFO] [stderr] Checking dyn-clone v1.0.17 [INFO] [stderr] Checking mnist v0.6.0 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Compiling proc-macro-crate v3.2.0 [INFO] [stderr] Compiling regex v1.11.1 [INFO] [stderr] Compiling hdf5-metno-sys v0.10.0 [INFO] [stderr] Compiling serde_derive v1.0.216 [INFO] [stderr] Compiling zerocopy-derive v0.7.35 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling hdf5-metno-derive v0.9.2 [INFO] [stderr] Compiling serial_test_derive v3.2.0 [INFO] [stderr] Compiling mininn-derive v0.1.0 [INFO] [stderr] Checking serial_test v3.2.0 [INFO] [stderr] Checking zerocopy v0.7.35 [INFO] [stderr] Checking thiserror v1.0.69 [INFO] [stderr] Checking ppv-lite86 v0.2.20 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking rand_distr v0.4.3 [INFO] [stderr] Checking ndarray v0.16.1 [INFO] [stderr] Checking csv v1.3.1 [INFO] [stderr] Checking rmp-serde v1.3.0 [INFO] [stderr] Checking ndarray-csv v0.5.1 [INFO] [stderr] Checking sprs v0.11.2 [INFO] [stderr] Checking ndarray-rand v0.15.0 [INFO] [stderr] Checking mininn v0.1.4 (/opt/rustwide/workdir) [INFO] [stderr] Checking linfa-datasets v0.7.0 [INFO] [stdout] warning: struct `BatchNorm` is never constructed [INFO] [stdout] --> src/layers/types/batchnorm.rs:7:19 [INFO] [stdout] | [INFO] [stdout] 7 | pub(crate) struct BatchNorm { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] [INFO] [stdout] warning: enum `Padding` is never used [INFO] [stdout] --> src/layers/types/conv.rs:8:17 [INFO] [stdout] | [INFO] [stdout] 8 | pub(crate) enum Padding { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] thread 'rustc' (1043) panicked at /rustc-dev/66388cc165a6c4ac98c074dc9f0281ff23528c55/compiler/rustc_ast/src/attr/mod.rs:302:36: [INFO] [stdout] warning: struct `Conv` is never constructed [INFO] [stdout] --> src/layers/types/conv.rs:14:19 [INFO] [stdout] | [INFO] [stdout] 14 | pub(crate) struct Conv { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] attribute is missing tokens: Attribute { kind: Normal(NormalAttr { item: AttrItem { unsafety: Default, path: Path { span: src/core/nn.rs:1062:5: 1062:12 (#259), segments: [PathSegment { ident: #259, id: NodeId(4294967040), args: None }], tokens: None }, args: Unparsed(Empty), tokens: None }, tokens: None }), id: AttrId(1371), style: Outer, span: src/core/nn.rs:1062:5: 1062:12 (#259) } [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/layers/types/conv.rs:26:12 [INFO] [stdout] | [INFO] [stdout] 25 | impl Conv { [INFO] [stdout] | --------- associated function in this implementation [INFO] [stdout] 26 | pub fn new( [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] stack backtrace: [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/layers/types/dense.rs:114:20 [INFO] [stdout] | [INFO] [stdout] 114 | pub fn weights(&self) -> ArrayView2 { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 114 | pub fn weights(&self) -> ArrayView2<'_, f32> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/layers/types/dense.rs:120:19 [INFO] [stdout] | [INFO] [stdout] 120 | pub fn biases(&self) -> ArrayView1 { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 120 | pub fn biases(&self) -> ArrayView1<'_, f32> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] 0: 0x75b63fe2bfa3 - <::print::DisplayBacktrace as core[75ca2badb63c4514]::fmt::Display>::fmt [INFO] [stderr] 1: 0x75b64040fb48 - core[75ca2badb63c4514]::fmt::write [INFO] [stderr] 2: 0x75b63fe42226 - ::write_fmt [INFO] [stderr] 3: 0x75b63fe01b98 - std[7d609349af90bec6]::panicking::default_hook::{closure#0} [INFO] [stderr] 4: 0x75b63fe1f833 - std[7d609349af90bec6]::panicking::default_hook [INFO] [stderr] 5: 0x75b63ee0236a - std[7d609349af90bec6]::panicking::update_hook::>::{closure#0} [INFO] [stderr] 6: 0x75b63fe1fb12 - std[7d609349af90bec6]::panicking::panic_with_hook [INFO] [stderr] 7: 0x75b63fe01c58 - std[7d609349af90bec6]::panicking::panic_handler::{closure#0} [INFO] [stderr] 8: 0x75b63fdf89a9 - std[7d609349af90bec6]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stderr] 9: 0x75b63fe0372d - __rustc[69841a6cbc58d81d]::rust_begin_unwind [INFO] [stderr] 10: 0x75b63ca38f9c - core[75ca2badb63c4514]::panicking::panic_fmt [INFO] [stderr] 11: 0x75b6411e0110 - ::token_trees [INFO] [stderr] 12: 0x75b641a1c314 - ::fully_expand_fragment [INFO] [stderr] 13: 0x75b6419e65d2 - ::expand_crate [INFO] [stderr] 14: 0x75b640af0af3 - rustc_interface[903e43df8d6bd657]::passes::configure_and_expand [INFO] [stderr] 15: 0x75b641607658 - rustc_interface[903e43df8d6bd657]::passes::resolver_for_lowering_raw [INFO] [stderr] 16: 0x75b6416073cd - rustc_query_impl[8c5349e00d64015e]::plumbing::__rust_begin_short_backtrace::> [INFO] [stderr] 17: 0x75b6416073a7 - >::call_once [INFO] [stderr] 18: 0x75b6415ecb5f - rustc_query_system[d45be4fb383a0235]::query::plumbing::try_execute_query::>, false, false, false>, rustc_query_impl[8c5349e00d64015e]::plumbing::QueryCtxt, false> [INFO] [stderr] 19: 0x75b6415ec6bc - rustc_query_impl[8c5349e00d64015e]::query_impl::resolver_for_lowering_raw::get_query_non_incr::__rust_end_short_backtrace [INFO] [stderr] 20: 0x75b64177127b - , 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: 0x75b64165ac98 - rustc_interface[903e43df8d6bd657]::interface::run_compiler::<(), rustc_driver_impl[3f9d6dd912ac34bd]::run_compiler::{closure#0}>::{closure#1} [INFO] [stderr] 22: 0x75b6414eac4e - std[7d609349af90bec6]::sys::backtrace::__rust_begin_short_backtrace::::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> [INFO] [stderr] 23: 0x75b6414eaa20 - ::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[75ca2badb63c4514]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stderr] 24: 0x75b6414ed138 - ::new::thread_start [INFO] [stderr] 25: 0x75b63b08aaa4 - [INFO] [stderr] 26: 0x75b63b117a64 - 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-2026-01-08T20_36_35-1041.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 `mininn` (lib test) [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/rustwide/rustup-home/toolchains/66388cc165a6c4ac98c074dc9f0281ff23528c55/bin/rustc --crate-name mininn --edition=2021 src/lib.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=1617773c6bc39529 -C extra-filename=-f9ff9a23d1d104db --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern dyn_clone=/opt/rustwide/target/debug/deps/libdyn_clone-3d77ac7e53a8bf6f.rmeta --extern hdf5=/opt/rustwide/target/debug/deps/libhdf5_metno-f1beaedf7a5bbb03.rmeta --extern linfa_datasets=/opt/rustwide/target/debug/deps/liblinfa_datasets-cd3ae525201cdafb.rmeta --extern mininn_derive=/opt/rustwide/target/debug/deps/libmininn_derive-398b3dcd981f4b00.so --extern mnist=/opt/rustwide/target/debug/deps/libmnist-9126e49641be921b.rmeta --extern ndarray=/opt/rustwide/target/debug/deps/libndarray-f2ef9fd5df0fe624.rmeta --extern ndarray_rand=/opt/rustwide/target/debug/deps/libndarray_rand-cb56f2c2db5e5522.rmeta --extern rmp_serde=/opt/rustwide/target/debug/deps/librmp_serde-034565766b415adc.rmeta --extern serde=/opt/rustwide/target/debug/deps/libserde-b0c8f3f0ff3c9bd0.rmeta --extern serial_test=/opt/rustwide/target/debug/deps/libserial_test-49abbaf656a9d009.rmeta --cap-lints=forbid -L native=/usr/lib/x86_64-linux-gnu/hdf5/serial` (exit status: 101) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "e909a29863a6349d581649462aab579398b656311bad2637d919a4dfd96f8577", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e909a29863a6349d581649462aab579398b656311bad2637d919a4dfd96f8577", kill_on_drop: false }` [INFO] [stdout] e909a29863a6349d581649462aab579398b656311bad2637d919a4dfd96f8577