[INFO] cloning repository https://github.com/rohitas-git/practice_rust2 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rohitas-git/practice_rust2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frohitas-git%2Fpractice_rust2", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frohitas-git%2Fpractice_rust2'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9ec35d899ce4002b6e1703185dd1f5243d80e30a [INFO] testing rohitas-git/practice_rust2 against master#1871252fc8bb672d40787e67404e6eaae7059369 for pr-125151 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frohitas-git%2Fpractice_rust2" "/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/rohitas-git/practice_rust2 on toolchain 1871252fc8bb672d40787e67404e6eaae7059369 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rohitas-git/practice_rust2 [INFO] finished tweaking git repo https://github.com/rohitas-git/practice_rust2 [INFO] tweaked toml for git repo https://github.com/rohitas-git/practice_rust2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/rohitas-git/practice_rust2 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" "+1871252fc8bb672d40787e67404e6eaae7059369" "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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 16706ff7b3fb7f6a1b3ace05ad01cf842328fc5e707f9e16868de95b2eef9cad [INFO] running `Command { std: "docker" "start" "-a" "16706ff7b3fb7f6a1b3ace05ad01cf842328fc5e707f9e16868de95b2eef9cad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "16706ff7b3fb7f6a1b3ace05ad01cf842328fc5e707f9e16868de95b2eef9cad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16706ff7b3fb7f6a1b3ace05ad01cf842328fc5e707f9e16868de95b2eef9cad", kill_on_drop: false }` [INFO] [stdout] 16706ff7b3fb7f6a1b3ace05ad01cf842328fc5e707f9e16868de95b2eef9cad [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=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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d7db014a09cd34d841b25536904fc4669d5d4f22478c0d2287224acfe1b19746 [INFO] running `Command { std: "docker" "start" "-a" "d7db014a09cd34d841b25536904fc4669d5d4f22478c0d2287224acfe1b19746", 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 cfg-if v1.0.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling iovec v0.1.4 [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 mio v0.6.23 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling regex v1.5.4 [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 v4.7.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.24s [INFO] running `Command { std: "docker" "inspect" "d7db014a09cd34d841b25536904fc4669d5d4f22478c0d2287224acfe1b19746", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d7db014a09cd34d841b25536904fc4669d5d4f22478c0d2287224acfe1b19746", kill_on_drop: false }` [INFO] [stdout] d7db014a09cd34d841b25536904fc4669d5d4f22478c0d2287224acfe1b19746 [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=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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7a801f85eefa275c11ca7cdbf5e5bfbd32aaf117b3135c615b64413f2e009d97 [INFO] running `Command { std: "docker" "start" "-a" "7a801f85eefa275c11ca7cdbf5e5bfbd32aaf117b3135c615b64413f2e009d97", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling predicates-core v1.0.2 [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 glob v0.3.0 [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 v4.7.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 2.44s [INFO] running `Command { std: "docker" "inspect" "7a801f85eefa275c11ca7cdbf5e5bfbd32aaf117b3135c615b64413f2e009d97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7a801f85eefa275c11ca7cdbf5e5bfbd32aaf117b3135c615b64413f2e009d97", kill_on_drop: false }` [INFO] [stdout] 7a801f85eefa275c11ca7cdbf5e5bfbd32aaf117b3135c615b64413f2e009d97 [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=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@sha256:59a85a07ab18ca8720692f8e61effa1c651d9e2ca591e072c2b212bb91a6b8b5" "/opt/rustwide/cargo-home/bin/cargo" "+1871252fc8bb672d40787e67404e6eaae7059369" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 8f9fb5bc3a3479ea7f7d011f2f433d9307961a0ef05e30439d717de9e922446e [INFO] running `Command { std: "docker" "start" "-a" "8f9fb5bc3a3479ea7f7d011f2f433d9307961a0ef05e30439d717de9e922446e", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rustlings-a808c5cdc396339a) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-f2e21f6622efd743) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test exercise::test::test_finished_exercise ... ok [INFO] [stdout] test exercise::test::test_pending_state ... ok [INFO] [stdout] test exercise::test::test_clean ... FAILED [INFO] [stdout] test exercise::test::test_exercise_with_output ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_clean stdout ---- [INFO] [stdout] thread 'exercise::test::test_clean' panicked at src/exercise.rs:269:36: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x557f03fca225 - std::backtrace_rs::backtrace::libunwind::trace::h59d96bdb08384354 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5 [INFO] [stdout] 1: 0x557f03fca225 - std::backtrace_rs::backtrace::trace_unsynchronized::h9cf5becacfc93fba [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x557f03fca225 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x557f03fca225 - ::fmt::h6ed9e62a156d84e4 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x557f03ff0c7b - core::fmt::rt::Argument::fmt::h645c680983f03c9f [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63 [INFO] [stdout] 5: 0x557f03ff0c7b - core::fmt::write::h8bcd80919a02be29 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21 [INFO] [stdout] 6: 0x557f03fc7a4f - std::io::Write::write_fmt::h8d0c47c662cad79c [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15 [INFO] [stdout] 7: 0x557f03fc9ffe - std::sys_common::backtrace::_print::h6306f131a28d62b0 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x557f03fc9ffe - std::sys_common::backtrace::print::h7079288e0a26dfcc [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x557f03fcba29 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba [INFO] [stdout] 10: 0x557f03fcb6ee - std::panicking::default_hook::hd56ee406bf547b5c [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:295:9 [INFO] [stdout] 11: 0x557f03e5792a - as core::ops::function::Fn>::call::he5eacdef44c8728f [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2036:9 [INFO] [stdout] 12: 0x557f03e5792a - test::test_main::{{closure}}::h0ec9aed229e79095 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:137:21 [INFO] [stdout] 13: 0x557f03fcc02b - as core::ops::function::Fn>::call::hcbd0d80e1ad4e4f9 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2036:9 [INFO] [stdout] 14: 0x557f03fcc02b - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:799:13 [INFO] [stdout] 15: 0x557f03fcbda4 - std::panicking::begin_panic_handler::{{closure}}::hbc4e76194a5e287c [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:664:13 [INFO] [stdout] 16: 0x557f03fca6e9 - std::sys_common::backtrace::__rust_end_short_backtrace::h847fedc9d1ff7b6d [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x557f03fcbad7 - rust_begin_unwind [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:652:5 [INFO] [stdout] 18: 0x557f03e10e33 - core::panicking::panic_fmt::hec11a924b87ce965 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x557f03e113a6 - core::result::unwrap_failed::h382691b96ca8c13a [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/result.rs:1654:5 [INFO] [stdout] 20: 0x557f03e177ba - core::result::Result::unwrap::hb38f914f70780e4b [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/result.rs:1077:23 [INFO] [stdout] 21: 0x557f03e177ba - rustlings::exercise::test::test_clean::h4ab2d0d6f7c51a8f [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:9 [INFO] [stdout] 22: 0x557f03e176f7 - rustlings::exercise::test::test_clean::{{closure}}::h85e64c7fe6efb858 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:268:20 [INFO] [stdout] 23: 0x557f03e1a1b6 - core::ops::function::FnOnce::call_once::h840685d397571b14 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x557f03e5c30b - core::ops::function::FnOnce::call_once::h2e43a8f6f3d94b99 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x557f03e5c30b - test::__rust_begin_short_backtrace::h214c9f2d2d3fee90 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:625:18 [INFO] [stdout] 26: 0x557f03e5ba11 - test::run_test_in_process::{{closure}}::h510b7ba7990692a5 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:648:60 [INFO] [stdout] 27: 0x557f03e5ba11 - as core::ops::function::FnOnce<()>>::call_once::h4157186197a93871 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x557f03e5ba11 - std::panicking::try::do_call::h1bf2463bccd4b28c [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40 [INFO] [stdout] 29: 0x557f03e5ba11 - std::panicking::try::hd6d4808c9fab4fa5 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19 [INFO] [stdout] 30: 0x557f03e5ba11 - std::panic::catch_unwind::hd5641d97d123f9f2 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14 [INFO] [stdout] 31: 0x557f03e5ba11 - test::run_test_in_process::hc273b71c8b878a4c [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:648:27 [INFO] [stdout] 32: 0x557f03e5ba11 - test::run_test::{{closure}}::h6838df834eb8467e [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:569:43 [INFO] [stdout] 33: 0x557f03e243d4 - test::run_test::{{closure}}::h608b98ecff5665fb [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:599:41 [INFO] [stdout] 34: 0x557f03e243d4 - std::sys_common::backtrace::__rust_begin_short_backtrace::hdc4182b97d1042e9 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x557f03e28e02 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h571773fd21d674c8 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/thread/mod.rs:542:17 [INFO] [stdout] 36: 0x557f03e28e02 - as core::ops::function::FnOnce<()>>::call_once::hdcd384cf2fa70ba3 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x557f03e28e02 - std::panicking::try::do_call::h4f1a44bd81423be1 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40 [INFO] [stdout] 38: 0x557f03e28e02 - std::panicking::try::h5e02afcb81dcd361 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19 [INFO] [stdout] 39: 0x557f03e28e02 - std::panic::catch_unwind::h022f75775bfd8c45 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14 [INFO] [stdout] 40: 0x557f03e28e02 - std::thread::Builder::spawn_unchecked_::{{closure}}::hf5a62e9e4e6df1f8 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/thread/mod.rs:541:30 [INFO] [stdout] 41: 0x557f03e28e02 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6d56360aeb9509a7 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x557f03fd03db - as core::ops::function::FnOnce>::call_once::h7a343dc551c06baa [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2022:9 [INFO] [stdout] 43: 0x557f03fd03db - as core::ops::function::FnOnce>::call_once::h30b8111cbaa644f3 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2022:9 [INFO] [stdout] 44: 0x557f03fd03db - std::sys::pal::unix::thread::Thread::new::thread_start::h7404e134e61e7a11 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys/pal/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7fea34b30ac3 - [INFO] [stdout] 46: 0x7fea34bc1a04 - __clone [INFO] [stdout] 47: 0x0 - [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ---- [INFO] [stdout] thread 'exercise::test::test_exercise_with_output' panicked at src/exercise.rs:342:38: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: ExerciseOutput { stdout: "", stderr: "\u{1b}[0m\u{1b}[1m\u{1b}[38;5;9merror\u{1b}[0m\u{1b}[0m\u{1b}[1m: couldn't create a temp dir: Read-only file system (os error 30) at path \"/opt/rustwide/workdir/./rmetarSmRUz\"\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: 0x557f03fca225 - std::backtrace_rs::backtrace::libunwind::trace::h59d96bdb08384354 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5 [INFO] [stdout] 1: 0x557f03fca225 - std::backtrace_rs::backtrace::trace_unsynchronized::h9cf5becacfc93fba [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x557f03fca225 - std::sys_common::backtrace::_print_fmt::h10b76d10405dbd48 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x557f03fca225 - ::fmt::h6ed9e62a156d84e4 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x557f03ff0c7b - core::fmt::rt::Argument::fmt::h645c680983f03c9f [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/rt.rs:165:63 [INFO] [stdout] 5: 0x557f03ff0c7b - core::fmt::write::h8bcd80919a02be29 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/fmt/mod.rs:1169:21 [INFO] [stdout] 6: 0x557f03fc7a4f - std::io::Write::write_fmt::h8d0c47c662cad79c [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/io/mod.rs:1835:15 [INFO] [stdout] 7: 0x557f03fc9ffe - std::sys_common::backtrace::_print::h6306f131a28d62b0 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x557f03fc9ffe - std::sys_common::backtrace::print::h7079288e0a26dfcc [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x557f03fcba29 - std::panicking::default_hook::{{closure}}::hb063ecec81a736ba [INFO] [stdout] 10: 0x557f03fcb6ee - std::panicking::default_hook::hd56ee406bf547b5c [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:295:9 [INFO] [stdout] 11: 0x557f03e5792a - as core::ops::function::Fn>::call::he5eacdef44c8728f [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2036:9 [INFO] [stdout] 12: 0x557f03e5792a - test::test_main::{{closure}}::h0ec9aed229e79095 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:137:21 [INFO] [stdout] 13: 0x557f03fcc02b - as core::ops::function::Fn>::call::hcbd0d80e1ad4e4f9 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2036:9 [INFO] [stdout] 14: 0x557f03fcc02b - std::panicking::rust_panic_with_hook::h624aa3ca42ebb8f2 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:799:13 [INFO] [stdout] 15: 0x557f03fcbda4 - std::panicking::begin_panic_handler::{{closure}}::hbc4e76194a5e287c [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:664:13 [INFO] [stdout] 16: 0x557f03fca6e9 - std::sys_common::backtrace::__rust_end_short_backtrace::h847fedc9d1ff7b6d [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x557f03fcbad7 - rust_begin_unwind [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:652:5 [INFO] [stdout] 18: 0x557f03e10e33 - core::panicking::panic_fmt::hec11a924b87ce965 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x557f03e113a6 - core::result::unwrap_failed::h382691b96ca8c13a [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/result.rs:1654:5 [INFO] [stdout] 20: 0x557f03e18606 - core::result::Result::unwrap::h669c0ecd192dfe2e [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/result.rs:1077:23 [INFO] [stdout] 21: 0x557f03e18606 - rustlings::exercise::test::test_exercise_with_output::haa854272dde61802 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:342:19 [INFO] [stdout] 22: 0x557f03e18417 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h34362b2783fa5f51 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:335:35 [INFO] [stdout] 23: 0x557f03e1a126 - core::ops::function::FnOnce::call_once::h40084186bf8cacac [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x557f03e5c30b - core::ops::function::FnOnce::call_once::h2e43a8f6f3d94b99 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x557f03e5c30b - test::__rust_begin_short_backtrace::h214c9f2d2d3fee90 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:625:18 [INFO] [stdout] 26: 0x557f03e5ba11 - test::run_test_in_process::{{closure}}::h510b7ba7990692a5 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:648:60 [INFO] [stdout] 27: 0x557f03e5ba11 - as core::ops::function::FnOnce<()>>::call_once::h4157186197a93871 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x557f03e5ba11 - std::panicking::try::do_call::h1bf2463bccd4b28c [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40 [INFO] [stdout] 29: 0x557f03e5ba11 - std::panicking::try::hd6d4808c9fab4fa5 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19 [INFO] [stdout] 30: 0x557f03e5ba11 - std::panic::catch_unwind::hd5641d97d123f9f2 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14 [INFO] [stdout] 31: 0x557f03e5ba11 - test::run_test_in_process::hc273b71c8b878a4c [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:648:27 [INFO] [stdout] 32: 0x557f03e5ba11 - test::run_test::{{closure}}::h6838df834eb8467e [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:569:43 [INFO] [stdout] 33: 0x557f03e243d4 - test::run_test::{{closure}}::h608b98ecff5665fb [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/test/src/lib.rs:599:41 [INFO] [stdout] 34: 0x557f03e243d4 - std::sys_common::backtrace::__rust_begin_short_backtrace::hdc4182b97d1042e9 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x557f03e28e02 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h571773fd21d674c8 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/thread/mod.rs:542:17 [INFO] [stdout] 36: 0x557f03e28e02 - as core::ops::function::FnOnce<()>>::call_once::hdcd384cf2fa70ba3 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x557f03e28e02 - std::panicking::try::do_call::h4f1a44bd81423be1 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:559:40 [INFO] [stdout] 38: 0x557f03e28e02 - std::panicking::try::h5e02afcb81dcd361 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panicking.rs:523:19 [INFO] [stdout] 39: 0x557f03e28e02 - std::panic::catch_unwind::h022f75775bfd8c45 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/panic.rs:149:14 [INFO] [stdout] 40: 0x557f03e28e02 - std::thread::Builder::spawn_unchecked_::{{closure}}::hf5a62e9e4e6df1f8 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/thread/mod.rs:541:30 [INFO] [stdout] 41: 0x557f03e28e02 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h6d56360aeb9509a7 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x557f03fd03db - as core::ops::function::FnOnce>::call_once::h7a343dc551c06baa [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2022:9 [INFO] [stdout] 43: 0x557f03fd03db - as core::ops::function::FnOnce>::call_once::h30b8111cbaa644f3 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/alloc/src/boxed.rs:2022:9 [INFO] [stdout] 44: 0x557f03fd03db - std::sys::pal::unix::thread::Thread::new::thread_start::h7404e134e61e7a11 [INFO] [stdout] at /rustc/1871252fc8bb672d40787e67404e6eaae7059369/library/std/src/sys/pal/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7fea34b30ac3 - [INFO] [stdout] 46: 0x7fea34bc1a04 - __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 0.04s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "8f9fb5bc3a3479ea7f7d011f2f433d9307961a0ef05e30439d717de9e922446e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8f9fb5bc3a3479ea7f7d011f2f433d9307961a0ef05e30439d717de9e922446e", kill_on_drop: false }` [INFO] [stdout] 8f9fb5bc3a3479ea7f7d011f2f433d9307961a0ef05e30439d717de9e922446e