[INFO] cloning repository https://github.com/travispchen/rustlings_solutions [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/travispchen/rustlings_solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftravispchen%2Frustlings_solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftravispchen%2Frustlings_solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fbd0a658ce2a2824e88edbcbfcd7c3e71d82ad97 [INFO] testing travispchen/rustlings_solutions against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftravispchen%2Frustlings_solutions" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/travispchen/rustlings_solutions [INFO] finished tweaking git repo https://github.com/travispchen/rustlings_solutions [INFO] tweaked toml for git repo https://github.com/travispchen/rustlings_solutions written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/travispchen/rustlings_solutions on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/travispchen/rustlings_solutions 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded terminal_size v0.1.16 [INFO] [stderr] Downloaded console v0.14.1 [INFO] [stderr] Downloaded number_prefix v0.2.8 [INFO] [stderr] Downloaded predicates-core v1.0.2 [INFO] [stderr] Downloaded predicates-tree v1.0.2 [INFO] [stderr] Downloaded argh_shared v0.1.4 [INFO] [stderr] Downloaded clicolors-control v1.0.1 [INFO] [stderr] Downloaded console v0.7.7 [INFO] [stderr] Downloaded argh_derive v0.1.4 [INFO] [stderr] Downloaded argh v0.1.4 [INFO] [stderr] Downloaded termios v0.3.3 [INFO] [stderr] Downloaded escargot v0.4.0 [INFO] [stderr] Downloaded assert_cmd v0.11.1 [INFO] [stderr] Downloaded indicatif v0.10.3 [INFO] [stderr] Downloaded regex v1.4.6 [INFO] [stderr] Downloaded notify v4.0.16 [INFO] [stderr] Downloaded slab v0.4.3 [INFO] [stderr] Downloaded predicates v1.0.7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 08d368edf26f3d434fa50da1f03d89eb55d2d2b5ed74b338c6d37eb0bf246bf3 [INFO] running `Command { std: "docker" "start" "-a" "08d368edf26f3d434fa50da1f03d89eb55d2d2b5ed74b338c6d37eb0bf246bf3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "08d368edf26f3d434fa50da1f03d89eb55d2d2b5ed74b338c6d37eb0bf246bf3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "08d368edf26f3d434fa50da1f03d89eb55d2d2b5ed74b338c6d37eb0bf246bf3", kill_on_drop: false }` [INFO] [stdout] 08d368edf26f3d434fa50da1f03d89eb55d2d2b5ed74b338c6d37eb0bf246bf3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 70fcbe0c52f057ffd0af443605ce531f1776eb1ddfb725788555da09e81dc9eb [INFO] running `Command { std: "docker" "start" "-a" "70fcbe0c52f057ffd0af443605ce531f1776eb1ddfb725788555da09e81dc9eb", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.93 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling syn v1.0.70 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling instant v0.1.9 [INFO] [stderr] Compiling smallvec v1.6.1 [INFO] [stderr] Compiling serde_derive v1.0.125 [INFO] [stderr] Compiling regex-syntax v0.6.23 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling lock_api v0.4.3 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling slab v0.4.3 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling argh_shared v0.1.4 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Compiling aho-corasick v0.7.15 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling parking_lot_core v0.8.3 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling terminal_size v0.1.16 [INFO] [stderr] Compiling filetime v0.2.14 [INFO] [stderr] Compiling termios v0.3.3 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling clicolors-control v1.0.1 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling number_prefix v0.2.8 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.16 [INFO] [stderr] Compiling regex v1.4.6 [INFO] [stderr] Compiling console v0.14.1 [INFO] [stderr] Compiling console v0.7.7 [INFO] [stderr] Compiling argh_derive v0.1.4 [INFO] [stderr] Compiling indicatif v0.10.3 [INFO] [stderr] Compiling argh v0.1.4 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v4.5.0 (/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 19.22s [INFO] running `Command { std: "docker" "inspect" "70fcbe0c52f057ffd0af443605ce531f1776eb1ddfb725788555da09e81dc9eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "70fcbe0c52f057ffd0af443605ce531f1776eb1ddfb725788555da09e81dc9eb", kill_on_drop: false }` [INFO] [stdout] 70fcbe0c52f057ffd0af443605ce531f1776eb1ddfb725788555da09e81dc9eb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4a13ffa32a7d9a23b84357b97ecde845d38d774589dc54ed2d39bd7682349e54 [INFO] running `Command { std: "docker" "start" "-a" "4a13ffa32a7d9a23b84357b97ecde845d38d774589dc54ed2d39bd7682349e54", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling itoa v0.4.7 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling glob 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 v1.0.7 [INFO] [stderr] Compiling predicates-tree v1.0.2 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v4.5.0 (/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 4.70s [INFO] running `Command { std: "docker" "inspect" "4a13ffa32a7d9a23b84357b97ecde845d38d774589dc54ed2d39bd7682349e54", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a13ffa32a7d9a23b84357b97ecde845d38d774589dc54ed2d39bd7682349e54", kill_on_drop: false }` [INFO] [stdout] 4a13ffa32a7d9a23b84357b97ecde845d38d774589dc54ed2d39bd7682349e54 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 2fba3833adb966bbe27ea09256c880e0c1cdf0338a6c929f459c5bc586ea8184 [INFO] running `Command { std: "docker" "start" "-a" "2fba3833adb966bbe27ea09256c880e0c1cdf0338a6c929f459c5bc586ea8184", 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 0.15s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-d4b0b031fc6def33) [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' (25) panicked at src/exercise.rs:270:36: [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: 0x597f85134992 - std::backtrace_rs::backtrace::libunwind::trace::ha50a1f28c7a10cf8 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x597f85134992 - std::backtrace_rs::backtrace::trace_unsynchronized::h34f8c4ec82a320bc [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x597f85134992 - std::sys::backtrace::_print_fmt::h2d23e84e13d343bc [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x597f85134992 - ::fmt::hde21067283f7e82e [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x597f851453cf - core::fmt::rt::Argument::fmt::he65307037dca33c6 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x597f851453cf - core::fmt::write::h24186904251c31cb [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/fmt/mod.rs:1469:25 [INFO] [stdout] 6: 0x597f851021a3 - std::io::default_write_fmt::h4e8d11c5c4b9cafe [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x597f851021a3 - std::io::Write::write_fmt::ha849be0824d095ef [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x597f8510e052 - std::sys::backtrace::BacktraceLock::print::he038489aba5894a6 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x597f85112bdf - std::panicking::default_hook::{{closure}}::h80a26d916c49679b [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x597f85112a71 - std::panicking::default_hook::he2e9efee79b3dce9 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x597f84fad0fe - as core::ops::function::Fn>::call::h202f496763929329 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/alloc/src/boxed.rs:2099:9 [INFO] [stdout] 12: 0x597f84fad0fe - test::test_main_with_exit_callback::{{closure}}::h805a6913adddaea3 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x597f851131ef - as core::ops::function::Fn>::call::h2883c9d2dbd4e81c [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/alloc/src/boxed.rs:2099:9 [INFO] [stdout] 14: 0x597f851131ef - std::panicking::panic_with_hook::hf5648b7cec6bc73e [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x597f8511304a - std::panicking::panic_handler::{{closure}}::h1b2ed3864ba94359 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x597f8510e199 - std::sys::backtrace::__rust_end_short_backtrace::hd0186b2b27f5aaa7 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x597f850f66ad - __rustc[f7dae8b92efe1d7a]::rust_begin_unwind [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x597f8514d710 - core::panicking::panic_fmt::hb5d6b83773432920 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/panicking.rs:80:14 [INFO] [stdout] 19: 0x597f8514cb16 - core::result::unwrap_failed::h427ee4a8bb06d8af [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/result.rs:1862:5 [INFO] [stdout] 20: 0x597f84f81a3c - core::result::Result::unwrap::ha5d1b8afbaf648ed [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/result.rs:1233:23 [INFO] [stdout] 21: 0x597f84f81a3c - rustlings::exercise::test::test_clean::h08161cb24ad60277 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:270:36 [INFO] [stdout] 22: 0x597f84f81e17 - rustlings::exercise::test::test_clean::{{closure}}::he8abd76e0d0a5ad3 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:20 [INFO] [stdout] 23: 0x597f84f84c46 - core::ops::function::FnOnce::call_once::h4aa949c5fbde2bc7 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x597f84facf6b - core::ops::function::FnOnce::call_once::h3a2d82edd1a9b770 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x597f84facf6b - test::__rust_begin_short_backtrace::h85d4fe5033219107 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x597f84fc0f5d - test::run_test_in_process::{{closure}}::h67b48a81b9c9d7b6 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x597f84fc0f5d - as core::ops::function::FnOnce<()>>::call_once::h7680585480377cb5 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x597f84fc0f5d - std::panicking::catch_unwind::do_call::hf71351b2657d4002 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x597f84fc0f5d - std::panicking::catch_unwind::h7fcb5c0312d9e172 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x597f84fc0f5d - std::panic::catch_unwind::h5cf3c9bdee894ebe [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x597f84fc0f5d - test::run_test_in_process::h1469cb85193a3a25 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x597f84fc0f5d - test::run_test::{{closure}}::h59d45b3cd6453d69 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x597f84f9a4a4 - test::run_test::{{closure}}::h9baa0c3d443f28c9 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x597f84f9a4a4 - std::sys::backtrace::__rust_begin_short_backtrace::h97ea8cee4828663e [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x597f84f9dcfa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h5d7539d5f78cee61 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/thread/mod.rs:562:17 [INFO] [stdout] 36: 0x597f84f9dcfa - as core::ops::function::FnOnce<()>>::call_once::he4c551e23c5e9b22 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x597f84f9dcfa - std::panicking::catch_unwind::do_call::h522b41a6c157aaba [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x597f84f9dcfa - std::panicking::catch_unwind::h0efbf72006b8e365 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x597f84f9dcfa - std::panic::catch_unwind::h3b081041e6c97066 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x597f84f9dcfa - std::thread::Builder::spawn_unchecked_::{{closure}}::ha751309815d5d8cf [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/thread/mod.rs:560:30 [INFO] [stdout] 41: 0x597f84f9dcfa - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2084b887a5fe25a7 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x597f851094af - as core::ops::function::FnOnce>::call_once::h3adbd6ccf5f737af [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/alloc/src/boxed.rs:2085:9 [INFO] [stdout] 43: 0x597f851094af - std::sys::thread::unix::Thread::new::thread_start::hb3dc6483caa1b987 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/thread/unix.rs:124:17 [INFO] [stdout] 44: 0x7cff7b7ccaa4 - [INFO] [stdout] 45: 0x7cff7b859a64 - 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:343:38: [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/./rmetatDBWDB\"\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: 0x597f85134992 - std::backtrace_rs::backtrace::libunwind::trace::ha50a1f28c7a10cf8 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x597f85134992 - std::backtrace_rs::backtrace::trace_unsynchronized::h34f8c4ec82a320bc [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x597f85134992 - std::sys::backtrace::_print_fmt::h2d23e84e13d343bc [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x597f85134992 - ::fmt::hde21067283f7e82e [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x597f851453cf - core::fmt::rt::Argument::fmt::he65307037dca33c6 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x597f851453cf - core::fmt::write::h24186904251c31cb [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/fmt/mod.rs:1469:25 [INFO] [stdout] 6: 0x597f851021a3 - std::io::default_write_fmt::h4e8d11c5c4b9cafe [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x597f851021a3 - std::io::Write::write_fmt::ha849be0824d095ef [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x597f8510e052 - std::sys::backtrace::BacktraceLock::print::he038489aba5894a6 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x597f85112bdf - std::panicking::default_hook::{{closure}}::h80a26d916c49679b [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x597f85112a71 - std::panicking::default_hook::he2e9efee79b3dce9 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x597f84fad0fe - as core::ops::function::Fn>::call::h202f496763929329 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/alloc/src/boxed.rs:2099:9 [INFO] [stdout] 12: 0x597f84fad0fe - test::test_main_with_exit_callback::{{closure}}::h805a6913adddaea3 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x597f851131ef - as core::ops::function::Fn>::call::h2883c9d2dbd4e81c [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/alloc/src/boxed.rs:2099:9 [INFO] [stdout] 14: 0x597f851131ef - std::panicking::panic_with_hook::hf5648b7cec6bc73e [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x597f8511304a - std::panicking::panic_handler::{{closure}}::h1b2ed3864ba94359 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x597f8510e199 - std::sys::backtrace::__rust_end_short_backtrace::hd0186b2b27f5aaa7 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x597f850f66ad - __rustc[f7dae8b92efe1d7a]::rust_begin_unwind [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x597f8514d710 - core::panicking::panic_fmt::hb5d6b83773432920 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/panicking.rs:80:14 [INFO] [stdout] 19: 0x597f8514cb16 - core::result::unwrap_failed::h427ee4a8bb06d8af [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/result.rs:1862:5 [INFO] [stdout] 20: 0x597f84f82874 - core::result::Result::unwrap::hb797374b8f81a2d3 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/result.rs:1233:23 [INFO] [stdout] 21: 0x597f84f82874 - rustlings::exercise::test::test_exercise_with_output::hc67da2745dc71c4b [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:343:38 [INFO] [stdout] 22: 0x597f84f82af7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h2165dc1124df5ac2 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:336:35 [INFO] [stdout] 23: 0x597f84f84c06 - core::ops::function::FnOnce::call_once::h426c0b04ca24efba [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x597f84facf6b - core::ops::function::FnOnce::call_once::h3a2d82edd1a9b770 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x597f84facf6b - test::__rust_begin_short_backtrace::h85d4fe5033219107 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x597f84fc0f5d - test::run_test_in_process::{{closure}}::h67b48a81b9c9d7b6 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x597f84fc0f5d - as core::ops::function::FnOnce<()>>::call_once::h7680585480377cb5 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x597f84fc0f5d - std::panicking::catch_unwind::do_call::hf71351b2657d4002 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x597f84fc0f5d - std::panicking::catch_unwind::h7fcb5c0312d9e172 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x597f84fc0f5d - std::panic::catch_unwind::h5cf3c9bdee894ebe [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x597f84fc0f5d - test::run_test_in_process::h1469cb85193a3a25 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x597f84fc0f5d - test::run_test::{{closure}}::h59d45b3cd6453d69 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x597f84f9a4a4 - test::run_test::{{closure}}::h9baa0c3d443f28c9 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x597f84f9a4a4 - std::sys::backtrace::__rust_begin_short_backtrace::h97ea8cee4828663e [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x597f84f9dcfa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h5d7539d5f78cee61 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/thread/mod.rs:562:17 [INFO] [stdout] 36: 0x597f84f9dcfa - as core::ops::function::FnOnce<()>>::call_once::he4c551e23c5e9b22 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x597f84f9dcfa - std::panicking::catch_unwind::do_call::h522b41a6c157aaba [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x597f84f9dcfa - std::panicking::catch_unwind::h0efbf72006b8e365 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x597f84f9dcfa - std::panic::catch_unwind::h3b081041e6c97066 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x597f84f9dcfa - std::thread::Builder::spawn_unchecked_::{{closure}}::ha751309815d5d8cf [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/thread/mod.rs:560:30 [INFO] [stdout] 41: 0x597f84f9dcfa - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2084b887a5fe25a7 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x597f851094af - as core::ops::function::FnOnce>::call_once::h3adbd6ccf5f737af [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/alloc/src/boxed.rs:2085:9 [INFO] [stdout] 43: 0x597f851094af - std::sys::thread::unix::Thread::new::thread_start::hb3dc6483caa1b987 [INFO] [stdout] at /rustc/c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38/library/std/src/sys/thread/unix.rs:124:17 [INFO] [stdout] 44: 0x7cff7b7ccaa4 - [INFO] [stdout] 45: 0x7cff7b859a64 - 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 0.07s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "2fba3833adb966bbe27ea09256c880e0c1cdf0338a6c929f459c5bc586ea8184", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2fba3833adb966bbe27ea09256c880e0c1cdf0338a6c929f459c5bc586ea8184", kill_on_drop: false }` [INFO] [stdout] 2fba3833adb966bbe27ea09256c880e0c1cdf0338a6c929f459c5bc586ea8184