[INFO] cloning repository https://github.com/stnguyen/rustling-solutions [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stnguyen/rustling-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstnguyen%2Frustling-solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstnguyen%2Frustling-solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b17295b36fbfa02f4068a71502dba015b6f20b7d [INFO] testing stnguyen/rustling-solutions 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%2Fstnguyen%2Frustling-solutions" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/stnguyen/rustling-solutions 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/stnguyen/rustling-solutions [INFO] finished tweaking git repo https://github.com/stnguyen/rustling-solutions [INFO] tweaked toml for git repo https://github.com/stnguyen/rustling-solutions written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/stnguyen/rustling-solutions already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-04-13" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 06e90f4ed630fd910853e20ee81890bbef98e1c9a66c2c03c783404a5cdb6cdb [INFO] running `Command { std: "docker" "start" "-a" "06e90f4ed630fd910853e20ee81890bbef98e1c9a66c2c03c783404a5cdb6cdb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "06e90f4ed630fd910853e20ee81890bbef98e1c9a66c2c03c783404a5cdb6cdb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "06e90f4ed630fd910853e20ee81890bbef98e1c9a66c2c03c783404a5cdb6cdb", kill_on_drop: false }` [INFO] [stdout] 06e90f4ed630fd910853e20ee81890bbef98e1c9a66c2c03c783404a5cdb6cdb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 270120766e87763ff29d5b01da34eab965f78928f0b9ca6c9d87e086fc2e3e35 [INFO] running `Command { std: "docker" "start" "-a" "270120766e87763ff29d5b01da34eab965f78928f0b9ca6c9d87e086fc2e3e35", 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 cfg-if v1.0.0 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling itoa v1.0.2 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling home v0.5.3 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling regex v1.5.5 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling console v0.15.0 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling toml v0.5.9 [INFO] [stderr] Compiling rustlings v5.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 38.91s [INFO] running `Command { std: "docker" "inspect" "270120766e87763ff29d5b01da34eab965f78928f0b9ca6c9d87e086fc2e3e35", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "270120766e87763ff29d5b01da34eab965f78928f0b9ca6c9d87e086fc2e3e35", kill_on_drop: false }` [INFO] [stdout] 270120766e87763ff29d5b01da34eab965f78928f0b9ca6c9d87e086fc2e3e35 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 1a6591281b7e33553251830a0e1b513ba8218fd1f19d2877bc13b4c2d35bcc4e [INFO] running `Command { std: "docker" "start" "-a" "1a6591281b7e33553251830a0e1b513ba8218fd1f19d2877bc13b4c2d35bcc4e", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling predicates-tree v1.0.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling predicates v1.0.8 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v5.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 8.38s [INFO] running `Command { std: "docker" "inspect" "1a6591281b7e33553251830a0e1b513ba8218fd1f19d2877bc13b4c2d35bcc4e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a6591281b7e33553251830a0e1b513ba8218fd1f19d2877bc13b4c2d35bcc4e", kill_on_drop: false }` [INFO] [stdout] 1a6591281b7e33553251830a0e1b513ba8218fd1f19d2877bc13b4c2d35bcc4e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] e69adf8324d05a1c1b331e7aaa7f3ca8a9f228ca438e52eac34f9afc3e2349ff [INFO] running `Command { std: "docker" "start" "-a" "e69adf8324d05a1c1b331e7aaa7f3ca8a9f228ca438e52eac34f9afc3e2349ff", 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-1dacff6180091e20) [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:269:36: [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: 0x624604fc2d22 - 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: 0x624604fc2d22 - 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: 0x624604fc2d22 - std::sys::backtrace::_print_fmt::h73b6844d523a91e6 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x624604fc2d22 - ::fmt::had50d3dbab4f9a49 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x624604fe8f83 - core::fmt::rt::Argument::fmt::h96dc2668ac588484 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/fmt/rt.rs:184:76 [INFO] [stdout] 5: 0x624604fe8f83 - core::fmt::write::h3c068850dd3fcd11 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/fmt/mod.rs:1480:21 [INFO] [stdout] 6: 0x624604fc03e3 - std::io::default_write_fmt::h9f5cac5e26eafb82 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x624604fc03e3 - std::io::Write::write_fmt::h9be88ac981c80255 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/io/mod.rs:1914:13 [INFO] [stdout] 8: 0x624604fc2b72 - std::sys::backtrace::BacktraceLock::print::h160d33c700b1accf [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x624604fc410c - std::panicking::default_hook::{{closure}}::hdccf862335980e92 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:300:22 [INFO] [stdout] 10: 0x624604fc3f62 - std::panicking::default_hook::h92ea296b4f4c5d78 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x624604e5e614 - as core::ops::function::Fn>::call::h58e2cb0c3aa8f900 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x624604e5e614 - test::test_main::{{closure}}::h068e739b3ff3ace9 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:136:21 [INFO] [stdout] 13: 0x624604fc4b83 - as core::ops::function::Fn>::call::h4dc3b8e0d98a0945 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x624604fc4b83 - std::panicking::rust_panic_with_hook::h53eb519a340d7090 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x624604fc485a - std::panicking::begin_panic_handler::{{closure}}::h1b012222d781940d [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x624604fc3219 - std::sys::backtrace::__rust_end_short_backtrace::hb1c00a6a74936045 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x624604fc44ed - __rustc[3fad54a3e94379e3]::rust_begin_unwind [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x624604e156f0 - core::panicking::panic_fmt::h5646b0c12be1dead [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x624604e15b86 - core::result::unwrap_failed::hc06d646aff6e2a9a [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/result.rs:1704:5 [INFO] [stdout] 20: 0x624604e1f3ec - core::result::Result::unwrap::h8033477423fa8282 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/result.rs:1109:23 [INFO] [stdout] 21: 0x624604e1f3ec - rustlings::exercise::test::test_clean::h01c140dc2cd0139a [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:9 [INFO] [stdout] 22: 0x624604e1f327 - rustlings::exercise::test::test_clean::{{closure}}::h760d29c822bca621 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:268:20 [INFO] [stdout] 23: 0x624604e17366 - core::ops::function::FnOnce::call_once::h823644e3479295c1 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x624604e63f6b - core::ops::function::FnOnce::call_once::h36fc4a9de3ab6dc6 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x624604e63f6b - test::__rust_begin_short_backtrace::ha0a98bb69b358a31 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:638:18 [INFO] [stdout] 26: 0x624604e62f5f - test::run_test_in_process::{{closure}}::h8c178d13fba0a588 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:661:60 [INFO] [stdout] 27: 0x624604e62f5f - 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: 0x624604e62f5f - std::panicking::try::do_call::h4af5be696220e430 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x624604e62f5f - std::panicking::try::hbf49a526ff439d5e [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x624604e62f5f - std::panic::catch_unwind::h73db1b343ad1c705 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x624604e62f5f - test::run_test_in_process::hef059ed743ea6437 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:661:27 [INFO] [stdout] 32: 0x624604e62f5f - test::run_test::{{closure}}::h9508bce7fbf1ad82 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:582:43 [INFO] [stdout] 33: 0x624604e276b4 - test::run_test::{{closure}}::h70f94fa995999514 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:612:41 [INFO] [stdout] 34: 0x624604e276b4 - std::sys::backtrace::__rust_begin_short_backtrace::hfc7043e7c8324aca [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x624604e2afaa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h599c966db81290c0 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x624604e2afaa - 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: 0x624604e2afaa - std::panicking::try::do_call::h336d5bb945571c50 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x624604e2afaa - std::panicking::try::hea8a9a2c11807957 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x624604e2afaa - std::panic::catch_unwind::hc46631a6d929f68d [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x624604e2afaa - std::thread::Builder::spawn_unchecked_::{{closure}}::he5729da5506c58d1 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x624604e2afaa - 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: 0x624604fc68db - as core::ops::function::FnOnce>::call_once::h5e2c5a5b1d7d1d9c [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x624604fc68db - as core::ops::function::FnOnce>::call_once::hc50cd23acd01680e [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x624604fc68db - 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: 0x76c7e2912aa4 - [INFO] [stdout] 46: 0x76c7e299fa34 - 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:342:38: [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/./rmetadRwpST\"\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: 0x624604fc2d22 - 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: 0x624604fc2d22 - 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: 0x624604fc2d22 - std::sys::backtrace::_print_fmt::h73b6844d523a91e6 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x624604fc2d22 - ::fmt::had50d3dbab4f9a49 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x624604fe8f83 - core::fmt::rt::Argument::fmt::h96dc2668ac588484 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/fmt/rt.rs:184:76 [INFO] [stdout] 5: 0x624604fe8f83 - core::fmt::write::h3c068850dd3fcd11 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/fmt/mod.rs:1480:21 [INFO] [stdout] 6: 0x624604fc03e3 - std::io::default_write_fmt::h9f5cac5e26eafb82 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x624604fc03e3 - std::io::Write::write_fmt::h9be88ac981c80255 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/io/mod.rs:1914:13 [INFO] [stdout] 8: 0x624604fc2b72 - std::sys::backtrace::BacktraceLock::print::h160d33c700b1accf [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x624604fc410c - std::panicking::default_hook::{{closure}}::hdccf862335980e92 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:300:22 [INFO] [stdout] 10: 0x624604fc3f62 - std::panicking::default_hook::h92ea296b4f4c5d78 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x624604e5e614 - as core::ops::function::Fn>::call::h58e2cb0c3aa8f900 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x624604e5e614 - test::test_main::{{closure}}::h068e739b3ff3ace9 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:136:21 [INFO] [stdout] 13: 0x624604fc4b83 - as core::ops::function::Fn>::call::h4dc3b8e0d98a0945 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x624604fc4b83 - std::panicking::rust_panic_with_hook::h53eb519a340d7090 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x624604fc485a - std::panicking::begin_panic_handler::{{closure}}::h1b012222d781940d [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x624604fc3219 - std::sys::backtrace::__rust_end_short_backtrace::hb1c00a6a74936045 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x624604fc44ed - __rustc[3fad54a3e94379e3]::rust_begin_unwind [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x624604e156f0 - core::panicking::panic_fmt::h5646b0c12be1dead [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x624604e15b86 - core::result::unwrap_failed::hc06d646aff6e2a9a [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/result.rs:1704:5 [INFO] [stdout] 20: 0x624604e20286 - core::result::Result::unwrap::h771f9c619fa7db12 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/result.rs:1109:23 [INFO] [stdout] 21: 0x624604e20286 - rustlings::exercise::test::test_exercise_with_output::ha6fdf05aff469ca3 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:342:19 [INFO] [stdout] 22: 0x624604e20087 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h42af272fe2df3c99 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:335:35 [INFO] [stdout] 23: 0x624604e17426 - core::ops::function::FnOnce::call_once::hc90214caa70a3121 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x624604e63f6b - core::ops::function::FnOnce::call_once::h36fc4a9de3ab6dc6 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x624604e63f6b - test::__rust_begin_short_backtrace::ha0a98bb69b358a31 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:638:18 [INFO] [stdout] 26: 0x624604e62f5f - test::run_test_in_process::{{closure}}::h8c178d13fba0a588 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:661:60 [INFO] [stdout] 27: 0x624604e62f5f - 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: 0x624604e62f5f - std::panicking::try::do_call::h4af5be696220e430 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x624604e62f5f - std::panicking::try::hbf49a526ff439d5e [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x624604e62f5f - std::panic::catch_unwind::h73db1b343ad1c705 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x624604e62f5f - test::run_test_in_process::hef059ed743ea6437 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:661:27 [INFO] [stdout] 32: 0x624604e62f5f - test::run_test::{{closure}}::h9508bce7fbf1ad82 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:582:43 [INFO] [stdout] 33: 0x624604e276b4 - test::run_test::{{closure}}::h70f94fa995999514 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/test/src/lib.rs:612:41 [INFO] [stdout] 34: 0x624604e276b4 - std::sys::backtrace::__rust_begin_short_backtrace::hfc7043e7c8324aca [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x624604e2afaa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h599c966db81290c0 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x624604e2afaa - 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: 0x624604e2afaa - std::panicking::try::do_call::h336d5bb945571c50 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x624604e2afaa - std::panicking::try::hea8a9a2c11807957 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x624604e2afaa - std::panic::catch_unwind::hc46631a6d929f68d [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x624604e2afaa - std::thread::Builder::spawn_unchecked_::{{closure}}::he5729da5506c58d1 [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x624604e2afaa - 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: 0x624604fc68db - as core::ops::function::FnOnce>::call_once::h5e2c5a5b1d7d1d9c [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x624604fc68db - as core::ops::function::FnOnce>::call_once::hc50cd23acd01680e [INFO] [stdout] at /rustc/a5948295b4bf4c6199457f1227e5d8f6e6b9f948/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x624604fc68db - 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: 0x76c7e2912aa4 - [INFO] [stdout] 46: 0x76c7e299fa34 - 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 0.19s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "e69adf8324d05a1c1b331e7aaa7f3ca8a9f228ca438e52eac34f9afc3e2349ff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e69adf8324d05a1c1b331e7aaa7f3ca8a9f228ca438e52eac34f9afc3e2349ff", kill_on_drop: false }` [INFO] [stdout] e69adf8324d05a1c1b331e7aaa7f3ca8a9f228ca438e52eac34f9afc3e2349ff