[INFO] cloning repository https://github.com/luccanunes/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/luccanunes/rustlings-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluccanunes%2Frustlings-solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluccanunes%2Frustlings-solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fb0b53ce598fc7f6604562ea2f7514b86bd983ed [INFO] testing luccanunes/rustlings-solutions against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fluccanunes%2Frustlings-solutions" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/luccanunes/rustlings-solutions [INFO] finished tweaking git repo https://github.com/luccanunes/rustlings-solutions [INFO] tweaked toml for git repo https://github.com/luccanunes/rustlings-solutions written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/luccanunes/rustlings-solutions on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/luccanunes/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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded predicates v3.1.0 [INFO] [stderr] Downloaded notify-debouncer-mini v0.4.1 [INFO] [stderr] Downloaded assert_cmd v2.0.14 [INFO] [stderr] Downloaded kqueue v1.0.8 [INFO] [stderr] Downloaded serde_derive v1.0.198 [INFO] [stderr] Downloaded serde v1.0.198 [INFO] [stderr] Downloaded notify v6.1.1 [INFO] [stderr] Downloaded float-cmp v0.9.0 [INFO] [stderr] Downloaded toml_edit v0.22.11 [INFO] [stderr] Downloaded which v6.0.1 [INFO] [stderr] Downloaded winnow v0.6.6 [INFO] [stderr] Downloaded bstr v1.9.1 [INFO] [stderr] Downloaded winsafe v0.0.19 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fb65073257d1ffae76986a0a02b5948c13f905f42e24a9898b372847a2cb901c [INFO] running `Command { std: "docker" "start" "-a" "fb65073257d1ffae76986a0a02b5948c13f905f42e24a9898b372847a2cb901c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fb65073257d1ffae76986a0a02b5948c13f905f42e24a9898b372847a2cb901c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fb65073257d1ffae76986a0a02b5948c13f905f42e24a9898b372847a2cb901c", kill_on_drop: false }` [INFO] [stdout] fb65073257d1ffae76986a0a02b5948c13f905f42e24a9898b372847a2cb901c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 40973d49dcaa6aa94b4fcee3ba1cbd3f0df8a5c1f2b6bf16cf0cad9f39d78689 [INFO] running `Command { std: "docker" "start" "-a" "40973d49dcaa6aa94b4fcee3ba1cbd3f0df8a5c1f2b6bf16cf0cad9f39d78689", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.81 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling serde v1.0.198 [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Compiling utf8parse v0.2.1 [INFO] [stderr] Compiling anstyle-query v1.0.2 [INFO] [stderr] Compiling log v0.4.21 [INFO] [stderr] Compiling colorchoice v1.0.0 [INFO] [stderr] Compiling rustix v0.38.32 [INFO] [stderr] Compiling anstyle v1.0.6 [INFO] [stderr] Compiling portable-atomic v1.6.0 [INFO] [stderr] Compiling bitflags v2.5.0 [INFO] [stderr] Compiling walkdir v2.5.0 [INFO] [stderr] Compiling hashbrown v0.14.3 [INFO] [stderr] Compiling serde_json v1.0.116 [INFO] [stderr] Compiling anyhow v1.0.82 [INFO] [stderr] Compiling anstyle-parse v0.2.3 [INFO] [stderr] Compiling clap_lex v0.7.0 [INFO] [stderr] Compiling linux-raw-sys v0.4.13 [INFO] [stderr] Compiling unicode-width v0.1.11 [INFO] [stderr] Compiling either v1.11.0 [INFO] [stderr] Compiling home v0.5.9 [INFO] [stderr] Compiling winnow v0.6.6 [INFO] [stderr] Compiling itoa v1.0.11 [INFO] [stderr] Compiling ryu v1.0.17 [INFO] [stderr] Compiling anstream v0.6.13 [INFO] [stderr] Compiling shlex v1.3.0 [INFO] [stderr] Compiling indexmap v2.2.6 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Compiling clap_builder v4.5.2 [INFO] [stderr] Compiling syn v2.0.60 [INFO] [stderr] Compiling crossbeam-channel v0.5.12 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling mio v0.8.11 [INFO] [stderr] Compiling filetime v0.2.23 [INFO] [stderr] Compiling console v0.15.8 [INFO] [stderr] Compiling inotify v0.9.6 [INFO] [stderr] Compiling notify v6.1.1 [INFO] [stderr] Compiling indicatif v0.17.8 [INFO] [stderr] Compiling notify-debouncer-mini v0.4.1 [INFO] [stderr] Compiling which v6.0.1 [INFO] [stderr] Compiling serde_derive v1.0.198 [INFO] [stderr] Compiling clap_derive v4.5.4 [INFO] [stderr] Compiling clap v4.5.4 [INFO] [stderr] Compiling serde_spanned v0.6.5 [INFO] [stderr] Compiling toml_datetime v0.6.5 [INFO] [stderr] Compiling toml_edit v0.22.11 [INFO] [stderr] Compiling rustlings v5.6.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:125:20 [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.73s [INFO] running `Command { std: "docker" "inspect" "40973d49dcaa6aa94b4fcee3ba1cbd3f0df8a5c1f2b6bf16cf0cad9f39d78689", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "40973d49dcaa6aa94b4fcee3ba1cbd3f0df8a5c1f2b6bf16cf0cad9f39d78689", kill_on_drop: false }` [INFO] [stdout] 40973d49dcaa6aa94b4fcee3ba1cbd3f0df8a5c1f2b6bf16cf0cad9f39d78689 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] d7acd1fcc075c8cebfd6da0b096d71a320a72ec2eaf5e1656c32373f98aba256 [INFO] running `Command { std: "docker" "start" "-a" "d7acd1fcc075c8cebfd6da0b096d71a320a72ec2eaf5e1656c32373f98aba256", kill_on_drop: false }` [INFO] [stderr] Compiling memchr v2.7.2 [INFO] [stderr] Compiling autocfg v1.2.0 [INFO] [stderr] Compiling regex-syntax v0.8.3 [INFO] [stderr] Compiling predicates-core v1.0.6 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Compiling assert_cmd v2.0.14 [INFO] [stderr] Compiling difflib v0.4.0 [INFO] [stderr] Compiling termtree v0.4.1 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling wait-timeout v0.2.0 [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:125:20 [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling predicates-tree v1.0.9 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling aho-corasick v1.1.3 [INFO] [stderr] Compiling float-cmp v0.9.0 [INFO] [stderr] Compiling regex-automata v0.4.6 [INFO] [stderr] Compiling regex v1.10.4 [INFO] [stderr] Compiling bstr v1.9.1 [INFO] [stderr] Compiling predicates v3.1.0 [INFO] [stderr] Compiling rustlings v5.6.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:125:20 [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 12.07s [INFO] running `Command { std: "docker" "inspect" "d7acd1fcc075c8cebfd6da0b096d71a320a72ec2eaf5e1656c32373f98aba256", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d7acd1fcc075c8cebfd6da0b096d71a320a72ec2eaf5e1656c32373f98aba256", kill_on_drop: false }` [INFO] [stdout] d7acd1fcc075c8cebfd6da0b096d71a320a72ec2eaf5e1656c32373f98aba256 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] a8afc8c395fadf4e865e57222afa5819ea32b48c7945a8925ec05da736073f25 [INFO] running `Command { std: "docker" "start" "-a" "a8afc8c395fadf4e865e57222afa5819ea32b48c7945a8925ec05da736073f25", kill_on_drop: false }` [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/exercise.rs:125:20 [INFO] [stderr] | [INFO] [stderr] 125 | pub fn compile(&self) -> Result { [INFO] [stderr] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 125 | 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 0.19s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/rustlings-2002ef649e8f7817) [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test exercise::test::test_not_done ... ok [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' panicked at src/exercise.rs:354:35: [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: 0x738929e131c2 - std::backtrace_rs::backtrace::libunwind::trace::h559918daaaf51ab7 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x738929e131c2 - std::backtrace_rs::backtrace::trace_unsynchronized::hb04fbcf80d07af8b [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x738929e131c2 - std::sys::backtrace::_print_fmt::h7c0bbbbfac0065d4 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x738929e131c2 - ::fmt::hb62c8ed31943daa5 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x738929e4d593 - core::fmt::rt::Argument::fmt::he5eaa7dd607ed4c9 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x738929e4d593 - core::fmt::write::h375399f8cb90b45a [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/fmt/mod.rs:1460:25 [INFO] [stdout] 6: 0x738929e103d3 - std::io::default_write_fmt::hdc1b4dd565dd0099 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x738929e103d3 - std::io::Write::write_fmt::h29f6044e9bc43c23 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x738929e13012 - std::sys::backtrace::BacktraceLock::print::ha189c586374f916a [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x738929e1483c - std::panicking::default_hook::{{closure}}::ha3a26c98ff210e12 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:300:27 [INFO] [stdout] 10: 0x738929e14692 - std::panicking::default_hook::h8c8a86b4390ab794 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x738929dd52a4 - as core::ops::function::Fn>::call::ha39ae63ed1e9a130 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x738929dd52a4 - test::test_main_with_exit_callback::{{closure}}::h9df7c328ebe18c28 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x738929e151c3 - as core::ops::function::Fn>::call::h96b7201b552e9069 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x738929e151c3 - std::panicking::rust_panic_with_hook::hb3b66c2e80efa371 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x738929e14f8a - std::panicking::begin_panic_handler::{{closure}}::h9c68d0f839e62070 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x738929e136b9 - std::sys::backtrace::__rust_end_short_backtrace::h68d22ddde4a73ad6 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x738929e14c1d - __rustc[f4ffc7196a45a630]::rust_begin_unwind [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x738929d88ec0 - core::panicking::panic_fmt::h8cdd4c81eb9069aa [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x738929d892f6 - core::result::unwrap_failed::h8476ffaa6db8205b [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/result.rs:1761:5 [INFO] [stdout] 20: 0x738929d99b34 - core::result::Result::unwrap::h92cd795c823d139e [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/result.rs:1167:23 [INFO] [stdout] 21: 0x738929d99b34 - rustlings::exercise::test::test_clean::h28e5cc7367312713 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:354:35 [INFO] [stdout] 22: 0x738929d99ab7 - rustlings::exercise::test::test_clean::{{closure}}::h38fb2eeea7c3f1c0 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:353:20 [INFO] [stdout] 23: 0x738929d961d6 - core::ops::function::FnOnce::call_once::h4e1cd85a40e4ba19 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x738929dda99b - core::ops::function::FnOnce::call_once::h9633dcf760ae81b2 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x738929dda99b - test::__rust_begin_short_backtrace::h12ad5e04c8d7b4a5 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/test/src/lib.rs:648:18 [INFO] [stdout] 26: 0x738929dd9c0e - test::run_test_in_process::{{closure}}::he596b4fd3fa4893c [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/test/src/lib.rs:671:74 [INFO] [stdout] 27: 0x738929dd9c0e - as core::ops::function::FnOnce<()>>::call_once::hc746bc3fa75190e0 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x738929dd9c0e - std::panicking::catch_unwind::do_call::hf4843906108d6299 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x738929dd9c0e - std::panicking::catch_unwind::h849d4e8b03577bb9 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x738929dd9c0e - std::panic::catch_unwind::ha1f814c1dec025d2 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x738929dd9c0e - test::run_test_in_process::h542aad3fe61255e7 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/test/src/lib.rs:671:27 [INFO] [stdout] 32: 0x738929dd9c0e - test::run_test::{{closure}}::h612788d75908cb63 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/test/src/lib.rs:592:43 [INFO] [stdout] 33: 0x738929d9ea94 - test::run_test::{{closure}}::hbfeea3bcb7245123 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/test/src/lib.rs:622:41 [INFO] [stdout] 34: 0x738929d9ea94 - std::sys::backtrace::__rust_begin_short_backtrace::h72542b83b4f87d5b [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x738929da228a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hff26a7547ea762c9 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x738929da228a - as core::ops::function::FnOnce<()>>::call_once::hbee49bc759312884 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x738929da228a - std::panicking::catch_unwind::do_call::h61de12ce5e04e28f [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x738929da228a - std::panicking::catch_unwind::h454dd49873d22e18 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x738929da228a - std::panic::catch_unwind::h5c15187324f8cebb [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x738929da228a - std::thread::Builder::spawn_unchecked_::{{closure}}::hbc9d9c7427673d42 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x738929da228a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hefd458a129ddca13 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x738929e17c17 - as core::ops::function::FnOnce>::call_once::h2d6e2e526b02c3da [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x738929e17c17 - as core::ops::function::FnOnce>::call_once::h1aefced482b33c72 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x738929e17c17 - std::sys::pal::unix::thread::Thread::new::thread_start::h7c9c6951b48f721d [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/sys/pal/unix/thread.rs:97:17 [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'exercise::test::test_exercise_with_output' panicked at src/exercise.rs:445:38: [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/./rmetaocfwMd\"\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: 0x738929e131c2 - std::backtrace_rs::backtrace::libunwind::trace::h559918daaaf51ab7 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x738929e131c2 - std::backtrace_rs::backtrace::trace_unsynchronized::hb04fbcf80d07af8b [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x738929e131c2 - std::sys::backtrace::_print_fmt::h7c0bbbbfac0065d4 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x738929e131c2 - ::fmt::hb62c8ed31943daa5 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x738929e4d593 - core::fmt::rt::Argument::fmt::he5eaa7dd607ed4c9 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x738929e4d593 - core::fmt::write::h375399f8cb90b45a [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/fmt/mod.rs:1460:25 [INFO] [stdout] 6: 0x738929e103d3 - std::io::default_write_fmt::hdc1b4dd565dd0099 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x738929e103d3 - std::io::Write::write_fmt::h29f6044e9bc43c23 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x738929e13012 - std::sys::backtrace::BacktraceLock::print::ha189c586374f916a [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x738929e1483c - std::panicking::default_hook::{{closure}}::ha3a26c98ff210e12 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:300:27 [INFO] [stdout] 10: 0x738929e14692 - std::panicking::default_hook::h8c8a86b4390ab794 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x738929dd52a4 - as core::ops::function::Fn>::call::ha39ae63ed1e9a130 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x738929dd52a4 - test::test_main_with_exit_callback::{{closure}}::h9df7c328ebe18c28 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x738929e151c3 - as core::ops::function::Fn>::call::h96b7201b552e9069 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x738929e151c3 - std::panicking::rust_panic_with_hook::hb3b66c2e80efa371 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x738929e14f8a - std::panicking::begin_panic_handler::{{closure}}::h9c68d0f839e62070 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x738929e136b9 - std::sys::backtrace::__rust_end_short_backtrace::h68d22ddde4a73ad6 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x738929e14c1d - __rustc[f4ffc7196a45a630]::rust_begin_unwind [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x738929d88ec0 - core::panicking::panic_fmt::h8cdd4c81eb9069aa [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x738929d892f6 - core::result::unwrap_failed::h8476ffaa6db8205b [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/result.rs:1761:5 [INFO] [stdout] 20: 0x738929d9a9a2 - core::result::Result::unwrap::hc1073385ee8940cd [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/result.rs:1167:23 [INFO] [stdout] 21: 0x738929d9a9a2 - rustlings::exercise::test::test_exercise_with_output::ha867ae8e8a7b8c7b [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:445:38 [INFO] [stdout] 22: 0x738929d9a7a7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hf4f991e0bad369d8 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:438:35 [INFO] [stdout] 23: 0x738929d96266 - core::ops::function::FnOnce::call_once::hfb0aabf0aa12c07a [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x738929dda99b - core::ops::function::FnOnce::call_once::h9633dcf760ae81b2 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x738929dda99b - test::__rust_begin_short_backtrace::h12ad5e04c8d7b4a5 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/test/src/lib.rs:648:18 [INFO] [stdout] 26: 0x738929dd9c0e - test::run_test_in_process::{{closure}}::he596b4fd3fa4893c [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/test/src/lib.rs:671:74 [INFO] [stdout] 27: 0x738929dd9c0e - as core::ops::function::FnOnce<()>>::call_once::hc746bc3fa75190e0 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x738929dd9c0e - std::panicking::catch_unwind::do_call::hf4843906108d6299 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x738929dd9c0e - std::panicking::catch_unwind::h849d4e8b03577bb9 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x738929dd9c0e - std::panic::catch_unwind::ha1f814c1dec025d2 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x738929dd9c0e - test::run_test_in_process::h542aad3fe61255e7 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/test/src/lib.rs:671:27 [INFO] [stdout] 32: 0x738929dd9c0e - test::run_test::{{closure}}::h612788d75908cb63 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/test/src/lib.rs:592:43 [INFO] [stdout] 33: 0x738929d9ea94 - test::run_test::{{closure}}::hbfeea3bcb7245123 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/test/src/lib.rs:622:41 [INFO] [stdout] 34: 0x738929d9ea94 - std::sys::backtrace::__rust_begin_short_backtrace::h72542b83b4f87d5b [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x738929da228a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hff26a7547ea762c9 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x738929da228a - as core::ops::function::FnOnce<()>>::call_once::hbee49bc759312884 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x738929da228a - std::panicking::catch_unwind::do_call::h61de12ce5e04e28f [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x738929da228a - std::panicking::catch_unwind::h454dd49873d22e18 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x738929da228a - std::panic::catch_unwind::h5c15187324f8cebb [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x738929da228a - std::thread::Builder::spawn_unchecked_::{{closure}}::hbc9d9c7427673d42 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x738929da228a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hefd458a129ddca13 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x738929e17c17 - as core::ops::function::FnOnce>::call_once::h2d6e2e526b02c3da [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x738929e17c17 - as core::ops::function::FnOnce>::call_once::h1aefced482b33c72 [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x738929e17c17 - std::sys::pal::unix::thread::Thread::new::thread_start::h7c9c6951b48f721d [INFO] [stdout] at /rustc/8de4c7234dd9b97c9d76b58671343fdbbc9a433e/library/std/src/sys/pal/unix/thread.rs:97:17 [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. 3 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "a8afc8c395fadf4e865e57222afa5819ea32b48c7945a8925ec05da736073f25", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a8afc8c395fadf4e865e57222afa5819ea32b48c7945a8925ec05da736073f25", kill_on_drop: false }` [INFO] [stdout] a8afc8c395fadf4e865e57222afa5819ea32b48c7945a8925ec05da736073f25