[INFO] cloning repository https://github.com/fdelacruz/rustlings-solutions [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fdelacruz/rustlings-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffdelacruz%2Frustlings-solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffdelacruz%2Frustlings-solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1a028c3ea972ca7485045b8cf5d1524d97f0426c [INFO] testing fdelacruz/rustlings-solutions against master#552a959051cebf8f88a8f558399baf733bec9ce0 for pr-136932 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffdelacruz%2Frustlings-solutions" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/fdelacruz/rustlings-solutions on toolchain 552a959051cebf8f88a8f558399baf733bec9ce0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/fdelacruz/rustlings-solutions [INFO] finished tweaking git repo https://github.com/fdelacruz/rustlings-solutions [INFO] tweaked toml for git repo https://github.com/fdelacruz/rustlings-solutions written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/fdelacruz/rustlings-solutions 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" "+552a959051cebf8f88a8f558399baf733bec9ce0" "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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 919153873e6a99c81e3d3aa541ff3583d4f1ffd61616e88c5f58fd9555143894 [INFO] running `Command { std: "docker" "start" "-a" "919153873e6a99c81e3d3aa541ff3583d4f1ffd61616e88c5f58fd9555143894", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "919153873e6a99c81e3d3aa541ff3583d4f1ffd61616e88c5f58fd9555143894", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "919153873e6a99c81e3d3aa541ff3583d4f1ffd61616e88c5f58fd9555143894", kill_on_drop: false }` [INFO] [stdout] 919153873e6a99c81e3d3aa541ff3583d4f1ffd61616e88c5f58fd9555143894 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e683c40290c7691bb2877ab2adc441bfca466a66aa94388ffe1d2fa21aa94c14 [INFO] running `Command { std: "docker" "start" "-a" "e683c40290c7691bb2877ab2adc441bfca466a66aa94388ffe1d2fa21aa94c14", 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 cfg-if v1.0.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling aho-corasick v0.7.18 [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 filetime v0.2.15 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling console v0.15.0 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.5.9 [INFO] [stderr] Compiling rustlings v4.7.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 23.48s [INFO] running `Command { std: "docker" "inspect" "e683c40290c7691bb2877ab2adc441bfca466a66aa94388ffe1d2fa21aa94c14", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e683c40290c7691bb2877ab2adc441bfca466a66aa94388ffe1d2fa21aa94c14", kill_on_drop: false }` [INFO] [stdout] e683c40290c7691bb2877ab2adc441bfca466a66aa94388ffe1d2fa21aa94c14 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] df50cadb084e2e3446e402b693be9a47409bb65c8c3b180a1f311cd280033211 [INFO] running `Command { std: "docker" "start" "-a" "df50cadb084e2e3446e402b693be9a47409bb65c8c3b180a1f311cd280033211", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling escargot v0.4.0 [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 glob v0.3.0 [INFO] [stderr] Compiling predicates-tree v1.0.3 [INFO] [stderr] Compiling num-traits v0.2.14 [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 v4.7.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 6.04s [INFO] running `Command { std: "docker" "inspect" "df50cadb084e2e3446e402b693be9a47409bb65c8c3b180a1f311cd280033211", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "df50cadb084e2e3446e402b693be9a47409bb65c8c3b180a1f311cd280033211", kill_on_drop: false }` [INFO] [stdout] df50cadb084e2e3446e402b693be9a47409bb65c8c3b180a1f311cd280033211 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+552a959051cebf8f88a8f558399baf733bec9ce0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 3d2a4e938c3cd4dd8aaededea2f484e11c328089a4209582274dc44db47fa3b9 [INFO] running `Command { std: "docker" "start" "-a" "3d2a4e938c3cd4dd8aaededea2f484e11c328089a4209582274dc44db47fa3b9", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rustlings-dba15f5637fc0159) [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-476458978c7099a3) [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] [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: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: 0x625b45d09eb0 - std::backtrace_rs::backtrace::libunwind::trace::hff7ffeb2055d56f7 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x625b45d09eb0 - std::backtrace_rs::backtrace::trace_unsynchronized::he7b3446d48853094 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x625b45d09eb0 - std::sys::backtrace::_print_fmt::hc2f9f78a9d81f67e [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x625b45d09eb0 - ::fmt::h222ded249a1f0b37 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x625b45d32133 - core::fmt::rt::Argument::fmt::hf87ad28cd961f7a3 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x625b45d32133 - core::fmt::write::h9275005cf35b8a10 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/fmt/mod.rs:1449:21 [INFO] [stdout] 6: 0x625b45d06823 - std::io::Write::write_fmt::h9c45a7064b117632 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/io/mod.rs:1890:15 [INFO] [stdout] 7: 0x625b45d09d02 - std::sys::backtrace::BacktraceLock::print::hd225c6688b44ae93 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x625b45d0b2df - std::panicking::default_hook::{{closure}}::h2b0bdfbf5b027ac9 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:298:22 [INFO] [stdout] 9: 0x625b45d0b0f8 - std::panicking::default_hook::ha8790851fc656c1a [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:322:9 [INFO] [stdout] 10: 0x625b45ba4015 - as core::ops::function::Fn>::call::hdad4d0506655a157 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 11: 0x625b45ba4015 - test::test_main::{{closure}}::hdf61abd52acd3de0 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/test/src/lib.rs:135:21 [INFO] [stdout] 12: 0x625b45d0bdd3 - as core::ops::function::Fn>::call::h52c5bf698b1366e5 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 13: 0x625b45d0bdd3 - std::panicking::rust_panic_with_hook::ha306bc05bdb5b696 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:839:13 [INFO] [stdout] 14: 0x625b45d0ba8a - std::panicking::begin_panic_handler::{{closure}}::h2c0d6e717a62810c [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:704:13 [INFO] [stdout] 15: 0x625b45d0a3b9 - std::sys::backtrace::__rust_end_short_backtrace::h1e7465e8c528d13d [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 16: 0x625b45d0b71d - rust_begin_unwind [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:695:5 [INFO] [stdout] 17: 0x625b45d30ae0 - core::panicking::panic_fmt::h0c17c793f18e9c3f [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/panicking.rs:75:14 [INFO] [stdout] 18: 0x625b45d30f86 - core::result::unwrap_failed::hb71c1a118c26f2bc [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/result.rs:1704:5 [INFO] [stdout] 19: 0x625b45b6454a - core::result::Result::unwrap::h0bddedbbc0034552 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/result.rs:1109:23 [INFO] [stdout] 20: 0x625b45b6454a - rustlings::exercise::test::test_clean::h2c6402bc7a4f8edc [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:9 [INFO] [stdout] 21: 0x625b45b64487 - rustlings::exercise::test::test_clean::{{closure}}::hbbae6aaac7397a48 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:268:20 [INFO] [stdout] 22: 0x625b45b618e6 - core::ops::function::FnOnce::call_once::h6a580f7b6737646a [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x625b45ba980b - core::ops::function::FnOnce::call_once::ha8d13c24f305262f [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x625b45ba980b - test::__rust_begin_short_backtrace::hda7ed5913d26b4c3 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/test/src/lib.rs:637:18 [INFO] [stdout] 25: 0x625b45ba8688 - test::run_test_in_process::{{closure}}::h98799ac8ad05dc17 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/test/src/lib.rs:660:60 [INFO] [stdout] 26: 0x625b45ba8688 - as core::ops::function::FnOnce<()>>::call_once::h9915be725ed5cec7 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x625b45ba8688 - std::panicking::try::do_call::hdae5166dc0f6479b [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:587:40 [INFO] [stdout] 28: 0x625b45ba8688 - std::panicking::try::h8fa0f35111734e43 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:550:19 [INFO] [stdout] 29: 0x625b45ba8688 - std::panic::catch_unwind::h2c5c178909d676e7 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panic.rs:358:14 [INFO] [stdout] 30: 0x625b45ba8688 - test::run_test_in_process::h2157e57f25733f22 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/test/src/lib.rs:660:27 [INFO] [stdout] 31: 0x625b45ba8688 - test::run_test::{{closure}}::h22055a3e9dc56ab9 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/test/src/lib.rs:581:43 [INFO] [stdout] 32: 0x625b45b6b645 - test::run_test::{{closure}}::h0de666e52c64b314 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/test/src/lib.rs:611:41 [INFO] [stdout] 33: 0x625b45b6b645 - std::sys::backtrace::__rust_begin_short_backtrace::hc24dfc6dbc7f5867 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 34: 0x625b45b6efca - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h036a075b14c8a889 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 35: 0x625b45b6efca - as core::ops::function::FnOnce<()>>::call_once::h77e5e1e1c11b3182 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x625b45b6efca - std::panicking::try::do_call::h64009ce4a7d5024a [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:587:40 [INFO] [stdout] 37: 0x625b45b6efca - std::panicking::try::h9f253851f45b6cf2 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:550:19 [INFO] [stdout] 38: 0x625b45b6efca - std::panic::catch_unwind::hbcdf318df191e0d2 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panic.rs:358:14 [INFO] [stdout] 39: 0x625b45b6efca - std::thread::Builder::spawn_unchecked_::{{closure}}::h1b0514eb1722a9bb [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 40: 0x625b45b6efca - core::ops::function::FnOnce::call_once{{vtable.shim}}::h49ed8239622cf2ed [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x625b45d0fe0b - as core::ops::function::FnOnce>::call_once::h5d46408001e51da6 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 42: 0x625b45d0fe0b - as core::ops::function::FnOnce>::call_once::hfb44b07af29285a8 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 43: 0x625b45d0fe0b - std::sys::pal::unix::thread::Thread::new::thread_start::h3fe202b40d9df201 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/sys/pal/unix/thread.rs:106:17 [INFO] [stdout] 44: 0x70d9ff305ac3 - [INFO] [stdout] 45: 0x70d9ff396a04 - 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: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/./rmetaibrKlb\"\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: 0x625b45d09eb0 - std::backtrace_rs::backtrace::libunwind::trace::hff7ffeb2055d56f7 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x625b45d09eb0 - std::backtrace_rs::backtrace::trace_unsynchronized::he7b3446d48853094 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x625b45d09eb0 - std::sys::backtrace::_print_fmt::hc2f9f78a9d81f67e [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x625b45d09eb0 - ::fmt::h222ded249a1f0b37 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x625b45d32133 - core::fmt::rt::Argument::fmt::hf87ad28cd961f7a3 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x625b45d32133 - core::fmt::write::h9275005cf35b8a10 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/fmt/mod.rs:1449:21 [INFO] [stdout] 6: 0x625b45d06823 - std::io::Write::write_fmt::h9c45a7064b117632 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/io/mod.rs:1890:15 [INFO] [stdout] 7: 0x625b45d09d02 - std::sys::backtrace::BacktraceLock::print::hd225c6688b44ae93 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x625b45d0b2df - std::panicking::default_hook::{{closure}}::h2b0bdfbf5b027ac9 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:298:22 [INFO] [stdout] 9: 0x625b45d0b0f8 - std::panicking::default_hook::ha8790851fc656c1a [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:322:9 [INFO] [stdout] 10: 0x625b45ba4015 - as core::ops::function::Fn>::call::hdad4d0506655a157 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 11: 0x625b45ba4015 - test::test_main::{{closure}}::hdf61abd52acd3de0 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/test/src/lib.rs:135:21 [INFO] [stdout] 12: 0x625b45d0bdd3 - as core::ops::function::Fn>::call::h52c5bf698b1366e5 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 13: 0x625b45d0bdd3 - std::panicking::rust_panic_with_hook::ha306bc05bdb5b696 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:839:13 [INFO] [stdout] 14: 0x625b45d0ba8a - std::panicking::begin_panic_handler::{{closure}}::h2c0d6e717a62810c [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:704:13 [INFO] [stdout] 15: 0x625b45d0a3b9 - std::sys::backtrace::__rust_end_short_backtrace::h1e7465e8c528d13d [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 16: 0x625b45d0b71d - rust_begin_unwind [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:695:5 [INFO] [stdout] 17: 0x625b45d30ae0 - core::panicking::panic_fmt::h0c17c793f18e9c3f [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/panicking.rs:75:14 [INFO] [stdout] 18: 0x625b45d30f86 - core::result::unwrap_failed::hb71c1a118c26f2bc [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/result.rs:1704:5 [INFO] [stdout] 19: 0x625b45b653c6 - core::result::Result::unwrap::h72056d170505f570 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/result.rs:1109:23 [INFO] [stdout] 20: 0x625b45b653c6 - rustlings::exercise::test::test_exercise_with_output::h177c958628455359 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:342:19 [INFO] [stdout] 21: 0x625b45b651d7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h80f98316c2fefbab [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:335:35 [INFO] [stdout] 22: 0x625b45b618a6 - core::ops::function::FnOnce::call_once::h66837a593f0a8b3a [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x625b45ba980b - core::ops::function::FnOnce::call_once::ha8d13c24f305262f [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x625b45ba980b - test::__rust_begin_short_backtrace::hda7ed5913d26b4c3 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/test/src/lib.rs:637:18 [INFO] [stdout] 25: 0x625b45ba8688 - test::run_test_in_process::{{closure}}::h98799ac8ad05dc17 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/test/src/lib.rs:660:60 [INFO] [stdout] 26: 0x625b45ba8688 - as core::ops::function::FnOnce<()>>::call_once::h9915be725ed5cec7 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x625b45ba8688 - std::panicking::try::do_call::hdae5166dc0f6479b [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:587:40 [INFO] [stdout] 28: 0x625b45ba8688 - std::panicking::try::h8fa0f35111734e43 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:550:19 [INFO] [stdout] 29: 0x625b45ba8688 - std::panic::catch_unwind::h2c5c178909d676e7 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panic.rs:358:14 [INFO] [stdout] 30: 0x625b45ba8688 - test::run_test_in_process::h2157e57f25733f22 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/test/src/lib.rs:660:27 [INFO] [stdout] 31: 0x625b45ba8688 - test::run_test::{{closure}}::h22055a3e9dc56ab9 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/test/src/lib.rs:581:43 [INFO] [stdout] 32: 0x625b45b6b645 - test::run_test::{{closure}}::h0de666e52c64b314 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/test/src/lib.rs:611:41 [INFO] [stdout] 33: 0x625b45b6b645 - std::sys::backtrace::__rust_begin_short_backtrace::hc24dfc6dbc7f5867 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 34: 0x625b45b6efca - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h036a075b14c8a889 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 35: 0x625b45b6efca - as core::ops::function::FnOnce<()>>::call_once::h77e5e1e1c11b3182 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x625b45b6efca - std::panicking::try::do_call::h64009ce4a7d5024a [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:587:40 [INFO] [stdout] 37: 0x625b45b6efca - std::panicking::try::h9f253851f45b6cf2 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panicking.rs:550:19 [INFO] [stdout] 38: 0x625b45b6efca - std::panic::catch_unwind::hbcdf318df191e0d2 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/panic.rs:358:14 [INFO] [stdout] 39: 0x625b45b6efca - std::thread::Builder::spawn_unchecked_::{{closure}}::h1b0514eb1722a9bb [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 40: 0x625b45b6efca - core::ops::function::FnOnce::call_once{{vtable.shim}}::h49ed8239622cf2ed [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x625b45d0fe0b - as core::ops::function::FnOnce>::call_once::h5d46408001e51da6 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 42: 0x625b45d0fe0b - as core::ops::function::FnOnce>::call_once::hfb44b07af29285a8 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 43: 0x625b45d0fe0b - std::sys::pal::unix::thread::Thread::new::thread_start::h3fe202b40d9df201 [INFO] [stdout] at /rustc/552a959051cebf8f88a8f558399baf733bec9ce0/library/std/src/sys/pal/unix/thread.rs:106:17 [INFO] [stdout] 44: 0x70d9ff305ac3 - [INFO] [stdout] 45: 0x70d9ff396a04 - 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 0.10s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "3d2a4e938c3cd4dd8aaededea2f484e11c328089a4209582274dc44db47fa3b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3d2a4e938c3cd4dd8aaededea2f484e11c328089a4209582274dc44db47fa3b9", kill_on_drop: false }` [INFO] [stdout] 3d2a4e938c3cd4dd8aaededea2f484e11c328089a4209582274dc44db47fa3b9