[INFO] fetching crate sharded-log 0.0.1...
[INFO] testing sharded-log-0.0.1 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate sharded-log 0.0.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate sharded-log 0.0.1
[INFO] finished tweaking crates.io crate sharded-log 0.0.1
[INFO] tweaked toml for crates.io crate sharded-log 0.0.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sharded-log 0.0.1 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sharded-log 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fault-injection v1.0.1
[INFO] [stderr]   Downloaded libc v0.2.125
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76ee11fcd3ea45fda4dd4bdaeb296aaa2dec4bc2ae7e65d24da58f2b93207bd7
[INFO] running `Command { std: "docker" "start" "-a" "76ee11fcd3ea45fda4dd4bdaeb296aaa2dec4bc2ae7e65d24da58f2b93207bd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76ee11fcd3ea45fda4dd4bdaeb296aaa2dec4bc2ae7e65d24da58f2b93207bd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76ee11fcd3ea45fda4dd4bdaeb296aaa2dec4bc2ae7e65d24da58f2b93207bd7", kill_on_drop: false }`
[INFO] [stdout] 76ee11fcd3ea45fda4dd4bdaeb296aaa2dec4bc2ae7e65d24da58f2b93207bd7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d37db5c529f031a34503949a4896b1af629e5d0aae3d352056a110fce4a4f45b
[INFO] running `Command { std: "docker" "start" "-a" "d37db5c529f031a34503949a4896b1af629e5d0aae3d352056a110fce4a4f45b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling fault-injection v1.0.1
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling fs2 v0.4.3
[INFO] [stderr]    Compiling sharded-log v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "d37db5c529f031a34503949a4896b1af629e5d0aae3d352056a110fce4a4f45b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d37db5c529f031a34503949a4896b1af629e5d0aae3d352056a110fce4a4f45b", kill_on_drop: false }`
[INFO] [stdout] d37db5c529f031a34503949a4896b1af629e5d0aae3d352056a110fce4a4f45b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56eed2642687c0f149d3532374c9bb7292c706a6ab7360f07df3722dcbcd1545
[INFO] running `Command { std: "docker" "start" "-a" "56eed2642687c0f149d3532374c9bb7292c706a6ab7360f07df3722dcbcd1545", kill_on_drop: false }`
[INFO] [stderr]    Compiling sharded-log v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "56eed2642687c0f149d3532374c9bb7292c706a6ab7360f07df3722dcbcd1545", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56eed2642687c0f149d3532374c9bb7292c706a6ab7360f07df3722dcbcd1545", kill_on_drop: false }`
[INFO] [stdout] 56eed2642687c0f149d3532374c9bb7292c706a6ab7360f07df3722dcbcd1545
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ee384ff17267e5f6e43df568128bea19343f8909b1df5c3dc6bdeca0e362bd2b
[INFO] running `Command { std: "docker" "start" "-a" "ee384ff17267e5f6e43df568128bea19343f8909b1df5c3dc6bdeca0e362bd2b", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sharded_log-cd44ae4c78d12a4b)
[INFO] [stdout] running 1 test
[INFO] [stdout] test concurrency ... FAILED
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- concurrency stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'concurrency' (25) panicked at src/lib.rs:522:20:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Custom { kind: ReadOnlyFilesystem, error: "sharded_log:src/lib.rs:110 -> sharded_log:src/lib.rs:94 -> Read-only file system (os error 30)" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x57d1c73eac12 - std::backtrace_rs::backtrace::libunwind::trace::h76861be37b31432e
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x57d1c73eac12 - std::backtrace_rs::backtrace::trace_unsynchronized::h58d4003082192c17
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x57d1c73eac12 - std::sys::backtrace::_print_fmt::hfe5857a399620d2a
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x57d1c73eac12 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h52160e9da139e442
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x57d1c73fb7af - core::fmt::rt::Argument::fmt::h66fe6fef9ecca14a
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x57d1c73fb7af - core::fmt::write::hf09a056a304e021a
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/fmt/mod.rs:1468:25
[INFO] [stdout]    6:     0x57d1c73b7011 - std::io::default_write_fmt::hf1a3645468226e09
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x57d1c73b7011 - std::io::Write::write_fmt::ha5ada6d6a18bde33
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x57d1c73c37e2 - std::sys::backtrace::BacktraceLock::print::h15104dbcf0fd1f14
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x57d1c73c867f - std::panicking::default_hook::{{closure}}::h0fa6cd8dbe0dd76b
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x57d1c73c8511 - std::panicking::default_hook::h8d20506cf72e4831
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x57d1c738524e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3d020961abd83a77
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   12:     0x57d1c738524e - test::test_main_with_exit_callback::{{closure}}::h720dd2fdb2ddcdca
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x57d1c73c8d3f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h75334a5fed245bca
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/alloc/src/boxed.rs:1987:9
[INFO] [stdout]   14:     0x57d1c73c8d3f - std::panicking::panic_with_hook::h746880a052e02c85
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x57d1c73c8b9a - std::panicking::panic_handler::{{closure}}::h14b95830f89d14b3
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x57d1c73c3919 - std::sys::backtrace::__rust_end_short_backtrace::h7ddaac0e9609a83d
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x57d1c73aaf2d - __rustc[76f7e7187978e2f8]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x57d1c7403150 - core::panicking::panic_fmt::heb245a301f4395db
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/panicking.rs:78:14
[INFO] [stdout]   19:     0x57d1c74028c6 - core::result::unwrap_failed::h91bd1e1731f928fc
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/result.rs:1855:5
[INFO] [stdout]   20:     0x57d1c7357ee1 - core::result::Result<T,E>::unwrap::h2ad837bd98eddfc0
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/result.rs:1226:23
[INFO] [stdout]   21:     0x57d1c7357ee1 - sharded_log::concurrency::h251bafa8e703ddb6
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:522:20
[INFO] [stdout]   22:     0x57d1c7358ac7 - sharded_log::concurrency::{{closure}}::h04fd01bb4bb1873f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:509:17
[INFO] [stdout]   23:     0x57d1c73494a6 - core::ops::function::FnOnce::call_once::h4524323902ce7222
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x57d1c738507b - core::ops::function::FnOnce::call_once::h933a5d67211adff2
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x57d1c738507b - test::__rust_begin_short_backtrace::h2157af19b0990ffb
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x57d1c739ac55 - test::run_test_in_process::{{closure}}::hc3b17e0f313c900a
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x57d1c739ac55 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::ha23e4b490259273c
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x57d1c739ac55 - std::panicking::catch_unwind::do_call::h8dc9d5da83792f7a
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x57d1c739ac55 - std::panicking::catch_unwind::h0d8461330de4a18b
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x57d1c739ac55 - std::panic::catch_unwind::h0321b51397bf9811
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x57d1c739ac55 - test::run_test_in_process::hcaaa440fdbe4a513
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x57d1c739ac55 - test::run_test::{{closure}}::h6345da602b85d6c3
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x57d1c7371464 - test::run_test::{{closure}}::h90a3b75194d37b5d
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x57d1c7371464 - std::sys::backtrace::__rust_begin_short_backtrace::hae41a17001f53ede
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x57d1c7374d2a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h6ea895368381e0b1
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x57d1c7374d2a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9c39013633bb9237
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x57d1c7374d2a - std::panicking::catch_unwind::do_call::hac7dba9ee4d99108
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x57d1c7374d2a - std::panicking::catch_unwind::h73015d00e4866ebc
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x57d1c7374d2a - std::panic::catch_unwind::h6f7b38e188aa4f62
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x57d1c7374d2a - std::thread::Builder::spawn_unchecked_::{{closure}}::h969a6a2dc1856df7
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x57d1c7374d2a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h269ad1ff23e72122
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x57d1c73bea5f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hdd09a470c130e806
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/alloc/src/boxed.rs:1973:9
[INFO] [stdout]   43:     0x57d1c73bea5f - std::sys::thread::unix::Thread::new::thread_start::h14ea1ba6e320367c
[INFO] [stdout]                                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/thread/unix.rs:126:17
[INFO] [stdout]   44:     0x782d7f305aa4 - <unknown>
[INFO] [stdout]   45:     0x782d7f392a34 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     concurrency
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ee384ff17267e5f6e43df568128bea19343f8909b1df5c3dc6bdeca0e362bd2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee384ff17267e5f6e43df568128bea19343f8909b1df5c3dc6bdeca0e362bd2b", kill_on_drop: false }`
[INFO] [stdout] ee384ff17267e5f6e43df568128bea19343f8909b1df5c3dc6bdeca0e362bd2b