[INFO] cloning repository https://github.com/wulawulu/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wulawulu/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwulawulu%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwulawulu%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2ad8876d082771d3c453d8e4cb62b57599fa8414 [INFO] testing wulawulu/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%2Fwulawulu%2Frustlings" "/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/wulawulu/rustlings [INFO] finished tweaking git repo https://github.com/wulawulu/rustlings [INFO] tweaked toml for git repo https://github.com/wulawulu/rustlings written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/wulawulu/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/wulawulu/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] [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] c1af32f0b8c0108a0a41457ffdbfacf5533911f6923ff664b99de3e5e50b3806 [INFO] running `Command { std: "docker" "start" "-a" "c1af32f0b8c0108a0a41457ffdbfacf5533911f6923ff664b99de3e5e50b3806", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "c1af32f0b8c0108a0a41457ffdbfacf5533911f6923ff664b99de3e5e50b3806", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c1af32f0b8c0108a0a41457ffdbfacf5533911f6923ff664b99de3e5e50b3806", kill_on_drop: false }` [INFO] [stdout] c1af32f0b8c0108a0a41457ffdbfacf5533911f6923ff664b99de3e5e50b3806 [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] 6dca1945d547d492280349ba568e94e31de63705ec2734f3307649eb7f1f0b70 [INFO] running `Command { std: "docker" "start" "-a" "6dca1945d547d492280349ba568e94e31de63705ec2734f3307649eb7f1f0b70", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling proc-macro2 v1.0.64 [INFO] [stderr] Compiling quote v1.0.29 [INFO] [stderr] Compiling unicode-ident v1.0.10 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling serde v1.0.171 [INFO] [stderr] Compiling regex-syntax v0.7.4 [INFO] [stderr] Compiling log v0.4.19 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling argh_shared v0.1.10 [INFO] [stderr] Compiling unicode-width v0.1.10 [INFO] [stderr] Compiling serde_json v1.0.102 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling walkdir v2.3.3 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling itoa v1.0.8 [INFO] [stderr] Compiling ryu v1.0.14 [INFO] [stderr] Compiling home v0.5.5 [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stderr] Compiling slab v0.4.8 [INFO] [stderr] Compiling aho-corasick v1.0.2 [INFO] [stderr] Compiling syn v2.0.25 [INFO] [stderr] Compiling net2 v0.2.39 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling console v0.15.7 [INFO] [stderr] Compiling filetime v0.2.21 [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 regex-automata v0.3.3 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling serde_derive v1.0.171 [INFO] [stderr] Compiling argh_derive v0.1.10 [INFO] [stderr] Compiling regex v1.9.1 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling argh v0.1.10 [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: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 31.20s [INFO] running `Command { std: "docker" "inspect" "6dca1945d547d492280349ba568e94e31de63705ec2734f3307649eb7f1f0b70", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6dca1945d547d492280349ba568e94e31de63705ec2734f3307649eb7f1f0b70", kill_on_drop: false }` [INFO] [stdout] 6dca1945d547d492280349ba568e94e31de63705ec2734f3307649eb7f1f0b70 [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] 99bf0f71af3009f8924f24d13a23d5a52db4970504e13252fd6c1c95153ef0fd [INFO] running `Command { std: "docker" "start" "-a" "99bf0f71af3009f8924f24d13a23d5a52db4970504e13252fd6c1c95153ef0fd", 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: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 v1.0.9 [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: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 6.69s [INFO] running `Command { std: "docker" "inspect" "99bf0f71af3009f8924f24d13a23d5a52db4970504e13252fd6c1c95153ef0fd", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "99bf0f71af3009f8924f24d13a23d5a52db4970504e13252fd6c1c95153ef0fd", kill_on_drop: false }` [INFO] [stdout] 99bf0f71af3009f8924f24d13a23d5a52db4970504e13252fd6c1c95153ef0fd [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] 33f8ba7101cb23cc46e0da5682e7cede3aec09bbed895aad5ae217331ca8319a [INFO] running `Command { std: "docker" "start" "-a" "33f8ba7101cb23cc46e0da5682e7cede3aec09bbed895aad5ae217331ca8319a", 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 0.10s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/rustlings-78c163d0d740547b) [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: 0x7601950fddc2 - 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: 0x7601950fddc2 - 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: 0x7601950fddc2 - std::sys::backtrace::_print_fmt::h7f744866c41d3a31 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x7601950fddc2 - ::fmt::h1ef81e33f64f634e [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x760195139c93 - core::fmt::rt::Argument::fmt::h81a194710c4034a0 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x760195139c93 - core::fmt::write::h1ab4e554d51bab56 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/fmt/mod.rs:1460:25 [INFO] [stdout] 6: 0x7601950fb213 - std::io::default_write_fmt::h1d8065796ed487b7 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x7601950fb213 - std::io::Write::write_fmt::hb706b37400bb89a4 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x7601950fdc12 - std::sys::backtrace::BacktraceLock::print::h727d5db2588a6e85 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x7601950ff44c - std::panicking::default_hook::{{closure}}::h6350a945c4503995 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:300:27 [INFO] [stdout] 10: 0x7601950ff2a2 - std::panicking::default_hook::h4b8983249f85bd0b [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x760194eb1de4 - as core::ops::function::Fn>::call::hede30da1739cef56 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x760194eb1de4 - test::test_main_with_exit_callback::{{closure}}::h0965311d4539e3e1 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x7601950ffeb3 - as core::ops::function::Fn>::call::hae484572816f635a [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x7601950ffeb3 - std::panicking::rust_panic_with_hook::hb38a28752bc10485 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x7601950ffb9a - std::panicking::begin_panic_handler::{{closure}}::h006ddf6127456535 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x7601950fe2b9 - std::sys::backtrace::__rust_end_short_backtrace::hf5f4a9954877c175 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x7601950ff82d - __rustc[d925719a8a7e767]::rust_begin_unwind [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x760194e696c0 - core::panicking::panic_fmt::h82f8bf7d1bff5441 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x760194e69b26 - core::result::unwrap_failed::hc0539a8381639cb8 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/result.rs:1761:5 [INFO] [stdout] 20: 0x760194e7406c - core::result::Result::unwrap::h58e310d64a0f65a2 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/result.rs:1167:23 [INFO] [stdout] 21: 0x760194e7406c - rustlings::exercise::test::test_clean::h41934042e78cd059 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:273:36 [INFO] [stdout] 22: 0x760194e73fa7 - rustlings::exercise::test::test_clean::{{closure}}::h82e3523591b05931 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:272:20 [INFO] [stdout] 23: 0x760194e6bcc6 - core::ops::function::FnOnce::call_once::hce46fc6d1e135031 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x760194eb758b - core::ops::function::FnOnce::call_once::h3d2c0f0c5993581d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x760194eb758b - test::__rust_begin_short_backtrace::hf54991c0c0d36629 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:648:18 [INFO] [stdout] 26: 0x760194eb674e - test::run_test_in_process::{{closure}}::h0341f8cea17536bb [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:671:74 [INFO] [stdout] 27: 0x760194eb674e - 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: 0x760194eb674e - std::panicking::catch_unwind::do_call::h1f63de62998cca9c [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x760194eb674e - std::panicking::catch_unwind::h4302cf2989a72c19 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x760194eb674e - std::panic::catch_unwind::h755c1d140d191b4d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x760194eb674e - test::run_test_in_process::h9532e6446792790f [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:671:27 [INFO] [stdout] 32: 0x760194eb674e - test::run_test::{{closure}}::h4a686694e7a14850 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:592:43 [INFO] [stdout] 33: 0x760194e7b5a4 - test::run_test::{{closure}}::hc71fa205a786e45a [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:622:41 [INFO] [stdout] 34: 0x760194e7b5a4 - std::sys::backtrace::__rust_begin_short_backtrace::h47b19d02f1433fd6 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x760194e7ecea - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h70d3ad48daaae9ca [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x760194e7ecea - 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: 0x760194e7ecea - std::panicking::catch_unwind::do_call::h319e6bf1ae676552 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x760194e7ecea - std::panicking::catch_unwind::h87e2ae4fefda4094 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x760194e7ecea - std::panic::catch_unwind::hfb9059861e181e57 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x760194e7ecea - std::thread::Builder::spawn_unchecked_::{{closure}}::h9acdf04a4f8f3746 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x760194e7ecea - 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: 0x760195102907 - as core::ops::function::FnOnce>::call_once::hfdaf4814ac3c8671 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x760195102907 - as core::ops::function::FnOnce>::call_once::h1e491c0829796b5d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x760195102907 - 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/./rmetaGmxTFz\"\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: 0x7601950fddc2 - 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: 0x7601950fddc2 - 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: 0x7601950fddc2 - std::sys::backtrace::_print_fmt::h7f744866c41d3a31 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x7601950fddc2 - ::fmt::h1ef81e33f64f634e [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x760195139c93 - core::fmt::rt::Argument::fmt::h81a194710c4034a0 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x760195139c93 - core::fmt::write::h1ab4e554d51bab56 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/fmt/mod.rs:1460:25 [INFO] [stdout] 6: 0x7601950fb213 - std::io::default_write_fmt::h1d8065796ed487b7 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x7601950fb213 - std::io::Write::write_fmt::hb706b37400bb89a4 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x7601950fdc12 - std::sys::backtrace::BacktraceLock::print::h727d5db2588a6e85 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x7601950ff44c - std::panicking::default_hook::{{closure}}::h6350a945c4503995 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:300:27 [INFO] [stdout] 10: 0x7601950ff2a2 - std::panicking::default_hook::h4b8983249f85bd0b [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x760194eb1de4 - as core::ops::function::Fn>::call::hede30da1739cef56 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x760194eb1de4 - test::test_main_with_exit_callback::{{closure}}::h0965311d4539e3e1 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x7601950ffeb3 - as core::ops::function::Fn>::call::hae484572816f635a [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x7601950ffeb3 - std::panicking::rust_panic_with_hook::hb38a28752bc10485 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x7601950ffb9a - std::panicking::begin_panic_handler::{{closure}}::h006ddf6127456535 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x7601950fe2b9 - std::sys::backtrace::__rust_end_short_backtrace::hf5f4a9954877c175 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x7601950ff82d - __rustc[d925719a8a7e767]::rust_begin_unwind [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x760194e696c0 - core::panicking::panic_fmt::h82f8bf7d1bff5441 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x760194e69b26 - core::result::unwrap_failed::hc0539a8381639cb8 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/result.rs:1761:5 [INFO] [stdout] 20: 0x760194e74f06 - core::result::Result::unwrap::hb79c44075c12c262 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/result.rs:1167:23 [INFO] [stdout] 21: 0x760194e74f06 - rustlings::exercise::test::test_exercise_with_output::h8f5635d492765729 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:346:38 [INFO] [stdout] 22: 0x760194e74d07 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::he9665b2b530d427e [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:339:35 [INFO] [stdout] 23: 0x760194e6bd06 - core::ops::function::FnOnce::call_once::hfb13503a1507e1fb [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x760194eb758b - core::ops::function::FnOnce::call_once::h3d2c0f0c5993581d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x760194eb758b - test::__rust_begin_short_backtrace::hf54991c0c0d36629 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:648:18 [INFO] [stdout] 26: 0x760194eb674e - test::run_test_in_process::{{closure}}::h0341f8cea17536bb [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:671:74 [INFO] [stdout] 27: 0x760194eb674e - 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: 0x760194eb674e - std::panicking::catch_unwind::do_call::h1f63de62998cca9c [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x760194eb674e - std::panicking::catch_unwind::h4302cf2989a72c19 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x760194eb674e - std::panic::catch_unwind::h755c1d140d191b4d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x760194eb674e - test::run_test_in_process::h9532e6446792790f [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:671:27 [INFO] [stdout] 32: 0x760194eb674e - test::run_test::{{closure}}::h4a686694e7a14850 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:592:43 [INFO] [stdout] 33: 0x760194e7b5a4 - test::run_test::{{closure}}::hc71fa205a786e45a [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/test/src/lib.rs:622:41 [INFO] [stdout] 34: 0x760194e7b5a4 - std::sys::backtrace::__rust_begin_short_backtrace::h47b19d02f1433fd6 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x760194e7ecea - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h70d3ad48daaae9ca [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x760194e7ecea - 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: 0x760194e7ecea - std::panicking::catch_unwind::do_call::h319e6bf1ae676552 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x760194e7ecea - std::panicking::catch_unwind::h87e2ae4fefda4094 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x760194e7ecea - std::panic::catch_unwind::hfb9059861e181e57 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x760194e7ecea - std::thread::Builder::spawn_unchecked_::{{closure}}::h9acdf04a4f8f3746 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x760194e7ecea - 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: 0x760195102907 - as core::ops::function::FnOnce>::call_once::hfdaf4814ac3c8671 [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x760195102907 - as core::ops::function::FnOnce>::call_once::h1e491c0829796b5d [INFO] [stdout] at /rustc/c066bf6804adc55193b71afdff6a56922f4a8689/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x760195102907 - 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 0.17s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "33f8ba7101cb23cc46e0da5682e7cede3aec09bbed895aad5ae217331ca8319a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "33f8ba7101cb23cc46e0da5682e7cede3aec09bbed895aad5ae217331ca8319a", kill_on_drop: false }` [INFO] [stdout] 33f8ba7101cb23cc46e0da5682e7cede3aec09bbed895aad5ae217331ca8319a