[INFO] cloning repository https://github.com/Idemar/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/Idemar/rustlings-solutions" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIdemar%2Frustlings-solutions", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIdemar%2Frustlings-solutions'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 07c8ba1546688806bb3b057e8423e56e02e98c2c [INFO] testing Idemar/rustlings-solutions against 1.76.0 for beta-1.77-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIdemar%2Frustlings-solutions" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] [stderr] Updating files: 93% (1230/1309) Updating files: 94% (1231/1309) Updating files: 95% (1244/1309) Updating files: 96% (1257/1309) Updating files: 97% (1270/1309) Updating files: 98% (1283/1309) Updating files: 99% (1296/1309) Updating files: 100% (1309/1309) Updating files: 100% (1309/1309), done. [INFO] validating manifest of git repo https://github.com/Idemar/rustlings-solutions on toolchain 1.76.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Idemar/rustlings-solutions [INFO] finished tweaking git repo https://github.com/Idemar/rustlings-solutions [INFO] tweaked toml for git repo https://github.com/Idemar/rustlings-solutions written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Idemar/rustlings-solutions already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] testing Idemar/rustlings-solutions against beta-2024-02-10 for beta-1.77-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIdemar%2Frustlings-solutions" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'... [INFO] [stderr] done. [INFO] [stderr] Updating files: 93% (1230/1309) Updating files: 94% (1231/1309) Updating files: 95% (1244/1309) Updating files: 96% (1257/1309) Updating files: 97% (1270/1309) Updating files: 98% (1283/1309) Updating files: 99% (1296/1309) Updating files: 100% (1309/1309) Updating files: 100% (1309/1309), done. [INFO] validating manifest of git repo https://github.com/Idemar/rustlings-solutions on toolchain beta-2024-02-10 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Idemar/rustlings-solutions [INFO] finished tweaking git repo https://github.com/Idemar/rustlings-solutions [INFO] tweaked toml for git repo https://github.com/Idemar/rustlings-solutions written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Idemar/rustlings-solutions already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2024-02-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 2db7eeaf29b399fbbac6251bfd5b9cd752df23906100f6c1bf4218ed696d7c69 [INFO] running `Command { std: "docker" "start" "-a" "2db7eeaf29b399fbbac6251bfd5b9cd752df23906100f6c1bf4218ed696d7c69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2db7eeaf29b399fbbac6251bfd5b9cd752df23906100f6c1bf4218ed696d7c69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2db7eeaf29b399fbbac6251bfd5b9cd752df23906100f6c1bf4218ed696d7c69", kill_on_drop: false }` [INFO] [stdout] 2db7eeaf29b399fbbac6251bfd5b9cd752df23906100f6c1bf4218ed696d7c69 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dedf34491e733401b358b40084fae4b3f51e4d7cfbb96a457d4250e0af3f32d0 [INFO] running `Command { std: "docker" "start" "-a" "dedf34491e733401b358b40084fae4b3f51e4d7cfbb96a457d4250e0af3f32d0", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.53 [INFO] [stderr] Compiling libc v0.2.140 [INFO] [stderr] Compiling serde_derive v1.0.158 [INFO] [stderr] Compiling serde v1.0.158 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling anstyle v1.0.3 [INFO] [stderr] Compiling portable-atomic v1.4.3 [INFO] [stderr] Compiling anstyle-query v1.0.0 [INFO] [stderr] Compiling hashbrown v0.14.0 [INFO] [stderr] Compiling anstyle-parse v0.2.1 [INFO] [stderr] Compiling winnow v0.5.15 [INFO] [stderr] Compiling memchr v2.6.3 [INFO] [stderr] Compiling serde_json v1.0.94 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling clap_lex v0.5.1 [INFO] [stderr] Compiling walkdir v2.3.3 [INFO] [stderr] Compiling regex-syntax v0.6.29 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stderr] Compiling home v0.5.4 [INFO] [stderr] Compiling anstream v0.5.0 [INFO] [stderr] Compiling clap_builder v4.4.2 [INFO] [stderr] Compiling aho-corasick v0.7.20 [INFO] [stderr] Compiling indexmap v2.0.0 [INFO] [stderr] Compiling quote v1.0.26 [INFO] [stderr] Compiling net2 v0.2.38 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling console v0.15.5 [INFO] [stderr] Compiling filetime v0.2.20 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling syn v2.0.8 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling indicatif v0.17.6 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling regex v1.7.2 [INFO] [stderr] Compiling clap_derive v4.4.2 [INFO] [stderr] Compiling clap v4.4.3 [INFO] [stderr] Compiling serde_spanned v0.6.3 [INFO] [stderr] Compiling toml_datetime v0.6.3 [INFO] [stderr] Compiling toml_edit v0.19.15 [INFO] [stderr] Compiling toml v0.7.8 [INFO] [stderr] Compiling rustlings v5.6.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 20.89s [INFO] running `Command { std: "docker" "inspect" "dedf34491e733401b358b40084fae4b3f51e4d7cfbb96a457d4250e0af3f32d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dedf34491e733401b358b40084fae4b3f51e4d7cfbb96a457d4250e0af3f32d0", kill_on_drop: false }` [INFO] [stdout] dedf34491e733401b358b40084fae4b3f51e4d7cfbb96a457d4250e0af3f32d0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 748f67b6f951720b322c8a896d26c6451e7bcf04e788427325b42062fdd81eaa [INFO] running `Command { std: "docker" "start" "-a" "748f67b6f951720b322c8a896d26c6451e7bcf04e788427325b42062fdd81eaa", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling doc-comment v0.3.3 [INFO] [stderr] Compiling predicates-core v1.0.6 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling termtree v0.4.1 [INFO] [stderr] Compiling difflib v0.4.0 [INFO] [stderr] Compiling regex-automata v0.3.8 [INFO] [stderr] Compiling wait-timeout v0.2.0 [INFO] [stderr] Compiling predicates-tree v1.0.9 [INFO] [stderr] Compiling bstr v1.6.2 [INFO] [stderr] Compiling float-cmp v0.9.0 [INFO] [stderr] Compiling predicates v3.0.3 [INFO] [stderr] Compiling assert_cmd v2.0.12 [INFO] [stderr] Compiling rustlings v5.6.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 3.03s [INFO] running `Command { std: "docker" "inspect" "748f67b6f951720b322c8a896d26c6451e7bcf04e788427325b42062fdd81eaa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "748f67b6f951720b322c8a896d26c6451e7bcf04e788427325b42062fdd81eaa", kill_on_drop: false }` [INFO] [stdout] 748f67b6f951720b322c8a896d26c6451e7bcf04e788427325b42062fdd81eaa [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2024-02-10" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 42a56c1efd35137c554c762a7047ebc23d6defdb12dc8b3890c8ddb9c6b16cac [INFO] running `Command { std: "docker" "start" "-a" "42a56c1efd35137c554c762a7047ebc23d6defdb12dc8b3890c8ddb9c6b16cac", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.05s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-fb45ac55f5f6101a) [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 src/exercise.rs:273:35: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x556ce499ed86 - std::backtrace_rs::backtrace::libunwind::trace::h140b6deb6a45c671 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 [INFO] [stdout] 1: 0x556ce499ed86 - std::backtrace_rs::backtrace::trace_unsynchronized::h8450d7e4e9219aed [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x556ce499ed86 - std::sys_common::backtrace::_print_fmt::hbd28e5e6c6fc3a3f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x556ce499ed86 - ::fmt::hb058f285768cf98e [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x556ce49c7bc0 - core::fmt::rt::Argument::fmt::h87dec7a95127da24 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/fmt/rt.rs:142:9 [INFO] [stdout] 5: 0x556ce49c7bc0 - core::fmt::write::h873f89a91a4832db [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/fmt/mod.rs:1120:17 [INFO] [stdout] 6: 0x556ce499c5bf - std::io::Write::write_fmt::h90f651e9e694a4bb [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/io/mod.rs:1846:15 [INFO] [stdout] 7: 0x556ce499eb64 - std::sys_common::backtrace::_print::h7719d1529d9a9e13 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x556ce499eb64 - std::sys_common::backtrace::print::haa3afbd0e7947108 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x556ce49a08d7 - std::panicking::default_hook::{{closure}}::h10e3de2ec0eaff22 [INFO] [stdout] 10: 0x556ce49a05bd - std::panicking::default_hook::hbdc1b1b7fe073dab [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:289:9 [INFO] [stdout] 11: 0x556ce4810007 - as core::ops::function::Fn>::call::h20f7887d7cd0a330 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 12: 0x556ce4810007 - test::test_main::{{closure}}::hc125a615957b5cb1 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:138:21 [INFO] [stdout] 13: 0x556ce49a0ef6 - as core::ops::function::Fn>::call::h8c19e0590f8443c4 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 14: 0x556ce49a0ef6 - std::panicking::rust_panic_with_hook::hb81692602460473d [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:785:13 [INFO] [stdout] 15: 0x556ce49a0c42 - std::panicking::begin_panic_handler::{{closure}}::h2470593aa2678e9c [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:659:13 [INFO] [stdout] 16: 0x556ce499f286 - std::sys_common::backtrace::__rust_end_short_backtrace::h560bb50225b0562b [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x556ce49a0994 - rust_begin_unwind [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:647:5 [INFO] [stdout] 18: 0x556ce47cbd35 - core::panicking::panic_fmt::h29b6f262f6458dc3 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x556ce47cc313 - core::result::unwrap_failed::h12bc80647957bcdb [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/result.rs:1649:5 [INFO] [stdout] 20: 0x556ce47d75a2 - core::result::Result::unwrap::h5cb2117fadb9e2d7 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/result.rs:1073:23 [INFO] [stdout] 21: 0x556ce47d75a2 - rustlings::exercise::test::test_clean::h9d53d9fad2f2bc50 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:273:9 [INFO] [stdout] 22: 0x556ce47d7527 - rustlings::exercise::test::test_clean::{{closure}}::h26198aa34810c4db [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:272:20 [INFO] [stdout] 23: 0x556ce47d4456 - core::ops::function::FnOnce::call_once::h1752d1d0e8ac0d7c [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x556ce4815bff - core::ops::function::FnOnce::call_once::h692fe6f34484199f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x556ce4815bff - test::__rust_begin_short_backtrace::h48b62e76bd60e2de [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:621:18 [INFO] [stdout] 26: 0x556ce4814a21 - test::run_test_in_process::{{closure}}::h1c68597526ef43db [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:644:60 [INFO] [stdout] 27: 0x556ce4814a21 - as core::ops::function::FnOnce<()>>::call_once::hcae98092997f976b [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x556ce4814a21 - std::panicking::try::do_call::h8d1548c2f5bb535a [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:554:40 [INFO] [stdout] 29: 0x556ce4814a21 - std::panicking::try::hbb7a2054f484688e [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:518:19 [INFO] [stdout] 30: 0x556ce4814a21 - std::panic::catch_unwind::h696d12d9d80497c2 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x556ce4814a21 - test::run_test_in_process::h053367a7217c825b [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:644:27 [INFO] [stdout] 32: 0x556ce4814a21 - test::run_test::{{closure}}::hfa524e9fabcba78e [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:567:43 [INFO] [stdout] 33: 0x556ce47dbe86 - test::run_test::{{closure}}::h2c4d0bb741ef7f9f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:595:41 [INFO] [stdout] 34: 0x556ce47dbe86 - std::sys_common::backtrace::__rust_begin_short_backtrace::h0d2c708415550075 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x556ce47e0e47 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h76e2635840d7293f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 36: 0x556ce47e0e47 - as core::ops::function::FnOnce<()>>::call_once::haa640b67a810a214 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x556ce47e0e47 - std::panicking::try::do_call::h41892e3bc2807ab5 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:554:40 [INFO] [stdout] 38: 0x556ce47e0e47 - std::panicking::try::h861a16d180681c80 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:518:19 [INFO] [stdout] 39: 0x556ce47e0e47 - std::panic::catch_unwind::h8195f9064b1509fa [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x556ce47e0e47 - std::thread::Builder::spawn_unchecked_::{{closure}}::h73cc419da1217371 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 41: 0x556ce47e0e47 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h79dc6499ff073b09 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x556ce49a5425 - as core::ops::function::FnOnce>::call_once::ha718e8cdc51a5182 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 43: 0x556ce49a5425 - as core::ops::function::FnOnce>::call_once::h86072abc877c5474 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 44: 0x556ce49a5425 - std::sys::pal::unix::thread::Thread::new::thread_start::hac4056197c365894 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys/pal/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7fc92fff6ac3 - [INFO] [stdout] 46: 0x7fc930087bf4 - __clone [INFO] [stdout] 47: 0x0 - [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ---- [INFO] [stdout] thread 'exercise::test::test_exercise_with_output' panicked at src/exercise.rs:346:38: [INFO] [stdout] 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/./rmeta7hd21x\"\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 1 previous error\u{1b}[0m\n\n" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x556ce499ed86 - std::backtrace_rs::backtrace::libunwind::trace::h140b6deb6a45c671 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 [INFO] [stdout] 1: 0x556ce499ed86 - std::backtrace_rs::backtrace::trace_unsynchronized::h8450d7e4e9219aed [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x556ce499ed86 - std::sys_common::backtrace::_print_fmt::hbd28e5e6c6fc3a3f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x556ce499ed86 - ::fmt::hb058f285768cf98e [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x556ce49c7bc0 - core::fmt::rt::Argument::fmt::h87dec7a95127da24 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/fmt/rt.rs:142:9 [INFO] [stdout] 5: 0x556ce49c7bc0 - core::fmt::write::h873f89a91a4832db [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/fmt/mod.rs:1120:17 [INFO] [stdout] 6: 0x556ce499c5bf - std::io::Write::write_fmt::h90f651e9e694a4bb [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/io/mod.rs:1846:15 [INFO] [stdout] 7: 0x556ce499eb64 - std::sys_common::backtrace::_print::h7719d1529d9a9e13 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x556ce499eb64 - std::sys_common::backtrace::print::haa3afbd0e7947108 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x556ce49a08d7 - std::panicking::default_hook::{{closure}}::h10e3de2ec0eaff22 [INFO] [stdout] 10: 0x556ce49a05bd - std::panicking::default_hook::hbdc1b1b7fe073dab [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:289:9 [INFO] [stdout] 11: 0x556ce4810007 - as core::ops::function::Fn>::call::h20f7887d7cd0a330 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 12: 0x556ce4810007 - test::test_main::{{closure}}::hc125a615957b5cb1 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:138:21 [INFO] [stdout] 13: 0x556ce49a0ef6 - as core::ops::function::Fn>::call::h8c19e0590f8443c4 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 14: 0x556ce49a0ef6 - std::panicking::rust_panic_with_hook::hb81692602460473d [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:785:13 [INFO] [stdout] 15: 0x556ce49a0c42 - std::panicking::begin_panic_handler::{{closure}}::h2470593aa2678e9c [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:659:13 [INFO] [stdout] 16: 0x556ce499f286 - std::sys_common::backtrace::__rust_end_short_backtrace::h560bb50225b0562b [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x556ce49a0994 - rust_begin_unwind [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:647:5 [INFO] [stdout] 18: 0x556ce47cbd35 - core::panicking::panic_fmt::h29b6f262f6458dc3 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x556ce47cc313 - core::result::unwrap_failed::h12bc80647957bcdb [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/result.rs:1649:5 [INFO] [stdout] 20: 0x556ce47d843a - core::result::Result::unwrap::h0269e4dbf110dc78 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/result.rs:1073:23 [INFO] [stdout] 21: 0x556ce47d843a - rustlings::exercise::test::test_exercise_with_output::h8086b5b091ca3398 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:346:19 [INFO] [stdout] 22: 0x556ce47d8247 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hcda8a8a49a8645f3 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:339:35 [INFO] [stdout] 23: 0x556ce47d43f6 - core::ops::function::FnOnce::call_once::h0e41a6605b854a5f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x556ce4815bff - core::ops::function::FnOnce::call_once::h692fe6f34484199f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x556ce4815bff - test::__rust_begin_short_backtrace::h48b62e76bd60e2de [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:621:18 [INFO] [stdout] 26: 0x556ce4814a21 - test::run_test_in_process::{{closure}}::h1c68597526ef43db [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:644:60 [INFO] [stdout] 27: 0x556ce4814a21 - as core::ops::function::FnOnce<()>>::call_once::hcae98092997f976b [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x556ce4814a21 - std::panicking::try::do_call::h8d1548c2f5bb535a [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:554:40 [INFO] [stdout] 29: 0x556ce4814a21 - std::panicking::try::hbb7a2054f484688e [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:518:19 [INFO] [stdout] 30: 0x556ce4814a21 - std::panic::catch_unwind::h696d12d9d80497c2 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x556ce4814a21 - test::run_test_in_process::h053367a7217c825b [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:644:27 [INFO] [stdout] 32: 0x556ce4814a21 - test::run_test::{{closure}}::hfa524e9fabcba78e [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:567:43 [INFO] [stdout] 33: 0x556ce47dbe86 - test::run_test::{{closure}}::h2c4d0bb741ef7f9f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/test/src/lib.rs:595:41 [INFO] [stdout] 34: 0x556ce47dbe86 - std::sys_common::backtrace::__rust_begin_short_backtrace::h0d2c708415550075 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x556ce47e0e47 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h76e2635840d7293f [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 36: 0x556ce47e0e47 - as core::ops::function::FnOnce<()>>::call_once::haa640b67a810a214 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x556ce47e0e47 - std::panicking::try::do_call::h41892e3bc2807ab5 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:554:40 [INFO] [stdout] 38: 0x556ce47e0e47 - std::panicking::try::h861a16d180681c80 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panicking.rs:518:19 [INFO] [stdout] 39: 0x556ce47e0e47 - std::panic::catch_unwind::h8195f9064b1509fa [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x556ce47e0e47 - std::thread::Builder::spawn_unchecked_::{{closure}}::h73cc419da1217371 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 41: 0x556ce47e0e47 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h79dc6499ff073b09 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x556ce49a5425 - as core::ops::function::FnOnce>::call_once::ha718e8cdc51a5182 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 43: 0x556ce49a5425 - as core::ops::function::FnOnce>::call_once::h86072abc877c5474 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 44: 0x556ce49a5425 - std::sys::pal::unix::thread::Thread::new::thread_start::hac4056197c365894 [INFO] [stdout] at /rustc/f2048098a1ca42a520e7bed68e321a66edc0a1b1/library/std/src/sys/pal/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7fc92fff6ac3 - [INFO] [stdout] 46: 0x7fc930087bf4 - __clone [INFO] [stdout] 47: 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 0.08s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "42a56c1efd35137c554c762a7047ebc23d6defdb12dc8b3890c8ddb9c6b16cac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42a56c1efd35137c554c762a7047ebc23d6defdb12dc8b3890c8ddb9c6b16cac", kill_on_drop: false }` [INFO] [stdout] 42a56c1efd35137c554c762a7047ebc23d6defdb12dc8b3890c8ddb9c6b16cac