[INFO] cloning repository https://github.com/yuanotes/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yuanotes/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuanotes%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuanotes%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 70946b85e536e80e70ed9505cb650ca0a3a1fbb5 [INFO] testing yuanotes/rustlings against master#23949593103d03a82c7ebc2e84434ce6c6edc561 for pr-115235-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyuanotes%2Frustlings" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/yuanotes/rustlings on toolchain 23949593103d03a82c7ebc2e84434ce6c6edc561 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/yuanotes/rustlings [INFO] finished tweaking git repo https://github.com/yuanotes/rustlings [INFO] tweaked toml for git repo https://github.com/yuanotes/rustlings written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/yuanotes/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" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded notify v4.0.12 [INFO] [stderr] Downloaded console v0.7.5 [INFO] [stderr] Downloaded clicolors-control v0.2.0 [INFO] [stderr] Downloaded walkdir v2.2.7 [INFO] [stderr] Downloaded inotify v0.6.1 [INFO] [stderr] Downloaded lock_api v0.2.0 [INFO] [stderr] Downloaded redox_syscall v0.1.54 [INFO] [stderr] Downloaded same-file v1.0.4 [INFO] [stderr] Downloaded aho-corasick v0.6.10 [INFO] [stderr] Downloaded clicolors-control v1.0.0 [INFO] [stderr] Downloaded lazy_static v1.3.0 [INFO] [stderr] Downloaded autocfg v0.1.4 [INFO] [stderr] Downloaded log v0.4.6 [INFO] [stderr] Downloaded ryu v0.2.8 [INFO] [stderr] Downloaded aho-corasick v0.7.3 [INFO] [stderr] Downloaded regex v0.2.11 [INFO] [stderr] Downloaded regex-syntax v0.6.6 [INFO] [stderr] Downloaded indicatif v0.9.0 [INFO] [stderr] Downloaded regex v1.1.6 [INFO] [stderr] Downloaded regex-syntax v0.5.6 [INFO] [stderr] Downloaded libc v0.2.58 [INFO] [stderr] Downloaded syn v0.15.34 [INFO] [stderr] Downloaded serde_derive v1.0.92 [INFO] [stderr] Downloaded predicates v1.0.1 [INFO] [stderr] Downloaded parking_lot_core v0.5.0 [INFO] [stderr] Downloaded ucd-util v0.1.3 [INFO] [stderr] Downloaded inotify-sys v0.1.3 [INFO] [stderr] Downloaded encode_unicode v0.3.5 [INFO] [stderr] Downloaded parking_lot v0.8.0 [INFO] [stderr] Downloaded predicates-core v1.0.0 [INFO] [stderr] Downloaded termion v1.5.2 [INFO] [stderr] Downloaded termios v0.3.1 [INFO] [stderr] Downloaded mio-extras v2.0.5 [INFO] [stderr] Downloaded quote v0.6.12 [INFO] [stderr] Downloaded smallvec v0.6.9 [INFO] [stderr] Downloaded utf8-ranges v1.0.2 [INFO] [stderr] Downloaded console v0.6.2 [INFO] [stderr] Downloaded serde_json v1.0.39 [INFO] [stderr] Downloaded memchr v2.2.0 [INFO] [stderr] Downloaded filetime v0.2.5 [INFO] [stderr] Downloaded serde v1.0.92 [INFO] [stderr] Downloaded predicates-tree v1.0.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 011d4979baa36daf8b442501cb1ade2ac8b224d9fea7684fd6ab9cb16a4a1d8e [INFO] running `Command { std: "docker" "start" "-a" "011d4979baa36daf8b442501cb1ade2ac8b224d9fea7684fd6ab9cb16a4a1d8e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "011d4979baa36daf8b442501cb1ade2ac8b224d9fea7684fd6ab9cb16a4a1d8e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "011d4979baa36daf8b442501cb1ade2ac8b224d9fea7684fd6ab9cb16a4a1d8e", kill_on_drop: false }` [INFO] [stdout] 011d4979baa36daf8b442501cb1ade2ac8b224d9fea7684fd6ab9cb16a4a1d8e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 57e73229b007f7e0c17d40a85b7c64858f3d36f0dd3531990cf513a8d8b2de67 [INFO] running `Command { std: "docker" "start" "-a" "57e73229b007f7e0c17d40a85b7c64858f3d36f0dd3531990cf513a8d8b2de67", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling rand_core v0.4.0 [INFO] [stderr] Compiling autocfg v0.1.4 [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 proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling unicode-width v0.1.5 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling utf8-ranges v1.0.2 [INFO] [stderr] Compiling smallvec v0.6.9 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling regex-syntax v0.6.6 [INFO] [stderr] Compiling lock_api v0.2.0 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling lazy_static v0.2.11 [INFO] [stderr] Compiling serde v1.0.92 [INFO] [stderr] Compiling regex-syntax v0.5.6 [INFO] [stderr] Compiling same-file v1.0.4 [INFO] [stderr] Compiling lazycell v1.2.1 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Compiling walkdir v2.2.7 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling aho-corasick v0.7.3 [INFO] [stderr] Compiling aho-corasick v0.6.10 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling termios v0.3.1 [INFO] [stderr] Compiling clicolors-control v1.0.0 [INFO] [stderr] Compiling inotify-sys v0.1.3 [INFO] [stderr] Compiling filetime v0.2.5 [INFO] [stderr] Compiling clicolors-control v0.2.0 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling inotify v0.6.1 [INFO] [stderr] Compiling quote v0.6.12 [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 v1.3.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 37.31s [INFO] running `Command { std: "docker" "inspect" "57e73229b007f7e0c17d40a85b7c64858f3d36f0dd3531990cf513a8d8b2de67", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "57e73229b007f7e0c17d40a85b7c64858f3d36f0dd3531990cf513a8d8b2de67", kill_on_drop: false }` [INFO] [stdout] 57e73229b007f7e0c17d40a85b7c64858f3d36f0dd3531990cf513a8d8b2de67 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a514af6028b7b1ba6d2dacd0c9a5eb03156c724f07d49ef1f20c8a649de01fb2 [INFO] running `Command { std: "docker" "start" "-a" "a514af6028b7b1ba6d2dacd0c9a5eb03156c724f07d49ef1f20c8a649de01fb2", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v0.2.8 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling predicates-core v1.0.0 [INFO] [stderr] Compiling itoa v0.4.4 [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 v1.3.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.98s [INFO] running `Command { std: "docker" "inspect" "a514af6028b7b1ba6d2dacd0c9a5eb03156c724f07d49ef1f20c8a649de01fb2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a514af6028b7b1ba6d2dacd0c9a5eb03156c724f07d49ef1f20c8a649de01fb2", kill_on_drop: false }` [INFO] [stdout] a514af6028b7b1ba6d2dacd0c9a5eb03156c724f07d49ef1f20c8a649de01fb2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+23949593103d03a82c7ebc2e84434ce6c6edc561" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8a86ab141fb2e73344fe86dccdefea603a10e133ad727b2b64f347346f2068fc [INFO] running `Command { std: "docker" "start" "-a" "8a86ab141fb2e73344fe86dccdefea603a10e133ad727b2b64f347346f2068fc", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-be66ebe07cce308a) [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stdout] test exercise::test::test_clean ... FAILED [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [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:71:36: [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: 0x556313e9829c - std::backtrace_rs::backtrace::libunwind::trace::hc56bfd85f78f2ac1 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x556313e9829c - std::backtrace_rs::backtrace::trace_unsynchronized::h3a4cd0ee39c2ec51 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x556313e9829c - std::sys_common::backtrace::_print_fmt::h7ec874d1114e2ca4 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x556313e9829c - ::fmt::h9409967845944e27 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x556313ec1f5c - core::fmt::rt::Argument::fmt::h3548c9d6e288e4b2 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/core/src/fmt/rt.rs:138:9 [INFO] [stdout] 5: 0x556313ec1f5c - core::fmt::write::h31bd00fc0f85031b [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/core/src/fmt/mod.rs:1094:21 [INFO] [stdout] 6: 0x556313e9534e - std::io::Write::write_fmt::hd97b56c28d49e8d5 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/io/mod.rs:1714:15 [INFO] [stdout] 7: 0x556313e98084 - std::sys_common::backtrace::_print::h8ab9a59ea8fc9a86 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x556313e98084 - std::sys_common::backtrace::print::hfe7afa943e316a5b [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x556313e9a04a - std::panicking::panic_hook_with_disk_dump::{{closure}}::hae52bf9a035c21dd [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/panicking.rs:280:22 [INFO] [stdout] 10: 0x556313e99c0d - std::panicking::panic_hook_with_disk_dump::hb6c613677d0ff679 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/panicking.rs:311:9 [INFO] [stdout] 11: 0x556313e6644c - as core::ops::function::Fn>::call::h70da65d4ac9eaaa2 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/alloc/src/boxed.rs:2021:9 [INFO] [stdout] 12: 0x556313e6644c - test::test_main::{{closure}}::h436fe668754d7667 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/test/src/lib.rs:136:21 [INFO] [stdout] 13: 0x556313e9a7d3 - as core::ops::function::Fn>::call::h98627c2cfbd34c2e [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/alloc/src/boxed.rs:2021:9 [INFO] [stdout] 14: 0x556313e9a7d3 - std::panicking::rust_panic_with_hook::hd82d7066cdf9e06f [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/panicking.rs:757:13 [INFO] [stdout] 15: 0x556313e9a551 - std::panicking::begin_panic_handler::{{closure}}::hf97c71166d409481 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/panicking.rs:631:13 [INFO] [stdout] 16: 0x556313e987c6 - std::sys_common::backtrace::__rust_end_short_backtrace::haa22df65c16edaa5 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/sys_common/backtrace.rs:170:18 [INFO] [stdout] 17: 0x556313e9a292 - rust_begin_unwind [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/panicking.rs:619:5 [INFO] [stdout] 18: 0x556313e315f5 - core::panicking::panic_fmt::h0e243d6d1945608c [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x556313e31a93 - core::result::unwrap_failed::h0462c3c2bed88698 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/core/src/result.rs:1652:5 [INFO] [stdout] 20: 0x556313e323eb - core::result::Result::unwrap::h182333f40a6fdcad [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/core/src/result.rs:1077:23 [INFO] [stdout] 21: 0x556313e328d1 - rustlings::exercise::test::test_clean::haf310ab2bb576d5a [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:71:9 [INFO] [stdout] 22: 0x556313e32857 - rustlings::exercise::test::test_clean::{{closure}}::he0877fcfe1fca0b4 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:70:21 [INFO] [stdout] 23: 0x556313e322f6 - core::ops::function::FnOnce::call_once::h077d03c5cce77ca1 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x556313e6b57f - core::ops::function::FnOnce::call_once::hf5a9c4e4ad819183 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x556313e6b57f - test::__rust_begin_short_backtrace::ha85af04d2b493cbd [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/test/src/lib.rs:626:18 [INFO] [stdout] 26: 0x556313e6a56e - test::run_test_in_process::{{closure}}::h80bae6710d6987aa [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/test/src/lib.rs:649:60 [INFO] [stdout] 27: 0x556313e6a56e - as core::ops::function::FnOnce<()>>::call_once::h1e8456d02dd6a27f [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 28: 0x556313e6a56e - std::panicking::try::do_call::h70bdb29e697eb37f [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/panicking.rs:526:40 [INFO] [stdout] 29: 0x556313e6a56e - std::panicking::try::hac0a5b5cab93a94f [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/panicking.rs:490:19 [INFO] [stdout] 30: 0x556313e6a56e - std::panic::catch_unwind::h242aae5a8ee61348 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x556313e6a56e - test::run_test_in_process::hb95e3471d249e80a [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/test/src/lib.rs:649:27 [INFO] [stdout] 32: 0x556313e6a56e - test::run_test::{{closure}}::he4945c759a6bb284 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/test/src/lib.rs:572:43 [INFO] [stdout] 33: 0x556313e32e23 - test::run_test::{{closure}}::hef3ab237ad9dfdfa [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/test/src/lib.rs:600:41 [INFO] [stdout] 34: 0x556313e32e23 - std::sys_common::backtrace::__rust_begin_short_backtrace::hd6c3f5e9450d872a [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/sys_common/backtrace.rs:154:18 [INFO] [stdout] 35: 0x556313e37f1b - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h033a4dc4b24e2ae4 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 36: 0x556313e37f1b - as core::ops::function::FnOnce<()>>::call_once::hf6ace37e8c04836b [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 37: 0x556313e37f1b - std::panicking::try::do_call::h873acc9efc68dde9 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/panicking.rs:526:40 [INFO] [stdout] 38: 0x556313e37f1b - std::panicking::try::hf1c7b0cddd2a156c [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/panicking.rs:490:19 [INFO] [stdout] 39: 0x556313e37f1b - std::panic::catch_unwind::hd0800cc038b1a0e3 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x556313e37f1b - std::thread::Builder::spawn_unchecked_::{{closure}}::hbd3f2581a283969b [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 41: 0x556313e37f1b - core::ops::function::FnOnce::call_once{{vtable.shim}}::h05a4474bc37631e7 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x556313e9ee95 - as core::ops::function::FnOnce>::call_once::ha81bceedc5dd4605 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/alloc/src/boxed.rs:2007:9 [INFO] [stdout] 43: 0x556313e9ee95 - as core::ops::function::FnOnce>::call_once::ha86fb738f82c9cc8 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/alloc/src/boxed.rs:2007:9 [INFO] [stdout] 44: 0x556313e9ee95 - std::sys::unix::thread::Thread::new::thread_start::h2c80c44f64da2074 [INFO] [stdout] at /rustc/23949593103d03a82c7ebc2e84434ce6c6edc561/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7f091b202b43 - [INFO] [stdout] 46: 0x7f091b293bb4 - __clone [INFO] [stdout] 47: 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] running `Command { std: "docker" "inspect" "8a86ab141fb2e73344fe86dccdefea603a10e133ad727b2b64f347346f2068fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8a86ab141fb2e73344fe86dccdefea603a10e133ad727b2b64f347346f2068fc", kill_on_drop: false }` [INFO] [stdout] 8a86ab141fb2e73344fe86dccdefea603a10e133ad727b2b64f347346f2068fc