[INFO] cloning repository https://github.com/ddahon/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ddahon/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddahon%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddahon%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 83bb7fee037f7e248da4d83bf246892291777b32 [INFO] testing ddahon/rustlings against try#6c5b2f071bf9fe3a4b05942f31d42d076171aa61 for pr-115315-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fddahon%2Frustlings" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ddahon/rustlings on toolchain 6c5b2f071bf9fe3a4b05942f31d42d076171aa61 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/ddahon/rustlings [INFO] finished tweaking git repo https://github.com/ddahon/rustlings [INFO] tweaked toml for git repo https://github.com/ddahon/rustlings written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/ddahon/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" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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:f5e78b491441a5b9644e276a59809eedfadf4ee1de96655588122b3a64cb522c" "/opt/rustwide/cargo-home/bin/cargo" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 21074a59abadcd023faabddfeb8856edea2d67111c560cd1316d4f4b34719aa5 [INFO] running `Command { std: "docker" "start" "-a" "21074a59abadcd023faabddfeb8856edea2d67111c560cd1316d4f4b34719aa5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "21074a59abadcd023faabddfeb8856edea2d67111c560cd1316d4f4b34719aa5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "21074a59abadcd023faabddfeb8856edea2d67111c560cd1316d4f4b34719aa5", kill_on_drop: false }` [INFO] [stdout] 21074a59abadcd023faabddfeb8856edea2d67111c560cd1316d4f4b34719aa5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f5e78b491441a5b9644e276a59809eedfadf4ee1de96655588122b3a64cb522c" "/opt/rustwide/cargo-home/bin/cargo" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 26217b7de95aa1c6faf5ef64c4a3c05a4cf082847c2158eda92e3bd2f6f0011c [INFO] running `Command { std: "docker" "start" "-a" "26217b7de95aa1c6faf5ef64c4a3c05a4cf082847c2158eda92e3bd2f6f0011c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [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 cfg-if v1.0.0 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling itoa v1.0.2 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling home v0.5.3 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling regex v1.5.5 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling console v0.15.0 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.5.9 [INFO] [stderr] Compiling rustlings v5.4.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 43.81s [INFO] running `Command { std: "docker" "inspect" "26217b7de95aa1c6faf5ef64c4a3c05a4cf082847c2158eda92e3bd2f6f0011c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "26217b7de95aa1c6faf5ef64c4a3c05a4cf082847c2158eda92e3bd2f6f0011c", kill_on_drop: false }` [INFO] [stdout] 26217b7de95aa1c6faf5ef64c4a3c05a4cf082847c2158eda92e3bd2f6f0011c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f5e78b491441a5b9644e276a59809eedfadf4ee1de96655588122b3a64cb522c" "/opt/rustwide/cargo-home/bin/cargo" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9ea103b97223b161b1244d7f73e9efbf42212c330056f93679c0377f7fdeca5b [INFO] running `Command { std: "docker" "start" "-a" "9ea103b97223b161b1244d7f73e9efbf42212c330056f93679c0377f7fdeca5b", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [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 normalize-line-endings v0.3.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling predicates-tree v1.0.3 [INFO] [stderr] Compiling num-traits v0.2.14 [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 v5.4.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 8.07s [INFO] running `Command { std: "docker" "inspect" "9ea103b97223b161b1244d7f73e9efbf42212c330056f93679c0377f7fdeca5b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ea103b97223b161b1244d7f73e9efbf42212c330056f93679c0377f7fdeca5b", kill_on_drop: false }` [INFO] [stdout] 9ea103b97223b161b1244d7f73e9efbf42212c330056f93679c0377f7fdeca5b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f5e78b491441a5b9644e276a59809eedfadf4ee1de96655588122b3a64cb522c" "/opt/rustwide/cargo-home/bin/cargo" "+6c5b2f071bf9fe3a4b05942f31d42d076171aa61" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8e55f26cb37627fd029bacfe505d1e28f2cda19b55d7e1b28bd49cc479e47542 [INFO] running `Command { std: "docker" "start" "-a" "8e55f26cb37627fd029bacfe505d1e28f2cda19b55d7e1b28bd49cc479e47542", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-4e27a75e189bfcd9) [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:273:36: [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: 0x55648a561a6c - std::backtrace_rs::backtrace::libunwind::trace::hfd00f9ce926285a2 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x55648a561a6c - std::backtrace_rs::backtrace::trace_unsynchronized::h3aed0bb147a36095 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55648a561a6c - std::sys_common::backtrace::_print_fmt::hf3f758c78c5049cf [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x55648a561a6c - ::fmt::hbb5024c29fe24604 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x55648a58bb0c - core::fmt::rt::Argument::fmt::h3a4e0c14eb89477f [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/fmt/rt.rs:138:9 [INFO] [stdout] 5: 0x55648a58bb0c - core::fmt::write::hb6f9003acf7c0795 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/fmt/mod.rs:1094:21 [INFO] [stdout] 6: 0x55648a55eaee - std::io::Write::write_fmt::hbb984edefd24da97 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/io/mod.rs:1714:15 [INFO] [stdout] 7: 0x55648a561854 - std::sys_common::backtrace::_print::h6c53e39175e9b07a [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x55648a561854 - std::sys_common::backtrace::print::hdd203385357a5653 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x55648a56382a - std::panicking::panic_hook_with_disk_dump::{{closure}}::h2cbd71409e8b4b25 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:280:22 [INFO] [stdout] 10: 0x55648a5633ed - std::panicking::panic_hook_with_disk_dump::hcafa042b13616bb2 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:311:9 [INFO] [stdout] 11: 0x55648a3e2f3c - as core::ops::function::Fn>::call::h4495e8b5e297db7b [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/alloc/src/boxed.rs:2021:9 [INFO] [stdout] 12: 0x55648a3e2f3c - test::test_main::{{closure}}::h107e0a5fcfae9015 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/test/src/lib.rs:136:21 [INFO] [stdout] 13: 0x55648a563fc3 - as core::ops::function::Fn>::call::h197eab1dc9f608f9 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/alloc/src/boxed.rs:2021:9 [INFO] [stdout] 14: 0x55648a563fc3 - std::panicking::rust_panic_with_hook::hb33c811d299cdd2f [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:757:13 [INFO] [stdout] 15: 0x55648a563d31 - std::panicking::begin_panic_handler::{{closure}}::h86f36d5a279aa4da [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:631:13 [INFO] [stdout] 16: 0x55648a561f96 - std::sys_common::backtrace::__rust_end_short_backtrace::h55a61bd9f2207c93 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/sys_common/backtrace.rs:170:18 [INFO] [stdout] 17: 0x55648a563a72 - rust_begin_unwind [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:619:5 [INFO] [stdout] 18: 0x55648a39ba55 - core::panicking::panic_fmt::h8d4fdc73eebf4214 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x55648a39bfca - core::result::unwrap_failed::h0bd01b82c178f52d [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/result.rs:1652:5 [INFO] [stdout] 20: 0x55648a39ec3b - core::result::Result::unwrap::h5c3a0e2ff306cc53 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/result.rs:1077:23 [INFO] [stdout] 21: 0x55648a3a67c1 - rustlings::exercise::test::test_clean::h1dc9d25e7b489f5e [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:273:9 [INFO] [stdout] 22: 0x55648a3a6747 - rustlings::exercise::test::test_clean::{{closure}}::h0bf17e133f5b165c [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:272:21 [INFO] [stdout] 23: 0x55648a39d4c6 - core::ops::function::FnOnce::call_once::hb0c8bd2402b14012 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x55648a3e7fff - core::ops::function::FnOnce::call_once::h2ff26e9ba59488fb [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x55648a3e7fff - test::__rust_begin_short_backtrace::h6091627a37bc7492 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/test/src/lib.rs:626:18 [INFO] [stdout] 26: 0x55648a3e705e - test::run_test_in_process::{{closure}}::h1fa321f2e2654dc6 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/test/src/lib.rs:649:60 [INFO] [stdout] 27: 0x55648a3e705e - as core::ops::function::FnOnce<()>>::call_once::hc0f2eb10ca004d1f [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 28: 0x55648a3e705e - std::panicking::try::do_call::h76790ce48aeb9e9f [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:526:40 [INFO] [stdout] 29: 0x55648a3e705e - std::panicking::try::h6d57bd8edda059cf [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:490:19 [INFO] [stdout] 30: 0x55648a3e705e - std::panic::catch_unwind::hbd4704b47155920f [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x55648a3e705e - test::run_test_in_process::h2b28b184edce2a86 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/test/src/lib.rs:649:27 [INFO] [stdout] 32: 0x55648a3e705e - test::run_test::{{closure}}::h476b5bb511b3d12c [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/test/src/lib.rs:572:43 [INFO] [stdout] 33: 0x55648a3af7e3 - test::run_test::{{closure}}::h2bb0f5d2471c45a4 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/test/src/lib.rs:600:41 [INFO] [stdout] 34: 0x55648a3af7e3 - std::sys_common::backtrace::__rust_begin_short_backtrace::h35c85d07dced2aaa [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/sys_common/backtrace.rs:154:18 [INFO] [stdout] 35: 0x55648a3b49eb - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h35429ec76dbc1355 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 36: 0x55648a3b49eb - as core::ops::function::FnOnce<()>>::call_once::hdf07407df9b1381a [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 37: 0x55648a3b49eb - std::panicking::try::do_call::h49b322add02b8625 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:526:40 [INFO] [stdout] 38: 0x55648a3b49eb - std::panicking::try::hd8b399b683797d7f [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:490:19 [INFO] [stdout] 39: 0x55648a3b49eb - std::panic::catch_unwind::he6e5371f5e15ed1f [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x55648a3b49eb - std::thread::Builder::spawn_unchecked_::{{closure}}::h72fa03d7b427e994 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 41: 0x55648a3b49eb - core::ops::function::FnOnce::call_once{{vtable.shim}}::h33f0f977a916df2d [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x55648a568865 - as core::ops::function::FnOnce>::call_once::h23a2d33c7d72aa48 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/alloc/src/boxed.rs:2007:9 [INFO] [stdout] 43: 0x55648a568865 - as core::ops::function::FnOnce>::call_once::h6515c48eb14c7e51 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/alloc/src/boxed.rs:2007:9 [INFO] [stdout] 44: 0x55648a568865 - std::sys::unix::thread::Thread::new::thread_start::h89f0e60d21bba881 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7f552aea6b43 - [INFO] [stdout] 46: 0x7f552af37bb4 - __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: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/./rmetavMV3L7\"\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 previous error\u{1b}[0m\n\n" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55648a561a6c - std::backtrace_rs::backtrace::libunwind::trace::hfd00f9ce926285a2 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x55648a561a6c - std::backtrace_rs::backtrace::trace_unsynchronized::h3aed0bb147a36095 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55648a561a6c - std::sys_common::backtrace::_print_fmt::hf3f758c78c5049cf [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x55648a561a6c - ::fmt::hbb5024c29fe24604 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x55648a58bb0c - core::fmt::rt::Argument::fmt::h3a4e0c14eb89477f [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/fmt/rt.rs:138:9 [INFO] [stdout] 5: 0x55648a58bb0c - core::fmt::write::hb6f9003acf7c0795 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/fmt/mod.rs:1094:21 [INFO] [stdout] 6: 0x55648a55eaee - std::io::Write::write_fmt::hbb984edefd24da97 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/io/mod.rs:1714:15 [INFO] [stdout] 7: 0x55648a561854 - std::sys_common::backtrace::_print::h6c53e39175e9b07a [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x55648a561854 - std::sys_common::backtrace::print::hdd203385357a5653 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x55648a56382a - std::panicking::panic_hook_with_disk_dump::{{closure}}::h2cbd71409e8b4b25 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:280:22 [INFO] [stdout] 10: 0x55648a5633ed - std::panicking::panic_hook_with_disk_dump::hcafa042b13616bb2 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:311:9 [INFO] [stdout] 11: 0x55648a3e2f3c - as core::ops::function::Fn>::call::h4495e8b5e297db7b [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/alloc/src/boxed.rs:2021:9 [INFO] [stdout] 12: 0x55648a3e2f3c - test::test_main::{{closure}}::h107e0a5fcfae9015 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/test/src/lib.rs:136:21 [INFO] [stdout] 13: 0x55648a563fc3 - as core::ops::function::Fn>::call::h197eab1dc9f608f9 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/alloc/src/boxed.rs:2021:9 [INFO] [stdout] 14: 0x55648a563fc3 - std::panicking::rust_panic_with_hook::hb33c811d299cdd2f [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:757:13 [INFO] [stdout] 15: 0x55648a563d31 - std::panicking::begin_panic_handler::{{closure}}::h86f36d5a279aa4da [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:631:13 [INFO] [stdout] 16: 0x55648a561f96 - std::sys_common::backtrace::__rust_end_short_backtrace::h55a61bd9f2207c93 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/sys_common/backtrace.rs:170:18 [INFO] [stdout] 17: 0x55648a563a72 - rust_begin_unwind [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:619:5 [INFO] [stdout] 18: 0x55648a39ba55 - core::panicking::panic_fmt::h8d4fdc73eebf4214 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x55648a39bfca - core::result::unwrap_failed::h0bd01b82c178f52d [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/result.rs:1652:5 [INFO] [stdout] 20: 0x55648a39ecfb - core::result::Result::unwrap::h999e28cffe95966b [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/result.rs:1077:23 [INFO] [stdout] 21: 0x55648a3a74cc - rustlings::exercise::test::test_exercise_with_output::h6c1dcb48df3b187a [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:346:19 [INFO] [stdout] 22: 0x55648a3a7367 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hfb425ea513099f06 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:339:36 [INFO] [stdout] 23: 0x55648a39d506 - core::ops::function::FnOnce::call_once::hbc4a6d87fc7eabd2 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x55648a3e7fff - core::ops::function::FnOnce::call_once::h2ff26e9ba59488fb [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x55648a3e7fff - test::__rust_begin_short_backtrace::h6091627a37bc7492 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/test/src/lib.rs:626:18 [INFO] [stdout] 26: 0x55648a3e705e - test::run_test_in_process::{{closure}}::h1fa321f2e2654dc6 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/test/src/lib.rs:649:60 [INFO] [stdout] 27: 0x55648a3e705e - as core::ops::function::FnOnce<()>>::call_once::hc0f2eb10ca004d1f [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 28: 0x55648a3e705e - std::panicking::try::do_call::h76790ce48aeb9e9f [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:526:40 [INFO] [stdout] 29: 0x55648a3e705e - std::panicking::try::h6d57bd8edda059cf [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:490:19 [INFO] [stdout] 30: 0x55648a3e705e - std::panic::catch_unwind::hbd4704b47155920f [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x55648a3e705e - test::run_test_in_process::h2b28b184edce2a86 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/test/src/lib.rs:649:27 [INFO] [stdout] 32: 0x55648a3e705e - test::run_test::{{closure}}::h476b5bb511b3d12c [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/test/src/lib.rs:572:43 [INFO] [stdout] 33: 0x55648a3af7e3 - test::run_test::{{closure}}::h2bb0f5d2471c45a4 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/test/src/lib.rs:600:41 [INFO] [stdout] 34: 0x55648a3af7e3 - std::sys_common::backtrace::__rust_begin_short_backtrace::h35c85d07dced2aaa [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/sys_common/backtrace.rs:154:18 [INFO] [stdout] 35: 0x55648a3b49eb - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h35429ec76dbc1355 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 36: 0x55648a3b49eb - as core::ops::function::FnOnce<()>>::call_once::hdf07407df9b1381a [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 37: 0x55648a3b49eb - std::panicking::try::do_call::h49b322add02b8625 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:526:40 [INFO] [stdout] 38: 0x55648a3b49eb - std::panicking::try::hd8b399b683797d7f [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panicking.rs:490:19 [INFO] [stdout] 39: 0x55648a3b49eb - std::panic::catch_unwind::he6e5371f5e15ed1f [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x55648a3b49eb - std::thread::Builder::spawn_unchecked_::{{closure}}::h72fa03d7b427e994 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 41: 0x55648a3b49eb - core::ops::function::FnOnce::call_once{{vtable.shim}}::h33f0f977a916df2d [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x55648a568865 - as core::ops::function::FnOnce>::call_once::h23a2d33c7d72aa48 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/alloc/src/boxed.rs:2007:9 [INFO] [stdout] 43: 0x55648a568865 - as core::ops::function::FnOnce>::call_once::h6515c48eb14c7e51 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/alloc/src/boxed.rs:2007:9 [INFO] [stdout] 44: 0x55648a568865 - std::sys::unix::thread::Thread::new::thread_start::h89f0e60d21bba881 [INFO] [stdout] at /rustc/6c5b2f071bf9fe3a4b05942f31d42d076171aa61/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7f552aea6b43 - [INFO] [stdout] 46: 0x7f552af37bb4 - __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 0.10s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "8e55f26cb37627fd029bacfe505d1e28f2cda19b55d7e1b28bd49cc479e47542", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8e55f26cb37627fd029bacfe505d1e28f2cda19b55d7e1b28bd49cc479e47542", kill_on_drop: false }` [INFO] [stdout] 8e55f26cb37627fd029bacfe505d1e28f2cda19b55d7e1b28bd49cc479e47542