[INFO] cloning repository https://github.com/yunlongYoung/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yunlongYoung/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FyunlongYoung%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FyunlongYoung%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3bea290421a45b1117b1469fa48254ad58605cfc [INFO] testing yunlongYoung/rustlings against master#61223975d46f794466efa832bc7562b9707ecc46+rustflags=-Copt-level=3 for pr-121282 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FyunlongYoung%2Frustlings" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/yunlongYoung/rustlings on toolchain 61223975d46f794466efa832bc7562b9707ecc46 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/yunlongYoung/rustlings [INFO] finished tweaking git repo https://github.com/yunlongYoung/rustlings [INFO] tweaked toml for git repo https://github.com/yunlongYoung/rustlings written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/yunlongYoung/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" "+61223975d46f794466efa832bc7562b9707ecc46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] testing yunlongYoung/rustlings against try#d073071d77ce0f93b4fd8cc567a1e2b9e1b22126+rustflags=-Copt-level=3 for pr-121282 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FyunlongYoung%2Frustlings" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/yunlongYoung/rustlings on toolchain d073071d77ce0f93b4fd8cc567a1e2b9e1b22126 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/yunlongYoung/rustlings [INFO] finished tweaking git repo https://github.com/yunlongYoung/rustlings [INFO] tweaked toml for git repo https://github.com/yunlongYoung/rustlings written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/yunlongYoung/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" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "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 [ERROR] error running command: no output for 300 seconds [INFO] testing yunlongYoung/rustlings against try#d073071d77ce0f93b4fd8cc567a1e2b9e1b22126+rustflags=-Copt-level=3 for pr-121282 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FyunlongYoung%2Frustlings" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/yunlongYoung/rustlings on toolchain d073071d77ce0f93b4fd8cc567a1e2b9e1b22126 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/yunlongYoung/rustlings [INFO] finished tweaking git repo https://github.com/yunlongYoung/rustlings [INFO] tweaked toml for git repo https://github.com/yunlongYoung/rustlings written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/yunlongYoung/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" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded normalize-line-endings v0.2.2 [INFO] [stderr] Downloaded winapi-util v0.1.2 [INFO] [stderr] Downloaded predicates v1.0.2 [INFO] [stderr] Downloaded notify v4.0.14 [INFO] [stderr] Downloaded clicolors-control v0.2.0 [INFO] [stderr] Downloaded serde_json v1.0.41 [INFO] [stderr] Downloaded predicates-tree v1.0.0 [INFO] [stderr] Downloaded console v0.9.1 [INFO] [stderr] Downloaded termios v0.3.1 [INFO] [stderr] Downloaded inotify v0.6.1 [INFO] [stderr] Downloaded same-file v1.0.5 [INFO] [stderr] Downloaded inotify-sys v0.1.3 [INFO] [stderr] Downloaded ucd-util v0.1.5 [INFO] [stderr] Downloaded serde v1.0.102 [INFO] [stderr] Downloaded syn v1.0.8 [INFO] [stderr] Downloaded console v0.6.2 [INFO] [stderr] Downloaded filetime v0.2.8 [INFO] [stderr] Downloaded smallvec v0.6.13 [INFO] [stderr] Downloaded walkdir v2.2.9 [INFO] [stderr] Downloaded predicates-core v1.0.0 [INFO] [stderr] Downloaded serde_derive v1.0.102 [INFO] [stderr] Downloaded indicatif v0.9.0 [INFO] [stderr] Downloaded mio-extras v2.0.5 [INFO] [stderr] Downloaded num-traits v0.2.9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0a701ad10df8ed18d70e4b29fa9f5d6a6d77d1cc42231748f7e42406fb4e7fab [INFO] running `Command { std: "docker" "start" "-a" "0a701ad10df8ed18d70e4b29fa9f5d6a6d77d1cc42231748f7e42406fb4e7fab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0a701ad10df8ed18d70e4b29fa9f5d6a6d77d1cc42231748f7e42406fb4e7fab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0a701ad10df8ed18d70e4b29fa9f5d6a6d77d1cc42231748f7e42406fb4e7fab", kill_on_drop: false }` [INFO] [stdout] 0a701ad10df8ed18d70e4b29fa9f5d6a6d77d1cc42231748f7e42406fb4e7fab [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 52cb4dbddaa26a7e3ad8a0b99f8386cf877db017dd291ab5a18202082f002c16 [INFO] running `Command { std: "docker" "start" "-a" "52cb4dbddaa26a7e3ad8a0b99f8386cf877db017dd291ab5a18202082f002c16", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling syn v1.0.8 [INFO] [stderr] Compiling unicode-width v0.1.6 [INFO] [stderr] Compiling regex-syntax v0.6.12 [INFO] [stderr] Compiling lazy_static v0.2.11 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Compiling ucd-util v0.1.5 [INFO] [stderr] Compiling serde v1.0.102 [INFO] [stderr] Compiling smallvec v0.6.13 [INFO] [stderr] Compiling aho-corasick v0.7.6 [INFO] [stderr] Compiling termios v0.3.1 [INFO] [stderr] Compiling aho-corasick v0.6.10 [INFO] [stderr] Compiling atty v0.2.13 [INFO] [stderr] Compiling clicolors-control v1.0.1 [INFO] [stderr] Compiling inotify-sys v0.1.3 [INFO] [stderr] Compiling utf8-ranges v1.0.4 [INFO] [stderr] Compiling same-file v1.0.5 [INFO] [stderr] Compiling regex-syntax v0.5.6 [INFO] [stderr] Compiling inotify v0.6.1 [INFO] [stderr] Compiling walkdir v2.2.9 [INFO] [stderr] Compiling mio-extras v2.0.5 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling parking_lot_core v0.6.2 [INFO] [stderr] Compiling clicolors-control v0.2.0 [INFO] [stderr] Compiling filetime v0.2.8 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling parking_lot v0.9.0 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling notify v4.0.14 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling regex v1.3.1 [INFO] [stderr] Compiling console v0.9.1 [INFO] [stderr] Compiling console v0.6.2 [INFO] [stderr] Compiling indicatif v0.9.0 [INFO] [stderr] Compiling serde_derive v1.0.102 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v2.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 05s [INFO] running `Command { std: "docker" "inspect" "52cb4dbddaa26a7e3ad8a0b99f8386cf877db017dd291ab5a18202082f002c16", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "52cb4dbddaa26a7e3ad8a0b99f8386cf877db017dd291ab5a18202082f002c16", kill_on_drop: false }` [INFO] [stdout] 52cb4dbddaa26a7e3ad8a0b99f8386cf877db017dd291ab5a18202082f002c16 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1ee74948432f1dfc429755dde403c9fbf2a440b837ad9cc8cde9282c482eee67 [INFO] running `Command { std: "docker" "start" "-a" "1ee74948432f1dfc429755dde403c9fbf2a440b837ad9cc8cde9282c482eee67", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v1.0.2 [INFO] [stderr] Compiling num-traits v0.2.9 [INFO] [stderr] Compiling itoa v0.4.4 [INFO] [stderr] Compiling predicates-core v1.0.0 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling normalize-line-endings v0.2.2 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling predicates-tree v1.0.0 [INFO] [stderr] Compiling serde_json v1.0.41 [INFO] [stderr] Compiling float-cmp v0.5.3 [INFO] [stderr] Compiling predicates v1.0.2 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v2.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 11.24s [INFO] running `Command { std: "docker" "inspect" "1ee74948432f1dfc429755dde403c9fbf2a440b837ad9cc8cde9282c482eee67", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1ee74948432f1dfc429755dde403c9fbf2a440b837ad9cc8cde9282c482eee67", kill_on_drop: false }` [INFO] [stdout] 1ee74948432f1dfc429755dde403c9fbf2a440b837ad9cc8cde9282c482eee67 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] d8b3ec3c4a6097ebeda62f8474d2369fd461b191a1551686ec0d324239b757b3 [INFO] running `Command { std: "docker" "start" "-a" "d8b3ec3c4a6097ebeda62f8474d2369fd461b191a1551686ec0d324239b757b3", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-69660bdca73e4fbe) [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 src/exercise.rs:131:36: [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: 0x55d5e5857666 - std::backtrace_rs::backtrace::libunwind::trace::hbf3981e6c8a62f19 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 [INFO] [stdout] 1: 0x55d5e5857666 - std::backtrace_rs::backtrace::trace_unsynchronized::h5d13053d67c404cc [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55d5e5857666 - std::sys_common::backtrace::_print_fmt::hd24dc5b701eaf8ad [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x55d5e5857666 - ::fmt::h1d0155c7c5a7d116 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x55d5e587f1bc - core::fmt::rt::Argument::fmt::h462c7a4781d69908 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/fmt/rt.rs:142:9 [INFO] [stdout] 5: 0x55d5e587f1bc - core::fmt::write::h3cadc3d0c35667c3 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/fmt/mod.rs:1120:17 [INFO] [stdout] 6: 0x55d5e5854e7f - std::io::Write::write_fmt::h7b46babfe8aff3fc [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/io/mod.rs:1846:15 [INFO] [stdout] 7: 0x55d5e5857414 - std::sys_common::backtrace::_print::h21e0ad4a03aa55df [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x55d5e5857414 - std::sys_common::backtrace::print::hb7cfd89cda9bdca7 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x55d5e585910b - std::panicking::default_hook::{{closure}}::hceb0cad555a61bc8 [INFO] [stdout] 10: 0x55d5e5858ddd - std::panicking::default_hook::h00eb745c4c12778b [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:289:9 [INFO] [stdout] 11: 0x55d5e57ba637 - as core::ops::function::Fn>::call::h6a7083dbc9bd7b5f [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 12: 0x55d5e57ba637 - test::test_main::{{closure}}::h4db87ac2515c25e3 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:137:21 [INFO] [stdout] 13: 0x55d5e5859740 - as core::ops::function::Fn>::call::hf3b7bc2e2257730b [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/alloc/src/boxed.rs:2030:9 [INFO] [stdout] 14: 0x55d5e5859740 - std::panicking::rust_panic_with_hook::hccddb3269d601551 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:786:13 [INFO] [stdout] 15: 0x55d5e5859482 - std::panicking::begin_panic_handler::{{closure}}::h1759cdf989495c64 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:660:13 [INFO] [stdout] 16: 0x55d5e5857b46 - std::sys_common::backtrace::__rust_end_short_backtrace::h209794238b4d13a4 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x55d5e58591b4 - rust_begin_unwind [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:648:5 [INFO] [stdout] 18: 0x55d5e5782705 - core::panicking::panic_fmt::ha17ebef8fbaa0a3e [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x55d5e5782bf3 - core::result::unwrap_failed::h4921228b49be0fef [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/result.rs:1653:5 [INFO] [stdout] 20: 0x55d5e5783e95 - core::result::Result::unwrap::hc51566b1df88f76d [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/result.rs:1077:23 [INFO] [stdout] 21: 0x55d5e5783e95 - rustlings::exercise::test::test_clean::he1923805b40de065 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:131:9 [INFO] [stdout] 22: 0x55d5e57857a9 - rustlings::exercise::test::test_clean::{{closure}}::h273d2de4345283f6 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:130:20 [INFO] [stdout] 23: 0x55d5e57857a9 - core::ops::function::FnOnce::call_once::h62b629bf50000595 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x55d5e57bfe3f - core::ops::function::FnOnce::call_once::hb293dddd1a0c8d0c [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x55d5e57bfe3f - test::__rust_begin_short_backtrace::hcc33cf50a0d42744 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:620:18 [INFO] [stdout] 26: 0x55d5e57be9b0 - test::run_test_in_process::{{closure}}::h1a67b8b225cf5559 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:643:60 [INFO] [stdout] 27: 0x55d5e57be9b0 - as core::ops::function::FnOnce<()>>::call_once::h6c8366f6b1a529d0 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x55d5e57be9b0 - std::panicking::try::do_call::h3ac771f4eea356d5 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:555:40 [INFO] [stdout] 29: 0x55d5e57be9b0 - std::panicking::try::h2b1799e4f57e5bcf [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:519:19 [INFO] [stdout] 30: 0x55d5e57be9b0 - std::panic::catch_unwind::h0a3cc3fea72ac271 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x55d5e57be9b0 - test::run_test_in_process::h47356101e0c4cc43 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:643:27 [INFO] [stdout] 32: 0x55d5e57be9b0 - test::run_test::{{closure}}::hfc86d13e98ee1936 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:566:43 [INFO] [stdout] 33: 0x55d5e5786cf3 - test::run_test::{{closure}}::h077c30ad86447616 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/test/src/lib.rs:594:41 [INFO] [stdout] 34: 0x55d5e5786cf3 - std::sys_common::backtrace::__rust_begin_short_backtrace::h7a0647371687c548 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x55d5e578b98f - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h0ade0df8a561803e [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/thread/mod.rs:528:17 [INFO] [stdout] 36: 0x55d5e578b98f - as core::ops::function::FnOnce<()>>::call_once::h94e6781319385c1d [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x55d5e578b98f - std::panicking::try::do_call::h2d8e7d2812ed142e [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:555:40 [INFO] [stdout] 38: 0x55d5e578b98f - std::panicking::try::hfec8a6adb9bfcaea [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panicking.rs:519:19 [INFO] [stdout] 39: 0x55d5e578b98f - std::panic::catch_unwind::hf488fb91a41eb5b5 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x55d5e578b98f - std::thread::Builder::spawn_unchecked_::{{closure}}::h306975a3cadd5153 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/thread/mod.rs:527:30 [INFO] [stdout] 41: 0x55d5e578b98f - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4f4ed26f27d558ae [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x55d5e585dab5 - as core::ops::function::FnOnce>::call_once::h17d6fdbdde1f730c [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 43: 0x55d5e585dab5 - as core::ops::function::FnOnce>::call_once::h298d88b0d0cf4d06 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/alloc/src/boxed.rs:2016:9 [INFO] [stdout] 44: 0x55d5e585dab5 - std::sys::pal::unix::thread::Thread::new::thread_start::h1ecd97591626fa72 [INFO] [stdout] at /rustc/d073071d77ce0f93b4fd8cc567a1e2b9e1b22126/library/std/src/sys/pal/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7f3bab741ac3 - [INFO] [stdout] 46: 0x7f3bab7d2bf4 - __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. 2 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "d8b3ec3c4a6097ebeda62f8474d2369fd461b191a1551686ec0d324239b757b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d8b3ec3c4a6097ebeda62f8474d2369fd461b191a1551686ec0d324239b757b3", kill_on_drop: false }` [INFO] [stdout] d8b3ec3c4a6097ebeda62f8474d2369fd461b191a1551686ec0d324239b757b3