[INFO] cloning repository https://github.com/LearningOS/rust-rustlings-2024-spring-dyvue [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LearningOS/rust-rustlings-2024-spring-dyvue" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2024-spring-dyvue", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2024-spring-dyvue'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e719d988e111bc2e9ba6ba5300aeb484a356f745 [INFO] testing LearningOS/rust-rustlings-2024-spring-dyvue against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2024-spring-dyvue" "/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/rust-rustlings-2024-spring-dyvue [INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-2024-spring-dyvue [INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-2024-spring-dyvue written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/LearningOS/rust-rustlings-2024-spring-dyvue on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/LearningOS/rust-rustlings-2024-spring-dyvue 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d3485ad607d3575d32b21b49f0fa59e533177bb9645bb9f3b6a8e686129c7f95 [INFO] running `Command { std: "docker" "start" "-a" "d3485ad607d3575d32b21b49f0fa59e533177bb9645bb9f3b6a8e686129c7f95", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d3485ad607d3575d32b21b49f0fa59e533177bb9645bb9f3b6a8e686129c7f95", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d3485ad607d3575d32b21b49f0fa59e533177bb9645bb9f3b6a8e686129c7f95", kill_on_drop: false }` [INFO] [stdout] d3485ad607d3575d32b21b49f0fa59e533177bb9645bb9f3b6a8e686129c7f95 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 037cfc10ec929bb8c2f1c5091a37c123d8422e02a23e9f56794f52ad79dfbc2e [INFO] running `Command { std: "docker" "start" "-a" "037cfc10ec929bb8c2f1c5091a37c123d8422e02a23e9f56794f52ad79dfbc2e", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.64 [INFO] [stderr] Compiling unicode-ident v1.0.10 [INFO] [stderr] Compiling quote v1.0.29 [INFO] [stderr] Compiling slab v0.4.8 [INFO] [stderr] Compiling lock_api v0.4.10 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Compiling serde v1.0.171 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling log v0.4.19 [INFO] [stderr] Compiling regex-syntax v0.7.4 [INFO] [stderr] Compiling smallvec v1.11.0 [INFO] [stderr] Compiling net2 v0.2.39 [INFO] [stderr] Compiling tokio v1.29.1 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling aho-corasick v1.0.2 [INFO] [stderr] Compiling unicode-width v0.1.10 [INFO] [stderr] Compiling argh_shared v0.1.10 [INFO] [stderr] Compiling serde_json v1.0.102 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling console v0.15.7 [INFO] [stderr] Compiling filetime v0.2.21 [INFO] [stderr] Compiling signal-hook-registry v1.4.1 [INFO] [stderr] Compiling num_cpus v1.16.0 [INFO] [stderr] Compiling socket2 v0.4.9 [INFO] [stderr] Compiling mio v0.8.8 [INFO] [stderr] Compiling bytes v1.4.0 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling itoa v1.0.8 [INFO] [stderr] Compiling ryu v1.0.14 [INFO] [stderr] Compiling pin-project-lite v0.2.10 [INFO] [stderr] Compiling parking_lot v0.12.1 [INFO] [stderr] Compiling home v0.5.5 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling syn v2.0.25 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling regex-automata v0.3.3 [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 serde_derive v1.0.171 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Compiling toml v0.5.11 [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 40.85s [INFO] running `Command { std: "docker" "inspect" "037cfc10ec929bb8c2f1c5091a37c123d8422e02a23e9f56794f52ad79dfbc2e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "037cfc10ec929bb8c2f1c5091a37c123d8422e02a23e9f56794f52ad79dfbc2e", kill_on_drop: false }` [INFO] [stdout] 037cfc10ec929bb8c2f1c5091a37c123d8422e02a23e9f56794f52ad79dfbc2e [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ebc855a4aaeb629be51eb88c2c1f4f4664f0271fdb6880a20ea74c25324e1f59 [INFO] running `Command { std: "docker" "start" "-a" "ebc855a4aaeb629be51eb88c2c1f4f4664f0271fdb6880a20ea74c25324e1f59", kill_on_drop: false }` [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling predicates-core v1.0.6 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling termtree v0.4.1 [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] Compiling predicates v1.0.8 [INFO] [stderr] Compiling predicates-tree v1.0.9 [INFO] [stderr] Compiling assert_cmd v0.11.1 [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 `test` profile [unoptimized + debuginfo] target(s) in 4.53s [INFO] running `Command { std: "docker" "inspect" "ebc855a4aaeb629be51eb88c2c1f4f4664f0271fdb6880a20ea74c25324e1f59", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ebc855a4aaeb629be51eb88c2c1f4f4664f0271fdb6880a20ea74c25324e1f59", kill_on_drop: false }` [INFO] [stdout] ebc855a4aaeb629be51eb88c2c1f4f4664f0271fdb6880a20ea74c25324e1f59 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 60fd0685490ada4e7aab27b83fd10839f8f699488a25cf2e633abc2756bfb1b5 [INFO] running `Command { std: "docker" "start" "-a" "60fd0685490ada4e7aab27b83fd10839f8f699488a25cf2e633abc2756bfb1b5", 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 0.10s [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: 0x6294120955f2 - std::backtrace_rs::backtrace::libunwind::trace::hb47480f78a1ce3ca [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x6294120955f2 - std::backtrace_rs::backtrace::trace_unsynchronized::hc1656d2da6a98cd5 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x6294120955f2 - std::sys::backtrace::_print_fmt::h19dc0f5ca3f1c927 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x6294120955f2 - ::fmt::h71e2dbb21440d8d7 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x6294120a64bf - core::fmt::rt::Argument::fmt::h5bcabd5a3c1d10f7 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x6294120a64bf - core::fmt::write::ha34f2b5c70e30f63 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x629412062541 - std::io::default_write_fmt::hc84cc28e76a5c1f5 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x629412062541 - std::io::Write::write_fmt::h3d155d387676f813 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x62941206e982 - std::sys::backtrace::BacktraceLock::print::hb3aae3980c2c9bd5 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x62941207357f - std::panicking::default_hook::{{closure}}::h1b7baa88a148d351 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x629412073411 - std::panicking::default_hook::hbc5e86c06039547d [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x629411e1798e - as core::ops::function::Fn>::call::hde9bf27c0be3eeba [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 12: 0x629411e1798e - test::test_main_with_exit_callback::{{closure}}::hb25f3941205bac36 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x629412073c3f - as core::ops::function::Fn>::call::hdeb5adeaf88910e9 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 14: 0x629412073c3f - std::panicking::panic_with_hook::ha6d2c09d64f936dd [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x629412073a9a - std::panicking::panic_handler::{{closure}}::h455c9d131d722636 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x62941206eac9 - std::sys::backtrace::__rust_end_short_backtrace::hd6ef955384ebd085 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x6294120568dd - __rustc[f338935add60802b]::rust_begin_unwind [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x6294120aeef0 - core::panicking::panic_fmt::hb8d4a4959b79599f [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x6294120ae306 - core::result::unwrap_failed::hff1097c91eb4b6b2 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/result.rs:1854:5 [INFO] [stdout] 20: 0x629411dee07c - core::result::Result::unwrap::hffce7583abcba09c [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/result.rs:1225:23 [INFO] [stdout] 21: 0x629411dee07c - rustlings::exercise::test::test_clean::h41daa95b2c673547 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:303:36 [INFO] [stdout] 22: 0x629411dee447 - rustlings::exercise::test::test_clean::{{closure}}::h87eb71c4dc796c56 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:302:20 [INFO] [stdout] 23: 0x629411de4916 - core::ops::function::FnOnce::call_once::hee220c190eced5fd [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 24: 0x629411e1774b - core::ops::function::FnOnce::call_once::h6784bd5bdcff97de [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 25: 0x629411e1774b - test::__rust_begin_short_backtrace::h798bd19dd09654cd [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x629411e2d235 - test::run_test_in_process::{{closure}}::heb6e1d5908538a47 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x629411e2d235 - as core::ops::function::FnOnce<()>>::call_once::h9431628be07bec43 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x629411e2d235 - std::panicking::catch_unwind::do_call::h8c5784c3e5739874 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x629411e2d235 - std::panicking::catch_unwind::hd47261f607ec5959 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x629411e2d235 - std::panic::catch_unwind::h75de848a5faf1178 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x629411e2d235 - test::run_test_in_process::h0c2306062242e954 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x629411e2d235 - test::run_test::{{closure}}::h1d068b692146486f [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x629411e03ba4 - test::run_test::{{closure}}::h9b4e49b84b6af8d5 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x629411e03ba4 - std::sys::backtrace::__rust_begin_short_backtrace::h91a1650e239bfc6e [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x629411e0753a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::he53e60d6e45d96c0 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x629411e0753a - as core::ops::function::FnOnce<()>>::call_once::h387e1a11696f00c7 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x629411e0753a - std::panicking::catch_unwind::do_call::h40236a17a6d8fbeb [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x629411e0753a - std::panicking::catch_unwind::h2bcea238e4fbd369 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x629411e0753a - std::panic::catch_unwind::heaa1daa6f035f00e [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x629411e0753a - std::thread::Builder::spawn_unchecked_::{{closure}}::hd02bdac90423c966 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x629411e0753a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4bf9f1a93d331696 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 42: 0x629412068a5f - as core::ops::function::FnOnce>::call_once::h182634db7b0cf35c [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 43: 0x629412068a5f - std::sys::pal::unix::thread::Thread::new::thread_start::h74991452e4c34e7b [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/sys/pal/unix/thread.rs:118:17 [INFO] [stdout] 44: 0x7c3546c8faa4 - [INFO] [stdout] 45: 0x7c3546d1ca34 - 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/./rmeta4q0k2g\"\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: 0x6294120955f2 - std::backtrace_rs::backtrace::libunwind::trace::hb47480f78a1ce3ca [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x6294120955f2 - std::backtrace_rs::backtrace::trace_unsynchronized::hc1656d2da6a98cd5 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x6294120955f2 - std::sys::backtrace::_print_fmt::h19dc0f5ca3f1c927 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x6294120955f2 - ::fmt::h71e2dbb21440d8d7 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x6294120a64bf - core::fmt::rt::Argument::fmt::h5bcabd5a3c1d10f7 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x6294120a64bf - core::fmt::write::ha34f2b5c70e30f63 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x629412062541 - std::io::default_write_fmt::hc84cc28e76a5c1f5 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x629412062541 - std::io::Write::write_fmt::h3d155d387676f813 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x62941206e982 - std::sys::backtrace::BacktraceLock::print::hb3aae3980c2c9bd5 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x62941207357f - std::panicking::default_hook::{{closure}}::h1b7baa88a148d351 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x629412073411 - std::panicking::default_hook::hbc5e86c06039547d [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x629411e1798e - as core::ops::function::Fn>::call::hde9bf27c0be3eeba [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 12: 0x629411e1798e - test::test_main_with_exit_callback::{{closure}}::hb25f3941205bac36 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x629412073c3f - as core::ops::function::Fn>::call::hdeb5adeaf88910e9 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 14: 0x629412073c3f - std::panicking::panic_with_hook::ha6d2c09d64f936dd [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x629412073a9a - std::panicking::panic_handler::{{closure}}::h455c9d131d722636 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x62941206eac9 - std::sys::backtrace::__rust_end_short_backtrace::hd6ef955384ebd085 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x6294120568dd - __rustc[f338935add60802b]::rust_begin_unwind [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x6294120aeef0 - core::panicking::panic_fmt::hb8d4a4959b79599f [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x6294120ae306 - core::result::unwrap_failed::hff1097c91eb4b6b2 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/result.rs:1854:5 [INFO] [stdout] 20: 0x629411deeeb8 - core::result::Result::unwrap::hc84275bdcddab4d0 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/result.rs:1225:23 [INFO] [stdout] 21: 0x629411deeeb8 - rustlings::exercise::test::test_exercise_with_output::hf3b8b88bec57c0f8 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:376:38 [INFO] [stdout] 22: 0x629411def137 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h707064cba6b016ef [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:369:35 [INFO] [stdout] 23: 0x629411de48d6 - core::ops::function::FnOnce::call_once::h911e20187d68ae4f [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 24: 0x629411e1774b - core::ops::function::FnOnce::call_once::h6784bd5bdcff97de [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 25: 0x629411e1774b - test::__rust_begin_short_backtrace::h798bd19dd09654cd [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x629411e2d235 - test::run_test_in_process::{{closure}}::heb6e1d5908538a47 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x629411e2d235 - as core::ops::function::FnOnce<()>>::call_once::h9431628be07bec43 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x629411e2d235 - std::panicking::catch_unwind::do_call::h8c5784c3e5739874 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x629411e2d235 - std::panicking::catch_unwind::hd47261f607ec5959 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x629411e2d235 - std::panic::catch_unwind::h75de848a5faf1178 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x629411e2d235 - test::run_test_in_process::h0c2306062242e954 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x629411e2d235 - test::run_test::{{closure}}::h1d068b692146486f [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x629411e03ba4 - test::run_test::{{closure}}::h9b4e49b84b6af8d5 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x629411e03ba4 - std::sys::backtrace::__rust_begin_short_backtrace::h91a1650e239bfc6e [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x629411e0753a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::he53e60d6e45d96c0 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x629411e0753a - as core::ops::function::FnOnce<()>>::call_once::h387e1a11696f00c7 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x629411e0753a - std::panicking::catch_unwind::do_call::h40236a17a6d8fbeb [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x629411e0753a - std::panicking::catch_unwind::h2bcea238e4fbd369 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x629411e0753a - std::panic::catch_unwind::heaa1daa6f035f00e [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x629411e0753a - std::thread::Builder::spawn_unchecked_::{{closure}}::hd02bdac90423c966 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x629411e0753a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4bf9f1a93d331696 [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 42: 0x629412068a5f - as core::ops::function::FnOnce>::call_once::h182634db7b0cf35c [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 43: 0x629412068a5f - std::sys::pal::unix::thread::Thread::new::thread_start::h74991452e4c34e7b [INFO] [stdout] at /rustc/d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6/library/std/src/sys/pal/unix/thread.rs:118:17 [INFO] [stdout] 44: 0x7c3546c8faa4 - [INFO] [stdout] 45: 0x7c3546d1ca34 - 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 0.17s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "60fd0685490ada4e7aab27b83fd10839f8f699488a25cf2e633abc2756bfb1b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "60fd0685490ada4e7aab27b83fd10839f8f699488a25cf2e633abc2756bfb1b5", kill_on_drop: false }` [INFO] [stdout] 60fd0685490ada4e7aab27b83fd10839f8f699488a25cf2e633abc2756bfb1b5