[INFO] cloning repository https://github.com/smithcli/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/smithcli/rustlings-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmithcli%2Frustlings-solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmithcli%2Frustlings-solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d97321fd89441771de0c14920a7d7e23fca4463b [INFO] testing smithcli/rustlings-solutions against master#595316b4006932405a63862d8fe65f71a6356293 for pr-128254 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsmithcli%2Frustlings-solutions" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/smithcli/rustlings-solutions 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/smithcli/rustlings-solutions [INFO] finished tweaking git repo https://github.com/smithcli/rustlings-solutions [INFO] tweaked toml for git repo https://github.com/smithcli/rustlings-solutions written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/smithcli/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" "+595316b4006932405a63862d8fe65f71a6356293" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 3c6ef02dcfb049ce49407b6ac28380571fd2da65b4ff6815f10435f52e6e5be7 [INFO] running `Command { std: "docker" "start" "-a" "3c6ef02dcfb049ce49407b6ac28380571fd2da65b4ff6815f10435f52e6e5be7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3c6ef02dcfb049ce49407b6ac28380571fd2da65b4ff6815f10435f52e6e5be7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3c6ef02dcfb049ce49407b6ac28380571fd2da65b4ff6815f10435f52e6e5be7", kill_on_drop: false }` [INFO] [stdout] 3c6ef02dcfb049ce49407b6ac28380571fd2da65b4ff6815f10435f52e6e5be7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] d785d7d36658709d8fb8932605a466fc6be78648b7bd11ea3212dee25cdc80d5 [INFO] running `Command { std: "docker" "start" "-a" "d785d7d36658709d8fb8932605a466fc6be78648b7bd11ea3212dee25cdc80d5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling itoa v1.0.2 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling home v0.5.3 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling regex v1.5.5 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling console v0.15.0 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.5.9 [INFO] [stderr] Compiling rustlings v5.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.52s [INFO] running `Command { std: "docker" "inspect" "d785d7d36658709d8fb8932605a466fc6be78648b7bd11ea3212dee25cdc80d5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d785d7d36658709d8fb8932605a466fc6be78648b7bd11ea3212dee25cdc80d5", kill_on_drop: false }` [INFO] [stdout] d785d7d36658709d8fb8932605a466fc6be78648b7bd11ea3212dee25cdc80d5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 684bab37d3901d369173eb18fc733c9474d5c71ca47157b5269d6acf53f454f7 [INFO] running `Command { std: "docker" "start" "-a" "684bab37d3901d369173eb18fc733c9474d5c71ca47157b5269d6acf53f454f7", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling predicates-tree v1.0.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling predicates v1.0.8 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v5.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.55s [INFO] running `Command { std: "docker" "inspect" "684bab37d3901d369173eb18fc733c9474d5c71ca47157b5269d6acf53f454f7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "684bab37d3901d369173eb18fc733c9474d5c71ca47157b5269d6acf53f454f7", kill_on_drop: false }` [INFO] [stdout] 684bab37d3901d369173eb18fc733c9474d5c71ca47157b5269d6acf53f454f7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 2b163fe55fdf9f195c692bf36f2694fdc3f53fe6a4d00f3fb0c17c190f1429c5 [INFO] running `Command { std: "docker" "start" "-a" "2b163fe55fdf9f195c692bf36f2694fdc3f53fe6a4d00f3fb0c17c190f1429c5", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-9127a4caa6500a40) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test exercise::test::test_finished_exercise ... ok [INFO] [stdout] test exercise::test::test_pending_state ... ok [INFO] [stdout] test exercise::test::test_clean ... FAILED [INFO] [stdout] test exercise::test::test_exercise_with_output ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_clean stdout ---- [INFO] [stdout] thread 'exercise::test::test_clean' panicked at src/exercise.rs:273:36: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5629e696c0c5 - 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: 0x5629e696c0c5 - 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: 0x5629e696c0c5 - std::sys::backtrace::_print_fmt::h54b8ed40836b22eb [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5629e696c0c5 - ::fmt::h093865098a3fff40 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5629e699356b - core::fmt::rt::Argument::fmt::h1061e452add16254 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x5629e699356b - core::fmt::write::h7a508f96bafac160 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/fmt/mod.rs:1178:21 [INFO] [stdout] 6: 0x5629e696946f - std::io::Write::write_fmt::h56e272cdb0cebbc6 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/io/mod.rs:1823:15 [INFO] [stdout] 7: 0x5629e696d8e1 - std::sys::backtrace::BacktraceLock::print::h155d850523a1b927 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x5629e696d8e1 - std::panicking::default_hook::{{closure}}::h2855f8d7d6820b00 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:266:22 [INFO] [stdout] 9: 0x5629e696d488 - std::panicking::default_hook::h449f08cb45d29c44 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:290:9 [INFO] [stdout] 10: 0x5629e67eb78a - as core::ops::function::Fn>::call::hbb9c31241d2a8ab8 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 11: 0x5629e67eb78a - test::test_main::{{closure}}::h3f4b24bb8992cb07 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:132:21 [INFO] [stdout] 12: 0x5629e696e1ef - as core::ops::function::Fn>::call::h2b2f8d2c7a6688f7 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 13: 0x5629e696e1ef - std::panicking::rust_panic_with_hook::ha7cb63f808bb331d [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:805:13 [INFO] [stdout] 14: 0x5629e696de17 - std::panicking::begin_panic_handler::{{closure}}::h8e8be5526a8e1a0d [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:671:13 [INFO] [stdout] 15: 0x5629e696c589 - std::sys::backtrace::__rust_end_short_backtrace::h2c3f320719402611 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x5629e696daa4 - rust_begin_unwind [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:662:5 [INFO] [stdout] 17: 0x5629e6991e63 - core::panicking::panic_fmt::h51ab013dd3ac6147 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/panicking.rs:74:14 [INFO] [stdout] 18: 0x5629e69923b6 - core::result::unwrap_failed::h1dca30479410c97d [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/result.rs:1679:5 [INFO] [stdout] 19: 0x5629e67a91ea - core::result::Result::unwrap::h9cd4c610d625b436 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/result.rs:1102:23 [INFO] [stdout] 20: 0x5629e67a91ea - rustlings::exercise::test::test_clean::h6197614c3a57fbfc [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:273:9 [INFO] [stdout] 21: 0x5629e67a9127 - rustlings::exercise::test::test_clean::{{closure}}::h488a18a88de72131 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:272:20 [INFO] [stdout] 22: 0x5629e67a65b6 - core::ops::function::FnOnce::call_once::h16b7a39a9ba42c13 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x5629e67f030b - core::ops::function::FnOnce::call_once::h2ec63b219a477cdc [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5629e67f030b - test::__rust_begin_short_backtrace::h9851766a24f0f2dc [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:620:18 [INFO] [stdout] 25: 0x5629e67efb25 - test::run_test_in_process::{{closure}}::h5f576be7f01e61a0 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:643:60 [INFO] [stdout] 26: 0x5629e67efb25 - 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: 0x5629e67efb25 - std::panicking::try::do_call::hef1c8e3807c09d72 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:554:40 [INFO] [stdout] 28: 0x5629e67efb25 - std::panicking::try::hef7ba31069ef6faa [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:518:19 [INFO] [stdout] 29: 0x5629e67efb25 - std::panic::catch_unwind::h02d1a6a53b815216 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panic.rs:345:14 [INFO] [stdout] 30: 0x5629e67efb25 - test::run_test_in_process::h725821eeeaa8d44f [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:643:27 [INFO] [stdout] 31: 0x5629e67efb25 - test::run_test::{{closure}}::hf3052154731afb9c [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:564:43 [INFO] [stdout] 32: 0x5629e67b53f4 - test::run_test::{{closure}}::h0f3481c98fe7f586 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:594:41 [INFO] [stdout] 33: 0x5629e67b53f4 - std::sys::backtrace::__rust_begin_short_backtrace::hd77fe506835ba5a7 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x5629e67b8bc2 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::had0acb5abbe1cd58 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/thread/mod.rs:524:17 [INFO] [stdout] 35: 0x5629e67b8bc2 - 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: 0x5629e67b8bc2 - std::panicking::try::do_call::h430d18a4f38cd14a [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:554:40 [INFO] [stdout] 37: 0x5629e67b8bc2 - std::panicking::try::hce26f6fe7fc6d3f9 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:518:19 [INFO] [stdout] 38: 0x5629e67b8bc2 - std::panic::catch_unwind::h1ed0f8ea5cd7c366 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panic.rs:345:14 [INFO] [stdout] 39: 0x5629e67b8bc2 - std::thread::Builder::spawn_unchecked_::{{closure}}::h5dd5df43207207a2 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/thread/mod.rs:523:30 [INFO] [stdout] 40: 0x5629e67b8bc2 - 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: 0x5629e697251b - as core::ops::function::FnOnce>::call_once::hf63e8c20eb49467b [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 42: 0x5629e697251b - as core::ops::function::FnOnce>::call_once::hfdf67ecf6685e277 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 43: 0x5629e697251b - 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: 0x7f91b5f70ac3 - [INFO] [stdout] 45: 0x7f91b6001a04 - 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:346:38: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: ExerciseOutput { stdout: "", stderr: "\u{1b}[0m\u{1b}[1m\u{1b}[38;5;9merror\u{1b}[0m\u{1b}[0m\u{1b}[1m: couldn't create a temp dir: Read-only file system (os error 30) at path \"/opt/rustwide/workdir/./rmetaM3lskZ\"\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: 0x5629e696c0c5 - 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: 0x5629e696c0c5 - 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: 0x5629e696c0c5 - std::sys::backtrace::_print_fmt::h54b8ed40836b22eb [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5629e696c0c5 - ::fmt::h093865098a3fff40 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5629e699356b - core::fmt::rt::Argument::fmt::h1061e452add16254 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x5629e699356b - core::fmt::write::h7a508f96bafac160 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/fmt/mod.rs:1178:21 [INFO] [stdout] 6: 0x5629e696946f - std::io::Write::write_fmt::h56e272cdb0cebbc6 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/io/mod.rs:1823:15 [INFO] [stdout] 7: 0x5629e696d8e1 - std::sys::backtrace::BacktraceLock::print::h155d850523a1b927 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 8: 0x5629e696d8e1 - std::panicking::default_hook::{{closure}}::h2855f8d7d6820b00 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:266:22 [INFO] [stdout] 9: 0x5629e696d488 - std::panicking::default_hook::h449f08cb45d29c44 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:290:9 [INFO] [stdout] 10: 0x5629e67eb78a - as core::ops::function::Fn>::call::hbb9c31241d2a8ab8 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 11: 0x5629e67eb78a - test::test_main::{{closure}}::h3f4b24bb8992cb07 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:132:21 [INFO] [stdout] 12: 0x5629e696e1ef - as core::ops::function::Fn>::call::h2b2f8d2c7a6688f7 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2162:9 [INFO] [stdout] 13: 0x5629e696e1ef - std::panicking::rust_panic_with_hook::ha7cb63f808bb331d [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:805:13 [INFO] [stdout] 14: 0x5629e696de17 - std::panicking::begin_panic_handler::{{closure}}::h8e8be5526a8e1a0d [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:671:13 [INFO] [stdout] 15: 0x5629e696c589 - std::sys::backtrace::__rust_end_short_backtrace::h2c3f320719402611 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:170:18 [INFO] [stdout] 16: 0x5629e696daa4 - rust_begin_unwind [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:662:5 [INFO] [stdout] 17: 0x5629e6991e63 - core::panicking::panic_fmt::h51ab013dd3ac6147 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/panicking.rs:74:14 [INFO] [stdout] 18: 0x5629e69923b6 - core::result::unwrap_failed::h1dca30479410c97d [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/result.rs:1679:5 [INFO] [stdout] 19: 0x5629e67aa04a - core::result::Result::unwrap::h1da81406f222484c [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/result.rs:1102:23 [INFO] [stdout] 20: 0x5629e67aa04a - rustlings::exercise::test::test_exercise_with_output::h7842a9ea0daf16a3 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:346:19 [INFO] [stdout] 21: 0x5629e67a9e57 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::he2da0dd8d678a7f2 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:339:35 [INFO] [stdout] 22: 0x5629e67a66e6 - core::ops::function::FnOnce::call_once::hb48718e7f0b43366 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 23: 0x5629e67f030b - core::ops::function::FnOnce::call_once::h2ec63b219a477cdc [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5629e67f030b - test::__rust_begin_short_backtrace::h9851766a24f0f2dc [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:620:18 [INFO] [stdout] 25: 0x5629e67efb25 - test::run_test_in_process::{{closure}}::h5f576be7f01e61a0 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:643:60 [INFO] [stdout] 26: 0x5629e67efb25 - 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: 0x5629e67efb25 - std::panicking::try::do_call::hef1c8e3807c09d72 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:554:40 [INFO] [stdout] 28: 0x5629e67efb25 - std::panicking::try::hef7ba31069ef6faa [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:518:19 [INFO] [stdout] 29: 0x5629e67efb25 - std::panic::catch_unwind::h02d1a6a53b815216 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panic.rs:345:14 [INFO] [stdout] 30: 0x5629e67efb25 - test::run_test_in_process::h725821eeeaa8d44f [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:643:27 [INFO] [stdout] 31: 0x5629e67efb25 - test::run_test::{{closure}}::hf3052154731afb9c [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:564:43 [INFO] [stdout] 32: 0x5629e67b53f4 - test::run_test::{{closure}}::h0f3481c98fe7f586 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/test/src/lib.rs:594:41 [INFO] [stdout] 33: 0x5629e67b53f4 - std::sys::backtrace::__rust_begin_short_backtrace::hd77fe506835ba5a7 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/sys/backtrace.rs:154:18 [INFO] [stdout] 34: 0x5629e67b8bc2 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::had0acb5abbe1cd58 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/thread/mod.rs:524:17 [INFO] [stdout] 35: 0x5629e67b8bc2 - 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: 0x5629e67b8bc2 - std::panicking::try::do_call::h430d18a4f38cd14a [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:554:40 [INFO] [stdout] 37: 0x5629e67b8bc2 - std::panicking::try::hce26f6fe7fc6d3f9 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panicking.rs:518:19 [INFO] [stdout] 38: 0x5629e67b8bc2 - std::panic::catch_unwind::h1ed0f8ea5cd7c366 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/panic.rs:345:14 [INFO] [stdout] 39: 0x5629e67b8bc2 - std::thread::Builder::spawn_unchecked_::{{closure}}::h5dd5df43207207a2 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/std/src/thread/mod.rs:523:30 [INFO] [stdout] 40: 0x5629e67b8bc2 - 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: 0x5629e697251b - as core::ops::function::FnOnce>::call_once::hf63e8c20eb49467b [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 42: 0x5629e697251b - as core::ops::function::FnOnce>::call_once::hfdf67ecf6685e277 [INFO] [stdout] at /rustc/595316b4006932405a63862d8fe65f71a6356293/library/alloc/src/boxed.rs:2148:9 [INFO] [stdout] 43: 0x5629e697251b - 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: 0x7f91b5f70ac3 - [INFO] [stdout] 45: 0x7f91b6001a04 - 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" "2b163fe55fdf9f195c692bf36f2694fdc3f53fe6a4d00f3fb0c17c190f1429c5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2b163fe55fdf9f195c692bf36f2694fdc3f53fe6a4d00f3fb0c17c190f1429c5", kill_on_drop: false }` [INFO] [stdout] 2b163fe55fdf9f195c692bf36f2694fdc3f53fe6a4d00f3fb0c17c190f1429c5