[INFO] cloning repository https://github.com/wiselucky/rustlings-answer [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wiselucky/rustlings-answer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwiselucky%2Frustlings-answer", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwiselucky%2Frustlings-answer'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] af3e5a376c0bdda0766c2ed8ad93e2f4e7034c8e [INFO] testing wiselucky/rustlings-answer against try#1b74e096b9bfb06f84a3007193dcd2f059cbdf6a for pr-96025 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwiselucky%2Frustlings-answer" "/workspace/builds/worker-112/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-112/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wiselucky/rustlings-answer on toolchain 1b74e096b9bfb06f84a3007193dcd2f059cbdf6a [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/wiselucky/rustlings-answer [INFO] finished tweaking git repo https://github.com/wiselucky/rustlings-answer [INFO] tweaked toml for git repo https://github.com/wiselucky/rustlings-answer written to /workspace/builds/worker-112/source/Cargo.toml [INFO] crate git repo https://github.com/wiselucky/rustlings-answer already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] be1b661dc9403389bb48016773c537c3772bd95a01037c2fc5f88c776c46fc9e [INFO] running `Command { std: "docker" "start" "-a" "be1b661dc9403389bb48016773c537c3772bd95a01037c2fc5f88c776c46fc9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "be1b661dc9403389bb48016773c537c3772bd95a01037c2fc5f88c776c46fc9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "be1b661dc9403389bb48016773c537c3772bd95a01037c2fc5f88c776c46fc9e", kill_on_drop: false }` [INFO] [stdout] be1b661dc9403389bb48016773c537c3772bd95a01037c2fc5f88c776c46fc9e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0c215fb4a1c5155937f89f4704368cb54bf2a17648bfcaee92098da83b25e5a7 [INFO] running `Command { std: "docker" "start" "-a" "0c215fb4a1c5155937f89f4704368cb54bf2a17648bfcaee92098da83b25e5a7", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling smallvec v1.6.1 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling instant v0.1.10 [INFO] [stderr] Compiling lock_api v0.4.4 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling parking_lot_core v0.8.3 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling clicolors-control v1.0.1 [INFO] [stderr] Compiling termios v0.3.3 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling number_prefix v0.2.8 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling console v0.14.1 [INFO] [stderr] Compiling console v0.7.7 [INFO] [stderr] Compiling indicatif v0.10.3 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v4.6.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 29.55s [INFO] running `Command { std: "docker" "inspect" "0c215fb4a1c5155937f89f4704368cb54bf2a17648bfcaee92098da83b25e5a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c215fb4a1c5155937f89f4704368cb54bf2a17648bfcaee92098da83b25e5a7", kill_on_drop: false }` [INFO] [stdout] 0c215fb4a1c5155937f89f4704368cb54bf2a17648bfcaee92098da83b25e5a7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] da6cac31e367ebd778a3114cdeaf6b32bf76c4202f4ab80ab0d01f14f5dc99e3 [INFO] running `Command { std: "docker" "start" "-a" "da6cac31e367ebd778a3114cdeaf6b32bf76c4202f4ab80ab0d01f14f5dc99e3", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling predicates-tree v1.0.3 [INFO] [stderr] Compiling predicates v1.0.8 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v4.6.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 9.20s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-93d7dd7975bb1321) [INFO] [stderr] Executable tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-9c553f6e8b723465) [INFO] running `Command { std: "docker" "inspect" "da6cac31e367ebd778a3114cdeaf6b32bf76c4202f4ab80ab0d01f14f5dc99e3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "da6cac31e367ebd778a3114cdeaf6b32bf76c4202f4ab80ab0d01f14f5dc99e3", kill_on_drop: false }` [INFO] [stdout] da6cac31e367ebd778a3114cdeaf6b32bf76c4202f4ab80ab0d01f14f5dc99e3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] a765b80433a88aea6463ab2ad7cc66836f17de25e38b8d6f73ef21894208dab0 [INFO] running `Command { std: "docker" "start" "-a" "a765b80433a88aea6463ab2ad7cc66836f17de25e38b8d6f73ef21894208dab0", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.25s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-93d7dd7975bb1321) [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] [stderr] error: test failed, to rerun pass '--bin rustlings' [INFO] [stdout] test exercise::test::test_exercise_with_output ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_clean stdout ---- [INFO] [stdout] thread 'exercise::test::test_clean' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }', src/exercise.rs:270:36 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x56451477016d - std::backtrace_rs::backtrace::libunwind::trace::hf368f6ec047d835e [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x56451477016d - std::backtrace_rs::backtrace::trace_unsynchronized::h5deaa62eab82df22 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x56451477016d - std::sys_common::backtrace::_print_fmt::h5a1c3a24a936a045 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stdout] 3: 0x56451477016d - ::fmt::h0219f75f359b565d [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stdout] 4: 0x564514793b7c - core::fmt::write::hf0ed2ae6b5ba2d7d [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/fmt/mod.rs:1194:17 [INFO] [stdout] 5: 0x56451476c6a1 - std::io::Write::write_fmt::h38d43b38044a5699 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/io/mod.rs:1655:15 [INFO] [stdout] 6: 0x564514771c45 - std::sys_common::backtrace::_print::h733b600962ba33ce [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stdout] 7: 0x564514771c45 - std::sys_common::backtrace::print::h5dc0fa0616f7d4bf [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stdout] 8: 0x564514771c45 - std::panicking::default_hook::{{closure}}::h3151cab60fd16f06 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:295:22 [INFO] [stdout] 9: 0x5645147718f0 - std::panicking::default_hook::ha44b338b782f641e [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:311:9 [INFO] [stdout] 10: 0x564514772328 - std::panicking::rust_panic_with_hook::hddbb61d11ae83bc7 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:698:17 [INFO] [stdout] 11: 0x5645147721d7 - std::panicking::begin_panic_handler::{{closure}}::ha90ba42a51d96fb7 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:588:13 [INFO] [stdout] 12: 0x564514770624 - std::sys_common::backtrace::__rust_end_short_backtrace::hb2f712e9f2c19288 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stdout] 13: 0x564514771f09 - rust_begin_unwind [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:584:5 [INFO] [stdout] 14: 0x564514792573 - core::panicking::panic_fmt::ha7e9b4e73b08c9d5 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/panicking.rs:142:14 [INFO] [stdout] 15: 0x564514792823 - core::result::unwrap_failed::hddfa661a0339e8e8 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/result.rs:1785:5 [INFO] [stdout] 16: 0x564514576e60 - core::result::Result::unwrap::h2ae5ae6bb875a5e3 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/result.rs:1078:23 [INFO] [stdout] 17: 0x56451457acf9 - rustlings::exercise::test::test_clean::hb4a6283cc72c3576 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:270:9 [INFO] [stdout] 18: 0x56451457ac8a - rustlings::exercise::test::test_clean::{{closure}}::h88cbd3f608cfcc8a [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:5 [INFO] [stdout] 19: 0x5645145789fe - core::ops::function::FnOnce::call_once::h5c5b144986510430 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 20: 0x5645145b5733 - core::ops::function::FnOnce::call_once::h0dfe20f12b77bab0 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 21: 0x5645145b5733 - test::__rust_begin_short_backtrace::h621e75342c56b813 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/test/src/lib.rs:573:5 [INFO] [stdout] 22: 0x5645145b44da - as core::ops::function::FnOnce>::call_once::ha960722220d3e4e3 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/alloc/src/boxed.rs:1866:9 [INFO] [stdout] 23: 0x5645145b44da - as core::ops::function::FnOnce<()>>::call_once::h8d4f52e2b0282cfb [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 24: 0x5645145b44da - std::panicking::try::do_call::h482ae3b09291596d [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:492:40 [INFO] [stdout] 25: 0x5645145b44da - std::panicking::try::h2ddddb26c086954d [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:456:19 [INFO] [stdout] 26: 0x5645145b44da - std::panic::catch_unwind::h743b0e27e7a9c139 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panic.rs:137:14 [INFO] [stdout] 27: 0x5645145b44da - test::run_test_in_process::ha7740d79e504cc37 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/test/src/lib.rs:596:18 [INFO] [stdout] 28: 0x5645145b44da - test::run_test::run_test_inner::{{closure}}::h8418baf60f7a06c4 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/test/src/lib.rs:490:39 [INFO] [stdout] 29: 0x56451457ec8d - test::run_test::run_test_inner::{{closure}}::h0beb35daaa80ec66 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/test/src/lib.rs:517:37 [INFO] [stdout] 30: 0x56451457ec8d - std::sys_common::backtrace::__rust_begin_short_backtrace::hb005f1ebb9b3ac0b [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stdout] 31: 0x564514584788 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h496c50f972d6dc0f [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/thread/mod.rs:498:17 [INFO] [stdout] 32: 0x564514584788 - as core::ops::function::FnOnce<()>>::call_once::ha5b8911111f511ea [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 33: 0x564514584788 - std::panicking::try::do_call::h084ed94d88677037 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:492:40 [INFO] [stdout] 34: 0x564514584788 - std::panicking::try::h013a823fb6061e50 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:456:19 [INFO] [stdout] 35: 0x564514584788 - std::panic::catch_unwind::h041e5fbe96cdc85b [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panic.rs:137:14 [INFO] [stdout] 36: 0x564514584788 - std::thread::Builder::spawn_unchecked_::{{closure}}::h24aad6f3231b4f43 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/thread/mod.rs:497:30 [INFO] [stdout] 37: 0x564514584788 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88f4642fdc208aab [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 38: 0x564514776eb3 - as core::ops::function::FnOnce>::call_once::h21f4f903d484bbf8 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/alloc/src/boxed.rs:1866:9 [INFO] [stdout] 39: 0x564514776eb3 - as core::ops::function::FnOnce>::call_once::h88143291d50223e5 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/alloc/src/boxed.rs:1866:9 [INFO] [stdout] 40: 0x564514776eb3 - std::sys::unix::thread::Thread::new::thread_start::h21cad75f6abb068a [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 41: 0x7f4937d21609 - start_thread [INFO] [stdout] 42: 0x7f4937e76163 - clone [INFO] [stdout] 43: 0x0 - [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ---- [INFO] [stdout] thread 'exercise::test::test_exercise_with_output' panicked at 'called `Result::unwrap()` on an `Err` value: ExerciseOutput { stdout: "", stderr: "\u{1b}[0m\u{1b}[1m\u{1b}[38;5;9merror\u{1b}[0m\u{1b}[0m\u{1b}[1m: could not write output to ./temp_9_ThreadId3.10e3qkot5ua5pp6l.rcgu.o: Read-only file system\u{1b}[0m\n\n\u{1b}[0m\u{1b}[1m\u{1b}[38;5;9merror\u{1b}[0m\u{1b}[0m\u{1b}[1m: aborting due to previous error\u{1b}[0m\n\n" }', src/exercise.rs:343:38 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x56451477016d - std::backtrace_rs::backtrace::libunwind::trace::hf368f6ec047d835e [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x56451477016d - std::backtrace_rs::backtrace::trace_unsynchronized::h5deaa62eab82df22 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x56451477016d - std::sys_common::backtrace::_print_fmt::h5a1c3a24a936a045 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stdout] 3: 0x56451477016d - ::fmt::h0219f75f359b565d [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stdout] 4: 0x564514793b7c - core::fmt::write::hf0ed2ae6b5ba2d7d [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/fmt/mod.rs:1194:17 [INFO] [stdout] 5: 0x56451476c6a1 - std::io::Write::write_fmt::h38d43b38044a5699 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/io/mod.rs:1655:15 [INFO] [stdout] 6: 0x564514771c45 - std::sys_common::backtrace::_print::h733b600962ba33ce [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stdout] 7: 0x564514771c45 - std::sys_common::backtrace::print::h5dc0fa0616f7d4bf [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stdout] 8: 0x564514771c45 - std::panicking::default_hook::{{closure}}::h3151cab60fd16f06 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:295:22 [INFO] [stdout] 9: 0x5645147718f0 - std::panicking::default_hook::ha44b338b782f641e [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:311:9 [INFO] [stdout] 10: 0x564514772328 - std::panicking::rust_panic_with_hook::hddbb61d11ae83bc7 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:698:17 [INFO] [stdout] 11: 0x5645147721d7 - std::panicking::begin_panic_handler::{{closure}}::ha90ba42a51d96fb7 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:588:13 [INFO] [stdout] 12: 0x564514770624 - std::sys_common::backtrace::__rust_end_short_backtrace::hb2f712e9f2c19288 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stdout] 13: 0x564514771f09 - rust_begin_unwind [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:584:5 [INFO] [stdout] 14: 0x564514792573 - core::panicking::panic_fmt::ha7e9b4e73b08c9d5 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/panicking.rs:142:14 [INFO] [stdout] 15: 0x564514792823 - core::result::unwrap_failed::hddfa661a0339e8e8 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/result.rs:1785:5 [INFO] [stdout] 16: 0x564514576fe2 - core::result::Result::unwrap::haff82b87109e5b79 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/result.rs:1078:23 [INFO] [stdout] 17: 0x56451457b95c - rustlings::exercise::test::test_exercise_with_output::ha0a921de2e3f012f [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:343:19 [INFO] [stdout] 18: 0x56451457b7ea - rustlings::exercise::test::test_exercise_with_output::{{closure}}::ha63d095520aab74c [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:336:5 [INFO] [stdout] 19: 0x564514578afe - core::ops::function::FnOnce::call_once::hc4e3d6ed2989c47e [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 20: 0x5645145b5733 - core::ops::function::FnOnce::call_once::h0dfe20f12b77bab0 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 21: 0x5645145b5733 - test::__rust_begin_short_backtrace::h621e75342c56b813 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/test/src/lib.rs:573:5 [INFO] [stdout] 22: 0x5645145b44da - as core::ops::function::FnOnce>::call_once::ha960722220d3e4e3 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/alloc/src/boxed.rs:1866:9 [INFO] [stdout] 23: 0x5645145b44da - as core::ops::function::FnOnce<()>>::call_once::h8d4f52e2b0282cfb [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 24: 0x5645145b44da - std::panicking::try::do_call::h482ae3b09291596d [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:492:40 [INFO] [stdout] 25: 0x5645145b44da - std::panicking::try::h2ddddb26c086954d [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:456:19 [INFO] [stdout] 26: 0x5645145b44da - std::panic::catch_unwind::h743b0e27e7a9c139 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panic.rs:137:14 [INFO] [stdout] 27: 0x5645145b44da - test::run_test_in_process::ha7740d79e504cc37 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/test/src/lib.rs:596:18 [INFO] [stdout] 28: 0x5645145b44da - test::run_test::run_test_inner::{{closure}}::h8418baf60f7a06c4 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/test/src/lib.rs:490:39 [INFO] [stdout] 29: 0x56451457ec8d - test::run_test::run_test_inner::{{closure}}::h0beb35daaa80ec66 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/test/src/lib.rs:517:37 [INFO] [stdout] 30: 0x56451457ec8d - std::sys_common::backtrace::__rust_begin_short_backtrace::hb005f1ebb9b3ac0b [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stdout] 31: 0x564514584788 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h496c50f972d6dc0f [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/thread/mod.rs:498:17 [INFO] [stdout] 32: 0x564514584788 - as core::ops::function::FnOnce<()>>::call_once::ha5b8911111f511ea [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 33: 0x564514584788 - std::panicking::try::do_call::h084ed94d88677037 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:492:40 [INFO] [stdout] 34: 0x564514584788 - std::panicking::try::h013a823fb6061e50 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panicking.rs:456:19 [INFO] [stdout] 35: 0x564514584788 - std::panic::catch_unwind::h041e5fbe96cdc85b [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/panic.rs:137:14 [INFO] [stdout] 36: 0x564514584788 - std::thread::Builder::spawn_unchecked_::{{closure}}::h24aad6f3231b4f43 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/thread/mod.rs:497:30 [INFO] [stdout] 37: 0x564514584788 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88f4642fdc208aab [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 38: 0x564514776eb3 - as core::ops::function::FnOnce>::call_once::h21f4f903d484bbf8 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/alloc/src/boxed.rs:1866:9 [INFO] [stdout] 39: 0x564514776eb3 - as core::ops::function::FnOnce>::call_once::h88143291d50223e5 [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/alloc/src/boxed.rs:1866:9 [INFO] [stdout] 40: 0x564514776eb3 - std::sys::unix::thread::Thread::new::thread_start::h21cad75f6abb068a [INFO] [stdout] at /rustc/1b74e096b9bfb06f84a3007193dcd2f059cbdf6a/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 41: 0x7f4937d21609 - start_thread [INFO] [stdout] 42: 0x7f4937e76163 - clone [INFO] [stdout] 43: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] exercise::test::test_clean [INFO] [stdout] exercise::test::test_exercise_with_output [INFO] [stdout] [INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "a765b80433a88aea6463ab2ad7cc66836f17de25e38b8d6f73ef21894208dab0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a765b80433a88aea6463ab2ad7cc66836f17de25e38b8d6f73ef21894208dab0", kill_on_drop: false }` [INFO] [stdout] a765b80433a88aea6463ab2ad7cc66836f17de25e38b8d6f73ef21894208dab0