[INFO] cloning repository https://github.com/LearningOS/rust-rustlings-longdafeng
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LearningOS/rust-rustlings-longdafeng" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-longdafeng", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-longdafeng'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d8a1c4257ec2f8079dfb6b1854fd1a6bc6762c68
[INFO] testing LearningOS/rust-rustlings-longdafeng/d8a1c4257ec2f8079dfb6b1854fd1a6bc6762c68 against beta-2024-10-19 for beta-1.83-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-longdafeng" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LearningOS/rust-rustlings-longdafeng on toolchain beta-2024-10-19
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-10-19" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LearningOS/rust-rustlings-longdafeng
[INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-longdafeng
[INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-longdafeng written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LearningOS/rust-rustlings-longdafeng 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" "+beta-2024-10-19" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing LearningOS/rust-rustlings-longdafeng/d8a1c4257ec2f8079dfb6b1854fd1a6bc6762c68 against beta-2024-10-19 for beta-1.83-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-longdafeng" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LearningOS/rust-rustlings-longdafeng on toolchain beta-2024-10-19
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-10-19" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LearningOS/rust-rustlings-longdafeng
[INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-longdafeng
[INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-longdafeng written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LearningOS/rust-rustlings-longdafeng 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" "+beta-2024-10-19" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-10-19" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bb0ff04bc49b8dbc378d4bf23ae0bfd0ee0f597a67ab7d314a35328910cec4c
[INFO] running `Command { std: "docker" "start" "-a" "3bb0ff04bc49b8dbc378d4bf23ae0bfd0ee0f597a67ab7d314a35328910cec4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bb0ff04bc49b8dbc378d4bf23ae0bfd0ee0f597a67ab7d314a35328910cec4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bb0ff04bc49b8dbc378d4bf23ae0bfd0ee0f597a67ab7d314a35328910cec4c", kill_on_drop: false }`
[INFO] [stdout] 3bb0ff04bc49b8dbc378d4bf23ae0bfd0ee0f597a67ab7d314a35328910cec4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-10-19" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1de22e4a61477f173e3bca3a379014d81274dda08ede55690684704f9c5ac5b1
[INFO] running `Command { std: "docker" "start" "-a" "1de22e4a61477f173e3bca3a379014d81274dda08ede55690684704f9c5ac5b1", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustlings v5.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "1de22e4a61477f173e3bca3a379014d81274dda08ede55690684704f9c5ac5b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1de22e4a61477f173e3bca3a379014d81274dda08ede55690684704f9c5ac5b1", kill_on_drop: false }`
[INFO] [stdout] 1de22e4a61477f173e3bca3a379014d81274dda08ede55690684704f9c5ac5b1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-10-19" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bff9e5fb4ed30c2633169df3b15666be30b7300a373022669b54be812ead8ace
[INFO] running `Command { std: "docker" "start" "-a" "bff9e5fb4ed30c2633169df3b15666be30b7300a373022669b54be812ead8ace", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustlings v5.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `Command { std: "docker" "inspect" "bff9e5fb4ed30c2633169df3b15666be30b7300a373022669b54be812ead8ace", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bff9e5fb4ed30c2633169df3b15666be30b7300a373022669b54be812ead8ace", kill_on_drop: false }`
[INFO] [stdout] bff9e5fb4ed30c2633169df3b15666be30b7300a373022669b54be812ead8ace
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-10-19" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 842411a24b41cc0ab27dc6b1e01e67ebea997db9328756a05872a68967a130d9
[INFO] running `Command { std: "docker" "start" "-a" "842411a24b41cc0ab27dc6b1e01e67ebea997db9328756a05872a68967a130d9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-d7d9e571a707086b)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test exercise::test::test_finished_exercise ... ok
[INFO] [stdout] test exercise::test::test_pending_state ... ok
[INFO] [stdout] test exercise::test::test_clean ... FAILED
[INFO] [stdout] test exercise::test::test_exercise_with_output ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- exercise::test::test_clean stdout ----
[INFO] [stdout] thread 'exercise::test::test_clean' panicked at src/exercise.rs:269:36:
[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:     0x6123c4dbef9a - std::backtrace_rs::backtrace::libunwind::trace::h4d70d1fc3f387ba0
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x6123c4dbef9a - std::backtrace_rs::backtrace::trace_unsynchronized::h36ec8598f89aa10d
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x6123c4dbef9a - std::sys::backtrace::_print_fmt::h28554e34eddafd0e
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x6123c4dbef9a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hcfddd6c618da2362
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x6123c4de4603 - core::fmt::rt::Argument::fmt::h61c6663ef797a8d8
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x6123c4de4603 - core::fmt::write::hd107f06dbaee3bcd
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/fmt/mod.rs:1186:21
[INFO] [stdout]    6:     0x6123c4dbc283 - std::io::Write::write_fmt::he91cdb71d5735485
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/io/mod.rs:1839:15
[INFO] [stdout]    7:     0x6123c4dbede2 - std::sys::backtrace::BacktraceLock::print::h0aaa3c788fc54962
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x6123c4dc03fa - std::panicking::default_hook::{{closure}}::ha21be3bf10424d59
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x6123c4dc0204 - std::panicking::default_hook::h7c625ca31e6655f8
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x6123c4c52809 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h27e62728b51ac345
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   11:     0x6123c4c52809 - test::test_main::{{closure}}::hbed48e9da271eb2d
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/test/src/lib.rs:133:21
[INFO] [stdout]   12:     0x6123c4dc0a98 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd23f1b4f57a7d85e
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   13:     0x6123c4dc0a98 - std::panicking::rust_panic_with_hook::h4dfaea2b0d4c7530
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x6123c4dc085a - std::panicking::begin_panic_handler::{{closure}}::hb745add2af2f30cf
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x6123c4dbf479 - std::sys::backtrace::__rust_end_short_backtrace::h06673da104b2a94d
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x6123c4dc04ec - rust_begin_unwind
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x6123c4c08180 - core::panicking::panic_fmt::h7e8d81c8d715d530
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/panicking.rs:74:14
[INFO] [stdout]   18:     0x6123c4c08606 - core::result::unwrap_failed::hd3788f9453624d5e
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/result.rs:1700:5
[INFO] [stdout]   19:     0x6123c4c1247a - core::result::Result<T,E>::unwrap::h8324eeca21a5c575
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/result.rs:1104:23
[INFO] [stdout]   20:     0x6123c4c1247a - rustlings::exercise::test::test_clean::hce7bf94ff7bc1ccd
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:269:9
[INFO] [stdout]   21:     0x6123c4c123b7 - rustlings::exercise::test::test_clean::{{closure}}::h4c0629b7d566fe79
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:268:20
[INFO] [stdout]   22:     0x6123c4c0fa06 - core::ops::function::FnOnce::call_once::h156a6a479cf5e6e9
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x6123c4c570fb - core::ops::function::FnOnce::call_once::h5ce2090d0ba06760
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x6123c4c570fb - test::__rust_begin_short_backtrace::h49e973657dd86077
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/test/src/lib.rs:621:18
[INFO] [stdout]   25:     0x6123c4c569c7 - test::run_test_in_process::{{closure}}::hb4c111032eacbf3c
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/test/src/lib.rs:644:60
[INFO] [stdout]   26:     0x6123c4c569c7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc84870afebfce019
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x6123c4c569c7 - std::panicking::try::do_call::hce598b5d1a04cf08
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:557:40
[INFO] [stdout]   28:     0x6123c4c569c7 - std::panicking::try::h25a7aea9d63b441f
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:520:19
[INFO] [stdout]   29:     0x6123c4c569c7 - std::panic::catch_unwind::h4b12b06a11af50d2
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panic.rs:358:14
[INFO] [stdout]   30:     0x6123c4c569c7 - test::run_test_in_process::hd69883821bd30381
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/test/src/lib.rs:644:27
[INFO] [stdout]   31:     0x6123c4c569c7 - test::run_test::{{closure}}::he160a756db6d8677
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/test/src/lib.rs:565:43
[INFO] [stdout]   32:     0x6123c4c1bbf4 - test::run_test::{{closure}}::h2e90a3191e3e0ce0
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/test/src/lib.rs:595:41
[INFO] [stdout]   33:     0x6123c4c1bbf4 - std::sys::backtrace::__rust_begin_short_backtrace::he01c960b1833637c
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   34:     0x6123c4c1f35e - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h30b75746266698d7
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/thread/mod.rs:538:17
[INFO] [stdout]   35:     0x6123c4c1f35e - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h6a5dff2677e9a6c5
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x6123c4c1f35e - std::panicking::try::do_call::h5e069e9a53dd16f8
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:557:40
[INFO] [stdout]   37:     0x6123c4c1f35e - std::panicking::try::h0f789115e2be34bc
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:520:19
[INFO] [stdout]   38:     0x6123c4c1f35e - std::panic::catch_unwind::h5caa505f99ba7d23
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panic.rs:358:14
[INFO] [stdout]   39:     0x6123c4c1f35e - std::thread::Builder::spawn_unchecked_::{{closure}}::ha405b857d4a0e18b
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/thread/mod.rs:537:30
[INFO] [stdout]   40:     0x6123c4c1f35e - core::ops::function::FnOnce::call_once{{vtable.shim}}::hd3c96c07e3187855
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x6123c4dc49bb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hfe31dd51cc8f40d6
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   42:     0x6123c4dc49bb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h424186ab2917e76f
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   43:     0x6123c4dc49bb - std::sys::pal::unix::thread::Thread::new::thread_start::h5bbddfcb1fc1838d
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   44:     0x77183e59dac3 - <unknown>
[INFO] [stdout]   45:     0x77183e62ea04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ----
[INFO] [stdout] thread 'exercise::test::test_exercise_with_output' panicked at src/exercise.rs:342:38:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: ExerciseOutput { stdout: "", stderr: "\u{1b}[0m\u{1b}[1m\u{1b}[38;5;9merror\u{1b}[0m\u{1b}[0m\u{1b}[1m: couldn't create a temp dir: Read-only file system (os error 30) at path \"/opt/rustwide/workdir/./rmetaJxoMd2\"\u{1b}[0m\n\n\u{1b}[0m\u{1b}[1m\u{1b}[38;5;9merror\u{1b}[0m\u{1b}[0m\u{1b}[1m: aborting due to 1 previous error\u{1b}[0m\n\n" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x6123c4dbef9a - std::backtrace_rs::backtrace::libunwind::trace::h4d70d1fc3f387ba0
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x6123c4dbef9a - std::backtrace_rs::backtrace::trace_unsynchronized::h36ec8598f89aa10d
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x6123c4dbef9a - std::sys::backtrace::_print_fmt::h28554e34eddafd0e
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x6123c4dbef9a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hcfddd6c618da2362
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x6123c4de4603 - core::fmt::rt::Argument::fmt::h61c6663ef797a8d8
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x6123c4de4603 - core::fmt::write::hd107f06dbaee3bcd
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/fmt/mod.rs:1186:21
[INFO] [stdout]    6:     0x6123c4dbc283 - std::io::Write::write_fmt::he91cdb71d5735485
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/io/mod.rs:1839:15
[INFO] [stdout]    7:     0x6123c4dbede2 - std::sys::backtrace::BacktraceLock::print::h0aaa3c788fc54962
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x6123c4dc03fa - std::panicking::default_hook::{{closure}}::ha21be3bf10424d59
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:268:22
[INFO] [stdout]    9:     0x6123c4dc0204 - std::panicking::default_hook::h7c625ca31e6655f8
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:292:9
[INFO] [stdout]   10:     0x6123c4c52809 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h27e62728b51ac345
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   11:     0x6123c4c52809 - test::test_main::{{closure}}::hbed48e9da271eb2d
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/test/src/lib.rs:133:21
[INFO] [stdout]   12:     0x6123c4dc0a98 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd23f1b4f57a7d85e
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/alloc/src/boxed.rs:2468:9
[INFO] [stdout]   13:     0x6123c4dc0a98 - std::panicking::rust_panic_with_hook::h4dfaea2b0d4c7530
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:809:13
[INFO] [stdout]   14:     0x6123c4dc085a - std::panicking::begin_panic_handler::{{closure}}::hb745add2af2f30cf
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:674:13
[INFO] [stdout]   15:     0x6123c4dbf479 - std::sys::backtrace::__rust_end_short_backtrace::h06673da104b2a94d
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/sys/backtrace.rs:170:18
[INFO] [stdout]   16:     0x6123c4dc04ec - rust_begin_unwind
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:665:5
[INFO] [stdout]   17:     0x6123c4c08180 - core::panicking::panic_fmt::h7e8d81c8d715d530
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/panicking.rs:74:14
[INFO] [stdout]   18:     0x6123c4c08606 - core::result::unwrap_failed::hd3788f9453624d5e
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/result.rs:1700:5
[INFO] [stdout]   19:     0x6123c4c132da - core::result::Result<T,E>::unwrap::h213bca1def87c08b
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/result.rs:1104:23
[INFO] [stdout]   20:     0x6123c4c132da - rustlings::exercise::test::test_exercise_with_output::h4eab53be6a00e0e6
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:342:19
[INFO] [stdout]   21:     0x6123c4c130e7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h475f55cded925014
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:335:35
[INFO] [stdout]   22:     0x6123c4c0fab6 - core::ops::function::FnOnce::call_once::heb1aa4f68222ca6e
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x6123c4c570fb - core::ops::function::FnOnce::call_once::h5ce2090d0ba06760
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x6123c4c570fb - test::__rust_begin_short_backtrace::h49e973657dd86077
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/test/src/lib.rs:621:18
[INFO] [stdout]   25:     0x6123c4c569c7 - test::run_test_in_process::{{closure}}::hb4c111032eacbf3c
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/test/src/lib.rs:644:60
[INFO] [stdout]   26:     0x6123c4c569c7 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc84870afebfce019
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x6123c4c569c7 - std::panicking::try::do_call::hce598b5d1a04cf08
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:557:40
[INFO] [stdout]   28:     0x6123c4c569c7 - std::panicking::try::h25a7aea9d63b441f
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:520:19
[INFO] [stdout]   29:     0x6123c4c569c7 - std::panic::catch_unwind::h4b12b06a11af50d2
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panic.rs:358:14
[INFO] [stdout]   30:     0x6123c4c569c7 - test::run_test_in_process::hd69883821bd30381
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/test/src/lib.rs:644:27
[INFO] [stdout]   31:     0x6123c4c569c7 - test::run_test::{{closure}}::he160a756db6d8677
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/test/src/lib.rs:565:43
[INFO] [stdout]   32:     0x6123c4c1bbf4 - test::run_test::{{closure}}::h2e90a3191e3e0ce0
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/test/src/lib.rs:595:41
[INFO] [stdout]   33:     0x6123c4c1bbf4 - std::sys::backtrace::__rust_begin_short_backtrace::he01c960b1833637c
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/sys/backtrace.rs:154:18
[INFO] [stdout]   34:     0x6123c4c1f35e - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h30b75746266698d7
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/thread/mod.rs:538:17
[INFO] [stdout]   35:     0x6123c4c1f35e - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h6a5dff2677e9a6c5
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x6123c4c1f35e - std::panicking::try::do_call::h5e069e9a53dd16f8
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:557:40
[INFO] [stdout]   37:     0x6123c4c1f35e - std::panicking::try::h0f789115e2be34bc
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panicking.rs:520:19
[INFO] [stdout]   38:     0x6123c4c1f35e - std::panic::catch_unwind::h5caa505f99ba7d23
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/panic.rs:358:14
[INFO] [stdout]   39:     0x6123c4c1f35e - std::thread::Builder::spawn_unchecked_::{{closure}}::ha405b857d4a0e18b
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/thread/mod.rs:537:30
[INFO] [stdout]   40:     0x6123c4c1f35e - core::ops::function::FnOnce::call_once{{vtable.shim}}::hd3c96c07e3187855
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x6123c4dc49bb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hfe31dd51cc8f40d6
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   42:     0x6123c4dc49bb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h424186ab2917e76f
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/alloc/src/boxed.rs:2454:9
[INFO] [stdout]   43:     0x6123c4dc49bb - std::sys::pal::unix::thread::Thread::new::thread_start::h5bbddfcb1fc1838d
[INFO] [stdout]                                at /rustc/88c1c3c1102bbf3860891bfa52b7ddd9f26aec2f/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   44:     0x77183e59dac3 - <unknown>
[INFO] [stdout]   45:     0x77183e62ea04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     exercise::test::test_clean
[INFO] [stdout]     exercise::test::test_exercise_with_output
[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] [stderr] error: test failed, to rerun pass `--bin rustlings`
[INFO] running `Command { std: "docker" "inspect" "842411a24b41cc0ab27dc6b1e01e67ebea997db9328756a05872a68967a130d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "842411a24b41cc0ab27dc6b1e01e67ebea997db9328756a05872a68967a130d9", kill_on_drop: false }`
[INFO] [stdout] 842411a24b41cc0ab27dc6b1e01e67ebea997db9328756a05872a68967a130d9