[INFO] cloning repository https://github.com/cicvedu/rustlings-semester-2-libchaos [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cicvedu/rustlings-semester-2-libchaos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frustlings-semester-2-libchaos", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frustlings-semester-2-libchaos'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ff9fd6ff21668e90a883c2d0096faf5a9d4713d5 [INFO] testing cicvedu/rustlings-semester-2-libchaos against try#c066bf6804adc55193b71afdff6a56922f4a8689+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_in_2025-retry-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frustlings-semester-2-libchaos" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/cicvedu/rustlings-semester-2-libchaos [INFO] finished tweaking git repo https://github.com/cicvedu/rustlings-semester-2-libchaos [INFO] tweaked toml for git repo https://github.com/cicvedu/rustlings-semester-2-libchaos written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/cicvedu/rustlings-semester-2-libchaos on toolchain c066bf6804adc55193b71afdff6a56922f4a8689 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c066bf6804adc55193b71afdff6a56922f4a8689" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/cicvedu/rustlings-semester-2-libchaos 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" "+c066bf6804adc55193b71afdff6a56922f4a8689" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+c066bf6804adc55193b71afdff6a56922f4a8689" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8aa017a4ef4325d12cfefe6210593155bc0138b20571aa7cf2d254d6ddb2d369 [INFO] running `Command { std: "docker" "start" "-a" "8aa017a4ef4325d12cfefe6210593155bc0138b20571aa7cf2d254d6ddb2d369", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8aa017a4ef4325d12cfefe6210593155bc0138b20571aa7cf2d254d6ddb2d369", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8aa017a4ef4325d12cfefe6210593155bc0138b20571aa7cf2d254d6ddb2d369", kill_on_drop: false }` [INFO] [stdout] 8aa017a4ef4325d12cfefe6210593155bc0138b20571aa7cf2d254d6ddb2d369 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+c066bf6804adc55193b71afdff6a56922f4a8689" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 3fb2767adb272478118ce478def4b69cb2a080572a9877eff2de86d438102e61 [INFO] running `Command { std: "docker" "start" "-a" "3fb2767adb272478118ce478def4b69cb2a080572a9877eff2de86d438102e61", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling proc-macro2 v1.0.64 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling unicode-ident v1.0.10 [INFO] [stderr] Compiling quote v1.0.29 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Compiling serde v1.0.171 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling smallvec v1.11.0 [INFO] [stderr] Compiling log v0.4.19 [INFO] [stderr] Compiling regex-syntax v0.7.4 [INFO] [stderr] Compiling scopeguard v1.2.0 [INFO] [stderr] Compiling serde_json v1.0.102 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling unicode-width v0.1.10 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling argh_shared v0.1.10 [INFO] [stderr] Compiling walkdir v2.3.3 [INFO] [stderr] Compiling itoa v1.0.8 [INFO] [stderr] Compiling pin-project-lite v0.2.10 [INFO] [stderr] Compiling bytes v1.4.0 [INFO] [stderr] Compiling ryu v1.0.14 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stderr] Compiling home v0.5.5 [INFO] [stderr] Compiling slab v0.4.8 [INFO] [stderr] Compiling lock_api v0.4.10 [INFO] [stderr] Compiling tokio v1.29.1 [INFO] [stderr] Compiling aho-corasick v1.0.2 [INFO] [stderr] Compiling syn v2.0.25 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.39 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling signal-hook-registry v1.4.1 [INFO] [stderr] Compiling num_cpus v1.16.0 [INFO] [stderr] Compiling mio v0.8.8 [INFO] [stderr] Compiling filetime v0.2.21 [INFO] [stderr] Compiling console v0.15.7 [INFO] [stderr] Compiling socket2 v0.4.9 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling parking_lot v0.12.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling regex-automata v0.3.3 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling argh_derive v0.1.10 [INFO] [stderr] Compiling argh v0.1.10 [INFO] [stderr] Compiling regex v1.9.1 [INFO] [stderr] Compiling serde_derive v1.0.171 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling toml v0.5.11 [INFO] [stderr] Compiling rustlings v5.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:113:20 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 113 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.26s [INFO] running `Command { std: "docker" "inspect" "3fb2767adb272478118ce478def4b69cb2a080572a9877eff2de86d438102e61", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3fb2767adb272478118ce478def4b69cb2a080572a9877eff2de86d438102e61", kill_on_drop: false }` [INFO] [stdout] 3fb2767adb272478118ce478def4b69cb2a080572a9877eff2de86d438102e61 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+c066bf6804adc55193b71afdff6a56922f4a8689" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 8bfcc3da435890fe0001d413b8427957c61e97d60de62f0c4f22a874567ea0f9 [INFO] running `Command { std: "docker" "start" "-a" "8bfcc3da435890fe0001d413b8427957c61e97d60de62f0c4f22a874567ea0f9", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling predicates-core v1.0.6 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling termtree v0.4.1 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:113:20 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 113 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling predicates-tree v1.0.9 [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 v5.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:113:20 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 113 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 2.54s [INFO] running `Command { std: "docker" "inspect" "8bfcc3da435890fe0001d413b8427957c61e97d60de62f0c4f22a874567ea0f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8bfcc3da435890fe0001d413b8427957c61e97d60de62f0c4f22a874567ea0f9", kill_on_drop: false }` [INFO] [stdout] 8bfcc3da435890fe0001d413b8427957c61e97d60de62f0c4f22a874567ea0f9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+c066bf6804adc55193b71afdff6a56922f4a8689" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] a537715c6eebc44eb902a18cd55699df7bc2e0c62a6a055e5e3829d5248f296d [INFO] running `Command { std: "docker" "start" "-a" "a537715c6eebc44eb902a18cd55699df7bc2e0c62a6a055e5e3829d5248f296d", kill_on_drop: false }` [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/exercise.rs:113:20 [INFO] [stderr] | [INFO] [stderr] 113 | pub fn compile(&self) -> Result { [INFO] [stderr] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 113 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `rustlings` (bin "rustlings") generated 1 warning (run `cargo fix --bin "rustlings"` to apply 1 suggestion) [INFO] [stderr] warning: `rustlings` (bin "rustlings" test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/rustlings-1c7f930f028989b6) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test exercise::test::test_finished_exercise ... ok [INFO] [stdout] test exercise::test::test_pending_state ... ok [INFO] [stdout] test exercise::test::test_clean ... FAILED [INFO] [stdout] test exercise::test::test_exercise_with_output ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_clean stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'exercise::test::test_clean' panicked at src/exercise.rs:303:36: [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: 0x73721c0fefa2 - std::backtrace_rs::backtrace::libunwind::trace::hc0462517b060cf4b [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x73721c0fefa2 - std::backtrace_rs::backtrace::trace_unsynchronized::he3231a4df0b43f00 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x73721c0fefa2 - std::sys::backtrace::_print_fmt::h7f744866c41d3a31 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x73721c0fefa2 - ::fmt::h1ef81e33f64f634e [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x73721c13ae73 - core::fmt::rt::Argument::fmt::h81a194710c4034a0 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x73721c13ae73 - core::fmt::write::h1ab4e554d51bab56 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/fmt/mod.rs:1460:25 [INFO] [stdout] 6: 0x73721c0fc3f3 - std::io::default_write_fmt::h1d8065796ed487b7 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x73721c0fc3f3 - std::io::Write::write_fmt::hb706b37400bb89a4 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x73721c0fedf2 - std::sys::backtrace::BacktraceLock::print::h727d5db2588a6e85 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x73721c10062c - std::panicking::default_hook::{{closure}}::h6350a945c4503995 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:300:27 [INFO] [stdout] 10: 0x73721c100482 - std::panicking::default_hook::h4b8983249f85bd0b [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x73721beb3e54 - as core::ops::function::Fn>::call::hede30da1739cef56 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x73721beb3e54 - test::test_main_with_exit_callback::{{closure}}::h0965311d4539e3e1 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x73721c101093 - as core::ops::function::Fn>::call::hae484572816f635a [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x73721c101093 - std::panicking::rust_panic_with_hook::hb38a28752bc10485 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x73721c100d7a - std::panicking::begin_panic_handler::{{closure}}::h006ddf6127456535 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x73721c0ff499 - std::sys::backtrace::__rust_end_short_backtrace::hf5f4a9954877c175 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x73721c100a0d - __rustc[d925719a8a7e767]::rust_begin_unwind [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x73721be696c0 - core::panicking::panic_fmt::h82f8bf7d1bff5441 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x73721be69b26 - core::result::unwrap_failed::hc0539a8381639cb8 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/result.rs:1761:5 [INFO] [stdout] 20: 0x73721be7444c - core::result::Result::unwrap::h60607511c96c6edc [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/result.rs:1167:23 [INFO] [stdout] 21: 0x73721be7444c - rustlings::exercise::test::test_clean::h92e691d9acac8b7b [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:303:36 [INFO] [stdout] 22: 0x73721be74387 - rustlings::exercise::test::test_clean::{{closure}}::h6ba7a5e487e50c96 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:302:20 [INFO] [stdout] 23: 0x73721be6afd6 - core::ops::function::FnOnce::call_once::h06d8263448c09d32 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x73721beb95fb - core::ops::function::FnOnce::call_once::h3d2c0f0c5993581d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x73721beb95fb - test::__rust_begin_short_backtrace::hf54991c0c0d36629 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:648:18 [INFO] [stdout] 26: 0x73721beb87be - test::run_test_in_process::{{closure}}::h0341f8cea17536bb [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:671:74 [INFO] [stdout] 27: 0x73721beb87be - as core::ops::function::FnOnce<()>>::call_once::h1553eed696704d3d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x73721beb87be - std::panicking::catch_unwind::do_call::h1f63de62998cca9c [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x73721beb87be - std::panicking::catch_unwind::h4302cf2989a72c19 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x73721beb87be - std::panic::catch_unwind::h755c1d140d191b4d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x73721beb87be - test::run_test_in_process::h9532e6446792790f [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:671:27 [INFO] [stdout] 32: 0x73721beb87be - test::run_test::{{closure}}::h4a686694e7a14850 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:592:43 [INFO] [stdout] 33: 0x73721be7d614 - test::run_test::{{closure}}::hc71fa205a786e45a [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:622:41 [INFO] [stdout] 34: 0x73721be7d614 - std::sys::backtrace::__rust_begin_short_backtrace::h47b19d02f1433fd6 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x73721be80d5a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h70d3ad48daaae9ca [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x73721be80d5a - as core::ops::function::FnOnce<()>>::call_once::h05c136ea56e78f01 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x73721be80d5a - std::panicking::catch_unwind::do_call::h319e6bf1ae676552 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x73721be80d5a - std::panicking::catch_unwind::h87e2ae4fefda4094 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x73721be80d5a - std::panic::catch_unwind::hfb9059861e181e57 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x73721be80d5a - std::thread::Builder::spawn_unchecked_::{{closure}}::h9acdf04a4f8f3746 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x73721be80d5a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h04b8077dc2df262e [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x73721c103ae7 - as core::ops::function::FnOnce>::call_once::hfdaf4814ac3c8671 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x73721c103ae7 - as core::ops::function::FnOnce>::call_once::h1e491c0829796b5d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x73721c103ae7 - std::sys::pal::unix::thread::Thread::new::thread_start::h72c96c274d9d1b61 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/pal/unix/thread.rs:97:17 [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'exercise::test::test_exercise_with_output' panicked at src/exercise.rs:376:38: [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/./rmetaMGGhIl\"\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: 0x73721c0fefa2 - std::backtrace_rs::backtrace::libunwind::trace::hc0462517b060cf4b [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x73721c0fefa2 - std::backtrace_rs::backtrace::trace_unsynchronized::he3231a4df0b43f00 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x73721c0fefa2 - std::sys::backtrace::_print_fmt::h7f744866c41d3a31 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x73721c0fefa2 - ::fmt::h1ef81e33f64f634e [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x73721c13ae73 - core::fmt::rt::Argument::fmt::h81a194710c4034a0 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x73721c13ae73 - core::fmt::write::h1ab4e554d51bab56 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/fmt/mod.rs:1460:25 [INFO] [stdout] 6: 0x73721c0fc3f3 - std::io::default_write_fmt::h1d8065796ed487b7 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x73721c0fc3f3 - std::io::Write::write_fmt::hb706b37400bb89a4 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x73721c0fedf2 - std::sys::backtrace::BacktraceLock::print::h727d5db2588a6e85 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x73721c10062c - std::panicking::default_hook::{{closure}}::h6350a945c4503995 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:300:27 [INFO] [stdout] 10: 0x73721c100482 - std::panicking::default_hook::h4b8983249f85bd0b [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x73721beb3e54 - as core::ops::function::Fn>::call::hede30da1739cef56 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x73721beb3e54 - test::test_main_with_exit_callback::{{closure}}::h0965311d4539e3e1 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x73721c101093 - as core::ops::function::Fn>::call::hae484572816f635a [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x73721c101093 - std::panicking::rust_panic_with_hook::hb38a28752bc10485 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x73721c100d7a - std::panicking::begin_panic_handler::{{closure}}::h006ddf6127456535 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x73721c0ff499 - std::sys::backtrace::__rust_end_short_backtrace::hf5f4a9954877c175 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x73721c100a0d - __rustc[d925719a8a7e767]::rust_begin_unwind [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x73721be696c0 - core::panicking::panic_fmt::h82f8bf7d1bff5441 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x73721be69b26 - core::result::unwrap_failed::hc0539a8381639cb8 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/result.rs:1761:5 [INFO] [stdout] 20: 0x73721be752e6 - core::result::Result::unwrap::h95c4406b15d96657 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/result.rs:1167:23 [INFO] [stdout] 21: 0x73721be752e6 - rustlings::exercise::test::test_exercise_with_output::h9fca00181ac3f1c9 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:376:38 [INFO] [stdout] 22: 0x73721be750e7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hdafea63b9cca0f3c [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:369:35 [INFO] [stdout] 23: 0x73721be6b016 - core::ops::function::FnOnce::call_once::h186b57b6a9288c21 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x73721beb95fb - core::ops::function::FnOnce::call_once::h3d2c0f0c5993581d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x73721beb95fb - test::__rust_begin_short_backtrace::hf54991c0c0d36629 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:648:18 [INFO] [stdout] 26: 0x73721beb87be - test::run_test_in_process::{{closure}}::h0341f8cea17536bb [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:671:74 [INFO] [stdout] 27: 0x73721beb87be - as core::ops::function::FnOnce<()>>::call_once::h1553eed696704d3d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x73721beb87be - std::panicking::catch_unwind::do_call::h1f63de62998cca9c [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x73721beb87be - std::panicking::catch_unwind::h4302cf2989a72c19 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x73721beb87be - std::panic::catch_unwind::h755c1d140d191b4d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x73721beb87be - test::run_test_in_process::h9532e6446792790f [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:671:27 [INFO] [stdout] 32: 0x73721beb87be - test::run_test::{{closure}}::h4a686694e7a14850 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:592:43 [INFO] [stdout] 33: 0x73721be7d614 - test::run_test::{{closure}}::hc71fa205a786e45a [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:622:41 [INFO] [stdout] 34: 0x73721be7d614 - std::sys::backtrace::__rust_begin_short_backtrace::h47b19d02f1433fd6 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x73721be80d5a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h70d3ad48daaae9ca [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x73721be80d5a - as core::ops::function::FnOnce<()>>::call_once::h05c136ea56e78f01 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x73721be80d5a - std::panicking::catch_unwind::do_call::h319e6bf1ae676552 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x73721be80d5a - std::panicking::catch_unwind::h87e2ae4fefda4094 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x73721be80d5a - std::panic::catch_unwind::hfb9059861e181e57 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x73721be80d5a - std::thread::Builder::spawn_unchecked_::{{closure}}::h9acdf04a4f8f3746 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x73721be80d5a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h04b8077dc2df262e [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x73721c103ae7 - as core::ops::function::FnOnce>::call_once::hfdaf4814ac3c8671 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x73721c103ae7 - as core::ops::function::FnOnce>::call_once::h1e491c0829796b5d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x73721c103ae7 - std::sys::pal::unix::thread::Thread::new::thread_start::h72c96c274d9d1b61 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/pal/unix/thread.rs:97:17 [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 0.06s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "a537715c6eebc44eb902a18cd55699df7bc2e0c62a6a055e5e3829d5248f296d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a537715c6eebc44eb902a18cd55699df7bc2e0c62a6a055e5e3829d5248f296d", kill_on_drop: false }` [INFO] [stdout] a537715c6eebc44eb902a18cd55699df7bc2e0c62a6a055e5e3829d5248f296d