[INFO] cloning repository https://github.com/Akelio-zhang/rustlings-solutions [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Akelio-zhang/rustlings-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkelio-zhang%2Frustlings-solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkelio-zhang%2Frustlings-solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ead6ed4addc450befb60ff694aa41985a3691776 [INFO] testing Akelio-zhang/rustlings-solutions against master#6c20ab744b0f82646d90ce9d25894823abc9c669 for pr-99093 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAkelio-zhang%2Frustlings-solutions" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Akelio-zhang/rustlings-solutions on toolchain 6c20ab744b0f82646d90ce9d25894823abc9c669 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Akelio-zhang/rustlings-solutions [INFO] finished tweaking git repo https://github.com/Akelio-zhang/rustlings-solutions [INFO] tweaked toml for git repo https://github.com/Akelio-zhang/rustlings-solutions written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/Akelio-zhang/rustlings-solutions already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded encode_unicode v0.3.5 [INFO] [stderr] Downloaded indicatif v0.10.3 [INFO] [stderr] Downloaded regex v1.1.6 [INFO] [stderr] Downloaded clicolors-control v1.0.0 [INFO] [stderr] Downloaded console v0.8.0 [INFO] [stderr] Downloaded float-cmp v0.4.0 [INFO] [stderr] Downloaded regex-syntax v0.6.6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a7aab68ae8b672c67cc943518adf3e1ce823037a0a7f707a54cbbd0c4f86631c [INFO] running `Command { std: "docker" "start" "-a" "a7aab68ae8b672c67cc943518adf3e1ce823037a0a7f707a54cbbd0c4f86631c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a7aab68ae8b672c67cc943518adf3e1ce823037a0a7f707a54cbbd0c4f86631c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a7aab68ae8b672c67cc943518adf3e1ce823037a0a7f707a54cbbd0c4f86631c", kill_on_drop: false }` [INFO] [stdout] a7aab68ae8b672c67cc943518adf3e1ce823037a0a7f707a54cbbd0c4f86631c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c7c9581a81d923f3837b93d1cede141d62755664386455a3979d765a01010de0 [INFO] running `Command { std: "docker" "start" "-a" "c7c9581a81d923f3837b93d1cede141d62755664386455a3979d765a01010de0", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Compiling rand_core v0.4.0 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling ucd-util v0.1.3 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Compiling unicode-width v0.1.5 [INFO] [stderr] Compiling utf8-ranges v1.0.2 [INFO] [stderr] Compiling smallvec v0.6.9 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling serde v1.0.92 [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling lazycell v1.2.1 [INFO] [stderr] Compiling same-file v1.0.4 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling lock_api v0.2.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling regex-syntax v0.6.6 [INFO] [stderr] Compiling walkdir v2.2.7 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling clicolors-control v1.0.0 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling termios v0.3.1 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling inotify-sys v0.1.3 [INFO] [stderr] Compiling filetime v0.2.5 [INFO] [stderr] Compiling aho-corasick v0.7.3 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling inotify v0.7.0 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling number_prefix v0.2.8 [INFO] [stderr] Compiling mio-extras v2.0.5 [INFO] [stderr] Compiling notify v4.0.15 [INFO] [stderr] Compiling console v0.8.0 [INFO] [stderr] Compiling console v0.7.7 [INFO] [stderr] Compiling indicatif v0.10.3 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v4.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 16.32s [INFO] running `Command { std: "docker" "inspect" "c7c9581a81d923f3837b93d1cede141d62755664386455a3979d765a01010de0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c7c9581a81d923f3837b93d1cede141d62755664386455a3979d765a01010de0", kill_on_drop: false }` [INFO] [stdout] c7c9581a81d923f3837b93d1cede141d62755664386455a3979d765a01010de0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f0cc4c25bce48138f7a12f2a6a6bc1dd73e551ad9a5e7c68d43b0b0f972b8688 [INFO] running `Command { std: "docker" "start" "-a" "f0cc4c25bce48138f7a12f2a6a6bc1dd73e551ad9a5e7c68d43b0b0f972b8688", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v0.2.8 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling predicates-core v1.0.0 [INFO] [stderr] Compiling itoa v0.4.4 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling normalize-line-endings v0.2.2 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling float-cmp v0.4.0 [INFO] [stderr] Compiling predicates-tree v1.0.0 [INFO] [stderr] Compiling predicates v1.0.1 [INFO] [stderr] Compiling serde_json v1.0.39 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v4.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 4.71s [INFO] running `Command { std: "docker" "inspect" "f0cc4c25bce48138f7a12f2a6a6bc1dd73e551ad9a5e7c68d43b0b0f972b8688", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f0cc4c25bce48138f7a12f2a6a6bc1dd73e551ad9a5e7c68d43b0b0f972b8688", kill_on_drop: false }` [INFO] [stdout] f0cc4c25bce48138f7a12f2a6a6bc1dd73e551ad9a5e7c68d43b0b0f972b8688 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:5873ed620acfc3295992aedd9294443d62a478a48ba243bc5e6c4f5abaffa05f" "/opt/rustwide/cargo-home/bin/cargo" "+6c20ab744b0f82646d90ce9d25894823abc9c669" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 790d1eb2ccf324b465efccb0af9ffdaef1a4b2f97252e07ee00df195d8cc8d50 [INFO] running `Command { std: "docker" "start" "-a" "790d1eb2ccf324b465efccb0af9ffdaef1a4b2f97252e07ee00df195d8cc8d50", 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-44fce14e0ba3298b) [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 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }', src/exercise.rs:250:36 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5564b44fe5e0 - std::backtrace_rs::backtrace::libunwind::trace::h5cec5ee957007983 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 1: 0x5564b44fe5e0 - std::backtrace_rs::backtrace::trace_unsynchronized::h3912ce6f9cd18e05 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5564b44fe5e0 - std::sys_common::backtrace::_print_fmt::h0b3fbca24cbc1b41 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stdout] 3: 0x5564b44fe5e0 - ::fmt::hc7b35b5b2e247560 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stdout] 4: 0x5564b452143c - core::fmt::write::h2d806358caa3f689 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/fmt/mod.rs:1198:17 [INFO] [stdout] 5: 0x5564b44fafe5 - std::io::Write::write_fmt::hf9535056206ea98c [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/io/mod.rs:1672:15 [INFO] [stdout] 6: 0x5564b4500021 - std::sys_common::backtrace::_print::h51a933838ceebaa0 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stdout] 7: 0x5564b4500021 - std::sys_common::backtrace::print::hc53e3ead445b016c [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stdout] 8: 0x5564b4500021 - std::panicking::default_hook::{{closure}}::hbc895cb9b7ebea62 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:295:22 [INFO] [stdout] 9: 0x5564b44ffc76 - std::panicking::default_hook::h664409a8548f2cc0 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:311:9 [INFO] [stdout] 10: 0x5564b45006c3 - std::panicking::rust_panic_with_hook::h947033eb042c9758 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:698:17 [INFO] [stdout] 11: 0x5564b45005b7 - std::panicking::begin_panic_handler::{{closure}}::haef8fa2237a58bae [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:588:13 [INFO] [stdout] 12: 0x5564b44feab4 - std::sys_common::backtrace::__rust_end_short_backtrace::hadb599ff5bdd6123 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stdout] 13: 0x5564b45002e2 - rust_begin_unwind [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:584:5 [INFO] [stdout] 14: 0x5564b4329283 - core::panicking::panic_fmt::hcf9e3bddea69ce9b [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/panicking.rs:142:14 [INFO] [stdout] 15: 0x5564b4329373 - core::result::unwrap_failed::h19364dd252eca818 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/result.rs:1805:5 [INFO] [stdout] 16: 0x5564b432c9b0 - core::result::Result::unwrap::h7a5558e59d1c0e8a [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/result.rs:1098:23 [INFO] [stdout] 17: 0x5564b43355f9 - rustlings::exercise::test::test_clean::h7faa69aff5715416 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:250:9 [INFO] [stdout] 18: 0x5564b433558a - rustlings::exercise::test::test_clean::{{closure}}::h068a70316d795cdf [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:249:5 [INFO] [stdout] 19: 0x5564b433406e - core::ops::function::FnOnce::call_once::hcb98c7588083ecfa [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 20: 0x5564b436c1b3 - core::ops::function::FnOnce::call_once::ha891352f3b456c56 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 21: 0x5564b436c1b3 - test::__rust_begin_short_backtrace::he74ff8fcbc6e1bf3 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/test/src/lib.rs:572:5 [INFO] [stdout] 22: 0x5564b436af3c - as core::ops::function::FnOnce>::call_once::ha7d4b5f90d4ff94a [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/alloc/src/boxed.rs:1934:9 [INFO] [stdout] 23: 0x5564b436af3c - as core::ops::function::FnOnce<()>>::call_once::hff61630ec6da6d9c [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 24: 0x5564b436af3c - std::panicking::try::do_call::h25bb9ce20414cc9e [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:492:40 [INFO] [stdout] 25: 0x5564b436af3c - std::panicking::try::h879f2193a4184aae [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:456:19 [INFO] [stdout] 26: 0x5564b436af3c - std::panic::catch_unwind::hef4ed77ae7d42ef7 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panic.rs:137:14 [INFO] [stdout] 27: 0x5564b436af3c - test::run_test_in_process::h45393ffc6f2bda93 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/test/src/lib.rs:595:18 [INFO] [stdout] 28: 0x5564b436af3c - test::run_test::run_test_inner::{{closure}}::h374abe809bc519ae [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/test/src/lib.rs:489:39 [INFO] [stdout] 29: 0x5564b4336b7c - test::run_test::run_test_inner::{{closure}}::h8d8ea5cb4864a81a [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/test/src/lib.rs:516:37 [INFO] [stdout] 30: 0x5564b4336b7c - std::sys_common::backtrace::__rust_begin_short_backtrace::hae3d1543273744a4 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stdout] 31: 0x5564b433cabf - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9979fffcdc02fb98 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/thread/mod.rs:505:17 [INFO] [stdout] 32: 0x5564b433cabf - as core::ops::function::FnOnce<()>>::call_once::h43a127bea61ae81a [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 33: 0x5564b433cabf - std::panicking::try::do_call::h1dd85209b01bc737 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:492:40 [INFO] [stdout] 34: 0x5564b433cabf - std::panicking::try::h308a79a6f4b54c2d [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:456:19 [INFO] [stdout] 35: 0x5564b433cabf - std::panic::catch_unwind::h5cf0d96d2eddcf0c [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panic.rs:137:14 [INFO] [stdout] 36: 0x5564b433cabf - std::thread::Builder::spawn_unchecked_::{{closure}}::hcc55c81e5bc7e1fc [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/thread/mod.rs:504:30 [INFO] [stdout] 37: 0x5564b433cabf - core::ops::function::FnOnce::call_once{{vtable.shim}}::h53c6f5ca915705b9 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 38: 0x5564b4504de3 - as core::ops::function::FnOnce>::call_once::h8644474d961275e7 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/alloc/src/boxed.rs:1934:9 [INFO] [stdout] 39: 0x5564b4504de3 - as core::ops::function::FnOnce>::call_once::hfd68b25ee06fd9db [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/alloc/src/boxed.rs:1934:9 [INFO] [stdout] 40: 0x5564b4504de3 - std::sys::unix::thread::Thread::new::thread_start::heb02daf84d178e59 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 41: 0x7fa69957a609 - start_thread [INFO] [stdout] 42: 0x7fa6996cf133 - clone [INFO] [stdout] 43: 0x0 - [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ---- [INFO] [stdout] thread 'exercise::test::test_exercise_with_output' panicked at '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: could not write output to ./temp_7.629264l4it2da9l.rcgu.o: Read-only file system\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" }', src/exercise.rs:323:38 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5564b44fe5e0 - std::backtrace_rs::backtrace::libunwind::trace::h5cec5ee957007983 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 1: 0x5564b44fe5e0 - std::backtrace_rs::backtrace::trace_unsynchronized::h3912ce6f9cd18e05 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5564b44fe5e0 - std::sys_common::backtrace::_print_fmt::h0b3fbca24cbc1b41 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stdout] 3: 0x5564b44fe5e0 - ::fmt::hc7b35b5b2e247560 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stdout] 4: 0x5564b452143c - core::fmt::write::h2d806358caa3f689 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/fmt/mod.rs:1198:17 [INFO] [stdout] 5: 0x5564b44fafe5 - std::io::Write::write_fmt::hf9535056206ea98c [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/io/mod.rs:1672:15 [INFO] [stdout] 6: 0x5564b4500021 - std::sys_common::backtrace::_print::h51a933838ceebaa0 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stdout] 7: 0x5564b4500021 - std::sys_common::backtrace::print::hc53e3ead445b016c [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stdout] 8: 0x5564b4500021 - std::panicking::default_hook::{{closure}}::hbc895cb9b7ebea62 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:295:22 [INFO] [stdout] 9: 0x5564b44ffc76 - std::panicking::default_hook::h664409a8548f2cc0 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:311:9 [INFO] [stdout] 10: 0x5564b45006c3 - std::panicking::rust_panic_with_hook::h947033eb042c9758 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:698:17 [INFO] [stdout] 11: 0x5564b45005b7 - std::panicking::begin_panic_handler::{{closure}}::haef8fa2237a58bae [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:588:13 [INFO] [stdout] 12: 0x5564b44feab4 - std::sys_common::backtrace::__rust_end_short_backtrace::hadb599ff5bdd6123 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stdout] 13: 0x5564b45002e2 - rust_begin_unwind [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:584:5 [INFO] [stdout] 14: 0x5564b4329283 - core::panicking::panic_fmt::hcf9e3bddea69ce9b [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/panicking.rs:142:14 [INFO] [stdout] 15: 0x5564b4329373 - core::result::unwrap_failed::h19364dd252eca818 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/result.rs:1805:5 [INFO] [stdout] 16: 0x5564b432cb32 - core::result::Result::unwrap::haef866de48a799e5 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/result.rs:1098:23 [INFO] [stdout] 17: 0x5564b433625c - rustlings::exercise::test::test_exercise_with_output::h022a53aa3933e997 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:323:19 [INFO] [stdout] 18: 0x5564b43360ea - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hcb42f70acb00dc2d [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:316:5 [INFO] [stdout] 19: 0x5564b4333f9e - core::ops::function::FnOnce::call_once::h181778eb69cf374a [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 20: 0x5564b436c1b3 - core::ops::function::FnOnce::call_once::ha891352f3b456c56 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 21: 0x5564b436c1b3 - test::__rust_begin_short_backtrace::he74ff8fcbc6e1bf3 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/test/src/lib.rs:572:5 [INFO] [stdout] 22: 0x5564b436af3c - as core::ops::function::FnOnce>::call_once::ha7d4b5f90d4ff94a [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/alloc/src/boxed.rs:1934:9 [INFO] [stdout] 23: 0x5564b436af3c - as core::ops::function::FnOnce<()>>::call_once::hff61630ec6da6d9c [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 24: 0x5564b436af3c - std::panicking::try::do_call::h25bb9ce20414cc9e [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:492:40 [INFO] [stdout] 25: 0x5564b436af3c - std::panicking::try::h879f2193a4184aae [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:456:19 [INFO] [stdout] 26: 0x5564b436af3c - std::panic::catch_unwind::hef4ed77ae7d42ef7 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panic.rs:137:14 [INFO] [stdout] 27: 0x5564b436af3c - test::run_test_in_process::h45393ffc6f2bda93 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/test/src/lib.rs:595:18 [INFO] [stdout] 28: 0x5564b436af3c - test::run_test::run_test_inner::{{closure}}::h374abe809bc519ae [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/test/src/lib.rs:489:39 [INFO] [stdout] 29: 0x5564b4336b7c - test::run_test::run_test_inner::{{closure}}::h8d8ea5cb4864a81a [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/test/src/lib.rs:516:37 [INFO] [stdout] 30: 0x5564b4336b7c - std::sys_common::backtrace::__rust_begin_short_backtrace::hae3d1543273744a4 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stdout] 31: 0x5564b433cabf - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9979fffcdc02fb98 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/thread/mod.rs:505:17 [INFO] [stdout] 32: 0x5564b433cabf - as core::ops::function::FnOnce<()>>::call_once::h43a127bea61ae81a [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 33: 0x5564b433cabf - std::panicking::try::do_call::h1dd85209b01bc737 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:492:40 [INFO] [stdout] 34: 0x5564b433cabf - std::panicking::try::h308a79a6f4b54c2d [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panicking.rs:456:19 [INFO] [stdout] 35: 0x5564b433cabf - std::panic::catch_unwind::h5cf0d96d2eddcf0c [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/panic.rs:137:14 [INFO] [stdout] 36: 0x5564b433cabf - std::thread::Builder::spawn_unchecked_::{{closure}}::hcc55c81e5bc7e1fc [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/thread/mod.rs:504:30 [INFO] [stdout] 37: 0x5564b433cabf - core::ops::function::FnOnce::call_once{{vtable.shim}}::h53c6f5ca915705b9 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 38: 0x5564b4504de3 - as core::ops::function::FnOnce>::call_once::h8644474d961275e7 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/alloc/src/boxed.rs:1934:9 [INFO] [stdout] 39: 0x5564b4504de3 - as core::ops::function::FnOnce>::call_once::hfd68b25ee06fd9db [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/alloc/src/boxed.rs:1934:9 [INFO] [stdout] 40: 0x5564b4504de3 - std::sys::unix::thread::Thread::new::thread_start::heb02daf84d178e59 [INFO] [stdout] at /rustc/6c20ab744b0f82646d90ce9d25894823abc9c669/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 41: 0x7fa69957a609 - start_thread [INFO] [stdout] 42: 0x7fa6996cf133 - clone [INFO] [stdout] 43: 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 0.07s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--bin rustlings' [INFO] running `Command { std: "docker" "inspect" "790d1eb2ccf324b465efccb0af9ffdaef1a4b2f97252e07ee00df195d8cc8d50", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "790d1eb2ccf324b465efccb0af9ffdaef1a4b2f97252e07ee00df195d8cc8d50", kill_on_drop: false }` [INFO] [stdout] 790d1eb2ccf324b465efccb0af9ffdaef1a4b2f97252e07ee00df195d8cc8d50