[INFO] cloning repository https://github.com/cschindlbeck/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cschindlbeck/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcschindlbeck%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcschindlbeck%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4d04aad8902262d73d05b066ef0b8ffcd4fb634d [INFO] testing cschindlbeck/rustlings/4d04aad8902262d73d05b066ef0b8ffcd4fb634d against 1.82.0 for beta-1.83-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcschindlbeck%2Frustlings" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cschindlbeck/rustlings on toolchain 1.82.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.82.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/cschindlbeck/rustlings [INFO] finished tweaking git repo https://github.com/cschindlbeck/rustlings [INFO] tweaked toml for git repo https://github.com/cschindlbeck/rustlings written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/cschindlbeck/rustlings already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.82.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+1.82.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] cbeac55dc1b3a786b46fb783e001cb4ec7b1cf2e5b7d5320deeee67023bc456d [INFO] running `Command { std: "docker" "start" "-a" "cbeac55dc1b3a786b46fb783e001cb4ec7b1cf2e5b7d5320deeee67023bc456d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cbeac55dc1b3a786b46fb783e001cb4ec7b1cf2e5b7d5320deeee67023bc456d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cbeac55dc1b3a786b46fb783e001cb4ec7b1cf2e5b7d5320deeee67023bc456d", kill_on_drop: false }` [INFO] [stdout] cbeac55dc1b3a786b46fb783e001cb4ec7b1cf2e5b7d5320deeee67023bc456d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+1.82.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5bd0959bb6e326a750b898e14dd98993344e341c676a06337452ad8b980ceb00 [INFO] running `Command { std: "docker" "start" "-a" "5bd0959bb6e326a750b898e14dd98993344e341c676a06337452ad8b980ceb00", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.66 [INFO] [stderr] Compiling unicode-ident v1.0.11 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling serde v1.0.188 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling utf8parse v0.2.1 [INFO] [stderr] Compiling anstyle-query v1.0.0 [INFO] [stderr] Compiling anstyle-parse v0.2.1 [INFO] [stderr] Compiling anstyle v1.0.2 [INFO] [stderr] Compiling memchr v2.6.3 [INFO] [stderr] Compiling portable-atomic v1.4.3 [INFO] [stderr] Compiling equivalent v1.0.1 [INFO] [stderr] Compiling colorchoice v1.0.0 [INFO] [stderr] Compiling log v0.4.20 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling hashbrown v0.14.0 [INFO] [stderr] Compiling aho-corasick v1.0.5 [INFO] [stderr] Compiling anstream v0.5.0 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling indexmap v2.0.0 [INFO] [stderr] Compiling strsim v0.10.0 [INFO] [stderr] Compiling unicode-width v0.1.10 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling winnow v0.5.15 [INFO] [stderr] Compiling heck v0.4.1 [INFO] [stderr] Compiling syn v2.0.31 [INFO] [stderr] Compiling serde_json v1.0.105 [INFO] [stderr] Compiling clap_lex v0.5.1 [INFO] [stderr] Compiling net2 v0.2.39 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling regex-syntax v0.7.5 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling filetime v0.2.22 [INFO] [stderr] Compiling walkdir v2.3.3 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling clap_builder v4.4.2 [INFO] [stderr] Compiling console v0.15.7 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling ryu v1.0.15 [INFO] [stderr] Compiling itoa v1.0.9 [INFO] [stderr] Compiling indicatif v0.17.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stderr] Compiling home v0.5.5 [INFO] [stderr] Compiling regex-automata v0.3.8 [INFO] [stderr] Compiling serde_derive v1.0.188 [INFO] [stderr] Compiling clap_derive v4.4.2 [INFO] [stderr] Compiling regex v1.9.5 [INFO] [stderr] Compiling clap v4.4.2 [INFO] [stderr] Compiling toml_datetime v0.6.3 [INFO] [stderr] Compiling serde_spanned v0.6.3 [INFO] [stderr] Compiling toml_edit v0.19.14 [INFO] [stderr] Compiling toml v0.7.6 [INFO] [stderr] Compiling rustlings v5.6.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.73s [INFO] running `Command { std: "docker" "inspect" "5bd0959bb6e326a750b898e14dd98993344e341c676a06337452ad8b980ceb00", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5bd0959bb6e326a750b898e14dd98993344e341c676a06337452ad8b980ceb00", kill_on_drop: false }` [INFO] [stdout] 5bd0959bb6e326a750b898e14dd98993344e341c676a06337452ad8b980ceb00 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+1.82.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4dd2323ab3511cd1523579a020ba73a874ee21130647345349f8bf16363334fb [INFO] running `Command { std: "docker" "start" "-a" "4dd2323ab3511cd1523579a020ba73a874ee21130647345349f8bf16363334fb", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.16 [INFO] [stderr] Compiling regex-automata v0.3.8 [INFO] [stderr] Compiling either v1.9.0 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Compiling predicates-core v1.0.6 [INFO] [stderr] Compiling termtree v0.4.1 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [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 float-cmp v0.9.0 [INFO] [stderr] Compiling regex v1.9.5 [INFO] [stderr] Compiling bstr v1.6.2 [INFO] [stderr] Compiling predicates v3.0.3 [INFO] [stderr] Compiling assert_cmd v2.0.12 [INFO] [stderr] Compiling rustlings v5.6.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 10.15s [INFO] running `Command { std: "docker" "inspect" "4dd2323ab3511cd1523579a020ba73a874ee21130647345349f8bf16363334fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4dd2323ab3511cd1523579a020ba73a874ee21130647345349f8bf16363334fb", kill_on_drop: false }` [INFO] [stdout] 4dd2323ab3511cd1523579a020ba73a874ee21130647345349f8bf16363334fb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+1.82.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] a14c8ca4d0bda34a776c865365d38fa47bfd89f23c87da74a72cde0f1ee597cf [INFO] running `Command { std: "docker" "start" "-a" "a14c8ca4d0bda34a776c865365d38fa47bfd89f23c87da74a72cde0f1ee597cf", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.14s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-af261263492a34cf) [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:273:35: [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: 0x5f571fb1f80a - std::backtrace_rs::backtrace::libunwind::trace::h99efb0985cae5d78 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x5f571fb1f80a - std::backtrace_rs::backtrace::trace_unsynchronized::he2c1aa63b3f7fad8 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5f571fb1f80a - std::sys::backtrace::_print_fmt::h8a221d40f5e0f88b [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5f571fb1f80a - ::fmt::h304520fd6a30aa07 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5f571fb45c4b - core::fmt::rt::Argument::fmt::h5da9c218ec984eaf [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x5f571fb45c4b - core::fmt::write::hf5713710ce10ff22 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/fmt/mod.rs:1178:21 [INFO] [stdout] 6: 0x5f571fb1ca23 - std::io::Write::write_fmt::h786683024e26df0d [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/io/mod.rs:1823:15 [INFO] [stdout] 7: 0x5f571fb21012 - std::sys::backtrace::BacktraceLock::print::hbcdbec4d97c91528 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x5f571fb21012 - std::panicking::default_hook::{{closure}}::he1ad87607d0c11c5 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:266:22 [INFO] [stdout] 9: 0x5f571fb20b53 - std::panicking::default_hook::h81c8cd2e7c59ee33 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:290:9 [INFO] [stdout] 10: 0x5f571f8ab749 - as core::ops::function::Fn>::call::h6ef31d9fe3b4da7d [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/alloc/src/boxed.rs:2245:9 [INFO] [stdout] 11: 0x5f571f8ab749 - test::test_main::{{closure}}::h97736fed204a235d [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/test/src/lib.rs:132:21 [INFO] [stdout] 12: 0x5f571fb218d2 - as core::ops::function::Fn>::call::h375ef7f99b271d16 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/alloc/src/boxed.rs:2245:9 [INFO] [stdout] 13: 0x5f571fb218d2 - std::panicking::rust_panic_with_hook::had2118629c312a4a [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:805:13 [INFO] [stdout] 14: 0x5f571fb21587 - std::panicking::begin_panic_handler::{{closure}}::h7fa5985d111bafa2 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:671:13 [INFO] [stdout] 15: 0x5f571fb1fce9 - std::sys::backtrace::__rust_end_short_backtrace::h704d151dbefa09c5 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x5f571fb21214 - rust_begin_unwind [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:662:5 [INFO] [stdout] 17: 0x5f571f85f253 - core::panicking::panic_fmt::h3eea515d05f7a35e [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/panicking.rs:74:14 [INFO] [stdout] 18: 0x5f571f85f7a6 - core::result::unwrap_failed::h7c8d8bbbcf45dc13 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/result.rs:1677:5 [INFO] [stdout] 19: 0x5f571f866e22 - core::result::Result::unwrap::h24057772ecd7da76 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/result.rs:1102:23 [INFO] [stdout] 20: 0x5f571f866e22 - rustlings::exercise::test::test_clean::hd9522435c79b2c6f [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:273:9 [INFO] [stdout] 21: 0x5f571f866da7 - rustlings::exercise::test::test_clean::{{closure}}::h3610aa0751bfb6c5 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:272:20 [INFO] [stdout] 22: 0x5f571f8612a6 - core::ops::function::FnOnce::call_once::hff198ef63f077656 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x5f571f8b004b - core::ops::function::FnOnce::call_once::h8cb4701a559728b6 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5f571f8b004b - test::__rust_begin_short_backtrace::hbd02dbd41797127f [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/test/src/lib.rs:620:18 [INFO] [stdout] 25: 0x5f571f8af938 - test::run_test_in_process::{{closure}}::h9b9c40b959cf4b0a [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/test/src/lib.rs:643:60 [INFO] [stdout] 26: 0x5f571f8af938 - as core::ops::function::FnOnce<()>>::call_once::h80ca0f237bf0daa4 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x5f571f8af938 - std::panicking::try::do_call::h74ee75d3e2d7ba36 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:554:40 [INFO] [stdout] 28: 0x5f571f8af938 - std::panicking::try::h2ae7db1dc2a281fc [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:518:19 [INFO] [stdout] 29: 0x5f571f8af938 - std::panic::catch_unwind::h25732d5472f1001d [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panic.rs:345:14 [INFO] [stdout] 30: 0x5f571f8af938 - test::run_test_in_process::h1e17135aacb29db6 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/test/src/lib.rs:643:27 [INFO] [stdout] 31: 0x5f571f8af938 - test::run_test::{{closure}}::h65f9c94bff1a7861 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/test/src/lib.rs:564:43 [INFO] [stdout] 32: 0x5f571f874d04 - test::run_test::{{closure}}::ha23ee43b6be2939d [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/test/src/lib.rs:594:41 [INFO] [stdout] 33: 0x5f571f874d04 - std::sys::backtrace::__rust_begin_short_backtrace::h160ed2f20abbd124 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x5f571f8783b2 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h076d93a5dd61b367 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/thread/mod.rs:522:17 [INFO] [stdout] 35: 0x5f571f8783b2 - as core::ops::function::FnOnce<()>>::call_once::hb7dffecae4d2a0df [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x5f571f8783b2 - std::panicking::try::do_call::h425c243d1cd119a5 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:554:40 [INFO] [stdout] 37: 0x5f571f8783b2 - std::panicking::try::h5ff57b1fa4d0634d [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:518:19 [INFO] [stdout] 38: 0x5f571f8783b2 - std::panic::catch_unwind::h69dc0395c7d606c8 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panic.rs:345:14 [INFO] [stdout] 39: 0x5f571f8783b2 - std::thread::Builder::spawn_unchecked_::{{closure}}::hd987ad26725d6b64 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/thread/mod.rs:521:30 [INFO] [stdout] 40: 0x5f571f8783b2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h262984108de629b4 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x5f571fb25abb - as core::ops::function::FnOnce>::call_once::hd6eefa32c9acf934 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/alloc/src/boxed.rs:2231:9 [INFO] [stdout] 42: 0x5f571fb25abb - as core::ops::function::FnOnce>::call_once::h6bca3a1f077b8c81 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/alloc/src/boxed.rs:2231:9 [INFO] [stdout] 43: 0x5f571fb25abb - std::sys::pal::unix::thread::Thread::new::thread_start::hcdbd1049068002f4 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x74ae75e73ac3 - [INFO] [stdout] 45: 0x74ae75f04a04 - 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:346:38: [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/./rmetaaALSyI\"\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: 0x5f571fb1f80a - std::backtrace_rs::backtrace::libunwind::trace::h99efb0985cae5d78 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x5f571fb1f80a - std::backtrace_rs::backtrace::trace_unsynchronized::he2c1aa63b3f7fad8 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5f571fb1f80a - std::sys::backtrace::_print_fmt::h8a221d40f5e0f88b [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5f571fb1f80a - ::fmt::h304520fd6a30aa07 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5f571fb45c4b - core::fmt::rt::Argument::fmt::h5da9c218ec984eaf [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/fmt/rt.rs:177:76 [INFO] [stdout] 5: 0x5f571fb45c4b - core::fmt::write::hf5713710ce10ff22 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/fmt/mod.rs:1178:21 [INFO] [stdout] 6: 0x5f571fb1ca23 - std::io::Write::write_fmt::h786683024e26df0d [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/io/mod.rs:1823:15 [INFO] [stdout] 7: 0x5f571fb21012 - std::sys::backtrace::BacktraceLock::print::hbcdbec4d97c91528 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x5f571fb21012 - std::panicking::default_hook::{{closure}}::he1ad87607d0c11c5 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:266:22 [INFO] [stdout] 9: 0x5f571fb20b53 - std::panicking::default_hook::h81c8cd2e7c59ee33 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:290:9 [INFO] [stdout] 10: 0x5f571f8ab749 - as core::ops::function::Fn>::call::h6ef31d9fe3b4da7d [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/alloc/src/boxed.rs:2245:9 [INFO] [stdout] 11: 0x5f571f8ab749 - test::test_main::{{closure}}::h97736fed204a235d [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/test/src/lib.rs:132:21 [INFO] [stdout] 12: 0x5f571fb218d2 - as core::ops::function::Fn>::call::h375ef7f99b271d16 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/alloc/src/boxed.rs:2245:9 [INFO] [stdout] 13: 0x5f571fb218d2 - std::panicking::rust_panic_with_hook::had2118629c312a4a [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:805:13 [INFO] [stdout] 14: 0x5f571fb21587 - std::panicking::begin_panic_handler::{{closure}}::h7fa5985d111bafa2 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:671:13 [INFO] [stdout] 15: 0x5f571fb1fce9 - std::sys::backtrace::__rust_end_short_backtrace::h704d151dbefa09c5 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x5f571fb21214 - rust_begin_unwind [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:662:5 [INFO] [stdout] 17: 0x5f571f85f253 - core::panicking::panic_fmt::h3eea515d05f7a35e [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/panicking.rs:74:14 [INFO] [stdout] 18: 0x5f571f85f7a6 - core::result::unwrap_failed::h7c8d8bbbcf45dc13 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/result.rs:1677:5 [INFO] [stdout] 19: 0x5f571f867c5a - core::result::Result::unwrap::h8b36dd900b52097a [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/result.rs:1102:23 [INFO] [stdout] 20: 0x5f571f867c5a - rustlings::exercise::test::test_exercise_with_output::h85096466bab4ef76 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:346:19 [INFO] [stdout] 21: 0x5f571f867a67 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hf0d8d8a0fcd02ed8 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:339:35 [INFO] [stdout] 22: 0x5f571f8611d6 - core::ops::function::FnOnce::call_once::h4f0371e0cd2ab125 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x5f571f8b004b - core::ops::function::FnOnce::call_once::h8cb4701a559728b6 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5f571f8b004b - test::__rust_begin_short_backtrace::hbd02dbd41797127f [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/test/src/lib.rs:620:18 [INFO] [stdout] 25: 0x5f571f8af938 - test::run_test_in_process::{{closure}}::h9b9c40b959cf4b0a [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/test/src/lib.rs:643:60 [INFO] [stdout] 26: 0x5f571f8af938 - as core::ops::function::FnOnce<()>>::call_once::h80ca0f237bf0daa4 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x5f571f8af938 - std::panicking::try::do_call::h74ee75d3e2d7ba36 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:554:40 [INFO] [stdout] 28: 0x5f571f8af938 - std::panicking::try::h2ae7db1dc2a281fc [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:518:19 [INFO] [stdout] 29: 0x5f571f8af938 - std::panic::catch_unwind::h25732d5472f1001d [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panic.rs:345:14 [INFO] [stdout] 30: 0x5f571f8af938 - test::run_test_in_process::h1e17135aacb29db6 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/test/src/lib.rs:643:27 [INFO] [stdout] 31: 0x5f571f8af938 - test::run_test::{{closure}}::h65f9c94bff1a7861 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/test/src/lib.rs:564:43 [INFO] [stdout] 32: 0x5f571f874d04 - test::run_test::{{closure}}::ha23ee43b6be2939d [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/test/src/lib.rs:594:41 [INFO] [stdout] 33: 0x5f571f874d04 - std::sys::backtrace::__rust_begin_short_backtrace::h160ed2f20abbd124 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x5f571f8783b2 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h076d93a5dd61b367 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/thread/mod.rs:522:17 [INFO] [stdout] 35: 0x5f571f8783b2 - as core::ops::function::FnOnce<()>>::call_once::hb7dffecae4d2a0df [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x5f571f8783b2 - std::panicking::try::do_call::h425c243d1cd119a5 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:554:40 [INFO] [stdout] 37: 0x5f571f8783b2 - std::panicking::try::h5ff57b1fa4d0634d [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panicking.rs:518:19 [INFO] [stdout] 38: 0x5f571f8783b2 - std::panic::catch_unwind::h69dc0395c7d606c8 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/panic.rs:345:14 [INFO] [stdout] 39: 0x5f571f8783b2 - std::thread::Builder::spawn_unchecked_::{{closure}}::hd987ad26725d6b64 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/thread/mod.rs:521:30 [INFO] [stdout] 40: 0x5f571f8783b2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h262984108de629b4 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x5f571fb25abb - as core::ops::function::FnOnce>::call_once::hd6eefa32c9acf934 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/alloc/src/boxed.rs:2231:9 [INFO] [stdout] 42: 0x5f571fb25abb - as core::ops::function::FnOnce>::call_once::h6bca3a1f077b8c81 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/alloc/src/boxed.rs:2231:9 [INFO] [stdout] 43: 0x5f571fb25abb - std::sys::pal::unix::thread::Thread::new::thread_start::hcdbd1049068002f4 [INFO] [stdout] at /rustc/f6e511eec7342f59a25f7c0534f1dbea00d01b14/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x74ae75e73ac3 - [INFO] [stdout] 45: 0x74ae75f04a04 - 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" "a14c8ca4d0bda34a776c865365d38fa47bfd89f23c87da74a72cde0f1ee597cf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a14c8ca4d0bda34a776c865365d38fa47bfd89f23c87da74a72cde0f1ee597cf", kill_on_drop: false }` [INFO] [stdout] a14c8ca4d0bda34a776c865365d38fa47bfd89f23c87da74a72cde0f1ee597cf