[INFO] cloning repository https://github.com/yenaras/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yenaras/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyenaras%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyenaras%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 78d601ab5dbe9c2a1f4c6dcdf12d8f52a45a1c04 [INFO] testing yenaras/rustlings against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyenaras%2Frustlings" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/yenaras/rustlings on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/yenaras/rustlings [INFO] finished tweaking git repo https://github.com/yenaras/rustlings [INFO] tweaked toml for git repo https://github.com/yenaras/rustlings written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/yenaras/rustlings 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded toml v0.4.10 [INFO] [stderr] Downloaded quote v1.0.9 [INFO] [stderr] Downloaded fsevent v0.4.0 [INFO] [stderr] Downloaded argh_shared v0.1.5 [INFO] [stderr] Downloaded slab v0.4.4 [INFO] [stderr] Downloaded console v0.7.7 [INFO] [stderr] Downloaded argh_derive v0.1.5 [INFO] [stderr] Downloaded assert_cmd v0.11.1 [INFO] [stderr] Downloaded ryu v1.0.5 [INFO] [stderr] Downloaded notify v4.0.17 [INFO] [stderr] Downloaded unicode-segmentation v1.8.0 [INFO] [stderr] Downloaded serde_json v1.0.66 [INFO] [stderr] Downloaded serde v1.0.129 [INFO] [stderr] Downloaded encode_unicode v0.3.6 [INFO] [stderr] Downloaded parking_lot v0.11.1 [INFO] [stderr] Downloaded serde_derive v1.0.129 [INFO] [stderr] Downloaded smallvec v1.6.1 [INFO] [stderr] Downloaded syn v1.0.75 [INFO] [stderr] Downloaded parking_lot_core v0.8.3 [INFO] [stderr] Downloaded indicatif v0.10.3 [INFO] [stderr] Downloaded inotify v0.7.1 [INFO] [stderr] Downloaded autocfg v1.0.1 [INFO] [stderr] Downloaded float-cmp v0.8.0 [INFO] [stderr] Downloaded proc-macro2 v1.0.28 [INFO] [stderr] Downloaded argh v0.1.5 [INFO] [stderr] Downloaded itoa v0.4.8 [INFO] [stderr] Downloaded escargot v0.4.0 [INFO] [stderr] Downloaded termios v0.3.3 [INFO] [stderr] Downloaded terminal_size v0.1.17 [INFO] [stderr] Downloaded unicode-width v0.1.8 [INFO] [stderr] Downloaded console v0.14.1 [INFO] [stderr] Downloaded lock_api v0.4.4 [INFO] [stderr] Downloaded filetime v0.2.15 [INFO] [stderr] Downloaded libc v0.2.100 [INFO] [stderr] Downloaded predicates v1.0.8 [INFO] [stderr] Downloaded predicates-tree v1.0.3 [INFO] [stderr] Downloaded clicolors-control v1.0.1 [INFO] [stderr] Downloaded number_prefix v0.2.8 [INFO] [stderr] Downloaded instant v0.1.10 [INFO] [stderr] Downloaded fsevent-sys v2.0.1 [INFO] [stderr] Downloaded inotify-sys v0.1.5 [INFO] [stderr] Downloaded normalize-line-endings v0.3.0 [INFO] [stderr] Downloaded predicates-core v1.0.2 [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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3d2d325923945dc168e593d17c482c8c42a324dfc25bf5c35efed56bd9c72796 [INFO] running `Command { std: "docker" "start" "-a" "3d2d325923945dc168e593d17c482c8c42a324dfc25bf5c35efed56bd9c72796", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3d2d325923945dc168e593d17c482c8c42a324dfc25bf5c35efed56bd9c72796", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3d2d325923945dc168e593d17c482c8c42a324dfc25bf5c35efed56bd9c72796", kill_on_drop: false }` [INFO] [stdout] 3d2d325923945dc168e593d17c482c8c42a324dfc25bf5c35efed56bd9c72796 [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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2bf242b95dfb30b4c20c3857eb0bd724eb5d51e4d586c0d1c326ccc99e13d2a2 [INFO] running `Command { std: "docker" "start" "-a" "2bf242b95dfb30b4c20c3857eb0bd724eb5d51e4d586c0d1c326ccc99e13d2a2", 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 syn v1.0.75 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling instant v0.1.10 [INFO] [stderr] Compiling lazy_static v1.4.0 [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 slab v0.4.4 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling quote v1.0.9 [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 inotify-sys v0.1.5 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling clicolors-control v1.0.1 [INFO] [stderr] Compiling termios v0.3.3 [INFO] [stderr] Compiling number_prefix v0.2.8 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling filetime v0.2.15 [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 indicatif v0.10.3 [INFO] [stderr] Compiling argh_derive v0.1.5 [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] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.67s [INFO] running `Command { std: "docker" "inspect" "2bf242b95dfb30b4c20c3857eb0bd724eb5d51e4d586c0d1c326ccc99e13d2a2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2bf242b95dfb30b4c20c3857eb0bd724eb5d51e4d586c0d1c326ccc99e13d2a2", kill_on_drop: false }` [INFO] [stdout] 2bf242b95dfb30b4c20c3857eb0bd724eb5d51e4d586c0d1c326ccc99e13d2a2 [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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7d141310c2cc98786b9caed77d4cad8cfe914b5094e8cdcec57a7da4e072abde [INFO] running `Command { std: "docker" "start" "-a" "7d141310c2cc98786b9caed77d4cad8cfe914b5094e8cdcec57a7da4e072abde", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling predicates-tree v1.0.3 [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] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 6.16s [INFO] running `Command { std: "docker" "inspect" "7d141310c2cc98786b9caed77d4cad8cfe914b5094e8cdcec57a7da4e072abde", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d141310c2cc98786b9caed77d4cad8cfe914b5094e8cdcec57a7da4e072abde", kill_on_drop: false }` [INFO] [stdout] 7d141310c2cc98786b9caed77d4cad8cfe914b5094e8cdcec57a7da4e072abde [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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 5a4a23b9052309021c9c4c8cc510cac5ca49921a886bb447d9fa0e6835d03cc3 [INFO] running `Command { std: "docker" "start" "-a" "5a4a23b9052309021c9c4c8cc510cac5ca49921a886bb447d9fa0e6835d03cc3", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-7a2ff846375d17dd) [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' 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: 0x57a1058f4592 - std::backtrace_rs::backtrace::libunwind::trace::hf010e1dbae51cb72 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x57a1058f4592 - std::backtrace_rs::backtrace::trace_unsynchronized::hfea1b1ce70c8ef04 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x57a1058f4592 - std::sys::backtrace::_print_fmt::h2997a50d2484a6a6 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x57a1058f4592 - ::fmt::h7fb80f6afbe41a33 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x57a10591c123 - core::fmt::rt::Argument::fmt::hd3a68c3e7e846625 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/fmt/rt.rs:185:76 [INFO] [stdout] 5: 0x57a10591c123 - core::fmt::write::h000527be0eea6fe8 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/fmt/mod.rs:1449:21 [INFO] [stdout] 6: 0x57a1058f1263 - std::io::Write::write_fmt::h5402e677befea770 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/io/mod.rs:1890:15 [INFO] [stdout] 7: 0x57a1058f43e2 - std::sys::backtrace::BacktraceLock::print::hffad87dde00cbe3e [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x57a1058f5a3a - std::panicking::default_hook::{{closure}}::ha46397973bec1239 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:298:22 [INFO] [stdout] 9: 0x57a1058f5829 - std::panicking::default_hook::h706de72a1550eed4 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:322:9 [INFO] [stdout] 10: 0x57a105790887 - as core::ops::function::Fn>::call::hde091e5c6e92bb68 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/alloc/src/boxed.rs:1984:9 [INFO] [stdout] 11: 0x57a105790887 - test::test_main::{{closure}}::h769424ff54c41197 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/test/src/lib.rs:136:21 [INFO] [stdout] 12: 0x57a1058f6523 - as core::ops::function::Fn>::call::hbd7480c9dddf3315 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/alloc/src/boxed.rs:1984:9 [INFO] [stdout] 13: 0x57a1058f6523 - std::panicking::rust_panic_with_hook::h6666776865bd21f5 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:839:13 [INFO] [stdout] 14: 0x57a1058f61da - std::panicking::begin_panic_handler::{{closure}}::hb8595612365d24db [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:704:13 [INFO] [stdout] 15: 0x57a1058f4a89 - std::sys::backtrace::__rust_end_short_backtrace::h7037f177c7ae4ed3 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 16: 0x57a1058f5e6d - rust_begin_unwind [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:695:5 [INFO] [stdout] 17: 0x57a10591ab20 - core::panicking::panic_fmt::hd26142fa9828e2a3 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/panicking.rs:75:14 [INFO] [stdout] 18: 0x57a10591afc6 - core::result::unwrap_failed::hfccce26cc7701817 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/result.rs:1704:5 [INFO] [stdout] 19: 0x57a10574e0bc - core::result::Result::unwrap::h3df8594c3d2ea853 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/result.rs:1109:23 [INFO] [stdout] 20: 0x57a10574e0bc - rustlings::exercise::test::test_clean::h4d59f3a1270825fa [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:270:9 [INFO] [stdout] 21: 0x57a10574dff7 - rustlings::exercise::test::test_clean::{{closure}}::h1c16be50f3d11075 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:20 [INFO] [stdout] 22: 0x57a105748ef6 - core::ops::function::FnOnce::call_once::hc90fb9a4a3f87445 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x57a10579618b - core::ops::function::FnOnce::call_once::h537cb3ba0681a85d [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x57a10579618b - test::__rust_begin_short_backtrace::ha34590b284b8a909 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/test/src/lib.rs:638:18 [INFO] [stdout] 25: 0x57a105795225 - test::run_test_in_process::{{closure}}::h7e5cb0195a5ea6a6 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/test/src/lib.rs:661:60 [INFO] [stdout] 26: 0x57a105795225 - as core::ops::function::FnOnce<()>>::call_once::h4fd7826f39023efe [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x57a105795225 - std::panicking::try::do_call::h840562177f324507 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:587:40 [INFO] [stdout] 28: 0x57a105795225 - std::panicking::try::h2360ed2f8f8e7bd8 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:550:19 [INFO] [stdout] 29: 0x57a105795225 - std::panic::catch_unwind::h98cd8da2f8eb8f7b [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panic.rs:359:14 [INFO] [stdout] 30: 0x57a105795225 - test::run_test_in_process::hcd6b1143eaf140ef [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/test/src/lib.rs:661:27 [INFO] [stdout] 31: 0x57a105795225 - test::run_test::{{closure}}::h12da0337272887dc [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/test/src/lib.rs:582:43 [INFO] [stdout] 32: 0x57a105758214 - test::run_test::{{closure}}::h11d537cad5364bdc [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/test/src/lib.rs:612:41 [INFO] [stdout] 33: 0x57a105758214 - std::sys::backtrace::__rust_begin_short_backtrace::h5f533949825eb644 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 34: 0x57a10575bc7a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hf8cffede9b676267 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 35: 0x57a10575bc7a - as core::ops::function::FnOnce<()>>::call_once::h3160424131f9b05b [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x57a10575bc7a - std::panicking::try::do_call::h4821f856f783960c [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:587:40 [INFO] [stdout] 37: 0x57a10575bc7a - std::panicking::try::hd6726363e8162e27 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:550:19 [INFO] [stdout] 38: 0x57a10575bc7a - std::panic::catch_unwind::hb75a27d7bd2912cb [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panic.rs:359:14 [INFO] [stdout] 39: 0x57a10575bc7a - std::thread::Builder::spawn_unchecked_::{{closure}}::h36d5666a81748b85 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 40: 0x57a10575bc7a - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha3d6556f1deabcaf [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x57a1058f9c9b - as core::ops::function::FnOnce>::call_once::h454485597884df01 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/alloc/src/boxed.rs:1970:9 [INFO] [stdout] 42: 0x57a1058f9c9b - as core::ops::function::FnOnce>::call_once::h421b8b5dc09cf3b4 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/alloc/src/boxed.rs:1970:9 [INFO] [stdout] 43: 0x57a1058f9c9b - std::sys::pal::unix::thread::Thread::new::thread_start::ha1530b93ff336c49 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/sys/pal/unix/thread.rs:109:17 [INFO] [stdout] 44: 0x714749080ac3 - [INFO] [stdout] 45: 0x714749111a04 - 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' 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/./rmetaWKU7Jx\"\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: 0x57a1058f4592 - std::backtrace_rs::backtrace::libunwind::trace::hf010e1dbae51cb72 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x57a1058f4592 - std::backtrace_rs::backtrace::trace_unsynchronized::hfea1b1ce70c8ef04 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x57a1058f4592 - std::sys::backtrace::_print_fmt::h2997a50d2484a6a6 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x57a1058f4592 - ::fmt::h7fb80f6afbe41a33 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x57a10591c123 - core::fmt::rt::Argument::fmt::hd3a68c3e7e846625 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/fmt/rt.rs:185:76 [INFO] [stdout] 5: 0x57a10591c123 - core::fmt::write::h000527be0eea6fe8 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/fmt/mod.rs:1449:21 [INFO] [stdout] 6: 0x57a1058f1263 - std::io::Write::write_fmt::h5402e677befea770 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/io/mod.rs:1890:15 [INFO] [stdout] 7: 0x57a1058f43e2 - std::sys::backtrace::BacktraceLock::print::hffad87dde00cbe3e [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x57a1058f5a3a - std::panicking::default_hook::{{closure}}::ha46397973bec1239 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:298:22 [INFO] [stdout] 9: 0x57a1058f5829 - std::panicking::default_hook::h706de72a1550eed4 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:322:9 [INFO] [stdout] 10: 0x57a105790887 - as core::ops::function::Fn>::call::hde091e5c6e92bb68 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/alloc/src/boxed.rs:1984:9 [INFO] [stdout] 11: 0x57a105790887 - test::test_main::{{closure}}::h769424ff54c41197 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/test/src/lib.rs:136:21 [INFO] [stdout] 12: 0x57a1058f6523 - as core::ops::function::Fn>::call::hbd7480c9dddf3315 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/alloc/src/boxed.rs:1984:9 [INFO] [stdout] 13: 0x57a1058f6523 - std::panicking::rust_panic_with_hook::h6666776865bd21f5 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:839:13 [INFO] [stdout] 14: 0x57a1058f61da - std::panicking::begin_panic_handler::{{closure}}::hb8595612365d24db [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:704:13 [INFO] [stdout] 15: 0x57a1058f4a89 - std::sys::backtrace::__rust_end_short_backtrace::h7037f177c7ae4ed3 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 16: 0x57a1058f5e6d - rust_begin_unwind [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:695:5 [INFO] [stdout] 17: 0x57a10591ab20 - core::panicking::panic_fmt::hd26142fa9828e2a3 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/panicking.rs:75:14 [INFO] [stdout] 18: 0x57a10591afc6 - core::result::unwrap_failed::hfccce26cc7701817 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/result.rs:1704:5 [INFO] [stdout] 19: 0x57a10574ef52 - core::result::Result::unwrap::hbb2335a3eb763717 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/result.rs:1109:23 [INFO] [stdout] 20: 0x57a10574ef52 - rustlings::exercise::test::test_exercise_with_output::h56b43474fe1a3652 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:343:19 [INFO] [stdout] 21: 0x57a10574ed57 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h8fb1e861540c24c2 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:336:35 [INFO] [stdout] 22: 0x57a105748f36 - core::ops::function::FnOnce::call_once::he64eb46712053bc9 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x57a10579618b - core::ops::function::FnOnce::call_once::h537cb3ba0681a85d [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x57a10579618b - test::__rust_begin_short_backtrace::ha34590b284b8a909 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/test/src/lib.rs:638:18 [INFO] [stdout] 25: 0x57a105795225 - test::run_test_in_process::{{closure}}::h7e5cb0195a5ea6a6 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/test/src/lib.rs:661:60 [INFO] [stdout] 26: 0x57a105795225 - as core::ops::function::FnOnce<()>>::call_once::h4fd7826f39023efe [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x57a105795225 - std::panicking::try::do_call::h840562177f324507 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:587:40 [INFO] [stdout] 28: 0x57a105795225 - std::panicking::try::h2360ed2f8f8e7bd8 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:550:19 [INFO] [stdout] 29: 0x57a105795225 - std::panic::catch_unwind::h98cd8da2f8eb8f7b [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panic.rs:359:14 [INFO] [stdout] 30: 0x57a105795225 - test::run_test_in_process::hcd6b1143eaf140ef [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/test/src/lib.rs:661:27 [INFO] [stdout] 31: 0x57a105795225 - test::run_test::{{closure}}::h12da0337272887dc [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/test/src/lib.rs:582:43 [INFO] [stdout] 32: 0x57a105758214 - test::run_test::{{closure}}::h11d537cad5364bdc [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/test/src/lib.rs:612:41 [INFO] [stdout] 33: 0x57a105758214 - std::sys::backtrace::__rust_begin_short_backtrace::h5f533949825eb644 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 34: 0x57a10575bc7a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hf8cffede9b676267 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 35: 0x57a10575bc7a - as core::ops::function::FnOnce<()>>::call_once::h3160424131f9b05b [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x57a10575bc7a - std::panicking::try::do_call::h4821f856f783960c [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:587:40 [INFO] [stdout] 37: 0x57a10575bc7a - std::panicking::try::hd6726363e8162e27 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panicking.rs:550:19 [INFO] [stdout] 38: 0x57a10575bc7a - std::panic::catch_unwind::hb75a27d7bd2912cb [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/panic.rs:359:14 [INFO] [stdout] 39: 0x57a10575bc7a - std::thread::Builder::spawn_unchecked_::{{closure}}::h36d5666a81748b85 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 40: 0x57a10575bc7a - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha3d6556f1deabcaf [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x57a1058f9c9b - as core::ops::function::FnOnce>::call_once::h454485597884df01 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/alloc/src/boxed.rs:1970:9 [INFO] [stdout] 42: 0x57a1058f9c9b - as core::ops::function::FnOnce>::call_once::h421b8b5dc09cf3b4 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/alloc/src/boxed.rs:1970:9 [INFO] [stdout] 43: 0x57a1058f9c9b - std::sys::pal::unix::thread::Thread::new::thread_start::ha1530b93ff336c49 [INFO] [stdout] at /rustc/ebf0cf75d368c035f4c7e7246d203bd469ee4a51/library/std/src/sys/pal/unix/thread.rs:109:17 [INFO] [stdout] 44: 0x714749080ac3 - [INFO] [stdout] 45: 0x714749111a04 - 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 0.10s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "5a4a23b9052309021c9c4c8cc510cac5ca49921a886bb447d9fa0e6835d03cc3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5a4a23b9052309021c9c4c8cc510cac5ca49921a886bb447d9fa0e6835d03cc3", kill_on_drop: false }` [INFO] [stdout] 5a4a23b9052309021c9c4c8cc510cac5ca49921a886bb447d9fa0e6835d03cc3