[INFO] cloning repository https://github.com/LearningOS/learn_rust_rustlings-Yuukina
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LearningOS/learn_rust_rustlings-Yuukina" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-Yuukina", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-Yuukina'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 04567a5c39f5bd0cbda9a199fe6719277bbdcd8b
[INFO] testing LearningOS/learn_rust_rustlings-Yuukina against master#61223975d46f794466efa832bc7562b9707ecc46+rustflags=-Copt-level=3 for pr-121282
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-Yuukina" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LearningOS/learn_rust_rustlings-Yuukina on toolchain 61223975d46f794466efa832bc7562b9707ecc46
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-Yuukina
[INFO] finished tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-Yuukina
[INFO] tweaked toml for git repo https://github.com/LearningOS/learn_rust_rustlings-Yuukina written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/LearningOS/learn_rust_rustlings-Yuukina 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" "+61223975d46f794466efa832bc7562b9707ecc46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] testing LearningOS/learn_rust_rustlings-Yuukina against try#d073071d77ce0f93b4fd8cc567a1e2b9e1b22126+rustflags=-Copt-level=3 for pr-121282
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-Yuukina" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LearningOS/learn_rust_rustlings-Yuukina on toolchain d073071d77ce0f93b4fd8cc567a1e2b9e1b22126
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-Yuukina
[INFO] finished tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-Yuukina
[INFO] tweaked toml for git repo https://github.com/LearningOS/learn_rust_rustlings-Yuukina written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LearningOS/learn_rust_rustlings-Yuukina 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" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "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/learn_rust_rustlings-Yuukina against try#d073071d77ce0f93b4fd8cc567a1e2b9e1b22126+rustflags=-Copt-level=3 for pr-121282
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-Yuukina" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LearningOS/learn_rust_rustlings-Yuukina on toolchain d073071d77ce0f93b4fd8cc567a1e2b9e1b22126
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-Yuukina
[INFO] finished tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-Yuukina
[INFO] tweaked toml for git repo https://github.com/LearningOS/learn_rust_rustlings-Yuukina written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/LearningOS/learn_rust_rustlings-Yuukina 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" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c78f4daa3e895ef4546435f09e545e7da9d4808cf64e0e984152503559cc20ec
[INFO] running `Command { std: "docker" "start" "-a" "c78f4daa3e895ef4546435f09e545e7da9d4808cf64e0e984152503559cc20ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c78f4daa3e895ef4546435f09e545e7da9d4808cf64e0e984152503559cc20ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c78f4daa3e895ef4546435f09e545e7da9d4808cf64e0e984152503559cc20ec", kill_on_drop: false }`
[INFO] [stdout] c78f4daa3e895ef4546435f09e545e7da9d4808cf64e0e984152503559cc20ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e4e365f97ce8d0a6ba16a6fc196ff5e7798e1a661183c22fd5e40448191e4e3
[INFO] running `Command { std: "docker" "start" "-a" "3e4e365f97ce8d0a6ba16a6fc196ff5e7798e1a661183c22fd5e40448191e4e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling serde_derive v1.0.129
[INFO] [stderr]    Compiling serde v1.0.129
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling slab v0.4.4
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling serde_json v1.0.81
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling argh_shared v0.1.5
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling net2 v0.2.37
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling terminal_size v0.1.17
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling inotify v0.7.1
[INFO] [stderr]    Compiling mio v0.6.23
[INFO] [stderr]    Compiling filetime v0.2.15
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling mio-extras v2.0.6
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling number_prefix v0.4.0
[INFO] [stderr]    Compiling itoa v1.0.2
[INFO] [stderr]    Compiling notify v4.0.17
[INFO] [stderr]    Compiling home v0.5.3
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling console v0.15.0
[INFO] [stderr]    Compiling indicatif v0.16.2
[INFO] [stderr]    Compiling argh_derive v0.1.5
[INFO] [stderr]    Compiling argh v0.1.5
[INFO] [stderr]    Compiling toml v0.5.9
[INFO] [stderr]    Compiling rustlings v4.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 45.68s
[INFO] running `Command { std: "docker" "inspect" "3e4e365f97ce8d0a6ba16a6fc196ff5e7798e1a661183c22fd5e40448191e4e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e4e365f97ce8d0a6ba16a6fc196ff5e7798e1a661183c22fd5e40448191e4e3", kill_on_drop: false }`
[INFO] [stdout] 3e4e365f97ce8d0a6ba16a6fc196ff5e7798e1a661183c22fd5e40448191e4e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fce304b9b230c87c2f189a4bfa47d3f67e538b7fa1f6a476490f4d611d33cb7b
[INFO] running `Command { std: "docker" "start" "-a" "fce304b9b230c87c2f189a4bfa47d3f67e538b7fa1f6a476490f4d611d33cb7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling predicates-core v1.0.2
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling normalize-line-endings v0.3.0
[INFO] [stderr]    Compiling treeline v0.1.0
[INFO] [stderr]    Compiling predicates-tree v1.0.3
[INFO] [stderr]    Compiling float-cmp v0.8.0
[INFO] [stderr]    Compiling predicates v1.0.8
[INFO] [stderr]    Compiling assert_cmd v0.11.1
[INFO] [stderr]    Compiling rustlings v4.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.72s
[INFO] running `Command { std: "docker" "inspect" "fce304b9b230c87c2f189a4bfa47d3f67e538b7fa1f6a476490f4d611d33cb7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fce304b9b230c87c2f189a4bfa47d3f67e538b7fa1f6a476490f4d611d33cb7b", kill_on_drop: false }`
[INFO] [stdout] fce304b9b230c87c2f189a4bfa47d3f67e538b7fa1f6a476490f4d611d33cb7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 04355fd20fc69b1ad3a474bab5a85e67f216af4e82aa7d69e2f5f6be1cc897bf
[INFO] running `Command { std: "docker" "start" "-a" "04355fd20fc69b1ad3a474bab5a85e67f216af4e82aa7d69e2f5f6be1cc897bf", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rustlings-69a4048ea444dbd9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-ebf1ba93738d7024)
[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:     0x55fbaad01d56 - std::backtrace_rs::backtrace::libunwind::trace::hbf3981e6c8a62f19
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x55fbaad01d56 - std::backtrace_rs::backtrace::trace_unsynchronized::h5d13053d67c404cc
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55fbaad01d56 - std::sys_common::backtrace::_print_fmt::hd24dc5b701eaf8ad
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x55fbaad01d56 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1d0155c7c5a7d116
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55fbaad2995c - core::fmt::rt::Argument::fmt::h462c7a4781d69908
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x55fbaad2995c - core::fmt::write::h3cadc3d0c35667c3
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x55fbaacff56f - std::io::Write::write_fmt::h7b46babfe8aff3fc
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/io/mod.rs:1846:15
[INFO] [stdout]    7:     0x55fbaad01b04 - std::sys_common::backtrace::_print::h21e0ad4a03aa55df
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55fbaad01b04 - std::sys_common::backtrace::print::hb7cfd89cda9bdca7
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55fbaad037fb - std::panicking::default_hook::{{closure}}::hceb0cad555a61bc8
[INFO] [stdout]   10:     0x55fbaad034cd - std::panicking::default_hook::h00eb745c4c12778b
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x55fbaac63a67 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6a7083dbc9bd7b5f
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/alloc/src/boxed.rs:2030:9
[INFO] [stdout]   12:     0x55fbaac63a67 - test::test_main::{{closure}}::h4db87ac2515c25e3
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:137:21
[INFO] [stdout]   13:     0x55fbaad03e30 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hf3b7bc2e2257730b
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/alloc/src/boxed.rs:2030:9
[INFO] [stdout]   14:     0x55fbaad03e30 - std::panicking::rust_panic_with_hook::hccddb3269d601551
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:786:13
[INFO] [stdout]   15:     0x55fbaad03b72 - std::panicking::begin_panic_handler::{{closure}}::h1759cdf989495c64
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:660:13
[INFO] [stdout]   16:     0x55fbaad02236 - std::sys_common::backtrace::__rust_end_short_backtrace::h209794238b4d13a4
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x55fbaad038a4 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:648:5
[INFO] [stdout]   18:     0x55fbaac29115 - core::panicking::panic_fmt::ha17ebef8fbaa0a3e
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x55fbaac29603 - core::result::unwrap_failed::h4921228b49be0fef
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/result.rs:1653:5
[INFO] [stdout]   20:     0x55fbaac29fe8 - core::result::Result<T,E>::unwrap::h8cbd9b9648e8a8dc
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/result.rs:1077:23
[INFO] [stdout]   21:     0x55fbaac29fe8 - rustlings::exercise::test::test_clean::had071989e0f31672
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:269:9
[INFO] [stdout]   22:     0x55fbaac2ee39 - rustlings::exercise::test::test_clean::{{closure}}::h1030dd11800a138d
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:268:20
[INFO] [stdout]   23:     0x55fbaac2ee39 - core::ops::function::FnOnce::call_once::h01f08c32f4c32c63
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x55fbaac6926f - core::ops::function::FnOnce::call_once::hb293dddd1a0c8d0c
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x55fbaac6926f - test::__rust_begin_short_backtrace::hcc33cf50a0d42744
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:620:18
[INFO] [stdout]   26:     0x55fbaac67de0 - test::run_test_in_process::{{closure}}::h1a67b8b225cf5559
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:643:60
[INFO] [stdout]   27:     0x55fbaac67de0 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h6c8366f6b1a529d0
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x55fbaac67de0 - std::panicking::try::do_call::h3ac771f4eea356d5
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:555:40
[INFO] [stdout]   29:     0x55fbaac67de0 - std::panicking::try::h2b1799e4f57e5bcf
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:519:19
[INFO] [stdout]   30:     0x55fbaac67de0 - std::panic::catch_unwind::h0a3cc3fea72ac271
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panic.rs:142:14
[INFO] [stdout]   31:     0x55fbaac67de0 - test::run_test_in_process::h47356101e0c4cc43
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:643:27
[INFO] [stdout]   32:     0x55fbaac67de0 - test::run_test::{{closure}}::hfc86d13e98ee1936
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:566:43
[INFO] [stdout]   33:     0x55fbaac30123 - test::run_test::{{closure}}::h077c30ad86447616
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:594:41
[INFO] [stdout]   34:     0x55fbaac30123 - std::sys_common::backtrace::__rust_begin_short_backtrace::h7a0647371687c548
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   35:     0x55fbaac34dbf - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h0ade0df8a561803e
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/thread/mod.rs:528:17
[INFO] [stdout]   36:     0x55fbaac34dbf - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h94e6781319385c1d
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x55fbaac34dbf - std::panicking::try::do_call::h2d8e7d2812ed142e
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:555:40
[INFO] [stdout]   38:     0x55fbaac34dbf - std::panicking::try::hfec8a6adb9bfcaea
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:519:19
[INFO] [stdout]   39:     0x55fbaac34dbf - std::panic::catch_unwind::hf488fb91a41eb5b5
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panic.rs:142:14
[INFO] [stdout]   40:     0x55fbaac34dbf - std::thread::Builder::spawn_unchecked_::{{closure}}::h306975a3cadd5153
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/thread/mod.rs:527:30
[INFO] [stdout]   41:     0x55fbaac34dbf - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4f4ed26f27d558ae
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x55fbaad08285 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h17d6fdbdde1f730c
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/alloc/src/boxed.rs:2016:9
[INFO] [stdout]   43:     0x55fbaad08285 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h298d88b0d0cf4d06
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/alloc/src/boxed.rs:2016:9
[INFO] [stdout]   44:     0x55fbaad08285 - std::sys::pal::unix::thread::Thread::new::thread_start::h1ecd97591626fa72
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys/pal/unix/thread.rs:108:17
[INFO] [stdout]   45:     0x7fb7d2ef5ac3 - <unknown>
[INFO] [stdout]   46:     0x7fb7d2f86bf4 - __clone
[INFO] [stdout]   47:                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/./rmeta0NcsDK\"\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:     0x55fbaad01d56 - std::backtrace_rs::backtrace::libunwind::trace::hbf3981e6c8a62f19
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stdout]    1:     0x55fbaad01d56 - std::backtrace_rs::backtrace::trace_unsynchronized::h5d13053d67c404cc
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55fbaad01d56 - std::sys_common::backtrace::_print_fmt::hd24dc5b701eaf8ad
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stdout]    3:     0x55fbaad01d56 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h1d0155c7c5a7d116
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stdout]    4:     0x55fbaad2995c - core::fmt::rt::Argument::fmt::h462c7a4781d69908
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/fmt/rt.rs:142:9
[INFO] [stdout]    5:     0x55fbaad2995c - core::fmt::write::h3cadc3d0c35667c3
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/fmt/mod.rs:1120:17
[INFO] [stdout]    6:     0x55fbaacff56f - std::io::Write::write_fmt::h7b46babfe8aff3fc
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/io/mod.rs:1846:15
[INFO] [stdout]    7:     0x55fbaad01b04 - std::sys_common::backtrace::_print::h21e0ad4a03aa55df
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stdout]    8:     0x55fbaad01b04 - std::sys_common::backtrace::print::hb7cfd89cda9bdca7
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stdout]    9:     0x55fbaad037fb - std::panicking::default_hook::{{closure}}::hceb0cad555a61bc8
[INFO] [stdout]   10:     0x55fbaad034cd - std::panicking::default_hook::h00eb745c4c12778b
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:289:9
[INFO] [stdout]   11:     0x55fbaac63a67 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6a7083dbc9bd7b5f
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/alloc/src/boxed.rs:2030:9
[INFO] [stdout]   12:     0x55fbaac63a67 - test::test_main::{{closure}}::h4db87ac2515c25e3
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:137:21
[INFO] [stdout]   13:     0x55fbaad03e30 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hf3b7bc2e2257730b
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/alloc/src/boxed.rs:2030:9
[INFO] [stdout]   14:     0x55fbaad03e30 - std::panicking::rust_panic_with_hook::hccddb3269d601551
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:786:13
[INFO] [stdout]   15:     0x55fbaad03b72 - std::panicking::begin_panic_handler::{{closure}}::h1759cdf989495c64
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:660:13
[INFO] [stdout]   16:     0x55fbaad02236 - std::sys_common::backtrace::__rust_end_short_backtrace::h209794238b4d13a4
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stdout]   17:     0x55fbaad038a4 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:648:5
[INFO] [stdout]   18:     0x55fbaac29115 - core::panicking::panic_fmt::ha17ebef8fbaa0a3e
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/panicking.rs:72:14
[INFO] [stdout]   19:     0x55fbaac29603 - core::result::unwrap_failed::h4921228b49be0fef
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/result.rs:1653:5
[INFO] [stdout]   20:     0x55fbaac2b05b - core::result::Result<T,E>::unwrap::h6f28257d0ec4884d
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/result.rs:1077:23
[INFO] [stdout]   21:     0x55fbaac2b05b - rustlings::exercise::test::test_exercise_with_output::h88213d834e829a95
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:342:19
[INFO] [stdout]   22:     0x55fbaac2ee79 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h21b13732eabadc32
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:335:35
[INFO] [stdout]   23:     0x55fbaac2ee79 - core::ops::function::FnOnce::call_once::h61dfde0ec20ab225
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x55fbaac6926f - core::ops::function::FnOnce::call_once::hb293dddd1a0c8d0c
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x55fbaac6926f - test::__rust_begin_short_backtrace::hcc33cf50a0d42744
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:620:18
[INFO] [stdout]   26:     0x55fbaac67de0 - test::run_test_in_process::{{closure}}::h1a67b8b225cf5559
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:643:60
[INFO] [stdout]   27:     0x55fbaac67de0 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h6c8366f6b1a529d0
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x55fbaac67de0 - std::panicking::try::do_call::h3ac771f4eea356d5
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:555:40
[INFO] [stdout]   29:     0x55fbaac67de0 - std::panicking::try::h2b1799e4f57e5bcf
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:519:19
[INFO] [stdout]   30:     0x55fbaac67de0 - std::panic::catch_unwind::h0a3cc3fea72ac271
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panic.rs:142:14
[INFO] [stdout]   31:     0x55fbaac67de0 - test::run_test_in_process::h47356101e0c4cc43
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:643:27
[INFO] [stdout]   32:     0x55fbaac67de0 - test::run_test::{{closure}}::hfc86d13e98ee1936
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:566:43
[INFO] [stdout]   33:     0x55fbaac30123 - test::run_test::{{closure}}::h077c30ad86447616
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:594:41
[INFO] [stdout]   34:     0x55fbaac30123 - std::sys_common::backtrace::__rust_begin_short_backtrace::h7a0647371687c548
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:155:18
[INFO] [stdout]   35:     0x55fbaac34dbf - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h0ade0df8a561803e
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/thread/mod.rs:528:17
[INFO] [stdout]   36:     0x55fbaac34dbf - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h94e6781319385c1d
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x55fbaac34dbf - std::panicking::try::do_call::h2d8e7d2812ed142e
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:555:40
[INFO] [stdout]   38:     0x55fbaac34dbf - std::panicking::try::hfec8a6adb9bfcaea
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:519:19
[INFO] [stdout]   39:     0x55fbaac34dbf - std::panic::catch_unwind::hf488fb91a41eb5b5
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panic.rs:142:14
[INFO] [stdout]   40:     0x55fbaac34dbf - std::thread::Builder::spawn_unchecked_::{{closure}}::h306975a3cadd5153
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/thread/mod.rs:527:30
[INFO] [stdout]   41:     0x55fbaac34dbf - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4f4ed26f27d558ae
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x55fbaad08285 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h17d6fdbdde1f730c
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/alloc/src/boxed.rs:2016:9
[INFO] [stdout]   43:     0x55fbaad08285 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h298d88b0d0cf4d06
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/alloc/src/boxed.rs:2016:9
[INFO] [stdout]   44:     0x55fbaad08285 - std::sys::pal::unix::thread::Thread::new::thread_start::h1ecd97591626fa72
[INFO] [stdout]                                at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys/pal/unix/thread.rs:108:17
[INFO] [stdout]   45:     0x7fb7d2ef5ac3 - <unknown>
[INFO] [stdout]   46:     0x7fb7d2f86bf4 - __clone
[INFO] [stdout]   47:                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 0.03s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--bin rustlings`
[INFO] running `Command { std: "docker" "inspect" "04355fd20fc69b1ad3a474bab5a85e67f216af4e82aa7d69e2f5f6be1cc897bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04355fd20fc69b1ad3a474bab5a85e67f216af4e82aa7d69e2f5f6be1cc897bf", kill_on_drop: false }`
[INFO] [stdout] 04355fd20fc69b1ad3a474bab5a85e67f216af4e82aa7d69e2f5f6be1cc897bf