[INFO] cloning repository https://github.com/raikwa/my_rustling_solution [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/raikwa/my_rustling_solution" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraikwa%2Fmy_rustling_solution", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraikwa%2Fmy_rustling_solution'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d64949d55b28f322b97d8455af1b161672e2f107 [INFO] testing raikwa/my_rustling_solution against master#595316b4006932405a63862d8fe65f71a6356293 for pr-128254 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraikwa%2Fmy_rustling_solution" "/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/raikwa/my_rustling_solution on toolchain 595316b4006932405a63862d8fe65f71a6356293 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+595316b4006932405a63862d8fe65f71a6356293" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/raikwa/my_rustling_solution [INFO] finished tweaking git repo https://github.com/raikwa/my_rustling_solution [INFO] tweaked toml for git repo https://github.com/raikwa/my_rustling_solution written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/raikwa/my_rustling_solution 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" "+595316b4006932405a63862d8fe65f71a6356293" "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" "+595316b4006932405a63862d8fe65f71a6356293" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 12130081ef88f7ea4f44f0717f9ae5b445eedb7ef12f1e3898d92d7842c917f9 [INFO] running `Command { std: "docker" "start" "-a" "12130081ef88f7ea4f44f0717f9ae5b445eedb7ef12f1e3898d92d7842c917f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "12130081ef88f7ea4f44f0717f9ae5b445eedb7ef12f1e3898d92d7842c917f9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "12130081ef88f7ea4f44f0717f9ae5b445eedb7ef12f1e3898d92d7842c917f9", kill_on_drop: false }` [INFO] [stdout] 12130081ef88f7ea4f44f0717f9ae5b445eedb7ef12f1e3898d92d7842c917f9 [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" "+595316b4006932405a63862d8fe65f71a6356293" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 14b1fb2c9a2a04c6427f943fc10cecb2575d31232b9ed9b78e8fa1f78092cc74 [INFO] running `Command { std: "docker" "start" "-a" "14b1fb2c9a2a04c6427f943fc10cecb2575d31232b9ed9b78e8fa1f78092cc74", 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 lazy_static v1.3.0 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling unicode-width v0.1.5 [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 smallvec v0.6.9 [INFO] [stderr] Compiling utf8-ranges v1.0.2 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling regex-syntax v0.6.6 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling lock_api v0.2.0 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling serde v1.0.92 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [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 rand_xorshift v0.1.1 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling lazycell v1.2.1 [INFO] [stderr] Compiling same-file v1.0.4 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling walkdir v2.2.7 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling termios v0.3.1 [INFO] [stderr] Compiling clicolors-control v1.0.0 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Compiling aho-corasick v0.7.3 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling iovec v0.1.2 [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 quote v0.6.12 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling inotify v0.7.0 [INFO] [stderr] Compiling mio-extras v2.0.5 [INFO] [stderr] Compiling number_prefix v0.2.8 [INFO] [stderr] Compiling notify v4.0.15 [INFO] [stderr] Compiling console v0.8.0 [INFO] [stderr] Compiling console v0.7.7 [INFO] [stderr] Compiling serde_derive v1.0.92 [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 11.90s [INFO] running `Command { std: "docker" "inspect" "14b1fb2c9a2a04c6427f943fc10cecb2575d31232b9ed9b78e8fa1f78092cc74", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "14b1fb2c9a2a04c6427f943fc10cecb2575d31232b9ed9b78e8fa1f78092cc74", kill_on_drop: false }` [INFO] [stdout] 14b1fb2c9a2a04c6427f943fc10cecb2575d31232b9ed9b78e8fa1f78092cc74 [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" "+595316b4006932405a63862d8fe65f71a6356293" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9512318db852aae1ca7ea9765251494e2f2bc578ad8fcccb54b4ad6bd1d84d2d [INFO] running `Command { std: "docker" "start" "-a" "9512318db852aae1ca7ea9765251494e2f2bc578ad8fcccb54b4ad6bd1d84d2d", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v0.2.8 [INFO] [stderr] Compiling itoa v0.4.4 [INFO] [stderr] Compiling predicates-core v1.0.0 [INFO] [stderr] Compiling escargot v0.4.0 [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 3.09s [INFO] running `Command { std: "docker" "inspect" "9512318db852aae1ca7ea9765251494e2f2bc578ad8fcccb54b4ad6bd1d84d2d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9512318db852aae1ca7ea9765251494e2f2bc578ad8fcccb54b4ad6bd1d84d2d", kill_on_drop: false }` [INFO] [stdout] 9512318db852aae1ca7ea9765251494e2f2bc578ad8fcccb54b4ad6bd1d84d2d [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" "+595316b4006932405a63862d8fe65f71a6356293" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f6aa8a1c7e6446ae1217ddc55d5a84a4b06994872354822d1ce678079a8c81e8 [INFO] running `Command { std: "docker" "start" "-a" "f6aa8a1c7e6446ae1217ddc55d5a84a4b06994872354822d1ce678079a8c81e8", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s [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: 0x55ac8f4e6785 - std::backtrace_rs::backtrace::libunwind::trace::h809b51279f37fbc6 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x55ac8f4e6785 - std::backtrace_rs::backtrace::trace_unsynchronized::ha753b9a6d024bd66 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55ac8f4e6785 - std::sys::backtrace::_print_fmt::h54b8ed40836b22eb [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x55ac8f4e6785 - ::fmt::h093865098a3fff40 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x55ac8f50dd2b - core::fmt::rt::Argument::fmt::h1061e452add16254 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x55ac8f50dd2b - core::fmt::write::h7a508f96bafac160 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/fmt/mod.rs:1178:21 [INFO] [stdout] 6: 0x55ac8f4e3b2f - std::io::Write::write_fmt::h56e272cdb0cebbc6 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/io/mod.rs:1823:15 [INFO] [stdout] 7: 0x55ac8f4e7fa1 - std::sys::backtrace::BacktraceLock::print::h155d850523a1b927 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x55ac8f4e7fa1 - std::panicking::default_hook::{{closure}}::h2855f8d7d6820b00 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:266:22 [INFO] [stdout] 9: 0x55ac8f4e7b48 - std::panicking::default_hook::h449f08cb45d29c44 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:290:9 [INFO] [stdout] 10: 0x55ac8f37d42a - as core::ops::function::Fn>::call::hbb9c31241d2a8ab8 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 11: 0x55ac8f37d42a - test::test_main::{{closure}}::h3f4b24bb8992cb07 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:132:21 [INFO] [stdout] 12: 0x55ac8f4e88af - as core::ops::function::Fn>::call::h2b2f8d2c7a6688f7 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 13: 0x55ac8f4e88af - std::panicking::rust_panic_with_hook::ha7cb63f808bb331d [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:805:13 [INFO] [stdout] 14: 0x55ac8f4e84d7 - std::panicking::begin_panic_handler::{{closure}}::h8e8be5526a8e1a0d [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:671:13 [INFO] [stdout] 15: 0x55ac8f4e6c49 - std::sys::backtrace::__rust_end_short_backtrace::h2c3f320719402611 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x55ac8f4e8164 - rust_begin_unwind [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:662:5 [INFO] [stdout] 17: 0x55ac8f50c663 - core::panicking::panic_fmt::h51ab013dd3ac6147 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/panicking.rs:74:14 [INFO] [stdout] 18: 0x55ac8f50cb76 - core::result::unwrap_failed::h1dca30479410c97d [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/result.rs:1679:5 [INFO] [stdout] 19: 0x55ac8f34123a - core::result::Result::unwrap::h52a3bdc938e50597 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/result.rs:1102:23 [INFO] [stdout] 20: 0x55ac8f34123a - rustlings::exercise::test::test_clean::h3b5cd052d4e2ad7e [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:249:9 [INFO] [stdout] 21: 0x55ac8f341177 - rustlings::exercise::test::test_clean::{{closure}}::ha7e2e1c5a6a3f1eb [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:248:20 [INFO] [stdout] 22: 0x55ac8f3432b6 - core::ops::function::FnOnce::call_once::he9b0326188715d27 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x55ac8f381fab - core::ops::function::FnOnce::call_once::h2ec63b219a477cdc [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x55ac8f381fab - test::__rust_begin_short_backtrace::h9851766a24f0f2dc [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:620:18 [INFO] [stdout] 25: 0x55ac8f3817c5 - test::run_test_in_process::{{closure}}::h5f576be7f01e61a0 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:643:60 [INFO] [stdout] 26: 0x55ac8f3817c5 - as core::ops::function::FnOnce<()>>::call_once::hbcd518b2646978df [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x55ac8f3817c5 - std::panicking::try::do_call::hef1c8e3807c09d72 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:554:40 [INFO] [stdout] 28: 0x55ac8f3817c5 - std::panicking::try::hef7ba31069ef6faa [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:518:19 [INFO] [stdout] 29: 0x55ac8f3817c5 - std::panic::catch_unwind::h02d1a6a53b815216 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panic.rs:345:14 [INFO] [stdout] 30: 0x55ac8f3817c5 - test::run_test_in_process::h725821eeeaa8d44f [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:643:27 [INFO] [stdout] 31: 0x55ac8f3817c5 - test::run_test::{{closure}}::hf3052154731afb9c [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:564:43 [INFO] [stdout] 32: 0x55ac8f347094 - test::run_test::{{closure}}::h0f3481c98fe7f586 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:594:41 [INFO] [stdout] 33: 0x55ac8f347094 - std::sys::backtrace::__rust_begin_short_backtrace::hd77fe506835ba5a7 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x55ac8f34a862 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::had0acb5abbe1cd58 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/thread/mod.rs:524:17 [INFO] [stdout] 35: 0x55ac8f34a862 - as core::ops::function::FnOnce<()>>::call_once::h7aa25fb6322ead52 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x55ac8f34a862 - std::panicking::try::do_call::h430d18a4f38cd14a [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:554:40 [INFO] [stdout] 37: 0x55ac8f34a862 - std::panicking::try::hce26f6fe7fc6d3f9 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:518:19 [INFO] [stdout] 38: 0x55ac8f34a862 - std::panic::catch_unwind::h1ed0f8ea5cd7c366 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panic.rs:345:14 [INFO] [stdout] 39: 0x55ac8f34a862 - std::thread::Builder::spawn_unchecked_::{{closure}}::h5dd5df43207207a2 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/thread/mod.rs:523:30 [INFO] [stdout] 40: 0x55ac8f34a862 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h77019e733916ab5c [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x55ac8f4ecceb - as core::ops::function::FnOnce>::call_once::hf63e8c20eb49467b [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 42: 0x55ac8f4ecceb - as core::ops::function::FnOnce>::call_once::hfdf67ecf6685e277 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 43: 0x55ac8f4ecceb - std::sys::pal::unix::thread::Thread::new::thread_start::h96d3264ae41c3765 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x7faf7f631ac3 - [INFO] [stdout] 45: 0x7faf7f6c2a04 - 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/./rmeta0X2GEf\"\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: 0x55ac8f4e6785 - std::backtrace_rs::backtrace::libunwind::trace::h809b51279f37fbc6 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5 [INFO] [stdout] 1: 0x55ac8f4e6785 - std::backtrace_rs::backtrace::trace_unsynchronized::ha753b9a6d024bd66 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55ac8f4e6785 - std::sys::backtrace::_print_fmt::h54b8ed40836b22eb [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x55ac8f4e6785 - ::fmt::h093865098a3fff40 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x55ac8f50dd2b - core::fmt::rt::Argument::fmt::h1061e452add16254 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x55ac8f50dd2b - core::fmt::write::h7a508f96bafac160 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/fmt/mod.rs:1178:21 [INFO] [stdout] 6: 0x55ac8f4e3b2f - std::io::Write::write_fmt::h56e272cdb0cebbc6 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/io/mod.rs:1823:15 [INFO] [stdout] 7: 0x55ac8f4e7fa1 - std::sys::backtrace::BacktraceLock::print::h155d850523a1b927 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x55ac8f4e7fa1 - std::panicking::default_hook::{{closure}}::h2855f8d7d6820b00 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:266:22 [INFO] [stdout] 9: 0x55ac8f4e7b48 - std::panicking::default_hook::h449f08cb45d29c44 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:290:9 [INFO] [stdout] 10: 0x55ac8f37d42a - as core::ops::function::Fn>::call::hbb9c31241d2a8ab8 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 11: 0x55ac8f37d42a - test::test_main::{{closure}}::h3f4b24bb8992cb07 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:132:21 [INFO] [stdout] 12: 0x55ac8f4e88af - as core::ops::function::Fn>::call::h2b2f8d2c7a6688f7 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 13: 0x55ac8f4e88af - std::panicking::rust_panic_with_hook::ha7cb63f808bb331d [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:805:13 [INFO] [stdout] 14: 0x55ac8f4e84d7 - std::panicking::begin_panic_handler::{{closure}}::h8e8be5526a8e1a0d [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:671:13 [INFO] [stdout] 15: 0x55ac8f4e6c49 - std::sys::backtrace::__rust_end_short_backtrace::h2c3f320719402611 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x55ac8f4e8164 - rust_begin_unwind [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:662:5 [INFO] [stdout] 17: 0x55ac8f50c663 - core::panicking::panic_fmt::h51ab013dd3ac6147 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/panicking.rs:74:14 [INFO] [stdout] 18: 0x55ac8f50cb76 - core::result::unwrap_failed::h1dca30479410c97d [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/result.rs:1679:5 [INFO] [stdout] 19: 0x55ac8f342086 - core::result::Result::unwrap::h6b681fcb8248636f [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/result.rs:1102:23 [INFO] [stdout] 20: 0x55ac8f342086 - rustlings::exercise::test::test_exercise_with_output::hd9e1063c903610fd [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:322:19 [INFO] [stdout] 21: 0x55ac8f341e97 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hf4dc3d1cf95d30e4 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:315:35 [INFO] [stdout] 22: 0x55ac8f343256 - core::ops::function::FnOnce::call_once::h64d5e5116e2bd45c [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x55ac8f381fab - core::ops::function::FnOnce::call_once::h2ec63b219a477cdc [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x55ac8f381fab - test::__rust_begin_short_backtrace::h9851766a24f0f2dc [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:620:18 [INFO] [stdout] 25: 0x55ac8f3817c5 - test::run_test_in_process::{{closure}}::h5f576be7f01e61a0 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:643:60 [INFO] [stdout] 26: 0x55ac8f3817c5 - as core::ops::function::FnOnce<()>>::call_once::hbcd518b2646978df [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 27: 0x55ac8f3817c5 - std::panicking::try::do_call::hef1c8e3807c09d72 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:554:40 [INFO] [stdout] 28: 0x55ac8f3817c5 - std::panicking::try::hef7ba31069ef6faa [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:518:19 [INFO] [stdout] 29: 0x55ac8f3817c5 - std::panic::catch_unwind::h02d1a6a53b815216 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panic.rs:345:14 [INFO] [stdout] 30: 0x55ac8f3817c5 - test::run_test_in_process::h725821eeeaa8d44f [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:643:27 [INFO] [stdout] 31: 0x55ac8f3817c5 - test::run_test::{{closure}}::hf3052154731afb9c [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:564:43 [INFO] [stdout] 32: 0x55ac8f347094 - test::run_test::{{closure}}::h0f3481c98fe7f586 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:594:41 [INFO] [stdout] 33: 0x55ac8f347094 - std::sys::backtrace::__rust_begin_short_backtrace::hd77fe506835ba5a7 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x55ac8f34a862 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::had0acb5abbe1cd58 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/thread/mod.rs:524:17 [INFO] [stdout] 35: 0x55ac8f34a862 - as core::ops::function::FnOnce<()>>::call_once::h7aa25fb6322ead52 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 36: 0x55ac8f34a862 - std::panicking::try::do_call::h430d18a4f38cd14a [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:554:40 [INFO] [stdout] 37: 0x55ac8f34a862 - std::panicking::try::hce26f6fe7fc6d3f9 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:518:19 [INFO] [stdout] 38: 0x55ac8f34a862 - std::panic::catch_unwind::h1ed0f8ea5cd7c366 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panic.rs:345:14 [INFO] [stdout] 39: 0x55ac8f34a862 - std::thread::Builder::spawn_unchecked_::{{closure}}::h5dd5df43207207a2 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/thread/mod.rs:523:30 [INFO] [stdout] 40: 0x55ac8f34a862 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h77019e733916ab5c [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 41: 0x55ac8f4ecceb - as core::ops::function::FnOnce>::call_once::hf63e8c20eb49467b [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 42: 0x55ac8f4ecceb - as core::ops::function::FnOnce>::call_once::hfdf67ecf6685e277 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 43: 0x55ac8f4ecceb - std::sys::pal::unix::thread::Thread::new::thread_start::h96d3264ae41c3765 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/pal/unix/thread.rs:105:17 [INFO] [stdout] 44: 0x7faf7f631ac3 - [INFO] [stdout] 45: 0x7faf7f6c2a04 - 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 0.06s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "f6aa8a1c7e6446ae1217ddc55d5a84a4b06994872354822d1ce678079a8c81e8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f6aa8a1c7e6446ae1217ddc55d5a84a4b06994872354822d1ce678079a8c81e8", kill_on_drop: false }` [INFO] [stdout] f6aa8a1c7e6446ae1217ddc55d5a84a4b06994872354822d1ce678079a8c81e8