[INFO] fetching crate ska 0.5.1...
[INFO] testing ska-0.5.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate ska 0.5.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate ska 0.5.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate ska 0.5.1
[INFO] tweaked toml for crates.io crate ska 0.5.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ska 0.5.1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ska 0.5.1 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" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c72f0bac3e1390aa93c761a36989875454e1bbdeabf8a22e4e99d63168bea86
[INFO] running `Command { std: "docker" "start" "-a" "3c72f0bac3e1390aa93c761a36989875454e1bbdeabf8a22e4e99d63168bea86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c72f0bac3e1390aa93c761a36989875454e1bbdeabf8a22e4e99d63168bea86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c72f0bac3e1390aa93c761a36989875454e1bbdeabf8a22e4e99d63168bea86", kill_on_drop: false }`
[INFO] [stdout] 3c72f0bac3e1390aa93c761a36989875454e1bbdeabf8a22e4e99d63168bea86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5bb0faa010bda76355b3dd2e859702eb3a6a3157a518c79a0c94bd6055d4bcd6
[INFO] running `Command { std: "docker" "start" "-a" "5bb0faa010bda76355b3dd2e859702eb3a6a3157a518c79a0c94bd6055d4bcd6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.179
[INFO] [stderr]    Compiling find-msvc-tools v0.1.6
[INFO] [stderr]    Compiling simd-adler32 v0.3.8
[INFO] [stderr]    Compiling time-core v0.1.6
[INFO] [stderr]    Compiling zmij v1.0.12
[INFO] [stderr]    Compiling slog v2.8.2
[INFO] [stderr]    Compiling deranged v0.5.5
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling matrixmultiply v0.3.10
[INFO] [stderr]    Compiling noodles-core v0.14.0
[INFO] [stderr]    Compiling slog-async v2.8.0
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling portable-atomic v1.13.0
[INFO] [stderr]    Compiling iana-time-zone v0.1.64
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling buffer-redux v1.0.2
[INFO] [stderr]    Compiling cc v1.2.51
[INFO] [stderr]    Compiling time-macros v0.2.24
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling chrono v0.4.42
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling rawpointer v0.2.1
[INFO] [stderr]    Compiling flate2 v1.1.5
[INFO] [stderr]    Compiling term v1.2.1
[INFO] [stderr]    Compiling clap_lex v0.7.6
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling erased-serde v0.3.31
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling clap_builder v4.5.54
[INFO] [stderr]    Compiling noodles-bgzf v0.26.0
[INFO] [stderr]    Compiling colored v2.2.0
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling is-terminal v0.4.17
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling parking_lot_core v0.9.12
[INFO] [stderr]    Compiling console v0.15.11
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling clap_derive v4.5.49
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling time v0.3.44
[INFO] [stderr]    Compiling noodles-csi v0.30.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling bzip2-sys v0.1.13+1.0.8
[INFO] [stderr]    Compiling lzma-sys v0.1.20
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling bytecount v0.6.9
[INFO] [stderr]    Compiling scoped_threadpool v0.1.9
[INFO] [stderr]    Compiling xz2 v0.1.7
[INFO] [stderr]    Compiling bit-vec v0.8.0
[INFO] [stderr]    Compiling dashmap v6.1.0
[INFO] [stderr]    Compiling seq_io v0.3.4
[INFO] [stderr]    Compiling noodles-tabix v0.36.0
[INFO] [stderr]    Compiling indicatif v0.17.11
[INFO] [stderr]    Compiling bit-set v0.8.0
[INFO] [stderr]    Compiling noodles-vcf v0.49.0
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling ndarray v0.15.6
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling bzip2 v0.4.4
[INFO] [stderr]    Compiling slog-json v2.6.1
[INFO] [stderr]    Compiling slog-term v2.9.2
[INFO] [stderr]    Compiling simple_logger v4.3.3
[INFO] [stderr]    Compiling needletail v0.5.1
[INFO] [stderr]    Compiling argmin-math v0.3.0
[INFO] [stderr]    Compiling clap v4.5.54
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling argmin v0.9.0
[INFO] [stderr]    Compiling ska v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 45.33s
[INFO] running `Command { std: "docker" "inspect" "5bb0faa010bda76355b3dd2e859702eb3a6a3157a518c79a0c94bd6055d4bcd6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bb0faa010bda76355b3dd2e859702eb3a6a3157a518c79a0c94bd6055d4bcd6", kill_on_drop: false }`
[INFO] [stdout] 5bb0faa010bda76355b3dd2e859702eb3a6a3157a518c79a0c94bd6055d4bcd6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f95b4ae1a50444675e142b158d2973a4d537d63f0dbc5d41544ff735e6607eb
[INFO] running `Command { std: "docker" "start" "-a" "6f95b4ae1a50444675e142b158d2973a4d537d63f0dbc5d41544ff735e6607eb", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling doc-comment v0.3.4
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling snapbox-macros v0.3.10
[INFO] [stderr]    Compiling float-cmp v0.9.0
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling tempfile v3.24.0
[INFO] [stderr]    Compiling snapbox v0.4.17
[INFO] [stderr]    Compiling predicates v3.1.3
[INFO] [stderr]    Compiling pretty_assertions v1.4.1
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling globset v0.4.18
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling ndarray v0.15.6
[INFO] [stderr]    Compiling indicatif v0.17.11
[INFO] [stderr]    Compiling predicates v2.1.5
[INFO] [stderr]    Compiling ignore v0.4.25
[INFO] [stderr]    Compiling dashmap v6.1.0
[INFO] [stderr]    Compiling globwalk v0.9.1
[INFO] [stderr]    Compiling assert_fs v1.1.3
[INFO] [stderr]    Compiling ska v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 27.19s
[INFO] running `Command { std: "docker" "inspect" "6f95b4ae1a50444675e142b158d2973a4d537d63f0dbc5d41544ff735e6607eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f95b4ae1a50444675e142b158d2973a4d537d63f0dbc5d41544ff735e6607eb", kill_on_drop: false }`
[INFO] [stdout] 6f95b4ae1a50444675e142b158d2973a4d537d63f0dbc5d41544ff735e6607eb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a2f64364a3116aeedae1ca45ee0e2594346ad921af96ec721a219c229ddc1817
[INFO] running `Command { std: "docker" "start" "-a" "a2f64364a3116aeedae1ca45ee0e2594346ad921af96ec721a219c229ddc1817", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ska-dda243e02513ab9f)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test merge_ska_array::tests::test_kmer_iterator ... ok
[INFO] [stdout] test coverage::tests::test_fit_histogram ... ok
[INFO] [stdout] test merge_ska_array::tests::test_delete_samples_normal ... ok
[INFO] [stdout] test ska_dict::bit_encoding::tests::test_base_to_prob ... ok
[INFO] [stdout] test merge_ska_array::tests::test_update_counts ... ok
[INFO] [stdout] test ska_dict::tests::test_add_palindrome_to_dict ... ok
[INFO] [stdout] test merge_ska_array::tests::test_delete_samples_empty_or_all - should panic ... ok
[INFO] [stdout] test coverage::tests::double_fit - should panic ... ok
[INFO] [stdout] test ska_dict::tests::test_panic_add_palindrome_to_dict - should panic ... ok
[INFO] [stdout] test ska_dict::tests::test_panic2_add_palindrome_to_dict - should panic ... ok
[INFO] [stdout] test coverage::tests::print_before_fit - should panic ... ok
[INFO] [stdout] test merge_ska_array::tests::test_delete_samples_non_existent - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ska-a2f7a34be072743f)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/align.rs (/opt/rustwide/target/debug/deps/align-f2d9ce9935e9c0dd)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test align_cli ... ok
[INFO] [stdout] test basic_align ... ok
[INFO] [stdout] test long_kmers ... ok
[INFO] [stdout] test build_cli ... ok
[INFO] [stdout] test build_proportion_reads ... ok
[INFO] [stdout] test build_and_align ... ok
[INFO] [stdout] test filters ... ok
[INFO] [stdout] test parallel_align ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/distance.rs (/opt/rustwide/target/debug/deps/distance-7ac4a605a9ca4f9a)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test dist_filter ... ok
[INFO] [stdout] test basic_dists ... ok
[INFO] [stderr]      Running tests/fasta_input.rs (/opt/rustwide/target/debug/deps/fasta_input-64ae03eac704a11b)
[INFO] [stdout] test multisample_dists ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test align_n ... ok
[INFO] [stdout] test map_n ... ok
[INFO] [stdout] test repeats ... ok
[INFO] [stdout] test palindromes ... ok
[INFO] [stderr]      Running tests/fastq_input.rs (/opt/rustwide/target/debug/deps/fastq_input-37d63708b4af3636)
[INFO] [stdout] test rev_comp ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.39s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test map_fastq ... ok
[INFO] [stdout] test build_auto_check ... ok
[INFO] [stdout] test cov_check ... ok
[INFO] [stdout] test align_fastq ... ok
[INFO] [stdout] test count_check ... ok
[INFO] [stdout] test count_check_long ... ok
[INFO] [stderr]      Running tests/map.rs (/opt/rustwide/target/debug/deps/map-5817c2c23a1628d7)
[INFO] [stdout] test error_fastq ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.15s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test map_u128 ... ok
[INFO] [stdout] test repeat_mask ... ok
[INFO] [stdout] test map_vcf ... ok
[INFO] [stdout] test map_aln ... ok
[INFO] [stdout] test map_rev_comp ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.18s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/skalo.rs (/opt/rustwide/target/debug/deps/skalo-6e84a726c4d1b14d)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test ska_lo ... ok
[INFO] [stderr]      Running tests/skf_ops.rs (/opt/rustwide/target/debug/deps/skf_ops-842a2d37d590ba73)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test merge_delete_u128 ... ok
[INFO] [stdout] test weed ... ok
[INFO] [stderr]    Doc-tests ska
[INFO] [stdout] test merge_delete ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.34s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test src/ska_dict.rs - ska_dict::SkaDict<IntT>::new (line 185) ... ok
[INFO] [stdout] test src/merge_ska_array.rs - merge_ska_array::MergeSkaArray (line 65) ... ok
[INFO] [stdout] test src/lib.rs - (line 415) ... ok
[INFO] [stdout] test src/merge_ska_dict.rs - merge_ska_dict::build_and_merge (line 331) ... ok
[INFO] [stdout] test src/ska_dict/bit_encoding.rs - ska_dict::bit_encoding::IUPAC (line 373) ... ok
[INFO] [stdout] test src/ska_dict.rs - ska_dict::SkaDict<IntT>::new (line 172) ... ok
[INFO] [stdout] test src/ska_ref.rs - ska_ref (line 12) ... ok
[INFO] [stdout] test src/lib.rs - (line 386) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 386) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' (943) panicked at src/lib.rs:29:6:
[INFO] [stdout] Failed to save output file: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5de9470193da - std[128c3efe2914e152]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5de9470193da - std[128c3efe2914e152]::backtrace_rs::backtrace::trace_unsynchronized::<std[128c3efe2914e152]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5de9470193da - std[128c3efe2914e152]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5de9470193da - <<std[128c3efe2914e152]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[6771d259883166e6]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5de94702dada - <core[6771d259883166e6]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5de94702dada - core[6771d259883166e6]::fmt::write
[INFO] [stdout]    6:     0x5de94701df22 - std[128c3efe2914e152]::io::default_write_fmt::<std[128c3efe2914e152]::sys::stdio::unix::Stderr>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x5de94701df22 - <std[128c3efe2914e152]::sys::stdio::unix::Stderr as std[128c3efe2914e152]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x5de9470001cf - <std[128c3efe2914e152]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5de9470001cf - std[128c3efe2914e152]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5de947011fe1 - std[128c3efe2914e152]::panicking::default_hook
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:319:9
[INFO] [stdout]   11:     0x5de94701225b - std[128c3efe2914e152]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:825:13
[INFO] [stdout]   12:     0x5de947000288 - std[128c3efe2914e152]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:698:13
[INFO] [stdout]   13:     0x5de946ff55b9 - std[128c3efe2914e152]::sys::backtrace::__rust_end_short_backtrace::<std[128c3efe2914e152]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   14:     0x5de947000f8d - __rustc[752cc74e29381ccc]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:689:5
[INFO] [stdout]   15:     0x5de94702e31c - core[6771d259883166e6]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/panicking.rs:80:14
[INFO] [stdout]   16:     0x5de94702e062 - core[6771d259883166e6]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/result.rs:1867:5
[INFO] [stdout]   17:     0x5de946f1190b - core::result::Result<T,E>::expect::hcb90b63e2ee1cf5a
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/result.rs:1185:23
[INFO] [stdout]   18:     0x5de946ed8746 - rust_out::main::_doctest_main_src_lib_rs_386_0::he5ae5d25c337ccd7
[INFO] [stdout]   19:     0x5de946ed82d6 - rust_out::main::h82fb2350cf581080
[INFO] [stdout]   20:     0x5de946ed8043 - core::ops::function::FnOnce::call_once::ha255b9c9bfd362b0
[INFO] [stdout]   21:     0x5de946ed8016 - std::sys::backtrace::__rust_begin_short_backtrace::h2d9a46d63e3b4cf7
[INFO] [stdout]   22:     0x5de946ed7ff9 - std::rt::lang_start::{{closure}}::ha4a2862521902498
[INFO] [stdout]   23:     0x5de947011534 - <&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe as core[6771d259883166e6]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/core/src/ops/function.rs:287:21
[INFO] [stdout]   24:     0x5de947011534 - std[128c3efe2914e152]::panicking::catch_unwind::do_call::<&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40
[INFO] [stdout]   25:     0x5de947011534 - std[128c3efe2914e152]::panicking::catch_unwind::<i32, &dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19
[INFO] [stdout]   26:     0x5de947011534 - std[128c3efe2914e152]::panic::catch_unwind::<&dyn core[6771d259883166e6]::ops::function::Fn<(), Output = i32> + core[6771d259883166e6]::marker::Sync + core[6771d259883166e6]::panic::unwind_safe::RefUnwindSafe, i32>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14
[INFO] [stdout]   27:     0x5de947011534 - std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:175:24
[INFO] [stdout]   28:     0x5de947011534 - std[128c3efe2914e152]::panicking::catch_unwind::do_call::<std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x5de947011534 - std[128c3efe2914e152]::panicking::catch_unwind::<isize, std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5de947011534 - std[128c3efe2914e152]::panic::catch_unwind::<std[128c3efe2914e152]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5de947011534 - std[128c3efe2914e152]::rt::lang_start_internal
[INFO] [stdout]                                at /rustc/8489f1adbe1c8f8921cf18b9962cf565237a5489/library/std/src/rt.rs:171:5
[INFO] [stdout]   32:     0x5de946ed7fe1 - std::rt::lang_start::h45abc79480616123
[INFO] [stdout]   33:     0x5de946ed87c5 - main
[INFO] [stdout]   34:     0x7c772a7601ca - <unknown>
[INFO] [stdout]   35:     0x7c772a76028b - __libc_start_main
[INFO] [stdout]   36:     0x5de946ed7ef5 - _start
[INFO] [stdout]   37:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 386)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 7 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.61s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "a2f64364a3116aeedae1ca45ee0e2594346ad921af96ec721a219c229ddc1817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2f64364a3116aeedae1ca45ee0e2594346ad921af96ec721a219c229ddc1817", kill_on_drop: false }`
[INFO] [stdout] a2f64364a3116aeedae1ca45ee0e2594346ad921af96ec721a219c229ddc1817
