[INFO] cloning repository https://github.com/tracehelms/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/tracehelms/rustlings-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftracehelms%2Frustlings-solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftracehelms%2Frustlings-solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] ca99473627ba8e1178a743f4f0c2d39f92bb8d7d [INFO] testing tracehelms/rustlings-solutions against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftracehelms%2Frustlings-solutions" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/tracehelms/rustlings-solutions on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/tracehelms/rustlings-solutions [INFO] finished tweaking git repo https://github.com/tracehelms/rustlings-solutions [INFO] tweaked toml for git repo https://github.com/tracehelms/rustlings-solutions written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/tracehelms/rustlings-solutions already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 267b7cb0937bbc9ab43f73fc184ad55b0b149359589acc9e57d738ae45bddb70 [INFO] running `Command { std: "docker" "start" "-a" "267b7cb0937bbc9ab43f73fc184ad55b0b149359589acc9e57d738ae45bddb70", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "267b7cb0937bbc9ab43f73fc184ad55b0b149359589acc9e57d738ae45bddb70", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "267b7cb0937bbc9ab43f73fc184ad55b0b149359589acc9e57d738ae45bddb70", kill_on_drop: false }` [INFO] [stdout] 267b7cb0937bbc9ab43f73fc184ad55b0b149359589acc9e57d738ae45bddb70 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1e69e35cec557d46168c5c990e9b7b2adec343ee4f0c6bf82207844bf29fcd9d [INFO] running `Command { std: "docker" "start" "-a" "1e69e35cec557d46168c5c990e9b7b2adec343ee4f0c6bf82207844bf29fcd9d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling autocfg v0.1.4 [INFO] [stderr] Compiling rand_core v0.4.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling smallvec v0.6.9 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling serde v1.0.92 [INFO] [stderr] Compiling same-file v1.0.4 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling regex-syntax v0.6.6 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Compiling aho-corasick v0.7.3 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Compiling lock_api v0.2.0 [INFO] [stderr] Compiling walkdir v2.2.7 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling termios v0.3.1 [INFO] [stderr] Compiling clicolors-control v1.0.0 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling inotify-sys v0.1.3 [INFO] [stderr] Compiling filetime v0.2.5 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling inotify v0.7.0 [INFO] [stderr] Compiling number_prefix v0.2.8 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling mio-extras v2.0.5 [INFO] [stderr] Compiling notify v4.0.15 [INFO] [stderr] Compiling console v0.8.0 [INFO] [stderr] Compiling console v0.7.7 [INFO] [stderr] Compiling indicatif v0.10.3 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v4.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 46.19s [INFO] running `Command { std: "docker" "inspect" "1e69e35cec557d46168c5c990e9b7b2adec343ee4f0c6bf82207844bf29fcd9d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1e69e35cec557d46168c5c990e9b7b2adec343ee4f0c6bf82207844bf29fcd9d", kill_on_drop: false }` [INFO] [stdout] 1e69e35cec557d46168c5c990e9b7b2adec343ee4f0c6bf82207844bf29fcd9d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 999bd04d233c03d57a7617043e09951109db8af99210daef0c81888524cf9af0 [INFO] running `Command { std: "docker" "start" "-a" "999bd04d233c03d57a7617043e09951109db8af99210daef0c81888524cf9af0", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v0.2.8 [INFO] [stderr] Compiling predicates-core v1.0.0 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling itoa v0.4.4 [INFO] [stderr] Compiling normalize-line-endings v0.2.2 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling float-cmp v0.4.0 [INFO] [stderr] Compiling predicates-tree v1.0.0 [INFO] [stderr] Compiling predicates v1.0.1 [INFO] [stderr] Compiling serde_json v1.0.39 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v4.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 10.12s [INFO] running `Command { std: "docker" "inspect" "999bd04d233c03d57a7617043e09951109db8af99210daef0c81888524cf9af0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "999bd04d233c03d57a7617043e09951109db8af99210daef0c81888524cf9af0", kill_on_drop: false }` [INFO] [stdout] 999bd04d233c03d57a7617043e09951109db8af99210daef0c81888524cf9af0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f048d36057312860ac60f8b3ac3c8c73fe58eed711cf6dc46babece2f514ee56 [INFO] running `Command { std: "docker" "start" "-a" "f048d36057312860ac60f8b3ac3c8c73fe58eed711cf6dc46babece2f514ee56", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rustlings-4db33ea58bbc9d58) [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] [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:249:36 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5631f0ad6600 - std::backtrace_rs::backtrace::libunwind::trace::h706b838f5bbd876b [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stdout] 1: 0x5631f0ad6600 - std::backtrace_rs::backtrace::trace_unsynchronized::hc15f29ae7822b7b8 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5631f0ad6600 - std::sys_common::backtrace::_print_fmt::h7c580c971f91926c [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x5631f0ad6600 - ::fmt::h2a772198c4032452 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x5631f0af908c - core::fmt::write::h9a6d9c74526a6c1b [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/fmt/mod.rs:1115:17 [INFO] [stdout] 5: 0x5631f0ad3655 - std::io::Write::write_fmt::h583dff5009d01a9f [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/io/mod.rs:1663:15 [INFO] [stdout] 6: 0x5631f0ad876b - std::sys_common::backtrace::_print::h5b3c171e6f864ae4 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x5631f0ad876b - std::sys_common::backtrace::print::h93b9e9ed2a98e611 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x5631f0ad876b - std::panicking::default_hook::{{closure}}::hd8da92bb68d520c5 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:208:50 [INFO] [stdout] 9: 0x5631f0ad827c - std::panicking::default_hook::hdbc8b2951c5afbab [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:222:9 [INFO] [stdout] 10: 0x5631f0ad8e34 - std::panicking::rust_panic_with_hook::h8a4c841655926f4e [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:622:17 [INFO] [stdout] 11: 0x5631f0ad8917 - std::panicking::begin_panic_handler::{{closure}}::h471b6bc74904b7b0 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:519:13 [INFO] [stdout] 12: 0x5631f0ad6afc - std::sys_common::backtrace::__rust_end_short_backtrace::h309f5c707f29932f [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stdout] 13: 0x5631f0ad8879 - rust_begin_unwind [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:515:5 [INFO] [stdout] 14: 0x5631f0904b51 - core::panicking::panic_fmt::hcf5f6d96e1dd7099 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/panicking.rs:92:14 [INFO] [stdout] 15: 0x5631f0904c43 - core::result::unwrap_failed::he898b02f57993c42 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/result.rs:1355:5 [INFO] [stdout] 16: 0x5631f090bcae - core::result::Result::unwrap::h5d91b3d58de941fa [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/result.rs:1037:23 [INFO] [stdout] 17: 0x5631f0912243 - rustlings::exercise::test::test_clean::h6d8a2e8709f44d90 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:249:9 [INFO] [stdout] 18: 0x5631f09121fa - rustlings::exercise::test::test_clean::{{closure}}::h4682d9d3edad2ea8 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:248:5 [INFO] [stdout] 19: 0x5631f090fb8e - core::ops::function::FnOnce::call_once::h4b0aef08abfcbd3f [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 20: 0x5631f0940953 - core::ops::function::FnOnce::call_once::h99a97b0ff983bd25 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 21: 0x5631f0940953 - test::__rust_begin_short_backtrace::h8fe0d26ed1584e50 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:577:5 [INFO] [stdout] 22: 0x5631f093f3e0 - as core::ops::function::FnOnce>::call_once::he6b90e352f394d8f [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/alloc/src/boxed.rs:1572:9 [INFO] [stdout] 23: 0x5631f093f3e0 - as core::ops::function::FnOnce<()>>::call_once::h1c05475e029700b8 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:347:9 [INFO] [stdout] 24: 0x5631f093f3e0 - std::panicking::try::do_call::he6de943476ae628a [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:401:40 [INFO] [stdout] 25: 0x5631f093f3e0 - std::panicking::try::ha21937b8feb06f89 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:365:19 [INFO] [stdout] 26: 0x5631f093f3e0 - std::panic::catch_unwind::ha79830b3325c9fa6 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:434:14 [INFO] [stdout] 27: 0x5631f093f3e0 - test::run_test_in_process::h1ab180b83ee2d5b5 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:600:18 [INFO] [stdout] 28: 0x5631f093f3e0 - test::run_test::run_test_inner::{{closure}}::h8258ffe088f187a1 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:492:39 [INFO] [stdout] 29: 0x5631f09189a2 - test::run_test::run_test_inner::{{closure}}::hc697b214abd32bc6 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:519:37 [INFO] [stdout] 30: 0x5631f09189a2 - std::sys_common::backtrace::__rust_begin_short_backtrace::h64de0d3f894854a9 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stdout] 31: 0x5631f091c5f8 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h1fd98fc86e533ece [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/thread/mod.rs:476:17 [INFO] [stdout] 32: 0x5631f091c5f8 - as core::ops::function::FnOnce<()>>::call_once::h4e2a7abf702e4cfd [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:347:9 [INFO] [stdout] 33: 0x5631f091c5f8 - std::panicking::try::do_call::h4496392321a3c8c0 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:401:40 [INFO] [stdout] 34: 0x5631f091c5f8 - std::panicking::try::hf1e14258e04e8e9a [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:365:19 [INFO] [stdout] 35: 0x5631f091c5f8 - std::panic::catch_unwind::hb72c3777cd55642f [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:434:14 [INFO] [stdout] 36: 0x5631f091c5f8 - std::thread::Builder::spawn_unchecked::{{closure}}::h2d7915a5910e148e [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/thread/mod.rs:475:30 [INFO] [stdout] 37: 0x5631f091c5f8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h83fd2f1ef5be797c [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 38: 0x5631f0addc67 - as core::ops::function::FnOnce>::call_once::ha8b1d5a0092467fc [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/alloc/src/boxed.rs:1572:9 [INFO] [stdout] 39: 0x5631f0addc67 - as core::ops::function::FnOnce>::call_once::h4b9f24ec4e8a879e [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/alloc/src/boxed.rs:1572:9 [INFO] [stdout] 40: 0x5631f0addc67 - std::sys::unix::thread::Thread::new::thread_start::h2a0e98fbc4ab4c32 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys/unix/thread.rs:72:17 [INFO] [stdout] 41: 0x7fb304d79609 - start_thread [INFO] [stdout] 42: 0x7fb304ed0293 - 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_8.4yb83bihoeyrwl19.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:322:38 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5631f0ad6600 - std::backtrace_rs::backtrace::libunwind::trace::h706b838f5bbd876b [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 [INFO] [stdout] 1: 0x5631f0ad6600 - std::backtrace_rs::backtrace::trace_unsynchronized::hc15f29ae7822b7b8 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x5631f0ad6600 - std::sys_common::backtrace::_print_fmt::h7c580c971f91926c [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x5631f0ad6600 - ::fmt::h2a772198c4032452 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x5631f0af908c - core::fmt::write::h9a6d9c74526a6c1b [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/fmt/mod.rs:1115:17 [INFO] [stdout] 5: 0x5631f0ad3655 - std::io::Write::write_fmt::h583dff5009d01a9f [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/io/mod.rs:1663:15 [INFO] [stdout] 6: 0x5631f0ad876b - std::sys_common::backtrace::_print::h5b3c171e6f864ae4 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x5631f0ad876b - std::sys_common::backtrace::print::h93b9e9ed2a98e611 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x5631f0ad876b - std::panicking::default_hook::{{closure}}::hd8da92bb68d520c5 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:208:50 [INFO] [stdout] 9: 0x5631f0ad827c - std::panicking::default_hook::hdbc8b2951c5afbab [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:222:9 [INFO] [stdout] 10: 0x5631f0ad8e34 - std::panicking::rust_panic_with_hook::h8a4c841655926f4e [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:622:17 [INFO] [stdout] 11: 0x5631f0ad8917 - std::panicking::begin_panic_handler::{{closure}}::h471b6bc74904b7b0 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:519:13 [INFO] [stdout] 12: 0x5631f0ad6afc - std::sys_common::backtrace::__rust_end_short_backtrace::h309f5c707f29932f [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:141:18 [INFO] [stdout] 13: 0x5631f0ad8879 - rust_begin_unwind [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:515:5 [INFO] [stdout] 14: 0x5631f0904b51 - core::panicking::panic_fmt::hcf5f6d96e1dd7099 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/panicking.rs:92:14 [INFO] [stdout] 15: 0x5631f0904c43 - core::result::unwrap_failed::he898b02f57993c42 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/result.rs:1355:5 [INFO] [stdout] 16: 0x5631f090be13 - core::result::Result::unwrap::he60fe16e00539bbe [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/result.rs:1037:23 [INFO] [stdout] 17: 0x5631f0912e7c - rustlings::exercise::test::test_exercise_with_output::h0e1fa53344cfea36 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:322:19 [INFO] [stdout] 18: 0x5631f0912d3a - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hb3467120e92a7ed8 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:315:5 [INFO] [stdout] 19: 0x5631f090fc0e - core::ops::function::FnOnce::call_once::ha6a2cf0b7457e23a [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 20: 0x5631f0940953 - core::ops::function::FnOnce::call_once::h99a97b0ff983bd25 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 21: 0x5631f0940953 - test::__rust_begin_short_backtrace::h8fe0d26ed1584e50 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:577:5 [INFO] [stdout] 22: 0x5631f093f3e0 - as core::ops::function::FnOnce>::call_once::he6b90e352f394d8f [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/alloc/src/boxed.rs:1572:9 [INFO] [stdout] 23: 0x5631f093f3e0 - as core::ops::function::FnOnce<()>>::call_once::h1c05475e029700b8 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:347:9 [INFO] [stdout] 24: 0x5631f093f3e0 - std::panicking::try::do_call::he6de943476ae628a [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:401:40 [INFO] [stdout] 25: 0x5631f093f3e0 - std::panicking::try::ha21937b8feb06f89 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:365:19 [INFO] [stdout] 26: 0x5631f093f3e0 - std::panic::catch_unwind::ha79830b3325c9fa6 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:434:14 [INFO] [stdout] 27: 0x5631f093f3e0 - test::run_test_in_process::h1ab180b83ee2d5b5 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:600:18 [INFO] [stdout] 28: 0x5631f093f3e0 - test::run_test::run_test_inner::{{closure}}::h8258ffe088f187a1 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:492:39 [INFO] [stdout] 29: 0x5631f09189a2 - test::run_test::run_test_inner::{{closure}}::hc697b214abd32bc6 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/test/src/lib.rs:519:37 [INFO] [stdout] 30: 0x5631f09189a2 - std::sys_common::backtrace::__rust_begin_short_backtrace::h64de0d3f894854a9 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys_common/backtrace.rs:125:18 [INFO] [stdout] 31: 0x5631f091c5f8 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h1fd98fc86e533ece [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/thread/mod.rs:476:17 [INFO] [stdout] 32: 0x5631f091c5f8 - as core::ops::function::FnOnce<()>>::call_once::h4e2a7abf702e4cfd [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:347:9 [INFO] [stdout] 33: 0x5631f091c5f8 - std::panicking::try::do_call::h4496392321a3c8c0 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:401:40 [INFO] [stdout] 34: 0x5631f091c5f8 - std::panicking::try::hf1e14258e04e8e9a [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panicking.rs:365:19 [INFO] [stdout] 35: 0x5631f091c5f8 - std::panic::catch_unwind::hb72c3777cd55642f [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/panic.rs:434:14 [INFO] [stdout] 36: 0x5631f091c5f8 - std::thread::Builder::spawn_unchecked::{{closure}}::h2d7915a5910e148e [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/thread/mod.rs:475:30 [INFO] [stdout] 37: 0x5631f091c5f8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h83fd2f1ef5be797c [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 38: 0x5631f0addc67 - as core::ops::function::FnOnce>::call_once::ha8b1d5a0092467fc [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/alloc/src/boxed.rs:1572:9 [INFO] [stdout] 39: 0x5631f0addc67 - as core::ops::function::FnOnce>::call_once::h4b9f24ec4e8a879e [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/alloc/src/boxed.rs:1572:9 [INFO] [stdout] 40: 0x5631f0addc67 - std::sys::unix::thread::Thread::new::thread_start::h2a0e98fbc4ab4c32 [INFO] [stdout] at /rustc/432e145bd5a974c5b6f4dd9b352891bd7502b69d/library/std/src/sys/unix/thread.rs:72:17 [INFO] [stdout] 41: 0x7fb304d79609 - start_thread [INFO] [stdout] 42: 0x7fb304ed0293 - 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 0.19s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "f048d36057312860ac60f8b3ac3c8c73fe58eed711cf6dc46babece2f514ee56", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f048d36057312860ac60f8b3ac3c8c73fe58eed711cf6dc46babece2f514ee56", kill_on_drop: false }` [INFO] [stdout] f048d36057312860ac60f8b3ac3c8c73fe58eed711cf6dc46babece2f514ee56