[INFO] cloning repository https://github.com/cicvedu/rust-rustlings-CAV-focus [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cicvedu/rust-rustlings-CAV-focus" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frust-rustlings-CAV-focus", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frust-rustlings-CAV-focus'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b99207ff9f756be1371d6b9687f6f7d2c81dbfc1 [INFO] testing cicvedu/rust-rustlings-CAV-focus against try#028592fec99e54cc92def5a2a849c673b066dd93 for pr-146098 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcicvedu%2Frust-rustlings-CAV-focus" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/cicvedu/rust-rustlings-CAV-focus [INFO] finished tweaking git repo https://github.com/cicvedu/rust-rustlings-CAV-focus [INFO] tweaked toml for git repo https://github.com/cicvedu/rust-rustlings-CAV-focus written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/cicvedu/rust-rustlings-CAV-focus on toolchain 028592fec99e54cc92def5a2a849c673b066dd93 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+028592fec99e54cc92def5a2a849c673b066dd93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/cicvedu/rust-rustlings-CAV-focus 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" "+028592fec99e54cc92def5a2a849c673b066dd93" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+028592fec99e54cc92def5a2a849c673b066dd93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d6689ca44f8c95d988c730f94c947b7b96f142ac1313393e065feb04038ff037 [INFO] running `Command { std: "docker" "start" "-a" "d6689ca44f8c95d988c730f94c947b7b96f142ac1313393e065feb04038ff037", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d6689ca44f8c95d988c730f94c947b7b96f142ac1313393e065feb04038ff037", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d6689ca44f8c95d988c730f94c947b7b96f142ac1313393e065feb04038ff037", kill_on_drop: false }` [INFO] [stdout] d6689ca44f8c95d988c730f94c947b7b96f142ac1313393e065feb04038ff037 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+028592fec99e54cc92def5a2a849c673b066dd93" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 60d0b9bff837c127516678aa6b1db2e1f24f0b7198b98efb458235e176cc689e [INFO] running `Command { std: "docker" "start" "-a" "60d0b9bff837c127516678aa6b1db2e1f24f0b7198b98efb458235e176cc689e", kill_on_drop: false }` [INFO] [stderr] Compiling rustlings v5.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:113:20 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type 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 2.50s [INFO] running `Command { std: "docker" "inspect" "60d0b9bff837c127516678aa6b1db2e1f24f0b7198b98efb458235e176cc689e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "60d0b9bff837c127516678aa6b1db2e1f24f0b7198b98efb458235e176cc689e", kill_on_drop: false }` [INFO] [stdout] 60d0b9bff837c127516678aa6b1db2e1f24f0b7198b98efb458235e176cc689e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+028592fec99e54cc92def5a2a849c673b066dd93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ff9fb27e8f435feb457c0c9ee0f1897e4b22a083c3cc70b682a0719fd1510a9f [INFO] running `Command { std: "docker" "start" "-a" "ff9fb27e8f435feb457c0c9ee0f1897e4b22a083c3cc70b682a0719fd1510a9f", kill_on_drop: false }` [INFO] [stderr] Compiling rustlings v5.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:113:20 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 113 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:113:20 [INFO] [stdout] | [INFO] [stdout] 113 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type 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 1.74s [INFO] running `Command { std: "docker" "inspect" "ff9fb27e8f435feb457c0c9ee0f1897e4b22a083c3cc70b682a0719fd1510a9f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ff9fb27e8f435feb457c0c9ee0f1897e4b22a083c3cc70b682a0719fd1510a9f", kill_on_drop: false }` [INFO] [stdout] ff9fb27e8f435feb457c0c9ee0f1897e4b22a083c3cc70b682a0719fd1510a9f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+028592fec99e54cc92def5a2a849c673b066dd93" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 2d5025e9547830de3392761419f6da6082445145b611087d6d5bdb7229f2c7c0 [INFO] running `Command { std: "docker" "start" "-a" "2d5025e9547830de3392761419f6da6082445145b611087d6d5bdb7229f2c7c0", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/exercise.rs:113:20 [INFO] [stderr] | [INFO] [stderr] 113 | pub fn compile(&self) -> Result { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: use `'_` for type 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 0.12s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-656882fefc2a9684) [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' (25) 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: 0x5c671b20d492 - std::backtrace_rs::backtrace::libunwind::trace::hcbb09259ca22005c [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x5c671b20d492 - std::backtrace_rs::backtrace::trace_unsynchronized::h0fac8c223cd6e456 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x5c671b20d492 - std::sys::backtrace::_print_fmt::he5f2b5e0c66ce66e [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5c671b20d492 - ::fmt::haf29e060fb6137a9 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5c671b21e38f - core::fmt::rt::Argument::fmt::h596977d9d4f722b0 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x5c671b21e38f - core::fmt::write::h0ee4d44b8e20572d [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x5c671b1da141 - std::io::default_write_fmt::h5f5bf04c08f51588 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x5c671b1da141 - std::io::Write::write_fmt::he99637cf0d3cbc1c [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x5c671b1e6452 - std::sys::backtrace::BacktraceLock::print::h3db71735b2a2861b [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x5c671b1eb04f - std::panicking::default_hook::{{closure}}::h0168a26bb62ec69b [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x5c671b1eaee1 - std::panicking::default_hook::h7454a6fd0ab61b64 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x5c671af923ee - as core::ops::function::Fn>::call::h8dac224212939801 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/alloc/src/boxed.rs:1987:9 [INFO] [stdout] 12: 0x5c671af923ee - test::test_main_with_exit_callback::{{closure}}::h18346b0063635f4a [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x5c671b1eb70f - as core::ops::function::Fn>::call::h7e5d21d6123baaaf [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/alloc/src/boxed.rs:1987:9 [INFO] [stdout] 14: 0x5c671b1eb70f - std::panicking::panic_with_hook::h2d45a49bfd4e6ec4 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x5c671b1eb56a - std::panicking::panic_handler::{{closure}}::h37f0f43a266cd34d [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x5c671b1e6589 - std::sys::backtrace::__rust_end_short_backtrace::h1ed0bd8883e4d747 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x5c671b1ce48d - __rustc[92da9811a626c906]::rust_begin_unwind [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x5c671b226df0 - core::panicking::panic_fmt::hc1117383da035bf0 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/panicking.rs:78:14 [INFO] [stdout] 19: 0x5c671b2261d6 - core::result::unwrap_failed::h9521c83364d1c9d7 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/result.rs:1855:5 [INFO] [stdout] 20: 0x5c671af680cc - core::result::Result::unwrap::h152896013df10c63 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/result.rs:1226:23 [INFO] [stdout] 21: 0x5c671af680cc - rustlings::exercise::test::test_clean::he5681a735abc4ab5 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:303:36 [INFO] [stdout] 22: 0x5c671af684a7 - rustlings::exercise::test::test_clean::{{closure}}::hd73ef4718c95bd45 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:302:20 [INFO] [stdout] 23: 0x5c671af65656 - core::ops::function::FnOnce::call_once::h5d742f1678112646 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5c671af921ab - core::ops::function::FnOnce::call_once::habfa9d6a6bb4aa21 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x5c671af921ab - test::__rust_begin_short_backtrace::hc119b5350e87269b [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x5c671afa7df5 - test::run_test_in_process::{{closure}}::h47f2af3109a35895 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x5c671afa7df5 - as core::ops::function::FnOnce<()>>::call_once::h5dba888a302c7fc3 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x5c671afa7df5 - std::panicking::catch_unwind::do_call::h245c3fdea830e686 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x5c671afa7df5 - std::panicking::catch_unwind::he88149d1cfc3a929 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x5c671afa7df5 - std::panic::catch_unwind::hd43a8ff20deb6d7a [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x5c671afa7df5 - test::run_test_in_process::hcf11d509449005e2 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x5c671afa7df5 - test::run_test::{{closure}}::heb13d4899a512502 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x5c671af7e5d4 - test::run_test::{{closure}}::h3e08e9adf8aad35e [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x5c671af7e5d4 - std::sys::backtrace::__rust_begin_short_backtrace::h773f9a01402fd17f [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x5c671af81eda - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h408f0520947b97f2 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x5c671af81eda - as core::ops::function::FnOnce<()>>::call_once::h1162a01751e98fdc [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x5c671af81eda - std::panicking::catch_unwind::do_call::hf4224593c5d108e2 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x5c671af81eda - std::panicking::catch_unwind::h4478d419d6ab8a26 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x5c671af81eda - std::panic::catch_unwind::h1e472892204dcfec [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x5c671af81eda - std::thread::Builder::spawn_unchecked_::{{closure}}::hd555321a5ac5351d [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x5c671af81eda - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb9947c3c1cc735ed [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x5c671b1e15ef - as core::ops::function::FnOnce>::call_once::hf699f0a3c139bc19 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/alloc/src/boxed.rs:1973:9 [INFO] [stdout] 43: 0x5c671b1e15ef - std::sys::thread::unix::Thread::new::thread_start::h2d5318761291e34a [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/sys/thread/unix.rs:126:17 [INFO] [stdout] 44: 0x76f91d43eaa4 - [INFO] [stdout] 45: 0x76f91d4cba34 - clone [INFO] [stdout] 46: 0x0 - [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'exercise::test::test_exercise_with_output' (26) 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/./rmetauwJ7jw\"\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: 0x5c671b20d492 - std::backtrace_rs::backtrace::libunwind::trace::hcbb09259ca22005c [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x5c671b20d492 - std::backtrace_rs::backtrace::trace_unsynchronized::h0fac8c223cd6e456 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x5c671b20d492 - std::sys::backtrace::_print_fmt::he5f2b5e0c66ce66e [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5c671b20d492 - ::fmt::haf29e060fb6137a9 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5c671b21e38f - core::fmt::rt::Argument::fmt::h596977d9d4f722b0 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x5c671b21e38f - core::fmt::write::h0ee4d44b8e20572d [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x5c671b1da141 - std::io::default_write_fmt::h5f5bf04c08f51588 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x5c671b1da141 - std::io::Write::write_fmt::he99637cf0d3cbc1c [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x5c671b1e6452 - std::sys::backtrace::BacktraceLock::print::h3db71735b2a2861b [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x5c671b1eb04f - std::panicking::default_hook::{{closure}}::h0168a26bb62ec69b [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x5c671b1eaee1 - std::panicking::default_hook::h7454a6fd0ab61b64 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x5c671af923ee - as core::ops::function::Fn>::call::h8dac224212939801 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/alloc/src/boxed.rs:1987:9 [INFO] [stdout] 12: 0x5c671af923ee - test::test_main_with_exit_callback::{{closure}}::h18346b0063635f4a [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x5c671b1eb70f - as core::ops::function::Fn>::call::h7e5d21d6123baaaf [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/alloc/src/boxed.rs:1987:9 [INFO] [stdout] 14: 0x5c671b1eb70f - std::panicking::panic_with_hook::h2d45a49bfd4e6ec4 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x5c671b1eb56a - std::panicking::panic_handler::{{closure}}::h37f0f43a266cd34d [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x5c671b1e6589 - std::sys::backtrace::__rust_end_short_backtrace::h1ed0bd8883e4d747 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x5c671b1ce48d - __rustc[92da9811a626c906]::rust_begin_unwind [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x5c671b226df0 - core::panicking::panic_fmt::hc1117383da035bf0 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/panicking.rs:78:14 [INFO] [stdout] 19: 0x5c671b2261d6 - core::result::unwrap_failed::h9521c83364d1c9d7 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/result.rs:1855:5 [INFO] [stdout] 20: 0x5c671af68f18 - core::result::Result::unwrap::h6f05dc2ee6e67fc0 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/result.rs:1226:23 [INFO] [stdout] 21: 0x5c671af68f18 - rustlings::exercise::test::test_exercise_with_output::hc8b67f8ef31cd48f [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:376:38 [INFO] [stdout] 22: 0x5c671af69197 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hd5f06828ff14a0a7 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:369:35 [INFO] [stdout] 23: 0x5c671af65716 - core::ops::function::FnOnce::call_once::h885a2407c701aa57 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5c671af921ab - core::ops::function::FnOnce::call_once::habfa9d6a6bb4aa21 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x5c671af921ab - test::__rust_begin_short_backtrace::hc119b5350e87269b [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x5c671afa7df5 - test::run_test_in_process::{{closure}}::h47f2af3109a35895 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x5c671afa7df5 - as core::ops::function::FnOnce<()>>::call_once::h5dba888a302c7fc3 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x5c671afa7df5 - std::panicking::catch_unwind::do_call::h245c3fdea830e686 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x5c671afa7df5 - std::panicking::catch_unwind::he88149d1cfc3a929 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x5c671afa7df5 - std::panic::catch_unwind::hd43a8ff20deb6d7a [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x5c671afa7df5 - test::run_test_in_process::hcf11d509449005e2 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x5c671afa7df5 - test::run_test::{{closure}}::heb13d4899a512502 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x5c671af7e5d4 - test::run_test::{{closure}}::h3e08e9adf8aad35e [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x5c671af7e5d4 - std::sys::backtrace::__rust_begin_short_backtrace::h773f9a01402fd17f [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x5c671af81eda - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h408f0520947b97f2 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x5c671af81eda - as core::ops::function::FnOnce<()>>::call_once::h1162a01751e98fdc [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x5c671af81eda - std::panicking::catch_unwind::do_call::hf4224593c5d108e2 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x5c671af81eda - std::panicking::catch_unwind::h4478d419d6ab8a26 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x5c671af81eda - std::panic::catch_unwind::h1e472892204dcfec [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x5c671af81eda - std::thread::Builder::spawn_unchecked_::{{closure}}::hd555321a5ac5351d [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x5c671af81eda - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb9947c3c1cc735ed [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x5c671b1e15ef - as core::ops::function::FnOnce>::call_once::hf699f0a3c139bc19 [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/alloc/src/boxed.rs:1973:9 [INFO] [stdout] 43: 0x5c671b1e15ef - std::sys::thread::unix::Thread::new::thread_start::h2d5318761291e34a [INFO] [stdout] at /rustc/028592fec99e54cc92def5a2a849c673b066dd93/library/std/src/sys/thread/unix.rs:126:17 [INFO] [stdout] 44: 0x76f91d43eaa4 - [INFO] [stdout] 45: 0x76f91d4cba34 - clone [INFO] [stdout] 46: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] exercise::test::test_clean [INFO] [stdout] exercise::test::test_exercise_with_output [INFO] [stdout] [INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "2d5025e9547830de3392761419f6da6082445145b611087d6d5bdb7229f2c7c0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2d5025e9547830de3392761419f6da6082445145b611087d6d5bdb7229f2c7c0", kill_on_drop: false }` [INFO] [stdout] 2d5025e9547830de3392761419f6da6082445145b611087d6d5bdb7229f2c7c0