[INFO] cloning repository https://github.com/jacobsee/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/jacobsee/rustlings-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobsee%2Frustlings-solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobsee%2Frustlings-solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1134400d1dd540b5c0abb0650b912895fc2b8bb7 [INFO] testing jacobsee/rustlings-solutions against master#1ddedbaa5919b7b3e70d984660e21e844c615c97 for pr-128400 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobsee%2Frustlings-solutions" "/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/jacobsee/rustlings-solutions on toolchain 1ddedbaa5919b7b3e70d984660e21e844c615c97 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jacobsee/rustlings-solutions [INFO] finished tweaking git repo https://github.com/jacobsee/rustlings-solutions [INFO] tweaked toml for git repo https://github.com/jacobsee/rustlings-solutions written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/jacobsee/rustlings-solutions 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" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e753accf768352eb1bc295c634e9512bf8c4bf6f6fca8530fbd03f7771f2f905 [INFO] running `Command { std: "docker" "start" "-a" "e753accf768352eb1bc295c634e9512bf8c4bf6f6fca8530fbd03f7771f2f905", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e753accf768352eb1bc295c634e9512bf8c4bf6f6fca8530fbd03f7771f2f905", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e753accf768352eb1bc295c634e9512bf8c4bf6f6fca8530fbd03f7771f2f905", kill_on_drop: false }` [INFO] [stdout] e753accf768352eb1bc295c634e9512bf8c4bf6f6fca8530fbd03f7771f2f905 [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=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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2a1e4c48335f7f2227f2f6d9582e9a15682d4f1c7062ce58981a423113dc0a0b [INFO] running `Command { std: "docker" "start" "-a" "2a1e4c48335f7f2227f2f6d9582e9a15682d4f1c7062ce58981a423113dc0a0b", 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 cfg-if v0.1.9 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling unicode-width v0.1.5 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Compiling ucd-util v0.1.3 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling smallvec v0.6.9 [INFO] [stderr] Compiling utf8-ranges v1.0.2 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling lock_api v0.2.0 [INFO] [stderr] Compiling serde v1.0.92 [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling regex-syntax v0.6.6 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling same-file v1.0.4 [INFO] [stderr] Compiling lazycell v1.2.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling walkdir v2.2.7 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling aho-corasick v0.7.3 [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 iovec v0.1.2 [INFO] [stderr] Compiling clicolors-control v1.0.0 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling termios v0.3.1 [INFO] [stderr] Compiling inotify-sys v0.1.3 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling filetime v0.2.5 [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 serde_derive v1.0.92 [INFO] [stderr] Compiling console v0.8.0 [INFO] [stderr] Compiling console v0.7.7 [INFO] [stderr] Compiling indicatif v0.10.3 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v4.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.66s [INFO] running `Command { std: "docker" "inspect" "2a1e4c48335f7f2227f2f6d9582e9a15682d4f1c7062ce58981a423113dc0a0b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2a1e4c48335f7f2227f2f6d9582e9a15682d4f1c7062ce58981a423113dc0a0b", kill_on_drop: false }` [INFO] [stdout] 2a1e4c48335f7f2227f2f6d9582e9a15682d4f1c7062ce58981a423113dc0a0b [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=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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 037eb89d8e0d3149dcc722eb111084be7b9c81cf1544a77d6c6cf16ae0c5ac92 [INFO] running `Command { std: "docker" "start" "-a" "037eb89d8e0d3149dcc722eb111084be7b9c81cf1544a77d6c6cf16ae0c5ac92", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v0.2.8 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling itoa v0.4.4 [INFO] [stderr] Compiling predicates-core v1.0.0 [INFO] [stderr] Compiling float-cmp v0.4.0 [INFO] [stderr] Compiling normalize-line-endings v0.2.2 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling glob v0.3.0 [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` profile [unoptimized + debuginfo] target(s) in 1.69s [INFO] running `Command { std: "docker" "inspect" "037eb89d8e0d3149dcc722eb111084be7b9c81cf1544a77d6c6cf16ae0c5ac92", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "037eb89d8e0d3149dcc722eb111084be7b9c81cf1544a77d6c6cf16ae0c5ac92", kill_on_drop: false }` [INFO] [stdout] 037eb89d8e0d3149dcc722eb111084be7b9c81cf1544a77d6c6cf16ae0c5ac92 [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=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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1ddedbaa5919b7b3e70d984660e21e844c615c97" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 51e50429e1df52187308939ebd30c9d1de785d79db1497997fec2abaca599948 [INFO] running `Command { std: "docker" "start" "-a" "51e50429e1df52187308939ebd30c9d1de785d79db1497997fec2abaca599948", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-5f9a7df092391491) [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:249:36: [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: 0x56049060be45 - std::backtrace_rs::backtrace::libunwind::trace::hdfc9607bf31dbc86 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x56049060be45 - std::backtrace_rs::backtrace::trace_unsynchronized::h835e0ca3083fcb54 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x56049060be45 - std::sys::backtrace::_print_fmt::hf81d1bed8dde1f05 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x56049060be45 - ::fmt::h0e21387e4dc195e8 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5604906333eb - core::fmt::rt::Argument::fmt::hf0a2360aea19729b [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x5604906333eb - core::fmt::write::h76a391ed15942408 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/fmt/mod.rs:1178:21 [INFO] [stdout] 6: 0x56049060913f - std::io::Write::write_fmt::h3a6701c05eae4e21 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/io/mod.rs:1823:15 [INFO] [stdout] 7: 0x56049060d661 - std::sys::backtrace::BacktraceLock::print::hfbac027926ddf935 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x56049060d661 - std::panicking::default_hook::{{closure}}::h901010a60b64ccc3 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:266:22 [INFO] [stdout] 9: 0x56049060d208 - std::panicking::default_hook::had7425277af071c7 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:290:9 [INFO] [stdout] 10: 0x5604904a47fa - as core::ops::function::Fn>::call::h0e74b18ddebb72fa [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 11: 0x5604904a47fa - test::test_main::{{closure}}::he27b357a2172d646 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:132:21 [INFO] [stdout] 12: 0x56049060df6f - as core::ops::function::Fn>::call::ha2e26086c015e62d [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 13: 0x56049060df6f - std::panicking::rust_panic_with_hook::hac0e92610e1e4d1b [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:805:13 [INFO] [stdout] 14: 0x56049060db97 - std::panicking::begin_panic_handler::{{closure}}::h1fb6563ca25c0091 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:671:13 [INFO] [stdout] 15: 0x56049060c309 - std::sys::backtrace::__rust_end_short_backtrace::he90d714ee124ec57 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x56049060d824 - rust_begin_unwind [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:662:5 [INFO] [stdout] 17: 0x560490631d23 - core::panicking::panic_fmt::h2c076b2ed9eeb82c [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/panicking.rs:74:14 [INFO] [stdout] 18: 0x560490632236 - core::result::unwrap_failed::h0be6dd1a77884bef [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/result.rs:1679:5 [INFO] [stdout] 19: 0x5604904685aa - core::result::Result::unwrap::h12f7da80216d30d4 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/result.rs:1102:23 [INFO] [stdout] 20: 0x5604904685aa - rustlings::exercise::test::test_clean::h7be2d7290b27dfe8 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:249:9 [INFO] [stdout] 21: 0x5604904684e7 - rustlings::exercise::test::test_clean::{{closure}}::h00604c11eef920d3 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:248:20 [INFO] [stdout] 22: 0x56049046a786 - core::ops::function::FnOnce::call_once::hfd08e72c9bf0b231 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x5604904a92cb - core::ops::function::FnOnce::call_once::hca6bde12b6a630f1 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5604904a92cb - test::__rust_begin_short_backtrace::h12810d14a702ebbc [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:620:18 [INFO] [stdout] 25: 0x5604904a8b95 - test::run_test_in_process::{{closure}}::h59541574124f7772 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:643:60 [INFO] [stdout] 26: 0x5604904a8b95 - as core::ops::function::FnOnce<()>>::call_once::h21b81f6278222813 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x5604904a8b95 - std::panicking::try::do_call::h95caa0508e76e60a [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:554:40 [INFO] [stdout] 28: 0x5604904a8b95 - std::panicking::try::ha936e1facd3a2c2c [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:518:19 [INFO] [stdout] 29: 0x5604904a8b95 - std::panic::catch_unwind::h5528768c35d92b58 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panic.rs:345:14 [INFO] [stdout] 30: 0x5604904a8b95 - test::run_test_in_process::h90d0fae4cc0656ab [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:643:27 [INFO] [stdout] 31: 0x5604904a8b95 - test::run_test::{{closure}}::hd832ed1086168438 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:564:43 [INFO] [stdout] 32: 0x56049046e464 - test::run_test::{{closure}}::h9fadb9f2ff3418ff [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:594:41 [INFO] [stdout] 33: 0x56049046e464 - std::sys::backtrace::__rust_begin_short_backtrace::h83762f6f2409a243 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x560490471c32 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h30150ce916fdd544 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/thread/mod.rs:524:17 [INFO] [stdout] 35: 0x560490471c32 - as core::ops::function::FnOnce<()>>::call_once::hc325bc97006a5368 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x560490471c32 - std::panicking::try::do_call::h3c463856408c67a4 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:554:40 [INFO] [stdout] 37: 0x560490471c32 - std::panicking::try::h692f72559df6d3bf [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:518:19 [INFO] [stdout] 38: 0x560490471c32 - std::panic::catch_unwind::h1dcc0ad4c36d774e [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panic.rs:345:14 [INFO] [stdout] 39: 0x560490471c32 - std::thread::Builder::spawn_unchecked_::{{closure}}::hc95846b45d8ce7ce [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/thread/mod.rs:523:30 [INFO] [stdout] 40: 0x560490471c32 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h802463e6db21440a [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x5604906123ab - as core::ops::function::FnOnce>::call_once::h186f3f12fe64acb3 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 42: 0x5604906123ab - as core::ops::function::FnOnce>::call_once::h58b0e3febdb462cc [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 43: 0x5604906123ab - std::sys::pal::unix::thread::Thread::new::thread_start::h146ca4d6d16f256f [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x7f33f4e81ac3 - [INFO] [stdout] 45: 0x7f33f4f12a04 - 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:322:38: [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/./rmetaxpfBgn\"\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: 0x56049060be45 - std::backtrace_rs::backtrace::libunwind::trace::hdfc9607bf31dbc86 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x56049060be45 - std::backtrace_rs::backtrace::trace_unsynchronized::h835e0ca3083fcb54 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x56049060be45 - std::sys::backtrace::_print_fmt::hf81d1bed8dde1f05 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x56049060be45 - ::fmt::h0e21387e4dc195e8 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5604906333eb - core::fmt::rt::Argument::fmt::hf0a2360aea19729b [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x5604906333eb - core::fmt::write::h76a391ed15942408 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/fmt/mod.rs:1178:21 [INFO] [stdout] 6: 0x56049060913f - std::io::Write::write_fmt::h3a6701c05eae4e21 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/io/mod.rs:1823:15 [INFO] [stdout] 7: 0x56049060d661 - std::sys::backtrace::BacktraceLock::print::hfbac027926ddf935 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x56049060d661 - std::panicking::default_hook::{{closure}}::h901010a60b64ccc3 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:266:22 [INFO] [stdout] 9: 0x56049060d208 - std::panicking::default_hook::had7425277af071c7 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:290:9 [INFO] [stdout] 10: 0x5604904a47fa - as core::ops::function::Fn>::call::h0e74b18ddebb72fa [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 11: 0x5604904a47fa - test::test_main::{{closure}}::he27b357a2172d646 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:132:21 [INFO] [stdout] 12: 0x56049060df6f - as core::ops::function::Fn>::call::ha2e26086c015e62d [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 13: 0x56049060df6f - std::panicking::rust_panic_with_hook::hac0e92610e1e4d1b [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:805:13 [INFO] [stdout] 14: 0x56049060db97 - std::panicking::begin_panic_handler::{{closure}}::h1fb6563ca25c0091 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:671:13 [INFO] [stdout] 15: 0x56049060c309 - std::sys::backtrace::__rust_end_short_backtrace::he90d714ee124ec57 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x56049060d824 - rust_begin_unwind [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:662:5 [INFO] [stdout] 17: 0x560490631d23 - core::panicking::panic_fmt::h2c076b2ed9eeb82c [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/panicking.rs:74:14 [INFO] [stdout] 18: 0x560490632236 - core::result::unwrap_failed::h0be6dd1a77884bef [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/result.rs:1679:5 [INFO] [stdout] 19: 0x5604904693f6 - core::result::Result::unwrap::h2dcfaef3b8442277 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/result.rs:1102:23 [INFO] [stdout] 20: 0x5604904693f6 - rustlings::exercise::test::test_exercise_with_output::h51b5f3d3886cdc39 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:322:19 [INFO] [stdout] 21: 0x560490469207 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h38ce85f058a57d7b [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:315:35 [INFO] [stdout] 22: 0x56049046a6e6 - core::ops::function::FnOnce::call_once::h68f0554daa037d7f [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x5604904a92cb - core::ops::function::FnOnce::call_once::hca6bde12b6a630f1 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5604904a92cb - test::__rust_begin_short_backtrace::h12810d14a702ebbc [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:620:18 [INFO] [stdout] 25: 0x5604904a8b95 - test::run_test_in_process::{{closure}}::h59541574124f7772 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:643:60 [INFO] [stdout] 26: 0x5604904a8b95 - as core::ops::function::FnOnce<()>>::call_once::h21b81f6278222813 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x5604904a8b95 - std::panicking::try::do_call::h95caa0508e76e60a [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:554:40 [INFO] [stdout] 28: 0x5604904a8b95 - std::panicking::try::ha936e1facd3a2c2c [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:518:19 [INFO] [stdout] 29: 0x5604904a8b95 - std::panic::catch_unwind::h5528768c35d92b58 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panic.rs:345:14 [INFO] [stdout] 30: 0x5604904a8b95 - test::run_test_in_process::h90d0fae4cc0656ab [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:643:27 [INFO] [stdout] 31: 0x5604904a8b95 - test::run_test::{{closure}}::hd832ed1086168438 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:564:43 [INFO] [stdout] 32: 0x56049046e464 - test::run_test::{{closure}}::h9fadb9f2ff3418ff [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/test/src/lib.rs:594:41 [INFO] [stdout] 33: 0x56049046e464 - std::sys::backtrace::__rust_begin_short_backtrace::h83762f6f2409a243 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x560490471c32 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h30150ce916fdd544 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/thread/mod.rs:524:17 [INFO] [stdout] 35: 0x560490471c32 - as core::ops::function::FnOnce<()>>::call_once::hc325bc97006a5368 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x560490471c32 - std::panicking::try::do_call::h3c463856408c67a4 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:554:40 [INFO] [stdout] 37: 0x560490471c32 - std::panicking::try::h692f72559df6d3bf [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panicking.rs:518:19 [INFO] [stdout] 38: 0x560490471c32 - std::panic::catch_unwind::h1dcc0ad4c36d774e [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/panic.rs:345:14 [INFO] [stdout] 39: 0x560490471c32 - std::thread::Builder::spawn_unchecked_::{{closure}}::hc95846b45d8ce7ce [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/thread/mod.rs:523:30 [INFO] [stdout] 40: 0x560490471c32 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h802463e6db21440a [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x5604906123ab - as core::ops::function::FnOnce>::call_once::h186f3f12fe64acb3 [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 42: 0x5604906123ab - as core::ops::function::FnOnce>::call_once::h58b0e3febdb462cc [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 43: 0x5604906123ab - std::sys::pal::unix::thread::Thread::new::thread_start::h146ca4d6d16f256f [INFO] [stdout] at /rustc/1ddedbaa5919b7b3e70d984660e21e844c615c97/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x7f33f4e81ac3 - [INFO] [stdout] 45: 0x7f33f4f12a04 - 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 0.03s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "51e50429e1df52187308939ebd30c9d1de785d79db1497997fec2abaca599948", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "51e50429e1df52187308939ebd30c9d1de785d79db1497997fec2abaca599948", kill_on_drop: false }` [INFO] [stdout] 51e50429e1df52187308939ebd30c9d1de785d79db1497997fec2abaca599948