[INFO] cloning repository https://github.com/tgriozel/Rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tgriozel/Rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftgriozel%2FRustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftgriozel%2FRustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c22a7e6ff245ff9132429401437248c89a890d31 [INFO] testing tgriozel/Rustlings against beta-2025-04-13 for beta-1.87-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftgriozel%2FRustlings" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tgriozel/Rustlings on toolchain beta-2025-04-13 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-04-13" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tgriozel/Rustlings [INFO] finished tweaking git repo https://github.com/tgriozel/Rustlings [INFO] tweaked toml for git repo https://github.com/tgriozel/Rustlings written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/tgriozel/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" "+beta-2025-04-13" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-04-13" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3e9d2fa8fea3e97d61bca0cc9b883272d579571781a8d97d2bb4968dc929a5ae [INFO] running `Command { std: "docker" "start" "-a" "3e9d2fa8fea3e97d61bca0cc9b883272d579571781a8d97d2bb4968dc929a5ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3e9d2fa8fea3e97d61bca0cc9b883272d579571781a8d97d2bb4968dc929a5ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3e9d2fa8fea3e97d61bca0cc9b883272d579571781a8d97d2bb4968dc929a5ae", kill_on_drop: false }` [INFO] [stdout] 3e9d2fa8fea3e97d61bca0cc9b883272d579571781a8d97d2bb4968dc929a5ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-04-13" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7857af0ca0f1e585ac06b5c399c68ed73be8fb23d844ef45e4f4262431587caf [INFO] running `Command { std: "docker" "start" "-a" "7857af0ca0f1e585ac06b5c399c68ed73be8fb23d844ef45e4f4262431587caf", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.53 [INFO] [stderr] Compiling libc v0.2.140 [INFO] [stderr] Compiling quote v1.0.26 [INFO] [stderr] Compiling unicode-ident v1.0.8 [INFO] [stderr] Compiling serde_derive v1.0.158 [INFO] [stderr] Compiling serde v1.0.158 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling utf8parse v0.2.1 [INFO] [stderr] Compiling anstyle-parse v0.2.1 [INFO] [stderr] Compiling slab v0.4.8 [INFO] [stderr] Compiling hashbrown v0.14.0 [INFO] [stderr] Compiling colorchoice v1.0.0 [INFO] [stderr] Compiling equivalent v1.0.1 [INFO] [stderr] Compiling anstyle-query v1.0.0 [INFO] [stderr] Compiling portable-atomic v1.4.3 [INFO] [stderr] Compiling anstyle v1.0.3 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling anstream v0.5.0 [INFO] [stderr] Compiling unicode-width v0.1.10 [INFO] [stderr] Compiling clap_lex v0.5.1 [INFO] [stderr] Compiling memchr v2.6.3 [INFO] [stderr] Compiling heck v0.4.1 [INFO] [stderr] Compiling serde_json v1.0.94 [INFO] [stderr] Compiling indexmap v2.0.0 [INFO] [stderr] Compiling strsim v0.10.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling syn v2.0.8 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.38 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling winnow v0.5.15 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling console v0.15.5 [INFO] [stderr] Compiling filetime v0.2.20 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling aho-corasick v0.7.20 [INFO] [stderr] Compiling clap_builder v4.4.2 [INFO] [stderr] Compiling walkdir v2.3.3 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling ryu v1.0.13 [INFO] [stderr] Compiling itoa v1.0.6 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling regex-syntax v0.6.29 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling indicatif v0.17.6 [INFO] [stderr] Compiling home v0.5.4 [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stderr] Compiling regex v1.7.2 [INFO] [stderr] Compiling clap_derive v4.4.2 [INFO] [stderr] Compiling clap v4.4.3 [INFO] [stderr] Compiling serde_spanned v0.6.3 [INFO] [stderr] Compiling toml_datetime v0.6.3 [INFO] [stderr] Compiling toml_edit v0.19.15 [INFO] [stderr] Compiling toml v0.7.8 [INFO] [stderr] Compiling rustlings v5.6.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.24s [INFO] running `Command { std: "docker" "inspect" "7857af0ca0f1e585ac06b5c399c68ed73be8fb23d844ef45e4f4262431587caf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7857af0ca0f1e585ac06b5c399c68ed73be8fb23d844ef45e4f4262431587caf", kill_on_drop: false }` [INFO] [stdout] 7857af0ca0f1e585ac06b5c399c68ed73be8fb23d844ef45e4f4262431587caf [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-04-13" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e68e753b5f394842a8160fd6f1cb1fd0b0c419df0eb4dbb1d44b9a9968b2a00f [INFO] running `Command { std: "docker" "start" "-a" "e68e753b5f394842a8160fd6f1cb1fd0b0c419df0eb4dbb1d44b9a9968b2a00f", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Compiling predicates-core v1.0.6 [INFO] [stderr] Compiling either v1.9.0 [INFO] [stderr] Compiling termtree v0.4.1 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling regex-automata v0.3.8 [INFO] [stderr] Compiling difflib v0.4.0 [INFO] [stderr] Compiling wait-timeout v0.2.0 [INFO] [stderr] Compiling predicates-tree v1.0.9 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Compiling bstr v1.6.2 [INFO] [stderr] Compiling float-cmp v0.9.0 [INFO] [stderr] Compiling predicates v3.0.3 [INFO] [stderr] Compiling assert_cmd v2.0.12 [INFO] [stderr] Compiling rustlings v5.6.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 2.58s [INFO] running `Command { std: "docker" "inspect" "e68e753b5f394842a8160fd6f1cb1fd0b0c419df0eb4dbb1d44b9a9968b2a00f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e68e753b5f394842a8160fd6f1cb1fd0b0c419df0eb4dbb1d44b9a9968b2a00f", kill_on_drop: false }` [INFO] [stdout] e68e753b5f394842a8160fd6f1cb1fd0b0c419df0eb4dbb1d44b9a9968b2a00f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-04-13" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 641bd6fcb5d7fdd394a24859cedb2eb5e3b8ed17b4a79f15b9fb5ba3bfa2d14f [INFO] running `Command { std: "docker" "start" "-a" "641bd6fcb5d7fdd394a24859cedb2eb5e3b8ed17b4a79f15b9fb5ba3bfa2d14f", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-25cebbd88663a470) [INFO] [stdout] [INFO] [stdout] running 4 tests [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:273:35: [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: 0x56e9fbb4f292 - std::backtrace_rs::backtrace::libunwind::trace::h97da83aab53f337d [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x56e9fbb4f292 - std::backtrace_rs::backtrace::trace_unsynchronized::h07d9fad959b0b0c4 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x56e9fbb4f292 - std::sys::backtrace::_print_fmt::h73b6844d523a91e6 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x56e9fbb4f292 - ::fmt::had50d3dbab4f9a49 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x56e9fbb754f3 - core::fmt::rt::Argument::fmt::h96dc2668ac588484 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/fmt/rt.rs:184:76 [INFO] [stdout] 5: 0x56e9fbb754f3 - core::fmt::write::h3c068850dd3fcd11 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/fmt/mod.rs:1480:21 [INFO] [stdout] 6: 0x56e9fbb4c953 - std::io::default_write_fmt::h9f5cac5e26eafb82 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x56e9fbb4c953 - std::io::Write::write_fmt::h9be88ac981c80255 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/io/mod.rs:1914:13 [INFO] [stdout] 8: 0x56e9fbb4f0e2 - std::sys::backtrace::BacktraceLock::print::h160d33c700b1accf [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x56e9fbb5067c - std::panicking::default_hook::{{closure}}::hdccf862335980e92 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:300:22 [INFO] [stdout] 10: 0x56e9fbb504d2 - std::panicking::default_hook::h92ea296b4f4c5d78 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x56e9fb9e1a34 - as core::ops::function::Fn>::call::h58e2cb0c3aa8f900 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x56e9fb9e1a34 - test::test_main::{{closure}}::h068e739b3ff3ace9 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:136:21 [INFO] [stdout] 13: 0x56e9fbb510f3 - as core::ops::function::Fn>::call::h4dc3b8e0d98a0945 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x56e9fbb510f3 - std::panicking::rust_panic_with_hook::h53eb519a340d7090 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x56e9fbb50dca - std::panicking::begin_panic_handler::{{closure}}::h1b012222d781940d [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x56e9fbb4f789 - std::sys::backtrace::__rust_end_short_backtrace::hb1c00a6a74936045 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x56e9fbb50a5d - __rustc[3fad54a3e94379e3]::rust_begin_unwind [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x56e9fb9986f0 - core::panicking::panic_fmt::h5646b0c12be1dead [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x56e9fb998b86 - core::result::unwrap_failed::hc06d646aff6e2a9a [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/result.rs:1704:5 [INFO] [stdout] 20: 0x56e9fb99ed04 - core::result::Result::unwrap::hedd1098ebd1f0343 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/result.rs:1109:23 [INFO] [stdout] 21: 0x56e9fb99ed04 - rustlings::exercise::test::test_clean::hba9fddae410a27d9 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:273:9 [INFO] [stdout] 22: 0x56e9fb99ec87 - rustlings::exercise::test::test_clean::{{closure}}::h2316a3bade01ebf7 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:272:20 [INFO] [stdout] 23: 0x56e9fb9a0ee6 - core::ops::function::FnOnce::call_once::h62f84ca796d82014 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x56e9fb9e738b - core::ops::function::FnOnce::call_once::h36fc4a9de3ab6dc6 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x56e9fb9e738b - test::__rust_begin_short_backtrace::ha0a98bb69b358a31 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:638:18 [INFO] [stdout] 26: 0x56e9fb9e637f - test::run_test_in_process::{{closure}}::h8c178d13fba0a588 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:661:60 [INFO] [stdout] 27: 0x56e9fb9e637f - as core::ops::function::FnOnce<()>>::call_once::hcf9a13e44c998160 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x56e9fb9e637f - std::panicking::try::do_call::h4af5be696220e430 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x56e9fb9e637f - std::panicking::try::hbf49a526ff439d5e [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x56e9fb9e637f - std::panic::catch_unwind::h73db1b343ad1c705 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x56e9fb9e637f - test::run_test_in_process::hef059ed743ea6437 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:661:27 [INFO] [stdout] 32: 0x56e9fb9e637f - test::run_test::{{closure}}::h9508bce7fbf1ad82 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:582:43 [INFO] [stdout] 33: 0x56e9fb9aaad4 - test::run_test::{{closure}}::h70f94fa995999514 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:612:41 [INFO] [stdout] 34: 0x56e9fb9aaad4 - std::sys::backtrace::__rust_begin_short_backtrace::hfc7043e7c8324aca [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x56e9fb9ae3ca - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h599c966db81290c0 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x56e9fb9ae3ca - as core::ops::function::FnOnce<()>>::call_once::h499078bec004bb56 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x56e9fb9ae3ca - std::panicking::try::do_call::h336d5bb945571c50 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x56e9fb9ae3ca - std::panicking::try::hea8a9a2c11807957 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x56e9fb9ae3ca - std::panic::catch_unwind::hc46631a6d929f68d [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x56e9fb9ae3ca - std::thread::Builder::spawn_unchecked_::{{closure}}::he5729da5506c58d1 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x56e9fb9ae3ca - core::ops::function::FnOnce::call_once{{vtable.shim}}::h8b7f1215a4f7e46f [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x56e9fbb52e4b - as core::ops::function::FnOnce>::call_once::h5e2c5a5b1d7d1d9c [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x56e9fbb52e4b - as core::ops::function::FnOnce>::call_once::hc50cd23acd01680e [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x56e9fbb52e4b - std::sys::pal::unix::thread::Thread::new::thread_start::hb3d0e19f380baa62 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/pal/unix/thread.rs:109:17 [INFO] [stdout] 45: 0x7caa9ebb7aa4 - [INFO] [stdout] 46: 0x7caa9ec44a34 - clone [INFO] [stdout] 47: 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:346:38: [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/./rmetaT5qg6j\"\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: 0x56e9fbb4f292 - std::backtrace_rs::backtrace::libunwind::trace::h97da83aab53f337d [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x56e9fbb4f292 - std::backtrace_rs::backtrace::trace_unsynchronized::h07d9fad959b0b0c4 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x56e9fbb4f292 - std::sys::backtrace::_print_fmt::h73b6844d523a91e6 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x56e9fbb4f292 - ::fmt::had50d3dbab4f9a49 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x56e9fbb754f3 - core::fmt::rt::Argument::fmt::h96dc2668ac588484 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/fmt/rt.rs:184:76 [INFO] [stdout] 5: 0x56e9fbb754f3 - core::fmt::write::h3c068850dd3fcd11 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/fmt/mod.rs:1480:21 [INFO] [stdout] 6: 0x56e9fbb4c953 - std::io::default_write_fmt::h9f5cac5e26eafb82 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x56e9fbb4c953 - std::io::Write::write_fmt::h9be88ac981c80255 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/io/mod.rs:1914:13 [INFO] [stdout] 8: 0x56e9fbb4f0e2 - std::sys::backtrace::BacktraceLock::print::h160d33c700b1accf [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x56e9fbb5067c - std::panicking::default_hook::{{closure}}::hdccf862335980e92 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:300:22 [INFO] [stdout] 10: 0x56e9fbb504d2 - std::panicking::default_hook::h92ea296b4f4c5d78 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x56e9fb9e1a34 - as core::ops::function::Fn>::call::h58e2cb0c3aa8f900 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x56e9fb9e1a34 - test::test_main::{{closure}}::h068e739b3ff3ace9 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:136:21 [INFO] [stdout] 13: 0x56e9fbb510f3 - as core::ops::function::Fn>::call::h4dc3b8e0d98a0945 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x56e9fbb510f3 - std::panicking::rust_panic_with_hook::h53eb519a340d7090 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x56e9fbb50dca - std::panicking::begin_panic_handler::{{closure}}::h1b012222d781940d [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x56e9fbb4f789 - std::sys::backtrace::__rust_end_short_backtrace::hb1c00a6a74936045 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x56e9fbb50a5d - __rustc[3fad54a3e94379e3]::rust_begin_unwind [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x56e9fb9986f0 - core::panicking::panic_fmt::h5646b0c12be1dead [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x56e9fb998b86 - core::result::unwrap_failed::hc06d646aff6e2a9a [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/result.rs:1704:5 [INFO] [stdout] 20: 0x56e9fb99fb76 - core::result::Result::unwrap::h3ad3a99d2a8a425a [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/result.rs:1109:23 [INFO] [stdout] 21: 0x56e9fb99fb76 - rustlings::exercise::test::test_exercise_with_output::h7aa6768c355a585b [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:346:19 [INFO] [stdout] 22: 0x56e9fb99f977 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hee257ba53e827d1e [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:339:35 [INFO] [stdout] 23: 0x56e9fb9a0f26 - core::ops::function::FnOnce::call_once::h81e183f17adcfcc5 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x56e9fb9e738b - core::ops::function::FnOnce::call_once::h36fc4a9de3ab6dc6 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x56e9fb9e738b - test::__rust_begin_short_backtrace::ha0a98bb69b358a31 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:638:18 [INFO] [stdout] 26: 0x56e9fb9e637f - test::run_test_in_process::{{closure}}::h8c178d13fba0a588 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:661:60 [INFO] [stdout] 27: 0x56e9fb9e637f - as core::ops::function::FnOnce<()>>::call_once::hcf9a13e44c998160 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x56e9fb9e637f - std::panicking::try::do_call::h4af5be696220e430 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x56e9fb9e637f - std::panicking::try::hbf49a526ff439d5e [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x56e9fb9e637f - std::panic::catch_unwind::h73db1b343ad1c705 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x56e9fb9e637f - test::run_test_in_process::hef059ed743ea6437 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:661:27 [INFO] [stdout] 32: 0x56e9fb9e637f - test::run_test::{{closure}}::h9508bce7fbf1ad82 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:582:43 [INFO] [stdout] 33: 0x56e9fb9aaad4 - test::run_test::{{closure}}::h70f94fa995999514 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:612:41 [INFO] [stdout] 34: 0x56e9fb9aaad4 - std::sys::backtrace::__rust_begin_short_backtrace::hfc7043e7c8324aca [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x56e9fb9ae3ca - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h599c966db81290c0 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x56e9fb9ae3ca - as core::ops::function::FnOnce<()>>::call_once::h499078bec004bb56 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x56e9fb9ae3ca - std::panicking::try::do_call::h336d5bb945571c50 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x56e9fb9ae3ca - std::panicking::try::hea8a9a2c11807957 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x56e9fb9ae3ca - std::panic::catch_unwind::hc46631a6d929f68d [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x56e9fb9ae3ca - std::thread::Builder::spawn_unchecked_::{{closure}}::he5729da5506c58d1 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x56e9fb9ae3ca - core::ops::function::FnOnce::call_once{{vtable.shim}}::h8b7f1215a4f7e46f [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x56e9fbb52e4b - as core::ops::function::FnOnce>::call_once::h5e2c5a5b1d7d1d9c [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x56e9fbb52e4b - as core::ops::function::FnOnce>::call_once::hc50cd23acd01680e [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x56e9fbb52e4b - std::sys::pal::unix::thread::Thread::new::thread_start::hb3d0e19f380baa62 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/pal/unix/thread.rs:109:17 [INFO] [stdout] 45: 0x7caa9ebb7aa4 - [INFO] [stdout] 46: 0x7caa9ec44a34 - clone [INFO] [stdout] 47: 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 0.09s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "641bd6fcb5d7fdd394a24859cedb2eb5e3b8ed17b4a79f15b9fb5ba3bfa2d14f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "641bd6fcb5d7fdd394a24859cedb2eb5e3b8ed17b4a79f15b9fb5ba3bfa2d14f", kill_on_drop: false }` [INFO] [stdout] 641bd6fcb5d7fdd394a24859cedb2eb5e3b8ed17b4a79f15b9fb5ba3bfa2d14f