[INFO] fetching crate fcntl 0.1.0...
[INFO] testing fcntl-0.1.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate fcntl 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate fcntl 0.1.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b68ac478af889045db03a8873bec1040139a04ba0ae8dc2737c07f004f06e45
[INFO] running `Command { std: "docker" "start" "-a" "4b68ac478af889045db03a8873bec1040139a04ba0ae8dc2737c07f004f06e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b68ac478af889045db03a8873bec1040139a04ba0ae8dc2737c07f004f06e45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b68ac478af889045db03a8873bec1040139a04ba0ae8dc2737c07f004f06e45", kill_on_drop: false }`
[INFO] [stdout] 4b68ac478af889045db03a8873bec1040139a04ba0ae8dc2737c07f004f06e45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b31d4c7776f3dfbfbcddaea00acc40d8c41436a4cf233e4b2cb1a1f297023cad
[INFO] running `Command { std: "docker" "start" "-a" "b31d4c7776f3dfbfbcddaea00acc40d8c41436a4cf233e4b2cb1a1f297023cad", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.98
[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] 132 |                 _ => Err(FcntlError::InvalidArgForCmd),
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 253 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.83s
[INFO] running `Command { std: "docker" "inspect" "b31d4c7776f3dfbfbcddaea00acc40d8c41436a4cf233e4b2cb1a1f297023cad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b31d4c7776f3dfbfbcddaea00acc40d8c41436a4cf233e4b2cb1a1f297023cad", kill_on_drop: false }`
[INFO] [stdout] b31d4c7776f3dfbfbcddaea00acc40d8c41436a4cf233e4b2cb1a1f297023cad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8ab8cf7a0b92749313f57bf4e8f691ca2d3bd0e5a195b944e7e29d454be4215
[INFO] running `Command { std: "docker" "start" "-a" "b8ab8cf7a0b92749313f57bf4e8f691ca2d3bd0e5a195b944e7e29d454be4215", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 132 |                 _ => Err(FcntlError::InvalidArgForCmd),
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 253 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:132:17
[INFO] [stdout]     |
[INFO] [stdout] 132 |                 _ => Err(FcntlError::InvalidArgForCmd),
[INFO] [stdout]     |                 ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:173:9
[INFO] [stdout]     |
[INFO] [stdout] 173 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:213:9
[INFO] [stdout]     |
[INFO] [stdout] 213 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/lib.rs:253:9
[INFO] [stdout]     |
[INFO] [stdout] 253 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stdout]     |         ^^^^^
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.19s
[INFO] running `Command { std: "docker" "inspect" "b8ab8cf7a0b92749313f57bf4e8f691ca2d3bd0e5a195b944e7e29d454be4215", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8ab8cf7a0b92749313f57bf4e8f691ca2d3bd0e5a195b944e7e29d454be4215", kill_on_drop: false }`
[INFO] [stdout] b8ab8cf7a0b92749313f57bf4e8f691ca2d3bd0e5a195b944e7e29d454be4215
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a76b32a59721780d4828df45b4d63b1e76a18579107fd883fee23f3e4ef61bc7
[INFO] running `Command { std: "docker" "start" "-a" "a76b32a59721780d4828df45b4d63b1e76a18579107fd883fee23f3e4ef61bc7", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:132:17
[INFO] [stderr]     |
[INFO] [stderr] 132 |                 _ => Err(FcntlError::InvalidArgForCmd),
[INFO] [stderr]     |                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:173:9
[INFO] [stderr]     |
[INFO] [stderr] 173 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:213:9
[INFO] [stderr]     |
[INFO] [stderr] 213 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:253:9
[INFO] [stderr]     |
[INFO] [stderr] 253 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:132:17
[INFO] [stderr]     |
[INFO] [stderr] 132 |                 _ => Err(FcntlError::InvalidArgForCmd),
[INFO] [stderr]     |                 ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:173:9
[INFO] [stderr]     |
[INFO] [stderr] 173 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:213:9
[INFO] [stderr]     |
[INFO] [stderr] 213 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/lib.rs:253:9
[INFO] [stderr]     |
[INFO] [stderr] 253 |         Ok(_) => Err(FcntlError::Internal),
[INFO] [stderr]     |         ^^^^^
[INFO] [stderr] 
[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)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/fcntl-107279123edfbd86)
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::ensure_conversions_dont_panic ... ok
[INFO] [stdout] test tests::check_cmd_conversion ... ok
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] [stdout] test tests::lock_file_simple ... FAILED
[INFO] [stdout] test tests::check_file_locking_simple ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::lock_file_simple stdout ----
[INFO] [stdout] thread 'tests::lock_file_simple' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }', src/lib.rs:369:89
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x556b6d736d40 - std::backtrace_rs::backtrace::libunwind::trace::h706b838f5bbd876b
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x556b6d736d40 - std::backtrace_rs::backtrace::trace_unsynchronized::hc15f29ae7822b7b8
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x556b6d736d40 - std::sys_common::backtrace::_print_fmt::h7c580c971f91926c
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x556b6d736d40 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2a772198c4032452
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x556b6d7596dc - core::fmt::write::h9a6d9c74526a6c1b
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/fmt/mod.rs:1115:17
[INFO] [stdout]    5:     0x556b6d733da5 - std::io::Write::write_fmt::h583dff5009d01a9f
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/io/mod.rs:1663:15
[INFO] [stdout]    6:     0x556b6d738eab - std::sys_common::backtrace::_print::h5b3c171e6f864ae4
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x556b6d738eab - std::sys_common::backtrace::print::h93b9e9ed2a98e611
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x556b6d738eab - std::panicking::default_hook::{{closure}}::hd8da92bb68d520c5
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x556b6d7389bc - std::panicking::default_hook::hdbc8b2951c5afbab
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x556b6d739574 - std::panicking::rust_panic_with_hook::h8a4c841655926f4e
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x556b6d739057 - std::panicking::begin_panic_handler::{{closure}}::h471b6bc74904b7b0
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x556b6d73723c - std::sys_common::backtrace::__rust_end_short_backtrace::h309f5c707f29932f
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x556b6d738fb9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x556b6d6e0641 - core::panicking::panic_fmt::hcf5f6d96e1dd7099
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x556b6d6e0733 - core::result::unwrap_failed::he898b02f57993c42
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/result.rs:1355:5
[INFO] [stdout]   16:     0x556b6d6e418e - core::result::Result<T,E>::unwrap::hbf2416677c46c5c1
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/result.rs:1037:23
[INFO] [stdout]   17:     0x556b6d6e4f1b - fcntl::tests::lock_file_simple::hd549c1727787d567
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:369:24
[INFO] [stdout]   18:     0x556b6d6e4e5a - fcntl::tests::lock_file_simple::{{closure}}::hc84a9f2f7b6069fa
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:365:5
[INFO] [stdout]   19:     0x556b6d6e2dde - core::ops::function::FnOnce::call_once::h5d5a34f97f01d9e6
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x556b6d70e343 - core::ops::function::FnOnce::call_once::h99a97b0ff983bd25
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x556b6d70e343 - test::__rust_begin_short_backtrace::h8fe0d26ed1584e50
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:577:5
[INFO] [stdout]   22:     0x556b6d70cdd0 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::he6b90e352f394d8f
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   23:     0x556b6d70cdd0 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h1c05475e029700b8
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:347:9
[INFO] [stdout]   24:     0x556b6d70cdd0 - std::panicking::try::do_call::he6de943476ae628a
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   25:     0x556b6d70cdd0 - std::panicking::try::ha21937b8feb06f89
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   26:     0x556b6d70cdd0 - std::panic::catch_unwind::ha79830b3325c9fa6
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:434:14
[INFO] [stdout]   27:     0x556b6d70cdd0 - test::run_test_in_process::h1ab180b83ee2d5b5
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:600:18
[INFO] [stdout]   28:     0x556b6d70cdd0 - test::run_test::run_test_inner::{{closure}}::h8258ffe088f187a1
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:492:39
[INFO] [stdout]   29:     0x556b6d6e6392 - test::run_test::run_test_inner::{{closure}}::hc697b214abd32bc6
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:519:37
[INFO] [stdout]   30:     0x556b6d6e6392 - std::sys_common::backtrace::__rust_begin_short_backtrace::h64de0d3f894854a9
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   31:     0x556b6d6e9fe8 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h1fd98fc86e533ece
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/thread/mod.rs:476:17
[INFO] [stdout]   32:     0x556b6d6e9fe8 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4e2a7abf702e4cfd
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:347:9
[INFO] [stdout]   33:     0x556b6d6e9fe8 - std::panicking::try::do_call::h4496392321a3c8c0
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   34:     0x556b6d6e9fe8 - std::panicking::try::hf1e14258e04e8e9a
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   35:     0x556b6d6e9fe8 - std::panic::catch_unwind::hb72c3777cd55642f
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:434:14
[INFO] [stdout]   36:     0x556b6d6e9fe8 - std::thread::Builder::spawn_unchecked::{{closure}}::h2d7915a5910e148e
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/thread/mod.rs:475:30
[INFO] [stdout]   37:     0x556b6d6e9fe8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h83fd2f1ef5be797c
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x556b6d73e2c7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::ha8b1d5a0092467fc
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   39:     0x556b6d73e2c7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h4b9f24ec4e8a879e
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   40:     0x556b6d73e2c7 - std::sys::unix::thread::Thread::new::thread_start::h2a0e98fbc4ab4c32
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys/unix/thread.rs:72:17
[INFO] [stdout]   41:     0x7f2175842609 - start_thread
[INFO] [stdout]   42:     0x7f2175614293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- tests::check_file_locking_simple stdout ----
[INFO] [stdout] thread 'tests::check_file_locking_simple' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }', src/lib.rs:352:89
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x556b6d736d40 - std::backtrace_rs::backtrace::libunwind::trace::h706b838f5bbd876b
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x556b6d736d40 - std::backtrace_rs::backtrace::trace_unsynchronized::hc15f29ae7822b7b8
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x556b6d736d40 - std::sys_common::backtrace::_print_fmt::h7c580c971f91926c
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x556b6d736d40 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2a772198c4032452
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x556b6d7596dc - core::fmt::write::h9a6d9c74526a6c1b
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/fmt/mod.rs:1115:17
[INFO] [stdout]    5:     0x556b6d733da5 - std::io::Write::write_fmt::h583dff5009d01a9f
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/io/mod.rs:1663:15
[INFO] [stdout]    6:     0x556b6d738eab - std::sys_common::backtrace::_print::h5b3c171e6f864ae4
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x556b6d738eab - std::sys_common::backtrace::print::h93b9e9ed2a98e611
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x556b6d738eab - std::panicking::default_hook::{{closure}}::hd8da92bb68d520c5
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x556b6d7389bc - std::panicking::default_hook::hdbc8b2951c5afbab
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x556b6d739574 - std::panicking::rust_panic_with_hook::h8a4c841655926f4e
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x556b6d739057 - std::panicking::begin_panic_handler::{{closure}}::h471b6bc74904b7b0
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:519:13
[INFO] [stdout]   12:     0x556b6d73723c - std::sys_common::backtrace::__rust_end_short_backtrace::h309f5c707f29932f
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x556b6d738fb9 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x556b6d6e0641 - core::panicking::panic_fmt::hcf5f6d96e1dd7099
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x556b6d6e0733 - core::result::unwrap_failed::he898b02f57993c42
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/result.rs:1355:5
[INFO] [stdout]   16:     0x556b6d6e418e - core::result::Result<T,E>::unwrap::hbf2416677c46c5c1
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/result.rs:1037:23
[INFO] [stdout]   17:     0x556b6d6e4cc0 - fcntl::tests::check_file_locking_simple::h85d15291eec90193
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:352:24
[INFO] [stdout]   18:     0x556b6d6e4c1a - fcntl::tests::check_file_locking_simple::{{closure}}::h30749aac2dfb00f6
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:349:5
[INFO] [stdout]   19:     0x556b6d6e2d4e - core::ops::function::FnOnce::call_once::h4e20bc9e610b8568
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x556b6d70e343 - core::ops::function::FnOnce::call_once::h99a97b0ff983bd25
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x556b6d70e343 - test::__rust_begin_short_backtrace::h8fe0d26ed1584e50
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:577:5
[INFO] [stdout]   22:     0x556b6d70cdd0 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::he6b90e352f394d8f
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   23:     0x556b6d70cdd0 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h1c05475e029700b8
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:347:9
[INFO] [stdout]   24:     0x556b6d70cdd0 - std::panicking::try::do_call::he6de943476ae628a
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   25:     0x556b6d70cdd0 - std::panicking::try::ha21937b8feb06f89
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   26:     0x556b6d70cdd0 - std::panic::catch_unwind::ha79830b3325c9fa6
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:434:14
[INFO] [stdout]   27:     0x556b6d70cdd0 - test::run_test_in_process::h1ab180b83ee2d5b5
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:600:18
[INFO] [stdout]   28:     0x556b6d70cdd0 - test::run_test::run_test_inner::{{closure}}::h8258ffe088f187a1
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:492:39
[INFO] [stdout]   29:     0x556b6d6e6392 - test::run_test::run_test_inner::{{closure}}::hc697b214abd32bc6
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:519:37
[INFO] [stdout]   30:     0x556b6d6e6392 - std::sys_common::backtrace::__rust_begin_short_backtrace::h64de0d3f894854a9
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   31:     0x556b6d6e9fe8 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h1fd98fc86e533ece
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/thread/mod.rs:476:17
[INFO] [stdout]   32:     0x556b6d6e9fe8 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4e2a7abf702e4cfd
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:347:9
[INFO] [stdout]   33:     0x556b6d6e9fe8 - std::panicking::try::do_call::h4496392321a3c8c0
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:401:40
[INFO] [stdout]   34:     0x556b6d6e9fe8 - std::panicking::try::hf1e14258e04e8e9a
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:365:19
[INFO] [stdout]   35:     0x556b6d6e9fe8 - std::panic::catch_unwind::hb72c3777cd55642f
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:434:14
[INFO] [stdout]   36:     0x556b6d6e9fe8 - std::thread::Builder::spawn_unchecked::{{closure}}::h2d7915a5910e148e
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/thread/mod.rs:475:30
[INFO] [stdout]   37:     0x556b6d6e9fe8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h83fd2f1ef5be797c
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x556b6d73e2c7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::ha8b1d5a0092467fc
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   39:     0x556b6d73e2c7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h4b9f24ec4e8a879e
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/alloc/src/boxed.rs:1572:9
[INFO] [stdout]   40:     0x556b6d73e2c7 - std::sys::unix::thread::Thread::new::thread_start::h2a0e98fbc4ab4c32
[INFO] [stdout]                                at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys/unix/thread.rs:72:17
[INFO] [stdout]   41:     0x7f2175842609 - start_thread
[INFO] [stdout]   42:     0x7f2175614293 - clone
[INFO] [stdout]   43:                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 0.06s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a76b32a59721780d4828df45b4d63b1e76a18579107fd883fee23f3e4ef61bc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a76b32a59721780d4828df45b4d63b1e76a18579107fd883fee23f3e4ef61bc7", kill_on_drop: false }`
[INFO] [stdout] a76b32a59721780d4828df45b4d63b1e76a18579107fd883fee23f3e4ef61bc7