[INFO] cloning repository https://github.com/LearningOS/learn_rust_rustlings-CL-a11y [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LearningOS/learn_rust_rustlings-CL-a11y" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-CL-a11y", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-CL-a11y'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d17567e336ce1b02774f7692558e5af649fbb41d [INFO] testing LearningOS/learn_rust_rustlings-CL-a11y against 1.76.0 for beta-1.77-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-CL-a11y" "/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/learn_rust_rustlings-CL-a11y on toolchain 1.76.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-CL-a11y [INFO] finished tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-CL-a11y [INFO] tweaked toml for git repo https://github.com/LearningOS/learn_rust_rustlings-CL-a11y written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/LearningOS/learn_rust_rustlings-CL-a11y 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" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] testing LearningOS/learn_rust_rustlings-CL-a11y against beta-2024-02-10 for beta-1.77-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-CL-a11y" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LearningOS/learn_rust_rustlings-CL-a11y on toolchain beta-2024-02-10 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-CL-a11y [INFO] finished tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-CL-a11y [INFO] tweaked toml for git repo https://github.com/LearningOS/learn_rust_rustlings-CL-a11y written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/LearningOS/learn_rust_rustlings-CL-a11y already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] testing LearningOS/learn_rust_rustlings-CL-a11y against beta-2024-02-10 for beta-1.77-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-CL-a11y" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LearningOS/learn_rust_rustlings-CL-a11y on toolchain beta-2024-02-10 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-CL-a11y [INFO] finished tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-CL-a11y [INFO] tweaked toml for git repo https://github.com/LearningOS/learn_rust_rustlings-CL-a11y written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/LearningOS/learn_rust_rustlings-CL-a11y already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 41b5650fd6e319e29ad71625d0e83960a543909445d025f4945e644f6de43b48 [INFO] running `Command { std: "docker" "start" "-a" "41b5650fd6e319e29ad71625d0e83960a543909445d025f4945e644f6de43b48", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "41b5650fd6e319e29ad71625d0e83960a543909445d025f4945e644f6de43b48", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "41b5650fd6e319e29ad71625d0e83960a543909445d025f4945e644f6de43b48", kill_on_drop: false }` [INFO] [stdout] 41b5650fd6e319e29ad71625d0e83960a543909445d025f4945e644f6de43b48 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] beb205edcbb6369e4cb9766b0788a1edfa823b00383b2de06227deea75b5b2f4 [INFO] running `Command { std: "docker" "start" "-a" "beb205edcbb6369e4cb9766b0788a1edfa823b00383b2de06227deea75b5b2f4", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling itoa v1.0.2 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling home v0.5.3 [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 terminal_size v0.1.17 [INFO] [stderr] Compiling inotify-sys v0.1.5 [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 regex v1.5.5 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling console v0.15.0 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.5.9 [INFO] [stderr] Compiling rustlings v4.8.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 18.64s [INFO] running `Command { std: "docker" "inspect" "beb205edcbb6369e4cb9766b0788a1edfa823b00383b2de06227deea75b5b2f4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "beb205edcbb6369e4cb9766b0788a1edfa823b00383b2de06227deea75b5b2f4", kill_on_drop: false }` [INFO] [stdout] beb205edcbb6369e4cb9766b0788a1edfa823b00383b2de06227deea75b5b2f4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 39f6488acfafd04e07b70764a3a08005f67eff98e98dc93f86df60927c4b753a [INFO] running `Command { std: "docker" "start" "-a" "39f6488acfafd04e07b70764a3a08005f67eff98e98dc93f86df60927c4b753a", 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 treeline v0.1.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling predicates-tree v1.0.3 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling predicates v1.0.8 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v4.8.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.92s [INFO] running `Command { std: "docker" "inspect" "39f6488acfafd04e07b70764a3a08005f67eff98e98dc93f86df60927c4b753a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "39f6488acfafd04e07b70764a3a08005f67eff98e98dc93f86df60927c4b753a", kill_on_drop: false }` [INFO] [stdout] 39f6488acfafd04e07b70764a3a08005f67eff98e98dc93f86df60927c4b753a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 15fc4c888182b8159e87b1970dd36b46c6708340ed0adb1520b398655f64768e [INFO] running `Command { std: "docker" "start" "-a" "15fc4c888182b8159e87b1970dd36b46c6708340ed0adb1520b398655f64768e", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rustlings-b5a5df403cc34129) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-028cc23d351d14a1) [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: 0x5589b0181426 - std::backtrace_rs::backtrace::libunwind::trace::h140b6deb6a45c671 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 [INFO] [stdout] 1: 0x5589b0181426 - std::backtrace_rs::backtrace::trace_unsynchronized::h8450d7e4e9219aed [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5589b0181426 - std::sys_common::backtrace::_print_fmt::hbd28e5e6c6fc3a3f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x5589b0181426 - ::fmt::hb058f285768cf98e [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x5589b01aa260 - core::fmt::rt::Argument::fmt::h87dec7a95127da24 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/fmt/rt.rs:142:9 [INFO] [stdout] 5: 0x5589b01aa260 - core::fmt::write::h873f89a91a4832db [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/fmt/mod.rs:1120:17 [INFO] [stdout] 6: 0x5589b017ec5f - std::io::Write::write_fmt::h90f651e9e694a4bb [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/io/mod.rs:1846:15 [INFO] [stdout] 7: 0x5589b0181204 - std::sys_common::backtrace::_print::h7719d1529d9a9e13 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x5589b0181204 - std::sys_common::backtrace::print::haa3afbd0e7947108 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x5589b0182f77 - std::panicking::default_hook::{{closure}}::h10e3de2ec0eaff22 [INFO] [stdout] 10: 0x5589b0182c5d - std::panicking::default_hook::hbdc1b1b7fe073dab [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:289:9 [INFO] [stdout] 11: 0x5589b0003967 - as core::ops::function::Fn>::call::h20f7887d7cd0a330 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 12: 0x5589b0003967 - test::test_main::{{closure}}::hc125a615957b5cb1 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:138:21 [INFO] [stdout] 13: 0x5589b0183596 - as core::ops::function::Fn>::call::h8c19e0590f8443c4 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 14: 0x5589b0183596 - std::panicking::rust_panic_with_hook::hb81692602460473d [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:785:13 [INFO] [stdout] 15: 0x5589b01832e2 - std::panicking::begin_panic_handler::{{closure}}::h2470593aa2678e9c [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:659:13 [INFO] [stdout] 16: 0x5589b0181926 - std::sys_common::backtrace::__rust_end_short_backtrace::h560bb50225b0562b [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x5589b0183034 - rust_begin_unwind [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:647:5 [INFO] [stdout] 18: 0x5589affbdd35 - core::panicking::panic_fmt::h29b6f262f6458dc3 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x5589affbe313 - core::result::unwrap_failed::h12bc80647957bcdb [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/result.rs:1649:5 [INFO] [stdout] 20: 0x5589affc381a - core::result::Result::unwrap::hd54ca30c873a0544 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/result.rs:1073:23 [INFO] [stdout] 21: 0x5589affc381a - rustlings::exercise::test::test_clean::hc34bb326fc9e1e09 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:9 [INFO] [stdout] 22: 0x5589affc3757 - rustlings::exercise::test::test_clean::{{closure}}::hd2a0893ebeffe8b0 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:268:20 [INFO] [stdout] 23: 0x5589affbf976 - core::ops::function::FnOnce::call_once::hae67248d4bd8c417 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5589b000955f - core::ops::function::FnOnce::call_once::h692fe6f34484199f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x5589b000955f - test::__rust_begin_short_backtrace::h48b62e76bd60e2de [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:621:18 [INFO] [stdout] 26: 0x5589b0008381 - test::run_test_in_process::{{closure}}::h1c68597526ef43db [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:644:60 [INFO] [stdout] 27: 0x5589b0008381 - as core::ops::function::FnOnce<()>>::call_once::hcae98092997f976b [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x5589b0008381 - std::panicking::try::do_call::h8d1548c2f5bb535a [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:554:40 [INFO] [stdout] 29: 0x5589b0008381 - std::panicking::try::hbb7a2054f484688e [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:518:19 [INFO] [stdout] 30: 0x5589b0008381 - std::panic::catch_unwind::h696d12d9d80497c2 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x5589b0008381 - test::run_test_in_process::h053367a7217c825b [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:644:27 [INFO] [stdout] 32: 0x5589b0008381 - test::run_test::{{closure}}::hfa524e9fabcba78e [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:567:43 [INFO] [stdout] 33: 0x5589affcf7e6 - test::run_test::{{closure}}::h2c4d0bb741ef7f9f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:595:41 [INFO] [stdout] 34: 0x5589affcf7e6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h0d2c708415550075 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x5589affd47a7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h76e2635840d7293f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 36: 0x5589affd47a7 - as core::ops::function::FnOnce<()>>::call_once::haa640b67a810a214 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x5589affd47a7 - std::panicking::try::do_call::h41892e3bc2807ab5 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:554:40 [INFO] [stdout] 38: 0x5589affd47a7 - std::panicking::try::h861a16d180681c80 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:518:19 [INFO] [stdout] 39: 0x5589affd47a7 - std::panic::catch_unwind::h8195f9064b1509fa [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x5589affd47a7 - std::thread::Builder::spawn_unchecked_::{{closure}}::h73cc419da1217371 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 41: 0x5589affd47a7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h79dc6499ff073b09 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x5589b0187ac5 - as core::ops::function::FnOnce>::call_once::ha718e8cdc51a5182 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 43: 0x5589b0187ac5 - as core::ops::function::FnOnce>::call_once::h86072abc877c5474 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 44: 0x5589b0187ac5 - std::sys::pal::unix::thread::Thread::new::thread_start::hac4056197c365894 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys/pal/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7f78ddeb3ac3 - [INFO] [stdout] 46: 0x7f78ddf44bf4 - __clone [INFO] [stdout] 47: 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/./rmetaPPcJkR\"\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: 0x5589b0181426 - std::backtrace_rs::backtrace::libunwind::trace::h140b6deb6a45c671 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 [INFO] [stdout] 1: 0x5589b0181426 - std::backtrace_rs::backtrace::trace_unsynchronized::h8450d7e4e9219aed [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5589b0181426 - std::sys_common::backtrace::_print_fmt::hbd28e5e6c6fc3a3f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x5589b0181426 - ::fmt::hb058f285768cf98e [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x5589b01aa260 - core::fmt::rt::Argument::fmt::h87dec7a95127da24 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/fmt/rt.rs:142:9 [INFO] [stdout] 5: 0x5589b01aa260 - core::fmt::write::h873f89a91a4832db [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/fmt/mod.rs:1120:17 [INFO] [stdout] 6: 0x5589b017ec5f - std::io::Write::write_fmt::h90f651e9e694a4bb [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/io/mod.rs:1846:15 [INFO] [stdout] 7: 0x5589b0181204 - std::sys_common::backtrace::_print::h7719d1529d9a9e13 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x5589b0181204 - std::sys_common::backtrace::print::haa3afbd0e7947108 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x5589b0182f77 - std::panicking::default_hook::{{closure}}::h10e3de2ec0eaff22 [INFO] [stdout] 10: 0x5589b0182c5d - std::panicking::default_hook::hbdc1b1b7fe073dab [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:289:9 [INFO] [stdout] 11: 0x5589b0003967 - as core::ops::function::Fn>::call::h20f7887d7cd0a330 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 12: 0x5589b0003967 - test::test_main::{{closure}}::hc125a615957b5cb1 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:138:21 [INFO] [stdout] 13: 0x5589b0183596 - as core::ops::function::Fn>::call::h8c19e0590f8443c4 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 14: 0x5589b0183596 - std::panicking::rust_panic_with_hook::hb81692602460473d [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:785:13 [INFO] [stdout] 15: 0x5589b01832e2 - std::panicking::begin_panic_handler::{{closure}}::h2470593aa2678e9c [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:659:13 [INFO] [stdout] 16: 0x5589b0181926 - std::sys_common::backtrace::__rust_end_short_backtrace::h560bb50225b0562b [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x5589b0183034 - rust_begin_unwind [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:647:5 [INFO] [stdout] 18: 0x5589affbdd35 - core::panicking::panic_fmt::h29b6f262f6458dc3 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x5589affbe313 - core::result::unwrap_failed::h12bc80647957bcdb [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/result.rs:1649:5 [INFO] [stdout] 20: 0x5589affc46da - core::result::Result::unwrap::h8148750ec5802111 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/result.rs:1073:23 [INFO] [stdout] 21: 0x5589affc46da - rustlings::exercise::test::test_exercise_with_output::h436d2acfcf24207a [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:342:19 [INFO] [stdout] 22: 0x5589affc44e7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hf8bc243f8638d8b2 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:335:35 [INFO] [stdout] 23: 0x5589affbf936 - core::ops::function::FnOnce::call_once::ha434dc8d44b627f6 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5589b000955f - core::ops::function::FnOnce::call_once::h692fe6f34484199f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x5589b000955f - test::__rust_begin_short_backtrace::h48b62e76bd60e2de [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:621:18 [INFO] [stdout] 26: 0x5589b0008381 - test::run_test_in_process::{{closure}}::h1c68597526ef43db [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:644:60 [INFO] [stdout] 27: 0x5589b0008381 - as core::ops::function::FnOnce<()>>::call_once::hcae98092997f976b [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x5589b0008381 - std::panicking::try::do_call::h8d1548c2f5bb535a [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:554:40 [INFO] [stdout] 29: 0x5589b0008381 - std::panicking::try::hbb7a2054f484688e [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:518:19 [INFO] [stdout] 30: 0x5589b0008381 - std::panic::catch_unwind::h696d12d9d80497c2 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x5589b0008381 - test::run_test_in_process::h053367a7217c825b [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:644:27 [INFO] [stdout] 32: 0x5589b0008381 - test::run_test::{{closure}}::hfa524e9fabcba78e [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:567:43 [INFO] [stdout] 33: 0x5589affcf7e6 - test::run_test::{{closure}}::h2c4d0bb741ef7f9f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:595:41 [INFO] [stdout] 34: 0x5589affcf7e6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h0d2c708415550075 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x5589affd47a7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h76e2635840d7293f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 36: 0x5589affd47a7 - as core::ops::function::FnOnce<()>>::call_once::haa640b67a810a214 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x5589affd47a7 - std::panicking::try::do_call::h41892e3bc2807ab5 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:554:40 [INFO] [stdout] 38: 0x5589affd47a7 - std::panicking::try::h861a16d180681c80 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:518:19 [INFO] [stdout] 39: 0x5589affd47a7 - std::panic::catch_unwind::h8195f9064b1509fa [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x5589affd47a7 - std::thread::Builder::spawn_unchecked_::{{closure}}::h73cc419da1217371 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 41: 0x5589affd47a7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h79dc6499ff073b09 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x5589b0187ac5 - as core::ops::function::FnOnce>::call_once::ha718e8cdc51a5182 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 43: 0x5589b0187ac5 - as core::ops::function::FnOnce>::call_once::h86072abc877c5474 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 44: 0x5589b0187ac5 - std::sys::pal::unix::thread::Thread::new::thread_start::hac4056197c365894 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys/pal/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7f78ddeb3ac3 - [INFO] [stdout] 46: 0x7f78ddf44bf4 - __clone [INFO] [stdout] 47: 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 0.08s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "15fc4c888182b8159e87b1970dd36b46c6708340ed0adb1520b398655f64768e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "15fc4c888182b8159e87b1970dd36b46c6708340ed0adb1520b398655f64768e", kill_on_drop: false }` [INFO] [stdout] 15fc4c888182b8159e87b1970dd36b46c6708340ed0adb1520b398655f64768e