[INFO] cloning repository https://github.com/xzh0512/rustling [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xzh0512/rustling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxzh0512%2Frustling", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxzh0512%2Frustling'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7cd9f8e7c24bab60ac8c08ef3ccb3beba8e847ed [INFO] testing xzh0512/rustling against 1.83.0 for beta-1.84.0-4 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxzh0512%2Frustling" "/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/xzh0512/rustling on toolchain 1.83.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/xzh0512/rustling [INFO] finished tweaking git repo https://github.com/xzh0512/rustling [INFO] tweaked toml for git repo https://github.com/xzh0512/rustling written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/xzh0512/rustling 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" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9f52fd0d6a2e4f87c4875516ad5824527773f073539a7ad20c6053ff1ba0b788 [INFO] running `Command { std: "docker" "start" "-a" "9f52fd0d6a2e4f87c4875516ad5824527773f073539a7ad20c6053ff1ba0b788", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9f52fd0d6a2e4f87c4875516ad5824527773f073539a7ad20c6053ff1ba0b788", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9f52fd0d6a2e4f87c4875516ad5824527773f073539a7ad20c6053ff1ba0b788", kill_on_drop: false }` [INFO] [stdout] 9f52fd0d6a2e4f87c4875516ad5824527773f073539a7ad20c6053ff1ba0b788 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3cc015186227c1876b8f8ea6e6b87ef18ad41ede5bc1d2459a3745423792e466 [INFO] running `Command { std: "docker" "start" "-a" "3cc015186227c1876b8f8ea6e6b87ef18ad41ede5bc1d2459a3745423792e466", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.53 [INFO] [stderr] Compiling unicode-ident v1.0.8 [INFO] [stderr] Compiling quote v1.0.26 [INFO] [stderr] Compiling libc v0.2.150 [INFO] [stderr] Compiling serde_derive v1.0.158 [INFO] [stderr] Compiling serde v1.0.158 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling crossbeam-utils v0.8.16 [INFO] [stderr] Compiling utf8parse v0.2.1 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling anstyle v1.0.3 [INFO] [stderr] Compiling equivalent v1.0.1 [INFO] [stderr] Compiling anstyle-query v1.0.0 [INFO] [stderr] Compiling colorchoice v1.0.0 [INFO] [stderr] Compiling hashbrown v0.14.0 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling portable-atomic v1.4.3 [INFO] [stderr] Compiling heck v0.4.1 [INFO] [stderr] Compiling clap_lex v0.5.1 [INFO] [stderr] Compiling winnow v0.5.15 [INFO] [stderr] Compiling anstyle-parse v0.2.1 [INFO] [stderr] Compiling serde_json v1.0.94 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling walkdir v2.3.3 [INFO] [stderr] Compiling strsim v0.10.0 [INFO] [stderr] Compiling anstream v0.5.0 [INFO] [stderr] Compiling memchr v2.6.3 [INFO] [stderr] Compiling unicode-width v0.1.10 [INFO] [stderr] Compiling ryu v1.0.13 [INFO] [stderr] Compiling itoa v1.0.6 [INFO] [stderr] Compiling clap_builder v4.4.2 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling crossbeam-channel v0.5.8 [INFO] [stderr] Compiling regex-syntax v0.6.29 [INFO] [stderr] Compiling home v0.5.4 [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stderr] Compiling indexmap v2.0.0 [INFO] [stderr] Compiling aho-corasick v0.7.20 [INFO] [stderr] Compiling syn v2.0.8 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling filetime v0.2.22 [INFO] [stderr] Compiling mio v0.8.9 [INFO] [stderr] Compiling console v0.15.5 [INFO] [stderr] Compiling inotify v0.9.6 [INFO] [stderr] Compiling notify v6.1.1 [INFO] [stderr] Compiling indicatif v0.17.6 [INFO] [stderr] Compiling notify-debouncer-mini v0.4.1 [INFO] [stderr] Compiling regex v1.7.2 [INFO] [stderr] Compiling clap_derive v4.4.2 [INFO] [stderr] Compiling clap v4.4.3 [INFO] [stderr] Compiling serde_spanned v0.6.3 [INFO] [stderr] Compiling toml_datetime v0.6.3 [INFO] [stderr] Compiling toml_edit v0.19.15 [INFO] [stderr] Compiling toml v0.7.8 [INFO] [stderr] Compiling rustlings v5.6.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.91s [INFO] running `Command { std: "docker" "inspect" "3cc015186227c1876b8f8ea6e6b87ef18ad41ede5bc1d2459a3745423792e466", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3cc015186227c1876b8f8ea6e6b87ef18ad41ede5bc1d2459a3745423792e466", kill_on_drop: false }` [INFO] [stdout] 3cc015186227c1876b8f8ea6e6b87ef18ad41ede5bc1d2459a3745423792e466 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 84aa1617ae499158be04ab201ead4e88d7d940c2a545d592ddaf53b57e52e305 [INFO] running `Command { std: "docker" "start" "-a" "84aa1617ae499158be04ab201ead4e88d7d940c2a545d592ddaf53b57e52e305", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling predicates-core v1.0.6 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Compiling either v1.9.0 [INFO] [stderr] Compiling regex-automata v0.3.8 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling termtree v0.4.1 [INFO] [stderr] Compiling difflib v0.4.0 [INFO] [stderr] Compiling wait-timeout v0.2.0 [INFO] [stderr] Compiling predicates-tree v1.0.9 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling bstr v1.6.2 [INFO] [stderr] Compiling float-cmp v0.9.0 [INFO] [stderr] Compiling predicates v3.0.3 [INFO] [stderr] Compiling assert_cmd v2.0.12 [INFO] [stderr] Compiling rustlings v5.6.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 9.53s [INFO] running `Command { std: "docker" "inspect" "84aa1617ae499158be04ab201ead4e88d7d940c2a545d592ddaf53b57e52e305", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "84aa1617ae499158be04ab201ead4e88d7d940c2a545d592ddaf53b57e52e305", kill_on_drop: false }` [INFO] [stdout] 84aa1617ae499158be04ab201ead4e88d7d940c2a545d592ddaf53b57e52e305 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 1f4148d5efa68afd2f2d17b4470fc6ca41fd730e1ae09a596daf767493f4d949 [INFO] running `Command { std: "docker" "start" "-a" "1f4148d5efa68afd2f2d17b4470fc6ca41fd730e1ae09a596daf767493f4d949", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.19s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-f319e4ba748abe28) [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:284:35: [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: 0x5af1df59548a - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x5af1df59548a - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5af1df59548a - std::sys::backtrace::_print_fmt::hc4546b8364a537c6 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5af1df59548a - ::fmt::h5b6bd5631a6d1f6b [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5af1df5bab23 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x5af1df5bab23 - core::fmt::write::h7550c97b06c86515 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21 [INFO] [stdout] 6: 0x5af1df592623 - std::io::Write::write_fmt::h509ff860e5956e5e [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15 [INFO] [stdout] 7: 0x5af1df5952d2 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x5af1df5968ea - std::panicking::default_hook::{{closure}}::he19d4c7230e07961 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22 [INFO] [stdout] 9: 0x5af1df5966f4 - std::panicking::default_hook::hf614597d3c67bbdb [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:292:9 [INFO] [stdout] 10: 0x5af1df41e3d9 - as core::ops::function::Fn>::call::h39b51ce4599c23d1 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9 [INFO] [stdout] 11: 0x5af1df41e3d9 - test::test_main::{{closure}}::he977ae839a582784 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:133:21 [INFO] [stdout] 12: 0x5af1df596f88 - as core::ops::function::Fn>::call::h9455091b6b06f9fb [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9 [INFO] [stdout] 13: 0x5af1df596f88 - std::panicking::rust_panic_with_hook::h8942133a8b252070 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:809:13 [INFO] [stdout] 14: 0x5af1df596d4a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13 [INFO] [stdout] 15: 0x5af1df595969 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x5af1df5969dc - rust_begin_unwind [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5 [INFO] [stdout] 17: 0x5af1df3d4180 - core::panicking::panic_fmt::h0c3082644d1bf418 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14 [INFO] [stdout] 18: 0x5af1df3d4606 - core::result::unwrap_failed::hd20b4aa073bda1e2 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/result.rs:1700:5 [INFO] [stdout] 19: 0x5af1df3df192 - core::result::Result::unwrap::hf294af1d32bae7b9 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/result.rs:1104:23 [INFO] [stdout] 20: 0x5af1df3df192 - rustlings::exercise::test::test_clean::hb5dc6badf1b19b72 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:284:9 [INFO] [stdout] 21: 0x5af1df3df117 - rustlings::exercise::test::test_clean::{{closure}}::h24511694a1ff7ac5 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:283:20 [INFO] [stdout] 22: 0x5af1df3dbff6 - core::ops::function::FnOnce::call_once::hd906d176c7be5327 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x5af1df422d9b - core::ops::function::FnOnce::call_once::h109cf8051a59b34e [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5af1df422d9b - test::__rust_begin_short_backtrace::hf4fff89d377446ba [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:621:18 [INFO] [stdout] 25: 0x5af1df4225d7 - test::run_test_in_process::{{closure}}::h0e39181dd7ee5a43 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:60 [INFO] [stdout] 26: 0x5af1df4225d7 - as core::ops::function::FnOnce<()>>::call_once::hc5a66a30f0bdfd1f [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x5af1df4225d7 - std::panicking::try::do_call::h873b7cf639554a5e [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40 [INFO] [stdout] 28: 0x5af1df4225d7 - std::panicking::try::hdb19862fad9c8bd1 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19 [INFO] [stdout] 29: 0x5af1df4225d7 - std::panic::catch_unwind::h281fe732d236d260 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14 [INFO] [stdout] 30: 0x5af1df4225d7 - test::run_test_in_process::h949b6df8457ed338 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:27 [INFO] [stdout] 31: 0x5af1df4225d7 - test::run_test::{{closure}}::h52c556a6d4740e10 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:565:43 [INFO] [stdout] 32: 0x5af1df3e78b4 - test::run_test::{{closure}}::h4237f6381c45ccb9 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:595:41 [INFO] [stdout] 33: 0x5af1df3e78b4 - std::sys::backtrace::__rust_begin_short_backtrace::h505c97a579eca628 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x5af1df3eaf7e - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9e86b2e2bc107ea3 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:538:17 [INFO] [stdout] 35: 0x5af1df3eaf7e - as core::ops::function::FnOnce<()>>::call_once::h8b06ddb275ff4a25 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x5af1df3eaf7e - std::panicking::try::do_call::hb26ecd7cd9a9355d [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40 [INFO] [stdout] 37: 0x5af1df3eaf7e - std::panicking::try::h8ddeca9d705f9069 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19 [INFO] [stdout] 38: 0x5af1df3eaf7e - std::panic::catch_unwind::h49e1c33078844c46 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14 [INFO] [stdout] 39: 0x5af1df3eaf7e - std::thread::Builder::spawn_unchecked_::{{closure}}::h6073db6ff56ad35d [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:537:30 [INFO] [stdout] 40: 0x5af1df3eaf7e - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2c5a5f3779c774f1 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x5af1df59aeab - as core::ops::function::FnOnce>::call_once::hf75717d9f28faebf [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9 [INFO] [stdout] 42: 0x5af1df59aeab - as core::ops::function::FnOnce>::call_once::h7bd883a5f3c5f3c1 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9 [INFO] [stdout] 43: 0x5af1df59aeab - std::sys::pal::unix::thread::Thread::new::thread_start::hcc78f3943333fa94 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x7850dccb4ac3 - [INFO] [stdout] 45: 0x7850dcd45a04 - clone [INFO] [stdout] 46: 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:375:38: [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/./rmetaZPh6ab\"\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: 0x5af1df59548a - std::backtrace_rs::backtrace::libunwind::trace::h5a5b8284f2d0c266 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x5af1df59548a - std::backtrace_rs::backtrace::trace_unsynchronized::h76d4f1c9b0b875e3 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5af1df59548a - std::sys::backtrace::_print_fmt::hc4546b8364a537c6 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5af1df59548a - ::fmt::h5b6bd5631a6d1f6b [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5af1df5bab23 - core::fmt::rt::Argument::fmt::h270f6602a2b96f62 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x5af1df5bab23 - core::fmt::write::h7550c97b06c86515 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/fmt/mod.rs:1186:21 [INFO] [stdout] 6: 0x5af1df592623 - std::io::Write::write_fmt::h509ff860e5956e5e [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/io/mod.rs:1839:15 [INFO] [stdout] 7: 0x5af1df5952d2 - std::sys::backtrace::BacktraceLock::print::h2395ccd2c84ba3aa [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x5af1df5968ea - std::panicking::default_hook::{{closure}}::he19d4c7230e07961 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:268:22 [INFO] [stdout] 9: 0x5af1df5966f4 - std::panicking::default_hook::hf614597d3c67bbdb [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:292:9 [INFO] [stdout] 10: 0x5af1df41e3d9 - as core::ops::function::Fn>::call::h39b51ce4599c23d1 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9 [INFO] [stdout] 11: 0x5af1df41e3d9 - test::test_main::{{closure}}::he977ae839a582784 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:133:21 [INFO] [stdout] 12: 0x5af1df596f88 - as core::ops::function::Fn>::call::h9455091b6b06f9fb [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2468:9 [INFO] [stdout] 13: 0x5af1df596f88 - std::panicking::rust_panic_with_hook::h8942133a8b252070 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:809:13 [INFO] [stdout] 14: 0x5af1df596d4a - std::panicking::begin_panic_handler::{{closure}}::hb5f5963570096b29 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:674:13 [INFO] [stdout] 15: 0x5af1df595969 - std::sys::backtrace::__rust_end_short_backtrace::h6208cedc1922feda [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x5af1df5969dc - rust_begin_unwind [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:665:5 [INFO] [stdout] 17: 0x5af1df3d4180 - core::panicking::panic_fmt::h0c3082644d1bf418 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panicking.rs:74:14 [INFO] [stdout] 18: 0x5af1df3d4606 - core::result::unwrap_failed::hd20b4aa073bda1e2 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/result.rs:1700:5 [INFO] [stdout] 19: 0x5af1df3dffca - core::result::Result::unwrap::h77b2527bcde46054 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/result.rs:1104:23 [INFO] [stdout] 20: 0x5af1df3dffca - rustlings::exercise::test::test_exercise_with_output::h121e89ef636d4532 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:375:19 [INFO] [stdout] 21: 0x5af1df3dfdd7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h7fa7b277d53e9caf [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:368:35 [INFO] [stdout] 22: 0x5af1df3dbfb6 - core::ops::function::FnOnce::call_once::hb65e6fff1bab8445 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x5af1df422d9b - core::ops::function::FnOnce::call_once::h109cf8051a59b34e [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5af1df422d9b - test::__rust_begin_short_backtrace::hf4fff89d377446ba [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:621:18 [INFO] [stdout] 25: 0x5af1df4225d7 - test::run_test_in_process::{{closure}}::h0e39181dd7ee5a43 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:60 [INFO] [stdout] 26: 0x5af1df4225d7 - as core::ops::function::FnOnce<()>>::call_once::hc5a66a30f0bdfd1f [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x5af1df4225d7 - std::panicking::try::do_call::h873b7cf639554a5e [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40 [INFO] [stdout] 28: 0x5af1df4225d7 - std::panicking::try::hdb19862fad9c8bd1 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19 [INFO] [stdout] 29: 0x5af1df4225d7 - std::panic::catch_unwind::h281fe732d236d260 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14 [INFO] [stdout] 30: 0x5af1df4225d7 - test::run_test_in_process::h949b6df8457ed338 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:644:27 [INFO] [stdout] 31: 0x5af1df4225d7 - test::run_test::{{closure}}::h52c556a6d4740e10 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:565:43 [INFO] [stdout] 32: 0x5af1df3e78b4 - test::run_test::{{closure}}::h4237f6381c45ccb9 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/test/src/lib.rs:595:41 [INFO] [stdout] 33: 0x5af1df3e78b4 - std::sys::backtrace::__rust_begin_short_backtrace::h505c97a579eca628 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x5af1df3eaf7e - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9e86b2e2bc107ea3 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:538:17 [INFO] [stdout] 35: 0x5af1df3eaf7e - as core::ops::function::FnOnce<()>>::call_once::h8b06ddb275ff4a25 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x5af1df3eaf7e - std::panicking::try::do_call::hb26ecd7cd9a9355d [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:557:40 [INFO] [stdout] 37: 0x5af1df3eaf7e - std::panicking::try::h8ddeca9d705f9069 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panicking.rs:520:19 [INFO] [stdout] 38: 0x5af1df3eaf7e - std::panic::catch_unwind::h49e1c33078844c46 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/panic.rs:358:14 [INFO] [stdout] 39: 0x5af1df3eaf7e - std::thread::Builder::spawn_unchecked_::{{closure}}::h6073db6ff56ad35d [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/thread/mod.rs:537:30 [INFO] [stdout] 40: 0x5af1df3eaf7e - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2c5a5f3779c774f1 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x5af1df59aeab - as core::ops::function::FnOnce>::call_once::hf75717d9f28faebf [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9 [INFO] [stdout] 42: 0x5af1df59aeab - as core::ops::function::FnOnce>::call_once::h7bd883a5f3c5f3c1 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/alloc/src/boxed.rs:2454:9 [INFO] [stdout] 43: 0x5af1df59aeab - std::sys::pal::unix::thread::Thread::new::thread_start::hcc78f3943333fa94 [INFO] [stdout] at /rustc/90b35a6239c3d8bdabc530a6a0816f7ff89a0aaf/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x7850dccb4ac3 - [INFO] [stdout] 45: 0x7850dcd45a04 - clone [INFO] [stdout] 46: 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 0.16s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "1f4148d5efa68afd2f2d17b4470fc6ca41fd730e1ae09a596daf767493f4d949", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1f4148d5efa68afd2f2d17b4470fc6ca41fd730e1ae09a596daf767493f4d949", kill_on_drop: false }` [INFO] [stdout] 1f4148d5efa68afd2f2d17b4470fc6ca41fd730e1ae09a596daf767493f4d949