[INFO] cloning repository https://github.com/JeromeTroy/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/JeromeTroy/rustlings-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeromeTroy%2Frustlings-solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeromeTroy%2Frustlings-solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7cd635fa847d33716a735ac1673287db54b6c842 [INFO] testing JeromeTroy/rustlings-solutions against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeromeTroy%2Frustlings-solutions" "/workspace/builds/worker-4/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/JeromeTroy/rustlings-solutions on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/JeromeTroy/rustlings-solutions [INFO] finished tweaking git repo https://github.com/JeromeTroy/rustlings-solutions [INFO] tweaked toml for git repo https://github.com/JeromeTroy/rustlings-solutions written to /workspace/builds/worker-4/source/Cargo.toml [INFO] crate git repo https://github.com/JeromeTroy/rustlings-solutions already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 684d9707ee7aeffba2557a3aab45b184ca408d0edf894d52e915e770c6fdbaad [INFO] running `Command { std: "docker" "start" "-a" "684d9707ee7aeffba2557a3aab45b184ca408d0edf894d52e915e770c6fdbaad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "684d9707ee7aeffba2557a3aab45b184ca408d0edf894d52e915e770c6fdbaad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "684d9707ee7aeffba2557a3aab45b184ca408d0edf894d52e915e770c6fdbaad", kill_on_drop: false }` [INFO] [stdout] 684d9707ee7aeffba2557a3aab45b184ca408d0edf894d52e915e770c6fdbaad [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2cbec5e81e9d145d62ac8a80123d1e548e6db87f07ff122ee026924ebb3f01ec [INFO] running `Command { std: "docker" "start" "-a" "2cbec5e81e9d145d62ac8a80123d1e548e6db87f07ff122ee026924ebb3f01ec", kill_on_drop: false }` [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 bitflags v1.2.1 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling serde_derive v1.0.125 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling unicode-segmentation v1.7.1 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Compiling argh_shared v0.1.4 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling instant v0.1.9 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling terminal_size v0.1.16 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling filetime v0.2.14 [INFO] [stderr] Compiling termios v0.3.3 [INFO] [stderr] Compiling clicolors-control v1.0.1 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling parking_lot_core v0.8.3 [INFO] [stderr] Compiling lock_api v0.4.3 [INFO] [stderr] Compiling heck v0.3.2 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling aho-corasick v0.7.15 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling number_prefix v0.2.8 [INFO] [stderr] Compiling notify v4.0.16 [INFO] [stderr] Compiling regex v1.4.6 [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 v0.1.4 [INFO] [stderr] Compiling argh v0.1.4 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v4.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 35.88s [INFO] running `Command { std: "docker" "inspect" "2cbec5e81e9d145d62ac8a80123d1e548e6db87f07ff122ee026924ebb3f01ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2cbec5e81e9d145d62ac8a80123d1e548e6db87f07ff122ee026924ebb3f01ec", kill_on_drop: false }` [INFO] [stdout] 2cbec5e81e9d145d62ac8a80123d1e548e6db87f07ff122ee026924ebb3f01ec [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dce3c0da41d57c20eae0c1c30e5f56377b54770e6f3084aec4d000ebd8ee9887 [INFO] running `Command { std: "docker" "start" "-a" "dce3c0da41d57c20eae0c1c30e5f56377b54770e6f3084aec4d000ebd8ee9887", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling predicates-core v1.0.2 [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 v1.0.2 [INFO] [stderr] Compiling predicates v1.0.7 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v4.4.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 10.44s [INFO] running `Command { std: "docker" "inspect" "dce3c0da41d57c20eae0c1c30e5f56377b54770e6f3084aec4d000ebd8ee9887", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dce3c0da41d57c20eae0c1c30e5f56377b54770e6f3084aec4d000ebd8ee9887", kill_on_drop: false }` [INFO] [stdout] dce3c0da41d57c20eae0c1c30e5f56377b54770e6f3084aec4d000ebd8ee9887 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 1efa42e78f65b84e4533a4cdf1ef4e546a7243dd33ae0a21aa67e5616a66a0ae [INFO] running `Command { std: "docker" "start" "-a" "1efa42e78f65b84e4533a4cdf1ef4e546a7243dd33ae0a21aa67e5616a66a0ae", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.24s [INFO] [stdout] running 4 tests [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rustlings-ca13cdb59bda5b6c) [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 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/exercise.rs:270:36 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55c2b7b03c30 - std::backtrace_rs::backtrace::libunwind::trace::h1037ca7e6eeef65c [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stdout] 1: 0x55c2b7b03c30 - std::backtrace_rs::backtrace::trace_unsynchronized::haaefac1bc3669450 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55c2b7b03c30 - std::sys_common::backtrace::_print_fmt::h863a6f5e6d995885 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x55c2b7b03c30 - ::fmt::h767e17e1aa7df6a8 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x55c2b7b2689c - core::fmt::write::h7aa6cd0067dca82a [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/fmt/mod.rs:1110:17 [INFO] [stdout] 5: 0x55c2b7b00c85 - std::io::Write::write_fmt::h6f1a9b91376a1376 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/io/mod.rs:1584:15 [INFO] [stdout] 6: 0x55c2b7b05d9b - std::sys_common::backtrace::_print::h2769edb26a7eb606 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x55c2b7b05d9b - std::sys_common::backtrace::print::ha71f3549862b4cb6 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x55c2b7b05d9b - std::panicking::default_hook::{{closure}}::h95488a3bade217f6 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:208:50 [INFO] [stdout] 9: 0x55c2b7b058ac - std::panicking::default_hook::h290aa602c0fb11df [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:222:9 [INFO] [stdout] 10: 0x55c2b7b06441 - std::panicking::rust_panic_with_hook::hf32c4fa635e215f2 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:622:17 [INFO] [stdout] 11: 0x55c2b7b05f47 - std::panicking::begin_panic_handler::{{closure}}::h95197ccd88846f7a [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:519:13 [INFO] [stdout] 12: 0x55c2b7b0410c - std::sys_common::backtrace::__rust_end_short_backtrace::h7641df9566f7b7d0 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stdout] 13: 0x55c2b7b05ea9 - rust_begin_unwind [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:515:5 [INFO] [stdout] 14: 0x55c2b790f991 - core::panicking::panic_fmt::hbe99dddd3092ba3c [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/panicking.rs:92:14 [INFO] [stdout] 15: 0x55c2b790fa83 - core::result::unwrap_failed::hf79563fef9d11ab8 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/result.rs:1355:5 [INFO] [stdout] 16: 0x55c2b791a34e - core::result::Result::unwrap::hff038e564efcf4f3 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/result.rs:1037:23 [INFO] [stdout] 17: 0x55c2b791b033 - rustlings::exercise::test::test_clean::hf8fd9d576a538715 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:270:9 [INFO] [stdout] 18: 0x55c2b791afea - rustlings::exercise::test::test_clean::{{closure}}::h418fcadb136689d7 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:5 [INFO] [stdout] 19: 0x55c2b7913b4e - core::ops::function::FnOnce::call_once::hac6d4d4cc032bb96 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 20: 0x55c2b7949cc3 - core::ops::function::FnOnce::call_once::h673fbe3f96486fd2 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 21: 0x55c2b7949cc3 - test::__rust_begin_short_backtrace::h8eedc24e104ef6a0 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:577:5 [INFO] [stdout] 22: 0x55c2b7948770 - as core::ops::function::FnOnce>::call_once::h028d0969d3f94d78 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9 [INFO] [stdout] 23: 0x55c2b7948770 - as core::ops::function::FnOnce<()>>::call_once::h7634b01590b1722b [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9 [INFO] [stdout] 24: 0x55c2b7948770 - std::panicking::try::do_call::hf74f869706dec63b [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40 [INFO] [stdout] 25: 0x55c2b7948770 - std::panicking::try::hd0b7346ebfaaae44 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19 [INFO] [stdout] 26: 0x55c2b7948770 - std::panic::catch_unwind::hdbf6904f7c253080 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14 [INFO] [stdout] 27: 0x55c2b7948770 - test::run_test_in_process::h87e95a014ac91067 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:600:18 [INFO] [stdout] 28: 0x55c2b7948770 - test::run_test::run_test_inner::{{closure}}::hdd69ae44aaab3470 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:492:39 [INFO] [stdout] 29: 0x55c2b7923a42 - test::run_test::run_test_inner::{{closure}}::hc159305704d5b68a [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:519:37 [INFO] [stdout] 30: 0x55c2b7923a42 - std::sys_common::backtrace::__rust_begin_short_backtrace::h33d8a8ad5f788fcc [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stdout] 31: 0x55c2b79277b8 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h6181011ddf4b8353 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:481:17 [INFO] [stdout] 32: 0x55c2b79277b8 - as core::ops::function::FnOnce<()>>::call_once::hf924ea0a0f25a1c0 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9 [INFO] [stdout] 33: 0x55c2b79277b8 - std::panicking::try::do_call::hd58061792d05fa5c [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40 [INFO] [stdout] 34: 0x55c2b79277b8 - std::panicking::try::h3080747417e5af37 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19 [INFO] [stdout] 35: 0x55c2b79277b8 - std::panic::catch_unwind::hfeba515dcf36cb66 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14 [INFO] [stdout] 36: 0x55c2b79277b8 - std::thread::Builder::spawn_unchecked::{{closure}}::h29d57a62faff749b [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:480:30 [INFO] [stdout] 37: 0x55c2b79277b8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h44709d312d2a9c59 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 38: 0x55c2b7b0b1e7 - as core::ops::function::FnOnce>::call_once::h902e2cf6655e1b0c [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9 [INFO] [stdout] 39: 0x55c2b7b0b1e7 - as core::ops::function::FnOnce>::call_once::h893a5452154309d1 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9 [INFO] [stdout] 40: 0x55c2b7b0b1e7 - std::sys::unix::thread::Thread::new::thread_start::hdedcb57c96ab37cd [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys/unix/thread.rs:71:17 [INFO] [stdout] 41: 0x7fee4c588609 - start_thread [INFO] [stdout] 42: 0x7fee4c6df293 - 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_ThreadId3.4n7cv8jstgdhyzzp.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: 0x55c2b7b03c30 - std::backtrace_rs::backtrace::libunwind::trace::h1037ca7e6eeef65c [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stdout] 1: 0x55c2b7b03c30 - std::backtrace_rs::backtrace::trace_unsynchronized::haaefac1bc3669450 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55c2b7b03c30 - std::sys_common::backtrace::_print_fmt::h863a6f5e6d995885 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x55c2b7b03c30 - ::fmt::h767e17e1aa7df6a8 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x55c2b7b2689c - core::fmt::write::h7aa6cd0067dca82a [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/fmt/mod.rs:1110:17 [INFO] [stdout] 5: 0x55c2b7b00c85 - std::io::Write::write_fmt::h6f1a9b91376a1376 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/io/mod.rs:1584:15 [INFO] [stdout] 6: 0x55c2b7b05d9b - std::sys_common::backtrace::_print::h2769edb26a7eb606 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x55c2b7b05d9b - std::sys_common::backtrace::print::ha71f3549862b4cb6 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x55c2b7b05d9b - std::panicking::default_hook::{{closure}}::h95488a3bade217f6 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:208:50 [INFO] [stdout] 9: 0x55c2b7b058ac - std::panicking::default_hook::h290aa602c0fb11df [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:222:9 [INFO] [stdout] 10: 0x55c2b7b06441 - std::panicking::rust_panic_with_hook::hf32c4fa635e215f2 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:622:17 [INFO] [stdout] 11: 0x55c2b7b05f47 - std::panicking::begin_panic_handler::{{closure}}::h95197ccd88846f7a [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:519:13 [INFO] [stdout] 12: 0x55c2b7b0410c - std::sys_common::backtrace::__rust_end_short_backtrace::h7641df9566f7b7d0 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stdout] 13: 0x55c2b7b05ea9 - rust_begin_unwind [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:515:5 [INFO] [stdout] 14: 0x55c2b790f991 - core::panicking::panic_fmt::hbe99dddd3092ba3c [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/panicking.rs:92:14 [INFO] [stdout] 15: 0x55c2b790fa83 - core::result::unwrap_failed::hf79563fef9d11ab8 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/result.rs:1355:5 [INFO] [stdout] 16: 0x55c2b791a203 - core::result::Result::unwrap::h048850400b3a6510 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/result.rs:1037:23 [INFO] [stdout] 17: 0x55c2b791bc7c - rustlings::exercise::test::test_exercise_with_output::hcc9d624f90b98108 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:343:19 [INFO] [stdout] 18: 0x55c2b791bb3a - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h249e2105faf921b1 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:336:5 [INFO] [stdout] 19: 0x55c2b7913aae - core::ops::function::FnOnce::call_once::h4dfd8d72eec9047b [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 20: 0x55c2b7949cc3 - core::ops::function::FnOnce::call_once::h673fbe3f96486fd2 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 21: 0x55c2b7949cc3 - test::__rust_begin_short_backtrace::h8eedc24e104ef6a0 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:577:5 [INFO] [stdout] 22: 0x55c2b7948770 - as core::ops::function::FnOnce>::call_once::h028d0969d3f94d78 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9 [INFO] [stdout] 23: 0x55c2b7948770 - as core::ops::function::FnOnce<()>>::call_once::h7634b01590b1722b [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9 [INFO] [stdout] 24: 0x55c2b7948770 - std::panicking::try::do_call::hf74f869706dec63b [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40 [INFO] [stdout] 25: 0x55c2b7948770 - std::panicking::try::hd0b7346ebfaaae44 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19 [INFO] [stdout] 26: 0x55c2b7948770 - std::panic::catch_unwind::hdbf6904f7c253080 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14 [INFO] [stdout] 27: 0x55c2b7948770 - test::run_test_in_process::h87e95a014ac91067 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:600:18 [INFO] [stdout] 28: 0x55c2b7948770 - test::run_test::run_test_inner::{{closure}}::hdd69ae44aaab3470 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:492:39 [INFO] [stdout] 29: 0x55c2b7923a42 - test::run_test::run_test_inner::{{closure}}::hc159305704d5b68a [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/test/src/lib.rs:519:37 [INFO] [stdout] 30: 0x55c2b7923a42 - std::sys_common::backtrace::__rust_begin_short_backtrace::h33d8a8ad5f788fcc [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stdout] 31: 0x55c2b79277b8 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h6181011ddf4b8353 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:481:17 [INFO] [stdout] 32: 0x55c2b79277b8 - as core::ops::function::FnOnce<()>>::call_once::hf924ea0a0f25a1c0 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:346:9 [INFO] [stdout] 33: 0x55c2b79277b8 - std::panicking::try::do_call::hd58061792d05fa5c [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:401:40 [INFO] [stdout] 34: 0x55c2b79277b8 - std::panicking::try::h3080747417e5af37 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panicking.rs:365:19 [INFO] [stdout] 35: 0x55c2b79277b8 - std::panic::catch_unwind::hfeba515dcf36cb66 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/panic.rs:433:14 [INFO] [stdout] 36: 0x55c2b79277b8 - std::thread::Builder::spawn_unchecked::{{closure}}::h29d57a62faff749b [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/thread/mod.rs:480:30 [INFO] [stdout] 37: 0x55c2b79277b8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h44709d312d2a9c59 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 38: 0x55c2b7b0b1e7 - as core::ops::function::FnOnce>::call_once::h902e2cf6655e1b0c [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9 [INFO] [stdout] 39: 0x55c2b7b0b1e7 - as core::ops::function::FnOnce>::call_once::h893a5452154309d1 [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/alloc/src/boxed.rs:1575:9 [INFO] [stdout] 40: 0x55c2b7b0b1e7 - std::sys::unix::thread::Thread::new::thread_start::hdedcb57c96ab37cd [INFO] [stdout] at /rustc/99e3aef02079e9c10583638520cd0c134dc3a01d/library/std/src/sys/unix/thread.rs:71:17 [INFO] [stdout] 41: 0x7fee4c588609 - start_thread [INFO] [stdout] 42: 0x7fee4c6df293 - 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 0.15s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--bin rustlings' [INFO] running `Command { std: "docker" "inspect" "1efa42e78f65b84e4533a4cdf1ef4e546a7243dd33ae0a21aa67e5616a66a0ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1efa42e78f65b84e4533a4cdf1ef4e546a7243dd33ae0a21aa67e5616a66a0ae", kill_on_drop: false }` [INFO] [stdout] 1efa42e78f65b84e4533a4cdf1ef4e546a7243dd33ae0a21aa67e5616a66a0ae