[INFO] cloning repository https://github.com/franknoirot/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/franknoirot/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffranknoirot%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffranknoirot%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9f47ac2bccf50606458fb60f993afa5109702c99 [INFO] testing franknoirot/rustlings 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%2Ffranknoirot%2Frustlings" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/franknoirot/rustlings [INFO] finished tweaking git repo https://github.com/franknoirot/rustlings [INFO] tweaked toml for git repo https://github.com/franknoirot/rustlings written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/franknoirot/rustlings 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/franknoirot/rustlings 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6873006692b7f78a4c80d5b0141caaac68c12702e5593f175b8fec13ec16af86 [INFO] running `Command { std: "docker" "start" "-a" "6873006692b7f78a4c80d5b0141caaac68c12702e5593f175b8fec13ec16af86", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6873006692b7f78a4c80d5b0141caaac68c12702e5593f175b8fec13ec16af86", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6873006692b7f78a4c80d5b0141caaac68c12702e5593f175b8fec13ec16af86", kill_on_drop: false }` [INFO] [stdout] 6873006692b7f78a4c80d5b0141caaac68c12702e5593f175b8fec13ec16af86 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 6313cedcc637e6869dc2ba2976297a7ad89d97dedf151131779fcad7ddd4b3c3 [INFO] running `Command { std: "docker" "start" "-a" "6313cedcc637e6869dc2ba2976297a7ad89d97dedf151131779fcad7ddd4b3c3", 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 regex-syntax v0.6.25 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling itoa v1.0.2 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling home v0.5.3 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling regex v1.5.5 [INFO] [stderr] Compiling console v0.15.0 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.5.9 [INFO] [stderr] Compiling rustlings v5.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:110:20 [INFO] [stdout] | [INFO] [stdout] 110 | 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] 110 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.59s [INFO] running `Command { std: "docker" "inspect" "6313cedcc637e6869dc2ba2976297a7ad89d97dedf151131779fcad7ddd4b3c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6313cedcc637e6869dc2ba2976297a7ad89d97dedf151131779fcad7ddd4b3c3", kill_on_drop: false }` [INFO] [stdout] 6313cedcc637e6869dc2ba2976297a7ad89d97dedf151131779fcad7ddd4b3c3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 241788aa757a00d53fb25386839ae06c54aefe236189c2338262894b379f0656 [INFO] running `Command { std: "docker" "start" "-a" "241788aa757a00d53fb25386839ae06c54aefe236189c2338262894b379f0656", 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 difference v2.0.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:110:20 [INFO] [stdout] | [INFO] [stdout] 110 | 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] 110 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling predicates-tree v1.0.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling predicates v1.0.8 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v5.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:110:20 [INFO] [stdout] | [INFO] [stdout] 110 | 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] 110 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 6.09s [INFO] running `Command { std: "docker" "inspect" "241788aa757a00d53fb25386839ae06c54aefe236189c2338262894b379f0656", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "241788aa757a00d53fb25386839ae06c54aefe236189c2338262894b379f0656", kill_on_drop: false }` [INFO] [stdout] 241788aa757a00d53fb25386839ae06c54aefe236189c2338262894b379f0656 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 90597e08670e1c10382c29b5c4f1c5886d5092fc5606feb8c62a7e6154347024 [INFO] running `Command { std: "docker" "start" "-a" "90597e08670e1c10382c29b5c4f1c5886d5092fc5606feb8c62a7e6154347024", kill_on_drop: false }` [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/exercise.rs:110:20 [INFO] [stderr] | [INFO] [stderr] 110 | 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] 110 | 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 0.09s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/rustlings-52b4bfa38a320c60) [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: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: 0x732589206472 - 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: 0x732589206472 - 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: 0x732589206472 - std::sys::backtrace::_print_fmt::h7f744866c41d3a31 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x732589206472 - ::fmt::h1ef81e33f64f634e [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x732589241fa3 - core::fmt::rt::Argument::fmt::h81a194710c4034a0 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x732589241fa3 - core::fmt::write::h1ab4e554d51bab56 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/fmt/mod.rs:1460:25 [INFO] [stdout] 6: 0x7325892038c3 - std::io::default_write_fmt::h1d8065796ed487b7 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x7325892038c3 - std::io::Write::write_fmt::hb706b37400bb89a4 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x7325892062c2 - std::sys::backtrace::BacktraceLock::print::h727d5db2588a6e85 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x732589207afc - std::panicking::default_hook::{{closure}}::h6350a945c4503995 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:300:27 [INFO] [stdout] 10: 0x732589207952 - std::panicking::default_hook::h4b8983249f85bd0b [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x73258909d524 - as core::ops::function::Fn>::call::hede30da1739cef56 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x73258909d524 - test::test_main_with_exit_callback::{{closure}}::h0965311d4539e3e1 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x732589208563 - as core::ops::function::Fn>::call::hae484572816f635a [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x732589208563 - std::panicking::rust_panic_with_hook::hb38a28752bc10485 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x73258920824a - std::panicking::begin_panic_handler::{{closure}}::h006ddf6127456535 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x732589206969 - std::sys::backtrace::__rust_end_short_backtrace::hf5f4a9954877c175 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x732589207edd - __rustc[d925719a8a7e767]::rust_begin_unwind [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x732589053660 - core::panicking::panic_fmt::h82f8bf7d1bff5441 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x732589053ac6 - core::result::unwrap_failed::hc0539a8381639cb8 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/result.rs:1761:5 [INFO] [stdout] 20: 0x73258905d68c - core::result::Result::unwrap::hfc266df21781bb78 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/result.rs:1167:23 [INFO] [stdout] 21: 0x73258905d68c - rustlings::exercise::test::test_clean::h846724cb0e41a23d [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:273:36 [INFO] [stdout] 22: 0x73258905d5c7 - rustlings::exercise::test::test_clean::{{closure}}::h1f1507c69feeedfc [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:272:20 [INFO] [stdout] 23: 0x7325890553f6 - core::ops::function::FnOnce::call_once::h4cc51f1941a6c79c [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x7325890a2ccb - core::ops::function::FnOnce::call_once::h3d2c0f0c5993581d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x7325890a2ccb - test::__rust_begin_short_backtrace::hf54991c0c0d36629 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:648:18 [INFO] [stdout] 26: 0x7325890a1e8e - test::run_test_in_process::{{closure}}::h0341f8cea17536bb [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:671:74 [INFO] [stdout] 27: 0x7325890a1e8e - 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: 0x7325890a1e8e - std::panicking::catch_unwind::do_call::h1f63de62998cca9c [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x7325890a1e8e - std::panicking::catch_unwind::h4302cf2989a72c19 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x7325890a1e8e - std::panic::catch_unwind::h755c1d140d191b4d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panic.rs:359:14 [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] [stdout] 31: 0x7325890a1e8e - test::run_test_in_process::h9532e6446792790f [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:671:27 [INFO] [stdout] 32: 0x7325890a1e8e - test::run_test::{{closure}}::h4a686694e7a14850 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:592:43 [INFO] [stdout] 33: 0x732589066ce4 - test::run_test::{{closure}}::hc71fa205a786e45a [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:622:41 [INFO] [stdout] 34: 0x732589066ce4 - std::sys::backtrace::__rust_begin_short_backtrace::h47b19d02f1433fd6 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x73258906a42a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h70d3ad48daaae9ca [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x73258906a42a - 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: 0x73258906a42a - std::panicking::catch_unwind::do_call::h319e6bf1ae676552 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x73258906a42a - std::panicking::catch_unwind::h87e2ae4fefda4094 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x73258906a42a - std::panic::catch_unwind::hfb9059861e181e57 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x73258906a42a - std::thread::Builder::spawn_unchecked_::{{closure}}::h9acdf04a4f8f3746 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x73258906a42a - 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: 0x73258920afb7 - as core::ops::function::FnOnce>::call_once::hfdaf4814ac3c8671 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x73258920afb7 - as core::ops::function::FnOnce>::call_once::h1e491c0829796b5d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x73258920afb7 - 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: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/./rmetaO0L0Db\"\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: 0x732589206472 - 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: 0x732589206472 - 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: 0x732589206472 - std::sys::backtrace::_print_fmt::h7f744866c41d3a31 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x732589206472 - ::fmt::h1ef81e33f64f634e [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x732589241fa3 - core::fmt::rt::Argument::fmt::h81a194710c4034a0 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x732589241fa3 - core::fmt::write::h1ab4e554d51bab56 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/fmt/mod.rs:1460:25 [INFO] [stdout] 6: 0x7325892038c3 - std::io::default_write_fmt::h1d8065796ed487b7 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x7325892038c3 - std::io::Write::write_fmt::hb706b37400bb89a4 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x7325892062c2 - std::sys::backtrace::BacktraceLock::print::h727d5db2588a6e85 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x732589207afc - std::panicking::default_hook::{{closure}}::h6350a945c4503995 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:300:27 [INFO] [stdout] 10: 0x732589207952 - std::panicking::default_hook::h4b8983249f85bd0b [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x73258909d524 - as core::ops::function::Fn>::call::hede30da1739cef56 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x73258909d524 - test::test_main_with_exit_callback::{{closure}}::h0965311d4539e3e1 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x732589208563 - as core::ops::function::Fn>::call::hae484572816f635a [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x732589208563 - std::panicking::rust_panic_with_hook::hb38a28752bc10485 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x73258920824a - std::panicking::begin_panic_handler::{{closure}}::h006ddf6127456535 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x732589206969 - std::sys::backtrace::__rust_end_short_backtrace::hf5f4a9954877c175 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x732589207edd - __rustc[d925719a8a7e767]::rust_begin_unwind [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x732589053660 - core::panicking::panic_fmt::h82f8bf7d1bff5441 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x732589053ac6 - core::result::unwrap_failed::hc0539a8381639cb8 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/result.rs:1761:5 [INFO] [stdout] 20: 0x73258905e526 - core::result::Result::unwrap::ha3a72d15105337a3 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/result.rs:1167:23 [INFO] [stdout] 21: 0x73258905e526 - rustlings::exercise::test::test_exercise_with_output::h7d5cabca069b9a35 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:346:38 [INFO] [stdout] 22: 0x73258905e327 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h728bdb1fd0f9b0b6 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:339:35 [INFO] [stdout] 23: 0x732589055436 - core::ops::function::FnOnce::call_once::h5a728d808934c0d3 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x7325890a2ccb - core::ops::function::FnOnce::call_once::h3d2c0f0c5993581d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x7325890a2ccb - test::__rust_begin_short_backtrace::hf54991c0c0d36629 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:648:18 [INFO] [stdout] 26: 0x7325890a1e8e - test::run_test_in_process::{{closure}}::h0341f8cea17536bb [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:671:74 [INFO] [stdout] 27: 0x7325890a1e8e - 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: 0x7325890a1e8e - std::panicking::catch_unwind::do_call::h1f63de62998cca9c [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x7325890a1e8e - std::panicking::catch_unwind::h4302cf2989a72c19 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x7325890a1e8e - std::panic::catch_unwind::h755c1d140d191b4d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x7325890a1e8e - test::run_test_in_process::h9532e6446792790f [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:671:27 [INFO] [stdout] 32: 0x7325890a1e8e - test::run_test::{{closure}}::h4a686694e7a14850 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:592:43 [INFO] [stdout] 33: 0x732589066ce4 - test::run_test::{{closure}}::hc71fa205a786e45a [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:622:41 [INFO] [stdout] 34: 0x732589066ce4 - std::sys::backtrace::__rust_begin_short_backtrace::h47b19d02f1433fd6 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x73258906a42a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h70d3ad48daaae9ca [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x73258906a42a - 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: 0x73258906a42a - std::panicking::catch_unwind::do_call::h319e6bf1ae676552 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x73258906a42a - std::panicking::catch_unwind::h87e2ae4fefda4094 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x73258906a42a - std::panic::catch_unwind::hfb9059861e181e57 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x73258906a42a - std::thread::Builder::spawn_unchecked_::{{closure}}::h9acdf04a4f8f3746 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x73258906a42a - 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: 0x73258920afb7 - as core::ops::function::FnOnce>::call_once::hfdaf4814ac3c8671 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x73258920afb7 - as core::ops::function::FnOnce>::call_once::h1e491c0829796b5d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x73258920afb7 - 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 0.24s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "90597e08670e1c10382c29b5c4f1c5886d5092fc5606feb8c62a7e6154347024", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "90597e08670e1c10382c29b5c4f1c5886d5092fc5606feb8c62a7e6154347024", kill_on_drop: false }` [INFO] [stdout] 90597e08670e1c10382c29b5c4f1c5886d5092fc5606feb8c62a7e6154347024