[INFO] cloning repository https://github.com/harrjdk/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/harrjdk/rustling-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharrjdk%2Frustling-solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharrjdk%2Frustling-solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fca4a241b1e4031d947e2b46e5867196f9f476a1 [INFO] testing harrjdk/rustling-solutions against 1.84.0 for beta-1.85-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharrjdk%2Frustling-solutions" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/harrjdk/rustling-solutions on toolchain 1.84.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.84.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/harrjdk/rustling-solutions [INFO] finished tweaking git repo https://github.com/harrjdk/rustling-solutions [INFO] tweaked toml for git repo https://github.com/harrjdk/rustling-solutions written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/harrjdk/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" "+1.84.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d0023e5c89c1b87c607d1fc54dc6392aa907e5bd3c70a4e192c935c62b4c4f78 [INFO] running `Command { std: "docker" "start" "-a" "d0023e5c89c1b87c607d1fc54dc6392aa907e5bd3c70a4e192c935c62b4c4f78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d0023e5c89c1b87c607d1fc54dc6392aa907e5bd3c70a4e192c935c62b4c4f78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d0023e5c89c1b87c607d1fc54dc6392aa907e5bd3c70a4e192c935c62b4c4f78", kill_on_drop: false }` [INFO] [stdout] d0023e5c89c1b87c607d1fc54dc6392aa907e5bd3c70a4e192c935c62b4c4f78 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a4bfaeb8356f4b683f081211423d2eedfc90f6e39e6f5dac470b85ffaba355d9 [INFO] running `Command { std: "docker" "start" "-a" "a4bfaeb8356f4b683f081211423d2eedfc90f6e39e6f5dac470b85ffaba355d9", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling cfg-if v1.0.0 [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 autocfg v1.0.1 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling instant v0.1.10 [INFO] [stderr] Compiling smallvec v1.6.1 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling lock_api v0.4.4 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling parking_lot_core v0.8.3 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling termios v0.3.3 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling number_prefix v0.2.8 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling clicolors-control v1.0.1 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling console v0.14.1 [INFO] [stderr] Compiling console v0.7.7 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling indicatif v0.10.3 [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 18.73s [INFO] running `Command { std: "docker" "inspect" "a4bfaeb8356f4b683f081211423d2eedfc90f6e39e6f5dac470b85ffaba355d9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a4bfaeb8356f4b683f081211423d2eedfc90f6e39e6f5dac470b85ffaba355d9", kill_on_drop: false }` [INFO] [stdout] a4bfaeb8356f4b683f081211423d2eedfc90f6e39e6f5dac470b85ffaba355d9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 167e04cfc6c39d118ab1333467ef256716bfb7827b898307e980f4f2804e5026 [INFO] running `Command { std: "docker" "start" "-a" "167e04cfc6c39d118ab1333467ef256716bfb7827b898307e980f4f2804e5026", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling difference v2.0.0 [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 3.89s [INFO] running `Command { std: "docker" "inspect" "167e04cfc6c39d118ab1333467ef256716bfb7827b898307e980f4f2804e5026", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "167e04cfc6c39d118ab1333467ef256716bfb7827b898307e980f4f2804e5026", kill_on_drop: false }` [INFO] [stdout] 167e04cfc6c39d118ab1333467ef256716bfb7827b898307e980f4f2804e5026 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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@sha256:86ea7c7af713d31e8cfdb68a6d0db50b5cf7cbeecde3d112f9f257f747318d36" "/opt/rustwide/cargo-home/bin/cargo" "+1.84.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] d0b1c4867a2a63baeffdaec315154d028fb43c6d76b5b684378469ec1bd328bc [INFO] running `Command { std: "docker" "start" "-a" "d0b1c4867a2a63baeffdaec315154d028fb43c6d76b5b684378469ec1bd328bc", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-61f175e9033ae7e7) [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] 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: 0x639cf611239a - std::backtrace_rs::backtrace::libunwind::trace::hfe0e1def394da018 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x639cf611239a - std::backtrace_rs::backtrace::trace_unsynchronized::h96fbb6d117554616 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x639cf611239a - std::sys::backtrace::_print_fmt::he1169c6f8956325b [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x639cf611239a - ::fmt::ha4a311b32f6b4ad8 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x639cf61380b3 - core::fmt::rt::Argument::fmt::h8ccd2627d2418ed3 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x639cf61380b3 - core::fmt::write::h1866771663f62b81 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/fmt/mod.rs:1189:21 [INFO] [stdout] 6: 0x639cf610f523 - std::io::Write::write_fmt::h2df399c9fb8c6039 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/io/mod.rs:1884:15 [INFO] [stdout] 7: 0x639cf61121e2 - std::sys::backtrace::BacktraceLock::print::hddd3a9918ce29aa7 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x639cf611381d - std::panicking::default_hook::{{closure}}::h791f75256b902d7d [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:268:22 [INFO] [stdout] 9: 0x639cf6113627 - std::panicking::default_hook::h82cc572fcb0d8cd7 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:292:9 [INFO] [stdout] 10: 0x639cf5fa27c7 - as core::ops::function::Fn>::call::h47f4385e5c05a6bc [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/alloc/src/boxed.rs:1986:9 [INFO] [stdout] 11: 0x639cf5fa27c7 - test::test_main::{{closure}}::h592b6187ee9bbe51 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/test/src/lib.rs:134:21 [INFO] [stdout] 12: 0x639cf6113ec8 - as core::ops::function::Fn>::call::h80408f032954f187 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/alloc/src/boxed.rs:1986:9 [INFO] [stdout] 13: 0x639cf6113ec8 - std::panicking::rust_panic_with_hook::he21644cc2707f2c4 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:809:13 [INFO] [stdout] 14: 0x639cf6113c8a - std::panicking::begin_panic_handler::{{closure}}::h42f7c414fed3cad9 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:674:13 [INFO] [stdout] 15: 0x639cf6112879 - std::sys::backtrace::__rust_end_short_backtrace::ha26cf5766b4e8c65 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x639cf611391c - rust_begin_unwind [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:665:5 [INFO] [stdout] 17: 0x639cf5f581d0 - core::panicking::panic_fmt::h74866b78e934b1c0 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/panicking.rs:76:14 [INFO] [stdout] 18: 0x639cf5f58656 - core::result::unwrap_failed::h899ed7ab2ccb8159 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/result.rs:1699:5 [INFO] [stdout] 19: 0x639cf5f5e8fa - core::result::Result::unwrap::hd7006607b207095c [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/result.rs:1104:23 [INFO] [stdout] 20: 0x639cf5f5e8fa - rustlings::exercise::test::test_clean::h25ae4d6d563981f4 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:270:9 [INFO] [stdout] 21: 0x639cf5f5e837 - rustlings::exercise::test::test_clean::{{closure}}::hfb5053bcc0ac9fb1 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:20 [INFO] [stdout] 22: 0x639cf5f606a6 - core::ops::function::FnOnce::call_once::h387673aa760c9aba [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x639cf5fa737b - core::ops::function::FnOnce::call_once::h2f54be8ccda9ff77 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x639cf5fa737b - test::__rust_begin_short_backtrace::h505f4667df5bf10c [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/test/src/lib.rs:632:18 [INFO] [stdout] 25: 0x639cf5fa6cd8 - test::run_test_in_process::{{closure}}::h5ed3028e6069c117 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/test/src/lib.rs:655:60 [INFO] [stdout] 26: 0x639cf5fa6cd8 - as core::ops::function::FnOnce<()>>::call_once::hbf705be6aea7c287 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x639cf5fa6cd8 - std::panicking::try::do_call::h555223a41631f02b [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:557:40 [INFO] [stdout] 28: 0x639cf5fa6cd8 - std::panicking::try::he81e496d432108c4 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:520:19 [INFO] [stdout] 29: 0x639cf5fa6cd8 - std::panic::catch_unwind::hb2ff356e76867b52 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panic.rs:358:14 [INFO] [stdout] 30: 0x639cf5fa6cd8 - test::run_test_in_process::h665bcd2e01d69f5b [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/test/src/lib.rs:655:27 [INFO] [stdout] 31: 0x639cf5fa6cd8 - test::run_test::{{closure}}::ha58fbc9c79c6786d [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/test/src/lib.rs:576:43 [INFO] [stdout] 32: 0x639cf5f6a77a - test::run_test::{{closure}}::h958602d5fcb1d647 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/test/src/lib.rs:606:41 [INFO] [stdout] 33: 0x639cf5f6a77a - std::sys::backtrace::__rust_begin_short_backtrace::h7ca2fb16f64faa0f [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x639cf5f6e034 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hebe77fbe87ddae61 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/thread/mod.rs:561:17 [INFO] [stdout] 35: 0x639cf5f6e034 - as core::ops::function::FnOnce<()>>::call_once::h5e26d6a69f85d1d6 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x639cf5f6e034 - std::panicking::try::do_call::h9787fac579f00884 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:557:40 [INFO] [stdout] 37: 0x639cf5f6e034 - std::panicking::try::h788012b555fbd7c5 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:520:19 [INFO] [stdout] 38: 0x639cf5f6e034 - std::panic::catch_unwind::hd194f26f99a98fb5 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panic.rs:358:14 [INFO] [stdout] 39: 0x639cf5f6e034 - std::thread::Builder::spawn_unchecked_::{{closure}}::h31c0dcba34ed449c [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/thread/mod.rs:559:30 [INFO] [stdout] 40: 0x639cf5f6e034 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h60302d9c688101a6 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x639cf6117feb - as core::ops::function::FnOnce>::call_once::h9578f6ea1d4e1c4b [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/alloc/src/boxed.rs:1972:9 [INFO] [stdout] 42: 0x639cf6117feb - as core::ops::function::FnOnce>::call_once::hf4a2f438d8019348 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/alloc/src/boxed.rs:1972:9 [INFO] [stdout] 43: 0x639cf6117feb - std::sys::pal::unix::thread::Thread::new::thread_start::h14f1eb868ff90fc9 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x7c005c4ddac3 - [INFO] [stdout] 45: 0x7c005c56ea04 - clone [INFO] [stdout] 46: 0x0 - [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_exercise_with_output 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/./rmetaPYKLs9\"\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: 0x639cf611239a - std::backtrace_rs::backtrace::libunwind::trace::hfe0e1def394da018 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x639cf611239a - std::backtrace_rs::backtrace::trace_unsynchronized::h96fbb6d117554616 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x639cf611239a - std::sys::backtrace::_print_fmt::he1169c6f8956325b [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x639cf611239a - ::fmt::ha4a311b32f6b4ad8 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x639cf61380b3 - core::fmt::rt::Argument::fmt::h8ccd2627d2418ed3 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x639cf61380b3 - core::fmt::write::h1866771663f62b81 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/fmt/mod.rs:1189:21 [INFO] [stdout] 6: 0x639cf610f523 - std::io::Write::write_fmt::h2df399c9fb8c6039 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/io/mod.rs:1884:15 [INFO] [stdout] 7: 0x639cf61121e2 - std::sys::backtrace::BacktraceLock::print::hddd3a9918ce29aa7 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x639cf611381d - std::panicking::default_hook::{{closure}}::h791f75256b902d7d [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:268:22 [INFO] [stdout] 9: 0x639cf6113627 - std::panicking::default_hook::h82cc572fcb0d8cd7 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:292:9 [INFO] [stdout] 10: 0x639cf5fa27c7 - as core::ops::function::Fn>::call::h47f4385e5c05a6bc [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/alloc/src/boxed.rs:1986:9 [INFO] [stdout] 11: 0x639cf5fa27c7 - test::test_main::{{closure}}::h592b6187ee9bbe51 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/test/src/lib.rs:134:21 [INFO] [stdout] 12: 0x639cf6113ec8 - as core::ops::function::Fn>::call::h80408f032954f187 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/alloc/src/boxed.rs:1986:9 [INFO] [stdout] 13: 0x639cf6113ec8 - std::panicking::rust_panic_with_hook::he21644cc2707f2c4 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:809:13 [INFO] [stdout] 14: 0x639cf6113c8a - std::panicking::begin_panic_handler::{{closure}}::h42f7c414fed3cad9 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:674:13 [INFO] [stdout] 15: 0x639cf6112879 - std::sys::backtrace::__rust_end_short_backtrace::ha26cf5766b4e8c65 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x639cf611391c - rust_begin_unwind [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:665:5 [INFO] [stdout] 17: 0x639cf5f581d0 - core::panicking::panic_fmt::h74866b78e934b1c0 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/panicking.rs:76:14 [INFO] [stdout] 18: 0x639cf5f58656 - core::result::unwrap_failed::h899ed7ab2ccb8159 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/result.rs:1699:5 [INFO] [stdout] 19: 0x639cf5f5f746 - core::result::Result::unwrap::h365b0481e340b186 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/result.rs:1104:23 [INFO] [stdout] 20: 0x639cf5f5f746 - rustlings::exercise::test::test_exercise_with_output::h80fae556beb1c12e [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:343:19 [INFO] [stdout] 21: 0x639cf5f5f557 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h66251ccda8a771a2 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:336:35 [INFO] [stdout] 22: 0x639cf5f60666 - core::ops::function::FnOnce::call_once::h316b40c5fb3abb03 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x639cf5fa737b - core::ops::function::FnOnce::call_once::h2f54be8ccda9ff77 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x639cf5fa737b - test::__rust_begin_short_backtrace::h505f4667df5bf10c [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/test/src/lib.rs:632:18 [INFO] [stdout] 25: 0x639cf5fa6cd8 - test::run_test_in_process::{{closure}}::h5ed3028e6069c117 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/test/src/lib.rs:655:60 [INFO] [stdout] 26: 0x639cf5fa6cd8 - as core::ops::function::FnOnce<()>>::call_once::hbf705be6aea7c287 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x639cf5fa6cd8 - std::panicking::try::do_call::h555223a41631f02b [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:557:40 [INFO] [stdout] 28: 0x639cf5fa6cd8 - std::panicking::try::he81e496d432108c4 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:520:19 [INFO] [stdout] 29: 0x639cf5fa6cd8 - std::panic::catch_unwind::hb2ff356e76867b52 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panic.rs:358:14 [INFO] [stdout] 30: 0x639cf5fa6cd8 - test::run_test_in_process::h665bcd2e01d69f5b [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/test/src/lib.rs:655:27 [INFO] [stdout] 31: 0x639cf5fa6cd8 - test::run_test::{{closure}}::ha58fbc9c79c6786d [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/test/src/lib.rs:576:43 [INFO] [stdout] 32: 0x639cf5f6a77a - test::run_test::{{closure}}::h958602d5fcb1d647 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/test/src/lib.rs:606:41 [INFO] [stdout] 33: 0x639cf5f6a77a - std::sys::backtrace::__rust_begin_short_backtrace::h7ca2fb16f64faa0f [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x639cf5f6e034 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hebe77fbe87ddae61 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/thread/mod.rs:561:17 [INFO] [stdout] 35: 0x639cf5f6e034 - as core::ops::function::FnOnce<()>>::call_once::h5e26d6a69f85d1d6 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x639cf5f6e034 - std::panicking::try::do_call::h9787fac579f00884 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:557:40 [INFO] [stdout] 37: 0x639cf5f6e034 - std::panicking::try::h788012b555fbd7c5 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panicking.rs:520:19 [INFO] [stdout] 38: 0x639cf5f6e034 - std::panic::catch_unwind::hd194f26f99a98fb5 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/panic.rs:358:14 [INFO] [stdout] 39: 0x639cf5f6e034 - std::thread::Builder::spawn_unchecked_::{{closure}}::h31c0dcba34ed449c [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/thread/mod.rs:559:30 [INFO] [stdout] 40: 0x639cf5f6e034 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h60302d9c688101a6 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x639cf6117feb - as core::ops::function::FnOnce>::call_once::h9578f6ea1d4e1c4b [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/alloc/src/boxed.rs:1972:9 [INFO] [stdout] 42: 0x639cf6117feb - as core::ops::function::FnOnce>::call_once::hf4a2f438d8019348 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/alloc/src/boxed.rs:1972:9 [INFO] [stdout] 43: 0x639cf6117feb - std::sys::pal::unix::thread::Thread::new::thread_start::h14f1eb868ff90fc9 [INFO] [stdout] at /rustc/9fc6b43126469e3858e2fe86cafb4f0fd5068869/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x7c005c4ddac3 - [INFO] [stdout] 45: 0x7c005c56ea04 - 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 0.12s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "d0b1c4867a2a63baeffdaec315154d028fb43c6d76b5b684378469ec1bd328bc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d0b1c4867a2a63baeffdaec315154d028fb43c6d76b5b684378469ec1bd328bc", kill_on_drop: false }` [INFO] [stdout] d0b1c4867a2a63baeffdaec315154d028fb43c6d76b5b684378469ec1bd328bc