[INFO] cloning repository https://github.com/LearningOS/learn_rust_rustlings-Soptionalgit [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LearningOS/learn_rust_rustlings-Soptionalgit" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-Soptionalgit", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-Soptionalgit'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8699cdb5923c4b07028697a2e4625440d2969ed1 [INFO] testing LearningOS/learn_rust_rustlings-Soptionalgit against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-Soptionalgit" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-Soptionalgit [INFO] finished tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-Soptionalgit [INFO] tweaked toml for git repo https://github.com/LearningOS/learn_rust_rustlings-Soptionalgit written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/LearningOS/learn_rust_rustlings-Soptionalgit on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/LearningOS/learn_rust_rustlings-Soptionalgit 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] testing LearningOS/learn_rust_rustlings-Soptionalgit against try#bd7d74411512a3dd3b35d2f699c51dd2557c7e7e+cargoflags=-Zbuild-dir-new-layout for pr-149852-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Flearn_rust_rustlings-Soptionalgit" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-Soptionalgit [INFO] finished tweaking git repo https://github.com/LearningOS/learn_rust_rustlings-Soptionalgit [INFO] tweaked toml for git repo https://github.com/LearningOS/learn_rust_rustlings-Soptionalgit written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/LearningOS/learn_rust_rustlings-Soptionalgit on toolchain bd7d74411512a3dd3b35d2f699c51dd2557c7e7e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/LearningOS/learn_rust_rustlings-Soptionalgit 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" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded argh v0.1.5 [INFO] [stderr] Downloaded argh_shared v0.1.5 [INFO] [stderr] Downloaded predicates-tree v1.0.3 [INFO] [stderr] Downloaded serde_derive v1.0.129 [INFO] [stderr] Downloaded argh_derive v0.1.5 [INFO] [stderr] Downloaded predicates-core v1.0.2 [INFO] [stderr] Downloaded proc-macro2 v1.0.28 [INFO] [stderr] Downloaded serde v1.0.129 [INFO] [stderr] Downloaded syn v1.0.75 [INFO] [stderr] Downloaded libc v0.2.100 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7e5e8c4fab231fa50814ffa4a638bf7044af805efbf991f88764bebe5c97a739 [INFO] running `Command { std: "docker" "start" "-a" "7e5e8c4fab231fa50814ffa4a638bf7044af805efbf991f88764bebe5c97a739", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7e5e8c4fab231fa50814ffa4a638bf7044af805efbf991f88764bebe5c97a739", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7e5e8c4fab231fa50814ffa4a638bf7044af805efbf991f88764bebe5c97a739", kill_on_drop: false }` [INFO] [stdout] 7e5e8c4fab231fa50814ffa4a638bf7044af805efbf991f88764bebe5c97a739 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }` [INFO] [stdout] 0c0a9f38d46e026200d3cb9064c859ed57237a8dd0de059f9633072e2b156c79 [INFO] running `Command { std: "docker" "start" "-a" "0c0a9f38d46e026200d3cb9064c859ed57237a8dd0de059f9633072e2b156c79", 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 serde v1.0.129 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling itoa v1.0.2 [INFO] [stderr] Compiling home v0.5.3 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling regex v1.5.5 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling console v0.15.0 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.5.9 [INFO] [stderr] Compiling rustlings v4.8.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:109:20 [INFO] [stdout] | [INFO] [stdout] 109 | 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] 109 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.64s [INFO] running `Command { std: "docker" "inspect" "0c0a9f38d46e026200d3cb9064c859ed57237a8dd0de059f9633072e2b156c79", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c0a9f38d46e026200d3cb9064c859ed57237a8dd0de059f9633072e2b156c79", kill_on_drop: false }` [INFO] [stdout] 0c0a9f38d46e026200d3cb9064c859ed57237a8dd0de059f9633072e2b156c79 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }` [INFO] [stdout] a77ec32f3f3c6d527303ddd645c8f296235ef2af37788e5c0bee22e3fabb5d3f [INFO] running `Command { std: "docker" "start" "-a" "a77ec32f3f3c6d527303ddd645c8f296235ef2af37788e5c0bee22e3fabb5d3f", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling predicates-core v1.0.2 [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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:109:20 [INFO] [stdout] | [INFO] [stdout] 109 | 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] 109 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling predicates-tree v1.0.3 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling predicates v1.0.8 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v4.8.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:109:20 [INFO] [stdout] | [INFO] [stdout] 109 | 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] 109 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 3.11s [INFO] running `Command { std: "docker" "inspect" "a77ec32f3f3c6d527303ddd645c8f296235ef2af37788e5c0bee22e3fabb5d3f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a77ec32f3f3c6d527303ddd645c8f296235ef2af37788e5c0bee22e3fabb5d3f", kill_on_drop: false }` [INFO] [stdout] a77ec32f3f3c6d527303ddd645c8f296235ef2af37788e5c0bee22e3fabb5d3f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bd7d74411512a3dd3b35d2f699c51dd2557c7e7e" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }` [INFO] [stdout] b8a96641dad18fafb4f45fb9a33f4eb00dbc7cee6c557476beb74840b5959a1b [INFO] running `Command { std: "docker" "start" "-a" "b8a96641dad18fafb4f45fb9a33f4eb00dbc7cee6c557476beb74840b5959a1b", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/exercise.rs:109:20 [INFO] [stderr] | [INFO] [stderr] 109 | 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] 109 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `rustlings` (bin "rustlings") generated 1 warning (run `cargo fix --bin "rustlings" -p 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/lib.rs (/opt/rustwide/target/debug/build/rustlings/222560ec1b06fdf6/deps/rustlings-222560ec1b06fdf6) [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/build/rustlings/bcf8686c64b913f0/deps/rustlings-bcf8686c64b913f0) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test exercise::test::test_pending_state ... ok [INFO] [stdout] test exercise::test::test_finished_exercise ... ok [INFO] [stdout] test exercise::test::test_clean ... FAILED [INFO] [stdout] test exercise::test::test_exercise_with_output ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_clean stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'exercise::test::test_clean' (26) panicked at src/exercise.rs:269:36: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55601d4f9dd2 - std[840933623431fd06]::backtrace_rs::backtrace::libunwind::trace [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x55601d4f9dd2 - std[840933623431fd06]::backtrace_rs::backtrace::trace_unsynchronized:: [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x55601d4f9dd2 - std[840933623431fd06]::sys::backtrace::_print_fmt [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:74:9 [INFO] [stdout] 3: 0x55601d4f9dd2 - <::print::DisplayBacktrace as core[8f93d80df273fe75]::fmt::Display>::fmt [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:44:26 [INFO] [stdout] 4: 0x55601d50f54a - ::fmt [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/fmt/rt.rs:152:76 [INFO] [stdout] 5: 0x55601d50f54a - core[8f93d80df273fe75]::fmt::write [INFO] [stdout] 6: 0x55601d4fecd6 - std[840933623431fd06]::io::default_write_fmt::> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x55601d4fecd6 - as std[840933623431fd06]::io::Write>::write_fmt [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:1994:13 [INFO] [stdout] 8: 0x55601d4d7f1f - ::print [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:47:9 [INFO] [stdout] 9: 0x55601d4d7f1f - std[840933623431fd06]::panicking::default_hook::{closure#0} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:292:27 [INFO] [stdout] 10: 0x55601d4f1e79 - std[840933623431fd06]::panicking::default_hook [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:316:9 [INFO] [stdout] 11: 0x55601d363cde - core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 12: 0x55601d363cde - test[2f1252070343a163]::test_main_with_exit_callback::::{closure#0} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x55601d4f2032 - core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 14: 0x55601d4f2032 - std[840933623431fd06]::panicking::panic_with_hook [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:833:13 [INFO] [stdout] 15: 0x55601d4d7fd8 - std[840933623431fd06]::panicking::panic_handler::{closure#0} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:698:13 [INFO] [stdout] 16: 0x55601d4cf8c9 - std[840933623431fd06]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:182:18 [INFO] [stdout] 17: 0x55601d4d8e2d - __rustc[5b4a0c6d8cc4a177]::rust_begin_unwind [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:689:5 [INFO] [stdout] 18: 0x55601d50fc8c - core[8f93d80df273fe75]::panicking::panic_fmt [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panicking.rs:80:14 [INFO] [stdout] 19: 0x55601d50fa02 - core[8f93d80df273fe75]::result::unwrap_failed [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/result.rs:1867:5 [INFO] [stdout] 20: 0x55601d351cfc - >::unwrap [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/result.rs:1233:23 [INFO] [stdout] 21: 0x55601d351cfc - rustlings[acf58aac91fa2604]::exercise::test::test_clean [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:36 [INFO] [stdout] 22: 0x55601d350e97 - rustlings[acf58aac91fa2604]::exercise::test::test_clean::{closure#0} [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:268:20 [INFO] [stdout] 23: 0x55601d34fe76 - >::call_once [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x55601d35808b - core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x55601d35808b - test[2f1252070343a163]::__rust_begin_short_backtrace::, fn() -> core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x55601d3648ea - test[2f1252070343a163]::run_test_in_process::{closure#0} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x55601d3648ea - as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x55601d3648ea - std[840933623431fd06]::panicking::catch_unwind::do_call::, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40 [INFO] [stdout] 29: 0x55601d3648ea - std[840933623431fd06]::panicking::catch_unwind::, core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19 [INFO] [stdout] 30: 0x55601d3648ea - std[840933623431fd06]::panic::catch_unwind::, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x55601d3648ea - test[2f1252070343a163]::run_test_in_process [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x55601d3648ea - test[2f1252070343a163]::run_test::{closure#0} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x55601d35edb4 - test[2f1252070343a163]::run_test::{closure#1} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x55601d35edb4 - std[840933623431fd06]::sys::backtrace::__rust_begin_short_backtrace:: [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:166:18 [INFO] [stdout] 35: 0x55601d3673e2 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::::{closure#1}::{closure#0} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:91:13 [INFO] [stdout] 36: 0x55601d3673e2 - ::{closure#1}::{closure#0}> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x55601d3673e2 - std[840933623431fd06]::panicking::catch_unwind::do_call::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40 [INFO] [stdout] 38: 0x55601d3673e2 - std[840933623431fd06]::panicking::catch_unwind::<(), core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe::{closure#1}::{closure#0}>> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19 [INFO] [stdout] 39: 0x55601d3673e2 - std[840933623431fd06]::panic::catch_unwind::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x55601d3673e2 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::::{closure#1} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:89:26 [INFO] [stdout] 41: 0x55601d3673e2 - ::{closure#1} as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x55601d4f94df - + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2206:9 [INFO] [stdout] 43: 0x55601d4f94df - ::new::thread_start [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/thread/unix.rs:119:17 [INFO] [stdout] 44: 0x77be2caa8aa4 - [INFO] [stdout] 45: 0x77be2cb35a64 - 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' (27) panicked at src/exercise.rs:342:38: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: ExerciseOutput { stdout: "", stderr: "\u{1b}[1m\u{1b}[91merror\u{1b}[0m\u{1b}[1m: couldn't create a temp dir: Read-only file system (os error 30) at path \"/opt/rustwide/workdir/./rmetallaAew\"\u{1b}[0m\n\n\u{1b}[1m\u{1b}[91merror\u{1b}[0m\u{1b}[1m: aborting due to 1 previous error\u{1b}[0m\n\n" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55601d4f9dd2 - std[840933623431fd06]::backtrace_rs::backtrace::libunwind::trace [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x55601d4f9dd2 - std[840933623431fd06]::backtrace_rs::backtrace::trace_unsynchronized:: [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x55601d4f9dd2 - std[840933623431fd06]::sys::backtrace::_print_fmt [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:74:9 [INFO] [stdout] 3: 0x55601d4f9dd2 - <::print::DisplayBacktrace as core[8f93d80df273fe75]::fmt::Display>::fmt [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:44:26 [INFO] [stdout] 4: 0x55601d50f54a - ::fmt [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/fmt/rt.rs:152:76 [INFO] [stdout] 5: 0x55601d50f54a - core[8f93d80df273fe75]::fmt::write [INFO] [stdout] 6: 0x55601d4fecd6 - std[840933623431fd06]::io::default_write_fmt::> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x55601d4fecd6 - as std[840933623431fd06]::io::Write>::write_fmt [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/io/mod.rs:1994:13 [INFO] [stdout] 8: 0x55601d4d7f1f - ::print [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:47:9 [INFO] [stdout] 9: 0x55601d4d7f1f - std[840933623431fd06]::panicking::default_hook::{closure#0} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:292:27 [INFO] [stdout] 10: 0x55601d4f1e79 - std[840933623431fd06]::panicking::default_hook [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:316:9 [INFO] [stdout] 11: 0x55601d363cde - core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 12: 0x55601d363cde - test[2f1252070343a163]::test_main_with_exit_callback::::{closure#0} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x55601d4f2032 - core[8f93d80df273fe75]::ops::function::Fn<(&'a std[840933623431fd06]::panic::PanicHookInfo<'b>,), Output = ()> + core[8f93d80df273fe75]::marker::Sync + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::Fn<(&std[840933623431fd06]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 14: 0x55601d4f2032 - std[840933623431fd06]::panicking::panic_with_hook [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:833:13 [INFO] [stdout] 15: 0x55601d4d7fd8 - std[840933623431fd06]::panicking::panic_handler::{closure#0} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:698:13 [INFO] [stdout] 16: 0x55601d4cf8c9 - std[840933623431fd06]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:182:18 [INFO] [stdout] 17: 0x55601d4d8e2d - __rustc[5b4a0c6d8cc4a177]::rust_begin_unwind [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:689:5 [INFO] [stdout] 18: 0x55601d50fc8c - core[8f93d80df273fe75]::panicking::panic_fmt [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panicking.rs:80:14 [INFO] [stdout] 19: 0x55601d50fa02 - core[8f93d80df273fe75]::result::unwrap_failed [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/result.rs:1867:5 [INFO] [stdout] 20: 0x55601d352a98 - >::unwrap [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/result.rs:1233:23 [INFO] [stdout] 21: 0x55601d352a98 - rustlings[acf58aac91fa2604]::exercise::test::test_exercise_with_output [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:342:38 [INFO] [stdout] 22: 0x55601d350f27 - rustlings[acf58aac91fa2604]::exercise::test::test_exercise_with_output::{closure#0} [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:335:35 [INFO] [stdout] 23: 0x55601d34ff36 - >::call_once [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x55601d35808b - core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x55601d35808b - test[2f1252070343a163]::__rust_begin_short_backtrace::, fn() -> core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x55601d3648ea - test[2f1252070343a163]::run_test_in_process::{closure#0} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x55601d3648ea - as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x55601d3648ea - std[840933623431fd06]::panicking::catch_unwind::do_call::, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40 [INFO] [stdout] 29: 0x55601d3648ea - std[840933623431fd06]::panicking::catch_unwind::, core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19 [INFO] [stdout] 30: 0x55601d3648ea - std[840933623431fd06]::panic::catch_unwind::, core[8f93d80df273fe75]::result::Result<(), alloc[40b2bae28975ac47]::string::String>> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x55601d3648ea - test[2f1252070343a163]::run_test_in_process [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x55601d3648ea - test[2f1252070343a163]::run_test::{closure#0} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x55601d35edb4 - test[2f1252070343a163]::run_test::{closure#1} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x55601d35edb4 - std[840933623431fd06]::sys::backtrace::__rust_begin_short_backtrace:: [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/backtrace.rs:166:18 [INFO] [stdout] 35: 0x55601d3673e2 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::::{closure#1}::{closure#0} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:91:13 [INFO] [stdout] 36: 0x55601d3673e2 - ::{closure#1}::{closure#0}> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x55601d3673e2 - std[840933623431fd06]::panicking::catch_unwind::do_call::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:581:40 [INFO] [stdout] 38: 0x55601d3673e2 - std[840933623431fd06]::panicking::catch_unwind::<(), core[8f93d80df273fe75]::panic::unwind_safe::AssertUnwindSafe::{closure#1}::{closure#0}>> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panicking.rs:544:19 [INFO] [stdout] 39: 0x55601d3673e2 - std[840933623431fd06]::panic::catch_unwind::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x55601d3673e2 - std[840933623431fd06]::thread::lifecycle::spawn_unchecked::::{closure#1} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/thread/lifecycle.rs:89:26 [INFO] [stdout] 41: 0x55601d3673e2 - ::{closure#1} as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x55601d4f94df - + core[8f93d80df273fe75]::marker::Send> as core[8f93d80df273fe75]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/alloc/src/boxed.rs:2206:9 [INFO] [stdout] 43: 0x55601d4f94df - ::new::thread_start [INFO] [stdout] at /rustc/bd7d74411512a3dd3b35d2f699c51dd2557c7e7e/library/std/src/sys/thread/unix.rs:119:17 [INFO] [stdout] 44: 0x77be2caa8aa4 - [INFO] [stdout] 45: 0x77be2cb35a64 - 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 0.09s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "b8a96641dad18fafb4f45fb9a33f4eb00dbc7cee6c557476beb74840b5959a1b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b8a96641dad18fafb4f45fb9a33f4eb00dbc7cee6c557476beb74840b5959a1b", kill_on_drop: false }` [INFO] [stdout] b8a96641dad18fafb4f45fb9a33f4eb00dbc7cee6c557476beb74840b5959a1b