[INFO] cloning repository https://github.com/LearningOS/rust-rustlings-zxxww [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LearningOS/rust-rustlings-zxxww" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-zxxww", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-zxxww'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 265b718f2c125304b45536385049e45fcc72ae15 [INFO] testing LearningOS/rust-rustlings-zxxww against 1.75.0 for beta-1.76-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-zxxww" "/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/LearningOS/rust-rustlings-zxxww on toolchain 1.75.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/LearningOS/rust-rustlings-zxxww [INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-zxxww [INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-zxxww written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/LearningOS/rust-rustlings-zxxww 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" "+1.75.0" "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 LearningOS/rust-rustlings-zxxww against beta-2023-12-22 for beta-1.76-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-zxxww" "/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/LearningOS/rust-rustlings-zxxww on toolchain beta-2023-12-22 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-12-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/LearningOS/rust-rustlings-zxxww [INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-zxxww [INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-zxxww written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/LearningOS/rust-rustlings-zxxww 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" "+beta-2023-12-22" "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-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" "+beta-2023-12-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6c9f6dac8570a985513112e330043a727624f02aa671bd0595c0ea9a12a354f1 [INFO] running `Command { std: "docker" "start" "-a" "6c9f6dac8570a985513112e330043a727624f02aa671bd0595c0ea9a12a354f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6c9f6dac8570a985513112e330043a727624f02aa671bd0595c0ea9a12a354f1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c9f6dac8570a985513112e330043a727624f02aa671bd0595c0ea9a12a354f1", kill_on_drop: false }` [INFO] [stdout] 6c9f6dac8570a985513112e330043a727624f02aa671bd0595c0ea9a12a354f1 [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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2023-12-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 10ff06ba7cd172b62e56a0a4137e9cf5c8108b2e9cb80b1e61f491218ce7cb89 [INFO] running `Command { std: "docker" "start" "-a" "10ff06ba7cd172b62e56a0a4137e9cf5c8108b2e9cb80b1e61f491218ce7cb89", 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 memchr v2.4.1 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling lock_api v0.4.9 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling parking_lot_core v0.9.4 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling smallvec v1.10.0 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling tokio v1.21.2 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling unicode-width v0.1.8 [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 serde_json v1.0.81 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling parking_lot v0.12.1 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling socket2 v0.4.7 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling signal-hook-registry v1.4.0 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling num_cpus v1.13.1 [INFO] [stderr] Compiling mio v0.8.5 [INFO] [stderr] Compiling bytes v1.2.1 [INFO] [stderr] Compiling pin-project-lite v0.2.9 [INFO] [stderr] Compiling regex v1.5.5 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling itoa v1.0.2 [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 28.80s [INFO] running `Command { std: "docker" "inspect" "10ff06ba7cd172b62e56a0a4137e9cf5c8108b2e9cb80b1e61f491218ce7cb89", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "10ff06ba7cd172b62e56a0a4137e9cf5c8108b2e9cb80b1e61f491218ce7cb89", kill_on_drop: false }` [INFO] [stdout] 10ff06ba7cd172b62e56a0a4137e9cf5c8108b2e9cb80b1e61f491218ce7cb89 [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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2023-12-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2b6aff5aef0e217f1e1e2f2a1c322202e4fcc8405724f96a0d0a8f3ec214bc89 [INFO] running `Command { std: "docker" "start" "-a" "2b6aff5aef0e217f1e1e2f2a1c322202e4fcc8405724f96a0d0a8f3ec214bc89", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling escargot v0.4.0 [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 3.49s [INFO] running `Command { std: "docker" "inspect" "2b6aff5aef0e217f1e1e2f2a1c322202e4fcc8405724f96a0d0a8f3ec214bc89", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2b6aff5aef0e217f1e1e2f2a1c322202e4fcc8405724f96a0d0a8f3ec214bc89", kill_on_drop: false }` [INFO] [stdout] 2b6aff5aef0e217f1e1e2f2a1c322202e4fcc8405724f96a0d0a8f3ec214bc89 [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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2023-12-22" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] b12d5e753265e17b16ffaf76ee2967dc5f6101db53cd0ee84726a81925d603f9 [INFO] running `Command { std: "docker" "start" "-a" "b12d5e753265e17b16ffaf76ee2967dc5f6101db53cd0ee84726a81925d603f9", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-54004e958c01bba2) [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: 0x5561bc19eb26 - std::backtrace_rs::backtrace::libunwind::trace::h261606ad26a499c1 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 [INFO] [stdout] 1: 0x5561bc19eb26 - std::backtrace_rs::backtrace::trace_unsynchronized::hd183f0625477fb28 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5561bc19eb26 - std::sys_common::backtrace::_print_fmt::hd7f8fef21b4eda67 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x5561bc19eb26 - ::fmt::h623d9b51f2f453f1 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x5561bc1c7b30 - core::fmt::rt::Argument::fmt::h9f417ac76a86f368 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/rt.rs:142:9 [INFO] [stdout] 5: 0x5561bc1c7b30 - core::fmt::write::hc9b6faf4ac2aeff7 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/mod.rs:1120:17 [INFO] [stdout] 6: 0x5561bc19c56f - std::io::Write::write_fmt::he04625a3a989fec3 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/io/mod.rs:1810:15 [INFO] [stdout] 7: 0x5561bc19e904 - std::sys_common::backtrace::_print::hd5d66399c7df88a2 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x5561bc19e904 - std::sys_common::backtrace::print::he81ed2da642d37e5 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x5561bc1a0677 - std::panicking::default_hook::{{closure}}::h85773f4fa117163d [INFO] [stdout] 10: 0x5561bc1a035d - std::panicking::default_hook::h6a1694a91d09b278 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:289:9 [INFO] [stdout] 11: 0x5561bc020a47 - as core::ops::function::Fn>::call::h616ac37fa3cd6c8f [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 12: 0x5561bc020a47 - test::test_main::{{closure}}::h00d84697cefdcbb6 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:138:21 [INFO] [stdout] 13: 0x5561bc1a0c96 - as core::ops::function::Fn>::call::hcb3fe3b9bb537ba8 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 14: 0x5561bc1a0c96 - std::panicking::rust_panic_with_hook::h0a7ad96e90f7145b [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:783:13 [INFO] [stdout] 15: 0x5561bc1a09e2 - std::panicking::begin_panic_handler::{{closure}}::h7919090525c6485e [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:657:13 [INFO] [stdout] 16: 0x5561bc19f026 - std::sys_common::backtrace::__rust_end_short_backtrace::hf3289479464f7dfe [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x5561bc1a0740 - rust_begin_unwind [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:645:5 [INFO] [stdout] 18: 0x5561bbfd92a5 - core::panicking::panic_fmt::hcc9f77c5c132af55 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x5561bbfd9883 - core::result::unwrap_failed::hbe14f498be1452f9 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/result.rs:1649:5 [INFO] [stdout] 20: 0x5561bbfe35fb - core::result::Result::unwrap::h215248a669c32881 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/result.rs:1073:23 [INFO] [stdout] 21: 0x5561bbfe0331 - rustlings::exercise::test::test_clean::ha76646c91ba847b8 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:9 [INFO] [stdout] 22: 0x5561bbfe02b7 - rustlings::exercise::test::test_clean::{{closure}}::hab3a9d9d17e2248a [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:268:20 [INFO] [stdout] 23: 0x5561bbfe2436 - core::ops::function::FnOnce::call_once::he73e4c8fc42bcceb [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5561bc02631f - core::ops::function::FnOnce::call_once::hd64d26f405258157 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x5561bc02631f - test::__rust_begin_short_backtrace::he21b0b7a6d731bf9 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:627:18 [INFO] [stdout] 26: 0x5561bc0250a1 - test::run_test_in_process::{{closure}}::hf5c73986d7bdfde2 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:60 [INFO] [stdout] 27: 0x5561bc0250a1 - as core::ops::function::FnOnce<()>>::call_once::h330011ad032aadc0 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x5561bc0250a1 - std::panicking::try::do_call::he61b0a958b795a41 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40 [INFO] [stdout] 29: 0x5561bc0250a1 - std::panicking::try::h7309da130f906eb7 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19 [INFO] [stdout] 30: 0x5561bc0250a1 - std::panic::catch_unwind::hc5c3a06fdaf0a92a [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x5561bc0250a1 - test::run_test_in_process::h7e7b7c71c3324e0f [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:27 [INFO] [stdout] 32: 0x5561bc0250a1 - test::run_test::{{closure}}::h1f509f28f5cf20b1 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:573:43 [INFO] [stdout] 33: 0x5561bbfec3d6 - test::run_test::{{closure}}::h1754218abf443f6d [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:601:41 [INFO] [stdout] 34: 0x5561bbfec3d6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h2ee174b9d5954948 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x5561bbff1437 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hf60bee9c1a17ef09 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 36: 0x5561bbff1437 - as core::ops::function::FnOnce<()>>::call_once::h33d0dddec5216160 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x5561bbff1437 - std::panicking::try::do_call::h144b3048b546f835 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40 [INFO] [stdout] 38: 0x5561bbff1437 - std::panicking::try::h978244d04646189f [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19 [INFO] [stdout] 39: 0x5561bbff1437 - std::panic::catch_unwind::hdf436369d188fe86 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x5561bbff1437 - std::thread::Builder::spawn_unchecked_::{{closure}}::h87329cbdd33c79ec [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 41: 0x5561bbff1437 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h401abbe67897d450 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x5561bc1a58d5 - as core::ops::function::FnOnce>::call_once::h5d7c8f150ab9c84c [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 43: 0x5561bc1a58d5 - as core::ops::function::FnOnce>::call_once::h570d5b005c242c15 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 44: 0x5561bc1a58d5 - std::sys::unix::thread::Thread::new::thread_start::h36b0a20c0b2361ad [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7f0460b65ac3 - [INFO] [stdout] 46: 0x7f0460bf6bf4 - __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/./rmetasU3iyL\"\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: 0x5561bc19eb26 - std::backtrace_rs::backtrace::libunwind::trace::h261606ad26a499c1 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 [INFO] [stdout] 1: 0x5561bc19eb26 - std::backtrace_rs::backtrace::trace_unsynchronized::hd183f0625477fb28 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5561bc19eb26 - std::sys_common::backtrace::_print_fmt::hd7f8fef21b4eda67 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x5561bc19eb26 - ::fmt::h623d9b51f2f453f1 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x5561bc1c7b30 - core::fmt::rt::Argument::fmt::h9f417ac76a86f368 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/rt.rs:142:9 [INFO] [stdout] 5: 0x5561bc1c7b30 - core::fmt::write::hc9b6faf4ac2aeff7 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/fmt/mod.rs:1120:17 [INFO] [stdout] 6: 0x5561bc19c56f - std::io::Write::write_fmt::he04625a3a989fec3 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/io/mod.rs:1810:15 [INFO] [stdout] 7: 0x5561bc19e904 - std::sys_common::backtrace::_print::hd5d66399c7df88a2 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x5561bc19e904 - std::sys_common::backtrace::print::he81ed2da642d37e5 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x5561bc1a0677 - std::panicking::default_hook::{{closure}}::h85773f4fa117163d [INFO] [stdout] 10: 0x5561bc1a035d - std::panicking::default_hook::h6a1694a91d09b278 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:289:9 [INFO] [stdout] 11: 0x5561bc020a47 - as core::ops::function::Fn>::call::h616ac37fa3cd6c8f [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 12: 0x5561bc020a47 - test::test_main::{{closure}}::h00d84697cefdcbb6 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:138:21 [INFO] [stdout] 13: 0x5561bc1a0c96 - as core::ops::function::Fn>::call::hcb3fe3b9bb537ba8 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 14: 0x5561bc1a0c96 - std::panicking::rust_panic_with_hook::h0a7ad96e90f7145b [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:783:13 [INFO] [stdout] 15: 0x5561bc1a09e2 - std::panicking::begin_panic_handler::{{closure}}::h7919090525c6485e [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:657:13 [INFO] [stdout] 16: 0x5561bc19f026 - std::sys_common::backtrace::__rust_end_short_backtrace::hf3289479464f7dfe [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x5561bc1a0740 - rust_begin_unwind [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:645:5 [INFO] [stdout] 18: 0x5561bbfd92a5 - core::panicking::panic_fmt::hcc9f77c5c132af55 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x5561bbfd9883 - core::result::unwrap_failed::hbe14f498be1452f9 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/result.rs:1649:5 [INFO] [stdout] 20: 0x5561bbfe3561 - core::result::Result::unwrap::h012fb924c068a84f [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/result.rs:1073:23 [INFO] [stdout] 21: 0x5561bbfe101c - rustlings::exercise::test::test_exercise_with_output::hf45f7557fb4af08f [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:342:19 [INFO] [stdout] 22: 0x5561bbfe0eb7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h721c49584d2c5acb [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:335:35 [INFO] [stdout] 23: 0x5561bbfe23d6 - core::ops::function::FnOnce::call_once::h9bb5c0d2e20bf5f1 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5561bc02631f - core::ops::function::FnOnce::call_once::hd64d26f405258157 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x5561bc02631f - test::__rust_begin_short_backtrace::he21b0b7a6d731bf9 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:627:18 [INFO] [stdout] 26: 0x5561bc0250a1 - test::run_test_in_process::{{closure}}::hf5c73986d7bdfde2 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:60 [INFO] [stdout] 27: 0x5561bc0250a1 - as core::ops::function::FnOnce<()>>::call_once::h330011ad032aadc0 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x5561bc0250a1 - std::panicking::try::do_call::he61b0a958b795a41 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40 [INFO] [stdout] 29: 0x5561bc0250a1 - std::panicking::try::h7309da130f906eb7 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19 [INFO] [stdout] 30: 0x5561bc0250a1 - std::panic::catch_unwind::hc5c3a06fdaf0a92a [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x5561bc0250a1 - test::run_test_in_process::h7e7b7c71c3324e0f [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:650:27 [INFO] [stdout] 32: 0x5561bc0250a1 - test::run_test::{{closure}}::h1f509f28f5cf20b1 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:573:43 [INFO] [stdout] 33: 0x5561bbfec3d6 - test::run_test::{{closure}}::h1754218abf443f6d [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/test/src/lib.rs:601:41 [INFO] [stdout] 34: 0x5561bbfec3d6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h2ee174b9d5954948 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x5561bbff1437 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hf60bee9c1a17ef09 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 36: 0x5561bbff1437 - as core::ops::function::FnOnce<()>>::call_once::h33d0dddec5216160 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x5561bbff1437 - std::panicking::try::do_call::h144b3048b546f835 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:552:40 [INFO] [stdout] 38: 0x5561bbff1437 - std::panicking::try::h978244d04646189f [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panicking.rs:516:19 [INFO] [stdout] 39: 0x5561bbff1437 - std::panic::catch_unwind::hdf436369d188fe86 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x5561bbff1437 - std::thread::Builder::spawn_unchecked_::{{closure}}::h87329cbdd33c79ec [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 41: 0x5561bbff1437 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h401abbe67897d450 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x5561bc1a58d5 - as core::ops::function::FnOnce>::call_once::h5d7c8f150ab9c84c [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 43: 0x5561bc1a58d5 - as core::ops::function::FnOnce>::call_once::h570d5b005c242c15 [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 44: 0x5561bc1a58d5 - std::sys::unix::thread::Thread::new::thread_start::h36b0a20c0b2361ad [INFO] [stdout] at /rustc/0e09125c6c3c2fd70d7de961bcf0e51575235fad/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7f0460b65ac3 - [INFO] [stdout] 46: 0x7f0460bf6bf4 - __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 0.08s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "b12d5e753265e17b16ffaf76ee2967dc5f6101db53cd0ee84726a81925d603f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b12d5e753265e17b16ffaf76ee2967dc5f6101db53cd0ee84726a81925d603f9", kill_on_drop: false }` [INFO] [stdout] b12d5e753265e17b16ffaf76ee2967dc5f6101db53cd0ee84726a81925d603f9