[INFO] cloning repository https://github.com/os2edu/rustlings-Natsuki0130 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/os2edu/rustlings-Natsuki0130" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fos2edu%2Frustlings-Natsuki0130", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fos2edu%2Frustlings-Natsuki0130'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b17030d86f16e08c9d44692db5a08147f6a1a892 [INFO] testing os2edu/rustlings-Natsuki0130 against try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fos2edu%2Frustlings-Natsuki0130" "/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/os2edu/rustlings-Natsuki0130 on toolchain ed7f3d77595b4831fdf085f2529aa13b5b51ff7d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/os2edu/rustlings-Natsuki0130 [INFO] finished tweaking git repo https://github.com/os2edu/rustlings-Natsuki0130 [INFO] tweaked toml for git repo https://github.com/os2edu/rustlings-Natsuki0130 written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/os2edu/rustlings-Natsuki0130 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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9c76c809dc2a9f30e2f9387e48ca335d1a461e90cf404b04703efe63627b0e03 [INFO] running `Command { std: "docker" "start" "-a" "9c76c809dc2a9f30e2f9387e48ca335d1a461e90cf404b04703efe63627b0e03", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9c76c809dc2a9f30e2f9387e48ca335d1a461e90cf404b04703efe63627b0e03", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9c76c809dc2a9f30e2f9387e48ca335d1a461e90cf404b04703efe63627b0e03", kill_on_drop: false }` [INFO] [stdout] 9c76c809dc2a9f30e2f9387e48ca335d1a461e90cf404b04703efe63627b0e03 [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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 84d8bf375496c58b79bf5d128059f1e4be520e19435c0f2d8df265d2807e24f2 [INFO] running `Command { std: "docker" "start" "-a" "84d8bf375496c58b79bf5d128059f1e4be520e19435c0f2d8df265d2807e24f2", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.137 [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 autocfg v1.1.0 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling parking_lot_core v0.9.4 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling smallvec v1.10.0 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling itoa v1.0.2 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling pin-project-lite v0.2.9 [INFO] [stderr] Compiling bytes v1.2.1 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling home v0.5.3 [INFO] [stderr] Compiling lock_api v0.4.9 [INFO] [stderr] Compiling tokio v1.21.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling num_cpus v1.13.1 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling mio v0.8.5 [INFO] [stderr] Compiling signal-hook-registry v1.4.0 [INFO] [stderr] Compiling socket2 v0.4.7 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling parking_lot v0.12.1 [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 tokio-macros v1.8.0 [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 v5.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.34s [INFO] running `Command { std: "docker" "inspect" "84d8bf375496c58b79bf5d128059f1e4be520e19435c0f2d8df265d2807e24f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "84d8bf375496c58b79bf5d128059f1e4be520e19435c0f2d8df265d2807e24f2", kill_on_drop: false }` [INFO] [stdout] 84d8bf375496c58b79bf5d128059f1e4be520e19435c0f2d8df265d2807e24f2 [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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5999e1f269d5164e55e7c898fce507ed5a6b3420d17d26dc854bf20b98cf951d [INFO] running `Command { std: "docker" "start" "-a" "5999e1f269d5164e55e7c898fce507ed5a6b3420d17d26dc854bf20b98cf951d", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.14 [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 float-cmp v0.8.0 [INFO] [stderr] Compiling predicates v1.0.8 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v5.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 2.98s [INFO] running `Command { std: "docker" "inspect" "5999e1f269d5164e55e7c898fce507ed5a6b3420d17d26dc854bf20b98cf951d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5999e1f269d5164e55e7c898fce507ed5a6b3420d17d26dc854bf20b98cf951d", kill_on_drop: false }` [INFO] [stdout] 5999e1f269d5164e55e7c898fce507ed5a6b3420d17d26dc854bf20b98cf951d [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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] a1cf422a1f223e39a9361d3acbf39df1af27ba769b17ff4a626e390a63e706cb [INFO] running `Command { std: "docker" "start" "-a" "a1cf422a1f223e39a9361d3acbf39df1af27ba769b17ff4a626e390a63e706cb", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-6e8f68f3cfba7ee7) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test exercise::test::test_pending_state ... ok [INFO] [stdout] test exercise::test::test_finished_exercise ... 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: 0x604f98c5330a - std::backtrace_rs::backtrace::libunwind::trace::h3dab7ffe210583a3 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x604f98c5330a - std::backtrace_rs::backtrace::trace_unsynchronized::h85ec3139dd4f9047 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x604f98c5330a - std::sys::backtrace::_print_fmt::h3447259688950eab [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x604f98c5330a - ::fmt::ha8d24a0f27cc401d [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x604f98c7a5d3 - core::fmt::rt::Argument::fmt::h650b92642f481125 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x604f98c7a5d3 - core::fmt::write::h5becf96591c394eb [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/fmt/mod.rs:1437:21 [INFO] [stdout] 6: 0x604f98c4ff43 - std::io::Write::write_fmt::h61fb565ee25d88c6 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/io/mod.rs:1887:15 [INFO] [stdout] 7: 0x604f98c53152 - std::sys::backtrace::BacktraceLock::print::hae1dc20f39b0ae80 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x604f98c5478e - std::panicking::default_hook::{{closure}}::hb3023fc9edf847a9 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:284:22 [INFO] [stdout] 9: 0x604f98c54597 - std::panicking::default_hook::h271aee2d85880663 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:308:9 [INFO] [stdout] 10: 0x604f98aeeb58 - as core::ops::function::Fn>::call::hbfe4f2a7834d388d [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1984:9 [INFO] [stdout] 11: 0x604f98aeeb58 - test::test_main::{{closure}}::hbb7d4fde4185abc5 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:134:21 [INFO] [stdout] 12: 0x604f98c54fa8 - as core::ops::function::Fn>::call::hd4cbe0a9e8955cde [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1984:9 [INFO] [stdout] 13: 0x604f98c54fa8 - std::panicking::rust_panic_with_hook::he05f4a167c1908ac [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:825:13 [INFO] [stdout] 14: 0x604f98c54c5a - std::panicking::begin_panic_handler::{{closure}}::h79780775730ab9df [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:690:13 [INFO] [stdout] 15: 0x604f98c537d9 - std::sys::backtrace::__rust_end_short_backtrace::h753217146a30d8a2 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 16: 0x604f98c548ed - rust_begin_unwind [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:681:5 [INFO] [stdout] 17: 0x604f98c78fb0 - core::panicking::panic_fmt::h9ad4c3d87a3eb4ad [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/panicking.rs:75:14 [INFO] [stdout] 18: 0x604f98c79426 - core::result::unwrap_failed::h865c91c1a27f7a85 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/result.rs:1699:5 [INFO] [stdout] 19: 0x604f98aaa7ea - core::result::Result::unwrap::h4a305e83d9662e33 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/result.rs:1104:23 [INFO] [stdout] 20: 0x604f98aaa7ea - rustlings::exercise::test::test_clean::h0959ece7a8d7bfee [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:9 [INFO] [stdout] 21: 0x604f98aaa727 - rustlings::exercise::test::test_clean::{{closure}}::h3d282800403b7685 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:268:20 [INFO] [stdout] 22: 0x604f98aa2546 - core::ops::function::FnOnce::call_once::h61ef4a6f642fdf94 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x604f98af379b - core::ops::function::FnOnce::call_once::h651e3187cb632f8b [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x604f98af379b - test::__rust_begin_short_backtrace::hf087c08482082584 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:632:18 [INFO] [stdout] 25: 0x604f98af30a9 - test::run_test_in_process::{{closure}}::h028b11125eb38b18 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:655:60 [INFO] [stdout] 26: 0x604f98af30a9 - as core::ops::function::FnOnce<()>>::call_once::h8a69fc59e5c0ffcd [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x604f98af30a9 - std::panicking::try::do_call::h53d2549af1773521 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:573:40 [INFO] [stdout] 28: 0x604f98af30a9 - std::panicking::try::h327579c208c8ae37 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:536:19 [INFO] [stdout] 29: 0x604f98af30a9 - std::panic::catch_unwind::hae7e4a4da155a27e [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panic.rs:358:14 [INFO] [stdout] 30: 0x604f98af30a9 - test::run_test_in_process::hef0a7b0ac1ee3437 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:655:27 [INFO] [stdout] 31: 0x604f98af30a9 - test::run_test::{{closure}}::h007633ec4ae045b1 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:576:43 [INFO] [stdout] 32: 0x604f98ab5e1a - test::run_test::{{closure}}::hf3a8c9852b545b46 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:606:41 [INFO] [stdout] 33: 0x604f98ab5e1a - std::sys::backtrace::__rust_begin_short_backtrace::ha442d5d7942f6ee9 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 34: 0x604f98ab9886 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc8fd461cdc84b676 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/thread/mod.rs:561:17 [INFO] [stdout] 35: 0x604f98ab9886 - as core::ops::function::FnOnce<()>>::call_once::h5a459cc955f063ed [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x604f98ab9886 - std::panicking::try::do_call::hc249aed3a6c9c972 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:573:40 [INFO] [stdout] 37: 0x604f98ab9886 - std::panicking::try::h649add41232b7ab3 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:536:19 [INFO] [stdout] 38: 0x604f98ab9886 - std::panic::catch_unwind::h2fd522623ccd57b0 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panic.rs:358:14 [INFO] [stdout] 39: 0x604f98ab9886 - std::thread::Builder::spawn_unchecked_::{{closure}}::h685de412d0d20b6b [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/thread/mod.rs:559:30 [INFO] [stdout] 40: 0x604f98ab9886 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hf3391e711cf5434d [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x604f98c590ab - as core::ops::function::FnOnce>::call_once::hc98bb0f9729b604d [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1970:9 [INFO] [stdout] 42: 0x604f98c590ab - as core::ops::function::FnOnce>::call_once::h3b479d8e9f1fef9f [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1970:9 [INFO] [stdout] 43: 0x604f98c590ab - std::sys::pal::unix::thread::Thread::new::thread_start::he3d5da9652362070 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x7b4d402c6ac3 - [INFO] [stdout] 45: 0x7b4d40357a04 - clone [INFO] [stdout] 46: 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/./rmetaVu2mEf\"\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: 0x604f98c5330a - std::backtrace_rs::backtrace::libunwind::trace::h3dab7ffe210583a3 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x604f98c5330a - std::backtrace_rs::backtrace::trace_unsynchronized::h85ec3139dd4f9047 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x604f98c5330a - std::sys::backtrace::_print_fmt::h3447259688950eab [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x604f98c5330a - ::fmt::ha8d24a0f27cc401d [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x604f98c7a5d3 - core::fmt::rt::Argument::fmt::h650b92642f481125 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x604f98c7a5d3 - core::fmt::write::h5becf96591c394eb [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/fmt/mod.rs:1437:21 [INFO] [stdout] 6: 0x604f98c4ff43 - std::io::Write::write_fmt::h61fb565ee25d88c6 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/io/mod.rs:1887:15 [INFO] [stdout] 7: 0x604f98c53152 - std::sys::backtrace::BacktraceLock::print::hae1dc20f39b0ae80 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x604f98c5478e - std::panicking::default_hook::{{closure}}::hb3023fc9edf847a9 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:284:22 [INFO] [stdout] 9: 0x604f98c54597 - std::panicking::default_hook::h271aee2d85880663 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:308:9 [INFO] [stdout] 10: 0x604f98aeeb58 - as core::ops::function::Fn>::call::hbfe4f2a7834d388d [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1984:9 [INFO] [stdout] 11: 0x604f98aeeb58 - test::test_main::{{closure}}::hbb7d4fde4185abc5 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:134:21 [INFO] [stdout] 12: 0x604f98c54fa8 - as core::ops::function::Fn>::call::hd4cbe0a9e8955cde [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1984:9 [INFO] [stdout] 13: 0x604f98c54fa8 - std::panicking::rust_panic_with_hook::he05f4a167c1908ac [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:825:13 [INFO] [stdout] 14: 0x604f98c54c5a - std::panicking::begin_panic_handler::{{closure}}::h79780775730ab9df [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:690:13 [INFO] [stdout] 15: 0x604f98c537d9 - std::sys::backtrace::__rust_end_short_backtrace::h753217146a30d8a2 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 16: 0x604f98c548ed - rust_begin_unwind [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:681:5 [INFO] [stdout] 17: 0x604f98c78fb0 - core::panicking::panic_fmt::h9ad4c3d87a3eb4ad [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/panicking.rs:75:14 [INFO] [stdout] 18: 0x604f98c79426 - core::result::unwrap_failed::h865c91c1a27f7a85 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/result.rs:1699:5 [INFO] [stdout] 19: 0x604f98aab65a - core::result::Result::unwrap::h81011c8e55be23f3 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/result.rs:1104:23 [INFO] [stdout] 20: 0x604f98aab65a - rustlings::exercise::test::test_exercise_with_output::h1df7013e1159dfb3 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:342:19 [INFO] [stdout] 21: 0x604f98aab467 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hdb51ebc100966c4f [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:335:35 [INFO] [stdout] 22: 0x604f98aa25c6 - core::ops::function::FnOnce::call_once::h8290d2b740e6c526 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x604f98af379b - core::ops::function::FnOnce::call_once::h651e3187cb632f8b [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x604f98af379b - test::__rust_begin_short_backtrace::hf087c08482082584 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:632:18 [INFO] [stdout] 25: 0x604f98af30a9 - test::run_test_in_process::{{closure}}::h028b11125eb38b18 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:655:60 [INFO] [stdout] 26: 0x604f98af30a9 - as core::ops::function::FnOnce<()>>::call_once::h8a69fc59e5c0ffcd [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x604f98af30a9 - std::panicking::try::do_call::h53d2549af1773521 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:573:40 [INFO] [stdout] 28: 0x604f98af30a9 - std::panicking::try::h327579c208c8ae37 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:536:19 [INFO] [stdout] 29: 0x604f98af30a9 - std::panic::catch_unwind::hae7e4a4da155a27e [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panic.rs:358:14 [INFO] [stdout] 30: 0x604f98af30a9 - test::run_test_in_process::hef0a7b0ac1ee3437 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:655:27 [INFO] [stdout] 31: 0x604f98af30a9 - test::run_test::{{closure}}::h007633ec4ae045b1 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:576:43 [INFO] [stdout] 32: 0x604f98ab5e1a - test::run_test::{{closure}}::hf3a8c9852b545b46 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:606:41 [INFO] [stdout] 33: 0x604f98ab5e1a - std::sys::backtrace::__rust_begin_short_backtrace::ha442d5d7942f6ee9 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 34: 0x604f98ab9886 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc8fd461cdc84b676 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/thread/mod.rs:561:17 [INFO] [stdout] 35: 0x604f98ab9886 - as core::ops::function::FnOnce<()>>::call_once::h5a459cc955f063ed [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x604f98ab9886 - std::panicking::try::do_call::hc249aed3a6c9c972 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:573:40 [INFO] [stdout] 37: 0x604f98ab9886 - std::panicking::try::h649add41232b7ab3 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:536:19 [INFO] [stdout] 38: 0x604f98ab9886 - std::panic::catch_unwind::h2fd522623ccd57b0 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panic.rs:358:14 [INFO] [stdout] 39: 0x604f98ab9886 - std::thread::Builder::spawn_unchecked_::{{closure}}::h685de412d0d20b6b [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/thread/mod.rs:559:30 [INFO] [stdout] 40: 0x604f98ab9886 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hf3391e711cf5434d [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x604f98c590ab - as core::ops::function::FnOnce>::call_once::hc98bb0f9729b604d [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1970:9 [INFO] [stdout] 42: 0x604f98c590ab - as core::ops::function::FnOnce>::call_once::h3b479d8e9f1fef9f [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1970:9 [INFO] [stdout] 43: 0x604f98c590ab - std::sys::pal::unix::thread::Thread::new::thread_start::he3d5da9652362070 [INFO] [stdout] at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x7b4d402c6ac3 - [INFO] [stdout] 45: 0x7b4d40357a04 - clone [INFO] [stdout] 46: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] exercise::test::test_clean [INFO] [stdout] exercise::test::test_exercise_with_output [INFO] [stdout] [INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "a1cf422a1f223e39a9361d3acbf39df1af27ba769b17ff4a626e390a63e706cb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a1cf422a1f223e39a9361d3acbf39df1af27ba769b17ff4a626e390a63e706cb", kill_on_drop: false }` [INFO] [stdout] a1cf422a1f223e39a9361d3acbf39df1af27ba769b17ff4a626e390a63e706cb