[INFO] fetching crate mimetype-detector 0.2.2... [INFO] testing mimetype-detector-0.2.2 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1 [INFO] extracting crate mimetype-detector 0.2.2 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate mimetype-detector 0.2.2 [INFO] removed 0 missing examples [INFO] removed 0 missing tests [INFO] finished tweaking crates.io crate mimetype-detector 0.2.2 [INFO] tweaked toml for crates.io crate mimetype-detector 0.2.2 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate mimetype-detector 0.2.2 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate mimetype-detector 0.2.2 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" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a699a1fa5c7e690071c17170d53cc5b15ff6b741c8f89e7a6ff7541473d14156 [INFO] running `Command { std: "docker" "start" "-a" "a699a1fa5c7e690071c17170d53cc5b15ff6b741c8f89e7a6ff7541473d14156", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a699a1fa5c7e690071c17170d53cc5b15ff6b741c8f89e7a6ff7541473d14156", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a699a1fa5c7e690071c17170d53cc5b15ff6b741c8f89e7a6ff7541473d14156", kill_on_drop: false }` [INFO] [stdout] a699a1fa5c7e690071c17170d53cc5b15ff6b741c8f89e7a6ff7541473d14156 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 73b54e6d5ac1145561e8cd8397dd2319b014d85204a6e89d9e4a19a60bad8acc [INFO] running `Command { std: "docker" "start" "-a" "73b54e6d5ac1145561e8cd8397dd2319b014d85204a6e89d9e4a19a60bad8acc", kill_on_drop: false }` [INFO] [stderr] Compiling mimetype-detector v0.2.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.86s [INFO] running `Command { std: "docker" "inspect" "73b54e6d5ac1145561e8cd8397dd2319b014d85204a6e89d9e4a19a60bad8acc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "73b54e6d5ac1145561e8cd8397dd2319b014d85204a6e89d9e4a19a60bad8acc", kill_on_drop: false }` [INFO] [stdout] 73b54e6d5ac1145561e8cd8397dd2319b014d85204a6e89d9e4a19a60bad8acc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4c6001eff2af0d4897029cc07bd3c4d6912af7ca062a9ded2c451d25eed8b116 [INFO] running `Command { std: "docker" "start" "-a" "4c6001eff2af0d4897029cc07bd3c4d6912af7ca062a9ded2c451d25eed8b116", kill_on_drop: false }` [INFO] [stderr] Compiling mimetype-detector v0.2.2 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.34s [INFO] running `Command { std: "docker" "inspect" "4c6001eff2af0d4897029cc07bd3c4d6912af7ca062a9ded2c451d25eed8b116", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4c6001eff2af0d4897029cc07bd3c4d6912af7ca062a9ded2c451d25eed8b116", kill_on_drop: false }` [INFO] [stdout] 4c6001eff2af0d4897029cc07bd3c4d6912af7ca062a9ded2c451d25eed8b116 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 28b46f262c4517d77e7ffd712c9428d2eea737067182823c4d1c1b994287988e [INFO] running `Command { std: "docker" "start" "-a" "28b46f262c4517d77e7ffd712c9428d2eea737067182823c4d1c1b994287988e", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mimetype_detector-a412ef98ec2be988) [INFO] [stderr] Running tests/mimetype_tests.rs (/opt/rustwide/target/debug/deps/mimetype_tests-9074fd65a3550701) [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] [stdout] [INFO] [stdout] running 212 tests [INFO] [stdout] test test_detect_apng ... ok [INFO] [stdout] test test_detect_aiff ... ok [INFO] [stdout] test test_detect_amr ... ok [INFO] [stdout] test test_detect_amf ... ok [INFO] [stdout] test test_detect_7z ... ok [INFO] [stdout] test test_detect_aaf ... ok [INFO] [stdout] test test_detect_aac ... ok [INFO] [stdout] test test_detect_apk ... ok [INFO] [stdout] test test_comprehensive_mime_type_coverage ... ok [INFO] [stdout] test test_detect_atom ... ok [INFO] [stdout] test test_detect_amp4 ... ok [INFO] [stdout] test test_detect_ar ... ok [INFO] [stdout] test test_detect_3gpp2 ... ok [INFO] [stdout] test test_detect_accdb ... ok [INFO] [stdout] test test_detect_avi ... ok [INFO] [stdout] test test_detect_bmp ... ok [INFO] [stdout] test test_detect_ape ... ok [INFO] [stdout] test test_detect_au ... ok [INFO] [stdout] test test_detect_avif ... ok [INFO] [stdout] test test_detect_3gpp ... ok [INFO] [stdout] test test_detect_asf ... ok [INFO] [stdout] test test_detect_bpg ... ok [INFO] [stdout] test test_detect_doc ... ok [INFO] [stdout] test test_detect_bz2 ... ok [INFO] [stdout] test test_detect_docx ... ok [INFO] [stdout] test test_detect_dvb ... ok [INFO] [stdout] test test_detect_cab ... ok [INFO] [stdout] test test_detect_elf ... ok [INFO] [stdout] test test_detect_dwg ... ok [INFO] [stdout] test test_detect_elf_dump ... ok [INFO] [stdout] test test_detect_elf_exe ... ok [INFO] [stdout] test test_detect_cbor ... ok [INFO] [stdout] test test_detect_elf_lib ... ok [INFO] [stdout] test test_detect_class ... ok [INFO] [stdout] test test_detect_elf_obj ... ok [INFO] [stdout] test test_detect_collada ... ok [INFO] [stdout] test test_detect_eot ... ok [INFO] [stdout] test test_detect_crx ... ok [INFO] [stdout] test test_detect_csv ... ok [INFO] [stdout] test test_detect_cpio ... ok [INFO] [stdout] test test_detect_csv_utf16_be ... ok [INFO] [stdout] test test_detect_csv_utf16_le ... ok [INFO] [stdout] test test_detect_dbf ... ok [INFO] [stdout] test test_detect_dcm ... ok [INFO] [stdout] test test_detect_deb ... ok [INFO] [stdout] test test_detect_djvu ... ok [INFO] [stdout] test test_detect_epub ... ok [INFO] [stdout] test test_detect_fdf ... ok [INFO] [stdout] test test_detect_fasoo ... ok [INFO] [stdout] test test_detect_fits ... ok [INFO] [stdout] test test_detect_exe ... ok [INFO] [stdout] test test_detect_flac ... ok [INFO] [stdout] test test_detect_flv ... ok [INFO] [stdout] test test_detect_gbr ... ok [INFO] [stdout] test test_detect_geojson ... ok [INFO] [stdout] test test_detect_gif ... ok [INFO] [stdout] test test_detect_glb ... ok [INFO] [stdout] test test_detect_gltf ... ok [INFO] [stdout] test test_detect_gml ... ok [INFO] [stdout] test test_detect_gpx ... ok [INFO] [stdout] test test_detect_gzip ... ok [INFO] [stdout] test test_detect_heic ... ok [INFO] [stdout] test test_detect_heic_sequence ... ok [INFO] [stdout] test test_detect_heif_sequence ... ok [INFO] [stdout] test test_detect_heif ... ok [INFO] [stdout] test test_detect_html ... ok [INFO] [stdout] test test_detect_install_shield_cab ... ok [INFO] [stdout] test test_detect_jar ... ok [INFO] [stdout] test test_detect_javascript ... ok [INFO] [stdout] test test_detect_icalendar_utf16_le ... ok [INFO] [stdout] test test_detect_jp2 ... ok [INFO] [stdout] test test_detect_jpm ... ok [INFO] [stdout] test test_detect_html_utf16_le ... ok [INFO] [stdout] test test_detect_icalendar_utf16_be ... ok [INFO] [stdout] test test_detect_jpx ... ok [INFO] [stdout] test test_detect_json_utf16_be ... ok [INFO] [stdout] test test_detect_json_utf16_le ... ok [INFO] [stdout] test test_detect_icns ... ok [INFO] [stdout] test test_detect_json ... ok [INFO] [stdout] test test_detect_jxl ... ok [INFO] [stdout] test test_detect_icalendar ... ok [INFO] [stdout] test test_detect_jxr ... ok [INFO] [stdout] test test_detect_jxs ... ok [INFO] [stdout] test test_detect_kml ... ok [INFO] [stdout] test test_detect_m4a ... ok [INFO] [stdout] test test_detect_kmz ... ok [INFO] [stdout] test test_detect_m4v ... ok [INFO] [stdout] test test_detect_lnk ... ok [INFO] [stdout] test test_detect_macho ... ok [INFO] [stdout] test test_detect_marc ... ok [INFO] [stdout] test test_detect_jpeg ... ok [INFO] [stdout] test test_detect_mobi ... ok [INFO] [stdout] test test_detect_mp3 ... ok [INFO] [stdout] test test_detect_mp4 ... ok [INFO] [stdout] test test_detect_m3u ... ok [INFO] [stdout] test test_detect_lotus123 ... ok [INFO] [stdout] test test_detect_lzip ... ok [INFO] [stdout] test test_detect_hdf ... ok [INFO] [stdout] test test_detect_lua ... ok [INFO] [stdout] test test_detect_har ... ok [INFO] [stdout] test test_detect_ico ... ok [INFO] [stdout] test test_detect_lit ... ok [INFO] [stdout] test test_detect_html_utf16_be ... ok [INFO] [stdout] test test_detect_mpeg ... ok [INFO] [stdout] test test_detect_hdr ... ok [INFO] [stdout] test test_detect_mqv ... ok [INFO] [stderr] Doc-tests mimetype_detector [INFO] [stdout] test test_detect_msg ... ok [INFO] [stdout] test test_detect_ndjson ... ok [INFO] [stdout] test test_detect_mkv ... ok [INFO] [stdout] test test_detect_msi ... ok [INFO] [stdout] test test_detect_odf ... ok [INFO] [stdout] test test_detect_musepack ... ok [INFO] [stdout] test test_detect_odp ... ok [INFO] [stdout] test test_detect_mdb ... ok [INFO] [stdout] test test_detect_odg ... ok [INFO] [stdout] test test_detect_ods ... ok [INFO] [stdout] test test_detect_midi ... ok [INFO] [stdout] test test_detect_odt ... ok [INFO] [stdout] test test_detect_odc ... ok [INFO] [stdout] test test_detect_mj2 ... ok [INFO] [stdout] test test_detect_ogg ... ok [INFO] [stdout] test test_detect_ole ... ok [INFO] [stdout] test test_detect_ogg_audio ... ok [INFO] [stdout] test test_detect_nes ... ok [INFO] [stdout] test test_detect_otf ... ok [INFO] [stdout] test test_detect_ogg_video ... ok [INFO] [stdout] test test_detect_owl2 ... ok [INFO] [stdout] test test_detect_p7s ... ok [INFO] [stdout] test test_detect_pdf ... ok [INFO] [stdout] test test_detect_perl ... ok [INFO] [stdout] test test_detect_pgp_net_share ... ok [INFO] [stdout] test test_detect_png ... ok [INFO] [stdout] test test_detect_php ... ok [INFO] [stdout] test test_detect_ppt ... ok [INFO] [stdout] test test_detect_pptx ... ok [INFO] [stdout] test test_detect_postscript ... ok [INFO] [stdout] test test_detect_python ... ok [INFO] [stdout] test test_detect_pat ... ok [INFO] [stdout] test test_detect_qcp ... ok [INFO] [stdout] test test_detect_rar ... ok [INFO] [stdout] test test_detect_rmvb ... ok [INFO] [stdout] test test_detect_pub ... ok [INFO] [stdout] test test_detect_rss ... ok [INFO] [stdout] test test_detect_rtf ... ok [INFO] [stdout] test test_detect_rtf_utf16_be ... ok [INFO] [stdout] test test_detect_otp ... ok [INFO] [stdout] test test_detect_ots ... ok [INFO] [stdout] test test_detect_ott ... ok [INFO] [stdout] test test_detect_parquet ... ok [INFO] [stdout] test test_detect_psd ... ok [INFO] [stdout] test test_detect_rpm ... ok [INFO] [stdout] test test_detect_otg ... ok [INFO] [stdout] test test_detect_ruby ... ok [INFO] [stdout] test test_detect_quicktime ... ok [INFO] [stdout] test test_detect_shx ... ok [INFO] [stdout] test test_detect_sqlite3 ... ok [INFO] [stdout] test test_detect_srt_utf16_be ... ok [INFO] [stdout] test test_detect_svg ... ok [INFO] [stdout] test test_detect_srt_utf16_le ... ok [INFO] [stdout] test test_detect_srt ... ok [INFO] [stdout] test test_detect_svg_utf16_be ... ok [INFO] [stdout] test test_detect_tcl ... ok [INFO] [stdout] test test_detect_tsv ... ok [INFO] [stdout] test test_detect_torrent ... ok [INFO] [stdout] test test_detect_svg_utf16_le ... ok [INFO] [stdout] test test_detect_tiff ... ok [INFO] [stdout] test test_detect_ttf ... ok [INFO] [stdout] test test_detect_tsv_utf16_le ... ok [INFO] [stdout] test test_detect_tar ... ok [INFO] [stdout] test test_detect_tcx ... ok [INFO] [stdout] test test_detect_ttc ... ok [INFO] [stdout] test test_detect_utf8 ... ok [INFO] [stdout] test test_detect_tzif ... ok [INFO] [stdout] test test_detect_utf16_be ... ok [INFO] [stdout] test test_detect_utf8_bom ... ok [INFO] [stdout] test test_detect_shp ... ok [INFO] [stdout] test test_detect_vcard ... ok [INFO] [stdout] test test_detect_utf16_le ... ok [INFO] [stdout] test test_detect_shell ... ok [INFO] [stdout] test test_detect_vtt_utf16_le ... ok [INFO] [stdout] test test_detect_vcard_utf16_le ... ok [INFO] [stdout] test test_detect_warc ... ok [INFO] [stdout] test test_detect_voc ... ok [INFO] [stdout] test test_detect_vtt ... ok [INFO] [stdout] test test_detect_vtt_utf16_be ... ok [INFO] [stdout] test test_detect_wasm ... ok [INFO] [stdout] test test_detect_vcard_utf16_be ... ok [INFO] [stdout] test test_detect_rtf_utf16_le ... ok [INFO] [stdout] test test_detect_webm ... ok [INFO] [stdout] test test_detect_xar ... ok [INFO] [stdout] test test_detect_xcf ... ok [INFO] [stdout] test test_detect_xhtml ... ok [INFO] [stdout] test test_detect_xlsx ... ok [INFO] [stdout] test test_detect_xliff ... ok [INFO] [stdout] test test_detect_xls ... ok [INFO] [stdout] test test_detect_xml ... ok [INFO] [stdout] test test_detect_xml_utf16_le ... ok [INFO] [stdout] test test_detect_woff ... ok [INFO] [stdout] test test_detect_woff2 ... ok [INFO] [stdout] test test_detect_wav ... ok [INFO] [stdout] test test_detect_xpm ... ok [INFO] [stdout] test test_detect_xz ... ok [INFO] [stdout] test test_detect_x3d ... ok [INFO] [stdout] test test_detect_webp ... ok [INFO] [stdout] test test_detect_zstd ... ok [INFO] [stdout] test test_detect_xfdf ... ok [INFO] [stdout] test test_detect_zip ... ok [INFO] [stdout] test test_detect_swf ... ok [INFO] [stdout] test test_detect_sxc ... ok [INFO] [stdout] test test_detect_threemf ... ok [INFO] [stdout] test test_detect_tsv_utf16_be ... ok [INFO] [stdout] test test_detect_xml_utf16_be ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 212 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test src/lib.rs - (line 59) ... ok [INFO] [stdout] test src/constants.rs - constants (line 8) ... ok [INFO] [stdout] test src/lib.rs - (line 18) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - (line 18) stdout ---- [INFO] [stdout] Test executable failed (exit status: 101). [INFO] [stdout] [INFO] [stdout] stdout: [INFO] [stdout] MIME type: image/png [INFO] [stdout] Extension: .png [INFO] [stdout] [INFO] [stdout] stderr: [INFO] [stdout] [INFO] [stdout] thread 'main' (326) panicked at src/lib.rs:14:50: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x556e47837452 - std::backtrace_rs::backtrace::libunwind::trace::hc4a5f428cfb78751 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x556e47837452 - std::backtrace_rs::backtrace::trace_unsynchronized::h20e1095684b4c296 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x556e47837452 - std::sys::backtrace::_print_fmt::h461f2e3a8f6b29e2 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x556e47837452 - ::fmt::h4ee3a75aa71a2c45 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x556e4785490f - core::fmt::rt::Argument::fmt::h6f1564705cd089af [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x556e4785490f - core::fmt::write::h21ca93b65a7c281a [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x556e47828ea3 - std::io::default_write_fmt::h745a1edf2999cb3b [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x556e47828ea3 - std::io::Write::write_fmt::hfc56e66d6e189682 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x556e47837a62 - std::sys::backtrace::BacktraceLock::print::h58d5d73f9e953cf1 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x556e478265bc - std::panicking::default_hook::{{closure}}::h1457fbe47c9457d1 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x556e478263fc - std::panicking::default_hook::hccb5e73b206c0830 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/panicking.rs:328:9 [INFO] [stdout] 11: 0x556e4782710a - std::panicking::panic_with_hook::h3190ecc6229cdd29 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/panicking.rs:834:13 [INFO] [stdout] 12: 0x556e4783786a - std::panicking::panic_handler::{{closure}}::ha1f1b769bc2bb40c [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/panicking.rs:707:13 [INFO] [stdout] 13: 0x556e478377c9 - std::sys::backtrace::__rust_end_short_backtrace::h5f9cf66f19c2a172 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 14: 0x556e47826ebd - __rustc[a93bd50104b99ad4]::rust_begin_unwind [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/panicking.rs:698:5 [INFO] [stdout] 15: 0x556e47857740 - core::panicking::panic_fmt::hc70c3c83f13c1375 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/core/src/panicking.rs:75:14 [INFO] [stdout] 16: 0x556e47858086 - core::result::unwrap_failed::ha809bf80017a514a [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/core/src/result.rs:1852:5 [INFO] [stdout] 17: 0x556e477e42a1 - rust_out::main::_doctest_main_src_lib_rs_18_0::hc21681cf27ce8599 [INFO] [stdout] 18: 0x556e477e40c9 - rust_out::main::h61a73a86de211918 [INFO] [stdout] 19: 0x556e477e4a03 - core::ops::function::FnOnce::call_once::h6c9c00fd6ee79245 [INFO] [stdout] 20: 0x556e477e5066 - std::sys::backtrace::__rust_begin_short_backtrace::h916f7d6bfb06988c [INFO] [stdout] 21: 0x556e477e4db9 - std::rt::lang_start::{{closure}}::h8b630493ef2474c7 [INFO] [stdout] 22: 0x556e478381e0 - core::ops::function::impls:: for &F>::call_once::hae16bf8966719858 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/core/src/ops/function.rs:290:21 [INFO] [stdout] 23: 0x556e478381e0 - std::panicking::catch_unwind::do_call::hd4eb7cf01d0f66cd [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/panicking.rs:590:40 [INFO] [stdout] 24: 0x556e478381e0 - std::panicking::catch_unwind::h35b4afc45093edf5 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/panicking.rs:553:19 [INFO] [stdout] 25: 0x556e478381e0 - std::panic::catch_unwind::h5a7ef11ac2fa7980 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/panic.rs:359:14 [INFO] [stdout] 26: 0x556e478381e0 - std::rt::lang_start_internal::{{closure}}::h18f8e059e8eb5f5a [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/rt.rs:175:24 [INFO] [stdout] 27: 0x556e478381e0 - std::panicking::catch_unwind::do_call::hb4f94f34ea41283f [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/panicking.rs:590:40 [INFO] [stdout] 28: 0x556e478381e0 - std::panicking::catch_unwind::hfbb31091ea806204 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/panicking.rs:553:19 [INFO] [stdout] 29: 0x556e478381e0 - std::panic::catch_unwind::hc88f452387620cfb [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/panic.rs:359:14 [INFO] [stdout] 30: 0x556e478381e0 - std::rt::lang_start_internal::h23cfb6dcbf9c9010 [INFO] [stdout] at /rustc/b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b/library/std/src/rt.rs:171:5 [INFO] [stdout] 31: 0x556e477e4da1 - std::rt::lang_start::h2676fe224d780b30 [INFO] [stdout] 32: 0x556e477e50a5 - main [INFO] [stdout] 33: 0x75661cd6c1ca - [INFO] [stdout] 34: 0x75661cd6c28b - __libc_start_main [INFO] [stdout] 35: 0x556e477e2ed5 - _start [INFO] [stdout] 36: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - (line 18) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 2 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.43s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "28b46f262c4517d77e7ffd712c9428d2eea737067182823c4d1c1b994287988e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "28b46f262c4517d77e7ffd712c9428d2eea737067182823c4d1c1b994287988e", kill_on_drop: false }` [INFO] [stdout] 28b46f262c4517d77e7ffd712c9428d2eea737067182823c4d1c1b994287988e