[INFO] cloning repository https://github.com/LearningOS/rust-rustlings-2024-spring-page0egap [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-2024-spring-page0egap" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2024-spring-page0egap", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2024-spring-page0egap'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3eb32e43d3fbc357f1f7e01e0ae520162423a1f9 [INFO] testing LearningOS/rust-rustlings-2024-spring-page0egap against try#7af779037716ae4125ceabb429791b4cf5dd0a43 for pr-136932 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2024-spring-page0egap" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LearningOS/rust-rustlings-2024-spring-page0egap on toolchain 7af779037716ae4125ceabb429791b4cf5dd0a43 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/LearningOS/rust-rustlings-2024-spring-page0egap [INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-2024-spring-page0egap [INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-2024-spring-page0egap written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/LearningOS/rust-rustlings-2024-spring-page0egap 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" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded argh_shared v0.1.10 [INFO] [stderr] Downloaded argh_derive v0.1.10 [INFO] [stderr] Downloaded argh v0.1.10 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 563f553de5a04eab876198cd0d010a8b672b59e6240ba245757e7a741edd3b93 [INFO] running `Command { std: "docker" "start" "-a" "563f553de5a04eab876198cd0d010a8b672b59e6240ba245757e7a741edd3b93", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "563f553de5a04eab876198cd0d010a8b672b59e6240ba245757e7a741edd3b93", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "563f553de5a04eab876198cd0d010a8b672b59e6240ba245757e7a741edd3b93", kill_on_drop: false }` [INFO] [stdout] 563f553de5a04eab876198cd0d010a8b672b59e6240ba245757e7a741edd3b93 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8fae8f7422b97308f88799b44413ecad0b239fdedd676ec5d5903f3bd2a44b66 [INFO] running `Command { std: "docker" "start" "-a" "8fae8f7422b97308f88799b44413ecad0b239fdedd676ec5d5903f3bd2a44b66", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling proc-macro2 v1.0.64 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling unicode-ident v1.0.10 [INFO] [stderr] Compiling quote v1.0.29 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Compiling serde v1.0.171 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling smallvec v1.11.0 [INFO] [stderr] Compiling log v0.4.19 [INFO] [stderr] Compiling regex-syntax v0.7.4 [INFO] [stderr] Compiling scopeguard v1.2.0 [INFO] [stderr] Compiling argh_shared v0.1.10 [INFO] [stderr] Compiling unicode-width v0.1.10 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling serde_json v1.0.102 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling pin-project-lite v0.2.10 [INFO] [stderr] Compiling ryu v1.0.14 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling bytes v1.4.0 [INFO] [stderr] Compiling itoa v1.0.8 [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stderr] Compiling home v0.5.5 [INFO] [stderr] Compiling walkdir v2.3.3 [INFO] [stderr] Compiling slab v0.4.8 [INFO] [stderr] Compiling lock_api v0.4.10 [INFO] [stderr] Compiling tokio v1.29.1 [INFO] [stderr] Compiling aho-corasick v1.0.2 [INFO] [stderr] Compiling net2 v0.2.39 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling socket2 v0.4.9 [INFO] [stderr] Compiling filetime v0.2.21 [INFO] [stderr] Compiling mio v0.8.8 [INFO] [stderr] Compiling signal-hook-registry v1.4.1 [INFO] [stderr] Compiling num_cpus v1.16.0 [INFO] [stderr] Compiling console v0.15.7 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling syn v2.0.25 [INFO] [stderr] Compiling parking_lot v0.12.1 [INFO] [stderr] Compiling regex-automata v0.3.3 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling argh_derive v0.1.10 [INFO] [stderr] Compiling argh v0.1.10 [INFO] [stderr] Compiling regex v1.9.1 [INFO] [stderr] Compiling serde_derive v1.0.171 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling toml v0.5.11 [INFO] [stderr] Compiling rustlings v5.5.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.31s [INFO] running `Command { std: "docker" "inspect" "8fae8f7422b97308f88799b44413ecad0b239fdedd676ec5d5903f3bd2a44b66", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8fae8f7422b97308f88799b44413ecad0b239fdedd676ec5d5903f3bd2a44b66", kill_on_drop: false }` [INFO] [stdout] 8fae8f7422b97308f88799b44413ecad0b239fdedd676ec5d5903f3bd2a44b66 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5449a3bca956c1a1e46993abfc11db0cf5b7e5b0fd566fec2217d4cb796a9464 [INFO] running `Command { std: "docker" "start" "-a" "5449a3bca956c1a1e46993abfc11db0cf5b7e5b0fd566fec2217d4cb796a9464", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling predicates-core v1.0.6 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling termtree v0.4.1 [INFO] [stderr] Compiling predicates-tree v1.0.9 [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 v5.5.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 4.77s [INFO] running `Command { std: "docker" "inspect" "5449a3bca956c1a1e46993abfc11db0cf5b7e5b0fd566fec2217d4cb796a9464", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5449a3bca956c1a1e46993abfc11db0cf5b7e5b0fd566fec2217d4cb796a9464", kill_on_drop: false }` [INFO] [stdout] 5449a3bca956c1a1e46993abfc11db0cf5b7e5b0fd566fec2217d4cb796a9464 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+7af779037716ae4125ceabb429791b4cf5dd0a43" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 93708f74bd49221d44a182a3deaa37301cc73f5a183acebd117c56eb2b923025 [INFO] running `Command { std: "docker" "start" "-a" "93708f74bd49221d44a182a3deaa37301cc73f5a183acebd117c56eb2b923025", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-7747afdab9b9b976) [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] [INFO] [stdout] thread 'exercise::test::test_clean' panicked at src/exercise.rs:303:36: [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: 0x644e052e129f - std::backtrace_rs::backtrace::libunwind::trace::h273cca4b4ff52a75 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x644e052e129f - std::backtrace_rs::backtrace::trace_unsynchronized::h0dcaf4eaddc63f4d [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x644e052e129f - std::sys::backtrace::_print_fmt::h99227612ab693c91 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x644e052e129f - ::fmt::hd0fb9a24f673249b [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x644e05309933 - core::fmt::rt::Argument::fmt::h3790bd73ff49839a [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/fmt/rt.rs:184:76 [INFO] [stdout] 5: 0x644e05309933 - core::fmt::write::hf7b505e27c2f59c0 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/fmt/mod.rs:1449:21 [INFO] [stdout] 6: 0x644e052ddd43 - std::io::Write::write_fmt::hb002ef36900cedb4 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/io/mod.rs:1890:15 [INFO] [stdout] 7: 0x644e052e10f2 - std::sys::backtrace::BacktraceLock::print::h5fa244ae2c1a02f2 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x644e052e26cf - std::panicking::default_hook::{{closure}}::hd977fe155ed94062 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:298:22 [INFO] [stdout] 9: 0x644e052e24e8 - std::panicking::default_hook::hf1aee4d1a1a53629 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:322:9 [INFO] [stdout] 10: 0x644e05096095 - as core::ops::function::Fn>::call::h863d5366fd8956b9 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 11: 0x644e05096095 - test::test_main::{{closure}}::h069467131d9eccce [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/test/src/lib.rs:135:21 [INFO] [stdout] 12: 0x644e052e31c3 - as core::ops::function::Fn>::call::h4d850f4eb7d2da54 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 13: 0x644e052e31c3 - std::panicking::rust_panic_with_hook::h8442779a6bb2c045 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:839:13 [INFO] [stdout] 14: 0x644e052e2e7a - std::panicking::begin_panic_handler::{{closure}}::h5fc7eacd91180541 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:704:13 [INFO] [stdout] 15: 0x644e052e17b9 - std::sys::backtrace::__rust_end_short_backtrace::h83d61fb88e4c1551 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 16: 0x644e052e2b0d - rust_begin_unwind [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:695:5 [INFO] [stdout] 17: 0x644e05307fe0 - core::panicking::panic_fmt::hcb1ec5c71ed9d2aa [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/panicking.rs:75:14 [INFO] [stdout] 18: 0x644e05308496 - core::result::unwrap_failed::h934cbc059c4c1385 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/result.rs:1704:5 [INFO] [stdout] 19: 0x644e0505330a - core::result::Result::unwrap::hf7a44450655e82af [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/result.rs:1109:23 [INFO] [stdout] 20: 0x644e0505330a - rustlings::exercise::test::test_clean::h5da89dd9d0d7d839 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:303:9 [INFO] [stdout] 21: 0x644e05053247 - rustlings::exercise::test::test_clean::{{closure}}::h6f0aa3fb257357ff [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:302:20 [INFO] [stdout] 22: 0x644e05051046 - core::ops::function::FnOnce::call_once::hcfc381edeaf7dd25 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x644e0509b8ab - core::ops::function::FnOnce::call_once::h4f53344eaef367a7 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x644e0509b8ab - test::__rust_begin_short_backtrace::hd74e5b45349ae0eb [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/test/src/lib.rs:637:18 [INFO] [stdout] 25: 0x644e0509a708 - test::run_test_in_process::{{closure}}::h464496cd0c1c7008 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/test/src/lib.rs:660:60 [INFO] [stdout] 26: 0x644e0509a708 - as core::ops::function::FnOnce<()>>::call_once::h783dbf339886dbb5 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x644e0509a708 - std::panicking::try::do_call::h939d38eaf9984278 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:587:40 [INFO] [stdout] 28: 0x644e0509a708 - std::panicking::try::h7462749e6e425b58 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:550:19 [INFO] [stdout] 29: 0x644e0509a708 - std::panic::catch_unwind::hd7e0994ef35a8a51 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panic.rs:358:14 [INFO] [stdout] 30: 0x644e0509a708 - test::run_test_in_process::hf0a6730e4eaf615d [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/test/src/lib.rs:660:27 [INFO] [stdout] 31: 0x644e0509a708 - test::run_test::{{closure}}::h6563d57083dce3d5 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/test/src/lib.rs:581:43 [INFO] [stdout] 32: 0x644e0505d685 - test::run_test::{{closure}}::hd77e8481970892f0 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/test/src/lib.rs:611:41 [INFO] [stdout] 33: 0x644e0505d685 - std::sys::backtrace::__rust_begin_short_backtrace::h3affc308abe149f2 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 34: 0x644e0506102a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h0bcb7f1fc989ad90 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 35: 0x644e0506102a - as core::ops::function::FnOnce<()>>::call_once::h7f1d3c81251e8f39 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x644e0506102a - std::panicking::try::do_call::ha04f8c9df155cd96 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:587:40 [INFO] [stdout] 37: 0x644e0506102a - std::panicking::try::hbac6309ffcaaa153 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:550:19 [INFO] [stdout] 38: 0x644e0506102a - std::panic::catch_unwind::h05df0eec2faa6d0d [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panic.rs:358:14 [INFO] [stdout] 39: 0x644e0506102a - std::thread::Builder::spawn_unchecked_::{{closure}}::h0931fb094701c63d [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 40: 0x644e0506102a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h58033be664b55387 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x644e052e720b - as core::ops::function::FnOnce>::call_once::hc2b66a72ea953e16 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 42: 0x644e052e720b - as core::ops::function::FnOnce>::call_once::h64ac890f18adb1a4 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 43: 0x644e052e720b - std::sys::pal::unix::thread::Thread::new::thread_start::h8744afc3d48ab12e [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/sys/pal/unix/thread.rs:106:17 [INFO] [stdout] 44: 0x764ea574cac3 - [INFO] [stdout] 45: 0x764ea57dda04 - clone [INFO] [stdout] 46: 0x0 - [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'exercise::test::test_exercise_with_output' panicked at src/exercise.rs:376:38: [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/./rmetaDUXCpo\"\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: 0x644e052e129f - std::backtrace_rs::backtrace::libunwind::trace::h273cca4b4ff52a75 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x644e052e129f - std::backtrace_rs::backtrace::trace_unsynchronized::h0dcaf4eaddc63f4d [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x644e052e129f - std::sys::backtrace::_print_fmt::h99227612ab693c91 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x644e052e129f - ::fmt::hd0fb9a24f673249b [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x644e05309933 - core::fmt::rt::Argument::fmt::h3790bd73ff49839a [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/fmt/rt.rs:184:76 [INFO] [stdout] 5: 0x644e05309933 - core::fmt::write::hf7b505e27c2f59c0 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/fmt/mod.rs:1449:21 [INFO] [stdout] 6: 0x644e052ddd43 - std::io::Write::write_fmt::hb002ef36900cedb4 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/io/mod.rs:1890:15 [INFO] [stdout] 7: 0x644e052e10f2 - std::sys::backtrace::BacktraceLock::print::h5fa244ae2c1a02f2 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x644e052e26cf - std::panicking::default_hook::{{closure}}::hd977fe155ed94062 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:298:22 [INFO] [stdout] 9: 0x644e052e24e8 - std::panicking::default_hook::hf1aee4d1a1a53629 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:322:9 [INFO] [stdout] 10: 0x644e05096095 - as core::ops::function::Fn>::call::h863d5366fd8956b9 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 11: 0x644e05096095 - test::test_main::{{closure}}::h069467131d9eccce [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/test/src/lib.rs:135:21 [INFO] [stdout] 12: 0x644e052e31c3 - as core::ops::function::Fn>::call::h4d850f4eb7d2da54 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 13: 0x644e052e31c3 - std::panicking::rust_panic_with_hook::h8442779a6bb2c045 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:839:13 [INFO] [stdout] 14: 0x644e052e2e7a - std::panicking::begin_panic_handler::{{closure}}::h5fc7eacd91180541 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:704:13 [INFO] [stdout] 15: 0x644e052e17b9 - std::sys::backtrace::__rust_end_short_backtrace::h83d61fb88e4c1551 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 16: 0x644e052e2b0d - rust_begin_unwind [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:695:5 [INFO] [stdout] 17: 0x644e05307fe0 - core::panicking::panic_fmt::hcb1ec5c71ed9d2aa [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/panicking.rs:75:14 [INFO] [stdout] 18: 0x644e05308496 - core::result::unwrap_failed::h934cbc059c4c1385 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/result.rs:1704:5 [INFO] [stdout] 19: 0x644e050541aa - core::result::Result::unwrap::he1856ec392639a74 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/result.rs:1109:23 [INFO] [stdout] 20: 0x644e050541aa - rustlings::exercise::test::test_exercise_with_output::hfded8658d5f3faca [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:376:19 [INFO] [stdout] 21: 0x644e05053fb7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h4a43ed39b755aac5 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:369:35 [INFO] [stdout] 22: 0x644e05051006 - core::ops::function::FnOnce::call_once::hcbb111087a6a55af [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x644e0509b8ab - core::ops::function::FnOnce::call_once::h4f53344eaef367a7 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x644e0509b8ab - test::__rust_begin_short_backtrace::hd74e5b45349ae0eb [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/test/src/lib.rs:637:18 [INFO] [stdout] 25: 0x644e0509a708 - test::run_test_in_process::{{closure}}::h464496cd0c1c7008 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/test/src/lib.rs:660:60 [INFO] [stdout] 26: 0x644e0509a708 - as core::ops::function::FnOnce<()>>::call_once::h783dbf339886dbb5 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x644e0509a708 - std::panicking::try::do_call::h939d38eaf9984278 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:587:40 [INFO] [stdout] 28: 0x644e0509a708 - std::panicking::try::h7462749e6e425b58 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:550:19 [INFO] [stdout] 29: 0x644e0509a708 - std::panic::catch_unwind::hd7e0994ef35a8a51 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panic.rs:358:14 [INFO] [stdout] 30: 0x644e0509a708 - test::run_test_in_process::hf0a6730e4eaf615d [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/test/src/lib.rs:660:27 [INFO] [stdout] 31: 0x644e0509a708 - test::run_test::{{closure}}::h6563d57083dce3d5 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/test/src/lib.rs:581:43 [INFO] [stdout] 32: 0x644e0505d685 - test::run_test::{{closure}}::hd77e8481970892f0 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/test/src/lib.rs:611:41 [INFO] [stdout] 33: 0x644e0505d685 - std::sys::backtrace::__rust_begin_short_backtrace::h3affc308abe149f2 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 34: 0x644e0506102a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h0bcb7f1fc989ad90 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 35: 0x644e0506102a - as core::ops::function::FnOnce<()>>::call_once::h7f1d3c81251e8f39 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x644e0506102a - std::panicking::try::do_call::ha04f8c9df155cd96 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:587:40 [INFO] [stdout] 37: 0x644e0506102a - std::panicking::try::hbac6309ffcaaa153 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panicking.rs:550:19 [INFO] [stdout] 38: 0x644e0506102a - std::panic::catch_unwind::h05df0eec2faa6d0d [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/panic.rs:358:14 [INFO] [stdout] 39: 0x644e0506102a - std::thread::Builder::spawn_unchecked_::{{closure}}::h0931fb094701c63d [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 40: 0x644e0506102a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h58033be664b55387 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x644e052e720b - as core::ops::function::FnOnce>::call_once::hc2b66a72ea953e16 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 42: 0x644e052e720b - as core::ops::function::FnOnce>::call_once::h64ac890f18adb1a4 [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 43: 0x644e052e720b - std::sys::pal::unix::thread::Thread::new::thread_start::h8744afc3d48ab12e [INFO] [stdout] at /rustc/7af779037716ae4125ceabb429791b4cf5dd0a43/library/std/src/sys/pal/unix/thread.rs:106:17 [INFO] [stdout] 44: 0x764ea574cac3 - [INFO] [stdout] 45: 0x764ea57dda04 - 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 0.11s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "93708f74bd49221d44a182a3deaa37301cc73f5a183acebd117c56eb2b923025", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "93708f74bd49221d44a182a3deaa37301cc73f5a183acebd117c56eb2b923025", kill_on_drop: false }` [INFO] [stdout] 93708f74bd49221d44a182a3deaa37301cc73f5a183acebd117c56eb2b923025