[INFO] cloning repository https://github.com/rodmatos/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rodmatos/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frodmatos%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frodmatos%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5ad5abe154265e133bdc2727d919c605d235ee25 [INFO] testing rodmatos/rustlings against 1.64.0 for beta-1.65-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frodmatos%2Frustlings" "/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/rodmatos/rustlings on toolchain 1.64.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.64.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rodmatos/rustlings [INFO] finished tweaking git repo https://github.com/rodmatos/rustlings [INFO] tweaked toml for git repo https://github.com/rodmatos/rustlings written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/rodmatos/rustlings already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.64.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded net2 v0.2.33 [INFO] [stderr] Downloaded winapi-build v0.1.1 [INFO] [stderr] Downloaded cfg-if v0.1.9 [INFO] [stderr] Downloaded ws2_32-sys v0.2.1 [INFO] [stderr] Downloaded toml v0.4.10 [INFO] [stderr] Downloaded scopeguard v1.0.0 [INFO] [stderr] Downloaded redox_termios v0.1.1 [INFO] [stderr] Downloaded console v0.7.7 [INFO] [stderr] Downloaded termion v1.5.2 [INFO] [stderr] Downloaded number_prefix v0.2.8 [INFO] [stderr] Downloaded inotify-sys v0.1.3 [INFO] [stderr] Downloaded kernel32-sys v0.2.2 [INFO] [stderr] Downloaded clap v2.33.0 [INFO] [stderr] Downloaded itoa v0.4.4 [INFO] [stderr] Downloaded serde_json v1.0.39 [INFO] [stderr] Downloaded fuchsia-zircon-sys v0.3.3 [INFO] [stderr] Downloaded rdrand v0.4.0 [INFO] [stderr] Downloaded rand_pcg v0.1.2 [INFO] [stderr] Downloaded atty v0.2.11 [INFO] [stderr] Downloaded rand_os v0.1.3 [INFO] [stderr] Downloaded rand_isaac v0.1.1 [INFO] [stderr] Downloaded treeline v0.1.0 [INFO] [stderr] Downloaded escargot v0.4.0 [INFO] [stderr] Downloaded encode_unicode v0.3.5 [INFO] [stderr] Downloaded quote v0.6.12 [INFO] [stderr] Downloaded serde v1.0.92 [INFO] [stderr] Downloaded bitflags v1.0.4 [INFO] [stderr] Downloaded indicatif v0.10.3 [INFO] [stderr] Downloaded rand_core v0.4.0 [INFO] [stderr] Downloaded predicates-tree v1.0.0 [INFO] [stderr] Downloaded fuchsia-cprng v0.1.1 [INFO] [stderr] Downloaded rand_chacha v0.1.1 [INFO] [stderr] Downloaded rand_xorshift v0.1.1 [INFO] [stderr] Downloaded ryu v0.2.8 [INFO] [stderr] Downloaded rand_jitter v0.1.4 [INFO] [stderr] Downloaded semver v0.9.0 [INFO] [stderr] Downloaded fsevent v0.4.0 [INFO] [stderr] Downloaded numtoa v0.1.0 [INFO] [stderr] Downloaded inotify v0.7.0 [INFO] [stderr] Downloaded clicolors-control v1.0.0 [INFO] [stderr] Downloaded termios v0.3.1 [INFO] [stderr] Downloaded walkdir v2.2.7 [INFO] [stderr] Downloaded console v0.8.0 [INFO] [stderr] Downloaded same-file v1.0.4 [INFO] [stderr] Downloaded rand_core v0.3.1 [INFO] [stderr] 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[stderr] Downloaded unicode-xid v0.1.0 [INFO] [stderr] Downloaded vec_map v0.8.1 [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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 91fff4a4c25630747fdb60a9c187948d3287f9793e7d96b96eaecb305380219d [INFO] running `Command { std: "docker" "start" "-a" "91fff4a4c25630747fdb60a9c187948d3287f9793e7d96b96eaecb305380219d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "91fff4a4c25630747fdb60a9c187948d3287f9793e7d96b96eaecb305380219d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "91fff4a4c25630747fdb60a9c187948d3287f9793e7d96b96eaecb305380219d", kill_on_drop: false }` [INFO] [stdout] 91fff4a4c25630747fdb60a9c187948d3287f9793e7d96b96eaecb305380219d [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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4586e1924c5f6d9dad68852bed395b1ea237803215109dd28ddb4a8168b8e931 [INFO] running `Command { std: "docker" "start" "-a" "4586e1924c5f6d9dad68852bed395b1ea237803215109dd28ddb4a8168b8e931", 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 cfg-if v0.1.9 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Compiling unicode-width v0.1.5 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling ucd-util v0.1.3 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling smallvec v0.6.9 [INFO] [stderr] Compiling utf8-ranges v1.0.2 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling serde v1.0.92 [INFO] [stderr] Compiling lazycell v1.2.1 [INFO] [stderr] Compiling same-file v1.0.4 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling lock_api v0.2.0 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling regex-syntax v0.6.6 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling walkdir v2.2.7 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Compiling aho-corasick v0.7.3 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling clicolors-control v1.0.0 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling termios v0.3.1 [INFO] [stderr] Compiling net2 v0.2.33 [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 quote v0.6.12 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling mio-extras v2.0.5 [INFO] [stderr] Compiling number_prefix v0.2.8 [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 38.00s [INFO] running `Command { std: "docker" "inspect" "4586e1924c5f6d9dad68852bed395b1ea237803215109dd28ddb4a8168b8e931", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4586e1924c5f6d9dad68852bed395b1ea237803215109dd28ddb4a8168b8e931", kill_on_drop: false }` [INFO] [stdout] 4586e1924c5f6d9dad68852bed395b1ea237803215109dd28ddb4a8168b8e931 [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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 361580d95475433dd408e5217cab874156fd8c8fbbcbe073768d858ca3ba7818 [INFO] running `Command { std: "docker" "start" "-a" "361580d95475433dd408e5217cab874156fd8c8fbbcbe073768d858ca3ba7818", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v0.2.8 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling itoa v0.4.4 [INFO] [stderr] Compiling predicates-core v1.0.0 [INFO] [stderr] Compiling normalize-line-endings v0.2.2 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling treeline v0.1.0 [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 9.67s [INFO] running `Command { std: "docker" "inspect" "361580d95475433dd408e5217cab874156fd8c8fbbcbe073768d858ca3ba7818", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "361580d95475433dd408e5217cab874156fd8c8fbbcbe073768d858ca3ba7818", kill_on_drop: false }` [INFO] [stdout] 361580d95475433dd408e5217cab874156fd8c8fbbcbe073768d858ca3ba7818 [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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+1.64.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] b0146546661293db6131ce0fdbe8c0f4bc44f9eb71edf5b9f74f6b5fcf2ae362 [INFO] running `Command { std: "docker" "start" "-a" "b0146546661293db6131ce0fdbe8c0f4bc44f9eb71edf5b9f74f6b5fcf2ae362", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-d27032aa8d54af31) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test exercise::test::test_finished_exercise ... ok [INFO] [stdout] test exercise::test::test_pending_state ... ok [INFO] [stdout] test exercise::test::test_clean ... FAILED [INFO] [stdout] test exercise::test::test_exercise_with_output ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_clean stdout ---- [INFO] [stdout] 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: 0x55d189cef24d - std::backtrace_rs::backtrace::libunwind::trace::h9135f25bc195152c [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x55d189cef24d - std::backtrace_rs::backtrace::trace_unsynchronized::h015ee85be510df51 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55d189cef24d - std::sys_common::backtrace::_print_fmt::h5fad03caa9652a2c [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stdout] 3: 0x55d189cef24d - ::fmt::h2b42ca28d244e5c7 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stdout] 4: 0x55d189d12a5c - core::fmt::write::h401e827d053130ed [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/fmt/mod.rs:1198:17 [INFO] [stdout] 5: 0x55d189cebc81 - std::io::Write::write_fmt::h1da442c9e1df41d6 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/io/mod.rs:1672:15 [INFO] [stdout] 6: 0x55d189cf0d15 - std::sys_common::backtrace::_print::h180c4c706ee1d3fb [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stdout] 7: 0x55d189cf0d15 - std::sys_common::backtrace::print::hd0c35d18765761c9 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stdout] 8: 0x55d189cf0d15 - std::panicking::default_hook::{{closure}}::h1f023310983bc730 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:295:22 [INFO] [stdout] 9: 0x55d189cf09b4 - std::panicking::default_hook::h188fec3334afd5be [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:311:9 [INFO] [stdout] 10: 0x55d189cf12a6 - std::panicking::rust_panic_with_hook::hf26e9d4f97b40096 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:698:17 [INFO] [stdout] 11: 0x55d189cf1197 - std::panicking::begin_panic_handler::{{closure}}::hfab912107608087a [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:588:13 [INFO] [stdout] 12: 0x55d189cef744 - std::sys_common::backtrace::__rust_end_short_backtrace::h434b685ce8d9965b [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stdout] 13: 0x55d189cf0ec9 - rust_begin_unwind [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:584:5 [INFO] [stdout] 14: 0x55d189b118b3 - core::panicking::panic_fmt::ha6dc7f2ab2479463 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/panicking.rs:142:14 [INFO] [stdout] 15: 0x55d189b119a3 - core::result::unwrap_failed::h42ad8e915aa0a906 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/result.rs:1814:5 [INFO] [stdout] 16: 0x55d189b1b9c0 - core::result::Result::unwrap::hec98ffb4a47d7dd0 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/result.rs:1107:23 [INFO] [stdout] 17: 0x55d189b1d429 - rustlings::exercise::test::test_clean::h5e732e7cbba8f128 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:249:9 [INFO] [stdout] 18: 0x55d189b1d3ba - rustlings::exercise::test::test_clean::{{closure}}::h226088e0404d4fab [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:248:5 [INFO] [stdout] 19: 0x55d189b1c20e - core::ops::function::FnOnce::call_once::h4fcedfa95bc6c5d9 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 20: 0x55d189b58383 - core::ops::function::FnOnce::call_once::h2da14387562cd1a6 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 21: 0x55d189b58383 - test::__rust_begin_short_backtrace::h307c198d88e9e51a [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/test/src/lib.rs:572:5 [INFO] [stdout] 22: 0x55d189b5718a - as core::ops::function::FnOnce>::call_once::h42564b04a6d1df41 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/alloc/src/boxed.rs:1935:9 [INFO] [stdout] 23: 0x55d189b5718a - as core::ops::function::FnOnce<()>>::call_once::h286b0e8427b9af31 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 24: 0x55d189b5718a - std::panicking::try::do_call::h0b094c8aa8626e3b [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:492:40 [INFO] [stdout] 25: 0x55d189b5718a - std::panicking::try::h253dd43de0385d2d [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:456:19 [INFO] [stdout] 26: 0x55d189b5718a - std::panic::catch_unwind::h8a89f69958871bf1 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panic.rs:137:14 [INFO] [stdout] 27: 0x55d189b5718a - test::run_test_in_process::h79875496f9bc15c6 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/test/src/lib.rs:595:18 [INFO] [stdout] 28: 0x55d189b5718a - test::run_test::run_test_inner::{{closure}}::hf979093fbdf02646 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/test/src/lib.rs:489:39 [INFO] [stdout] 29: 0x55d189b233bd - test::run_test::run_test_inner::{{closure}}::he01c2dd4903b57d1 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/test/src/lib.rs:516:37 [INFO] [stdout] 30: 0x55d189b233bd - std::sys_common::backtrace::__rust_begin_short_backtrace::hece2f1c514466a0a [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stdout] 31: 0x55d189b28d28 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h658be5979f99b3a5 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/thread/mod.rs:505:17 [INFO] [stdout] 32: 0x55d189b28d28 - as core::ops::function::FnOnce<()>>::call_once::h9dbd94372ee944af [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 33: 0x55d189b28d28 - std::panicking::try::do_call::hff71896f3757c3b2 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:492:40 [INFO] [stdout] 34: 0x55d189b28d28 - std::panicking::try::hbb4c2c2616b6a189 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:456:19 [INFO] [stdout] 35: 0x55d189b28d28 - std::panic::catch_unwind::h72f47810ab7e379e [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panic.rs:137:14 [INFO] [stdout] 36: 0x55d189b28d28 - std::thread::Builder::spawn_unchecked_::{{closure}}::h6331fb85a785812c [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/thread/mod.rs:504:30 [INFO] [stdout] 37: 0x55d189b28d28 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h467656fda03180e5 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 38: 0x55d189cf5cb3 - as core::ops::function::FnOnce>::call_once::h56d5fc072706762b [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/alloc/src/boxed.rs:1935:9 [INFO] [stdout] 39: 0x55d189cf5cb3 - as core::ops::function::FnOnce>::call_once::h41deef8e33b824bb [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/alloc/src/boxed.rs:1935:9 [INFO] [stdout] 40: 0x55d189cf5cb3 - std::sys::unix::thread::Thread::new::thread_start::ha6436304a1170bba [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 41: 0x7fd860d94609 - start_thread [INFO] [stdout] 42: 0x7fd860ee9133 - 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: couldn't create a temp dir: Read-only file system (os error 30) at path \"/opt/rustwide/workdir/./rmeta8In1KB\"\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: 0x55d189cef24d - std::backtrace_rs::backtrace::libunwind::trace::h9135f25bc195152c [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x55d189cef24d - std::backtrace_rs::backtrace::trace_unsynchronized::h015ee85be510df51 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55d189cef24d - std::sys_common::backtrace::_print_fmt::h5fad03caa9652a2c [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stdout] 3: 0x55d189cef24d - ::fmt::h2b42ca28d244e5c7 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stdout] 4: 0x55d189d12a5c - core::fmt::write::h401e827d053130ed [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/fmt/mod.rs:1198:17 [INFO] [stdout] 5: 0x55d189cebc81 - std::io::Write::write_fmt::h1da442c9e1df41d6 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/io/mod.rs:1672:15 [INFO] [stdout] 6: 0x55d189cf0d15 - std::sys_common::backtrace::_print::h180c4c706ee1d3fb [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stdout] 7: 0x55d189cf0d15 - std::sys_common::backtrace::print::hd0c35d18765761c9 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stdout] 8: 0x55d189cf0d15 - std::panicking::default_hook::{{closure}}::h1f023310983bc730 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:295:22 [INFO] [stdout] 9: 0x55d189cf09b4 - std::panicking::default_hook::h188fec3334afd5be [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:311:9 [INFO] [stdout] 10: 0x55d189cf12a6 - std::panicking::rust_panic_with_hook::hf26e9d4f97b40096 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:698:17 [INFO] [stdout] 11: 0x55d189cf1197 - std::panicking::begin_panic_handler::{{closure}}::hfab912107608087a [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:588:13 [INFO] [stdout] 12: 0x55d189cef744 - std::sys_common::backtrace::__rust_end_short_backtrace::h434b685ce8d9965b [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stdout] 13: 0x55d189cf0ec9 - rust_begin_unwind [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:584:5 [INFO] [stdout] 14: 0x55d189b118b3 - core::panicking::panic_fmt::ha6dc7f2ab2479463 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/panicking.rs:142:14 [INFO] [stdout] 15: 0x55d189b119a3 - core::result::unwrap_failed::h42ad8e915aa0a906 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/result.rs:1814:5 [INFO] [stdout] 16: 0x55d189b1ba72 - core::result::Result::unwrap::hf595871e76add13c [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/result.rs:1107:23 [INFO] [stdout] 17: 0x55d189b1e08c - rustlings::exercise::test::test_exercise_with_output::hbeb470a1b6cf06dd [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:322:19 [INFO] [stdout] 18: 0x55d189b1df1a - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h96db8004af16cea2 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:315:5 [INFO] [stdout] 19: 0x55d189b1c2ae - core::ops::function::FnOnce::call_once::hea102e3af893612e [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 20: 0x55d189b58383 - core::ops::function::FnOnce::call_once::h2da14387562cd1a6 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 21: 0x55d189b58383 - test::__rust_begin_short_backtrace::h307c198d88e9e51a [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/test/src/lib.rs:572:5 [INFO] [stdout] 22: 0x55d189b5718a - as core::ops::function::FnOnce>::call_once::h42564b04a6d1df41 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/alloc/src/boxed.rs:1935:9 [INFO] [stdout] 23: 0x55d189b5718a - as core::ops::function::FnOnce<()>>::call_once::h286b0e8427b9af31 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 24: 0x55d189b5718a - std::panicking::try::do_call::h0b094c8aa8626e3b [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:492:40 [INFO] [stdout] 25: 0x55d189b5718a - std::panicking::try::h253dd43de0385d2d [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:456:19 [INFO] [stdout] 26: 0x55d189b5718a - std::panic::catch_unwind::h8a89f69958871bf1 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panic.rs:137:14 [INFO] [stdout] 27: 0x55d189b5718a - test::run_test_in_process::h79875496f9bc15c6 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/test/src/lib.rs:595:18 [INFO] [stdout] 28: 0x55d189b5718a - test::run_test::run_test_inner::{{closure}}::hf979093fbdf02646 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/test/src/lib.rs:489:39 [INFO] [stdout] 29: 0x55d189b233bd - test::run_test::run_test_inner::{{closure}}::he01c2dd4903b57d1 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/test/src/lib.rs:516:37 [INFO] [stdout] 30: 0x55d189b233bd - std::sys_common::backtrace::__rust_begin_short_backtrace::hece2f1c514466a0a [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stdout] 31: 0x55d189b28d28 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h658be5979f99b3a5 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/thread/mod.rs:505:17 [INFO] [stdout] 32: 0x55d189b28d28 - as core::ops::function::FnOnce<()>>::call_once::h9dbd94372ee944af [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 33: 0x55d189b28d28 - std::panicking::try::do_call::hff71896f3757c3b2 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:492:40 [INFO] [stdout] 34: 0x55d189b28d28 - std::panicking::try::hbb4c2c2616b6a189 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panicking.rs:456:19 [INFO] [stdout] 35: 0x55d189b28d28 - std::panic::catch_unwind::h72f47810ab7e379e [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/panic.rs:137:14 [INFO] [stdout] 36: 0x55d189b28d28 - std::thread::Builder::spawn_unchecked_::{{closure}}::h6331fb85a785812c [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/thread/mod.rs:504:30 [INFO] [stdout] 37: 0x55d189b28d28 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h467656fda03180e5 [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 38: 0x55d189cf5cb3 - as core::ops::function::FnOnce>::call_once::h56d5fc072706762b [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/alloc/src/boxed.rs:1935:9 [INFO] [stdout] 39: 0x55d189cf5cb3 - as core::ops::function::FnOnce>::call_once::h41deef8e33b824bb [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/alloc/src/boxed.rs:1935:9 [INFO] [stdout] 40: 0x55d189cf5cb3 - std::sys::unix::thread::Thread::new::thread_start::ha6436304a1170bba [INFO] [stdout] at /rustc/a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 41: 0x7fd860d94609 - start_thread [INFO] [stdout] 42: 0x7fd860ee9133 - 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] [stderr] error: test failed, to rerun pass '--bin rustlings' [INFO] running `Command { std: "docker" "inspect" "b0146546661293db6131ce0fdbe8c0f4bc44f9eb71edf5b9f74f6b5fcf2ae362", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b0146546661293db6131ce0fdbe8c0f4bc44f9eb71edf5b9f74f6b5fcf2ae362", kill_on_drop: false }` [INFO] [stdout] b0146546661293db6131ce0fdbe8c0f4bc44f9eb71edf5b9f74f6b5fcf2ae362