[INFO] cloning repository https://github.com/os2edu/rustlings-LOCKD2016 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/os2edu/rustlings-LOCKD2016" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fos2edu%2Frustlings-LOCKD2016", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fos2edu%2Frustlings-LOCKD2016'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 72589ad16f6b0befae2c1c86a1b776ae7190329a [INFO] testing os2edu/rustlings-LOCKD2016 against master#ff2c56344c764af598ad33027e9c7a48881808ef for pr-118825 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fos2edu%2Frustlings-LOCKD2016" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/os2edu/rustlings-LOCKD2016 on toolchain ff2c56344c764af598ad33027e9c7a48881808ef [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff2c56344c764af598ad33027e9c7a48881808ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/os2edu/rustlings-LOCKD2016 [INFO] finished tweaking git repo https://github.com/os2edu/rustlings-LOCKD2016 [INFO] tweaked toml for git repo https://github.com/os2edu/rustlings-LOCKD2016 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/os2edu/rustlings-LOCKD2016 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" "+ff2c56344c764af598ad33027e9c7a48881808ef" "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 [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 os2edu/rustlings-LOCKD2016 against try#5e4273472e1b2f223618a9b3def795f6224f241d for pr-118825 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fos2edu%2Frustlings-LOCKD2016" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/os2edu/rustlings-LOCKD2016 on toolchain 5e4273472e1b2f223618a9b3def795f6224f241d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5e4273472e1b2f223618a9b3def795f6224f241d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/os2edu/rustlings-LOCKD2016 [INFO] finished tweaking git repo https://github.com/os2edu/rustlings-LOCKD2016 [INFO] tweaked toml for git repo https://github.com/os2edu/rustlings-LOCKD2016 written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/os2edu/rustlings-LOCKD2016 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" "+5e4273472e1b2f223618a9b3def795f6224f241d" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+5e4273472e1b2f223618a9b3def795f6224f241d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3450155b03676565ad3efdfb5c4fa09243ab7f70beefa59dd78891b0f5a013b7 [INFO] running `Command { std: "docker" "start" "-a" "3450155b03676565ad3efdfb5c4fa09243ab7f70beefa59dd78891b0f5a013b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3450155b03676565ad3efdfb5c4fa09243ab7f70beefa59dd78891b0f5a013b7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3450155b03676565ad3efdfb5c4fa09243ab7f70beefa59dd78891b0f5a013b7", kill_on_drop: false }` [INFO] [stdout] 3450155b03676565ad3efdfb5c4fa09243ab7f70beefa59dd78891b0f5a013b7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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" "+5e4273472e1b2f223618a9b3def795f6224f241d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b95e59b9e885f7dc95ad1b24bb11a1be78359243530c2002dd7c035056a1da9d [INFO] running `Command { std: "docker" "start" "-a" "b95e59b9e885f7dc95ad1b24bb11a1be78359243530c2002dd7c035056a1da9d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.137 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling lock_api v0.4.9 [INFO] [stderr] Compiling parking_lot_core v0.9.4 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling smallvec v1.10.0 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling tokio v1.21.2 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling parking_lot v0.12.1 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling signal-hook-registry v1.4.0 [INFO] [stderr] Compiling mio v0.8.5 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling socket2 v0.4.7 [INFO] [stderr] Compiling num_cpus v1.13.1 [INFO] [stderr] Compiling itoa v1.0.2 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling pin-project-lite v0.2.9 [INFO] [stderr] Compiling bytes v1.2.1 [INFO] [stderr] Compiling regex v1.5.5 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling home v0.5.3 [INFO] [stderr] Compiling console v0.15.0 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling tokio-macros v1.8.0 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.5.9 [INFO] [stderr] Compiling rustlings v5.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 35.02s [INFO] running `Command { std: "docker" "inspect" "b95e59b9e885f7dc95ad1b24bb11a1be78359243530c2002dd7c035056a1da9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b95e59b9e885f7dc95ad1b24bb11a1be78359243530c2002dd7c035056a1da9d", kill_on_drop: false }` [INFO] [stdout] b95e59b9e885f7dc95ad1b24bb11a1be78359243530c2002dd7c035056a1da9d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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" "+5e4273472e1b2f223618a9b3def795f6224f241d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 17108a2ae021df8e9c332ad457af7bc4a71eba80e84a07d79c33d76ee8698d17 [INFO] running `Command { std: "docker" "start" "-a" "17108a2ae021df8e9c332ad457af7bc4a71eba80e84a07d79c33d76ee8698d17", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling predicates-tree v1.0.3 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling predicates v1.0.8 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v5.2.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 5.46s [INFO] running `Command { std: "docker" "inspect" "17108a2ae021df8e9c332ad457af7bc4a71eba80e84a07d79c33d76ee8698d17", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "17108a2ae021df8e9c332ad457af7bc4a71eba80e84a07d79c33d76ee8698d17", kill_on_drop: false }` [INFO] [stdout] 17108a2ae021df8e9c332ad457af7bc4a71eba80e84a07d79c33d76ee8698d17 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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" "+5e4273472e1b2f223618a9b3def795f6224f241d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 7ad969c6a19d56494b32849d419ecfe0498e1939155c16252786a369825b51e0 [INFO] running `Command { std: "docker" "start" "-a" "7ad969c6a19d56494b32849d419ecfe0498e1939155c16252786a369825b51e0", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-46e7e3d18fbcdc6f) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test exercise::test::test_finished_exercise ... ok [INFO] [stdout] test exercise::test::test_pending_state ... ok [INFO] [stdout] test exercise::test::test_clean ... FAILED [INFO] [stdout] test exercise::test::test_exercise_with_output ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_clean stdout ---- [INFO] [stdout] thread 'exercise::test::test_clean' panicked at src/exercise.rs:269:36: [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: 0x561ba00bfdac - std::backtrace_rs::backtrace::libunwind::trace::he911f9c907837597 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 [INFO] [stdout] 1: 0x561ba00bfdac - std::backtrace_rs::backtrace::trace_unsynchronized::hb30926ceb4a5ace8 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x561ba00bfdac - std::sys_common::backtrace::_print_fmt::h20b4c3cb4b8e01de [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x561ba00bfdac - ::fmt::hcb347474accdbb50 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x561ba00e9b70 - core::fmt::rt::Argument::fmt::h0959df1f48ddd7a2 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/fmt/rt.rs:142:9 [INFO] [stdout] 5: 0x561ba00e9b70 - core::fmt::write::hb02961b4380cf4e7 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/fmt/mod.rs:1120:17 [INFO] [stdout] 6: 0x561ba00bd85f - std::io::Write::write_fmt::h529bf90db5fd4c64 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/io/mod.rs:1810:15 [INFO] [stdout] 7: 0x561ba00bfb94 - std::sys_common::backtrace::_print::h9f31dc4772e05e46 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x561ba00bfb94 - std::sys_common::backtrace::print::he1974c4a8ca14219 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x561ba00c18c7 - std::panicking::default_hook::{{closure}}::h9663c9f0f27e933c [INFO] [stdout] 10: 0x561ba00c15b3 - std::panicking::default_hook::h232155e937189ed1 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:289:9 [INFO] [stdout] 11: 0x561b9ff3fd57 - as core::ops::function::Fn>::call::h30a8b128ee88d398 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 12: 0x561b9ff3fd57 - test::test_main::{{closure}}::hcafb25d50378ac2e [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/test/src/lib.rs:138:21 [INFO] [stdout] 13: 0x561ba00c1ed8 - as core::ops::function::Fn>::call::hb0500737c93e9fc8 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 14: 0x561ba00c1ed8 - std::panicking::rust_panic_with_hook::hc8764d1694e821a7 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:783:13 [INFO] [stdout] 15: 0x561ba00c1c2e - std::panicking::begin_panic_handler::{{closure}}::hf3ed629468815f4d [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:657:13 [INFO] [stdout] 16: 0x561ba00c0276 - std::sys_common::backtrace::__rust_end_short_backtrace::h4e08af68b8432e1a [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x561ba00c1992 - rust_begin_unwind [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:645:5 [INFO] [stdout] 18: 0x561b9fef72c5 - core::panicking::panic_fmt::hd274135c92cc1bf8 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x561b9fef78b3 - core::result::unwrap_failed::hfff0d1b88e8facf3 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/result.rs:1649:5 [INFO] [stdout] 20: 0x561b9fefb19b - core::result::Result::unwrap::h9f6881e2027c8883 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/result.rs:1073:23 [INFO] [stdout] 21: 0x561b9fefd821 - rustlings::exercise::test::test_clean::h129a630dbdf60001 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:9 [INFO] [stdout] 22: 0x561b9fefd7a7 - rustlings::exercise::test::test_clean::{{closure}}::hced9bf08df46ff58 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:268:20 [INFO] [stdout] 23: 0x561b9fef9486 - core::ops::function::FnOnce::call_once::h425644981de16749 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x561b9ff4544f - core::ops::function::FnOnce::call_once::he101e5838844b848 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x561b9ff4544f - test::__rust_begin_short_backtrace::hed21417c1aa71a94 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/test/src/lib.rs:627:18 [INFO] [stdout] 26: 0x561b9ff443c5 - test::run_test_in_process::{{closure}}::h46df11f5a11dd433 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/test/src/lib.rs:650:60 [INFO] [stdout] 27: 0x561b9ff443c5 - as core::ops::function::FnOnce<()>>::call_once::ha2e64525433f53a7 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x561b9ff443c5 - std::panicking::try::do_call::hb1d734fe97663a7f [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:552:40 [INFO] [stdout] 29: 0x561b9ff443c5 - std::panicking::try::h9d066276df30f924 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:516:19 [INFO] [stdout] 30: 0x561b9ff443c5 - std::panic::catch_unwind::heaada02e29cd999e [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x561b9ff443c5 - test::run_test_in_process::hcb05ee14075e628d [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/test/src/lib.rs:650:27 [INFO] [stdout] 32: 0x561b9ff443c5 - test::run_test::{{closure}}::hf9413b0f448cd684 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/test/src/lib.rs:573:43 [INFO] [stdout] 33: 0x561b9ff0c606 - test::run_test::{{closure}}::h1bb15d2e8774a33f [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/test/src/lib.rs:601:41 [INFO] [stdout] 34: 0x561b9ff0c606 - std::sys_common::backtrace::__rust_begin_short_backtrace::h530f23a50d8639c1 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x561b9ff117e7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h37b8455d57d25f70 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 36: 0x561b9ff117e7 - as core::ops::function::FnOnce<()>>::call_once::h3867791011bf949d [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x561b9ff117e7 - std::panicking::try::do_call::h1cac0f1203e6219b [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:552:40 [INFO] [stdout] 38: 0x561b9ff117e7 - std::panicking::try::h82de9f14e7a5f0ca [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:516:19 [INFO] [stdout] 39: 0x561b9ff117e7 - std::panic::catch_unwind::hcea1081d521eaa80 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x561b9ff117e7 - std::thread::Builder::spawn_unchecked_::{{closure}}::ha7aa8f4eaae79bb5 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 41: 0x561b9ff117e7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h5c1a4829e968af7c [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x561ba00c6ad5 - as core::ops::function::FnOnce>::call_once::h6cea6bfb156e0019 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 43: 0x561ba00c6ad5 - as core::ops::function::FnOnce>::call_once::h3c499441c8da3187 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 44: 0x561ba00c6ad5 - std::sys::unix::thread::Thread::new::thread_start::h45692980afba103a [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7f8e69baaac3 - [INFO] [stdout] 46: 0x7f8e69c3bbf4 - __clone [INFO] [stdout] 47: 0x0 - [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ---- [INFO] [stdout] thread 'exercise::test::test_exercise_with_output' panicked at src/exercise.rs:342:38: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: ExerciseOutput { stdout: "", stderr: "\u{1b}[0m\u{1b}[1m\u{1b}[38;5;9merror\u{1b}[0m\u{1b}[0m\u{1b}[1m: couldn't create a temp dir: Read-only file system (os error 30) at path \"/opt/rustwide/workdir/./rmetaFO2zXn\"\u{1b}[0m\n\n\u{1b}[0m\u{1b}[1m\u{1b}[38;5;9merror\u{1b}[0m\u{1b}[0m\u{1b}[1m: aborting due to 1 previous error\u{1b}[0m\n\n" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x561ba00bfdac - std::backtrace_rs::backtrace::libunwind::trace::he911f9c907837597 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 [INFO] [stdout] 1: 0x561ba00bfdac - std::backtrace_rs::backtrace::trace_unsynchronized::hb30926ceb4a5ace8 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x561ba00bfdac - std::sys_common::backtrace::_print_fmt::h20b4c3cb4b8e01de [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x561ba00bfdac - ::fmt::hcb347474accdbb50 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x561ba00e9b70 - core::fmt::rt::Argument::fmt::h0959df1f48ddd7a2 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/fmt/rt.rs:142:9 [INFO] [stdout] 5: 0x561ba00e9b70 - core::fmt::write::hb02961b4380cf4e7 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/fmt/mod.rs:1120:17 [INFO] [stdout] 6: 0x561ba00bd85f - std::io::Write::write_fmt::h529bf90db5fd4c64 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/io/mod.rs:1810:15 [INFO] [stdout] 7: 0x561ba00bfb94 - std::sys_common::backtrace::_print::h9f31dc4772e05e46 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x561ba00bfb94 - std::sys_common::backtrace::print::he1974c4a8ca14219 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x561ba00c18c7 - std::panicking::default_hook::{{closure}}::h9663c9f0f27e933c [INFO] [stdout] 10: 0x561ba00c15b3 - std::panicking::default_hook::h232155e937189ed1 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:289:9 [INFO] [stdout] 11: 0x561b9ff3fd57 - as core::ops::function::Fn>::call::h30a8b128ee88d398 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 12: 0x561b9ff3fd57 - test::test_main::{{closure}}::hcafb25d50378ac2e [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/test/src/lib.rs:138:21 [INFO] [stdout] 13: 0x561ba00c1ed8 - as core::ops::function::Fn>::call::hb0500737c93e9fc8 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 14: 0x561ba00c1ed8 - std::panicking::rust_panic_with_hook::hc8764d1694e821a7 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:783:13 [INFO] [stdout] 15: 0x561ba00c1c2e - std::panicking::begin_panic_handler::{{closure}}::hf3ed629468815f4d [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:657:13 [INFO] [stdout] 16: 0x561ba00c0276 - std::sys_common::backtrace::__rust_end_short_backtrace::h4e08af68b8432e1a [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x561ba00c1992 - rust_begin_unwind [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:645:5 [INFO] [stdout] 18: 0x561b9fef72c5 - core::panicking::panic_fmt::hd274135c92cc1bf8 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x561b9fef78b3 - core::result::unwrap_failed::hfff0d1b88e8facf3 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/result.rs:1649:5 [INFO] [stdout] 20: 0x561b9fefb03b - core::result::Result::unwrap::h51f862a2ded4c921 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/result.rs:1073:23 [INFO] [stdout] 21: 0x561b9fefe51c - rustlings::exercise::test::test_exercise_with_output::hd60379951f032f0c [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:342:19 [INFO] [stdout] 22: 0x561b9fefe3b7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hd07efd615e3a0653 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:335:35 [INFO] [stdout] 23: 0x561b9fef94c6 - core::ops::function::FnOnce::call_once::h50cb256d032e8cc3 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x561b9ff4544f - core::ops::function::FnOnce::call_once::he101e5838844b848 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x561b9ff4544f - test::__rust_begin_short_backtrace::hed21417c1aa71a94 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/test/src/lib.rs:627:18 [INFO] [stdout] 26: 0x561b9ff443c5 - test::run_test_in_process::{{closure}}::h46df11f5a11dd433 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/test/src/lib.rs:650:60 [INFO] [stdout] 27: 0x561b9ff443c5 - as core::ops::function::FnOnce<()>>::call_once::ha2e64525433f53a7 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x561b9ff443c5 - std::panicking::try::do_call::hb1d734fe97663a7f [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:552:40 [INFO] [stdout] 29: 0x561b9ff443c5 - std::panicking::try::h9d066276df30f924 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:516:19 [INFO] [stdout] 30: 0x561b9ff443c5 - std::panic::catch_unwind::heaada02e29cd999e [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x561b9ff443c5 - test::run_test_in_process::hcb05ee14075e628d [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/test/src/lib.rs:650:27 [INFO] [stdout] 32: 0x561b9ff443c5 - test::run_test::{{closure}}::hf9413b0f448cd684 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/test/src/lib.rs:573:43 [INFO] [stdout] 33: 0x561b9ff0c606 - test::run_test::{{closure}}::h1bb15d2e8774a33f [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/test/src/lib.rs:601:41 [INFO] [stdout] 34: 0x561b9ff0c606 - std::sys_common::backtrace::__rust_begin_short_backtrace::h530f23a50d8639c1 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x561b9ff117e7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h37b8455d57d25f70 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 36: 0x561b9ff117e7 - as core::ops::function::FnOnce<()>>::call_once::h3867791011bf949d [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x561b9ff117e7 - std::panicking::try::do_call::h1cac0f1203e6219b [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:552:40 [INFO] [stdout] 38: 0x561b9ff117e7 - std::panicking::try::h82de9f14e7a5f0ca [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panicking.rs:516:19 [INFO] [stdout] 39: 0x561b9ff117e7 - std::panic::catch_unwind::hcea1081d521eaa80 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x561b9ff117e7 - std::thread::Builder::spawn_unchecked_::{{closure}}::ha7aa8f4eaae79bb5 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 41: 0x561b9ff117e7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h5c1a4829e968af7c [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x561ba00c6ad5 - as core::ops::function::FnOnce>::call_once::h6cea6bfb156e0019 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 43: 0x561ba00c6ad5 - as core::ops::function::FnOnce>::call_once::h3c499441c8da3187 [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 44: 0x561ba00c6ad5 - std::sys::unix::thread::Thread::new::thread_start::h45692980afba103a [INFO] [stdout] at /rustc/5e4273472e1b2f223618a9b3def795f6224f241d/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7f8e69baaac3 - [INFO] [stdout] 46: 0x7f8e69c3bbf4 - __clone [INFO] [stdout] 47: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] exercise::test::test_clean [INFO] [stdout] exercise::test::test_exercise_with_output [INFO] [stdout] [INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "7ad969c6a19d56494b32849d419ecfe0498e1939155c16252786a369825b51e0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ad969c6a19d56494b32849d419ecfe0498e1939155c16252786a369825b51e0", kill_on_drop: false }` [INFO] [stdout] 7ad969c6a19d56494b32849d419ecfe0498e1939155c16252786a369825b51e0