[INFO] cloning repository https://github.com/kriskw1999/rutstling [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kriskw1999/rutstling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkriskw1999%2Frutstling", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkriskw1999%2Frutstling'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 47680613b4dd414d0c7967e63d9c450ad64a4f54 [INFO] testing kriskw1999/rutstling against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkriskw1999%2Frutstling" "/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/kriskw1999/rutstling [INFO] finished tweaking git repo https://github.com/kriskw1999/rutstling [INFO] tweaked toml for git repo https://github.com/kriskw1999/rutstling written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/kriskw1999/rutstling on toolchain caccb4d0368bd918ef6668af8e13834d07040417 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/kriskw1999/rutstling 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded errno v0.3.8 [INFO] [stderr] Downloaded which v6.0.1 [INFO] [stderr] Downloaded either v1.11.0 [INFO] [stderr] Downloaded predicates-tree v1.0.9 [INFO] [stderr] Downloaded anstyle-query v1.0.2 [INFO] [stderr] Downloaded anstyle-wincon v3.0.2 [INFO] [stderr] Downloaded anyhow v1.0.82 [INFO] [stderr] Downloaded proc-macro2 v1.0.81 [INFO] [stderr] Downloaded serde_derive v1.0.198 [INFO] [stderr] Downloaded crossbeam-channel v0.5.12 [INFO] [stderr] Downloaded toml_edit v0.22.11 [INFO] [stderr] Downloaded serde_json v1.0.116 [INFO] [stderr] Downloaded notify v6.1.1 [INFO] [stderr] Downloaded winnow v0.6.6 [INFO] [stderr] Downloaded syn v2.0.60 [INFO] [stderr] Downloaded assert_cmd v2.0.14 [INFO] [stderr] Downloaded anstyle-parse v0.2.3 [INFO] [stderr] Downloaded anstream v0.6.13 [INFO] [stderr] Downloaded indicatif v0.17.8 [INFO] [stderr] Downloaded bstr v1.9.1 [INFO] [stderr] Downloaded rustix v0.38.32 [INFO] [stderr] Downloaded predicates-core v1.0.6 [INFO] [stderr] Downloaded serde_spanned v0.6.5 [INFO] [stderr] Downloaded winsafe v0.0.19 [INFO] [stderr] Downloaded clap_derive v4.5.4 [INFO] [stderr] Downloaded kqueue v1.0.8 [INFO] [stderr] Downloaded notify-debouncer-mini v0.4.1 [INFO] [stderr] Downloaded anstyle v1.0.6 [INFO] [stderr] Downloaded predicates v3.1.0 [INFO] [stderr] Downloaded kqueue-sys v1.0.4 [INFO] [stderr] Downloaded linux-raw-sys v0.4.13 [INFO] [stderr] Downloaded serde v1.0.198 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e8b63210c94d21e4220afed868ea018c2caebf4b835eaa2368d3b41e0b32a021 [INFO] running `Command { std: "docker" "start" "-a" "e8b63210c94d21e4220afed868ea018c2caebf4b835eaa2368d3b41e0b32a021", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e8b63210c94d21e4220afed868ea018c2caebf4b835eaa2368d3b41e0b32a021", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e8b63210c94d21e4220afed868ea018c2caebf4b835eaa2368d3b41e0b32a021", kill_on_drop: false }` [INFO] [stdout] e8b63210c94d21e4220afed868ea018c2caebf4b835eaa2368d3b41e0b32a021 [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 8fb3ff1a2f407464832f590f64810ddde44d1e38d61e05ca71420c4979065d5f [INFO] running `Command { std: "docker" "start" "-a" "8fb3ff1a2f407464832f590f64810ddde44d1e38d61e05ca71420c4979065d5f", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.81 [INFO] [stderr] Compiling unicode-ident v1.0.12 [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 bitflags v1.3.2 [INFO] [stderr] Compiling anstyle v1.0.6 [INFO] [stderr] Compiling rustix v0.38.32 [INFO] [stderr] Compiling log v0.4.21 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling colorchoice v1.0.0 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling portable-atomic v1.6.0 [INFO] [stderr] Compiling hashbrown v0.14.3 [INFO] [stderr] Compiling walkdir v2.5.0 [INFO] [stderr] Compiling serde_json v1.0.116 [INFO] [stderr] Compiling linux-raw-sys v0.4.13 [INFO] [stderr] Compiling equivalent v1.0.1 [INFO] [stderr] Compiling heck v0.5.0 [INFO] [stderr] Compiling clap_lex v0.7.0 [INFO] [stderr] Compiling anstyle-parse v0.2.3 [INFO] [stderr] Compiling unicode-width v0.1.11 [INFO] [stderr] Compiling bitflags v2.5.0 [INFO] [stderr] Compiling anyhow v1.0.82 [INFO] [stderr] Compiling ryu v1.0.17 [INFO] [stderr] Compiling either v1.11.0 [INFO] [stderr] Compiling home v0.5.9 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling winnow v0.6.6 [INFO] [stderr] Compiling itoa v1.0.11 [INFO] [stderr] Compiling shlex v1.3.0 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Compiling syn v2.0.60 [INFO] [stderr] Compiling anstream v0.6.13 [INFO] [stderr] Compiling clap_builder v4.5.2 [INFO] [stderr] Compiling indexmap v2.2.6 [INFO] [stderr] Compiling crossbeam-channel v0.5.12 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling filetime v0.2.23 [INFO] [stderr] Compiling mio v0.8.11 [INFO] [stderr] Compiling console v0.15.8 [INFO] [stderr] Compiling inotify v0.9.6 [INFO] [stderr] Compiling indicatif v0.17.8 [INFO] [stderr] Compiling notify v6.1.1 [INFO] [stderr] Compiling which v6.0.1 [INFO] [stderr] Compiling notify-debouncer-mini v0.4.1 [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 toml_datetime v0.6.5 [INFO] [stderr] Compiling serde_spanned v0.6.5 [INFO] [stderr] Compiling toml_edit v0.22.11 [INFO] [stderr] Compiling rustlings v5.6.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:125:20 [INFO] [stdout] | [INFO] [stdout] 125 | 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] 125 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.76s [INFO] running `Command { std: "docker" "inspect" "8fb3ff1a2f407464832f590f64810ddde44d1e38d61e05ca71420c4979065d5f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8fb3ff1a2f407464832f590f64810ddde44d1e38d61e05ca71420c4979065d5f", kill_on_drop: false }` [INFO] [stdout] 8fb3ff1a2f407464832f590f64810ddde44d1e38d61e05ca71420c4979065d5f [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 642b93de116bf389a9e575cb1c0c0c6b5c0eeb7074f21e8955867d933360bd6c [INFO] running `Command { std: "docker" "start" "-a" "642b93de116bf389a9e575cb1c0c0c6b5c0eeb7074f21e8955867d933360bd6c", 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 doc-comment v0.3.3 [INFO] [stderr] Compiling predicates-core v1.0.6 [INFO] [stderr] Compiling difflib v0.4.0 [INFO] [stderr] Compiling termtree v0.4.1 [INFO] [stderr] Compiling assert_cmd v2.0.14 [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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:125:20 [INFO] [stdout] | [INFO] [stdout] 125 | 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] 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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:125:20 [INFO] [stdout] | [INFO] [stdout] 125 | 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] 125 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 6.62s [INFO] running `Command { std: "docker" "inspect" "642b93de116bf389a9e575cb1c0c0c6b5c0eeb7074f21e8955867d933360bd6c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "642b93de116bf389a9e575cb1c0c0c6b5c0eeb7074f21e8955867d933360bd6c", kill_on_drop: false }` [INFO] [stdout] 642b93de116bf389a9e575cb1c0c0c6b5c0eeb7074f21e8955867d933360bd6c [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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 80f809076c41e85c9f9833cfde5c6129c793088529e1b9223f5fed547bbb688f [INFO] running `Command { std: "docker" "start" "-a" "80f809076c41e85c9f9833cfde5c6129c793088529e1b9223f5fed547bbb688f", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/exercise.rs:125:20 [INFO] [stderr] | [INFO] [stderr] 125 | 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] 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 0.11s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-21c992614d472beb) [INFO] [stdout] [INFO] [stdout] running 5 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_not_done ... 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: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: 0x629b21ab5a22 - std::backtrace_rs::backtrace::libunwind::trace::h76861be37b31432e [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x629b21ab5a22 - std::backtrace_rs::backtrace::trace_unsynchronized::h58d4003082192c17 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x629b21ab5a22 - std::sys::backtrace::_print_fmt::hfe5857a399620d2a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x629b21ab5a22 - ::fmt::h52160e9da139e442 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x629b21ac5ddf - core::fmt::rt::Argument::fmt::h66fe6fef9ecca14a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x629b21ac5ddf - core::fmt::write::hf09a056a304e021a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x629b21a82661 - std::io::default_write_fmt::hf1a3645468226e09 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x629b21a82661 - std::io::Write::write_fmt::ha5ada6d6a18bde33 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x629b21a8e9b2 - std::sys::backtrace::BacktraceLock::print::h15104dbcf0fd1f14 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x629b21a9364f - std::panicking::default_hook::{{closure}}::h0fa6cd8dbe0dd76b [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x629b21a934e1 - std::panicking::default_hook::h8d20506cf72e4831 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x629b21a4730e - as core::ops::function::Fn>::call::h3d020961abd83a77 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/alloc/src/boxed.rs:1987:9 [INFO] [stdout] 12: 0x629b21a4730e - test::test_main_with_exit_callback::{{closure}}::h720dd2fdb2ddcdca [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x629b21a93d0f - as core::ops::function::Fn>::call::h75334a5fed245bca [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/alloc/src/boxed.rs:1987:9 [INFO] [stdout] 14: 0x629b21a93d0f - std::panicking::panic_with_hook::h746880a052e02c85 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x629b21a93b6a - std::panicking::panic_handler::{{closure}}::h14b95830f89d14b3 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x629b21a8eae9 - std::sys::backtrace::__rust_end_short_backtrace::h7ddaac0e9609a83d [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x629b21a769ad - __rustc[76f7e7187978e2f8]::rust_begin_unwind [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x629b21acdad0 - core::panicking::panic_fmt::heb245a301f4395db [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/panicking.rs:78:14 [INFO] [stdout] 19: 0x629b21accf66 - core::result::unwrap_failed::h91bd1e1731f928fc [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/result.rs:1855:5 [INFO] [stdout] 20: 0x629b21a1db94 - core::result::Result::unwrap::h994df30503889c79 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/result.rs:1226:23 [INFO] [stdout] 21: 0x629b21a1db94 - rustlings::exercise::test::test_clean::h87f7fd2f1f1f76c6 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:354:35 [INFO] [stdout] 22: 0x629b21a1df47 - rustlings::exercise::test::test_clean::{{closure}}::he62e7d97cc347494 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:353:20 [INFO] [stdout] 23: 0x629b21a11196 - core::ops::function::FnOnce::call_once::h020dbe72618575a7 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x629b21a4713b - core::ops::function::FnOnce::call_once::h933a5d67211adff2 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x629b21a4713b - test::__rust_begin_short_backtrace::h2157af19b0990ffb [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x629b21a5cd15 - test::run_test_in_process::{{closure}}::hc3b17e0f313c900a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x629b21a5cd15 - as core::ops::function::FnOnce<()>>::call_once::ha23e4b490259273c [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x629b21a5cd15 - std::panicking::catch_unwind::do_call::h8dc9d5da83792f7a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x629b21a5cd15 - std::panicking::catch_unwind::h0d8461330de4a18b [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x629b21a5cd15 - std::panic::catch_unwind::h0321b51397bf9811 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x629b21a5cd15 - test::run_test_in_process::hcaaa440fdbe4a513 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x629b21a5cd15 - test::run_test::{{closure}}::h6345da602b85d6c3 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x629b21a33524 - test::run_test::{{closure}}::h90a3b75194d37b5d [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x629b21a33524 - std::sys::backtrace::__rust_begin_short_backtrace::hae41a17001f53ede [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x629b21a36dea - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h6ea895368381e0b1 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x629b21a36dea - as core::ops::function::FnOnce<()>>::call_once::h9c39013633bb9237 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x629b21a36dea - std::panicking::catch_unwind::do_call::hac7dba9ee4d99108 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x629b21a36dea - std::panicking::catch_unwind::h73015d00e4866ebc [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x629b21a36dea - std::panic::catch_unwind::h6f7b38e188aa4f62 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x629b21a36dea - std::thread::Builder::spawn_unchecked_::{{closure}}::h969a6a2dc1856df7 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x629b21a36dea - core::ops::function::FnOnce::call_once{{vtable.shim}}::h269ad1ff23e72122 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x629b21a89b0f - as core::ops::function::FnOnce>::call_once::hdd09a470c130e806 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/alloc/src/boxed.rs:1973:9 [INFO] [stdout] 43: 0x629b21a89b0f - std::sys::thread::unix::Thread::new::thread_start::h14ea1ba6e320367c [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/thread/unix.rs:126:17 [INFO] [stdout] 44: 0x77f3b5895aa4 - [INFO] [stdout] 45: 0x77f3b5922a34 - 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: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/./rmetaEA5YjU\"\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: 0x629b21ab5a22 - std::backtrace_rs::backtrace::libunwind::trace::h76861be37b31432e [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x629b21ab5a22 - std::backtrace_rs::backtrace::trace_unsynchronized::h58d4003082192c17 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x629b21ab5a22 - std::sys::backtrace::_print_fmt::hfe5857a399620d2a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x629b21ab5a22 - ::fmt::h52160e9da139e442 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x629b21ac5ddf - core::fmt::rt::Argument::fmt::h66fe6fef9ecca14a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x629b21ac5ddf - core::fmt::write::hf09a056a304e021a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x629b21a82661 - std::io::default_write_fmt::hf1a3645468226e09 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x629b21a82661 - std::io::Write::write_fmt::ha5ada6d6a18bde33 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x629b21a8e9b2 - std::sys::backtrace::BacktraceLock::print::h15104dbcf0fd1f14 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x629b21a9364f - std::panicking::default_hook::{{closure}}::h0fa6cd8dbe0dd76b [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x629b21a934e1 - std::panicking::default_hook::h8d20506cf72e4831 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x629b21a4730e - as core::ops::function::Fn>::call::h3d020961abd83a77 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/alloc/src/boxed.rs:1987:9 [INFO] [stdout] 12: 0x629b21a4730e - test::test_main_with_exit_callback::{{closure}}::h720dd2fdb2ddcdca [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x629b21a93d0f - as core::ops::function::Fn>::call::h75334a5fed245bca [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/alloc/src/boxed.rs:1987:9 [INFO] [stdout] 14: 0x629b21a93d0f - std::panicking::panic_with_hook::h746880a052e02c85 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x629b21a93b6a - std::panicking::panic_handler::{{closure}}::h14b95830f89d14b3 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x629b21a8eae9 - std::sys::backtrace::__rust_end_short_backtrace::h7ddaac0e9609a83d [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x629b21a769ad - __rustc[76f7e7187978e2f8]::rust_begin_unwind [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x629b21acdad0 - core::panicking::panic_fmt::heb245a301f4395db [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/panicking.rs:78:14 [INFO] [stdout] 19: 0x629b21accf66 - core::result::unwrap_failed::h91bd1e1731f928fc [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/result.rs:1855:5 [INFO] [stdout] 20: 0x629b21a1ebe4 - core::result::Result::unwrap::hff7e9897f355074d [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/result.rs:1226:23 [INFO] [stdout] 21: 0x629b21a1ebe4 - rustlings::exercise::test::test_exercise_with_output::h64b553f80a845f60 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:445:38 [INFO] [stdout] 22: 0x629b21a1ee67 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h6b964b3eeae72a9b [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:438:35 [INFO] [stdout] 23: 0x629b21a11226 - core::ops::function::FnOnce::call_once::ha232ee68fba0c704 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x629b21a4713b - core::ops::function::FnOnce::call_once::h933a5d67211adff2 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x629b21a4713b - test::__rust_begin_short_backtrace::h2157af19b0990ffb [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x629b21a5cd15 - test::run_test_in_process::{{closure}}::hc3b17e0f313c900a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x629b21a5cd15 - as core::ops::function::FnOnce<()>>::call_once::ha23e4b490259273c [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x629b21a5cd15 - std::panicking::catch_unwind::do_call::h8dc9d5da83792f7a [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x629b21a5cd15 - std::panicking::catch_unwind::h0d8461330de4a18b [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x629b21a5cd15 - std::panic::catch_unwind::h0321b51397bf9811 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x629b21a5cd15 - test::run_test_in_process::hcaaa440fdbe4a513 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x629b21a5cd15 - test::run_test::{{closure}}::h6345da602b85d6c3 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x629b21a33524 - test::run_test::{{closure}}::h90a3b75194d37b5d [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x629b21a33524 - std::sys::backtrace::__rust_begin_short_backtrace::hae41a17001f53ede [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x629b21a36dea - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h6ea895368381e0b1 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x629b21a36dea - as core::ops::function::FnOnce<()>>::call_once::h9c39013633bb9237 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x629b21a36dea - std::panicking::catch_unwind::do_call::hac7dba9ee4d99108 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x629b21a36dea - std::panicking::catch_unwind::h73015d00e4866ebc [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x629b21a36dea - std::panic::catch_unwind::h6f7b38e188aa4f62 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x629b21a36dea - std::thread::Builder::spawn_unchecked_::{{closure}}::h969a6a2dc1856df7 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x629b21a36dea - core::ops::function::FnOnce::call_once{{vtable.shim}}::h269ad1ff23e72122 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x629b21a89b0f - as core::ops::function::FnOnce>::call_once::hdd09a470c130e806 [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/alloc/src/boxed.rs:1973:9 [INFO] [stdout] 43: 0x629b21a89b0f - std::sys::thread::unix::Thread::new::thread_start::h14ea1ba6e320367c [INFO] [stdout] at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/sys/thread/unix.rs:126:17 [INFO] [stdout] 44: 0x77f3b5895aa4 - [INFO] [stdout] 45: 0x77f3b5922a34 - 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. 3 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "80f809076c41e85c9f9833cfde5c6129c793088529e1b9223f5fed547bbb688f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "80f809076c41e85c9f9833cfde5c6129c793088529e1b9223f5fed547bbb688f", kill_on_drop: false }` [INFO] [stdout] 80f809076c41e85c9f9833cfde5c6129c793088529e1b9223f5fed547bbb688f