[INFO] fetching crate flexi_logger 0.31.10...
[INFO] testing flexi_logger-0.31.10 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate flexi_logger 0.31.10 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate flexi_logger 0.31.10
[INFO] removed 0 missing examples
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate flexi_logger 0.31.10
[INFO] tweaked toml for crates.io crate flexi_logger 0.31.10 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate flexi_logger 0.31.10 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate flexi_logger 0.31.10 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 7b3f4c943081c077088a057582fe9a434eb396869d99661f11346203da624c51
[INFO] running `Command { std: "docker" "start" "7b3f4c943081c077088a057582fe9a434eb396869d99661f11346203da624c51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b3f4c943081c077088a057582fe9a434eb396869d99661f11346203da624c51", 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" "7b3f4c943081c077088a057582fe9a434eb396869d99661f11346203da624c51" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b3f4c943081c077088a057582fe9a434eb396869d99661f11346203da624c51", 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" "7b3f4c943081c077088a057582fe9a434eb396869d99661f11346203da624c51" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.8.3
[INFO] [stderr]    Compiling thiserror v2.0.19
[INFO] [stderr]    Compiling nu-ansi-term v0.50.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling syn v3.0.3
[INFO] [stderr]    Compiling aho-corasick v1.1.5
[INFO] [stderr]    Compiling chrono v0.4.45
[INFO] [stderr]    Compiling regex-automata v0.4.18
[INFO] [stderr]    Compiling thiserror-impl v2.0.19
[INFO] [stderr]    Compiling regex v1.13.1
[INFO] [stderr]    Compiling flexi_logger v0.31.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 25.29s
[INFO] running `Command { std: "docker" "inspect" "7b3f4c943081c077088a057582fe9a434eb396869d99661f11346203da624c51", 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" "7b3f4c943081c077088a057582fe9a434eb396869d99661f11346203da624c51" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling serde_core v1.0.229
[INFO] [stderr]    Compiling serde v1.0.229
[INFO] [stderr]    Compiling smallvec v1.15.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.107
[INFO] [stderr]    Compiling displaydoc v0.2.7
[INFO] [stderr]    Compiling aho-corasick v1.1.5
[INFO] [stderr]    Compiling quote v1.0.47
[INFO] [stderr]    Compiling pulldown-cmark v0.9.6
[INFO] [stderr]    Compiling libc v0.2.189
[INFO] [stderr]    Compiling percent-encoding v2.3.2
[INFO] [stderr]    Compiling winnow v0.5.40
[INFO] [stderr]    Compiling simd-adler32 v0.3.10
[INFO] [stderr]    Compiling bitflags v2.13.1
[INFO] [stderr]    Compiling unicase v2.9.0
[INFO] [stderr]    Compiling semver v1.0.28
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling cond_sync v0.2.3
[INFO] [stderr]    Compiling miniz_oxide v0.8.9
[INFO] [stderr]    Compiling form_urlencoded v1.2.2
[INFO] [stderr]    Compiling glob v0.3.4
[INFO] [stderr]    Compiling either v1.17.0
[INFO] [stderr]    Compiling temp-dir v0.2.0
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[INFO] [stderr]    Compiling filetime v0.2.29
[INFO] [stderr]    Compiling regex-automata v0.4.18
[INFO] [stderr]    Compiling serde_spanned v0.6.9
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling synstructure v0.13.2
[INFO] [stderr]    Compiling zerofrom-derive v0.1.7
[INFO] [stderr]    Compiling yoke-derive v0.8.2
[INFO] [stderr]    Compiling zerovec-derive v0.11.3
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling regex v1.13.1
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[INFO] [stderr]    Compiling yoke v0.8.3
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling flexi_logger v0.31.10 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling zerovec v0.11.6
[INFO] [stderr]    Compiling zerotrie v0.2.4
[INFO] [stderr]    Compiling toml v0.7.8
[INFO] [stderr]    Compiling tinystr v0.8.3
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[INFO] [stderr]    Compiling icu_locale_core v2.2.0
[INFO] [stderr]    Compiling icu_collections v2.2.0
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[INFO] [stderr]    Compiling icu_properties v2.2.0
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[INFO] [stdout] warning: function `write_logs` is never used
[INFO] [stdout]    --> tests/test_trc.rs:127:19
[INFO] [stdout]     |
[INFO] [stdout] 127 |     pub(crate) fn write_logs(idx: u8) {
[INFO] [stdout]     |                   ^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "7b3f4c943081c077088a057582fe9a434eb396869d99661f11346203da624c51", 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" "7b3f4c943081c077088a057582fe9a434eb396869d99661f11346203da624c51" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: function `write_logs` is never used
[INFO] [stderr]    --> tests/test_trc.rs:127:19
[INFO] [stderr]     |
[INFO] [stderr] 127 |     pub(crate) fn write_logs(idx: u8) {
[INFO] [stderr]     |                   ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `flexi_logger` (test "test_trc") generated 1 warning
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.18s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/build/flexi_logger/778431ebd6ba8fba/out/flexi_logger-778431ebd6ba8fba)
[INFO] [stdout] 
[INFO] [stdout] running 47 tests
[INFO] [stdout] test deferred_now::test::test_chrono_rfc3339 ... ok
[INFO] [stdout] test log_specification::tests::match_default2 ... ok
[INFO] [stdout] test log_specification::tests::match_beginning_longest_match ... ok
[INFO] [stdout] test log_specification::tests::parse_logging_spec_empty_with_filter ... ok
[INFO] [stdout] test log_specification::tests::parse_logging_spec_global ... ok
[INFO] [stdout] test log_specification::tests::parse_logging_spec_empty_log_level ... ok
[INFO] [stdout] test log_specification::tests::add_filters ... ok
[INFO] [stdout] test log_specification::tests::parse_logging_spec_invalid_crate ... ok
[INFO] [stdout] test log_specification::tests::no_match ... ok
[INFO] [stdout] test log_specification::tests::parse_logging_spec_wrong_log_level ... ok
[INFO] [stdout] test log_specification::tests::match_full_path ... ok
[INFO] [stdout] test log_specification::tests::parse_logging_spec_valid ... ok
[INFO] [stdout] test log_specification::tests::parse_logging_spec_valid_filter ... ok
[INFO] [stdout] test log_specification::tests::match_beginning ... ok
[INFO] [stdout] test log_specification::tests::match_default1 ... ok
[INFO] [stdout] test log_specification::tests::parse_roundtrip ... ok
[INFO] [stdout] test log_specification::tests::rocket ... ok
[INFO] [stdout] test formats::test::test_opt_format ... ok
[INFO] [stdout] test deferred_now::test::test_formats ... ok
[INFO] [stdout] test parameters::file_spec::test::issue_178 ... ok
[INFO] [stdout] test log_specification::tests::parse_logging_spec_invalid_crate_filter ... ok
[INFO] [stderr] [2026-10-18 09:04:13.298749 +00:00] ERROR [std_writer.rs:222] This is an error message
[INFO] [stdout] test parameters::file_spec::test::test_from_url ... ok
[INFO] [stderr] [2026-10-18 09:04:13.298835 +00:00] WARN [std_writer.rs:222] This is a warning
[INFO] [stdout] test parameters::file_spec::test::test_default_basename ... ok
[INFO] [stderr] [2026-10-18 09:04:13.298845 +00:00] INFO [std_writer.rs:222] This is an info message
[INFO] [stdout] test parameters::file_spec::test::test_directory_and_suffix ... ok
[INFO] [stdout] test parameters::file_spec::test::test_timstamp_cfg ... ok
[INFO] [stdout] test parameters::file_spec::test::test_empty_base_name ... ok
[INFO] [stdout] test primary_writer::std_writer::test::test_with_validation ... ok
[INFO] [stdout] test parameters::file_spec::test::test_default ... ok
[INFO] [stdout] test parameters::file_spec::test::test_basename ... ok
[INFO] [stdout] test parameters::file_spec::test::test_empty_name ... ok
[INFO] [stdout] test parameters::file_spec::test::test_if_default_use_timestamp ... ok
[INFO] [stdout] test primary_writer::test_writer::test::test_with_validation ... ok
[INFO] [stdout] test writers::file_log_writer::state::timestamps::test::test_latest_timestamp_file ... ok
[INFO] [stdout] test writers::file_log_writer::test::test_rotate_with_append_numbers ... FAILED
[INFO] [stdout] test writers::file_log_writer::test::test_reset ... FAILED
[INFO] [stdout] test parameters::file_spec::test::test_list_of_files ... ok
[INFO] [stdout] test parameters::file_spec::test::test_suppress_basename ... ok
[INFO] [stdout] test writers::file_log_writer::test::test_rotate_with_append_timestamps ... FAILED
[INFO] [stdout] test writers::file_log_writer::test::test_max_log_level ... FAILED
[INFO] [stdout] test writers::file_log_writer::test::test_rotate_no_append_timestamps ... FAILED
[INFO] [stdout] test log_specification::tests::reuse_logspec_builder ... ok
[INFO] [stdout] test parameters::file_spec::test::issue_194 ... ok
[INFO] [stdout] test writers::file_log_writer::test::test_rotate_no_append_numbers ... FAILED
[INFO] [stdout] test log_specification::tests::zero_level ... ok
[INFO] [stdout] test deferred_now::test::test_timestamp_taken_only_once ... ok
[INFO] [stdout] test parameters::file_spec::test::test_discriminant ... ok
[INFO] [stdout] test writers::file_log_writer::test::issue_38 ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- writers::file_log_writer::test::test_rotate_with_append_numbers stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'writers::file_log_writer::test::test_rotate_with_append_numbers' (3137) panicked at src/writers/file_log_writer.rs:652:14:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: OutputIo(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6545fd713281 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x6545fd729eaa - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x6545fd717c5c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x6545fd6ec886 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x6545fd70a339 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x6545fd5cebe0 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x6545fd70a4f2 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x6545fd6ec932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x6545fd6e5239 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x6545fd6ed71d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x6545fd72a68c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x6545fd72a462 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x6545fd57520f - flexi_logger[7f436ccac3edc641]::writers::file_log_writer::test::write_loglines
[INFO] [stdout]   13:     0x6545fd5790cb - <flexi_logger[7f436ccac3edc641]::writers::file_log_writer::test::test_rotate_with_append_numbers::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x6545fd5c202b - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   15:     0x6545fd5cf205 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   16:     0x6545fd5c8af4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x6545fd5d2292 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   18:     0x6545fd71246f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x778cf489adfa - <unknown>
[INFO] [stdout]   20:     0x778cf492e3d4 - clone
[INFO] [stdout]   21:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- writers::file_log_writer::test::test_reset stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'writers::file_log_writer::test::test_reset' (3134) panicked at src/writers/file_log_writer.rs:484:10:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: OutputIo(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6545fd713281 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x6545fd729eaa - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x6545fd717c5c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x6545fd6ec886 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x6545fd70a339 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x6545fd5cebe0 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x6545fd70a4f2 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x6545fd6ec932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x6545fd6e5239 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x6545fd6ed71d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x6545fd72a68c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x6545fd72a462 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x6545fd57742e - <flexi_logger[7f436ccac3edc641]::writers::file_log_writer::test::test_reset::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x6545fd5c202b - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x6545fd5cf205 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x6545fd5c8af4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout]   16:     0x6545fd5d2292 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x6545fd71246f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x778cf489adfa - <unknown>
[INFO] [stdout]   19:     0x778cf492e3d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- writers::file_log_writer::test::test_rotate_with_append_timestamps stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'writers::file_log_writer::test::test_rotate_with_append_timestamps' (3138) panicked at src/writers/file_log_writer.rs:652:14:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: OutputIo(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6545fd713281 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x6545fd729eaa - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x6545fd717c5c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x6545fd6ec886 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x6545fd70a339 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x6545fd5cebe0 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x6545fd70a4f2 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x6545fd6ec932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x6545fd6e5239 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x6545fd6ed71d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x6545fd72a68c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x6545fd72a462 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x6545fd57520f - flexi_logger[7f436ccac3edc641]::writers::file_log_writer::test::write_loglines
[INFO] [stdout]   13:     0x6545fd57aa9f - <flexi_logger[7f436ccac3edc641]::writers::file_log_writer::test::test_rotate_with_append_timestamps::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x6545fd5c202b - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   15:     0x6545fd5cf205 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   16:     0x6545fd5c8af4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x6545fd5d2292 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   18:     0x6545fd71246f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x778cf489adfa - <unknown>
[INFO] [stdout]   20:     0x778cf492e3d4 - clone
[INFO] [stdout]   21:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- writers::file_log_writer::test::test_max_log_level stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'writers::file_log_writer::test::test_max_log_level' (3133) panicked at src/writers/file_log_writer.rs:557:14:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: OutputIo(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6545fd713281 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x6545fd729eaa - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x6545fd717c5c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x6545fd6ec886 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x6545fd70a339 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x6545fd5cebe0 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x6545fd70a4f2 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x6545fd6ec932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x6545fd6e5239 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x6545fd6ed71d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x6545fd72a68c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x6545fd72a462 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x6545fd57827b - <flexi_logger[7f436ccac3edc641]::writers::file_log_writer::test::test_max_log_level::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x6545fd5c202b - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x6545fd5cf205 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x6545fd5c8af4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x6545fd5d2292 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x6545fd71246f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x778cf489adfa - <unknown>
[INFO] [stdout]   19:     0x778cf492e3d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- writers::file_log_writer::test::test_rotate_no_append_timestamps stdout ----
[INFO] [stdout] 2026-10-18 09:04:13.303967061 +00:00 ensure we start with -/-/-
[INFO] [stdout] 2026-10-18 09:04:13.303991021 +00:00 ensure this produces -/-/ONE
[INFO] [stdout] 
[INFO] [stdout] thread 'writers::file_log_writer::test::test_rotate_no_append_timestamps' (3136) panicked at src/writers/file_log_writer.rs:652:14:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: OutputIo(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6545fd713281 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x6545fd729eaa - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x6545fd717c5c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x6545fd6ec886 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x6545fd70a339 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x6545fd5cebe0 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x6545fd70a4f2 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x6545fd6ec932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x6545fd6e5239 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x6545fd6ed71d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x6545fd72a68c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x6545fd72a462 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x6545fd57520f - flexi_logger[7f436ccac3edc641]::writers::file_log_writer::test::write_loglines
[INFO] [stdout]   13:     0x6545fd579f01 - <flexi_logger[7f436ccac3edc641]::writers::file_log_writer::test::test_rotate_no_append_timestamps::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x6545fd5c202b - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   15:     0x6545fd5cf205 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   16:     0x6545fd5c8af4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x6545fd5d2292 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   18:     0x6545fd71246f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x778cf489adfa - <unknown>
[INFO] [stdout]   20:     0x778cf492e3d4 - clone
[INFO] [stdout]   21:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- writers::file_log_writer::test::test_rotate_no_append_numbers stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'writers::file_log_writer::test::test_rotate_no_append_numbers' (3135) panicked at src/writers/file_log_writer.rs:652:14:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: OutputIo(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6545fd713281 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x6545fd729eaa - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x6545fd717c5c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x6545fd6ec886 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x6545fd70a339 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x6545fd5cebe0 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x6545fd70a4f2 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x6545fd6ec932 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x6545fd6e5239 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x6545fd6ed71d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x6545fd72a68c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x6545fd72a462 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x6545fd57520f - flexi_logger[7f436ccac3edc641]::writers::file_log_writer::test::write_loglines
[INFO] [stdout]   13:     0x6545fd5787e8 - <flexi_logger[7f436ccac3edc641]::writers::file_log_writer::test::test_rotate_no_append_numbers::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   14:     0x6545fd5c202b - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   15:     0x6545fd5cf205 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   16:     0x6545fd5c8af4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   17:     0x6545fd5d2292 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   18:     0x6545fd71246f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   19:     0x778cf489adfa - <unknown>
[INFO] [stdout]   20:     0x778cf492e3d4 - clone
[INFO] [stdout]   21:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     writers::file_log_writer::test::test_max_log_level
[INFO] [stdout]     writers::file_log_writer::test::test_reset
[INFO] [stdout]     writers::file_log_writer::test::test_rotate_no_append_numbers
[INFO] [stdout]     writers::file_log_writer::test::test_rotate_no_append_timestamps
[INFO] [stdout]     writers::file_log_writer::test::test_rotate_with_append_numbers
[INFO] [stdout]     writers::file_log_writer::test::test_rotate_with_append_timestamps
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 41 passed; 6 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7b3f4c943081c077088a057582fe9a434eb396869d99661f11346203da624c51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b3f4c943081c077088a057582fe9a434eb396869d99661f11346203da624c51", kill_on_drop: false }`
[INFO] [stdout] 7b3f4c943081c077088a057582fe9a434eb396869d99661f11346203da624c51
