[INFO] cloning repository https://github.com/smithcli/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/smithcli/rustlings-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmithcli%2Frustlings-solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmithcli%2Frustlings-solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d97321fd89441771de0c14920a7d7e23fca4463b [INFO] testing smithcli/rustlings-solutions against master#61223975d46f794466efa832bc7562b9707ecc46+rustflags=-Copt-level=3 for pr-121282 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmithcli%2Frustlings-solutions" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/smithcli/rustlings-solutions on toolchain 61223975d46f794466efa832bc7562b9707ecc46 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/smithcli/rustlings-solutions [INFO] finished tweaking git repo https://github.com/smithcli/rustlings-solutions [INFO] tweaked toml for git repo https://github.com/smithcli/rustlings-solutions written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/smithcli/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" "+61223975d46f794466efa832bc7562b9707ecc46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a82d9a9ea5239ab935ad0c9442820ed41e974d042a1699f34e332118b9eb2d17 [INFO] running `Command { std: "docker" "start" "-a" "a82d9a9ea5239ab935ad0c9442820ed41e974d042a1699f34e332118b9eb2d17", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a82d9a9ea5239ab935ad0c9442820ed41e974d042a1699f34e332118b9eb2d17", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a82d9a9ea5239ab935ad0c9442820ed41e974d042a1699f34e332118b9eb2d17", kill_on_drop: false }` [INFO] [stdout] a82d9a9ea5239ab935ad0c9442820ed41e974d042a1699f34e332118b9eb2d17 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 701bb2b11c6d959272f44cd11f320edaf244340198cb9adeae2baf057ae8ed29 [INFO] running `Command { std: "docker" "start" "-a" "701bb2b11c6d959272f44cd11f320edaf244340198cb9adeae2baf057ae8ed29", 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 cfg-if v1.0.0 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling itoa v1.0.2 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling home v0.5.3 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling quote v1.0.9 [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 v1.5.5 [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 v5.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.22s [INFO] running `Command { std: "docker" "inspect" "701bb2b11c6d959272f44cd11f320edaf244340198cb9adeae2baf057ae8ed29", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "701bb2b11c6d959272f44cd11f320edaf244340198cb9adeae2baf057ae8ed29", kill_on_drop: false }` [INFO] [stdout] 701bb2b11c6d959272f44cd11f320edaf244340198cb9adeae2baf057ae8ed29 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bbdd5d04a7dc1a9054a4edb4a859162bbd5139c349a5cafc234903c863b3552c [INFO] running `Command { std: "docker" "start" "-a" "bbdd5d04a7dc1a9054a4edb4a859162bbd5139c349a5cafc234903c863b3552c", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling treeline v0.1.0 [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 v5.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 6.47s [INFO] running `Command { std: "docker" "inspect" "bbdd5d04a7dc1a9054a4edb4a859162bbd5139c349a5cafc234903c863b3552c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bbdd5d04a7dc1a9054a4edb4a859162bbd5139c349a5cafc234903c863b3552c", kill_on_drop: false }` [INFO] [stdout] bbdd5d04a7dc1a9054a4edb4a859162bbd5139c349a5cafc234903c863b3552c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 0a5f17153ca3fb2ec30273844232b1a241b460cda0fe51c7687bb20f6d1edda5 [INFO] running `Command { std: "docker" "start" "-a" "0a5f17153ca3fb2ec30273844232b1a241b460cda0fe51c7687bb20f6d1edda5", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-304e10ce3b5cf5b8) [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] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_clean stdout ---- [INFO] [stdout] thread 'exercise::test::test_clean' panicked at src/exercise.rs:273:36: [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: 0x55db02f11df6 - std::backtrace_rs::backtrace::libunwind::trace::h68e08e31a5edd928 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 [INFO] [stdout] 1: 0x55db02f11df6 - std::backtrace_rs::backtrace::trace_unsynchronized::hc8e4d3186f828cab [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55db02f11df6 - std::sys_common::backtrace::_print_fmt::hdcdca1c0665ccefc [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x55db02f11df6 - ::fmt::h752651e67cc277a4 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x55db02f398ec - core::fmt::rt::Argument::fmt::h4e7c3e22f7386287 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/fmt/rt.rs:142:9 [INFO] [stdout] 5: 0x55db02f398ec - core::fmt::write::hd44b1d45ba162e21 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/fmt/mod.rs:1120:17 [INFO] [stdout] 6: 0x55db02f0f69f - std::io::Write::write_fmt::hdb67a49a0754f939 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/io/mod.rs:1846:15 [INFO] [stdout] 7: 0x55db02f11ba4 - std::sys_common::backtrace::_print::hbca331de1381491f [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x55db02f11ba4 - std::sys_common::backtrace::print::hade58077d78c625d [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x55db02f1389b - std::panicking::default_hook::{{closure}}::hc9f80a2cdc6be4c4 [INFO] [stdout] 10: 0x55db02f1356d - std::panicking::default_hook::h1fc68886dc215416 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:289:9 [INFO] [stdout] 11: 0x55db02e73b17 - as core::ops::function::Fn>::call::ha16821620acc0367 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 12: 0x55db02e73b17 - test::test_main::{{closure}}::h1a3ed7cd910c2945 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:137:21 [INFO] [stdout] 13: 0x55db02f13ed0 - as core::ops::function::Fn>::call::he260753ff79c0e70 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 14: 0x55db02f13ed0 - std::panicking::rust_panic_with_hook::heff73da0ddd67492 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:786:13 [INFO] [stdout] 15: 0x55db02f13c12 - std::panicking::begin_panic_handler::{{closure}}::h141137f9c7de1e02 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:660:13 [INFO] [stdout] 16: 0x55db02f122d6 - std::sys_common::backtrace::__rust_end_short_backtrace::hbde4e66d30db627d [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x55db02f13944 - rust_begin_unwind [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:648:5 [INFO] [stdout] 18: 0x55db02e39115 - core::panicking::panic_fmt::h92fcc83e4972ca9b [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x55db02e39603 - core::result::unwrap_failed::h788f2905cd2dc947 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/result.rs:1653:5 [INFO] [stdout] 20: 0x55db02e39fe8 - core::result::Result::unwrap::h2cb4924a8166c0c0 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/result.rs:1077:23 [INFO] [stdout] 21: 0x55db02e39fe8 - rustlings::exercise::test::test_clean::hbd8ea2741f936151 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:273:9 [INFO] [stdout] 22: 0x55db02e3ef09 - rustlings::exercise::test::test_clean::{{closure}}::hd9db8e0d716a8412 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:272:20 [INFO] [stdout] 23: 0x55db02e3ef09 - core::ops::function::FnOnce::call_once::h4ec6ddf084afd452 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x55db02e7927f - core::ops::function::FnOnce::call_once::hb5d425830acba2e8 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x55db02e7927f - test::__rust_begin_short_backtrace::h8054e86d0f5ccc86 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:620:18 [INFO] [stdout] 26: 0x55db02e77e90 - test::run_test_in_process::{{closure}}::h85d13cb166c10721 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:643:60 [INFO] [stdout] 27: 0x55db02e77e90 - as core::ops::function::FnOnce<()>>::call_once::hc3dc86b8d5205a04 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x55db02e77e90 - std::panicking::try::do_call::hc17666b06748adad [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:555:40 [INFO] [stdout] 29: 0x55db02e77e90 - std::panicking::try::h1e9fba0c97684d1d [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:519:19 [INFO] [stdout] 30: 0x55db02e77e90 - std::panic::catch_unwind::h8328c2da9899627c [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x55db02e77e90 - test::run_test_in_process::hf19a99f254958c9c [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:643:27 [INFO] [stdout] 32: 0x55db02e77e90 - test::run_test::{{closure}}::hba6ab6b94e515411 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:566:43 [INFO] [stdout] 33: 0x55db02e401d3 - test::run_test::{{closure}}::h6ac7c2253cb9cc0f [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:594:41 [INFO] [stdout] 34: 0x55db02e401d3 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb4fbc53b7e758a6f [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x55db02e44eff - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha24970823708ac98 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/thread/mod.rs:528:17 [INFO] [stdout] 36: 0x55db02e44eff - as core::ops::function::FnOnce<()>>::call_once::h16db0733eff2a03c [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x55db02e44eff - std::panicking::try::do_call::hc2890dbc9a490eee [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:555:40 [INFO] [stdout] 38: 0x55db02e44eff - std::panicking::try::ha67ad75b01f98422 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:519:19 [INFO] [stdout] 39: 0x55db02e44eff - std::panic::catch_unwind::h26725df9ddb3fcd2 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x55db02e44eff - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0e59407b0ff3ed8 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/thread/mod.rs:527:30 [INFO] [stdout] 41: 0x55db02e44eff - core::ops::function::FnOnce::call_once{{vtable.shim}}::hd4eb105f82d3bb8e [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x55db02f18305 - as core::ops::function::FnOnce>::call_once::h28564f61ef15890d [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 43: 0x55db02f18305 - as core::ops::function::FnOnce>::call_once::h03728738d990d027 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 44: 0x55db02f18305 - std::sys::pal::unix::thread::Thread::new::thread_start::heb455c9485795637 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys/pal/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7fa29a975ac3 - [INFO] [stdout] 46: 0x7fa29aa06bf4 - __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:346:38: [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/./rmetaw3m585\"\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: 0x55db02f11df6 - std::backtrace_rs::backtrace::libunwind::trace::h68e08e31a5edd928 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 [INFO] [stdout] 1: 0x55db02f11df6 - std::backtrace_rs::backtrace::trace_unsynchronized::hc8e4d3186f828cab [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55db02f11df6 - std::sys_common::backtrace::_print_fmt::hdcdca1c0665ccefc [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x55db02f11df6 - ::fmt::h752651e67cc277a4 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x55db02f398ec - core::fmt::rt::Argument::fmt::h4e7c3e22f7386287 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/fmt/rt.rs:142:9 [INFO] [stdout] 5: 0x55db02f398ec - core::fmt::write::hd44b1d45ba162e21 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/fmt/mod.rs:1120:17 [INFO] [stdout] 6: 0x55db02f0f69f - std::io::Write::write_fmt::hdb67a49a0754f939 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/io/mod.rs:1846:15 [INFO] [stdout] 7: 0x55db02f11ba4 - std::sys_common::backtrace::_print::hbca331de1381491f [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x55db02f11ba4 - std::sys_common::backtrace::print::hade58077d78c625d [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x55db02f1389b - std::panicking::default_hook::{{closure}}::hc9f80a2cdc6be4c4 [INFO] [stdout] 10: 0x55db02f1356d - std::panicking::default_hook::h1fc68886dc215416 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:289:9 [INFO] [stdout] 11: 0x55db02e73b17 - as core::ops::function::Fn>::call::ha16821620acc0367 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 12: 0x55db02e73b17 - test::test_main::{{closure}}::h1a3ed7cd910c2945 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:137:21 [INFO] [stdout] 13: 0x55db02f13ed0 - as core::ops::function::Fn>::call::he260753ff79c0e70 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 14: 0x55db02f13ed0 - std::panicking::rust_panic_with_hook::heff73da0ddd67492 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:786:13 [INFO] [stdout] 15: 0x55db02f13c12 - std::panicking::begin_panic_handler::{{closure}}::h141137f9c7de1e02 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:660:13 [INFO] [stdout] 16: 0x55db02f122d6 - std::sys_common::backtrace::__rust_end_short_backtrace::hbde4e66d30db627d [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x55db02f13944 - rust_begin_unwind [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:648:5 [INFO] [stdout] 18: 0x55db02e39115 - core::panicking::panic_fmt::h92fcc83e4972ca9b [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x55db02e39603 - core::result::unwrap_failed::h788f2905cd2dc947 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/result.rs:1653:5 [INFO] [stdout] 20: 0x55db02e3b05b - core::result::Result::unwrap::h59ec1c808f075278 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/result.rs:1077:23 [INFO] [stdout] 21: 0x55db02e3b05b - rustlings::exercise::test::test_exercise_with_output::h11b8adeaab7630af [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:346:19 [INFO] [stdout] 22: 0x55db02e3eee9 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h247d66468bd63342 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:339:35 [INFO] [stdout] 23: 0x55db02e3eee9 - core::ops::function::FnOnce::call_once::h0e402f4cea542ed1 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x55db02e7927f - core::ops::function::FnOnce::call_once::hb5d425830acba2e8 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x55db02e7927f - test::__rust_begin_short_backtrace::h8054e86d0f5ccc86 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:620:18 [INFO] [stdout] 26: 0x55db02e77e90 - test::run_test_in_process::{{closure}}::h85d13cb166c10721 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:643:60 [INFO] [stdout] 27: 0x55db02e77e90 - as core::ops::function::FnOnce<()>>::call_once::hc3dc86b8d5205a04 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x55db02e77e90 - std::panicking::try::do_call::hc17666b06748adad [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:555:40 [INFO] [stdout] 29: 0x55db02e77e90 - std::panicking::try::h1e9fba0c97684d1d [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:519:19 [INFO] [stdout] 30: 0x55db02e77e90 - std::panic::catch_unwind::h8328c2da9899627c [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x55db02e77e90 - test::run_test_in_process::hf19a99f254958c9c [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:643:27 [INFO] [stdout] 32: 0x55db02e77e90 - test::run_test::{{closure}}::hba6ab6b94e515411 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:566:43 [INFO] [stdout] 33: 0x55db02e401d3 - test::run_test::{{closure}}::h6ac7c2253cb9cc0f [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/test/src/lib.rs:594:41 [INFO] [stdout] 34: 0x55db02e401d3 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb4fbc53b7e758a6f [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x55db02e44eff - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha24970823708ac98 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/thread/mod.rs:528:17 [INFO] [stdout] 36: 0x55db02e44eff - as core::ops::function::FnOnce<()>>::call_once::h16db0733eff2a03c [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x55db02e44eff - std::panicking::try::do_call::hc2890dbc9a490eee [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:555:40 [INFO] [stdout] 38: 0x55db02e44eff - std::panicking::try::ha67ad75b01f98422 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panicking.rs:519:19 [INFO] [stdout] 39: 0x55db02e44eff - std::panic::catch_unwind::h26725df9ddb3fcd2 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x55db02e44eff - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0e59407b0ff3ed8 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/thread/mod.rs:527:30 [INFO] [stdout] 41: 0x55db02e44eff - core::ops::function::FnOnce::call_once{{vtable.shim}}::hd4eb105f82d3bb8e [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x55db02f18305 - as core::ops::function::FnOnce>::call_once::h28564f61ef15890d [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 43: 0x55db02f18305 - as core::ops::function::FnOnce>::call_once::h03728738d990d027 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 44: 0x55db02f18305 - std::sys::pal::unix::thread::Thread::new::thread_start::heb455c9485795637 [INFO] [stdout] at /rustc/61223975d46f794466efa832bc7562b9707ecc46/library/std/src/sys/pal/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7fa29a975ac3 - [INFO] [stdout] 46: 0x7fa29aa06bf4 - __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 0.09s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "0a5f17153ca3fb2ec30273844232b1a241b460cda0fe51c7687bb20f6d1edda5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a5f17153ca3fb2ec30273844232b1a241b460cda0fe51c7687bb20f6d1edda5", kill_on_drop: false }` [INFO] [stdout] 0a5f17153ca3fb2ec30273844232b1a241b460cda0fe51c7687bb20f6d1edda5