[INFO] cloning repository https://github.com/mitch292/rustlings-solutions [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mitch292/rustlings-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitch292%2Frustlings-solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitch292%2Frustlings-solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 83bbd9e82e98b4ec1ab81a1d55bb8688e920a905 [INFO] testing mitch292/rustlings-solutions against try#fc4ba03ef77ca5018fb78a097d3b924d30f15bfc+target=i686-unknown-linux-musl for musl_upgrade_1_2_take3 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmitch292%2Frustlings-solutions" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mitch292/rustlings-solutions on toolchain fc4ba03ef77ca5018fb78a097d3b924d30f15bfc [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mitch292/rustlings-solutions [INFO] finished tweaking git repo https://github.com/mitch292/rustlings-solutions [INFO] tweaked toml for git repo https://github.com/mitch292/rustlings-solutions written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/mitch292/rustlings-solutions already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ecb5b79e19e7220f984b4d182528014ea80fee3891bb2a02889bf40e25e14f7a [INFO] running `Command { std: "docker" "start" "-a" "ecb5b79e19e7220f984b4d182528014ea80fee3891bb2a02889bf40e25e14f7a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ecb5b79e19e7220f984b4d182528014ea80fee3891bb2a02889bf40e25e14f7a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ecb5b79e19e7220f984b4d182528014ea80fee3891bb2a02889bf40e25e14f7a", kill_on_drop: false }` [INFO] [stdout] ecb5b79e19e7220f984b4d182528014ea80fee3891bb2a02889bf40e25e14f7a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "build" "--frozen" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] adbf40fa24952bac2561951d95b913f40be0f826fda2ac6d9cab03ea8e48c445 [INFO] running `Command { std: "docker" "start" "-a" "adbf40fa24952bac2561951d95b913f40be0f826fda2ac6d9cab03ea8e48c445", 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 semver-parser v0.7.0 [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [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 rand_jitter v0.1.4 [INFO] [stderr] Compiling unicode-width v0.1.5 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling smallvec v0.6.9 [INFO] [stderr] Compiling ucd-util v0.1.3 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Compiling lock_api v0.2.0 [INFO] [stderr] Compiling regex-syntax v0.6.6 [INFO] [stderr] Compiling aho-corasick v0.7.3 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling utf8-ranges v1.0.2 [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling serde v1.0.92 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling inotify-sys v0.1.3 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling once_cell v1.16.0 [INFO] [stderr] Compiling lazycell v1.2.1 [INFO] [stderr] Compiling same-file v1.0.4 [INFO] [stderr] Compiling console v0.15.1 [INFO] [stderr] Compiling mio-extras v2.0.5 [INFO] [stderr] Compiling walkdir v2.2.7 [INFO] [stderr] Compiling number_prefix v0.2.8 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling clicolors-control v1.0.0 [INFO] [stderr] Compiling termios v0.3.1 [INFO] [stderr] Compiling filetime v0.2.5 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Compiling console v0.7.7 [INFO] [stderr] Compiling indicatif v0.10.3 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v2.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 29.00s [INFO] running `Command { std: "docker" "inspect" "adbf40fa24952bac2561951d95b913f40be0f826fda2ac6d9cab03ea8e48c445", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "adbf40fa24952bac2561951d95b913f40be0f826fda2ac6d9cab03ea8e48c445", kill_on_drop: false }` [INFO] [stdout] adbf40fa24952bac2561951d95b913f40be0f826fda2ac6d9cab03ea8e48c445 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--no-run" "--message-format=json" "--target" "i686-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] b76dadb02eec8641e4952b1748d92b93f380716a10b9341183154cd505a39625 [INFO] running `Command { std: "docker" "start" "-a" "b76dadb02eec8641e4952b1748d92b93f380716a10b9341183154cd505a39625", 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] [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 float-cmp v0.4.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling normalize-line-endings v0.2.2 [INFO] [stderr] Compiling predicates-tree v1.0.0 [INFO] [stderr] Compiling glob v0.3.0 [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 v2.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 6.52s [INFO] running `Command { std: "docker" "inspect" "b76dadb02eec8641e4952b1748d92b93f380716a10b9341183154cd505a39625", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b76dadb02eec8641e4952b1748d92b93f380716a10b9341183154cd505a39625", kill_on_drop: false }` [INFO] [stdout] b76dadb02eec8641e4952b1748d92b93f380716a10b9341183154cd505a39625 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:bb5b0feb4f87116a4ea905b7ff5bf5b85913db05e9f0fbc1abdd3168928d9075" "/opt/rustwide/cargo-home/bin/cargo" "+fc4ba03ef77ca5018fb78a097d3b924d30f15bfc" "test" "--frozen" "--target" "i686-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 4eac32dd3dca14d0a0286608f3cb6ee01519bed68e4ab96b7a11ec0e53cd2bb0 [INFO] running `Command { std: "docker" "start" "-a" "4eac32dd3dca14d0a0286608f3cb6ee01519bed68e4ab96b7a11ec0e53cd2bb0", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/i686-unknown-linux-musl/debug/deps/rustlings-da3a2e2f7382c1c1) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test exercise::test::test_pending_state ... ok [INFO] [stdout] test exercise::test::test_finished_exercise ... ok [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:131:36 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x81ca981 - std::backtrace_rs::backtrace::libunwind::trace::h5f291319ef5c6762 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x81ca981 - std::backtrace_rs::backtrace::trace_unsynchronized::h96ca96ef06a343d3 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x81ca981 - std::sys_common::backtrace::_print_fmt::h9ecddad7ef420251 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/sys_common/backtrace.rs:65:5 [INFO] [stdout] 3: 0x81ca981 - ::fmt::h7345cc970529ac34 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x820705c - core::fmt::write::hf580cd49f879cb74 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/core/src/fmt/mod.rs:1208:17 [INFO] [stdout] 5: 0x81c79fb - std::io::Write::write_fmt::hceb49ab886ea57c9 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/io/mod.rs:1682:15 [INFO] [stdout] 6: 0x81ca786 - std::sys_common::backtrace::_print::h8b6713f1e30cd3b1 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 7: 0x81ca786 - std::sys_common::backtrace::print::h228371403e861751 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 8: 0x81cc365 - std::panicking::default_hook::{{closure}}::h6da55f6f475e59d6 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/panicking.rs:267:22 [INFO] [stdout] 9: 0x81cc065 - std::panicking::default_hook::h8f14cf6f2f2f52d8 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/panicking.rs:283:9 [INFO] [stdout] 10: 0x81a9a1c - core::ops::function::Fn::call::h9b26c25f04212ebd [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/core/src/ops/function.rs:161:5 [INFO] [stdout] 11: 0x8081c39 - as core::ops::function::Fn>::call::h0b6006386399b354 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/alloc/src/boxed.rs:2032:9 [INFO] [stdout] 12: 0x8081c39 - test::test_main::{{closure}}::hf462dccab4831d1f [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/test/src/lib.rs:135:21 [INFO] [stdout] 13: 0x81ccaa4 - as core::ops::function::Fn>::call::h9163b46de7e7a7ba [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/alloc/src/boxed.rs:2032:9 [INFO] [stdout] 14: 0x81ccaa4 - std::panicking::rust_panic_with_hook::h2f79ffe424d88114 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/panicking.rs:692:13 [INFO] [stdout] 15: 0x81cc85c - std::panicking::begin_panic_handler::{{closure}}::h59ef6a1246219cbe [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/panicking.rs:579:13 [INFO] [stdout] 16: 0x81cadfa - std::sys_common::backtrace::__rust_end_short_backtrace::h3d3587da31656282 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/sys_common/backtrace.rs:137:18 [INFO] [stdout] 17: 0x81cc533 - rust_begin_unwind [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/panicking.rs:575:5 [INFO] [stdout] 18: 0x804c730 - core::panicking::panic_fmt::h40e949315ccf1c11 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/core/src/panicking.rs:64:14 [INFO] [stdout] 19: 0x804cafd - core::result::unwrap_failed::hfad931015b9eef7f [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/core/src/result.rs:1791:5 [INFO] [stdout] 20: 0x804fd2d - core::result::Result::unwrap::hfa433010e4570be5 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/core/src/result.rs:1113:23 [INFO] [stdout] 21: 0x804e1e7 - rustlings::exercise::test::test_clean::h5b5a9deecd7ebb16 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:131:9 [INFO] [stdout] 22: 0x804e127 - rustlings::exercise::test::test_clean::{{closure}}::h0ee81b1efa9b7bc8 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:130:21 [INFO] [stdout] 23: 0x805000d - core::ops::function::FnOnce::call_once::h72cc5b475c41bca8 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/core/src/ops/function.rs:507:5 [INFO] [stdout] 24: 0x808667e - core::ops::function::FnOnce::call_once::hecc3c5fab6cb88cd [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/core/src/ops/function.rs:507:5 [INFO] [stdout] 25: 0x808667e - test::__rust_begin_short_backtrace::h18e977d49f646cd0 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/test/src/lib.rs:657:18 [INFO] [stdout] 26: 0x8059620 - test::run_test::{{closure}}::ha39325b57d1cb768 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/test/src/lib.rs:648:30 [INFO] [stdout] 27: 0x8059620 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h5040e45b1e845123 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/core/src/ops/function.rs:507:5 [INFO] [stdout] 28: 0x80857f7 - as core::ops::function::FnOnce>::call_once::h26c70f40318b0360 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/alloc/src/boxed.rs:2000:9 [INFO] [stdout] 29: 0x80857f7 - as core::ops::function::FnOnce<()>>::call_once::hfa679c02d5269ea1 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 30: 0x80857f7 - std::panicking::try::do_call::h5bc1d3d4ab3d7acd [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/panicking.rs:483:40 [INFO] [stdout] 31: 0x80857f7 - std::panicking::try::h0d0734d848512873 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/panicking.rs:447:19 [INFO] [stdout] 32: 0x80857f7 - std::panic::catch_unwind::h1b17ff745af6bff3 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/panic.rs:137:14 [INFO] [stdout] 33: 0x80857f7 - test::run_test_in_process::h7545f915ef03cbbe [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/test/src/lib.rs:680:27 [INFO] [stdout] 34: 0x80857f7 - test::run_test::run_test_inner::{{closure}}::he5f64ab41218f776 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/test/src/lib.rs:574:39 [INFO] [stdout] 35: 0x8053e8a - test::run_test::run_test_inner::{{closure}}::h74ad460a34a68702 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/test/src/lib.rs:601:37 [INFO] [stdout] 36: 0x8053e8a - std::sys_common::backtrace::__rust_begin_short_backtrace::h3e8f4d074e786dcf [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/sys_common/backtrace.rs:121:18 [INFO] [stdout] 37: 0x805949b - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9aa166e39b65b836 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/thread/mod.rs:550:17 [INFO] [stdout] 38: 0x805949b - as core::ops::function::FnOnce<()>>::call_once::h49c1c6ee61f36b13 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 39: 0x805949b - std::panicking::try::do_call::h6c0758e2b02f2859 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/panicking.rs:483:40 [INFO] [stdout] 40: 0x805949b - std::panicking::try::h3684f436e633cc77 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/panicking.rs:447:19 [INFO] [stdout] 41: 0x805949b - std::panic::catch_unwind::hc37306cbaab1bf43 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/panic.rs:137:14 [INFO] [stdout] 42: 0x805949b - std::thread::Builder::spawn_unchecked_::{{closure}}::h6a4963ec3f0e3be6 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/thread/mod.rs:549:30 [INFO] [stdout] 43: 0x805949b - core::ops::function::FnOnce::call_once{{vtable.shim}}::h0914fb32932929dc [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/core/src/ops/function.rs:507:5 [INFO] [stdout] 44: 0x81d072d - as core::ops::function::FnOnce>::call_once::hb6157d95beb62c18 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/alloc/src/boxed.rs:2000:9 [INFO] [stdout] 45: 0x81d072d - as core::ops::function::FnOnce>::call_once::h710bd3383b288449 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/alloc/src/boxed.rs:2000:9 [INFO] [stdout] 46: 0x81d072d - std::sys::unix::thread::Thread::new::thread_start::ha4036db4cbfe1239 [INFO] [stdout] at /rustc/fc4ba03ef77ca5018fb78a097d3b924d30f15bfc/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] exercise::test::test_clean [INFO] [stdout] [INFO] [stdout] test result: FAILED. 2 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" "4eac32dd3dca14d0a0286608f3cb6ee01519bed68e4ab96b7a11ec0e53cd2bb0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4eac32dd3dca14d0a0286608f3cb6ee01519bed68e4ab96b7a11ec0e53cd2bb0", kill_on_drop: false }` [INFO] [stdout] 4eac32dd3dca14d0a0286608f3cb6ee01519bed68e4ab96b7a11ec0e53cd2bb0