[INFO] fetching crate local-rolling-file 1.1.1...
[INFO] testing local-rolling-file-1.1.1 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1
[INFO] extracting crate local-rolling-file 1.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate local-rolling-file 1.1.1
[INFO] finished tweaking crates.io crate local-rolling-file 1.1.1
[INFO] tweaked toml for crates.io crate local-rolling-file 1.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate local-rolling-file 1.1.1 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 75 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f855fc6d879d1820fd50a00134081952b0eff987f9d99c067415a43e1f50cafa
[INFO] running `Command { std: "docker" "start" "-a" "f855fc6d879d1820fd50a00134081952b0eff987f9d99c067415a43e1f50cafa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f855fc6d879d1820fd50a00134081952b0eff987f9d99c067415a43e1f50cafa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f855fc6d879d1820fd50a00134081952b0eff987f9d99c067415a43e1f50cafa", kill_on_drop: false }`
[INFO] [stdout] f855fc6d879d1820fd50a00134081952b0eff987f9d99c067415a43e1f50cafa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d64355c332aae12cb3df68fe33a7f1966da860e2b61ad097c2e9b68ec020ff3
[INFO] running `Command { std: "docker" "start" "-a" "9d64355c332aae12cb3df68fe33a7f1966da860e2b61ad097c2e9b68ec020ff3", kill_on_drop: false }`
[INFO] [stderr]    Compiling symlink v0.1.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling tracing-attributes v0.1.31
[INFO] [stderr]    Compiling tracing v0.1.44
[INFO] [stderr]    Compiling local-rolling-file v1.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.72s
[INFO] running `Command { std: "docker" "inspect" "9d64355c332aae12cb3df68fe33a7f1966da860e2b61ad097c2e9b68ec020ff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d64355c332aae12cb3df68fe33a7f1966da860e2b61ad097c2e9b68ec020ff3", kill_on_drop: false }`
[INFO] [stdout] 9d64355c332aae12cb3df68fe33a7f1966da860e2b61ad097c2e9b68ec020ff3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fa9955c292f2314c4729c4b8df27b5cf22673839c6939477462541d0a7650955
[INFO] running `Command { std: "docker" "start" "-a" "fa9955c292f2314c4729c4b8df27b5cf22673839c6939477462541d0a7650955", kill_on_drop: false }`
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling local-rolling-file v1.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.02s
[INFO] running `Command { std: "docker" "inspect" "fa9955c292f2314c4729c4b8df27b5cf22673839c6939477462541d0a7650955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa9955c292f2314c4729c4b8df27b5cf22673839c6939477462541d0a7650955", kill_on_drop: false }`
[INFO] [stdout] fa9955c292f2314c4729c4b8df27b5cf22673839c6939477462541d0a7650955
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] db4f4ff4c126254cc0939993242cd5e825a0e84127e66b16104131db276f01d1
[INFO] running `Command { std: "docker" "start" "-a" "db4f4ff4c126254cc0939993242cd5e825a0e84127e66b16104131db276f01d1", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/local_rolling_file-37a7766790d633a1)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test t::test_number_of_log_files ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- t::test_number_of_log_files stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 't::test_number_of_log_files' (16) panicked at src/lib.rs:351:37:
[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:     0x5e39af25023a - std[e72de78501789eb0]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5e39af25023a - std[e72de78501789eb0]::backtrace_rs::backtrace::trace_unsynchronized::<std[e72de78501789eb0]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5e39af25023a - std[e72de78501789eb0]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5e39af25023a - <<std[e72de78501789eb0]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[6aaeda2c7ad07a48]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x5e39af2644ea - <core[6aaeda2c7ad07a48]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5e39af2644ea - core[6aaeda2c7ad07a48]::fmt::write
[INFO] [stdout]    6:     0x5e39af254d72 - std[e72de78501789eb0]::io::default_write_fmt::<alloc[28d2dab30c1dc666]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5e39af254d72 - <alloc[28d2dab30c1dc666]::vec::Vec<u8> as std[e72de78501789eb0]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5e39af22d17f - <std[e72de78501789eb0]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5e39af22d17f - std[e72de78501789eb0]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5e39af2473e9 - std[e72de78501789eb0]::panicking::default_hook
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5e39af1a503c - <alloc[28d2dab30c1dc666]::boxed::Box<dyn for<'a, 'b> core[6aaeda2c7ad07a48]::ops::function::Fn<(&'a std[e72de78501789eb0]::panic::PanicHookInfo<'b>,), Output = ()> + core[6aaeda2c7ad07a48]::marker::Sync + core[6aaeda2c7ad07a48]::marker::Send> as core[6aaeda2c7ad07a48]::ops::function::Fn<(&std[e72de78501789eb0]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/alloc/src/boxed.rs:2254:9
[INFO] [stdout]   12:     0x5e39af1a503c - test[4f12b380f1fb68c5]::test_main_with_exit_callback::<test[4f12b380f1fb68c5]::test_main::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5e39af2475a2 - <alloc[28d2dab30c1dc666]::boxed::Box<dyn for<'a, 'b> core[6aaeda2c7ad07a48]::ops::function::Fn<(&'a std[e72de78501789eb0]::panic::PanicHookInfo<'b>,), Output = ()> + core[6aaeda2c7ad07a48]::marker::Sync + core[6aaeda2c7ad07a48]::marker::Send> as core[6aaeda2c7ad07a48]::ops::function::Fn<(&std[e72de78501789eb0]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/alloc/src/boxed.rs:2254:9
[INFO] [stdout]   14:     0x5e39af2475a2 - std[e72de78501789eb0]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5e39af22d238 - std[e72de78501789eb0]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5e39af2248e9 - std[e72de78501789eb0]::sys::backtrace::__rust_end_short_backtrace::<std[e72de78501789eb0]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5e39af22e00d - __rustc[78a4cf188af856fc]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5e39af264cac - core[6aaeda2c7ad07a48]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5e39af264a22 - core[6aaeda2c7ad07a48]::result::unwrap_failed
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x5e39af190a6b - <core[6aaeda2c7ad07a48]::result::Result<(), std[e72de78501789eb0]::io::error::Error>>::unwrap
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x5e39af190a6b - local_rolling_file[91f422f5165e2bc8]::t::test_number_of_log_files
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:351:37
[INFO] [stdout]   22:     0x5e39af18dfe7 - local_rolling_file[91f422f5165e2bc8]::t::test_number_of_log_files::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:345:34
[INFO] [stdout]   23:     0x5e39af198f26 - <local_rolling_file[91f422f5165e2bc8]::t::test_number_of_log_files::{closure#0} as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5e39af19911b - <fn() -> core[6aaeda2c7ad07a48]::result::Result<(), alloc[28d2dab30c1dc666]::string::String> as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5e39af19911b - test[4f12b380f1fb68c5]::__rust_begin_short_backtrace::<core[6aaeda2c7ad07a48]::result::Result<(), alloc[28d2dab30c1dc666]::string::String>, fn() -> core[6aaeda2c7ad07a48]::result::Result<(), alloc[28d2dab30c1dc666]::string::String>>
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x5e39af1a5b0b - test[4f12b380f1fb68c5]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x5e39af1a5b0b - <core[6aaeda2c7ad07a48]::panic::unwind_safe::AssertUnwindSafe<test[4f12b380f1fb68c5]::run_test_in_process::{closure#0}> as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   28:     0x5e39af1a5b0b - std[e72de78501789eb0]::panicking::catch_unwind::do_call::<core[6aaeda2c7ad07a48]::panic::unwind_safe::AssertUnwindSafe<test[4f12b380f1fb68c5]::run_test_in_process::{closure#0}>, core[6aaeda2c7ad07a48]::result::Result<(), alloc[28d2dab30c1dc666]::string::String>>
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x5e39af1a5b0b - std[e72de78501789eb0]::panicking::catch_unwind::<core[6aaeda2c7ad07a48]::result::Result<(), alloc[28d2dab30c1dc666]::string::String>, core[6aaeda2c7ad07a48]::panic::unwind_safe::AssertUnwindSafe<test[4f12b380f1fb68c5]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5e39af1a5b0b - std[e72de78501789eb0]::panic::catch_unwind::<core[6aaeda2c7ad07a48]::panic::unwind_safe::AssertUnwindSafe<test[4f12b380f1fb68c5]::run_test_in_process::{closure#0}>, core[6aaeda2c7ad07a48]::result::Result<(), alloc[28d2dab30c1dc666]::string::String>>
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5e39af1a5b0b - test[4f12b380f1fb68c5]::run_test_in_process
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x5e39af1a5b0b - test[4f12b380f1fb68c5]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x5e39af1a1224 - test[4f12b380f1fb68c5]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x5e39af1a1224 - std[e72de78501789eb0]::sys::backtrace::__rust_begin_short_backtrace::<test[4f12b380f1fb68c5]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x5e39af1a8712 - std[e72de78501789eb0]::thread::lifecycle::spawn_unchecked::<test[4f12b380f1fb68c5]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x5e39af1a8712 - <core[6aaeda2c7ad07a48]::panic::unwind_safe::AssertUnwindSafe<std[e72de78501789eb0]::thread::lifecycle::spawn_unchecked<test[4f12b380f1fb68c5]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   37:     0x5e39af1a8712 - std[e72de78501789eb0]::panicking::catch_unwind::do_call::<core[6aaeda2c7ad07a48]::panic::unwind_safe::AssertUnwindSafe<std[e72de78501789eb0]::thread::lifecycle::spawn_unchecked<test[4f12b380f1fb68c5]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x5e39af1a8712 - std[e72de78501789eb0]::panicking::catch_unwind::<(), core[6aaeda2c7ad07a48]::panic::unwind_safe::AssertUnwindSafe<std[e72de78501789eb0]::thread::lifecycle::spawn_unchecked<test[4f12b380f1fb68c5]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5e39af1a8712 - std[e72de78501789eb0]::panic::catch_unwind::<core[6aaeda2c7ad07a48]::panic::unwind_safe::AssertUnwindSafe<std[e72de78501789eb0]::thread::lifecycle::spawn_unchecked<test[4f12b380f1fb68c5]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5e39af1a8712 - std[e72de78501789eb0]::thread::lifecycle::spawn_unchecked::<test[4f12b380f1fb68c5]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x5e39af1a8712 - <std[e72de78501789eb0]::thread::lifecycle::spawn_unchecked<test[4f12b380f1fb68c5]::run_test::{closure#1}, ()>::{closure#1} as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5e39af24f4cf - <alloc[28d2dab30c1dc666]::boxed::Box<dyn core[6aaeda2c7ad07a48]::ops::function::FnOnce<(), Output = ()> + core[6aaeda2c7ad07a48]::marker::Send> as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/alloc/src/boxed.rs:2240:9
[INFO] [stdout]   43:     0x5e39af24f4cf - <std[e72de78501789eb0]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   44:     0x7aa473812aa4 - <unknown>
[INFO] [stdout]   45:     0x7aa47389fa64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     t::test_number_of_log_files
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "db4f4ff4c126254cc0939993242cd5e825a0e84127e66b16104131db276f01d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db4f4ff4c126254cc0939993242cd5e825a0e84127e66b16104131db276f01d1", kill_on_drop: false }`
[INFO] [stdout] db4f4ff4c126254cc0939993242cd5e825a0e84127e66b16104131db276f01d1