[INFO] fetching crate json-mutex-db 0.0.1...
[INFO] testing json-mutex-db-0.0.1 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate json-mutex-db 0.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate json-mutex-db 0.0.1
[INFO] finished tweaking crates.io crate json-mutex-db 0.0.1
[INFO] tweaked toml for crates.io crate json-mutex-db 0.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate json-mutex-db 0.0.1 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate json-mutex-db 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 32350cc43b837b898dc9c652265ff4992d5b17f2a51b93fcc864dcad927eda87
[INFO] running `Command { std: "docker" "start" "-a" "32350cc43b837b898dc9c652265ff4992d5b17f2a51b93fcc864dcad927eda87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "32350cc43b837b898dc9c652265ff4992d5b17f2a51b93fcc864dcad927eda87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32350cc43b837b898dc9c652265ff4992d5b17f2a51b93fcc864dcad927eda87", kill_on_drop: false }`
[INFO] [stdout] 32350cc43b837b898dc9c652265ff4992d5b17f2a51b93fcc864dcad927eda87
[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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a1d4a758d0050bb2e842a3c9ec395d0626827119ec775cb3f858d73552b2d5ed
[INFO] running `Command { std: "docker" "start" "-a" "a1d4a758d0050bb2e842a3c9ec395d0626827119ec775cb3f858d73552b2d5ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.171
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling ref-cast v1.0.24
[INFO] [stderr]    Compiling rustix v1.0.5
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]    Compiling getrandom v0.3.2
[INFO] [stderr]    Compiling smallvec v1.14.0
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling crossbeam-channel v0.5.14
[INFO] [stderr]    Compiling float-cmp v0.10.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling tempfile v3.19.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling ref-cast-impl v1.0.24
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling halfbrown v0.3.0
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling value-trait v0.11.0
[INFO] [stderr]    Compiling simd-json v0.15.0
[INFO] [stderr]    Compiling json-mutex-db v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.76s
[INFO] running `Command { std: "docker" "inspect" "a1d4a758d0050bb2e842a3c9ec395d0626827119ec775cb3f858d73552b2d5ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1d4a758d0050bb2e842a3c9ec395d0626827119ec775cb3f858d73552b2d5ed", kill_on_drop: false }`
[INFO] [stdout] a1d4a758d0050bb2e842a3c9ec395d0626827119ec775cb3f858d73552b2d5ed
[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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cf89cf01834a644d8d8e94e0092ab70b8c2cab3357d83cbb62374269aae119a
[INFO] running `Command { std: "docker" "start" "-a" "6cf89cf01834a644d8d8e94e0092ab70b8c2cab3357d83cbb62374269aae119a", kill_on_drop: false }`
[INFO] [stderr]    Compiling json-mutex-db v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stdout]    --> src/lib.rs:748:17
[INFO] [stdout]     |
[INFO] [stdout] 748 |                 (start.elapsed() <= timeout),
[INFO] [stdout]     |                 ^                          ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 748 -                 (start.elapsed() <= timeout),
[INFO] [stdout] 748 +                 start.elapsed() <= timeout,
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.44s
[INFO] running `Command { std: "docker" "inspect" "6cf89cf01834a644d8d8e94e0092ab70b8c2cab3357d83cbb62374269aae119a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cf89cf01834a644d8d8e94e0092ab70b8c2cab3357d83cbb62374269aae119a", kill_on_drop: false }`
[INFO] [stdout] 6cf89cf01834a644d8d8e94e0092ab70b8c2cab3357d83cbb62374269aae119a
[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=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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 34eca1d7e09f6797a9c8c136ad9e141e8ab33b065c1468cab0e94958d96d9078
[INFO] running `Command { std: "docker" "start" "-a" "34eca1d7e09f6797a9c8c136ad9e141e8ab33b065c1468cab0e94958d96d9078", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around `match` scrutinee expression
[INFO] [stderr]    --> src/lib.rs:748:17
[INFO] [stderr]     |
[INFO] [stderr] 748 |                 (start.elapsed() <= timeout),
[INFO] [stderr]     |                 ^                          ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 748 -                 (start.elapsed() <= timeout),
[INFO] [stderr] 748 +                 start.elapsed() <= timeout,
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `json-mutex-db` (lib test) generated 1 warning (run `cargo fix --lib -p json-mutex-db --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/json_mutex_db-403be46c2d8acab3)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::benchmark_multithread_update_async_optimized ... ignored
[INFO] [stdout] test tests::benchmark_save_sync_compact_fast_optimized ... ignored
[INFO] [stdout] test tests::test_async_updates_basic_propagation ... ignored
[INFO] [stdout] test tests::test_atomic_save_prevents_corruption ... FAILED
[INFO] [stdout] test tests::test_jsonmutexdb_new_and_get ... FAILED
[INFO] [stdout] test tests::test_jsonmutexdb_update_and_save_sync_compact_fast ... FAILED
[INFO] [stdout] test tests::test_jsonmutexdb_update_and_save_sync_pretty ... FAILED
[INFO] [stdout] test tests::test_jsonmutexdb_update_and_save_sync_compact_standard ... FAILED
[INFO] [stdout] test tests::test_concurrent_read_write_sync ... ok
[INFO] [stdout] test tests::test_save_async_works ... FAILED
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_atomic_save_prevents_corruption stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::test_atomic_save_prevents_corruption' (17) panicked at src/lib.rs:625:32:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Io(Custom { kind: ReadOnlyFilesystem, error: PathError { path: "/opt/rustwide/workdir/.tmpME4XLR", err: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } } })
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x58217de88b92 - std::backtrace_rs::backtrace::libunwind::trace::h589a96ef7638b383
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x58217de88b92 - std::backtrace_rs::backtrace::trace_unsynchronized::h23a30a7548c40de4
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x58217de88b92 - std::sys::backtrace::_print_fmt::h87dabd6535c8c07a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x58217de88b92 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hffd20ad4e5eca8ab
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x58217de99b6f - core::fmt::rt::Argument::fmt::h75c83e3fd5ce2419
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x58217de99b6f - core::fmt::write::h6d9d3a7cfd7b84f5
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x58217de55803 - std::io::default_write_fmt::he11a713685e2464d
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x58217de55803 - std::io::Write::write_fmt::h9d08f7e050bd2612
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x58217de61b02 - std::sys::backtrace::BacktraceLock::print::hb28797143397220e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x58217de66b0f - std::panicking::default_hook::{{closure}}::h7555113b62983743
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x58217de669a1 - std::panicking::default_hook::h2714b564abe8d914
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x58217ddd443e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0e9de8cceb22406e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   12:     0x58217ddd443e - test::test_main_with_exit_callback::{{closure}}::h8125bd66cf4739d0
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x58217de671ae - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1fd0a0802eaec16b
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   14:     0x58217de671ae - std::panicking::panic_with_hook::h190dc82263685ec5
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x58217de66f7a - std::panicking::panic_handler::{{closure}}::h8b036a1b366643ac
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x58217de61c39 - std::sys::backtrace::__rust_end_short_backtrace::h45affcfc0c830da8
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x58217de48c6d - __rustc[9b67c8562bba447b]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x58217dea3010 - core::panicking::panic_fmt::hc084f85b1e76c16d
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x58217dea25c6 - core::result::unwrap_failed::hf926a4254073b4aa
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/result.rs:1852:5
[INFO] [stdout]   20:     0x58217dd4a639 - core::result::Result<T,E>::unwrap::hddff5f6dc761360e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/result.rs:1223:23
[INFO] [stdout]   21:     0x58217dd4a639 - json_mutex_db::tests::test_atomic_save_prevents_corruption::h1c467f960640be24
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:625:32
[INFO] [stdout]   22:     0x58217dd4ba47 - json_mutex_db::tests::test_atomic_save_prevents_corruption::{{closure}}::h72e469731c67f1d7
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:615:46
[INFO] [stdout]   23:     0x58217dd57586 - core::ops::function::FnOnce::call_once::h3a41c71831f45187
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   24:     0x58217ddd41fb - core::ops::function::FnOnce::call_once::hdbf42be2a49fb464
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   25:     0x58217ddd41fb - test::__rust_begin_short_backtrace::h8ae08814d38cb356
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x58217dde9ce5 - test::run_test_in_process::{{closure}}::h54574ee4f414d690
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x58217dde9ce5 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h01a0b7e7aad1a501
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x58217dde9ce5 - std::panicking::catch_unwind::do_call::h23820e817c5612cd
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x58217dde9ce5 - std::panicking::catch_unwind::h89c73a1febce5587
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x58217dde9ce5 - std::panic::catch_unwind::h6f55caf410861914
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x58217dde9ce5 - test::run_test_in_process::h4db851878e5d3983
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x58217dde9ce5 - test::run_test::{{closure}}::h57e8c5acaceacd24
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x58217ddc06d4 - test::run_test::{{closure}}::he775ccc3a9d3b97e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x58217ddc06d4 - std::sys::backtrace::__rust_begin_short_backtrace::hcd94d85d7765225a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x58217ddc3f1a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha814de8393f07830
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x58217ddc3f1a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8deb00af0abdeaf1
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x58217ddc3f1a - std::panicking::catch_unwind::do_call::h1917979b0c279ea2
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x58217ddc3f1a - std::panicking::catch_unwind::h791ad91fee6ce34e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x58217ddc3f1a - std::panic::catch_unwind::h982b8f40ed9c3cce
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x58217ddc3f1a - std::thread::Builder::spawn_unchecked_::{{closure}}::h545e54700c945db4
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x58217ddc3f1a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb427481a5227d78a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   42:     0x58217de5be0f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h1d452951a81e9d0a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   43:     0x58217de5be0f - std::sys::pal::unix::thread::Thread::new::thread_start::h29c84e109630689a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/pal/unix/thread.rs:118:17
[INFO] [stdout]   44:     0x7e3b8d0acaa4 - <unknown>
[INFO] [stdout]   45:     0x7e3b8d139a34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] Dropping JsonMutexDB (sync)...
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_jsonmutexdb_new_and_get stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::test_jsonmutexdb_new_and_get' (19) panicked at src/lib.rs:491:55:
[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:     0x58217de88b92 - std::backtrace_rs::backtrace::libunwind::trace::h589a96ef7638b383
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x58217de88b92 - std::backtrace_rs::backtrace::trace_unsynchronized::h23a30a7548c40de4
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x58217de88b92 - std::sys::backtrace::_print_fmt::h87dabd6535c8c07a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x58217de88b92 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hffd20ad4e5eca8ab
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x58217de99b6f - core::fmt::rt::Argument::fmt::h75c83e3fd5ce2419
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x58217de99b6f - core::fmt::write::h6d9d3a7cfd7b84f5
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x58217de55803 - std::io::default_write_fmt::he11a713685e2464d
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x58217de55803 - std::io::Write::write_fmt::h9d08f7e050bd2612
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x58217de61b02 - std::sys::backtrace::BacktraceLock::print::hb28797143397220e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x58217de66b0f - std::panicking::default_hook::{{closure}}::h7555113b62983743
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x58217de669a1 - std::panicking::default_hook::h2714b564abe8d914
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x58217ddd443e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0e9de8cceb22406e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   12:     0x58217ddd443e - test::test_main_with_exit_callback::{{closure}}::h8125bd66cf4739d0
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x58217de671ae - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1fd0a0802eaec16b
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   14:     0x58217de671ae - std::panicking::panic_with_hook::h190dc82263685ec5
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x58217de66f7a - std::panicking::panic_handler::{{closure}}::h8b036a1b366643ac
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x58217de61c39 - std::sys::backtrace::__rust_end_short_backtrace::h45affcfc0c830da8
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x58217de48c6d - __rustc[9b67c8562bba447b]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x58217dea3010 - core::panicking::panic_fmt::hc084f85b1e76c16d
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x58217dea25c6 - core::result::unwrap_failed::hf926a4254073b4aa
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/result.rs:1852:5
[INFO] [stdout]   20:     0x58217dd4732b - core::result::Result<T,E>::unwrap::hd33e2b4160712ed8
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/result.rs:1223:23
[INFO] [stdout]   21:     0x58217dd4732b - json_mutex_db::tests::test_jsonmutexdb_new_and_get::he782135e93b217a6
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:491:55
[INFO] [stdout]   22:     0x58217dd47657 - json_mutex_db::tests::test_jsonmutexdb_new_and_get::{{closure}}::h9d70e7df91243f6d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:481:38
[INFO] [stdout]   23:     0x58217dd57656 - core::ops::function::FnOnce::call_once::h4a059b9db69d0d9b
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   24:     0x58217ddd41fb - core::ops::function::FnOnce::call_once::hdbf42be2a49fb464
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   25:     0x58217ddd41fb - test::__rust_begin_short_backtrace::h8ae08814d38cb356
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x58217dde9ce5 - test::run_test_in_process::{{closure}}::h54574ee4f414d690
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x58217dde9ce5 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h01a0b7e7aad1a501
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x58217dde9ce5 - std::panicking::catch_unwind::do_call::h23820e817c5612cd
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x58217dde9ce5 - std::panicking::catch_unwind::h89c73a1febce5587
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x58217dde9ce5 - std::panic::catch_unwind::h6f55caf410861914
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x58217dde9ce5 - test::run_test_in_process::h4db851878e5d3983
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x58217dde9ce5 - test::run_test::{{closure}}::h57e8c5acaceacd24
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x58217ddc06d4 - test::run_test::{{closure}}::he775ccc3a9d3b97e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x58217ddc06d4 - std::sys::backtrace::__rust_begin_short_backtrace::hcd94d85d7765225a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x58217ddc3f1a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha814de8393f07830
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x58217ddc3f1a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8deb00af0abdeaf1
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x58217ddc3f1a - std::panicking::catch_unwind::do_call::h1917979b0c279ea2
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x58217ddc3f1a - std::panicking::catch_unwind::h791ad91fee6ce34e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x58217ddc3f1a - std::panic::catch_unwind::h982b8f40ed9c3cce
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x58217ddc3f1a - std::thread::Builder::spawn_unchecked_::{{closure}}::h545e54700c945db4
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x58217ddc3f1a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb427481a5227d78a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   42:     0x58217de5be0f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h1d452951a81e9d0a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   43:     0x58217de5be0f - std::sys::pal::unix::thread::Thread::new::thread_start::h29c84e109630689a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/pal/unix/thread.rs:118:17
[INFO] [stdout]   44:     0x7e3b8d0acaa4 - <unknown>
[INFO] [stdout]   45:     0x7e3b8d139a34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] Dropping JsonMutexDB (sync)...
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_jsonmutexdb_update_and_save_sync_compact_fast stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::test_jsonmutexdb_update_and_save_sync_compact_fast' (20) panicked at src/lib.rs:511:14:
[INFO] [stdout] Failed to save JSON data sync (compact/fast): Io(Custom { kind: ReadOnlyFilesystem, error: PathError { path: "/opt/rustwide/workdir/.tmpnMSXZP", err: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } } })
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x58217de88b92 - std::backtrace_rs::backtrace::libunwind::trace::h589a96ef7638b383
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x58217de88b92 - std::backtrace_rs::backtrace::trace_unsynchronized::h23a30a7548c40de4
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x58217de88b92 - std::sys::backtrace::_print_fmt::h87dabd6535c8c07a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x58217de88b92 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hffd20ad4e5eca8ab
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x58217de99b6f - core::fmt::rt::Argument::fmt::h75c83e3fd5ce2419
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x58217de99b6f - core::fmt::write::h6d9d3a7cfd7b84f5
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x58217de55803 - std::io::default_write_fmt::he11a713685e2464d
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x58217de55803 - std::io::Write::write_fmt::h9d08f7e050bd2612
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x58217de61b02 - std::sys::backtrace::BacktraceLock::print::hb28797143397220e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x58217de66b0f - std::panicking::default_hook::{{closure}}::h7555113b62983743
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x58217de669a1 - std::panicking::default_hook::h2714b564abe8d914
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x58217ddd443e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0e9de8cceb22406e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   12:     0x58217ddd443e - test::test_main_with_exit_callback::{{closure}}::h8125bd66cf4739d0
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x58217de671ae - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1fd0a0802eaec16b
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   14:     0x58217de671ae - std::panicking::panic_with_hook::h190dc82263685ec5
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x58217de66f7a - std::panicking::panic_handler::{{closure}}::h8b036a1b366643ac
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x58217de61c39 - std::sys::backtrace::__rust_end_short_backtrace::h45affcfc0c830da8
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x58217de48c6d - __rustc[9b67c8562bba447b]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x58217dea3010 - core::panicking::panic_fmt::hc084f85b1e76c16d
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x58217dea25c6 - core::result::unwrap_failed::hf926a4254073b4aa
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/result.rs:1852:5
[INFO] [stdout]   20:     0x58217dd38e4a - core::result::Result<T,E>::expect::h58581a48f8a21e68
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/result.rs:1175:23
[INFO] [stdout]   21:     0x58217dd4ee16 - json_mutex_db::tests::test_jsonmutexdb_update_and_save_sync_compact_fast::ha194696405d92494
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:511:14
[INFO] [stdout]   22:     0x58217dd4f147 - json_mutex_db::tests::test_jsonmutexdb_update_and_save_sync_compact_fast::{{closure}}::h40c7af689066d277
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:499:60
[INFO] [stdout]   23:     0x58217dd57616 - core::ops::function::FnOnce::call_once::h437684e6f98766b4
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   24:     0x58217ddd41fb - core::ops::function::FnOnce::call_once::hdbf42be2a49fb464
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   25:     0x58217ddd41fb - test::__rust_begin_short_backtrace::h8ae08814d38cb356
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x58217dde9ce5 - test::run_test_in_process::{{closure}}::h54574ee4f414d690
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x58217dde9ce5 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h01a0b7e7aad1a501
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x58217dde9ce5 - std::panicking::catch_unwind::do_call::h23820e817c5612cd
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x58217dde9ce5 - std::panicking::catch_unwind::h89c73a1febce5587
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x58217dde9ce5 - std::panic::catch_unwind::h6f55caf410861914
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x58217dde9ce5 - test::run_test_in_process::h4db851878e5d3983
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x58217dde9ce5 - test::run_test::{{closure}}::h57e8c5acaceacd24
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x58217ddc06d4 - test::run_test::{{closure}}::he775ccc3a9d3b97e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x58217ddc06d4 - std::sys::backtrace::__rust_begin_short_backtrace::hcd94d85d7765225a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x58217ddc3f1a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha814de8393f07830
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x58217ddc3f1a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8deb00af0abdeaf1
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x58217ddc3f1a - std::panicking::catch_unwind::do_call::h1917979b0c279ea2
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x58217ddc3f1a - std::panicking::catch_unwind::h791ad91fee6ce34e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x58217ddc3f1a - std::panic::catch_unwind::h982b8f40ed9c3cce
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x58217ddc3f1a - std::thread::Builder::spawn_unchecked_::{{closure}}::h545e54700c945db4
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x58217ddc3f1a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb427481a5227d78a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   42:     0x58217de5be0f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h1d452951a81e9d0a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   43:     0x58217de5be0f - std::sys::pal::unix::thread::Thread::new::thread_start::h29c84e109630689a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/pal/unix/thread.rs:118:17
[INFO] [stdout]   44:     0x7e3b8d0acaa4 - <unknown>
[INFO] [stdout]   45:     0x7e3b8d139a34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] Dropping JsonMutexDB (sync)...
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_jsonmutexdb_update_and_save_sync_pretty stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::test_jsonmutexdb_update_and_save_sync_pretty' (25) panicked at src/lib.rs:566:14:
[INFO] [stdout] Failed to save JSON data sync (pretty): Io(Custom { kind: ReadOnlyFilesystem, error: PathError { path: "/opt/rustwide/workdir/.tmp64di5z", err: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } } })
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x58217de88b92 - std::backtrace_rs::backtrace::libunwind::trace::h589a96ef7638b383
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x58217de88b92 - std::backtrace_rs::backtrace::trace_unsynchronized::h23a30a7548c40de4
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x58217de88b92 - std::sys::backtrace::_print_fmt::h87dabd6535c8c07a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x58217de88b92 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hffd20ad4e5eca8ab
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x58217de99b6f - core::fmt::rt::Argument::fmt::h75c83e3fd5ce2419
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x58217de99b6f - core::fmt::write::h6d9d3a7cfd7b84f5
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x58217de55803 - std::io::default_write_fmt::he11a713685e2464d
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x58217de55803 - std::io::Write::write_fmt::h9d08f7e050bd2612
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x58217de61b02 - std::sys::backtrace::BacktraceLock::print::hb28797143397220e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x58217de66b0f - std::panicking::default_hook::{{closure}}::h7555113b62983743
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x58217de669a1 - std::panicking::default_hook::h2714b564abe8d914
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x58217ddd443e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0e9de8cceb22406e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   12:     0x58217ddd443e - test::test_main_with_exit_callback::{{closure}}::h8125bd66cf4739d0
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x58217de671ae - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1fd0a0802eaec16b
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   14:     0x58217de671ae - std::panicking::panic_with_hook::h190dc82263685ec5
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x58217de66f7a - std::panicking::panic_handler::{{closure}}::h8b036a1b366643ac
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x58217de61c39 - std::sys::backtrace::__rust_end_short_backtrace::h45affcfc0c830da8
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x58217de48c6d - __rustc[9b67c8562bba447b]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x58217dea3010 - core::panicking::panic_fmt::hc084f85b1e76c16d
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x58217dea25c6 - core::result::unwrap_failed::hf926a4254073b4aa
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/result.rs:1852:5
[INFO] [stdout]   20:     0x58217dd38e4a - core::result::Result<T,E>::expect::h58581a48f8a21e68
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/result.rs:1175:23
[INFO] [stdout]   21:     0x58217dd4de78 - json_mutex_db::tests::test_jsonmutexdb_update_and_save_sync_pretty::h28e55d5556762a31
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:566:14
[INFO] [stdout]   22:     0x58217dd4e257 - json_mutex_db::tests::test_jsonmutexdb_update_and_save_sync_pretty::{{closure}}::hf56f5d6c79bafe31
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:554:54
[INFO] [stdout]   23:     0x58217dd57796 - core::ops::function::FnOnce::call_once::hd192ac892c1fc2cf
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   24:     0x58217ddd41fb - core::ops::function::FnOnce::call_once::hdbf42be2a49fb464
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   25:     0x58217ddd41fb - test::__rust_begin_short_backtrace::h8ae08814d38cb356
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x58217dde9ce5 - test::run_test_in_process::{{closure}}::h54574ee4f414d690
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x58217dde9ce5 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h01a0b7e7aad1a501
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x58217dde9ce5 - std::panicking::catch_unwind::do_call::h23820e817c5612cd
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x58217dde9ce5 - std::panicking::catch_unwind::h89c73a1febce5587
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x58217dde9ce5 - std::panic::catch_unwind::h6f55caf410861914
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x58217dde9ce5 - test::run_test_in_process::h4db851878e5d3983
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x58217dde9ce5 - test::run_test::{{closure}}::h57e8c5acaceacd24
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x58217ddc06d4 - test::run_test::{{closure}}::he775ccc3a9d3b97e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x58217ddc06d4 - std::sys::backtrace::__rust_begin_short_backtrace::hcd94d85d7765225a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x58217ddc3f1a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha814de8393f07830
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x58217ddc3f1a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8deb00af0abdeaf1
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x58217ddc3f1a - std::panicking::catch_unwind::do_call::h1917979b0c279ea2
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x58217ddc3f1a - std::panicking::catch_unwind::h791ad91fee6ce34e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x58217ddc3f1a - std::panic::catch_unwind::h982b8f40ed9c3cce
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x58217ddc3f1a - std::thread::Builder::spawn_unchecked_::{{closure}}::h545e54700c945db4
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x58217ddc3f1a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb427481a5227d78a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   42:     0x58217de5be0f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h1d452951a81e9d0a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   43:     0x58217de5be0f - std::sys::pal::unix::thread::Thread::new::thread_start::h29c84e109630689a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/pal/unix/thread.rs:118:17
[INFO] [stdout]   44:     0x7e3b8d0acaa4 - <unknown>
[INFO] [stdout]   45:     0x7e3b8d139a34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] Dropping JsonMutexDB (sync)...
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_jsonmutexdb_update_and_save_sync_compact_standard stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::test_jsonmutexdb_update_and_save_sync_compact_standard' (22) panicked at src/lib.rs:540:14:
[INFO] [stdout] Failed to save JSON data sync (compact/standard): Io(Custom { kind: ReadOnlyFilesystem, error: PathError { path: "/opt/rustwide/workdir/.tmpJbzLG2", err: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } } })
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x58217de88b92 - std::backtrace_rs::backtrace::libunwind::trace::h589a96ef7638b383
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x58217de88b92 - std::backtrace_rs::backtrace::trace_unsynchronized::h23a30a7548c40de4
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x58217de88b92 - std::sys::backtrace::_print_fmt::h87dabd6535c8c07a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x58217de88b92 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hffd20ad4e5eca8ab
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x58217de99b6f - core::fmt::rt::Argument::fmt::h75c83e3fd5ce2419
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x58217de99b6f - core::fmt::write::h6d9d3a7cfd7b84f5
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x58217de55803 - std::io::default_write_fmt::he11a713685e2464d
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x58217de55803 - std::io::Write::write_fmt::h9d08f7e050bd2612
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x58217de61b02 - std::sys::backtrace::BacktraceLock::print::hb28797143397220e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x58217de66b0f - std::panicking::default_hook::{{closure}}::h7555113b62983743
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x58217de669a1 - std::panicking::default_hook::h2714b564abe8d914
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x58217ddd443e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0e9de8cceb22406e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   12:     0x58217ddd443e - test::test_main_with_exit_callback::{{closure}}::h8125bd66cf4739d0
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x58217de671ae - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1fd0a0802eaec16b
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   14:     0x58217de671ae - std::panicking::panic_with_hook::h190dc82263685ec5
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x58217de66f7a - std::panicking::panic_handler::{{closure}}::h8b036a1b366643ac
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x58217de61c39 - std::sys::backtrace::__rust_end_short_backtrace::h45affcfc0c830da8
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x58217de48c6d - __rustc[9b67c8562bba447b]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x58217dea3010 - core::panicking::panic_fmt::hc084f85b1e76c16d
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x58217dea25c6 - core::result::unwrap_failed::hf926a4254073b4aa
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/result.rs:1852:5
[INFO] [stdout]   20:     0x58217dd38e4a - core::result::Result<T,E>::expect::h58581a48f8a21e68
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/result.rs:1175:23
[INFO] [stdout]   21:     0x58217dd4fdb3 - json_mutex_db::tests::test_jsonmutexdb_update_and_save_sync_compact_standard::h654896edfaa05d8e
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:540:14
[INFO] [stdout]   22:     0x58217dd50087 - json_mutex_db::tests::test_jsonmutexdb_update_and_save_sync_compact_standard::{{closure}}::h2e290b7101064ddd
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:528:64
[INFO] [stdout]   23:     0x58217dd57876 - core::ops::function::FnOnce::call_once::hec88529f2492c649
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   24:     0x58217ddd41fb - core::ops::function::FnOnce::call_once::hdbf42be2a49fb464
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   25:     0x58217ddd41fb - test::__rust_begin_short_backtrace::h8ae08814d38cb356
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x58217dde9ce5 - test::run_test_in_process::{{closure}}::h54574ee4f414d690
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x58217dde9ce5 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h01a0b7e7aad1a501
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x58217dde9ce5 - std::panicking::catch_unwind::do_call::h23820e817c5612cd
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x58217dde9ce5 - std::panicking::catch_unwind::h89c73a1febce5587
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x58217dde9ce5 - std::panic::catch_unwind::h6f55caf410861914
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x58217dde9ce5 - test::run_test_in_process::h4db851878e5d3983
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x58217dde9ce5 - test::run_test::{{closure}}::h57e8c5acaceacd24
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x58217ddc06d4 - test::run_test::{{closure}}::he775ccc3a9d3b97e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x58217ddc06d4 - std::sys::backtrace::__rust_begin_short_backtrace::hcd94d85d7765225a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x58217ddc3f1a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha814de8393f07830
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x58217ddc3f1a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8deb00af0abdeaf1
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x58217ddc3f1a - std::panicking::catch_unwind::do_call::h1917979b0c279ea2
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x58217ddc3f1a - std::panicking::catch_unwind::h791ad91fee6ce34e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x58217ddc3f1a - std::panic::catch_unwind::h982b8f40ed9c3cce
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x58217ddc3f1a - std::thread::Builder::spawn_unchecked_::{{closure}}::h545e54700c945db4
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x58217ddc3f1a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb427481a5227d78a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   42:     0x58217de5be0f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h1d452951a81e9d0a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   43:     0x58217de5be0f - std::sys::pal::unix::thread::Thread::new::thread_start::h29c84e109630689a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/pal/unix/thread.rs:118:17
[INFO] [stdout]   44:     0x7e3b8d0acaa4 - <unknown>
[INFO] [stdout]   45:     0x7e3b8d139a34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] Dropping JsonMutexDB (sync)...
[INFO] [stdout] 
[INFO] [stdout] ---- tests::test_save_async_works stdout ----
[INFO] [stdout] Async save failed: Io(Custom { kind: ReadOnlyFilesystem, error: PathError { path: "/opt/rustwide/workdir/.tmplMcuJC", err: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } } })
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::test_save_async_works' (27) panicked at src/lib.rs:605:42:
[INFO] [stdout] Failed to read file after async save: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x58217de88b92 - std::backtrace_rs::backtrace::libunwind::trace::h589a96ef7638b383
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x58217de88b92 - std::backtrace_rs::backtrace::trace_unsynchronized::h23a30a7548c40de4
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x58217de88b92 - std::sys::backtrace::_print_fmt::h87dabd6535c8c07a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x58217de88b92 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hffd20ad4e5eca8ab
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x58217de99b6f - core::fmt::rt::Argument::fmt::h75c83e3fd5ce2419
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x58217de99b6f - core::fmt::write::h6d9d3a7cfd7b84f5
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x58217de55803 - std::io::default_write_fmt::he11a713685e2464d
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x58217de55803 - std::io::Write::write_fmt::h9d08f7e050bd2612
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x58217de61b02 - std::sys::backtrace::BacktraceLock::print::hb28797143397220e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x58217de66b0f - std::panicking::default_hook::{{closure}}::h7555113b62983743
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x58217de669a1 - std::panicking::default_hook::h2714b564abe8d914
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x58217ddd443e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0e9de8cceb22406e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   12:     0x58217ddd443e - test::test_main_with_exit_callback::{{closure}}::h8125bd66cf4739d0
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x58217de671ae - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h1fd0a0802eaec16b
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1999:9
[INFO] [stdout]   14:     0x58217de671ae - std::panicking::panic_with_hook::h190dc82263685ec5
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x58217de66f7a - std::panicking::panic_handler::{{closure}}::h8b036a1b366643ac
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x58217de61c39 - std::sys::backtrace::__rust_end_short_backtrace::h45affcfc0c830da8
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x58217de48c6d - __rustc[9b67c8562bba447b]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x58217dea3010 - core::panicking::panic_fmt::hc084f85b1e76c16d
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x58217dea25c6 - core::result::unwrap_failed::hf926a4254073b4aa
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/result.rs:1852:5
[INFO] [stdout]   20:     0x58217dd390ac - core::result::Result<T,E>::expect::h85999ca277a09853
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/result.rs:1175:23
[INFO] [stdout]   21:     0x58217dd46a06 - json_mutex_db::tests::test_save_async_works::h6d1975e1cfc807f9
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:605:42
[INFO] [stdout]   22:     0x58217dd46cf7 - json_mutex_db::tests::test_save_async_works::{{closure}}::h43b8a64228c6d1d7
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:584:31
[INFO] [stdout]   23:     0x58217dd574f6 - core::ops::function::FnOnce::call_once::h2f2f709e3910a408
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   24:     0x58217ddd41fb - core::ops::function::FnOnce::call_once::hdbf42be2a49fb464
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   25:     0x58217ddd41fb - test::__rust_begin_short_backtrace::h8ae08814d38cb356
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x58217dde9ce5 - test::run_test_in_process::{{closure}}::h54574ee4f414d690
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x58217dde9ce5 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h01a0b7e7aad1a501
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x58217dde9ce5 - std::panicking::catch_unwind::do_call::h23820e817c5612cd
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x58217dde9ce5 - std::panicking::catch_unwind::h89c73a1febce5587
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x58217dde9ce5 - std::panic::catch_unwind::h6f55caf410861914
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x58217dde9ce5 - test::run_test_in_process::h4db851878e5d3983
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x58217dde9ce5 - test::run_test::{{closure}}::h57e8c5acaceacd24
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x58217ddc06d4 - test::run_test::{{closure}}::he775ccc3a9d3b97e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x58217ddc06d4 - std::sys::backtrace::__rust_begin_short_backtrace::hcd94d85d7765225a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x58217ddc3f1a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha814de8393f07830
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x58217ddc3f1a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8deb00af0abdeaf1
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x58217ddc3f1a - std::panicking::catch_unwind::do_call::h1917979b0c279ea2
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x58217ddc3f1a - std::panicking::catch_unwind::h791ad91fee6ce34e
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x58217ddc3f1a - std::panic::catch_unwind::h982b8f40ed9c3cce
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x58217ddc3f1a - std::thread::Builder::spawn_unchecked_::{{closure}}::h545e54700c945db4
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x58217ddc3f1a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb427481a5227d78a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/core/src/ops/function.rs:253:5
[INFO] [stdout]   42:     0x58217de5be0f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h1d452951a81e9d0a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   43:     0x58217de5be0f - std::sys::pal::unix::thread::Thread::new::thread_start::h29c84e109630689a
[INFO] [stdout]                                at /rustc/b83b707f97d809763b7861afa7638871f3339a33/library/std/src/sys/pal/unix/thread.rs:118:17
[INFO] [stdout]   44:     0x7e3b8d0acaa4 - <unknown>
[INFO] [stdout]   45:     0x7e3b8d139a34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] Dropping JsonMutexDB (sync)...
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::test_atomic_save_prevents_corruption
[INFO] [stdout]     tests::test_jsonmutexdb_new_and_get
[INFO] [stdout]     tests::test_jsonmutexdb_update_and_save_sync_compact_fast
[INFO] [stdout]     tests::test_jsonmutexdb_update_and_save_sync_compact_standard
[INFO] [stdout]     tests::test_jsonmutexdb_update_and_save_sync_pretty
[INFO] [stdout]     tests::test_save_async_works
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 6 failed; 3 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "34eca1d7e09f6797a9c8c136ad9e141e8ab33b065c1468cab0e94958d96d9078", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34eca1d7e09f6797a9c8c136ad9e141e8ab33b065c1468cab0e94958d96d9078", kill_on_drop: false }`
[INFO] [stdout] 34eca1d7e09f6797a9c8c136ad9e141e8ab33b065c1468cab0e94958d96d9078