[INFO] cloning repository https://github.com/pace-noge/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pace-noge/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpace-noge%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpace-noge%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4da9e7ee2908b697ca76a94676fe9680248af7c9 [INFO] testing pace-noge/rustlings against master#414482f6a0d4e7290f614300581a0b55442552a3 for pr-140985 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpace-noge%2Frustlings" "/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/pace-noge/rustlings on toolchain 414482f6a0d4e7290f614300581a0b55442552a3 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/pace-noge/rustlings [INFO] finished tweaking git repo https://github.com/pace-noge/rustlings [INFO] tweaked toml for git repo https://github.com/pace-noge/rustlings written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/pace-noge/rustlings 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" "+414482f6a0d4e7290f614300581a0b55442552a3" "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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4d45e46ab87edc91d7d3532b77937563f3858e29baae7f96c23e347892549d5c [INFO] running `Command { std: "docker" "start" "-a" "4d45e46ab87edc91d7d3532b77937563f3858e29baae7f96c23e347892549d5c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4d45e46ab87edc91d7d3532b77937563f3858e29baae7f96c23e347892549d5c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4d45e46ab87edc91d7d3532b77937563f3858e29baae7f96c23e347892549d5c", kill_on_drop: false }` [INFO] [stdout] 4d45e46ab87edc91d7d3532b77937563f3858e29baae7f96c23e347892549d5c [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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4b7c8d3b2461ae51f10d9c40af9ac3c0e6b7962aaa4bab9c8aa7f475bcb11223 [INFO] running `Command { std: "docker" "start" "-a" "4b7c8d3b2461ae51f10d9c40af9ac3c0e6b7962aaa4bab9c8aa7f475bcb11223", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.93 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling syn v1.0.70 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling instant v0.1.9 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling smallvec v1.6.1 [INFO] [stderr] Compiling serde_derive v1.0.125 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling regex-syntax v0.6.23 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling lock_api v0.4.3 [INFO] [stderr] Compiling aho-corasick v0.7.15 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Compiling slab v0.4.3 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Compiling parking_lot_core v0.8.3 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling terminal_size v0.1.16 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling argh_shared v0.1.4 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling clicolors-control v1.0.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling number_prefix v0.2.8 [INFO] [stderr] Compiling termios v0.3.3 [INFO] [stderr] Compiling filetime v0.2.14 [INFO] [stderr] Compiling notify v4.0.16 [INFO] [stderr] Compiling argh_derive v0.1.4 [INFO] [stderr] Compiling regex v1.4.6 [INFO] [stderr] Compiling argh v0.1.4 [INFO] [stderr] Compiling console v0.14.1 [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 v4.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 26.63s [INFO] running `Command { std: "docker" "inspect" "4b7c8d3b2461ae51f10d9c40af9ac3c0e6b7962aaa4bab9c8aa7f475bcb11223", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4b7c8d3b2461ae51f10d9c40af9ac3c0e6b7962aaa4bab9c8aa7f475bcb11223", kill_on_drop: false }` [INFO] [stdout] 4b7c8d3b2461ae51f10d9c40af9ac3c0e6b7962aaa4bab9c8aa7f475bcb11223 [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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d8343a7f7e41cd39cf57a7e3f9f4a5066d47f2e047f84f721220bec218c95fb8 [INFO] running `Command { std: "docker" "start" "-a" "d8343a7f7e41cd39cf57a7e3f9f4a5066d47f2e047f84f721220bec218c95fb8", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling itoa v0.4.7 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling predicates v1.0.7 [INFO] [stderr] Compiling predicates-tree v1.0.2 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v4.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 7.08s [INFO] running `Command { std: "docker" "inspect" "d8343a7f7e41cd39cf57a7e3f9f4a5066d47f2e047f84f721220bec218c95fb8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d8343a7f7e41cd39cf57a7e3f9f4a5066d47f2e047f84f721220bec218c95fb8", kill_on_drop: false }` [INFO] [stdout] d8343a7f7e41cd39cf57a7e3f9f4a5066d47f2e047f84f721220bec218c95fb8 [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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 6148a92e7938f64fde646e78c1fbffe200caaaf75067ce6414753c4a0f6f1895 [INFO] running `Command { std: "docker" "start" "-a" "6148a92e7938f64fde646e78c1fbffe200caaaf75067ce6414753c4a0f6f1895", kill_on_drop: false }` [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-9ced5b7d58dce53f) [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] [INFO] [stdout] thread 'exercise::test::test_clean' panicked at src/exercise.rs:270:36: [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: 0x627547ae9232 - std::backtrace_rs::backtrace::libunwind::trace::h2a54ddf40adf8cf8 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x627547ae9232 - std::backtrace_rs::backtrace::trace_unsynchronized::h332dec2b3594a10b [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x627547ae9232 - std::sys::backtrace::_print_fmt::hcb3dee91dccac105 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x627547ae9232 - ::fmt::h2f02338d4ae6d8b0 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x627547b0dbb3 - core::fmt::rt::Argument::fmt::h8705d664b1839d6c [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x627547b0dbb3 - core::fmt::write::h5e77c22335cabc7f [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/fmt/mod.rs:1446:25 [INFO] [stdout] 6: 0x627547ae6063 - std::io::default_write_fmt::h5c16109ce8878b06 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x627547ae6063 - std::io::Write::write_fmt::h183cd11c08a12e04 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/io/mod.rs:1914:13 [INFO] [stdout] 8: 0x627547ae9082 - std::sys::backtrace::BacktraceLock::print::hb22254026b13323e [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x627547aea86c - std::panicking::default_hook::{{closure}}::h15ac4e3ee7801be5 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:300:22 [INFO] [stdout] 10: 0x627547aea6c2 - std::panicking::default_hook::h15db2a3343942a16 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x62754798b984 - as core::ops::function::Fn>::call::ha02114eecd5b8f69 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x62754798b984 - test::test_main_with_exit_callback::{{closure}}::hfb76c9b760818eb2 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x627547aeb363 - as core::ops::function::Fn>::call::h325134fa51136753 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x627547aeb363 - std::panicking::rust_panic_with_hook::h67f3fa85499b6cf9 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x627547aeb01a - std::panicking::begin_panic_handler::{{closure}}::h40a30e994b26720e [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x627547ae9739 - std::sys::backtrace::__rust_end_short_backtrace::hb5bcb2f6ea295c8b [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x627547aeacad - __rustc[bf3627c2b8b7eae9]::rust_begin_unwind [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x627547b0c620 - core::panicking::panic_fmt::h20722ae9d0312a90 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x627547b0ca86 - core::result::unwrap_failed::h3a549f59308089dd [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/result.rs:1732:5 [INFO] [stdout] 20: 0x62754794ad1c - core::result::Result::unwrap::h604c83d39e93a226 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/result.rs:1137:23 [INFO] [stdout] 21: 0x62754794ad1c - rustlings::exercise::test::test_clean::h913b65781caa97ee [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:270:9 [INFO] [stdout] 22: 0x62754794ac57 - rustlings::exercise::test::test_clean::{{closure}}::h92191314aa067139 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:20 [INFO] [stdout] 23: 0x627547948536 - core::ops::function::FnOnce::call_once::h7be2577a3ca6f60e [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x62754799113b - core::ops::function::FnOnce::call_once::h57f6f31c364c320b [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x62754799113b - test::__rust_begin_short_backtrace::h517520f4c2bfc013 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/test/src/lib.rs:648:18 [INFO] [stdout] 26: 0x627547990392 - test::run_test_in_process::{{closure}}::h0914ac5f2719bf90 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/test/src/lib.rs:671:60 [INFO] [stdout] 27: 0x627547990392 - as core::ops::function::FnOnce<()>>::call_once::h6fe627a8560ee122 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x627547990392 - std::panicking::try::do_call::h8e4a522b2d07b5d9 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x627547990392 - std::panicking::try::h254b443d279d1f8a [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x627547990392 - std::panic::catch_unwind::he39107e495b94aed [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x627547990392 - test::run_test_in_process::hb9053e7102e6de40 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/test/src/lib.rs:671:27 [INFO] [stdout] 32: 0x627547990392 - test::run_test::{{closure}}::hed53f683e9967fc9 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/test/src/lib.rs:592:43 [INFO] [stdout] 33: 0x627547953784 - test::run_test::{{closure}}::h1b1395a97621c24c [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/test/src/lib.rs:622:41 [INFO] [stdout] 34: 0x627547953784 - std::sys::backtrace::__rust_begin_short_backtrace::hd15d7342920b94e4 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x6275479571aa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hf7d3403d2a997ad4 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x6275479571aa - as core::ops::function::FnOnce<()>>::call_once::h804cb151403aed57 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x6275479571aa - std::panicking::try::do_call::h83a3328114f83651 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x6275479571aa - std::panicking::try::h5371451a86d476d0 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x6275479571aa - std::panic::catch_unwind::h2d1b89e7535ca74a [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x6275479571aa - std::thread::Builder::spawn_unchecked_::{{closure}}::h169c242c7f876b92 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x6275479571aa - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4115e0f997976371 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x627547aecc0b - as core::ops::function::FnOnce>::call_once::hbc3fa83432d7fd73 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x627547aecc0b - as core::ops::function::FnOnce>::call_once::heba5519d10f2c030 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x627547aecc0b - std::sys::pal::unix::thread::Thread::new::thread_start::h211a36f354245501 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/pal/unix/thread.rs:97:17 [INFO] [stdout] 45: 0x7958a6c7eaa4 - [INFO] [stdout] 46: 0x7958a6d0ba34 - clone [INFO] [stdout] 47: 0x0 - [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'exercise::test::test_exercise_with_output' panicked at src/exercise.rs:343:38: [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/./rmetaryOpfp\"\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: 0x627547ae9232 - std::backtrace_rs::backtrace::libunwind::trace::h2a54ddf40adf8cf8 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x627547ae9232 - std::backtrace_rs::backtrace::trace_unsynchronized::h332dec2b3594a10b [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x627547ae9232 - std::sys::backtrace::_print_fmt::hcb3dee91dccac105 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x627547ae9232 - ::fmt::h2f02338d4ae6d8b0 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x627547b0dbb3 - core::fmt::rt::Argument::fmt::h8705d664b1839d6c [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x627547b0dbb3 - core::fmt::write::h5e77c22335cabc7f [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/fmt/mod.rs:1446:25 [INFO] [stdout] 6: 0x627547ae6063 - std::io::default_write_fmt::h5c16109ce8878b06 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x627547ae6063 - std::io::Write::write_fmt::h183cd11c08a12e04 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/io/mod.rs:1914:13 [INFO] [stdout] 8: 0x627547ae9082 - std::sys::backtrace::BacktraceLock::print::hb22254026b13323e [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x627547aea86c - std::panicking::default_hook::{{closure}}::h15ac4e3ee7801be5 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:300:22 [INFO] [stdout] 10: 0x627547aea6c2 - std::panicking::default_hook::h15db2a3343942a16 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x62754798b984 - as core::ops::function::Fn>::call::ha02114eecd5b8f69 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x62754798b984 - test::test_main_with_exit_callback::{{closure}}::hfb76c9b760818eb2 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x627547aeb363 - as core::ops::function::Fn>::call::h325134fa51136753 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x627547aeb363 - std::panicking::rust_panic_with_hook::h67f3fa85499b6cf9 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x627547aeb01a - std::panicking::begin_panic_handler::{{closure}}::h40a30e994b26720e [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x627547ae9739 - std::sys::backtrace::__rust_end_short_backtrace::hb5bcb2f6ea295c8b [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x627547aeacad - __rustc[bf3627c2b8b7eae9]::rust_begin_unwind [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x627547b0c620 - core::panicking::panic_fmt::h20722ae9d0312a90 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x627547b0ca86 - core::result::unwrap_failed::h3a549f59308089dd [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/result.rs:1732:5 [INFO] [stdout] 20: 0x62754794bbb2 - core::result::Result::unwrap::h2ca0ca7d23cd5777 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/result.rs:1137:23 [INFO] [stdout] 21: 0x62754794bbb2 - rustlings::exercise::test::test_exercise_with_output::haad5e8c3f7193697 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:343:19 [INFO] [stdout] 22: 0x62754794b9b7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hd51a9ba9b94d1419 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:336:35 [INFO] [stdout] 23: 0x6275479484f6 - core::ops::function::FnOnce::call_once::h26f4a30215d2b14b [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x62754799113b - core::ops::function::FnOnce::call_once::h57f6f31c364c320b [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x62754799113b - test::__rust_begin_short_backtrace::h517520f4c2bfc013 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/test/src/lib.rs:648:18 [INFO] [stdout] 26: 0x627547990392 - test::run_test_in_process::{{closure}}::h0914ac5f2719bf90 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/test/src/lib.rs:671:60 [INFO] [stdout] 27: 0x627547990392 - as core::ops::function::FnOnce<()>>::call_once::h6fe627a8560ee122 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x627547990392 - std::panicking::try::do_call::h8e4a522b2d07b5d9 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x627547990392 - std::panicking::try::h254b443d279d1f8a [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x627547990392 - std::panic::catch_unwind::he39107e495b94aed [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x627547990392 - test::run_test_in_process::hb9053e7102e6de40 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/test/src/lib.rs:671:27 [INFO] [stdout] 32: 0x627547990392 - test::run_test::{{closure}}::hed53f683e9967fc9 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/test/src/lib.rs:592:43 [INFO] [stdout] 33: 0x627547953784 - test::run_test::{{closure}}::h1b1395a97621c24c [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/test/src/lib.rs:622:41 [INFO] [stdout] 34: 0x627547953784 - std::sys::backtrace::__rust_begin_short_backtrace::hd15d7342920b94e4 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x6275479571aa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hf7d3403d2a997ad4 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x6275479571aa - as core::ops::function::FnOnce<()>>::call_once::h804cb151403aed57 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x6275479571aa - std::panicking::try::do_call::h83a3328114f83651 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x6275479571aa - std::panicking::try::h5371451a86d476d0 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x6275479571aa - std::panic::catch_unwind::h2d1b89e7535ca74a [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x6275479571aa - std::thread::Builder::spawn_unchecked_::{{closure}}::h169c242c7f876b92 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x6275479571aa - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4115e0f997976371 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x627547aecc0b - as core::ops::function::FnOnce>::call_once::hbc3fa83432d7fd73 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x627547aecc0b - as core::ops::function::FnOnce>::call_once::heba5519d10f2c030 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x627547aecc0b - std::sys::pal::unix::thread::Thread::new::thread_start::h211a36f354245501 [INFO] [stdout] at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/pal/unix/thread.rs:97:17 [INFO] [stdout] 45: 0x7958a6c7eaa4 - [INFO] [stdout] 46: 0x7958a6d0ba34 - clone [INFO] [stdout] 47: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] exercise::test::test_clean [INFO] [stdout] exercise::test::test_exercise_with_output [INFO] [stdout] [INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.13s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "6148a92e7938f64fde646e78c1fbffe200caaaf75067ce6414753c4a0f6f1895", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6148a92e7938f64fde646e78c1fbffe200caaaf75067ce6414753c4a0f6f1895", kill_on_drop: false }` [INFO] [stdout] 6148a92e7938f64fde646e78c1fbffe200caaaf75067ce6414753c4a0f6f1895