[INFO] cloning repository https://github.com/LearningOS/rust-rustlings-JasonkayZK [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-JasonkayZK" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-JasonkayZK", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-JasonkayZK'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 622286844008487efcb5c8b9a8188a516fdc1752 [INFO] testing LearningOS/rust-rustlings-JasonkayZK/622286844008487efcb5c8b9a8188a516fdc1752 against master#8dd5cd0bc1d683c30805e1dc831cac546b621a75 for pr-131095 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-JasonkayZK" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LearningOS/rust-rustlings-JasonkayZK on toolchain 8dd5cd0bc1d683c30805e1dc831cac546b621a75 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8dd5cd0bc1d683c30805e1dc831cac546b621a75" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/LearningOS/rust-rustlings-JasonkayZK [INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-JasonkayZK [INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-JasonkayZK written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/LearningOS/rust-rustlings-JasonkayZK 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" "+8dd5cd0bc1d683c30805e1dc831cac546b621a75" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+8dd5cd0bc1d683c30805e1dc831cac546b621a75" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 92909fcffcf69bbd2ff064c1c9ca8b1df81ff53374bf0eda9b7d730fe2326c12 [INFO] running `Command { std: "docker" "start" "-a" "92909fcffcf69bbd2ff064c1c9ca8b1df81ff53374bf0eda9b7d730fe2326c12", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "92909fcffcf69bbd2ff064c1c9ca8b1df81ff53374bf0eda9b7d730fe2326c12", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "92909fcffcf69bbd2ff064c1c9ca8b1df81ff53374bf0eda9b7d730fe2326c12", kill_on_drop: false }` [INFO] [stdout] 92909fcffcf69bbd2ff064c1c9ca8b1df81ff53374bf0eda9b7d730fe2326c12 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+8dd5cd0bc1d683c30805e1dc831cac546b621a75" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3c8dec352624b87179e17c5997fac146bb4942fa4087947fab6f512644e0828e [INFO] running `Command { std: "docker" "start" "-a" "3c8dec352624b87179e17c5997fac146bb4942fa4087947fab6f512644e0828e", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.137 [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 cfg-if v1.0.0 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling parking_lot_core v0.9.4 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling smallvec v1.10.0 [INFO] [stderr] Compiling lock_api v0.4.9 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling tokio v1.21.2 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling parking_lot v0.12.1 [INFO] [stderr] Compiling signal-hook-registry v1.4.0 [INFO] [stderr] Compiling socket2 v0.4.7 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling num_cpus v1.13.1 [INFO] [stderr] Compiling mio v0.8.5 [INFO] [stderr] Compiling regex v1.5.5 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling itoa v1.0.2 [INFO] [stderr] Compiling pin-project-lite v0.2.9 [INFO] [stderr] Compiling bytes v1.2.1 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling home v0.5.3 [INFO] [stderr] Compiling console v0.15.0 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling tokio-macros v1.8.0 [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 v5.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.15s [INFO] running `Command { std: "docker" "inspect" "3c8dec352624b87179e17c5997fac146bb4942fa4087947fab6f512644e0828e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3c8dec352624b87179e17c5997fac146bb4942fa4087947fab6f512644e0828e", kill_on_drop: false }` [INFO] [stdout] 3c8dec352624b87179e17c5997fac146bb4942fa4087947fab6f512644e0828e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+8dd5cd0bc1d683c30805e1dc831cac546b621a75" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 54ae52aec612affada6f4a630a31b8d92a9d4374afd8862df4c347553da2832d [INFO] running `Command { std: "docker" "start" "-a" "54ae52aec612affada6f4a630a31b8d92a9d4374afd8862df4c347553da2832d", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [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 v5.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.59s [INFO] running `Command { std: "docker" "inspect" "54ae52aec612affada6f4a630a31b8d92a9d4374afd8862df4c347553da2832d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "54ae52aec612affada6f4a630a31b8d92a9d4374afd8862df4c347553da2832d", kill_on_drop: false }` [INFO] [stdout] 54ae52aec612affada6f4a630a31b8d92a9d4374afd8862df4c347553da2832d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+8dd5cd0bc1d683c30805e1dc831cac546b621a75" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 7a39912e27dec5330e32eabfe50e45836eb1d0871921f8a8e8e0edad0f933cb1 [INFO] running `Command { std: "docker" "start" "-a" "7a39912e27dec5330e32eabfe50e45836eb1d0871921f8a8e8e0edad0f933cb1", 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-0da0eebcf6579f30) [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: 0x5a5d51e2e58a - std::backtrace_rs::backtrace::libunwind::trace::h4606d48448b1ba77 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x5a5d51e2e58a - std::backtrace_rs::backtrace::trace_unsynchronized::hd9bd2bb6e9a5ca01 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5a5d51e2e58a - std::sys::backtrace::_print_fmt::hdd04e848d43c106c [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5a5d51e2e58a - ::fmt::h7ca37f77f5669bbb [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5a5d51e55213 - core::fmt::rt::Argument::fmt::h202d1bbf85d5376b [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x5a5d51e55213 - core::fmt::write::hf6c48d06494bcc1f [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/fmt/mod.rs:1186:21 [INFO] [stdout] 6: 0x5a5d51e2b093 - std::io::Write::write_fmt::hf71930c5482cea2d [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/io/mod.rs:1839:15 [INFO] [stdout] 7: 0x5a5d51e2e3d2 - std::sys::backtrace::BacktraceLock::print::h4fd7b6937dad2848 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x5a5d51e2fa35 - std::panicking::default_hook::{{closure}}::h81ede4c82147d06d [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:268:22 [INFO] [stdout] 9: 0x5a5d51e2f828 - std::panicking::default_hook::ha7df733aab36abc9 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:292:9 [INFO] [stdout] 10: 0x5a5d51cc5059 - as core::ops::function::Fn>::call::h8723004080371ace [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/alloc/src/boxed.rs:2468:9 [INFO] [stdout] 11: 0x5a5d51cc5059 - test::test_main::{{closure}}::hb2d7a9506f895eb0 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/test/src/lib.rs:133:21 [INFO] [stdout] 12: 0x5a5d51e30138 - as core::ops::function::Fn>::call::hc4de322c6ef0c448 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/alloc/src/boxed.rs:2468:9 [INFO] [stdout] 13: 0x5a5d51e30138 - std::panicking::rust_panic_with_hook::he529f18a2afb0885 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:809:13 [INFO] [stdout] 14: 0x5a5d51e2fefa - std::panicking::begin_panic_handler::{{closure}}::h739bd0d906f8ef30 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:674:13 [INFO] [stdout] 15: 0x5a5d51e2ea69 - std::sys::backtrace::__rust_end_short_backtrace::hfa4f64fbe99f5f4f [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x5a5d51e2fb8c - rust_begin_unwind [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:665:5 [INFO] [stdout] 17: 0x5a5d51e53bd0 - core::panicking::panic_fmt::h72a1f70d82e35259 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/panicking.rs:74:14 [INFO] [stdout] 18: 0x5a5d51e54056 - core::result::unwrap_failed::ha90c3701e3888ae8 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/result.rs:1695:5 [INFO] [stdout] 19: 0x5a5d51c8211a - core::result::Result::unwrap::hcc174c11dc22c55a [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/result.rs:1103:23 [INFO] [stdout] 20: 0x5a5d51c8211a - rustlings::exercise::test::test_clean::h3df825e995d7411a [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:9 [INFO] [stdout] 21: 0x5a5d51c82057 - rustlings::exercise::test::test_clean::{{closure}}::h141bc174aca241dd [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:268:20 [INFO] [stdout] 22: 0x5a5d51c7f7e6 - core::ops::function::FnOnce::call_once::hc410120bed46fa5e [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x5a5d51cc996b - core::ops::function::FnOnce::call_once::hb48403f420dede38 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5a5d51cc996b - test::__rust_begin_short_backtrace::hca659a7390f465ee [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/test/src/lib.rs:621:18 [INFO] [stdout] 25: 0x5a5d51cc9208 - test::run_test_in_process::{{closure}}::h01956df2bd7ee648 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/test/src/lib.rs:644:60 [INFO] [stdout] 26: 0x5a5d51cc9208 - as core::ops::function::FnOnce<()>>::call_once::h3b157690a36c8c0a [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x5a5d51cc9208 - std::panicking::try::do_call::he83a1a39d0e2baca [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:557:40 [INFO] [stdout] 28: 0x5a5d51cc9208 - std::panicking::try::hd0b080c349aae41d [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:520:19 [INFO] [stdout] 29: 0x5a5d51cc9208 - std::panic::catch_unwind::h2b925a7b0559e252 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panic.rs:358:14 [INFO] [stdout] 30: 0x5a5d51cc9208 - test::run_test_in_process::hca3ea2f2aba5ff00 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/test/src/lib.rs:644:27 [INFO] [stdout] 31: 0x5a5d51cc9208 - test::run_test::{{closure}}::h1b13df62079d3fc4 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/test/src/lib.rs:565:43 [INFO] [stdout] 32: 0x5a5d51c8d434 - test::run_test::{{closure}}::h6a9d8b37006e1424 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/test/src/lib.rs:595:41 [INFO] [stdout] 33: 0x5a5d51c8d434 - std::sys::backtrace::__rust_begin_short_backtrace::hf3ca9f8b9c9112b1 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x5a5d51c90ae2 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hcb9ba1ad6c81ed54 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/thread/mod.rs:521:17 [INFO] [stdout] 35: 0x5a5d51c90ae2 - as core::ops::function::FnOnce<()>>::call_once::hd8ef8a8144f33917 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x5a5d51c90ae2 - std::panicking::try::do_call::hb603bd1a792b0a0c [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:557:40 [INFO] [stdout] 37: 0x5a5d51c90ae2 - std::panicking::try::hc55d1ad1dd118be8 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:520:19 [INFO] [stdout] 38: 0x5a5d51c90ae2 - std::panic::catch_unwind::hba2d4da5f2ddd6c8 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panic.rs:358:14 [INFO] [stdout] 39: 0x5a5d51c90ae2 - std::thread::Builder::spawn_unchecked_::{{closure}}::hcb67e15a3f8d8d57 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/thread/mod.rs:520:30 [INFO] [stdout] 40: 0x5a5d51c90ae2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h272bd022d3f6f9a0 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x5a5d51e3407b - as core::ops::function::FnOnce>::call_once::h879ed15e79645e60 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/alloc/src/boxed.rs:2454:9 [INFO] [stdout] 42: 0x5a5d51e3407b - as core::ops::function::FnOnce>::call_once::h523a9a8eaa227d84 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/alloc/src/boxed.rs:2454:9 [INFO] [stdout] 43: 0x5a5d51e3407b - std::sys::pal::unix::thread::Thread::new::thread_start::h6827be62cf511abb [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x799a09f02ac3 - [INFO] [stdout] 45: 0x799a09f93a04 - clone [INFO] [stdout] 46: 0x0 - [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/./rmetaOgUCJH\"\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: 0x5a5d51e2e58a - std::backtrace_rs::backtrace::libunwind::trace::h4606d48448b1ba77 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x5a5d51e2e58a - std::backtrace_rs::backtrace::trace_unsynchronized::hd9bd2bb6e9a5ca01 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5a5d51e2e58a - std::sys::backtrace::_print_fmt::hdd04e848d43c106c [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5a5d51e2e58a - ::fmt::h7ca37f77f5669bbb [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5a5d51e55213 - core::fmt::rt::Argument::fmt::h202d1bbf85d5376b [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x5a5d51e55213 - core::fmt::write::hf6c48d06494bcc1f [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/fmt/mod.rs:1186:21 [INFO] [stdout] 6: 0x5a5d51e2b093 - std::io::Write::write_fmt::hf71930c5482cea2d [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/io/mod.rs:1839:15 [INFO] [stdout] 7: 0x5a5d51e2e3d2 - std::sys::backtrace::BacktraceLock::print::h4fd7b6937dad2848 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x5a5d51e2fa35 - std::panicking::default_hook::{{closure}}::h81ede4c82147d06d [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:268:22 [INFO] [stdout] 9: 0x5a5d51e2f828 - std::panicking::default_hook::ha7df733aab36abc9 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:292:9 [INFO] [stdout] 10: 0x5a5d51cc5059 - as core::ops::function::Fn>::call::h8723004080371ace [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/alloc/src/boxed.rs:2468:9 [INFO] [stdout] 11: 0x5a5d51cc5059 - test::test_main::{{closure}}::hb2d7a9506f895eb0 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/test/src/lib.rs:133:21 [INFO] [stdout] 12: 0x5a5d51e30138 - as core::ops::function::Fn>::call::hc4de322c6ef0c448 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/alloc/src/boxed.rs:2468:9 [INFO] [stdout] 13: 0x5a5d51e30138 - std::panicking::rust_panic_with_hook::he529f18a2afb0885 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:809:13 [INFO] [stdout] 14: 0x5a5d51e2fefa - std::panicking::begin_panic_handler::{{closure}}::h739bd0d906f8ef30 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:674:13 [INFO] [stdout] 15: 0x5a5d51e2ea69 - std::sys::backtrace::__rust_end_short_backtrace::hfa4f64fbe99f5f4f [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x5a5d51e2fb8c - rust_begin_unwind [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:665:5 [INFO] [stdout] 17: 0x5a5d51e53bd0 - core::panicking::panic_fmt::h72a1f70d82e35259 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/panicking.rs:74:14 [INFO] [stdout] 18: 0x5a5d51e54056 - core::result::unwrap_failed::ha90c3701e3888ae8 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/result.rs:1695:5 [INFO] [stdout] 19: 0x5a5d51c82f7a - core::result::Result::unwrap::hcf2e1d4e4162eea4 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/result.rs:1103:23 [INFO] [stdout] 20: 0x5a5d51c82f7a - rustlings::exercise::test::test_exercise_with_output::h886254d886b3f861 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:342:19 [INFO] [stdout] 21: 0x5a5d51c82d87 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h98152c7156c87ef2 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:335:35 [INFO] [stdout] 22: 0x5a5d51c7f756 - core::ops::function::FnOnce::call_once::h37b1db5ecb0d0ec2 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x5a5d51cc996b - core::ops::function::FnOnce::call_once::hb48403f420dede38 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5a5d51cc996b - test::__rust_begin_short_backtrace::hca659a7390f465ee [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/test/src/lib.rs:621:18 [INFO] [stdout] 25: 0x5a5d51cc9208 - test::run_test_in_process::{{closure}}::h01956df2bd7ee648 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/test/src/lib.rs:644:60 [INFO] [stdout] 26: 0x5a5d51cc9208 - as core::ops::function::FnOnce<()>>::call_once::h3b157690a36c8c0a [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x5a5d51cc9208 - std::panicking::try::do_call::he83a1a39d0e2baca [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:557:40 [INFO] [stdout] 28: 0x5a5d51cc9208 - std::panicking::try::hd0b080c349aae41d [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:520:19 [INFO] [stdout] 29: 0x5a5d51cc9208 - std::panic::catch_unwind::h2b925a7b0559e252 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panic.rs:358:14 [INFO] [stdout] 30: 0x5a5d51cc9208 - test::run_test_in_process::hca3ea2f2aba5ff00 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/test/src/lib.rs:644:27 [INFO] [stdout] 31: 0x5a5d51cc9208 - test::run_test::{{closure}}::h1b13df62079d3fc4 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/test/src/lib.rs:565:43 [INFO] [stdout] 32: 0x5a5d51c8d434 - test::run_test::{{closure}}::h6a9d8b37006e1424 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/test/src/lib.rs:595:41 [INFO] [stdout] 33: 0x5a5d51c8d434 - std::sys::backtrace::__rust_begin_short_backtrace::hf3ca9f8b9c9112b1 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x5a5d51c90ae2 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hcb9ba1ad6c81ed54 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/thread/mod.rs:521:17 [INFO] [stdout] 35: 0x5a5d51c90ae2 - as core::ops::function::FnOnce<()>>::call_once::hd8ef8a8144f33917 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x5a5d51c90ae2 - std::panicking::try::do_call::hb603bd1a792b0a0c [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:557:40 [INFO] [stdout] 37: 0x5a5d51c90ae2 - std::panicking::try::hc55d1ad1dd118be8 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panicking.rs:520:19 [INFO] [stdout] 38: 0x5a5d51c90ae2 - std::panic::catch_unwind::hba2d4da5f2ddd6c8 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/panic.rs:358:14 [INFO] [stdout] 39: 0x5a5d51c90ae2 - std::thread::Builder::spawn_unchecked_::{{closure}}::hcb67e15a3f8d8d57 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/thread/mod.rs:520:30 [INFO] [stdout] 40: 0x5a5d51c90ae2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h272bd022d3f6f9a0 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x5a5d51e3407b - as core::ops::function::FnOnce>::call_once::h879ed15e79645e60 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/alloc/src/boxed.rs:2454:9 [INFO] [stdout] 42: 0x5a5d51e3407b - as core::ops::function::FnOnce>::call_once::h523a9a8eaa227d84 [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/alloc/src/boxed.rs:2454:9 [INFO] [stdout] 43: 0x5a5d51e3407b - std::sys::pal::unix::thread::Thread::new::thread_start::h6827be62cf511abb [INFO] [stdout] at /rustc/8dd5cd0bc1d683c30805e1dc831cac546b621a75/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x799a09f02ac3 - [INFO] [stdout] 45: 0x799a09f93a04 - clone [INFO] [stdout] 46: 0x0 - [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" "7a39912e27dec5330e32eabfe50e45836eb1d0871921f8a8e8e0edad0f933cb1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a39912e27dec5330e32eabfe50e45836eb1d0871921f8a8e8e0edad0f933cb1", kill_on_drop: false }` [INFO] [stdout] 7a39912e27dec5330e32eabfe50e45836eb1d0871921f8a8e8e0edad0f933cb1