[INFO] cloning repository https://github.com/peguimasid/Rustlings-exercises [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/peguimasid/Rustlings-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeguimasid%2FRustlings-exercises", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeguimasid%2FRustlings-exercises'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] beea06137737ac6fc08ab7e541cbefd7bede2b44 [INFO] testing peguimasid/Rustlings-exercises/beea06137737ac6fc08ab7e541cbefd7bede2b44 against master#160e7623e8cbbf1feab2b6e2a24733a98c7bde9c for pr-145628 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpeguimasid%2FRustlings-exercises" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/peguimasid/Rustlings-exercises [INFO] finished tweaking git repo https://github.com/peguimasid/Rustlings-exercises [INFO] tweaked toml for git repo https://github.com/peguimasid/Rustlings-exercises written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/peguimasid/Rustlings-exercises on toolchain 160e7623e8cbbf1feab2b6e2a24733a98c7bde9c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/peguimasid/Rustlings-exercises 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" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded console v0.7.7 [INFO] [stderr] Downloaded indicatif v0.10.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 099897cb98217eced2c70918fde42c0db0332491b38957368e2729d2eb472965 [INFO] running `Command { std: "docker" "start" "-a" "099897cb98217eced2c70918fde42c0db0332491b38957368e2729d2eb472965", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "099897cb98217eced2c70918fde42c0db0332491b38957368e2729d2eb472965", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "099897cb98217eced2c70918fde42c0db0332491b38957368e2729d2eb472965", kill_on_drop: false }` [INFO] [stdout] 099897cb98217eced2c70918fde42c0db0332491b38957368e2729d2eb472965 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9a2a4c5d633956a3eff88df6255b311e270b17ec3e51b1affc338e306c6d9eb2 [INFO] running `Command { std: "docker" "start" "-a" "9a2a4c5d633956a3eff88df6255b311e270b17ec3e51b1affc338e306c6d9eb2", 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 memchr v2.4.1 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling instant v0.1.10 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling smallvec v1.6.1 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling lock_api v0.4.4 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling parking_lot_core v0.8.3 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling number_prefix v0.2.8 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling termios v0.3.3 [INFO] [stderr] Compiling clicolors-control v1.0.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling console v0.14.1 [INFO] [stderr] Compiling console v0.7.7 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling indicatif v0.10.3 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v4.6.0 (/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 32.86s [INFO] running `Command { std: "docker" "inspect" "9a2a4c5d633956a3eff88df6255b311e270b17ec3e51b1affc338e306c6d9eb2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a2a4c5d633956a3eff88df6255b311e270b17ec3e51b1affc338e306c6d9eb2", kill_on_drop: false }` [INFO] [stdout] 9a2a4c5d633956a3eff88df6255b311e270b17ec3e51b1affc338e306c6d9eb2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0409cd390a49fc843474d7d2a8421829fcafe9e5f8bad55e99312497adb3d1d1 [INFO] running `Command { std: "docker" "start" "-a" "0409cd390a49fc843474d7d2a8421829fcafe9e5f8bad55e99312497adb3d1d1", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling predicates-tree v1.0.3 [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 v1.0.8 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v4.6.0 (/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 6.52s [INFO] running `Command { std: "docker" "inspect" "0409cd390a49fc843474d7d2a8421829fcafe9e5f8bad55e99312497adb3d1d1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0409cd390a49fc843474d7d2a8421829fcafe9e5f8bad55e99312497adb3d1d1", kill_on_drop: false }` [INFO] [stdout] 0409cd390a49fc843474d7d2a8421829fcafe9e5f8bad55e99312497adb3d1d1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+160e7623e8cbbf1feab2b6e2a24733a98c7bde9c" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] dfffefb52d143250a5c5d56a17934948fafb97a7b88fa69f1e56374b35816377 [INFO] running `Command { std: "docker" "start" "-a" "dfffefb52d143250a5c5d56a17934948fafb97a7b88fa69f1e56374b35816377", 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"` 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 0.11s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-7390ecdb511260a9) [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' (17) 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: 0x61d202ab4842 - std::backtrace_rs::backtrace::libunwind::trace::hf3086ff3c8ddfec7 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x61d202ab4842 - std::backtrace_rs::backtrace::trace_unsynchronized::h6caf11542219ebc3 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x61d202ab4842 - std::sys::backtrace::_print_fmt::hfd9f352edf0ef63b [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x61d202ab4842 - ::fmt::h746cb25d4c2f20bf [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x61d202ac55df - core::fmt::rt::Argument::fmt::h7e560d1a4260d0bd [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x61d202ac55df - core::fmt::write::h51c104753c8435b2 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x61d202a81bb3 - std::io::default_write_fmt::h7681766be9629d2f [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x61d202a81bb3 - std::io::Write::write_fmt::h41771a141bf0adb2 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x61d202a8de12 - std::sys::backtrace::BacktraceLock::print::heee726a1c5b4a2c3 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x61d202a928bf - std::panicking::default_hook::{{closure}}::h938489fbb79d30ee [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x61d202a92751 - std::panicking::default_hook::hf7e155db98319366 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x61d20291b2ae - as core::ops::function::Fn>::call::h8041688d09537997 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 12: 0x61d20291b2ae - test::test_main_with_exit_callback::{{closure}}::hc8a7ea1f38432726 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x61d202a92f5e - as core::ops::function::Fn>::call::h688488cd0fff9b17 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 14: 0x61d202a92f5e - std::panicking::panic_with_hook::h78bb7329978b77c8 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x61d202a92d2a - std::panicking::panic_handler::{{closure}}::h306ab6080b8e304c [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x61d202a8df59 - std::sys::backtrace::__rust_end_short_backtrace::hab10906eec9c5584 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x61d202a75f4d - __rustc[31cdaa5515be9d95]::rust_begin_unwind [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x61d202acd990 - core::panicking::panic_fmt::h8cb2938d8e2b0e7b [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x61d202accdc6 - core::result::unwrap_failed::h781900d7f82db671 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/result.rs:1852:5 [INFO] [stdout] 20: 0x61d2028ed85c - core::result::Result::unwrap::h6466db016a3dea70 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/result.rs:1223:23 [INFO] [stdout] 21: 0x61d2028ed85c - rustlings::exercise::test::test_clean::h2a69c797a86cf3a6 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:270:36 [INFO] [stdout] 22: 0x61d2028edc27 - rustlings::exercise::test::test_clean::{{closure}}::h3192bcfb24aa90de [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:20 [INFO] [stdout] 23: 0x61d2028f1496 - core::ops::function::FnOnce::call_once::hda46babc50ff59fe [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 24: 0x61d20291b06b - core::ops::function::FnOnce::call_once::ha1081c2f5558e6c0 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 25: 0x61d20291b06b - test::__rust_begin_short_backtrace::h42034e8abb013a4c [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x61d202930b75 - test::run_test_in_process::{{closure}}::hf6d2134f58bf7650 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x61d202930b75 - as core::ops::function::FnOnce<()>>::call_once::hecbf148a08d929b4 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x61d202930b75 - std::panicking::catch_unwind::do_call::hdd8f84f296c52439 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x61d202930b75 - std::panicking::catch_unwind::h3fd77bcad74bf69c [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x61d202930b75 - std::panic::catch_unwind::h512ad17f65705767 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x61d202930b75 - test::run_test_in_process::h2b79c7cc828fafad [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x61d202930b75 - test::run_test::{{closure}}::hc287323e9e7aa380 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x61d202907544 - test::run_test::{{closure}}::h26852bc3095664f0 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x61d202907544 - std::sys::backtrace::__rust_begin_short_backtrace::he88c7ba58706034f [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x61d20290ad7a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hff63832735ca5300 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x61d20290ad7a - as core::ops::function::FnOnce<()>>::call_once::h5618784f23b8bacb [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x61d20290ad7a - std::panicking::catch_unwind::do_call::hd103d0697f7d2f72 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x61d20290ad7a - std::panicking::catch_unwind::h947b18413ee60fc2 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x61d20290ad7a - std::panic::catch_unwind::h51f47dbca8916fbf [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x61d20290ad7a - std::thread::Builder::spawn_unchecked_::{{closure}}::h92bd4fc7ba1a8896 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x61d20290ad7a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h1edf6ba5edb7a202 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 42: 0x61d202a8803f - as core::ops::function::FnOnce>::call_once::h6765fcdde4c5daa4 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 43: 0x61d202a8803f - std::sys::pal::unix::thread::Thread::new::thread_start::h448c4dadc391362b [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/sys/pal/unix/thread.rs:118:17 [INFO] [stdout] 44: 0x7e228ded4aa4 - [INFO] [stdout] 45: 0x7e228df61a34 - 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' (18) panicked at src/exercise.rs:343:38: [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/./rmetaCSqfHw\"\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: 0x61d202ab4842 - std::backtrace_rs::backtrace::libunwind::trace::hf3086ff3c8ddfec7 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x61d202ab4842 - std::backtrace_rs::backtrace::trace_unsynchronized::h6caf11542219ebc3 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x61d202ab4842 - std::sys::backtrace::_print_fmt::hfd9f352edf0ef63b [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x61d202ab4842 - ::fmt::h746cb25d4c2f20bf [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x61d202ac55df - core::fmt::rt::Argument::fmt::h7e560d1a4260d0bd [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x61d202ac55df - core::fmt::write::h51c104753c8435b2 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x61d202a81bb3 - std::io::default_write_fmt::h7681766be9629d2f [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x61d202a81bb3 - std::io::Write::write_fmt::h41771a141bf0adb2 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x61d202a8de12 - std::sys::backtrace::BacktraceLock::print::heee726a1c5b4a2c3 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x61d202a928bf - std::panicking::default_hook::{{closure}}::h938489fbb79d30ee [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x61d202a92751 - std::panicking::default_hook::hf7e155db98319366 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x61d20291b2ae - as core::ops::function::Fn>::call::h8041688d09537997 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 12: 0x61d20291b2ae - test::test_main_with_exit_callback::{{closure}}::hc8a7ea1f38432726 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x61d202a92f5e - as core::ops::function::Fn>::call::h688488cd0fff9b17 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 14: 0x61d202a92f5e - std::panicking::panic_with_hook::h78bb7329978b77c8 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x61d202a92d2a - std::panicking::panic_handler::{{closure}}::h306ab6080b8e304c [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x61d202a8df59 - std::sys::backtrace::__rust_end_short_backtrace::hab10906eec9c5584 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x61d202a75f4d - __rustc[31cdaa5515be9d95]::rust_begin_unwind [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x61d202acd990 - core::panicking::panic_fmt::h8cb2938d8e2b0e7b [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x61d202accdc6 - core::result::unwrap_failed::h781900d7f82db671 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/result.rs:1852:5 [INFO] [stdout] 20: 0x61d2028ee684 - core::result::Result::unwrap::h0a30a6ba81adbd25 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/result.rs:1223:23 [INFO] [stdout] 21: 0x61d2028ee684 - rustlings::exercise::test::test_exercise_with_output::h25078b9310684fa9 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:343:38 [INFO] [stdout] 22: 0x61d2028ee907 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h08fb8745121b590d [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:336:35 [INFO] [stdout] 23: 0x61d2028f14d6 - core::ops::function::FnOnce::call_once::hf9142f90c90aa661 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 24: 0x61d20291b06b - core::ops::function::FnOnce::call_once::ha1081c2f5558e6c0 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 25: 0x61d20291b06b - test::__rust_begin_short_backtrace::h42034e8abb013a4c [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x61d202930b75 - test::run_test_in_process::{{closure}}::hf6d2134f58bf7650 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x61d202930b75 - as core::ops::function::FnOnce<()>>::call_once::hecbf148a08d929b4 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x61d202930b75 - std::panicking::catch_unwind::do_call::hdd8f84f296c52439 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x61d202930b75 - std::panicking::catch_unwind::h3fd77bcad74bf69c [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x61d202930b75 - std::panic::catch_unwind::h512ad17f65705767 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x61d202930b75 - test::run_test_in_process::h2b79c7cc828fafad [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x61d202930b75 - test::run_test::{{closure}}::hc287323e9e7aa380 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x61d202907544 - test::run_test::{{closure}}::h26852bc3095664f0 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x61d202907544 - std::sys::backtrace::__rust_begin_short_backtrace::he88c7ba58706034f [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x61d20290ad7a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hff63832735ca5300 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x61d20290ad7a - as core::ops::function::FnOnce<()>>::call_once::h5618784f23b8bacb [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x61d20290ad7a - std::panicking::catch_unwind::do_call::hd103d0697f7d2f72 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x61d20290ad7a - std::panicking::catch_unwind::h947b18413ee60fc2 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x61d20290ad7a - std::panic::catch_unwind::h51f47dbca8916fbf [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x61d20290ad7a - std::thread::Builder::spawn_unchecked_::{{closure}}::h92bd4fc7ba1a8896 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x61d20290ad7a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h1edf6ba5edb7a202 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 42: 0x61d202a8803f - as core::ops::function::FnOnce>::call_once::h6765fcdde4c5daa4 [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 43: 0x61d202a8803f - std::sys::pal::unix::thread::Thread::new::thread_start::h448c4dadc391362b [INFO] [stdout] at /rustc/160e7623e8cbbf1feab2b6e2a24733a98c7bde9c/library/std/src/sys/pal/unix/thread.rs:118:17 [INFO] [stdout] 44: 0x7e228ded4aa4 - [INFO] [stdout] 45: 0x7e228df61a34 - 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 0.16s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "dfffefb52d143250a5c5d56a17934948fafb97a7b88fa69f1e56374b35816377", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dfffefb52d143250a5c5d56a17934948fafb97a7b88fa69f1e56374b35816377", kill_on_drop: false }` [INFO] [stdout] dfffefb52d143250a5c5d56a17934948fafb97a7b88fa69f1e56374b35816377