[INFO] fetching crate fcntl 0.1.0...
[INFO] testing fcntl-0.1.0 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate fcntl 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate fcntl 0.1.0
[INFO] finished tweaking crates.io crate fcntl 0.1.0
[INFO] tweaked toml for crates.io crate fcntl 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fcntl 0.1.0 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 1 package to highest compatible version
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a01f38f46016e9cdc3fc2fd11a88aebed572228349d6dffbb94b753bcbdafa6f
[INFO] running `Command { std: "docker" "start" "a01f38f46016e9cdc3fc2fd11a88aebed572228349d6dffbb94b753bcbdafa6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a01f38f46016e9cdc3fc2fd11a88aebed572228349d6dffbb94b753bcbdafa6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a01f38f46016e9cdc3fc2fd11a88aebed572228349d6dffbb94b753bcbdafa6f" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a01f38f46016e9cdc3fc2fd11a88aebed572228349d6dffbb94b753bcbdafa6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a01f38f46016e9cdc3fc2fd11a88aebed572228349d6dffbb94b753bcbdafa6f" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling fcntl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:132:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 FcntlArg::Flock(flock) => {
[INFO] [stdout]     |                 ---------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 132 |                 _ => Err(FcntlError::InvalidArgForCmd),
[INFO] [stdout]     |                 ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |         Ok(FcntlArg::Flock(result)) => {
[INFO] [stdout]     |         --------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 173 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 211 |         Ok(FcntlArg::Flock(_result)) => Ok(true),
[INFO] [stdout]     |         ---------------------------- matches all the relevant values
[INFO] [stdout] 212 |         // This should not happen, unless we have a bug..
[INFO] [stdout] 213 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |         Ok(FcntlArg::Flock(_result)) => Ok(true),
[INFO] [stdout]     |         ---------------------------- matches all the relevant values
[INFO] [stdout] 252 |         // This should not happen, unless we have a bug..
[INFO] [stdout] 253 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "a01f38f46016e9cdc3fc2fd11a88aebed572228349d6dffbb94b753bcbdafa6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a01f38f46016e9cdc3fc2fd11a88aebed572228349d6dffbb94b753bcbdafa6f" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling fcntl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:132:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 FcntlArg::Flock(flock) => {
[INFO] [stdout]     |                 ---------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 132 |                 _ => Err(FcntlError::InvalidArgForCmd),
[INFO] [stdout]     |                 ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |         Ok(FcntlArg::Flock(result)) => {
[INFO] [stdout]     |         --------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 173 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 211 |         Ok(FcntlArg::Flock(_result)) => Ok(true),
[INFO] [stdout]     |         ---------------------------- matches all the relevant values
[INFO] [stdout] 212 |         // This should not happen, unless we have a bug..
[INFO] [stdout] 213 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |         Ok(FcntlArg::Flock(_result)) => Ok(true),
[INFO] [stdout]     |         ---------------------------- matches all the relevant values
[INFO] [stdout] 252 |         // This should not happen, unless we have a bug..
[INFO] [stdout] 253 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:132:17
[INFO] [stdout]     |
[INFO] [stdout] 116 |                 FcntlArg::Flock(flock) => {
[INFO] [stdout]     |                 ---------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 132 |                 _ => Err(FcntlError::InvalidArgForCmd),
[INFO] [stdout]     |                 ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 168 |         Ok(FcntlArg::Flock(result)) => {
[INFO] [stdout]     |         --------------------------- matches all the relevant values
[INFO] [stdout] ...
[INFO] [stdout] 173 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 211 |         Ok(FcntlArg::Flock(_result)) => Ok(true),
[INFO] [stdout]     |         ---------------------------- matches all the relevant values
[INFO] [stdout] 212 |         // This should not happen, unless we have a bug..
[INFO] [stdout] 213 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |         Ok(FcntlArg::Flock(_result)) => Ok(true),
[INFO] [stdout]     |         ---------------------------- matches all the relevant values
[INFO] [stdout] 252 |         // This should not happen, unless we have a bug..
[INFO] [stdout] 253 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^ no value can reach this
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file`
[INFO] [stdout]    --> src/lib.rs:369:17
[INFO] [stdout]     |
[INFO] [stdout] 369 |             let file = OpenOptions::new().write(true).create(true).open(LOCK_FILE_NAME).unwrap();
[INFO] [stdout]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "a01f38f46016e9cdc3fc2fd11a88aebed572228349d6dffbb94b753bcbdafa6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a01f38f46016e9cdc3fc2fd11a88aebed572228349d6dffbb94b753bcbdafa6f" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:132:17
[INFO] [stderr]     |
[INFO] [stderr] 116 |                 FcntlArg::Flock(flock) => {
[INFO] [stderr]     |                 ---------------------- matches all the relevant values
[INFO] [stderr] ...
[INFO] [stderr] 132 |                 _ => Err(FcntlError::InvalidArgForCmd),
[INFO] [stderr]     |                 ^ no value can reach this
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:173:9
[INFO] [stderr]     |
[INFO] [stderr] 168 |         Ok(FcntlArg::Flock(result)) => {
[INFO] [stderr]     |         --------------------------- matches all the relevant values
[INFO] [stderr] ...
[INFO] [stderr] 173 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stderr]     |         ^^^^^ no value can reach this
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:213:9
[INFO] [stderr]     |
[INFO] [stderr] 211 |         Ok(FcntlArg::Flock(_result)) => Ok(true),
[INFO] [stderr]     |         ---------------------------- matches all the relevant values
[INFO] [stderr] 212 |         // This should not happen, unless we have a bug..
[INFO] [stderr] 213 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stderr]     |         ^^^^^ no value can reach this
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:253:9
[INFO] [stderr]     |
[INFO] [stderr] 251 |         Ok(FcntlArg::Flock(_result)) => Ok(true),
[INFO] [stderr]     |         ---------------------------- matches all the relevant values
[INFO] [stderr] 252 |         // This should not happen, unless we have a bug..
[INFO] [stderr] 253 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stderr]     |         ^^^^^ no value can reach this
[INFO] [stderr] 
[INFO] [stderr] warning: `fcntl` (lib) generated 4 warnings
[INFO] [stderr] warning: unused variable: `file`
[INFO] [stderr]    --> src/lib.rs:369:17
[INFO] [stderr]     |
[INFO] [stderr] 369 |             let file = OpenOptions::new().write(true).create(true).open(LOCK_FILE_NAME).unwrap();
[INFO] [stderr]     |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_file`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `fcntl` (lib test) generated 5 warnings (4 duplicates) (run `cargo fix --lib -p fcntl --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/build/fcntl/8ae1619f540fd530/out/fcntl-8ae1619f540fd530)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::check_cmd_conversion ... ok
[INFO] [stdout] test tests::check_file_locking_simple ... FAILED
[INFO] [stdout] test tests::ensure_conversions_dont_panic ... ok
[INFO] [stdout] test tests::lock_file_simple ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::check_file_locking_simple stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::check_file_locking_simple' (147) panicked at src/lib.rs:352:89:
[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:     0x5891da681831 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5891da69578a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5891da685a4c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5891da65dbb6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5891da679de9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5891da6163e0 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5891da679fa2 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5891da65dc62 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5891da6568c9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5891da65e86d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5891da695ebc - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5891da695c92 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x5891da609779 - <fcntl[de587f16e8f7e865]::tests::check_file_locking_simple::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x5891da60982b - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x5891da616a05 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x5891da6102f4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x5891da619a92 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x5891da68108f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x7be709fa0dfa - <unknown>
[INFO] [stdout]   19:     0x7be70a0343d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- tests::lock_file_simple stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::lock_file_simple' (149) panicked at src/lib.rs:369:89:
[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:     0x5891da681831 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stdout]    1:     0x5891da69578a - core[a373ad73a504971]::fmt::write
[INFO] [stdout]    2:     0x5891da685a4c - <alloc[2e1b2a31b91974c5]::vec::Vec<u8> as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stdout]    3:     0x5891da65dbb6 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stdout]    4:     0x5891da679de9 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stdout]    5:     0x5891da6163e0 - test[aada8e7e76ba119b]::test_main_inner::{closure#0}
[INFO] [stdout]    6:     0x5891da679fa2 - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stdout]    7:     0x5891da65dc62 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stdout]    8:     0x5891da6568c9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]    9:     0x5891da65e86d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stdout]   10:     0x5891da695ebc - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stdout]   11:     0x5891da695c92 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stdout]   12:     0x5891da60952f - <fcntl[de587f16e8f7e865]::tests::lock_file_simple::{closure#0} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]   13:     0x5891da60982b - test[aada8e7e76ba119b]::__rust_begin_short_backtrace::<core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>, fn() -> core[a373ad73a504971]::result::Result<(), alloc[2e1b2a31b91974c5]::string::String>>
[INFO] [stdout]   14:     0x5891da616a05 - test[aada8e7e76ba119b]::run_test::{closure#0}
[INFO] [stdout]   15:     0x5891da6102f4 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>
[INFO] [stdout]   16:     0x5891da619a92 - <std[617be2ca0a6fd877]::thread::lifecycle::spawn_unchecked<test[aada8e7e76ba119b]::run_test::{closure#1}, ()>::{closure#1} as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]   17:     0x5891da68108f - <std[617be2ca0a6fd877]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]   18:     0x7be709fa0dfa - <unknown>
[INFO] [stdout]   19:     0x7be70a0343d4 - clone
[INFO] [stdout]   20:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::check_file_locking_simple
[INFO] [stdout]     tests::lock_file_simple
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "a01f38f46016e9cdc3fc2fd11a88aebed572228349d6dffbb94b753bcbdafa6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a01f38f46016e9cdc3fc2fd11a88aebed572228349d6dffbb94b753bcbdafa6f", kill_on_drop: false }`
[INFO] [stdout] a01f38f46016e9cdc3fc2fd11a88aebed572228349d6dffbb94b753bcbdafa6f
