[INFO] cloning repository https://github.com/aramidetosin/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/aramidetosin/rustlings_solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faramidetosin%2Frustlings_solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faramidetosin%2Frustlings_solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 27c16a2a1e7460f2566189cea23514c8a0660d98 [INFO] testing aramidetosin/rustlings_solutions against beta-2024-12-08 for beta-1.84.0-4 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faramidetosin%2Frustlings_solutions" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/aramidetosin/rustlings_solutions on toolchain beta-2024-12-08 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/aramidetosin/rustlings_solutions [INFO] finished tweaking git repo https://github.com/aramidetosin/rustlings_solutions [INFO] tweaked toml for git repo https://github.com/aramidetosin/rustlings_solutions written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/aramidetosin/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" "+beta-2024-12-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9307364692c5058102525a0f7427b9dc300406c5e8e24542598a3966908fd2a7 [INFO] running `Command { std: "docker" "start" "-a" "9307364692c5058102525a0f7427b9dc300406c5e8e24542598a3966908fd2a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9307364692c5058102525a0f7427b9dc300406c5e8e24542598a3966908fd2a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9307364692c5058102525a0f7427b9dc300406c5e8e24542598a3966908fd2a7", kill_on_drop: false }` [INFO] [stdout] 9307364692c5058102525a0f7427b9dc300406c5e8e24542598a3966908fd2a7 [INFO] testing aramidetosin/rustlings_solutions against beta-2024-12-08 for beta-1.84.0-4 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faramidetosin%2Frustlings_solutions" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/aramidetosin/rustlings_solutions on toolchain beta-2024-12-08 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/aramidetosin/rustlings_solutions [INFO] finished tweaking git repo https://github.com/aramidetosin/rustlings_solutions [INFO] tweaked toml for git repo https://github.com/aramidetosin/rustlings_solutions written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/aramidetosin/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" "+beta-2024-12-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] dead43b0d8af13587184c18a8943cac216b7af1682bb6c053baca1bb680c81f1 [INFO] running `Command { std: "docker" "start" "-a" "dead43b0d8af13587184c18a8943cac216b7af1682bb6c053baca1bb680c81f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dead43b0d8af13587184c18a8943cac216b7af1682bb6c053baca1bb680c81f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dead43b0d8af13587184c18a8943cac216b7af1682bb6c053baca1bb680c81f1", kill_on_drop: false }` [INFO] [stdout] dead43b0d8af13587184c18a8943cac216b7af1682bb6c053baca1bb680c81f1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7a014b5e5283110d44e8752287a7764ef17a2e251274e2d2887a4fd9f1372f28 [INFO] running `Command { std: "docker" "start" "-a" "7a014b5e5283110d44e8752287a7764ef17a2e251274e2d2887a4fd9f1372f28", 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 serde_derive v1.0.129 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling number_prefix v0.4.0 [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 quote v1.0.9 [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 regex v1.5.5 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [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 v5.4.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.45s [INFO] running `Command { std: "docker" "inspect" "7a014b5e5283110d44e8752287a7764ef17a2e251274e2d2887a4fd9f1372f28", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a014b5e5283110d44e8752287a7764ef17a2e251274e2d2887a4fd9f1372f28", kill_on_drop: false }` [INFO] [stdout] 7a014b5e5283110d44e8752287a7764ef17a2e251274e2d2887a4fd9f1372f28 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7499cfe8b56ef6b854a2bdb44c447e1f257888d8ae7405ac23d127a23a1a153d [INFO] running `Command { std: "docker" "start" "-a" "7499cfe8b56ef6b854a2bdb44c447e1f257888d8ae7405ac23d127a23a1a153d", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling difference v2.0.0 [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 v5.4.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 5.43s [INFO] running `Command { std: "docker" "inspect" "7499cfe8b56ef6b854a2bdb44c447e1f257888d8ae7405ac23d127a23a1a153d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7499cfe8b56ef6b854a2bdb44c447e1f257888d8ae7405ac23d127a23a1a153d", kill_on_drop: false }` [INFO] [stdout] 7499cfe8b56ef6b854a2bdb44c447e1f257888d8ae7405ac23d127a23a1a153d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-12-08" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] cb9f234f588d3b20ffc716e930eddd476029ab8681137c2c2c59f5ba6c8ee098 [INFO] running `Command { std: "docker" "start" "-a" "cb9f234f588d3b20ffc716e930eddd476029ab8681137c2c2c59f5ba6c8ee098", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-ef615938fc95bb69) [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: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: 0x58be9e91550a - std::backtrace_rs::backtrace::libunwind::trace::h8810477743020387 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x58be9e91550a - std::backtrace_rs::backtrace::trace_unsynchronized::h3aa55355dd6c54a6 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x58be9e91550a - std::sys::backtrace::_print_fmt::h8588b0f62410823f [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x58be9e91550a - ::fmt::h98c26ac25ffe89bb [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x58be9e93b223 - core::fmt::rt::Argument::fmt::hf95377f4aebd453b [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x58be9e93b223 - core::fmt::write::h0dd5f6e2238c7982 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/mod.rs:1189:21 [INFO] [stdout] 6: 0x58be9e912693 - std::io::Write::write_fmt::h03bb0ca26e6faf8c [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/io/mod.rs:1884:15 [INFO] [stdout] 7: 0x58be9e915352 - std::sys::backtrace::BacktraceLock::print::h5c19c1c038ee186d [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x58be9e91698d - std::panicking::default_hook::{{closure}}::h77172f079a1fcb13 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:268:22 [INFO] [stdout] 9: 0x58be9e916797 - std::panicking::default_hook::he5f8e3b203ccddba [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:292:9 [INFO] [stdout] 10: 0x58be9e7a6e97 - as core::ops::function::Fn>::call::h7a3c7b4a1ae77f2f [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9 [INFO] [stdout] 11: 0x58be9e7a6e97 - test::test_main::{{closure}}::hf0d3b69ae9b353d1 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:134:21 [INFO] [stdout] 12: 0x58be9e917038 - as core::ops::function::Fn>::call::h6332e82e7b189abd [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9 [INFO] [stdout] 13: 0x58be9e917038 - std::panicking::rust_panic_with_hook::h53863d4e9018df39 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:809:13 [INFO] [stdout] 14: 0x58be9e916dfa - std::panicking::begin_panic_handler::{{closure}}::h67280e6fa0757873 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:674:13 [INFO] [stdout] 15: 0x58be9e9159e9 - std::sys::backtrace::__rust_end_short_backtrace::h1dac3f54d6fbbeb2 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x58be9e916a8c - rust_begin_unwind [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:665:5 [INFO] [stdout] 17: 0x58be9e75c1d0 - core::panicking::panic_fmt::h6792bd1b2bf01041 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panicking.rs:76:14 [INFO] [stdout] 18: 0x58be9e75c656 - core::result::unwrap_failed::h05e0602ed34287c5 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1699:5 [INFO] [stdout] 19: 0x58be9e762d8a - core::result::Result::unwrap::h005fc49dfddd0906 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1104:23 [INFO] [stdout] 20: 0x58be9e762d8a - rustlings::exercise::test::test_clean::h8c65411b61682b76 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:273:9 [INFO] [stdout] 21: 0x58be9e762cc7 - rustlings::exercise::test::test_clean::{{closure}}::h9e7999b0fc374340 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:272:20 [INFO] [stdout] 22: 0x58be9e75d696 - core::ops::function::FnOnce::call_once::hf5cc4b99a3c13b65 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x58be9e7ab9bb - core::ops::function::FnOnce::call_once::h871bf86719ec9aa4 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x58be9e7ab9bb - test::__rust_begin_short_backtrace::h2167df1e2b7d76fd [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:632:18 [INFO] [stdout] 25: 0x58be9e7ab3a8 - test::run_test_in_process::{{closure}}::h15d92f75a3adfb79 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:60 [INFO] [stdout] 26: 0x58be9e7ab3a8 - as core::ops::function::FnOnce<()>>::call_once::hb6c8955835a8dbbb [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x58be9e7ab3a8 - std::panicking::try::do_call::hc79d0fc888a0bd30 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40 [INFO] [stdout] 28: 0x58be9e7ab3a8 - std::panicking::try::hb8a7878e3a8589d6 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19 [INFO] [stdout] 29: 0x58be9e7ab3a8 - std::panic::catch_unwind::hb8e4600ff0ff5cfa [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14 [INFO] [stdout] 30: 0x58be9e7ab3a8 - test::run_test_in_process::hc2900b0b18688dd6 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:27 [INFO] [stdout] 31: 0x58be9e7ab3a8 - test::run_test::{{closure}}::hac2a9cb07be3d48d [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:576:43 [INFO] [stdout] 32: 0x58be9e76ee4a - test::run_test::{{closure}}::h4a5b729e66a38cd8 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:606:41 [INFO] [stdout] 33: 0x58be9e76ee4a - std::sys::backtrace::__rust_begin_short_backtrace::h0496fb742492f573 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x58be9e7727c4 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hbb6d257c550a54bd [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:561:17 [INFO] [stdout] 35: 0x58be9e7727c4 - as core::ops::function::FnOnce<()>>::call_once::h46696fe4a6832328 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x58be9e7727c4 - std::panicking::try::do_call::h2625a51b667bfb64 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40 [INFO] [stdout] 37: 0x58be9e7727c4 - std::panicking::try::hb956a59a1973aa4c [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19 [INFO] [stdout] 38: 0x58be9e7727c4 - std::panic::catch_unwind::h64f3b9d1067ef6a0 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14 [INFO] [stdout] 39: 0x58be9e7727c4 - std::thread::Builder::spawn_unchecked_::{{closure}}::h42b2841295b6c0b2 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:559:30 [INFO] [stdout] 40: 0x58be9e7727c4 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6127de71b8124639 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x58be9e91b15b - as core::ops::function::FnOnce>::call_once::h42f0ba71002a1b2c [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9 [INFO] [stdout] 42: 0x58be9e91b15b - as core::ops::function::FnOnce>::call_once::had9e47d7a3dcecb8 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9 [INFO] [stdout] 43: 0x58be9e91b15b - std::sys::pal::unix::thread::Thread::new::thread_start::h48cf765408f6f5f2 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x719f8b7feac3 - [INFO] [stdout] 45: 0x719f8b88fa04 - clone [INFO] [stdout] 46: 0x0 - [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [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/./rmetaG6ABoF\"\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: 0x58be9e91550a - std::backtrace_rs::backtrace::libunwind::trace::h8810477743020387 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x58be9e91550a - std::backtrace_rs::backtrace::trace_unsynchronized::h3aa55355dd6c54a6 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x58be9e91550a - std::sys::backtrace::_print_fmt::h8588b0f62410823f [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x58be9e91550a - ::fmt::h98c26ac25ffe89bb [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x58be9e93b223 - core::fmt::rt::Argument::fmt::hf95377f4aebd453b [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x58be9e93b223 - core::fmt::write::h0dd5f6e2238c7982 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/fmt/mod.rs:1189:21 [INFO] [stdout] 6: 0x58be9e912693 - std::io::Write::write_fmt::h03bb0ca26e6faf8c [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/io/mod.rs:1884:15 [INFO] [stdout] 7: 0x58be9e915352 - std::sys::backtrace::BacktraceLock::print::h5c19c1c038ee186d [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x58be9e91698d - std::panicking::default_hook::{{closure}}::h77172f079a1fcb13 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:268:22 [INFO] [stdout] 9: 0x58be9e916797 - std::panicking::default_hook::he5f8e3b203ccddba [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:292:9 [INFO] [stdout] 10: 0x58be9e7a6e97 - as core::ops::function::Fn>::call::h7a3c7b4a1ae77f2f [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9 [INFO] [stdout] 11: 0x58be9e7a6e97 - test::test_main::{{closure}}::hf0d3b69ae9b353d1 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:134:21 [INFO] [stdout] 12: 0x58be9e917038 - as core::ops::function::Fn>::call::h6332e82e7b189abd [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1986:9 [INFO] [stdout] 13: 0x58be9e917038 - std::panicking::rust_panic_with_hook::h53863d4e9018df39 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:809:13 [INFO] [stdout] 14: 0x58be9e916dfa - std::panicking::begin_panic_handler::{{closure}}::h67280e6fa0757873 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:674:13 [INFO] [stdout] 15: 0x58be9e9159e9 - std::sys::backtrace::__rust_end_short_backtrace::h1dac3f54d6fbbeb2 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x58be9e916a8c - rust_begin_unwind [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:665:5 [INFO] [stdout] 17: 0x58be9e75c1d0 - core::panicking::panic_fmt::h6792bd1b2bf01041 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panicking.rs:76:14 [INFO] [stdout] 18: 0x58be9e75c656 - core::result::unwrap_failed::h05e0602ed34287c5 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1699:5 [INFO] [stdout] 19: 0x58be9e763bea - core::result::Result::unwrap::hf3547936a70fc9aa [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/result.rs:1104:23 [INFO] [stdout] 20: 0x58be9e763bea - rustlings::exercise::test::test_exercise_with_output::ha8a1f09f8576d592 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:346:19 [INFO] [stdout] 21: 0x58be9e7639f7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h132d5be178df0594 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:339:35 [INFO] [stdout] 22: 0x58be9e75d5f6 - core::ops::function::FnOnce::call_once::h557e1b8f5c2590e2 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x58be9e7ab9bb - core::ops::function::FnOnce::call_once::h871bf86719ec9aa4 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x58be9e7ab9bb - test::__rust_begin_short_backtrace::h2167df1e2b7d76fd [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:632:18 [INFO] [stdout] 25: 0x58be9e7ab3a8 - test::run_test_in_process::{{closure}}::h15d92f75a3adfb79 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:60 [INFO] [stdout] 26: 0x58be9e7ab3a8 - as core::ops::function::FnOnce<()>>::call_once::hb6c8955835a8dbbb [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x58be9e7ab3a8 - std::panicking::try::do_call::hc79d0fc888a0bd30 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40 [INFO] [stdout] 28: 0x58be9e7ab3a8 - std::panicking::try::hb8a7878e3a8589d6 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19 [INFO] [stdout] 29: 0x58be9e7ab3a8 - std::panic::catch_unwind::hb8e4600ff0ff5cfa [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14 [INFO] [stdout] 30: 0x58be9e7ab3a8 - test::run_test_in_process::hc2900b0b18688dd6 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:655:27 [INFO] [stdout] 31: 0x58be9e7ab3a8 - test::run_test::{{closure}}::hac2a9cb07be3d48d [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:576:43 [INFO] [stdout] 32: 0x58be9e76ee4a - test::run_test::{{closure}}::h4a5b729e66a38cd8 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/test/src/lib.rs:606:41 [INFO] [stdout] 33: 0x58be9e76ee4a - std::sys::backtrace::__rust_begin_short_backtrace::h0496fb742492f573 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x58be9e7727c4 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hbb6d257c550a54bd [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:561:17 [INFO] [stdout] 35: 0x58be9e7727c4 - as core::ops::function::FnOnce<()>>::call_once::h46696fe4a6832328 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x58be9e7727c4 - std::panicking::try::do_call::h2625a51b667bfb64 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:557:40 [INFO] [stdout] 37: 0x58be9e7727c4 - std::panicking::try::hb956a59a1973aa4c [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panicking.rs:520:19 [INFO] [stdout] 38: 0x58be9e7727c4 - std::panic::catch_unwind::h64f3b9d1067ef6a0 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/panic.rs:358:14 [INFO] [stdout] 39: 0x58be9e7727c4 - std::thread::Builder::spawn_unchecked_::{{closure}}::h42b2841295b6c0b2 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/thread/mod.rs:559:30 [INFO] [stdout] 40: 0x58be9e7727c4 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6127de71b8124639 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x58be9e91b15b - as core::ops::function::FnOnce>::call_once::h42f0ba71002a1b2c [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9 [INFO] [stdout] 42: 0x58be9e91b15b - as core::ops::function::FnOnce>::call_once::had9e47d7a3dcecb8 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/alloc/src/boxed.rs:1972:9 [INFO] [stdout] 43: 0x58be9e91b15b - std::sys::pal::unix::thread::Thread::new::thread_start::h48cf765408f6f5f2 [INFO] [stdout] at /rustc/202008a1b8de96d2e5b6bc02d379db03a877d34d/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x719f8b7feac3 - [INFO] [stdout] 45: 0x719f8b88fa04 - 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 0.16s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "cb9f234f588d3b20ffc716e930eddd476029ab8681137c2c2c59f5ba6c8ee098", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cb9f234f588d3b20ffc716e930eddd476029ab8681137c2c2c59f5ba6c8ee098", kill_on_drop: false }` [INFO] [stdout] cb9f234f588d3b20ffc716e930eddd476029ab8681137c2c2c59f5ba6c8ee098