[INFO] fetching crate webdataset 0.0.1...
[INFO] testing webdataset-0.0.1 against 1.99.0-beta.8 for beta-1.100-2
[INFO] extracting crate webdataset 0.0.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate webdataset 0.0.1
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate webdataset 0.0.1
[INFO] tweaked toml for crates.io crate webdataset 0.0.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate webdataset 0.0.1 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate webdataset 0.0.1 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" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded webdataset-tenbin v0.0.1
[INFO] [stderr]   Downloaded webdataset-core v0.0.1
[INFO] [stderr]   Downloaded zune-core v0.5.3
[INFO] [stderr]   Downloaded zstd-safe v7.3.0
[INFO] [stderr]   Downloaded gcd v2.3.0
[INFO] [stderr]   Downloaded imgref v1.12.3
[INFO] [stderr]   Downloaded webdataset-io v0.0.1
[INFO] [stderr]   Downloaded compression-codecs v0.4.41
[INFO] [stderr]   Downloaded criterion-plot v0.6.0
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.57
[INFO] [stderr]   Downloaded webdataset-shard v0.0.1
[INFO] [stderr]   Downloaded zstd-safe v8.0.0
[INFO] [stderr]   Downloaded liblzma v0.4.8
[INFO] [stderr]   Downloaded zstd v0.14.0
[INFO] [stderr]   Downloaded turbojpeg v1.5.1
[INFO] [stderr]   Downloaded async-compression v0.4.46
[INFO] [stderr]   Downloaded criterion v0.7.0
[INFO] [stderr]   Downloaded zerocopy v0.8.57
[INFO] [stderr]   Downloaded turbojpeg-sys v1.2.0
[INFO] [stderr]   Downloaded liblzma-sys v0.4.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3111399a4047eeb3a02b7a90e478d715f38a8c6669b5c4b49d30a17385265909" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c9c0f482a4af3d29118968087ca8de57834d4b9d44be52b64456259578d2c3eb
[INFO] running `Command { std: "docker" "start" "c9c0f482a4af3d29118968087ca8de57834d4b9d44be52b64456259578d2c3eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9c0f482a4af3d29118968087ca8de57834d4b9d44be52b64456259578d2c3eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c9c0f482a4af3d29118968087ca8de57834d4b9d44be52b64456259578d2c3eb" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9c0f482a4af3d29118968087ca8de57834d4b9d44be52b64456259578d2c3eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c9c0f482a4af3d29118968087ca8de57834d4b9d44be52b64456259578d2c3eb" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.229
[INFO] [stderr]    Compiling serde_json v1.0.151
[INFO] [stderr]    Compiling thiserror v2.0.20
[INFO] [stderr]    Compiling indexmap v2.14.2
[INFO] [stderr]    Compiling syn v3.0.5
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling crc32fast v1.5.1
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling bitflags v2.13.2
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling bytes v1.12.1
[INFO] [stderr]    Compiling simd-adler32 v0.3.10
[INFO] [stderr]    Compiling adler2 v2.0.1
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling miniz_oxide v0.9.1
[INFO] [stderr]    Compiling filetime v0.2.29
[INFO] [stderr]    Compiling aho-corasick v1.1.5
[INFO] [stderr]    Compiling glob v0.3.4
[INFO] [stderr]    Compiling flate2 v1.1.10
[INFO] [stderr]    Compiling regex-automata v0.4.18
[INFO] [stderr]    Compiling xattr v1.6.1
[INFO] [stderr]    Compiling tar v0.4.46
[INFO] [stderr]    Compiling thiserror-impl v2.0.20
[INFO] [stderr]    Compiling serde_yaml v0.9.34+deprecated
[INFO] [stderr]    Compiling webdataset-core v0.0.1
[INFO] [stderr]    Compiling regex v1.13.1
[INFO] [stderr]    Compiling webdataset-io v0.0.1
[INFO] [stderr]    Compiling webdataset-tenbin v0.0.1
[INFO] [stderr]    Compiling webdataset-shard v0.0.1
[INFO] [stderr]    Compiling webdataset v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.79s
[INFO] running `Command { std: "docker" "inspect" "c9c0f482a4af3d29118968087ca8de57834d4b9d44be52b64456259578d2c3eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c9c0f482a4af3d29118968087ca8de57834d4b9d44be52b64456259578d2c3eb" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.151
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling zerocopy v0.8.57
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling clap_lex v1.1.0
[INFO] [stderr]    Compiling anstyle v1.0.14
[INFO] [stderr]    Compiling itertools v0.13.0
[INFO] [stderr]    Compiling futures-util v0.3.34
[INFO] [stderr]    Compiling clap_builder v4.6.6
[INFO] [stderr]    Compiling webdataset-core v0.0.1
[INFO] [stderr]    Compiling fastrand v2.5.0
[INFO] [stderr]    Compiling futures-channel v0.3.34
[INFO] [stderr]    Compiling webdataset-io v0.0.1
[INFO] [stderr]    Compiling criterion-plot v0.6.0
[INFO] [stderr]    Compiling webdataset-tenbin v0.0.1
[INFO] [stderr]    Compiling futures-executor v0.3.34
[INFO] [stderr]    Compiling xattr v1.6.1
[INFO] [stderr]    Compiling clap v4.6.6
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling tar v0.4.46
[INFO] [stderr]    Compiling webdataset-shard v0.0.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling serde_yaml v0.9.34+deprecated
[INFO] [stderr]    Compiling zerocopy-derive v0.8.57
[INFO] [stderr]    Compiling webdataset v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling criterion v0.7.0
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 41.47s
[INFO] running `Command { std: "docker" "inspect" "c9c0f482a4af3d29118968087ca8de57834d4b9d44be52b64456259578d2c3eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c9c0f482a4af3d29118968087ca8de57834d4b9d44be52b64456259578d2c3eb" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/webdataset-4b9a7b4e6b47a772)
[INFO] [stdout] 
[INFO] [stdout] running 107 tests
[INFO] [stdout] test batch::tests::refuses_empty_batches ... ok
[INFO] [stdout] test batch::tests::collates_tuples_columnwise ... ok
[INFO] [stdout] test batch::tests::keeps_text_columns_as_lists ... ok
[INFO] [stdout] test batch::tests::refuses_ragged_batches ... ok
[INFO] [stdout] test batch::tests::round_trips_through_uncollate ... ok
[INFO] [stdout] test batch::tests::stacks_integers_into_a_tensor ... ok
[INFO] [stdout] test batch::tests::stacks_tensors_with_a_leading_dimension ... ok
[INFO] [stdout] test dataset::tests::refuses_a_missing_cache_directory ... ok
[INFO] [stdout] test dataset::tests::honours_epoch_length ... ok
[INFO] [stdout] test dataset::tests::resamples_shards_endlessly ... ok
[INFO] [stdout] test dataset::tests::reads_a_shard_end_to_end ... FAILED
[INFO] [stdout] test dataset::tests::batches_through_the_iterator_adapters ... FAILED
[INFO] [stdout] test dataset::tests::maps_and_selects ... FAILED
[INFO] [stdout] test dataset::tests::reports_a_dataset_that_yields_no_samples ... FAILED
[INFO] [stdout] test dataset::tests::renames_fields ... FAILED
[INFO] [stdout] test dataset::tests::filtering_everything_out_downstream_is_not_an_error ... FAILED
[INFO] [stdout] test dataset::tests::decodes_and_projects ... FAILED
[INFO] [stdout] test decode::tests::leaves_unknown_extensions_as_bytes ... ok
[INFO] [stdout] test decode::tests::decodes_the_basic_extensions ... ok
[INFO] [stdout] test decode::tests::matches_multi_component_extensions ... ok
[INFO] [stdout] test decode::tests::reports_pickles_as_unsupported ... ok
[INFO] [stdout] test decode::tests::round_trips_npy_and_tenbin ... ok
[INFO] [stdout] test dataset::tests::shuffles_reproducibly_for_a_fixed_seed ... FAILED
[INFO] [stdout] test decode::tests::honours_only_and_partial ... ok
[INFO] [stdout] test decode::tests::runs_custom_handlers_before_the_defaults ... ok
[INFO] [stdout] test encode::tests::round_trips_the_basic_extensions ... ok
[INFO] [stdout] test encode::tests::encodes_a_single_tensor_as_a_one_element_tenbin ... ok
[INFO] [stdout] test decode::tests::decodes_metadata_as_text ... ok
[INFO] [stdout] test encode::tests::reports_type_mismatches ... ok
[INFO] [stdout] test encode::tests::round_trips_through_gzip ... ok
[INFO] [stdout] test encode::tests::stores_raw_bytes_verbatim ... ok
[INFO] [stdout] test encode::tests::writes_metadata_as_text ... ok
[INFO] [stdout] test filters::tests::extract_keys_uses_glob_patterns ... ok
[INFO] [stdout] test decode::tests::decompresses_and_then_decodes ... ok
[INFO] [stdout] test decode::tests::reports_bad_input_with_the_field_name ... ok
[INFO] [stdout] test filters::tests::errors_from_upstream_pass_through_untouched ... ok
[INFO] [stdout] test dataset::tests::runs_over_a_worker_pool ... FAILED
[INFO] [stdout] test filters::tests::listed_and_batched_group_samples ... ok
[INFO] [stdout] test filters::tests::map_drops_none_and_preserves_the_key ... ok
[INFO] [stdout] test filters::tests::map_routes_failures_to_the_handler ... ok
[INFO] [stdout] test filters::tests::map_tuple_applies_per_position ... ok
[INFO] [stdout] test filters::tests::non_empty_reports_an_empty_stream ... ok
[INFO] [stdout] test filters::tests::rename_keeps_or_drops_the_rest ... ok
[INFO] [stdout] test filters::tests::rename_keys_matches_patterns ... ok
[INFO] [stdout] test filters::tests::select_filters ... ok
[INFO] [stdout] test filters::tests::shuffle_handles_streams_smaller_than_the_buffer ... ok
[INFO] [stdout] test filters::tests::shuffle_is_reproducible_for_a_given_seed ... ok
[INFO] [stdout] test filters::tests::shuffle_keeps_every_sample ... ok
[INFO] [stdout] test filters::tests::sliced_skips_steps_and_truncates ... ok
[INFO] [stdout] test filters::tests::unbatched_reverses_batching ... ok
[INFO] [stdout] test filters::tests::to_tuple_projects_fields ... ok
[INFO] [stdout] test filters::tests::tuple_batching_collates_columns ... ok
[INFO] [stdout] test loader::tests::runs_inline_with_one_worker ... ok
[INFO] [stdout] test loader::tests::can_be_iterated_repeatedly ... ok
[INFO] [stdout] test loader::tests::reports_errors_from_workers ... ok
[INFO] [stdout] test loader::tests::splits_work_across_threads_without_duplication ... ok
[INFO] [stdout] test mix::tests::random_mix_can_drain_the_longest ... ok
[INFO] [stdout] test mix::tests::round_robin_can_drain_the_longest ... ok
[INFO] [stdout] test mix::tests::random_mix_is_reproducible ... ok
[INFO] [stdout] test mix::tests::random_mix_rejects_bad_weights ... ok
[INFO] [stdout] test mix::tests::round_robin_stops_at_the_shortest_by_default ... ok
[INFO] [stdout] test mix::tests::weighted_choice_follows_the_cumulative_distribution ... ok
[INFO] [stdout] test pipeline::tests::is_shared_when_cloned ... ok
[INFO] [stdout] test pipeline::tests::redraws_epoch_boundaries ... ok
[INFO] [stdout] test filters::tests::rsample_keeps_roughly_the_requested_fraction ... ok
[INFO] [stdout] test pipeline::tests::replays_the_source_on_every_iteration ... ok
[INFO] [stdout] test mix::tests::round_robin_interleaves ... ok
[INFO] [stdout] test pipeline::tests::runs_the_stages_in_order ... ok
[INFO] [stdout] test loader::tests::runs_the_pipeline_once_per_worker_without_a_splitter ... ok
[INFO] [stdout] test pipeline::tests::repeats_a_fixed_number_of_epochs ... ok
[INFO] [stdout] test pipeline::tests::stops_instead_of_spinning_on_an_empty_source ... ok
[INFO] [stdout] test pipeline::tests::truncates_with_take ... ok
[INFO] [stdout] test shardlists::tests::expands_brace_patterns ... ok
[INFO] [stdout] test shardlists::tests::keeps_order_without_a_seed_and_varies_with_one ... ok
[INFO] [stdout] test loader::tests::iter_ok_drops_failures ... ok
[INFO] [stdout] test shardlists::tests::claims_shards_from_a_directory ... ok
[INFO] [stdout] test shardlists::tests::rejects_an_empty_shard_list ... ok
[INFO] [stdout] test shardlists::tests::parses_a_yaml_specification ... ok
[INFO] [stdout] test shardlists::tests::resamples_deterministically_when_asked ... ok
[INFO] [stdout] test shardlists::tests::single_node_only_refuses_to_guess ... ok
[INFO] [stdout] test shardlists::tests::splits_shards_across_workers ... ok
[INFO] [stdout] test shardlists::tests::splitting_is_a_no_op_with_one_worker ... ok
[INFO] [stdout] test sources::tests::applies_a_file_selection ... FAILED
[INFO] [stdout] test sources::tests::reads_samples_out_of_a_shard ... FAILED
[INFO] [stdout] test sources::tests::reads_several_shards_in_order ... FAILED
[INFO] [stdout] test sources::tests::reports_a_shard_the_memory_opener_does_not_hold ... ok
[INFO] [stdout] test sources::tests::reports_unreadable_shards_through_the_handler ... FAILED
[INFO] [stdout] test sources::tests::serves_shards_from_memory ... FAILED
[INFO] [stdout] test stages::tests::associate_adds_fields_by_key ... ok
[INFO] [stdout] test stages::tests::check_empty_reports_a_starved_pipeline ... ok
[INFO] [stdout] test stages::tests::decode_turns_bytes_into_values ... ok
[INFO] [stdout] test stages::tests::map_and_select_compose ... ok
[INFO] [stdout] test stages::tests::memory_cache_ignores_an_abandoned_first_pass ... ok
[INFO] [stdout] test stages::tests::memory_cache_replays_the_first_pass ... ok
[INFO] [stdout] test shardlists::tests::resamples_with_replacement ... ok
[INFO] [stdout] test stages::tests::rename_keys_matches_by_pattern ... ok
[INFO] [stdout] test stages::tests::rename_resolves_alternatives ... ok
[INFO] [stdout] test stages::tests::shuffle_repeats_with_a_fixed_seed ... ok
[INFO] [stderr] cat: /opt/rustwide/workdir/../../testdata/sample.tgz: No such file or directory
[INFO] [stdout] test shardlists::tests::rejects_contradictory_specifications ... ok
[INFO] [stdout] test shardlists::tests::resampling_never_ends_without_a_count ... ok
[INFO] [stdout] test stages::tests::shuffle_varies_between_epochs_when_deterministic ... ok
[INFO] [stdout] test stages::tests::slice_and_subsample_reduce_the_stream ... ok
[INFO] [stdout] test stages::tests::trace_passes_samples_through_unchanged ... ok
[INFO] [stdout] test shardlists::tests::parses_claim_names ... ok
[INFO] [stdout] test loader::tests::stops_the_workers_when_dropped_early ... ok
[INFO] [stdout] test mix::tests::random_mix_respects_weights ... ok
[INFO] [stderr] cat: /opt/rustwide/workdir/../../testdata/sample.tgz: No such file or directory
[INFO] [stderr] cat: /opt/rustwide/workdir/../../testdata/sample.tgz: No such file or directory
[INFO] [stderr] cat: /opt/rustwide/workdir/../../testdata/sample.tgz: No such file or directory
[INFO] [stderr] cat: /opt/rustwide/workdir/../../testdata/sample.tgz: No such file or directory
[INFO] [stderr] cat: /opt/rustwide/workdir/../../testdata/sample.tgz: No such file or directory
[INFO] [stderr] cat: /opt/rustwide/workdir/../../testdata/sample.tgz: No such file or directory
[INFO] [stderr] cat: /opt/rustwide/workdir/../../testdata/sample.tgz: No such file or directory
[INFO] [stderr] cat: /opt/rustwide/workdir/../../testdata/sample.tgz: No such file or directory
[INFO] [stdout] test sources::tests::caches_shards_when_asked has been running for over 60 seconds
[INFO] [stderr] cat: /opt/rustwide/workdir/../../testdata/sample.tgz: No such file or directory
[INFO] [stdout] test sources::tests::caches_shards_when_asked ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- dataset::tests::reads_a_shard_end_to_end stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'dataset::tests::reads_a_shard_end_to_end' (1302) panicked at src/dataset.rs:459:63:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Context { context: "/opt/rustwide/workdir/../../testdata/imagenet-000000.tgz", source: Context { context: "opening /opt/rustwide/workdir/../../testdata/imagenet-000000.tgz", source: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" }) } }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a32cd5b3c81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a32cd5cb9ba - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a32cd5cb9ba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5a32cd5b97fc - core[df12db4294e9bfd3]::io::write::default_write_fmt::<alloc[2182bb758b4b3781]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5a32cd5b97fc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5a32cd58d316 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a32cd58d316 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a32cd5ab039 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a32cd434b20 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   12:     0x5a32cd434b20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5a32cd5ab1f2 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   14:     0x5a32cd5ab1f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stdout]   15:     0x5a32cd58d3c2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   16:     0x5a32cd585b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a32cd58e12d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   18:     0x5a32cd5cc1ac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a32cd5cbf02 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1871:5
[INFO] [stdout]   20:     0x5a32cd3a9cf5 - <core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1232:23
[INFO] [stdout]   21:     0x5a32cd3a9cf5 - webdataset[f9c215b9b9f3e03a]::dataset::tests::reads_a_shard_end_to_end::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:459:63
[INFO] [stdout]   22:     0x5a32cd384efb - <&mut webdataset[f9c215b9b9f3e03a]::dataset::tests::reads_a_shard_end_to_end::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<(core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>,)>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:310:21
[INFO] [stdout]   23:     0x5a32cd384efb - <core[df12db4294e9bfd3]::option::Option<core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>>>::map::<webdataset_core[b760e8c67b4b55eb]::sample::Sample, &mut webdataset[f9c215b9b9f3e03a]::dataset::tests::reads_a_shard_end_to_end::{closure#0}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/option.rs:1163:29
[INFO] [stdout]   24:     0x5a32cd384efb - <core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::dataset::tests::reads_a_shard_end_to_end::{closure#0}> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::next
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/adapters/map.rs:107:26
[INFO] [stdout]   25:     0x5a32cd2db3f2 - <alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample> as alloc[2182bb758b4b3781]::vec::spec_from_iter_nested::SpecFromIterNested<webdataset_core[b760e8c67b4b55eb]::sample::Sample, core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::dataset::tests::reads_a_shard_end_to_end::{closure#0}>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter_nested.rs:24:41
[INFO] [stdout]   26:     0x5a32cd2d2fba - <alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample> as alloc[2182bb758b4b3781]::vec::spec_from_iter::SpecFromIter<webdataset_core[b760e8c67b4b55eb]::sample::Sample, core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::dataset::tests::reads_a_shard_end_to_end::{closure#0}>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter.rs:33:9
[INFO] [stdout]   27:     0x5a32cd2cdfd4 - <alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample> as core[df12db4294e9bfd3]::iter::traits::collect::FromIterator<webdataset_core[b760e8c67b4b55eb]::sample::Sample>>::from_iter::<core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::dataset::tests::reads_a_shard_end_to_end::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/mod.rs:3996:9
[INFO] [stdout]   28:     0x5a32cd37f9fa - <core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::dataset::tests::reads_a_shard_end_to_end::{closure#0}> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::collect::<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/traits/iterator.rs:2086:9
[INFO] [stdout]   29:     0x5a32cd3b1c10 - webdataset[f9c215b9b9f3e03a]::dataset::tests::reads_a_shard_end_to_end
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:459:73
[INFO] [stdout]   30:     0x5a32cd3a9707 - webdataset[f9c215b9b9f3e03a]::dataset::tests::reads_a_shard_end_to_end::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:458:34
[INFO] [stdout]   31:     0x5a32cd30ebd6 - <webdataset[f9c215b9b9f3e03a]::dataset::tests::reads_a_shard_end_to_end::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   32:     0x5a32cd427e0b - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   33:     0x5a32cd427e0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:733:18
[INFO] [stdout]   34:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:74
[INFO] [stdout]   35:     0x5a32cd435475 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   36:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   37:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x5a32cd435475 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:27
[INFO] [stdout]   40:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:677:43
[INFO] [stdout]   41:     0x5a32cd42ed34 - test[9d35eded1c95d3be]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:707:41
[INFO] [stdout]   42:     0x5a32cd42ed34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   43:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   44:     0x5a32cd4385d2 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   45:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   46:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   47:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   48:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   49:     0x5a32cd4385d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   50:     0x5a32cd5b3049 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stdout]   51:     0x5a32cd5b3049 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stdout]   52:     0x79a73465adfa - <unknown>
[INFO] [stdout]   53:     0x79a7346ee3d4 - clone
[INFO] [stdout]   54:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- dataset::tests::batches_through_the_iterator_adapters stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'dataset::tests::batches_through_the_iterator_adapters' (1297) panicked at src/dataset.rs:522:96:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Context { context: "/opt/rustwide/workdir/../../testdata/imagenet-000000.tgz", source: Context { context: "opening /opt/rustwide/workdir/../../testdata/imagenet-000000.tgz", source: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" }) } }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a32cd5b3c81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a32cd5cb9ba - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a32cd5cb9ba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5a32cd5b97fc - core[df12db4294e9bfd3]::io::write::default_write_fmt::<alloc[2182bb758b4b3781]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5a32cd5b97fc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5a32cd58d316 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a32cd58d316 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a32cd5ab039 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a32cd434b20 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   12:     0x5a32cd434b20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5a32cd5ab1f2 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   14:     0x5a32cd5ab1f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stdout]   15:     0x5a32cd58d3c2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   16:     0x5a32cd585b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a32cd58e12d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   18:     0x5a32cd5cc1ac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a32cd5cbf02 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1871:5
[INFO] [stdout]   20:     0x5a32cd3a9df5 - <core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1232:23
[INFO] [stdout]   21:     0x5a32cd3a9df5 - webdataset[f9c215b9b9f3e03a]::dataset::tests::batches_through_the_iterator_adapters::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:522:96
[INFO] [stdout]   22:     0x5a32cd385c4b - <&mut webdataset[f9c215b9b9f3e03a]::dataset::tests::batches_through_the_iterator_adapters::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<(core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>,)>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:310:21
[INFO] [stdout]   23:     0x5a32cd385c4b - <core[df12db4294e9bfd3]::option::Option<core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>>>::map::<webdataset_core[b760e8c67b4b55eb]::sample::Sample, &mut webdataset[f9c215b9b9f3e03a]::dataset::tests::batches_through_the_iterator_adapters::{closure#0}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/option.rs:1163:29
[INFO] [stdout]   24:     0x5a32cd385c4b - <core[df12db4294e9bfd3]::iter::adapters::map::Map<webdataset[f9c215b9b9f3e03a]::filters::Batched<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>>, webdataset[f9c215b9b9f3e03a]::dataset::tests::batches_through_the_iterator_adapters::{closure#0}> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::next
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/adapters/map.rs:107:26
[INFO] [stdout]   25:     0x5a32cd2dc628 - <alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample> as alloc[2182bb758b4b3781]::vec::spec_from_iter_nested::SpecFromIterNested<webdataset_core[b760e8c67b4b55eb]::sample::Sample, core[df12db4294e9bfd3]::iter::adapters::map::Map<webdataset[f9c215b9b9f3e03a]::filters::Batched<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>>, webdataset[f9c215b9b9f3e03a]::dataset::tests::batches_through_the_iterator_adapters::{closure#0}>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter_nested.rs:24:41
[INFO] [stdout]   26:     0x5a32cd2d30ad - <alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample> as alloc[2182bb758b4b3781]::vec::spec_from_iter::SpecFromIter<webdataset_core[b760e8c67b4b55eb]::sample::Sample, core[df12db4294e9bfd3]::iter::adapters::map::Map<webdataset[f9c215b9b9f3e03a]::filters::Batched<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>>, webdataset[f9c215b9b9f3e03a]::dataset::tests::batches_through_the_iterator_adapters::{closure#0}>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter.rs:33:9
[INFO] [stdout]   27:     0x5a32cd2ce167 - <alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample> as core[df12db4294e9bfd3]::iter::traits::collect::FromIterator<webdataset_core[b760e8c67b4b55eb]::sample::Sample>>::from_iter::<core[df12db4294e9bfd3]::iter::adapters::map::Map<webdataset[f9c215b9b9f3e03a]::filters::Batched<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>>, webdataset[f9c215b9b9f3e03a]::dataset::tests::batches_through_the_iterator_adapters::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/mod.rs:3996:9
[INFO] [stdout]   28:     0x5a32cd37fbfd - <core[df12db4294e9bfd3]::iter::adapters::map::Map<webdataset[f9c215b9b9f3e03a]::filters::Batched<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>>, webdataset[f9c215b9b9f3e03a]::dataset::tests::batches_through_the_iterator_adapters::{closure#0}> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::collect::<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/traits/iterator.rs:2086:9
[INFO] [stdout]   29:     0x5a32cd3b234b - webdataset[f9c215b9b9f3e03a]::dataset::tests::batches_through_the_iterator_adapters
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:522:106
[INFO] [stdout]   30:     0x5a32cd3a9797 - webdataset[f9c215b9b9f3e03a]::dataset::tests::batches_through_the_iterator_adapters::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:521:47
[INFO] [stdout]   31:     0x5a32cd30ec36 - <webdataset[f9c215b9b9f3e03a]::dataset::tests::batches_through_the_iterator_adapters::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   32:     0x5a32cd427e0b - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   33:     0x5a32cd427e0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:733:18
[INFO] [stdout]   34:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:74
[INFO] [stdout]   35:     0x5a32cd435475 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   36:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   37:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x5a32cd435475 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:27
[INFO] [stdout]   40:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:677:43
[INFO] [stdout]   41:     0x5a32cd42ed34 - test[9d35eded1c95d3be]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:707:41
[INFO] [stdout]   42:     0x5a32cd42ed34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   43:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   44:     0x5a32cd4385d2 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   45:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   46:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   47:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   48:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   49:     0x5a32cd4385d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   50:     0x5a32cd5b3049 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stdout]   51:     0x5a32cd5b3049 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stdout]   52:     0x79a73465adfa - <unknown>
[INFO] [stdout]   53:     0x79a7346ee3d4 - clone
[INFO] [stdout]   54:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- dataset::tests::maps_and_selects stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'dataset::tests::maps_and_selects' (1301) panicked at src/dataset.rs:499:24:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Context { context: "/opt/rustwide/workdir/../../testdata/imagenet-000000.tgz", source: Context { context: "opening /opt/rustwide/workdir/../../testdata/imagenet-000000.tgz", source: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" }) } }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a32cd5b3c81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a32cd5cb9ba - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a32cd5cb9ba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5a32cd5b97fc - core[df12db4294e9bfd3]::io::write::default_write_fmt::<alloc[2182bb758b4b3781]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5a32cd5b97fc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5a32cd58d316 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a32cd58d316 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a32cd5ab039 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a32cd434b20 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   12:     0x5a32cd434b20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5a32cd5ab1f2 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   14:     0x5a32cd5ab1f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stdout]   15:     0x5a32cd58d3c2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   16:     0x5a32cd585b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a32cd58e12d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   18:     0x5a32cd5cc1ac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a32cd5cbf02 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1871:5
[INFO] [stdout]   20:     0x5a32cd3a9935 - <core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1232:23
[INFO] [stdout]   21:     0x5a32cd3a9935 - webdataset[f9c215b9b9f3e03a]::dataset::tests::maps_and_selects::{closure#2}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:499:24
[INFO] [stdout]   22:     0x5a32cd384e0b - <&mut webdataset[f9c215b9b9f3e03a]::dataset::tests::maps_and_selects::{closure#2} as core[df12db4294e9bfd3]::ops::function::FnOnce<(core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>,)>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:310:21
[INFO] [stdout]   23:     0x5a32cd384e0b - <core[df12db4294e9bfd3]::option::Option<core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>>>::map::<webdataset_core[b760e8c67b4b55eb]::sample::Sample, &mut webdataset[f9c215b9b9f3e03a]::dataset::tests::maps_and_selects::{closure#2}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/option.rs:1163:29
[INFO] [stdout]   24:     0x5a32cd384e0b - <core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::dataset::tests::maps_and_selects::{closure#2}> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::next
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/adapters/map.rs:107:26
[INFO] [stdout]   25:     0x5a32cd2db0e2 - <alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample> as alloc[2182bb758b4b3781]::vec::spec_from_iter_nested::SpecFromIterNested<webdataset_core[b760e8c67b4b55eb]::sample::Sample, core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::dataset::tests::maps_and_selects::{closure#2}>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter_nested.rs:24:41
[INFO] [stdout]   26:     0x5a32cd2d2f8a - <alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample> as alloc[2182bb758b4b3781]::vec::spec_from_iter::SpecFromIter<webdataset_core[b760e8c67b4b55eb]::sample::Sample, core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::dataset::tests::maps_and_selects::{closure#2}>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter.rs:33:9
[INFO] [stdout]   27:     0x5a32cd2cdf84 - <alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample> as core[df12db4294e9bfd3]::iter::traits::collect::FromIterator<webdataset_core[b760e8c67b4b55eb]::sample::Sample>>::from_iter::<core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::dataset::tests::maps_and_selects::{closure#2}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/mod.rs:3996:9
[INFO] [stdout]   28:     0x5a32cd37f9ca - <core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::dataset::tests::maps_and_selects::{closure#2}> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::collect::<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/traits/iterator.rs:2086:9
[INFO] [stdout]   29:     0x5a32cd3b11a7 - webdataset[f9c215b9b9f3e03a]::dataset::tests::maps_and_selects
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:500:14
[INFO] [stdout]   30:     0x5a32cd3a9647 - webdataset[f9c215b9b9f3e03a]::dataset::tests::maps_and_selects::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:493:26
[INFO] [stdout]   31:     0x5a32cd30eb56 - <webdataset[f9c215b9b9f3e03a]::dataset::tests::maps_and_selects::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   32:     0x5a32cd427e0b - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   33:     0x5a32cd427e0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:733:18
[INFO] [stdout]   34:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:74
[INFO] [stdout]   35:     0x5a32cd435475 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   36:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   37:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x5a32cd435475 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:27
[INFO] [stdout]   40:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:677:43
[INFO] [stdout]   41:     0x5a32cd42ed34 - test[9d35eded1c95d3be]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:707:41
[INFO] [stdout]   42:     0x5a32cd42ed34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   43:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   44:     0x5a32cd4385d2 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   45:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   46:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   47:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   48:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   49:     0x5a32cd4385d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   50:     0x5a32cd5b3049 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stdout]   51:     0x5a32cd5b3049 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stdout]   52:     0x79a73465adfa - <unknown>
[INFO] [stdout]   53:     0x79a7346ee3d4 - clone
[INFO] [stdout]   54:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- dataset::tests::reports_a_dataset_that_yields_no_samples stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'dataset::tests::reports_a_dataset_that_yields_no_samples' (1305) panicked at src/dataset.rs:544:9:
[INFO] [stdout] [Err(Context { context: "/opt/rustwide/workdir/../../testdata/sample.tgz", source: Context { context: "opening /opt/rustwide/workdir/../../testdata/sample.tgz", source: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" }) } })]
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a32cd5b3c81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a32cd5cb9ba - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a32cd5cb9ba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5a32cd5b97fc - core[df12db4294e9bfd3]::io::write::default_write_fmt::<alloc[2182bb758b4b3781]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5a32cd5b97fc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5a32cd58d316 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a32cd58d316 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a32cd5ab039 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a32cd434b20 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   12:     0x5a32cd434b20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5a32cd5ab1f2 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   14:     0x5a32cd5ab1f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stdout]   15:     0x5a32cd58d3c2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   16:     0x5a32cd585b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a32cd58e12d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   18:     0x5a32cd5cc1ac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a32cd3b2ab0 - webdataset[f9c215b9b9f3e03a]::dataset::tests::reports_a_dataset_that_yields_no_samples
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:544:9
[INFO] [stdout]   20:     0x5a32cd3a97f7 - webdataset[f9c215b9b9f3e03a]::dataset::tests::reports_a_dataset_that_yields_no_samples::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:537:50
[INFO] [stdout]   21:     0x5a32cd30ec76 - <webdataset[f9c215b9b9f3e03a]::dataset::tests::reports_a_dataset_that_yields_no_samples::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x5a32cd427e0b - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5a32cd427e0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:733:18
[INFO] [stdout]   24:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:74
[INFO] [stdout]   25:     0x5a32cd435475 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   26:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   27:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   28:     0x5a32cd435475 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   29:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:27
[INFO] [stdout]   30:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:677:43
[INFO] [stdout]   31:     0x5a32cd42ed34 - test[9d35eded1c95d3be]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:707:41
[INFO] [stdout]   32:     0x5a32cd42ed34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   33:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   34:     0x5a32cd4385d2 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   35:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   36:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   37:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   38:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   39:     0x5a32cd4385d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   40:     0x5a32cd5b3049 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stdout]   41:     0x5a32cd5b3049 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stdout]   42:     0x79a73465adfa - <unknown>
[INFO] [stdout]   43:     0x79a7346ee3d4 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- dataset::tests::renames_fields stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'dataset::tests::renames_fields' (1304) panicked at src/dataset.rs:508:104:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Context { context: "/opt/rustwide/workdir/../../testdata/imagenet-000000.tgz", source: Context { context: "opening /opt/rustwide/workdir/../../testdata/imagenet-000000.tgz", source: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" }) } }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a32cd5b3c81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a32cd5cb9ba - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a32cd5cb9ba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5a32cd5b97fc - core[df12db4294e9bfd3]::io::write::default_write_fmt::<alloc[2182bb758b4b3781]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5a32cd5b97fc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5a32cd58d316 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a32cd58d316 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a32cd5ab039 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a32cd434b20 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   12:     0x5a32cd434b20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5a32cd5ab1f2 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   14:     0x5a32cd5ab1f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stdout]   15:     0x5a32cd58d3c2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   16:     0x5a32cd585b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a32cd58e12d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   18:     0x5a32cd5cc1ac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a32cd5cbf02 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1871:5
[INFO] [stdout]   20:     0x5a32cd3b0efa - <core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1232:23
[INFO] [stdout]   21:     0x5a32cd3b0efa - webdataset[f9c215b9b9f3e03a]::dataset::tests::renames_fields
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:508:104
[INFO] [stdout]   22:     0x5a32cd3a9617 - webdataset[f9c215b9b9f3e03a]::dataset::tests::renames_fields::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:507:24
[INFO] [stdout]   23:     0x5a32cd30eb36 - <webdataset[f9c215b9b9f3e03a]::dataset::tests::renames_fields::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5a32cd427e0b - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5a32cd427e0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:733:18
[INFO] [stdout]   26:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:74
[INFO] [stdout]   27:     0x5a32cd435475 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   28:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   29:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5a32cd435475 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:27
[INFO] [stdout]   32:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:677:43
[INFO] [stdout]   33:     0x5a32cd42ed34 - test[9d35eded1c95d3be]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:707:41
[INFO] [stdout]   34:     0x5a32cd42ed34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   36:     0x5a32cd4385d2 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   37:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   38:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   41:     0x5a32cd4385d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5a32cd5b3049 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stdout]   43:     0x5a32cd5b3049 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stdout]   44:     0x79a73465adfa - <unknown>
[INFO] [stdout]   45:     0x79a7346ee3d4 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- dataset::tests::filtering_everything_out_downstream_is_not_an_error stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'dataset::tests::filtering_everything_out_downstream_is_not_an_error' (1299) panicked at src/dataset.rs:554:9:
[INFO] [stdout] assertion `left == right` failed
[INFO] [stdout]   left: 1
[INFO] [stdout]  right: 0
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a32cd5b3c81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a32cd5cb9ba - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a32cd5cb9ba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5a32cd5b97fc - core[df12db4294e9bfd3]::io::write::default_write_fmt::<alloc[2182bb758b4b3781]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5a32cd5b97fc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5a32cd58d316 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a32cd58d316 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a32cd5ab039 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a32cd434b20 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   12:     0x5a32cd434b20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5a32cd5ab1f2 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   14:     0x5a32cd5ab1f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stdout]   15:     0x5a32cd58d3c2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   16:     0x5a32cd585b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a32cd58e12d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   18:     0x5a32cd5cc1ac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a32cd5cc043 - core[df12db4294e9bfd3]::panicking::assert_failed_inner
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:452:17
[INFO] [stdout]   20:     0x5a32cd5c6f0d - core[df12db4294e9bfd3]::panicking::assert_failed::<usize, usize>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:407:5
[INFO] [stdout]   21:     0x5a32cd3b2f48 - webdataset[f9c215b9b9f3e03a]::dataset::tests::filtering_everything_out_downstream_is_not_an_error
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:554:9
[INFO] [stdout]   22:     0x5a32cd3a9827 - webdataset[f9c215b9b9f3e03a]::dataset::tests::filtering_everything_out_downstream_is_not_an_error::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:550:61
[INFO] [stdout]   23:     0x5a32cd30ec96 - <webdataset[f9c215b9b9f3e03a]::dataset::tests::filtering_everything_out_downstream_is_not_an_error::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5a32cd427e0b - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5a32cd427e0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:733:18
[INFO] [stdout]   26:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:74
[INFO] [stdout]   27:     0x5a32cd435475 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   28:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   29:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5a32cd435475 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:27
[INFO] [stdout]   32:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:677:43
[INFO] [stdout]   33:     0x5a32cd42ed34 - test[9d35eded1c95d3be]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:707:41
[INFO] [stdout]   34:     0x5a32cd42ed34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   36:     0x5a32cd4385d2 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   37:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   38:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   41:     0x5a32cd4385d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5a32cd5b3049 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stdout]   43:     0x5a32cd5b3049 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stdout]   44:     0x79a73465adfa - <unknown>
[INFO] [stdout]   45:     0x79a7346ee3d4 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- dataset::tests::decodes_and_projects stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'dataset::tests::decodes_and_projects' (1298) panicked at src/dataset.rs:468:80:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Context { context: "/opt/rustwide/workdir/../../testdata/imagenet-000000.tgz", source: Context { context: "opening /opt/rustwide/workdir/../../testdata/imagenet-000000.tgz", source: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" }) } }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a32cd5b3c81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a32cd5cb9ba - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a32cd5cb9ba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5a32cd5b97fc - core[df12db4294e9bfd3]::io::write::default_write_fmt::<alloc[2182bb758b4b3781]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5a32cd5b97fc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5a32cd58d316 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a32cd58d316 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a32cd5ab039 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a32cd434b20 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   12:     0x5a32cd434b20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5a32cd5ab1f2 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   14:     0x5a32cd5ab1f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stdout]   15:     0x5a32cd58d3c2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   16:     0x5a32cd585b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a32cd58e12d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   18:     0x5a32cd5cc1ac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a32cd5cbf02 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1871:5
[INFO] [stdout]   20:     0x5a32cd3a9bf5 - <core[df12db4294e9bfd3]::result::Result<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::value::Value>, webdataset_core[b760e8c67b4b55eb]::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1232:23
[INFO] [stdout]   21:     0x5a32cd3a9bf5 - webdataset[f9c215b9b9f3e03a]::dataset::tests::decodes_and_projects::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:468:80
[INFO] [stdout]   22:     0x5a32cd38603c - <&mut webdataset[f9c215b9b9f3e03a]::dataset::tests::decodes_and_projects::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<(core[df12db4294e9bfd3]::result::Result<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::value::Value>, webdataset_core[b760e8c67b4b55eb]::error::Error>,)>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:310:21
[INFO] [stdout]   23:     0x5a32cd38603c - <core[df12db4294e9bfd3]::option::Option<core[df12db4294e9bfd3]::result::Result<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::value::Value>, webdataset_core[b760e8c67b4b55eb]::error::Error>>>::map::<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::value::Value>, &mut webdataset[f9c215b9b9f3e03a]::dataset::tests::decodes_and_projects::{closure#0}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/option.rs:1163:29
[INFO] [stdout]   24:     0x5a32cd38603c - <core[df12db4294e9bfd3]::iter::adapters::map::Map<webdataset[f9c215b9b9f3e03a]::filters::ToTuple<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>>, webdataset[f9c215b9b9f3e03a]::dataset::tests::decodes_and_projects::{closure#0}> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::next
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/adapters/map.rs:107:26
[INFO] [stdout]   25:     0x5a32cd30c518 - <core[df12db4294e9bfd3]::iter::adapters::take::Take<core[df12db4294e9bfd3]::iter::adapters::map::Map<webdataset[f9c215b9b9f3e03a]::filters::ToTuple<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>>, webdataset[f9c215b9b9f3e03a]::dataset::tests::decodes_and_projects::{closure#0}>> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::next
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/adapters/take.rs:39:23
[INFO] [stdout]   26:     0x5a32cd2d4d98 - <alloc[2182bb758b4b3781]::vec::Vec<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::value::Value>> as alloc[2182bb758b4b3781]::vec::spec_from_iter_nested::SpecFromIterNested<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::value::Value>, core[df12db4294e9bfd3]::iter::adapters::take::Take<core[df12db4294e9bfd3]::iter::adapters::map::Map<webdataset[f9c215b9b9f3e03a]::filters::ToTuple<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>>, webdataset[f9c215b9b9f3e03a]::dataset::tests::decodes_and_projects::{closure#0}>>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter_nested.rs:24:41
[INFO] [stdout]   27:     0x5a32cd2d283d - <alloc[2182bb758b4b3781]::vec::Vec<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::value::Value>> as alloc[2182bb758b4b3781]::vec::spec_from_iter::SpecFromIter<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::value::Value>, core[df12db4294e9bfd3]::iter::adapters::take::Take<core[df12db4294e9bfd3]::iter::adapters::map::Map<webdataset[f9c215b9b9f3e03a]::filters::ToTuple<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>>, webdataset[f9c215b9b9f3e03a]::dataset::tests::decodes_and_projects::{closure#0}>>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter.rs:33:9
[INFO] [stdout]   28:     0x5a32cd2cd295 - <alloc[2182bb758b4b3781]::vec::Vec<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::value::Value>> as core[df12db4294e9bfd3]::iter::traits::collect::FromIterator<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::value::Value>>>::from_iter::<core[df12db4294e9bfd3]::iter::adapters::take::Take<core[df12db4294e9bfd3]::iter::adapters::map::Map<webdataset[f9c215b9b9f3e03a]::filters::ToTuple<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>>, webdataset[f9c215b9b9f3e03a]::dataset::tests::decodes_and_projects::{closure#0}>>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/mod.rs:3996:9
[INFO] [stdout]   29:     0x5a32cd30902d - <core[df12db4294e9bfd3]::iter::adapters::take::Take<core[df12db4294e9bfd3]::iter::adapters::map::Map<webdataset[f9c215b9b9f3e03a]::filters::ToTuple<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>>, webdataset[f9c215b9b9f3e03a]::dataset::tests::decodes_and_projects::{closure#0}>> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::collect::<alloc[2182bb758b4b3781]::vec::Vec<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::value::Value>>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/traits/iterator.rs:2086:9
[INFO] [stdout]   30:     0x5a32cd3b1429 - webdataset[f9c215b9b9f3e03a]::dataset::tests::decodes_and_projects
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:468:98
[INFO] [stdout]   31:     0x5a32cd3a9677 - webdataset[f9c215b9b9f3e03a]::dataset::tests::decodes_and_projects::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:466:30
[INFO] [stdout]   32:     0x5a32cd30eb76 - <webdataset[f9c215b9b9f3e03a]::dataset::tests::decodes_and_projects::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   33:     0x5a32cd427e0b - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   34:     0x5a32cd427e0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:733:18
[INFO] [stdout]   35:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:74
[INFO] [stdout]   36:     0x5a32cd435475 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   37:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   38:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5a32cd435475 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:27
[INFO] [stdout]   41:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:677:43
[INFO] [stdout]   42:     0x5a32cd42ed34 - test[9d35eded1c95d3be]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:707:41
[INFO] [stdout]   43:     0x5a32cd42ed34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   44:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   45:     0x5a32cd4385d2 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   46:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   47:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   48:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   49:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   50:     0x5a32cd4385d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   51:     0x5a32cd5b3049 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stdout]   52:     0x5a32cd5b3049 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stdout]   53:     0x79a73465adfa - <unknown>
[INFO] [stdout]   54:     0x79a7346ee3d4 - clone
[INFO] [stdout]   55:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- dataset::tests::shuffles_reproducibly_for_a_fixed_seed stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'dataset::tests::shuffles_reproducibly_for_a_fixed_seed' (1308) panicked at src/dataset.rs:485:28:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Context { context: "/opt/rustwide/workdir/../../testdata/imagenet-000000.tgz", source: Context { context: "opening /opt/rustwide/workdir/../../testdata/imagenet-000000.tgz", source: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" }) } }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a32cd5b3c81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a32cd5cb9ba - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a32cd5cb9ba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5a32cd5b97fc - core[df12db4294e9bfd3]::io::write::default_write_fmt::<alloc[2182bb758b4b3781]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5a32cd5b97fc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5a32cd58d316 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a32cd58d316 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a32cd5ab039 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a32cd434b20 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   12:     0x5a32cd434b20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5a32cd5ab1f2 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   14:     0x5a32cd5ab1f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stdout]   15:     0x5a32cd58d3c2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   16:     0x5a32cd585b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a32cd58e12d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   18:     0x5a32cd5cc1ac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a32cd5cbf02 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1871:5
[INFO] [stdout]   20:     0x5a32cd3a6912 - <core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1232:23
[INFO] [stdout]   21:     0x5a32cd3a6912 - webdataset[f9c215b9b9f3e03a]::dataset::tests::shuffles_reproducibly_for_a_fixed_seed::{closure#0}::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:485:28
[INFO] [stdout]   22:     0x5a32cd38445b - <&mut webdataset[f9c215b9b9f3e03a]::dataset::tests::shuffles_reproducibly_for_a_fixed_seed::{closure#0}::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<(core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>,)>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:310:21
[INFO] [stdout]   23:     0x5a32cd38445b - <core[df12db4294e9bfd3]::option::Option<core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>>>::map::<alloc[2182bb758b4b3781]::string::String, &mut webdataset[f9c215b9b9f3e03a]::dataset::tests::shuffles_reproducibly_for_a_fixed_seed::{closure#0}::{closure#0}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/option.rs:1163:29
[INFO] [stdout]   24:     0x5a32cd38445b - <core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::dataset::tests::shuffles_reproducibly_for_a_fixed_seed::{closure#0}::{closure#0}> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::next
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/adapters/map.rs:107:26
[INFO] [stdout]   25:     0x5a32cd2d83b2 - <alloc[2182bb758b4b3781]::vec::Vec<alloc[2182bb758b4b3781]::string::String> as alloc[2182bb758b4b3781]::vec::spec_from_iter_nested::SpecFromIterNested<alloc[2182bb758b4b3781]::string::String, core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::dataset::tests::shuffles_reproducibly_for_a_fixed_seed::{closure#0}::{closure#0}>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter_nested.rs:24:41
[INFO] [stdout]   26:     0x5a32cd2d2b8a - <alloc[2182bb758b4b3781]::vec::Vec<alloc[2182bb758b4b3781]::string::String> as alloc[2182bb758b4b3781]::vec::spec_from_iter::SpecFromIter<alloc[2182bb758b4b3781]::string::String, core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::dataset::tests::shuffles_reproducibly_for_a_fixed_seed::{closure#0}::{closure#0}>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter.rs:33:9
[INFO] [stdout]   27:     0x5a32cd2cd884 - <alloc[2182bb758b4b3781]::vec::Vec<alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::iter::traits::collect::FromIterator<alloc[2182bb758b4b3781]::string::String>>::from_iter::<core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::dataset::tests::shuffles_reproducibly_for_a_fixed_seed::{closure#0}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/mod.rs:3996:9
[INFO] [stdout]   28:     0x5a32cd37f81a - <core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::dataset::tests::shuffles_reproducibly_for_a_fixed_seed::{closure#0}::{closure#0}> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::collect::<alloc[2182bb758b4b3781]::vec::Vec<alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/traits/iterator.rs:2086:9
[INFO] [stdout]   29:     0x5a32cd3aa0ce - webdataset[f9c215b9b9f3e03a]::dataset::tests::shuffles_reproducibly_for_a_fixed_seed::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:486:18
[INFO] [stdout]   30:     0x5a32cd3b2605 - webdataset[f9c215b9b9f3e03a]::dataset::tests::shuffles_reproducibly_for_a_fixed_seed
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:488:20
[INFO] [stdout]   31:     0x5a32cd3a97c7 - webdataset[f9c215b9b9f3e03a]::dataset::tests::shuffles_reproducibly_for_a_fixed_seed::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:476:48
[INFO] [stdout]   32:     0x5a32cd30ec56 - <webdataset[f9c215b9b9f3e03a]::dataset::tests::shuffles_reproducibly_for_a_fixed_seed::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   33:     0x5a32cd427e0b - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   34:     0x5a32cd427e0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:733:18
[INFO] [stdout]   35:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:74
[INFO] [stdout]   36:     0x5a32cd435475 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   37:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   38:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5a32cd435475 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:27
[INFO] [stdout]   41:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:677:43
[INFO] [stdout]   42:     0x5a32cd42ed34 - test[9d35eded1c95d3be]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:707:41
[INFO] [stdout]   43:     0x5a32cd42ed34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   44:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   45:     0x5a32cd4385d2 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   46:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   47:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   48:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   49:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   50:     0x5a32cd4385d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   51:     0x5a32cd5b3049 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stdout]   52:     0x5a32cd5b3049 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stdout]   53:     0x79a73465adfa - <unknown>
[INFO] [stdout]   54:     0x79a7346ee3d4 - clone
[INFO] [stdout]   55:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- dataset::tests::runs_over_a_worker_pool stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'dataset::tests::runs_over_a_worker_pool' (1307) panicked at src/dataset.rs:570:9:
[INFO] [stdout] assertion `left == right` failed: splitting by worker must not change the sample count
[INFO] [stdout]   left: 2
[INFO] [stdout]  right: 1
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a32cd5b3c81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a32cd5cb9ba - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a32cd5cb9ba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5a32cd5b97fc - core[df12db4294e9bfd3]::io::write::default_write_fmt::<alloc[2182bb758b4b3781]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5a32cd5b97fc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5a32cd58d316 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a32cd58d316 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a32cd5ab039 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a32cd434b20 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   12:     0x5a32cd434b20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5a32cd5ab1f2 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   14:     0x5a32cd5ab1f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stdout]   15:     0x5a32cd58d3c2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   16:     0x5a32cd585b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a32cd58e12d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   18:     0x5a32cd5cc1ac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a32cd5cc0a3 - core[df12db4294e9bfd3]::panicking::assert_failed_inner
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:447:23
[INFO] [stdout]   20:     0x5a32cd5c6f0d - core[df12db4294e9bfd3]::panicking::assert_failed::<usize, usize>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:407:5
[INFO] [stdout]   21:     0x5a32cd3b1b65 - webdataset[f9c215b9b9f3e03a]::dataset::tests::runs_over_a_worker_pool
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:570:9
[INFO] [stdout]   22:     0x5a32cd3a96d7 - webdataset[f9c215b9b9f3e03a]::dataset::tests::runs_over_a_worker_pool::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/dataset.rs:565:33
[INFO] [stdout]   23:     0x5a32cd30ebb6 - <webdataset[f9c215b9b9f3e03a]::dataset::tests::runs_over_a_worker_pool::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5a32cd427e0b - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5a32cd427e0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:733:18
[INFO] [stdout]   26:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:74
[INFO] [stdout]   27:     0x5a32cd435475 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   28:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   29:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5a32cd435475 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:27
[INFO] [stdout]   32:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:677:43
[INFO] [stdout]   33:     0x5a32cd42ed34 - test[9d35eded1c95d3be]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:707:41
[INFO] [stdout]   34:     0x5a32cd42ed34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   36:     0x5a32cd4385d2 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   37:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   38:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   41:     0x5a32cd4385d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5a32cd5b3049 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stdout]   43:     0x5a32cd5b3049 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stdout]   44:     0x79a73465adfa - <unknown>
[INFO] [stdout]   45:     0x79a7346ee3d4 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- sources::tests::applies_a_file_selection stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'sources::tests::applies_a_file_selection' (1396) panicked at src/sources.rs:300:62:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Context { context: "/opt/rustwide/workdir/../../testdata/sample.tgz", source: Context { context: "opening /opt/rustwide/workdir/../../testdata/sample.tgz", source: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" }) } }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a32cd5b3c81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a32cd5cb9ba - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a32cd5cb9ba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5a32cd5b97fc - core[df12db4294e9bfd3]::io::write::default_write_fmt::<alloc[2182bb758b4b3781]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5a32cd5b97fc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5a32cd58d316 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a32cd58d316 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a32cd5ab039 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a32cd434b20 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   12:     0x5a32cd434b20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5a32cd5ab1f2 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   14:     0x5a32cd5ab1f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stdout]   15:     0x5a32cd58d3c2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   16:     0x5a32cd585b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a32cd58e12d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   18:     0x5a32cd5cc1ac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a32cd5cbf02 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1871:5
[INFO] [stdout]   20:     0x5a32cd32e435 - <core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1232:23
[INFO] [stdout]   21:     0x5a32cd32e435 - webdataset[f9c215b9b9f3e03a]::sources::tests::applies_a_file_selection::{closure#1}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/sources.rs:300:62
[INFO] [stdout]   22:     0x5a32cd384feb - <&mut webdataset[f9c215b9b9f3e03a]::sources::tests::applies_a_file_selection::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<(core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>,)>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:310:21
[INFO] [stdout]   23:     0x5a32cd384feb - <core[df12db4294e9bfd3]::option::Option<core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>>>::map::<webdataset_core[b760e8c67b4b55eb]::sample::Sample, &mut webdataset[f9c215b9b9f3e03a]::sources::tests::applies_a_file_selection::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/option.rs:1163:29
[INFO] [stdout]   24:     0x5a32cd384feb - <core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::sources::tests::applies_a_file_selection::{closure#1}> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::next
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/adapters/map.rs:107:26
[INFO] [stdout]   25:     0x5a32cd2db702 - <alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample> as alloc[2182bb758b4b3781]::vec::spec_from_iter_nested::SpecFromIterNested<webdataset_core[b760e8c67b4b55eb]::sample::Sample, core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::sources::tests::applies_a_file_selection::{closure#1}>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter_nested.rs:24:41
[INFO] [stdout]   26:     0x5a32cd2d2fea - <alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample> as alloc[2182bb758b4b3781]::vec::spec_from_iter::SpecFromIter<webdataset_core[b760e8c67b4b55eb]::sample::Sample, core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::sources::tests::applies_a_file_selection::{closure#1}>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter.rs:33:9
[INFO] [stdout]   27:     0x5a32cd2ce024 - <alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample> as core[df12db4294e9bfd3]::iter::traits::collect::FromIterator<webdataset_core[b760e8c67b4b55eb]::sample::Sample>>::from_iter::<core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::sources::tests::applies_a_file_selection::{closure#1}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/mod.rs:3996:9
[INFO] [stdout]   28:     0x5a32cd37fa2a - <core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::sources::tests::applies_a_file_selection::{closure#1}> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::collect::<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/traits/iterator.rs:2086:9
[INFO] [stdout]   29:     0x5a32cd334923 - webdataset[f9c215b9b9f3e03a]::sources::tests::applies_a_file_selection
[INFO] [stdout]                                at /opt/rustwide/workdir/src/sources.rs:300:72
[INFO] [stdout]   30:     0x5a32cd32e197 - webdataset[f9c215b9b9f3e03a]::sources::tests::applies_a_file_selection::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/sources.rs:294:34
[INFO] [stdout]   31:     0x5a32cd30ef96 - <webdataset[f9c215b9b9f3e03a]::sources::tests::applies_a_file_selection::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   32:     0x5a32cd427e0b - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   33:     0x5a32cd427e0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:733:18
[INFO] [stdout]   34:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:74
[INFO] [stdout]   35:     0x5a32cd435475 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   36:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   37:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x5a32cd435475 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:27
[INFO] [stdout]   40:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:677:43
[INFO] [stdout]   41:     0x5a32cd42ed34 - test[9d35eded1c95d3be]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:707:41
[INFO] [stdout]   42:     0x5a32cd42ed34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   43:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   44:     0x5a32cd4385d2 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   45:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   46:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   47:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   48:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   49:     0x5a32cd4385d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   50:     0x5a32cd5b3049 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stdout]   51:     0x5a32cd5b3049 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stdout]   52:     0x79a73465adfa - <unknown>
[INFO] [stdout]   53:     0x79a7346ee3d4 - clone
[INFO] [stdout]   54:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- sources::tests::reads_samples_out_of_a_shard stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'sources::tests::reads_samples_out_of_a_shard' (1399) panicked at src/sources.rs:226:62:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Context { context: "/opt/rustwide/workdir/../../testdata/sample.tgz", source: Context { context: "opening /opt/rustwide/workdir/../../testdata/sample.tgz", source: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" }) } }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a32cd5b3c81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a32cd5cb9ba - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a32cd5cb9ba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5a32cd5b97fc - core[df12db4294e9bfd3]::io::write::default_write_fmt::<alloc[2182bb758b4b3781]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5a32cd5b97fc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5a32cd58d316 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a32cd58d316 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a32cd5ab039 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a32cd434b20 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   12:     0x5a32cd434b20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5a32cd5ab1f2 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   14:     0x5a32cd5ab1f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stdout]   15:     0x5a32cd58d3c2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   16:     0x5a32cd585b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a32cd58e12d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   18:     0x5a32cd5cc1ac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a32cd5cbf02 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1871:5
[INFO] [stdout]   20:     0x5a32cd32e635 - <core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1232:23
[INFO] [stdout]   21:     0x5a32cd32e635 - webdataset[f9c215b9b9f3e03a]::sources::tests::reads_samples_out_of_a_shard::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/sources.rs:226:62
[INFO] [stdout]   22:     0x5a32cd3851cb - <&mut webdataset[f9c215b9b9f3e03a]::sources::tests::reads_samples_out_of_a_shard::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<(core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>,)>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:310:21
[INFO] [stdout]   23:     0x5a32cd3851cb - <core[df12db4294e9bfd3]::option::Option<core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>>>::map::<webdataset_core[b760e8c67b4b55eb]::sample::Sample, &mut webdataset[f9c215b9b9f3e03a]::sources::tests::reads_samples_out_of_a_shard::{closure#0}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/option.rs:1163:29
[INFO] [stdout]   24:     0x5a32cd3851cb - <core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::sources::tests::reads_samples_out_of_a_shard::{closure#0}> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::next
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/adapters/map.rs:107:26
[INFO] [stdout]   25:     0x5a32cd2dbd22 - <alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample> as alloc[2182bb758b4b3781]::vec::spec_from_iter_nested::SpecFromIterNested<webdataset_core[b760e8c67b4b55eb]::sample::Sample, core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::sources::tests::reads_samples_out_of_a_shard::{closure#0}>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter_nested.rs:24:41
[INFO] [stdout]   26:     0x5a32cd2d304a - <alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample> as alloc[2182bb758b4b3781]::vec::spec_from_iter::SpecFromIter<webdataset_core[b760e8c67b4b55eb]::sample::Sample, core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::sources::tests::reads_samples_out_of_a_shard::{closure#0}>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter.rs:33:9
[INFO] [stdout]   27:     0x5a32cd2ce0c4 - <alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample> as core[df12db4294e9bfd3]::iter::traits::collect::FromIterator<webdataset_core[b760e8c67b4b55eb]::sample::Sample>>::from_iter::<core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::sources::tests::reads_samples_out_of_a_shard::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/mod.rs:3996:9
[INFO] [stdout]   28:     0x5a32cd37fa8a - <core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::sources::tests::reads_samples_out_of_a_shard::{closure#0}> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::collect::<alloc[2182bb758b4b3781]::vec::Vec<webdataset_core[b760e8c67b4b55eb]::sample::Sample>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/traits/iterator.rs:2086:9
[INFO] [stdout]   29:     0x5a32cd33595a - webdataset[f9c215b9b9f3e03a]::sources::tests::reads_samples_out_of_a_shard
[INFO] [stdout]                                at /opt/rustwide/workdir/src/sources.rs:226:72
[INFO] [stdout]   30:     0x5a32cd32e227 - webdataset[f9c215b9b9f3e03a]::sources::tests::reads_samples_out_of_a_shard::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/sources.rs:221:38
[INFO] [stdout]   31:     0x5a32cd30eff6 - <webdataset[f9c215b9b9f3e03a]::sources::tests::reads_samples_out_of_a_shard::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   32:     0x5a32cd427e0b - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   33:     0x5a32cd427e0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:733:18
[INFO] [stdout]   34:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:74
[INFO] [stdout]   35:     0x5a32cd435475 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   36:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   37:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x5a32cd435475 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:27
[INFO] [stdout]   40:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:677:43
[INFO] [stdout]   41:     0x5a32cd42ed34 - test[9d35eded1c95d3be]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:707:41
[INFO] [stdout]   42:     0x5a32cd42ed34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   43:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   44:     0x5a32cd4385d2 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   45:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   46:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   47:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   48:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   49:     0x5a32cd4385d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   50:     0x5a32cd5b3049 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stdout]   51:     0x5a32cd5b3049 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stdout]   52:     0x79a73465adfa - <unknown>
[INFO] [stdout]   53:     0x79a7346ee3d4 - clone
[INFO] [stdout]   54:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- sources::tests::reads_several_shards_in_order stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'sources::tests::reads_several_shards_in_order' (1401) panicked at src/sources.rs:239:59:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Context { context: "/opt/rustwide/workdir/../../testdata/sample.tgz", source: Context { context: "opening /opt/rustwide/workdir/../../testdata/sample.tgz", source: Io(Os { code: 2, kind: NotFound, message: "No such file or directory" }) } }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a32cd5b3c81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a32cd5cb9ba - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a32cd5cb9ba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5a32cd5b97fc - core[df12db4294e9bfd3]::io::write::default_write_fmt::<alloc[2182bb758b4b3781]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5a32cd5b97fc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5a32cd58d316 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a32cd58d316 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a32cd5ab039 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a32cd434b20 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   12:     0x5a32cd434b20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5a32cd5ab1f2 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   14:     0x5a32cd5ab1f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stdout]   15:     0x5a32cd58d3c2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   16:     0x5a32cd585b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a32cd58e12d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   18:     0x5a32cd5cc1ac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a32cd5cbf02 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1871:5
[INFO] [stdout]   20:     0x5a32cd32e752 - <core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1232:23
[INFO] [stdout]   21:     0x5a32cd32e752 - webdataset[f9c215b9b9f3e03a]::sources::tests::reads_several_shards_in_order::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/sources.rs:239:59
[INFO] [stdout]   22:     0x5a32cd3852bb - <&mut webdataset[f9c215b9b9f3e03a]::sources::tests::reads_several_shards_in_order::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<(core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>,)>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:310:21
[INFO] [stdout]   23:     0x5a32cd3852bb - <core[df12db4294e9bfd3]::option::Option<core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>>>::map::<alloc[2182bb758b4b3781]::string::String, &mut webdataset[f9c215b9b9f3e03a]::sources::tests::reads_several_shards_in_order::{closure#0}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/option.rs:1163:29
[INFO] [stdout]   24:     0x5a32cd3852bb - <core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::sources::tests::reads_several_shards_in_order::{closure#0}> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::next
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/adapters/map.rs:107:26
[INFO] [stdout]   25:     0x5a32cd2d95b2 - <alloc[2182bb758b4b3781]::vec::Vec<alloc[2182bb758b4b3781]::string::String> as alloc[2182bb758b4b3781]::vec::spec_from_iter_nested::SpecFromIterNested<alloc[2182bb758b4b3781]::string::String, core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::sources::tests::reads_several_shards_in_order::{closure#0}>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter_nested.rs:24:41
[INFO] [stdout]   26:     0x5a32cd2d2caa - <alloc[2182bb758b4b3781]::vec::Vec<alloc[2182bb758b4b3781]::string::String> as alloc[2182bb758b4b3781]::vec::spec_from_iter::SpecFromIter<alloc[2182bb758b4b3781]::string::String, core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::sources::tests::reads_several_shards_in_order::{closure#0}>>>::from_iter
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/spec_from_iter.rs:33:9
[INFO] [stdout]   27:     0x5a32cd2cda64 - <alloc[2182bb758b4b3781]::vec::Vec<alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::iter::traits::collect::FromIterator<alloc[2182bb758b4b3781]::string::String>>::from_iter::<core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::sources::tests::reads_several_shards_in_order::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/vec/mod.rs:3996:9
[INFO] [stdout]   28:     0x5a32cd37faba - <core[df12db4294e9bfd3]::iter::adapters::map::Map<alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::iter::traits::iterator::Iterator<Item = core[df12db4294e9bfd3]::result::Result<webdataset_core[b760e8c67b4b55eb]::sample::Sample, webdataset_core[b760e8c67b4b55eb]::error::Error>> + core[df12db4294e9bfd3]::marker::Send>, webdataset[f9c215b9b9f3e03a]::sources::tests::reads_several_shards_in_order::{closure#0}> as core[df12db4294e9bfd3]::iter::traits::iterator::Iterator>::collect::<alloc[2182bb758b4b3781]::vec::Vec<alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/iter/traits/iterator.rs:2086:9
[INFO] [stdout]   29:     0x5a32cd335e5e - webdataset[f9c215b9b9f3e03a]::sources::tests::reads_several_shards_in_order
[INFO] [stdout]                                at /opt/rustwide/workdir/src/sources.rs:239:96
[INFO] [stdout]   30:     0x5a32cd32e257 - webdataset[f9c215b9b9f3e03a]::sources::tests::reads_several_shards_in_order::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/sources.rs:234:39
[INFO] [stdout]   31:     0x5a32cd30f016 - <webdataset[f9c215b9b9f3e03a]::sources::tests::reads_several_shards_in_order::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   32:     0x5a32cd427e0b - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   33:     0x5a32cd427e0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:733:18
[INFO] [stdout]   34:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:74
[INFO] [stdout]   35:     0x5a32cd435475 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   36:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   37:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   38:     0x5a32cd435475 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   39:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:27
[INFO] [stdout]   40:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:677:43
[INFO] [stdout]   41:     0x5a32cd42ed34 - test[9d35eded1c95d3be]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:707:41
[INFO] [stdout]   42:     0x5a32cd42ed34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   43:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   44:     0x5a32cd4385d2 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   45:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   46:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   47:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   48:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   49:     0x5a32cd4385d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   50:     0x5a32cd5b3049 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stdout]   51:     0x5a32cd5b3049 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stdout]   52:     0x79a73465adfa - <unknown>
[INFO] [stdout]   53:     0x79a7346ee3d4 - clone
[INFO] [stdout]   54:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- sources::tests::reports_unreadable_shards_through_the_handler stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'sources::tests::reports_unreadable_shards_through_the_handler' (1403) panicked at src/sources.rs:267:9:
[INFO] [stdout] the good shard should still be read
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a32cd5b3c81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a32cd5cb9ba - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a32cd5cb9ba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5a32cd5b97fc - core[df12db4294e9bfd3]::io::write::default_write_fmt::<alloc[2182bb758b4b3781]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5a32cd5b97fc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5a32cd58d316 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a32cd58d316 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a32cd5ab039 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a32cd434b20 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   12:     0x5a32cd434b20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5a32cd5ab1f2 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   14:     0x5a32cd5ab1f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stdout]   15:     0x5a32cd58d3f4 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:681:13
[INFO] [stdout]   16:     0x5a32cd585b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a32cd58e12d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   18:     0x5a32cd5cc1ac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a32cd33662a - webdataset[f9c215b9b9f3e03a]::sources::tests::reports_unreadable_shards_through_the_handler
[INFO] [stdout]                                at /opt/rustwide/workdir/src/sources.rs:267:9
[INFO] [stdout]   20:     0x5a32cd32e287 - webdataset[f9c215b9b9f3e03a]::sources::tests::reports_unreadable_shards_through_the_handler::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/sources.rs:258:55
[INFO] [stdout]   21:     0x5a32cd30f036 - <webdataset[f9c215b9b9f3e03a]::sources::tests::reports_unreadable_shards_through_the_handler::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   22:     0x5a32cd427e0b - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5a32cd427e0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:733:18
[INFO] [stdout]   24:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:74
[INFO] [stdout]   25:     0x5a32cd435475 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   26:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   27:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   28:     0x5a32cd435475 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   29:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:27
[INFO] [stdout]   30:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:677:43
[INFO] [stdout]   31:     0x5a32cd42ed34 - test[9d35eded1c95d3be]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:707:41
[INFO] [stdout]   32:     0x5a32cd42ed34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   33:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   34:     0x5a32cd4385d2 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   35:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   36:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   37:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   38:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   39:     0x5a32cd4385d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   40:     0x5a32cd5b3049 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stdout]   41:     0x5a32cd5b3049 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stdout]   42:     0x79a73465adfa - <unknown>
[INFO] [stdout]   43:     0x79a7346ee3d4 - clone
[INFO] [stdout]   44:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- sources::tests::serves_shards_from_memory stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'sources::tests::serves_shards_from_memory' (1404) panicked at src/sources.rs:272:59:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a32cd5b3c81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a32cd5cb9ba - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a32cd5cb9ba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5a32cd5b97fc - core[df12db4294e9bfd3]::io::write::default_write_fmt::<alloc[2182bb758b4b3781]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5a32cd5b97fc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5a32cd58d316 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a32cd58d316 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a32cd5ab039 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a32cd434b20 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   12:     0x5a32cd434b20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5a32cd5ab1f2 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   14:     0x5a32cd5ab1f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stdout]   15:     0x5a32cd58d3c2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   16:     0x5a32cd585b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a32cd58e12d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   18:     0x5a32cd5cc1ac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a32cd5cbf02 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1871:5
[INFO] [stdout]   20:     0x5a32cd3351d0 - <core[df12db4294e9bfd3]::result::Result<alloc[2182bb758b4b3781]::vec::Vec<u8>, core[df12db4294e9bfd3]::io::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/result.rs:1232:23
[INFO] [stdout]   21:     0x5a32cd3351d0 - webdataset[f9c215b9b9f3e03a]::sources::tests::serves_shards_from_memory
[INFO] [stdout]                                at /opt/rustwide/workdir/src/sources.rs:272:59
[INFO] [stdout]   22:     0x5a32cd32e1f7 - webdataset[f9c215b9b9f3e03a]::sources::tests::serves_shards_from_memory::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/sources.rs:271:35
[INFO] [stdout]   23:     0x5a32cd30efd6 - <webdataset[f9c215b9b9f3e03a]::sources::tests::serves_shards_from_memory::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5a32cd427e0b - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5a32cd427e0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:733:18
[INFO] [stdout]   26:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:74
[INFO] [stdout]   27:     0x5a32cd435475 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   28:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   29:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5a32cd435475 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:27
[INFO] [stdout]   32:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:677:43
[INFO] [stdout]   33:     0x5a32cd42ed34 - test[9d35eded1c95d3be]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:707:41
[INFO] [stdout]   34:     0x5a32cd42ed34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   36:     0x5a32cd4385d2 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   37:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   38:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   41:     0x5a32cd4385d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5a32cd5b3049 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stdout]   43:     0x5a32cd5b3049 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stdout]   44:     0x79a73465adfa - <unknown>
[INFO] [stdout]   45:     0x79a7346ee3d4 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- sources::tests::caches_shards_when_asked stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'sources::tests::caches_shards_when_asked' (1397) panicked at src/sources.rs:254:9:
[INFO] [stdout] assertion `left == right` failed: the shard should have been cached
[INFO] [stdout]   left: 0
[INFO] [stdout]  right: 1
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::backtrace_rs::backtrace::trace_unsynchronized::<std[70759c8f55707aa4]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5a32cd5b3c81 - std[70759c8f55707aa4]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5a32cd5b3c81 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5a32cd5cb9ba - <core[df12db4294e9bfd3]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5a32cd5cb9ba - core[df12db4294e9bfd3]::fmt::write
[INFO] [stdout]    6:     0x5a32cd5b97fc - core[df12db4294e9bfd3]::io::write::default_write_fmt::<alloc[2182bb758b4b3781]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:402:11
[INFO] [stdout]    7:     0x5a32cd5b97fc - <alloc[2182bb758b4b3781]::vec::Vec<u8> as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/io/write.rs:335:13
[INFO] [stdout]    8:     0x5a32cd58d316 - <std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5a32cd58d316 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5a32cd5ab039 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5a32cd434b20 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   12:     0x5a32cd434b20 - test[9d35eded1c95d3be]::test_main_inner::<test[9d35eded1c95d3be]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x5a32cd5ab1f2 - <alloc[2182bb758b4b3781]::boxed::Box<dyn for<'a, 'b> core[df12db4294e9bfd3]::ops::function::Fn<(&'a std[70759c8f55707aa4]::panic::PanicHookInfo<'b>,), Output = ()> + core[df12db4294e9bfd3]::marker::Send + core[df12db4294e9bfd3]::marker::Sync> as core[df12db4294e9bfd3]::ops::function::Fn<(&std[70759c8f55707aa4]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2334:9
[INFO] [stdout]   14:     0x5a32cd5ab1f2 - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:823:13
[INFO] [stdout]   15:     0x5a32cd58d3c2 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:688:13
[INFO] [stdout]   16:     0x5a32cd585b89 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5a32cd58e12d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:679:5
[INFO] [stdout]   18:     0x5a32cd5cc1ac - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5a32cd5cc0a3 - core[df12db4294e9bfd3]::panicking::assert_failed_inner
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:447:23
[INFO] [stdout]   20:     0x5a32cd5c6f0d - core[df12db4294e9bfd3]::panicking::assert_failed::<usize, usize>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panicking.rs:407:5
[INFO] [stdout]   21:     0x5a32cd335091 - webdataset[f9c215b9b9f3e03a]::sources::tests::caches_shards_when_asked
[INFO] [stdout]                                at /opt/rustwide/workdir/src/sources.rs:254:9
[INFO] [stdout]   22:     0x5a32cd32e1c7 - webdataset[f9c215b9b9f3e03a]::sources::tests::caches_shards_when_asked::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/sources.rs:246:34
[INFO] [stdout]   23:     0x5a32cd30efb6 - <webdataset[f9c215b9b9f3e03a]::sources::tests::caches_shards_when_asked::{closure#0} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5a32cd427e0b - <fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5a32cd427e0b - test[9d35eded1c95d3be]::__rust_begin_short_backtrace::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, fn() -> core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:733:18
[INFO] [stdout]   26:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:74
[INFO] [stdout]   27:     0x5a32cd435475 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   28:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   29:     0x5a32cd435475 - std[70759c8f55707aa4]::panicking::catch_unwind::<core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>, core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5a32cd435475 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<test[9d35eded1c95d3be]::run_test_in_process::{closure#0}>, core[df12db4294e9bfd3]::result::Result<(), alloc[2182bb758b4b3781]::string::String>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test_in_process
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:756:27
[INFO] [stdout]   32:     0x5a32cd435475 - test[9d35eded1c95d3be]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:677:43
[INFO] [stdout]   33:     0x5a32cd42ed34 - test[9d35eded1c95d3be]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/test/src/lib.rs:707:41
[INFO] [stdout]   34:     0x5a32cd42ed34 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   36:     0x5a32cd4385d2 - <core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   37:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::do_call::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:576:43
[INFO] [stdout]   38:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panicking::catch_unwind::<(), core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5a32cd4385d2 - std[70759c8f55707aa4]::panic::catch_unwind::<core[df12db4294e9bfd3]::panic::unwind_safe::AssertUnwindSafe<std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5a32cd4385d2 - std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked::<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   41:     0x5a32cd4385d2 - <std[70759c8f55707aa4]::thread::lifecycle::spawn_unchecked<test[9d35eded1c95d3be]::run_test::{closure#1}, ()>::{closure#1} as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5a32cd5b3049 - <alloc[2182bb758b4b3781]::boxed::Box<dyn core[df12db4294e9bfd3]::ops::function::FnOnce<(), Output = ()> + core[df12db4294e9bfd3]::marker::Send> as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/alloc/src/boxed.rs:2320:9
[INFO] [stdout]   43:     0x5a32cd5b3049 - <std[70759c8f55707aa4]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dfb0accb7f508ae8be965d8629557221c889dd98/library/std/src/sys/thread/unix.rs:123:17
[INFO] [stdout]   44:     0x79a73465adfa - <unknown>
[INFO] [stdout]   45:     0x79a7346ee3d4 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     dataset::tests::batches_through_the_iterator_adapters
[INFO] [stdout]     dataset::tests::decodes_and_projects
[INFO] [stdout]     dataset::tests::filtering_everything_out_downstream_is_not_an_error
[INFO] [stdout]     dataset::tests::maps_and_selects
[INFO] [stdout]     dataset::tests::reads_a_shard_end_to_end
[INFO] [stdout]     dataset::tests::renames_fields
[INFO] [stdout]     dataset::tests::reports_a_dataset_that_yields_no_samples
[INFO] [stdout]     dataset::tests::runs_over_a_worker_pool
[INFO] [stdout]     dataset::tests::shuffles_reproducibly_for_a_fixed_seed
[INFO] [stdout]     sources::tests::applies_a_file_selection
[INFO] [stdout]     sources::tests::caches_shards_when_asked
[INFO] [stdout]     sources::tests::reads_samples_out_of_a_shard
[INFO] [stdout]     sources::tests::reads_several_shards_in_order
[INFO] [stdout]     sources::tests::reports_unreadable_shards_through_the_handler
[INFO] [stdout]     sources::tests::serves_shards_from_memory
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 92 passed; 15 failed; 0 ignored; 0 measured; 0 filtered out; finished in 75.26s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c9c0f482a4af3d29118968087ca8de57834d4b9d44be52b64456259578d2c3eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9c0f482a4af3d29118968087ca8de57834d4b9d44be52b64456259578d2c3eb", kill_on_drop: false }`
[INFO] [stdout] c9c0f482a4af3d29118968087ca8de57834d4b9d44be52b64456259578d2c3eb
