[INFO] cloning repository https://github.com/jwmurray/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jwmurray/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjwmurray%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjwmurray%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b5af58ce9dab5e3c446d28f35a7b7de2a39340d4 [INFO] testing jwmurray/rustlings against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjwmurray%2Frustlings" "/workspace/builds/worker-39/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-39/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jwmurray/rustlings on toolchain 722e1797249a965b6335aebd65d777f917e498f1 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jwmurray/rustlings [INFO] finished tweaking git repo https://github.com/jwmurray/rustlings [INFO] tweaked toml for git repo https://github.com/jwmurray/rustlings written to /workspace/builds/worker-39/source/Cargo.toml [INFO] crate git repo https://github.com/jwmurray/rustlings already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "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-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d361260bf6d6ffd34fefa3d9e33636ac16d1ba8b5b5b7c80668d9d329801b6b6 [INFO] running `Command { std: "docker" "start" "-a" "d361260bf6d6ffd34fefa3d9e33636ac16d1ba8b5b5b7c80668d9d329801b6b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d361260bf6d6ffd34fefa3d9e33636ac16d1ba8b5b5b7c80668d9d329801b6b6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d361260bf6d6ffd34fefa3d9e33636ac16d1ba8b5b5b7c80668d9d329801b6b6", kill_on_drop: false }` [INFO] [stdout] d361260bf6d6ffd34fefa3d9e33636ac16d1ba8b5b5b7c80668d9d329801b6b6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 735f1b6024593a733e12635a6f01f7caf78c88aca8184391cda8ac852922f2c2 [INFO] running `Command { std: "docker" "start" "-a" "735f1b6024593a733e12635a6f01f7caf78c88aca8184391cda8ac852922f2c2", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Compiling rand_core v0.4.0 [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling ucd-util v0.1.3 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling smallvec v0.6.9 [INFO] [stderr] Compiling utf8-ranges v1.0.2 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Compiling unicode-width v0.1.5 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling serde v1.0.92 [INFO] [stderr] Compiling lazy_static v0.2.11 [INFO] [stderr] Compiling same-file v1.0.4 [INFO] [stderr] Compiling lazycell v1.2.1 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling lock_api v0.2.0 [INFO] [stderr] Compiling regex-syntax v0.6.6 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling regex-syntax v0.5.6 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling walkdir v2.2.7 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Compiling aho-corasick v0.7.3 [INFO] [stderr] Compiling aho-corasick v0.6.10 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling termios v0.3.1 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling inotify-sys v0.1.3 [INFO] [stderr] Compiling clicolors-control v1.0.0 [INFO] [stderr] Compiling clicolors-control v0.2.0 [INFO] [stderr] Compiling filetime v0.2.5 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling inotify v0.6.1 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling mio-extras v2.0.5 [INFO] [stderr] Compiling notify v4.0.12 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Compiling console v0.7.5 [INFO] [stderr] Compiling console v0.6.2 [INFO] [stderr] Compiling indicatif v0.9.0 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v1.4.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 21.83s [INFO] running `Command { std: "docker" "inspect" "735f1b6024593a733e12635a6f01f7caf78c88aca8184391cda8ac852922f2c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "735f1b6024593a733e12635a6f01f7caf78c88aca8184391cda8ac852922f2c2", kill_on_drop: false }` [INFO] [stdout] 735f1b6024593a733e12635a6f01f7caf78c88aca8184391cda8ac852922f2c2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5e29ebfa10e54e21508a81baad3bddb0de5dfdf0a305ff8f85df3b47a3091fc8 [INFO] running `Command { std: "docker" "start" "-a" "5e29ebfa10e54e21508a81baad3bddb0de5dfdf0a305ff8f85df3b47a3091fc8", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling ryu v0.2.8 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling itoa v0.4.4 [INFO] [stderr] Compiling predicates-core v1.0.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling predicates-tree v1.0.0 [INFO] [stderr] Compiling predicates v1.0.1 [INFO] [stderr] Compiling serde_json v1.0.39 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v1.4.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 4.61s [INFO] running `Command { std: "docker" "inspect" "5e29ebfa10e54e21508a81baad3bddb0de5dfdf0a305ff8f85df3b47a3091fc8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5e29ebfa10e54e21508a81baad3bddb0de5dfdf0a305ff8f85df3b47a3091fc8", kill_on_drop: false }` [INFO] [stdout] 5e29ebfa10e54e21508a81baad3bddb0de5dfdf0a305ff8f85df3b47a3091fc8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] ceec88d9589171946d9bb2a60d559a4014eec9f07ed26ecb0cb40b1e2db7c0c4 [INFO] running `Command { std: "docker" "start" "-a" "ceec88d9589171946d9bb2a60d559a4014eec9f07ed26ecb0cb40b1e2db7c0c4", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.11s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rustlings-15f60ba33e0eb648) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test exercise::test::test_clean ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_clean stdout ---- [INFO] [stdout] thread 'exercise::test::test_clean' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }', src/exercise.rs:71:36 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55bf677e5bac - std::backtrace_rs::backtrace::libunwind::trace::h7630ba4cba718aa0 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x55bf677e5bac - std::backtrace_rs::backtrace::trace_unsynchronized::he7498e79c157f5ac [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55bf677e5bac - std::sys_common::backtrace::_print_fmt::hdaebadaee17bca49 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x55bf677e5bac - ::fmt::h82b0e3aaf8a96140 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x55bf678087bc - core::fmt::write::h72801a82c94e6ff1 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/fmt/mod.rs:1149:17 [INFO] [stdout] 5: 0x55bf677e1ad5 - std::io::Write::write_fmt::h21d7683cabdb4c35 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/io/mod.rs:1697:15 [INFO] [stdout] 6: 0x55bf677e7600 - std::sys_common::backtrace::_print::h1c9a1d19c48821c1 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x55bf677e7600 - std::sys_common::backtrace::print::h7ce8802039fa9d0e [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x55bf677e7600 - std::panicking::default_hook::{{closure}}::hb2a74a8c1499c326 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:211:50 [INFO] [stdout] 9: 0x55bf677e71e6 - std::panicking::default_hook::hf4f180b00076f2b2 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:225:9 [INFO] [stdout] 10: 0x55bf677e7cb4 - std::panicking::rust_panic_with_hook::he85ce8435493b711 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:606:17 [INFO] [stdout] 11: 0x55bf677e7790 - std::panicking::begin_panic_handler::{{closure}}::h31e15f69e6235bd2 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:502:13 [INFO] [stdout] 12: 0x55bf677e6064 - std::sys_common::backtrace::__rust_end_short_backtrace::hfce2fadb61aaa3ae [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:139:18 [INFO] [stdout] 13: 0x55bf677e76f9 - rust_begin_unwind [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:498:5 [INFO] [stdout] 14: 0x55bf6778b861 - core::panicking::panic_fmt::h7b8580d81fcbbacd [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/panicking.rs:107:14 [INFO] [stdout] 15: 0x55bf6778b953 - core::result::unwrap_failed::h885d3f7beb571353 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/result.rs:1613:5 [INFO] [stdout] 16: 0x55bf6778c0fd - core::result::Result::unwrap::hebcf65c449b668a4 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/result.rs:1295:23 [INFO] [stdout] 17: 0x55bf6778cb83 - rustlings::exercise::test::test_clean::hec9df44a2be4ee7d [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:71:9 [INFO] [stdout] 18: 0x55bf6778cb3a - rustlings::exercise::test::test_clean::{{closure}}::h1b38e3eef3aa722a [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:70:5 [INFO] [stdout] 19: 0x55bf6778cace - core::ops::function::FnOnce::call_once::h41ba1aa16f4ffdf1 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 20: 0x55bf677c1253 - core::ops::function::FnOnce::call_once::h449577f1c5b077cb [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 21: 0x55bf677c1253 - test::__rust_begin_short_backtrace::h8c2a0a5090591869 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/test/src/lib.rs:585:5 [INFO] [stdout] 22: 0x55bf677bfde7 - as core::ops::function::FnOnce>::call_once::hea00a22128a38543 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 23: 0x55bf677bfde7 - as core::ops::function::FnOnce<()>>::call_once::he10b35c3c50d78a0 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 24: 0x55bf677bfde7 - std::panicking::try::do_call::hc868e78bbc5af2ab [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:406:40 [INFO] [stdout] 25: 0x55bf677bfde7 - std::panicking::try::he468aede74df1b04 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:370:19 [INFO] [stdout] 26: 0x55bf677bfde7 - std::panic::catch_unwind::hce3c9152e1cf772d [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panic.rs:133:14 [INFO] [stdout] 27: 0x55bf677bfde7 - test::run_test_in_process::h9c4ab8162080cf8c [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/test/src/lib.rs:608:18 [INFO] [stdout] 28: 0x55bf677bfde7 - test::run_test::run_test_inner::{{closure}}::he9483433cef16afe [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/test/src/lib.rs:500:39 [INFO] [stdout] 29: 0x55bf6778d12e - test::run_test::run_test_inner::{{closure}}::h479f1f872a5501ea [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/test/src/lib.rs:527:37 [INFO] [stdout] 30: 0x55bf6778d12e - std::sys_common::backtrace::__rust_begin_short_backtrace::h0f1e9b1f279687bc [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys_common/backtrace.rs:123:18 [INFO] [stdout] 31: 0x55bf67791f58 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::he5560613c5f5cb83 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/thread/mod.rs:484:17 [INFO] [stdout] 32: 0x55bf67791f58 - as core::ops::function::FnOnce<()>>::call_once::h8190a68cb05ab92f [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 33: 0x55bf67791f58 - std::panicking::try::do_call::h6ae22f5ac22596e4 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:406:40 [INFO] [stdout] 34: 0x55bf67791f58 - std::panicking::try::h2381c25487d6a7c2 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panicking.rs:370:19 [INFO] [stdout] 35: 0x55bf67791f58 - std::panic::catch_unwind::hfe902f4d5c9d7b6d [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/panic.rs:133:14 [INFO] [stdout] 36: 0x55bf67791f58 - std::thread::Builder::spawn_unchecked::{{closure}}::h547fad40771a584e [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/thread/mod.rs:483:30 [INFO] [stdout] 37: 0x55bf67791f58 - core::ops::function::FnOnce::call_once{{vtable.shim}}::he8602a9971738410 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 38: 0x55bf677ec8f3 - as core::ops::function::FnOnce>::call_once::he162a5c338a10a39 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 39: 0x55bf677ec8f3 - as core::ops::function::FnOnce>::call_once::hb27497b21740dd97 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 40: 0x55bf677ec8f3 - std::sys::unix::thread::Thread::new::thread_start::he467e990e49c5136 [INFO] [stdout] at /rustc/722e1797249a965b6335aebd65d777f917e498f1/library/std/src/sys/unix/thread.rs:106:17 [INFO] [stdout] 41: 0x7fdbe2909609 - start_thread [INFO] [stdout] 42: 0x7fdbe2a60293 - clone [INFO] [stdout] 43: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] exercise::test::test_clean [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--bin rustlings' [INFO] running `Command { std: "docker" "inspect" "ceec88d9589171946d9bb2a60d559a4014eec9f07ed26ecb0cb40b1e2db7c0c4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ceec88d9589171946d9bb2a60d559a4014eec9f07ed26ecb0cb40b1e2db7c0c4", kill_on_drop: false }` [INFO] [stdout] ceec88d9589171946d9bb2a60d559a4014eec9f07ed26ecb0cb40b1e2db7c0c4