[INFO] cloning repository https://github.com/rjyo/rustlings_answers [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rjyo/rustlings_answers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjyo%2Frustlings_answers", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjyo%2Frustlings_answers'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ea9b707d5c58334cc191f5789ce4c27707a71cb2 [INFO] testing rjyo/rustlings_answers against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frjyo%2Frustlings_answers" "/workspace/builds/worker-20/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rjyo/rustlings_answers on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rjyo/rustlings_answers [INFO] finished tweaking git repo https://github.com/rjyo/rustlings_answers [INFO] tweaked toml for git repo https://github.com/rjyo/rustlings_answers written to /workspace/builds/worker-20/source/Cargo.toml [INFO] crate git repo https://github.com/rjyo/rustlings_answers already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded console v0.13.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3b0b412ea85458562d1df22fec04d03e36a0cd64369e93703c50a92ed733fa75 [INFO] running `Command { std: "docker" "start" "-a" "3b0b412ea85458562d1df22fec04d03e36a0cd64369e93703c50a92ed733fa75", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3b0b412ea85458562d1df22fec04d03e36a0cd64369e93703c50a92ed733fa75", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b0b412ea85458562d1df22fec04d03e36a0cd64369e93703c50a92ed733fa75", kill_on_drop: false }` [INFO] [stdout] 3b0b412ea85458562d1df22fec04d03e36a0cd64369e93703c50a92ed733fa75 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] bc24bcdd002c6d6da09247d71cf6ada5ae55b409f0aa7ebce5f6f80f4d4233b0 [INFO] running `Command { std: "docker" "start" "-a" "bc24bcdd002c6d6da09247d71cf6ada5ae55b409f0aa7ebce5f6f80f4d4233b0", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling proc-macro2 v1.0.24 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling syn v1.0.55 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling regex-syntax v0.6.21 [INFO] [stderr] Compiling serde_derive v1.0.118 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling serde v1.0.118 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling vec_map v0.8.2 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling instant v0.1.9 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling walkdir v2.3.1 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling lock_api v0.4.2 [INFO] [stderr] Compiling 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v0.7.7 [INFO] [stderr] Compiling indicatif v0.10.3 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v4.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 32s [INFO] running `Command { std: "docker" "inspect" "bc24bcdd002c6d6da09247d71cf6ada5ae55b409f0aa7ebce5f6f80f4d4233b0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bc24bcdd002c6d6da09247d71cf6ada5ae55b409f0aa7ebce5f6f80f4d4233b0", kill_on_drop: false }` [INFO] [stdout] bc24bcdd002c6d6da09247d71cf6ada5ae55b409f0aa7ebce5f6f80f4d4233b0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e9416d80aaaba1c2ecd82da74db89671b64ca3319f6e93280b19ae3c1e4deefc [INFO] running `Command { std: "docker" "start" "-a" "e9416d80aaaba1c2ecd82da74db89671b64ca3319f6e93280b19ae3c1e4deefc", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.60 [INFO] [stderr] Compiling predicates-core v1.0.0 [INFO] [stderr] Compiling itoa v0.4.6 [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 v1.0.0 [INFO] [stderr] Compiling predicates v1.0.5 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v4.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 15.19s [INFO] running `Command { std: "docker" "inspect" "e9416d80aaaba1c2ecd82da74db89671b64ca3319f6e93280b19ae3c1e4deefc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e9416d80aaaba1c2ecd82da74db89671b64ca3319f6e93280b19ae3c1e4deefc", kill_on_drop: false }` [INFO] [stdout] e9416d80aaaba1c2ecd82da74db89671b64ca3319f6e93280b19ae3c1e4deefc [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 76c16a8ee9a2d61ba3745fa4505ba775c88a9a8586da44e7b0b14f23f3e0eeb5 [INFO] running `Command { std: "docker" "start" "-a" "76c16a8ee9a2d61ba3745fa4505ba775c88a9a8586da44e7b0b14f23f3e0eeb5", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.10s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rustlings-f50f277d4da28892) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test exercise::test::test_pending_state ... ok [INFO] [stdout] test exercise::test::test_finished_exercise ... 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: ReadOnlyFilesystem, message: "Read-only file system" }', src/exercise.rs:255:36 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55e258d4c8d0 - std::backtrace_rs::backtrace::libunwind::trace::h99dbb39dca18857d [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stdout] 1: 0x55e258d4c8d0 - std::backtrace_rs::backtrace::trace_unsynchronized::h832861927e9cfedf [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55e258d4c8d0 - std::sys_common::backtrace::_print_fmt::h3d18154c77dcf310 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x55e258d4c8d0 - ::fmt::he312f4ad5b9bb346 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x55e258d6f5bc - core::fmt::write::h9a6d9c74526a6c1b [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/fmt/mod.rs:1115:17 [INFO] [stdout] 5: 0x55e258d49815 - std::io::Write::write_fmt::h65d36b96410d80d7 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/io/mod.rs:1665:15 [INFO] [stdout] 6: 0x55e258d4ea4b - std::sys_common::backtrace::_print::h65d996766de40da4 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x55e258d4ea4b - std::sys_common::backtrace::print::h40df9727e635f303 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x55e258d4ea4b - std::panicking::default_hook::{{closure}}::hd2da4327dea91a51 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:208:50 [INFO] [stdout] 9: 0x55e258d4e55c - std::panicking::default_hook::h3d55120ad6ada158 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:222:9 [INFO] [stdout] 10: 0x55e258d4f114 - std::panicking::rust_panic_with_hook::hf85dd0bb545e3b55 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:622:17 [INFO] [stdout] 11: 0x55e258d4ebf7 - std::panicking::begin_panic_handler::{{closure}}::h736ae969434da9fa [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:519:13 [INFO] [stdout] 12: 0x55e258d4cdac - std::sys_common::backtrace::__rust_end_short_backtrace::h6133bb80b1d6c3e0 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stdout] 13: 0x55e258d4eb59 - rust_begin_unwind [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:515:5 [INFO] [stdout] 14: 0x55e258b538c1 - core::panicking::panic_fmt::hcf5f6d96e1dd7099 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/panicking.rs:92:14 [INFO] [stdout] 15: 0x55e258b539b3 - core::result::unwrap_failed::he898b02f57993c42 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/result.rs:1599:5 [INFO] [stdout] 16: 0x55e258b5e9ae - core::result::Result::unwrap::hc587960e28e21e64 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/result.rs:1281:23 [INFO] [stdout] 17: 0x55e258b57ec3 - rustlings::exercise::test::test_clean::hfaf45a244ebdfdd9 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:255:9 [INFO] [stdout] 18: 0x55e258b57e7a - rustlings::exercise::test::test_clean::{{closure}}::h02c9282ea3d347bf [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:254:5 [INFO] [stdout] 19: 0x55e258b6148e - core::ops::function::FnOnce::call_once::hbc112b591800b6c7 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 20: 0x55e258b9dd33 - core::ops::function::FnOnce::call_once::h227fa683a5745bd3 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 21: 0x55e258b9dd33 - test::__rust_begin_short_backtrace::h3a193bd570ada00a [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/test/src/lib.rs:578:5 [INFO] [stdout] 22: 0x55e258b9c7a8 - as core::ops::function::FnOnce>::call_once::h262d2f411717179a [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/alloc/src/boxed.rs:1572:9 [INFO] [stdout] 23: 0x55e258b9c7a8 - as core::ops::function::FnOnce<()>>::call_once::hfec00caec3e52a7b [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panic.rs:347:9 [INFO] [stdout] 24: 0x55e258b9c7a8 - std::panicking::try::do_call::ha5f42e76ffda569d [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:401:40 [INFO] [stdout] 25: 0x55e258b9c7a8 - std::panicking::try::h53f36df0935b9500 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:365:19 [INFO] [stdout] 26: 0x55e258b9c7a8 - std::panic::catch_unwind::h5a497f74b0ce006f [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panic.rs:434:14 [INFO] [stdout] 27: 0x55e258b9c7a8 - test::run_test_in_process::hab0aead337f48a88 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/test/src/lib.rs:601:18 [INFO] [stdout] 28: 0x55e258b9c7a8 - test::run_test::run_test_inner::{{closure}}::h632c383164d4cba2 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/test/src/lib.rs:493:39 [INFO] [stdout] 29: 0x55e258b6af2d - test::run_test::run_test_inner::{{closure}}::h7c4b3612891a4b58 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/test/src/lib.rs:520:37 [INFO] [stdout] 30: 0x55e258b6af2d - std::sys_common::backtrace::__rust_begin_short_backtrace::habf7d8a08419d00e [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stdout] 31: 0x55e258b6f658 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h3acba502e2068204 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/thread/mod.rs:476:17 [INFO] [stdout] 32: 0x55e258b6f658 - as core::ops::function::FnOnce<()>>::call_once::h526ef819c1964a35 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panic.rs:347:9 [INFO] [stdout] 33: 0x55e258b6f658 - std::panicking::try::do_call::hc0b5663d6373cec8 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:401:40 [INFO] [stdout] 34: 0x55e258b6f658 - std::panicking::try::ha9007ede9d35dcd6 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:365:19 [INFO] [stdout] 35: 0x55e258b6f658 - std::panic::catch_unwind::hf60d56329ebbb81c [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panic.rs:434:14 [INFO] [stdout] 36: 0x55e258b6f658 - std::thread::Builder::spawn_unchecked::{{closure}}::hb1722d498f4ce777 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/thread/mod.rs:475:30 [INFO] [stdout] 37: 0x55e258b6f658 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h15eb01325730c962 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 38: 0x55e258d53f77 - as core::ops::function::FnOnce>::call_once::h09f167e08fc945ff [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/alloc/src/boxed.rs:1572:9 [INFO] [stdout] 39: 0x55e258d53f77 - as core::ops::function::FnOnce>::call_once::hf814fe85eeb118e0 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/alloc/src/boxed.rs:1572:9 [INFO] [stdout] 40: 0x55e258d53f77 - std::sys::unix::thread::Thread::new::thread_start::hb71b17934c5f5e68 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys/unix/thread.rs:91:17 [INFO] [stdout] 41: 0x7fcf29b6e609 - start_thread [INFO] [stdout] 42: 0x7fcf29cc5293 - 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_8_ThreadId3.testSuccess.7179e081-cgu.3.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:328:38 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55e258d4c8d0 - std::backtrace_rs::backtrace::libunwind::trace::h99dbb39dca18857d [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stdout] 1: 0x55e258d4c8d0 - std::backtrace_rs::backtrace::trace_unsynchronized::h832861927e9cfedf [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55e258d4c8d0 - std::sys_common::backtrace::_print_fmt::h3d18154c77dcf310 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x55e258d4c8d0 - ::fmt::he312f4ad5b9bb346 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x55e258d6f5bc - core::fmt::write::h9a6d9c74526a6c1b [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/fmt/mod.rs:1115:17 [INFO] [stdout] 5: 0x55e258d49815 - std::io::Write::write_fmt::h65d36b96410d80d7 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/io/mod.rs:1665:15 [INFO] [stdout] 6: 0x55e258d4ea4b - std::sys_common::backtrace::_print::h65d996766de40da4 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x55e258d4ea4b - std::sys_common::backtrace::print::h40df9727e635f303 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x55e258d4ea4b - std::panicking::default_hook::{{closure}}::hd2da4327dea91a51 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:208:50 [INFO] [stdout] 9: 0x55e258d4e55c - std::panicking::default_hook::h3d55120ad6ada158 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:222:9 [INFO] [stdout] 10: 0x55e258d4f114 - std::panicking::rust_panic_with_hook::hf85dd0bb545e3b55 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:622:17 [INFO] [stdout] 11: 0x55e258d4ebf7 - std::panicking::begin_panic_handler::{{closure}}::h736ae969434da9fa [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:519:13 [INFO] [stdout] 12: 0x55e258d4cdac - std::sys_common::backtrace::__rust_end_short_backtrace::h6133bb80b1d6c3e0 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stdout] 13: 0x55e258d4eb59 - rust_begin_unwind [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:515:5 [INFO] [stdout] 14: 0x55e258b538c1 - core::panicking::panic_fmt::hcf5f6d96e1dd7099 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/panicking.rs:92:14 [INFO] [stdout] 15: 0x55e258b539b3 - core::result::unwrap_failed::he898b02f57993c42 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/result.rs:1599:5 [INFO] [stdout] 16: 0x55e258b5ea53 - core::result::Result::unwrap::hda25551c3e62a08f [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/result.rs:1281:23 [INFO] [stdout] 17: 0x55e258b58afc - rustlings::exercise::test::test_exercise_with_output::ha7aecaa675d3ddea [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:328:19 [INFO] [stdout] 18: 0x55e258b589ba - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h0317a26867a3850d [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:321:5 [INFO] [stdout] 19: 0x55e258b6138e - core::ops::function::FnOnce::call_once::h2c7dc6eaef5d3966 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 20: 0x55e258b9dd33 - core::ops::function::FnOnce::call_once::h227fa683a5745bd3 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 21: 0x55e258b9dd33 - test::__rust_begin_short_backtrace::h3a193bd570ada00a [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/test/src/lib.rs:578:5 [INFO] [stdout] 22: 0x55e258b9c7a8 - as core::ops::function::FnOnce>::call_once::h262d2f411717179a [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/alloc/src/boxed.rs:1572:9 [INFO] [stdout] 23: 0x55e258b9c7a8 - as core::ops::function::FnOnce<()>>::call_once::hfec00caec3e52a7b [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panic.rs:347:9 [INFO] [stdout] 24: 0x55e258b9c7a8 - std::panicking::try::do_call::ha5f42e76ffda569d [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:401:40 [INFO] [stdout] 25: 0x55e258b9c7a8 - std::panicking::try::h53f36df0935b9500 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:365:19 [INFO] [stdout] 26: 0x55e258b9c7a8 - std::panic::catch_unwind::h5a497f74b0ce006f [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panic.rs:434:14 [INFO] [stdout] 27: 0x55e258b9c7a8 - test::run_test_in_process::hab0aead337f48a88 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/test/src/lib.rs:601:18 [INFO] [stdout] 28: 0x55e258b9c7a8 - test::run_test::run_test_inner::{{closure}}::h632c383164d4cba2 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/test/src/lib.rs:493:39 [INFO] [stdout] 29: 0x55e258b6af2d - test::run_test::run_test_inner::{{closure}}::h7c4b3612891a4b58 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/test/src/lib.rs:520:37 [INFO] [stdout] 30: 0x55e258b6af2d - std::sys_common::backtrace::__rust_begin_short_backtrace::habf7d8a08419d00e [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stdout] 31: 0x55e258b6f658 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h3acba502e2068204 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/thread/mod.rs:476:17 [INFO] [stdout] 32: 0x55e258b6f658 - as core::ops::function::FnOnce<()>>::call_once::h526ef819c1964a35 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panic.rs:347:9 [INFO] [stdout] 33: 0x55e258b6f658 - std::panicking::try::do_call::hc0b5663d6373cec8 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:401:40 [INFO] [stdout] 34: 0x55e258b6f658 - std::panicking::try::ha9007ede9d35dcd6 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panicking.rs:365:19 [INFO] [stdout] 35: 0x55e258b6f658 - std::panic::catch_unwind::hf60d56329ebbb81c [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/panic.rs:434:14 [INFO] [stdout] 36: 0x55e258b6f658 - std::thread::Builder::spawn_unchecked::{{closure}}::hb1722d498f4ce777 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/thread/mod.rs:475:30 [INFO] [stdout] 37: 0x55e258b6f658 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h15eb01325730c962 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 38: 0x55e258d53f77 - as core::ops::function::FnOnce>::call_once::h09f167e08fc945ff [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/alloc/src/boxed.rs:1572:9 [INFO] [stdout] 39: 0x55e258d53f77 - as core::ops::function::FnOnce>::call_once::hf814fe85eeb118e0 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/alloc/src/boxed.rs:1572:9 [INFO] [stdout] 40: 0x55e258d53f77 - std::sys::unix::thread::Thread::new::thread_start::hb71b17934c5f5e68 [INFO] [stdout] at /rustc/d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2/library/std/src/sys/unix/thread.rs:91:17 [INFO] [stdout] 41: 0x7fcf29b6e609 - start_thread [INFO] [stdout] 42: 0x7fcf29cc5293 - 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 0.20s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--bin rustlings' [INFO] running `Command { std: "docker" "inspect" "76c16a8ee9a2d61ba3745fa4505ba775c88a9a8586da44e7b0b14f23f3e0eeb5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76c16a8ee9a2d61ba3745fa4505ba775c88a9a8586da44e7b0b14f23f3e0eeb5", kill_on_drop: false }` [INFO] [stdout] 76c16a8ee9a2d61ba3745fa4505ba775c88a9a8586da44e7b0b14f23f3e0eeb5