[INFO] cloning repository https://github.com/SammRosenthal/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SammRosenthal/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSammRosenthal%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSammRosenthal%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 2cd015ddee22f4dec6d0629f80a6d2eed04005dd [INFO] testing SammRosenthal/rustlings/2cd015ddee22f4dec6d0629f80a6d2eed04005dd against 1.76.0 for beta-1.77-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSammRosenthal%2Frustlings" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/SammRosenthal/rustlings 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/SammRosenthal/rustlings [INFO] finished tweaking git repo https://github.com/SammRosenthal/rustlings [INFO] tweaked toml for git repo https://github.com/SammRosenthal/rustlings written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/SammRosenthal/rustlings 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 961f9ebced33c7e83b84051c3983eb5a93c5328e82f387a04c1128b7edd08036 [INFO] running `Command { std: "docker" "start" "-a" "961f9ebced33c7e83b84051c3983eb5a93c5328e82f387a04c1128b7edd08036", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "961f9ebced33c7e83b84051c3983eb5a93c5328e82f387a04c1128b7edd08036", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "961f9ebced33c7e83b84051c3983eb5a93c5328e82f387a04c1128b7edd08036", kill_on_drop: false }` [INFO] [stdout] 961f9ebced33c7e83b84051c3983eb5a93c5328e82f387a04c1128b7edd08036 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 36f16a8c21e947ba8d0f60a824af387d4a4842006a10a81388623b5abccb10a7 [INFO] running `Command { std: "docker" "start" "-a" "36f16a8c21e947ba8d0f60a824af387d4a4842006a10a81388623b5abccb10a7", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling smallvec v1.6.1 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling instant v0.1.10 [INFO] [stderr] Compiling lock_api v0.4.4 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling parking_lot_core v0.8.3 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling clicolors-control v1.0.1 [INFO] [stderr] Compiling termios v0.3.3 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling number_prefix v0.2.8 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling console v0.14.1 [INFO] [stderr] Compiling console v0.7.7 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling indicatif v0.10.3 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v4.6.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.37s [INFO] running `Command { std: "docker" "inspect" "36f16a8c21e947ba8d0f60a824af387d4a4842006a10a81388623b5abccb10a7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "36f16a8c21e947ba8d0f60a824af387d4a4842006a10a81388623b5abccb10a7", kill_on_drop: false }` [INFO] [stdout] 36f16a8c21e947ba8d0f60a824af387d4a4842006a10a81388623b5abccb10a7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+1.76.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 42706fbe19429c6ea91bc49e6207e12f2cca4a843bddecdab0aa8336e2ff3401 [INFO] running `Command { std: "docker" "start" "-a" "42706fbe19429c6ea91bc49e6207e12f2cca4a843bddecdab0aa8336e2ff3401", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling predicates-tree v1.0.3 [INFO] [stderr] Compiling predicates v1.0.8 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v4.6.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 2.72s [INFO] running `Command { std: "docker" "inspect" "42706fbe19429c6ea91bc49e6207e12f2cca4a843bddecdab0aa8336e2ff3401", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "42706fbe19429c6ea91bc49e6207e12f2cca4a843bddecdab0aa8336e2ff3401", kill_on_drop: false }` [INFO] [stdout] 42706fbe19429c6ea91bc49e6207e12f2cca4a843bddecdab0aa8336e2ff3401 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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" "+1.76.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f45d7360b32eee9f8000be9c1282d7a7bd114a3bb335039e8562ed56cde606ac [INFO] running `Command { std: "docker" "start" "-a" "f45d7360b32eee9f8000be9c1282d7a7bd114a3bb335039e8562ed56cde606ac", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-f2985738c827b1d2) [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:270:36: [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: 0x55aa1dd6ab76 - std::backtrace_rs::backtrace::libunwind::trace::hbee8a7973eeb6c93 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 [INFO] [stdout] 1: 0x55aa1dd6ab76 - std::backtrace_rs::backtrace::trace_unsynchronized::hc8ac75eea3aa6899 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55aa1dd6ab76 - std::sys_common::backtrace::_print_fmt::hc7f3e3b5298b1083 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x55aa1dd6ab76 - ::fmt::hbb235daedd7c6190 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x55aa1dd93b80 - core::fmt::rt::Argument::fmt::h76c38a80d925a410 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/fmt/rt.rs:142:9 [INFO] [stdout] 5: 0x55aa1dd93b80 - core::fmt::write::h3ed6aeaa977c8e45 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/fmt/mod.rs:1120:17 [INFO] [stdout] 6: 0x55aa1dd685bf - std::io::Write::write_fmt::h1299aa7741865f2b [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/io/mod.rs:1810:15 [INFO] [stdout] 7: 0x55aa1dd6a954 - std::sys_common::backtrace::_print::h5d645a07e0fcfdbb [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x55aa1dd6a954 - std::sys_common::backtrace::print::h85035a511aafe7a8 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x55aa1dd6c6c7 - std::panicking::default_hook::{{closure}}::hcce8cea212785a25 [INFO] [stdout] 10: 0x55aa1dd6c3ad - std::panicking::default_hook::hf5fcb0f213fe709a [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:289:9 [INFO] [stdout] 11: 0x55aa1dbe95d7 - as core::ops::function::Fn>::call::h60265c2dfa87ee34 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 12: 0x55aa1dbe95d7 - test::test_main::{{closure}}::h77865bd3127078c6 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:138:21 [INFO] [stdout] 13: 0x55aa1dd6cce6 - as core::ops::function::Fn>::call::hbc5ccf4eb663e1e5 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 14: 0x55aa1dd6cce6 - std::panicking::rust_panic_with_hook::h095fccf1dc9379ee [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:783:13 [INFO] [stdout] 15: 0x55aa1dd6ca32 - std::panicking::begin_panic_handler::{{closure}}::h032ba12139b353db [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:657:13 [INFO] [stdout] 16: 0x55aa1dd6b076 - std::sys_common::backtrace::__rust_end_short_backtrace::h9259bc2ff8fd0f76 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x55aa1dd6c790 - rust_begin_unwind [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:645:5 [INFO] [stdout] 18: 0x55aa1dba22a5 - core::panicking::panic_fmt::h784f20a50eaab275 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x55aa1dba2883 - core::result::unwrap_failed::h03d8a5018196e1cd [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/result.rs:1649:5 [INFO] [stdout] 20: 0x55aa1dba50cb - core::result::Result::unwrap::h181ba80d849b67b5 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/result.rs:1073:23 [INFO] [stdout] 21: 0x55aa1dba9a61 - rustlings::exercise::test::test_clean::h4c7ddfba9488067c [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:270:9 [INFO] [stdout] 22: 0x55aa1dba99e7 - rustlings::exercise::test::test_clean::{{closure}}::h6a65b4f5131e5837 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:20 [INFO] [stdout] 23: 0x55aa1dba4166 - core::ops::function::FnOnce::call_once::h8c8b9276baf2c310 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x55aa1dbeeeaf - core::ops::function::FnOnce::call_once::h8dc6907944022cf6 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x55aa1dbeeeaf - test::__rust_begin_short_backtrace::haae1a87433f1efb3 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:627:18 [INFO] [stdout] 26: 0x55aa1dbedc31 - test::run_test_in_process::{{closure}}::h8c7decfa7c14e152 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:650:60 [INFO] [stdout] 27: 0x55aa1dbedc31 - as core::ops::function::FnOnce<()>>::call_once::h19e6ff056d9d21e9 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x55aa1dbedc31 - std::panicking::try::do_call::h89c848fcaa37c035 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:552:40 [INFO] [stdout] 29: 0x55aa1dbedc31 - std::panicking::try::h57ab3dc74e2839b8 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:516:19 [INFO] [stdout] 30: 0x55aa1dbedc31 - std::panic::catch_unwind::hfb6a1b1abc120fb9 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x55aa1dbedc31 - test::run_test_in_process::h5ae2f9875edd562d [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:650:27 [INFO] [stdout] 32: 0x55aa1dbedc31 - test::run_test::{{closure}}::h35d7300d8928a067 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:573:43 [INFO] [stdout] 33: 0x55aa1dbb4f66 - test::run_test::{{closure}}::h7525ced405d23d1b [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:601:41 [INFO] [stdout] 34: 0x55aa1dbb4f66 - std::sys_common::backtrace::__rust_begin_short_backtrace::h4e7db78ce05afad8 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x55aa1dbb9fc7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hcfbcb64f1a1b3482 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 36: 0x55aa1dbb9fc7 - as core::ops::function::FnOnce<()>>::call_once::h9d89c5c4108bd689 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x55aa1dbb9fc7 - std::panicking::try::do_call::h8a4869bc94ec50c9 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:552:40 [INFO] [stdout] 38: 0x55aa1dbb9fc7 - std::panicking::try::h9a576f20ff81ac30 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:516:19 [INFO] [stdout] 39: 0x55aa1dbb9fc7 - std::panic::catch_unwind::hbcb4e3f860ef9830 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x55aa1dbb9fc7 - std::thread::Builder::spawn_unchecked_::{{closure}}::h93c79a6be1505948 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 41: 0x55aa1dbb9fc7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h426d96740c81bdaf [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x55aa1dd71925 - as core::ops::function::FnOnce>::call_once::h12de4fc57affb195 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 43: 0x55aa1dd71925 - as core::ops::function::FnOnce>::call_once::h3c619f45059d5cf1 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 44: 0x55aa1dd71925 - std::sys::unix::thread::Thread::new::thread_start::hbac657605e4b7389 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7f6e31ad1ac3 - [INFO] [stdout] 46: 0x7f6e31b62bf4 - __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:343:38: [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/./rmetaNb7m5M\"\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: 0x55aa1dd6ab76 - std::backtrace_rs::backtrace::libunwind::trace::hbee8a7973eeb6c93 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 [INFO] [stdout] 1: 0x55aa1dd6ab76 - std::backtrace_rs::backtrace::trace_unsynchronized::hc8ac75eea3aa6899 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55aa1dd6ab76 - std::sys_common::backtrace::_print_fmt::hc7f3e3b5298b1083 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:68:5 [INFO] [stdout] 3: 0x55aa1dd6ab76 - ::fmt::hbb235daedd7c6190 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x55aa1dd93b80 - core::fmt::rt::Argument::fmt::h76c38a80d925a410 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/fmt/rt.rs:142:9 [INFO] [stdout] 5: 0x55aa1dd93b80 - core::fmt::write::h3ed6aeaa977c8e45 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/fmt/mod.rs:1120:17 [INFO] [stdout] 6: 0x55aa1dd685bf - std::io::Write::write_fmt::h1299aa7741865f2b [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/io/mod.rs:1810:15 [INFO] [stdout] 7: 0x55aa1dd6a954 - std::sys_common::backtrace::_print::h5d645a07e0fcfdbb [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x55aa1dd6a954 - std::sys_common::backtrace::print::h85035a511aafe7a8 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x55aa1dd6c6c7 - std::panicking::default_hook::{{closure}}::hcce8cea212785a25 [INFO] [stdout] 10: 0x55aa1dd6c3ad - std::panicking::default_hook::hf5fcb0f213fe709a [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:289:9 [INFO] [stdout] 11: 0x55aa1dbe95d7 - as core::ops::function::Fn>::call::h60265c2dfa87ee34 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 12: 0x55aa1dbe95d7 - test::test_main::{{closure}}::h77865bd3127078c6 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:138:21 [INFO] [stdout] 13: 0x55aa1dd6cce6 - as core::ops::function::Fn>::call::hbc5ccf4eb663e1e5 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2029:9 [INFO] [stdout] 14: 0x55aa1dd6cce6 - std::panicking::rust_panic_with_hook::h095fccf1dc9379ee [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:783:13 [INFO] [stdout] 15: 0x55aa1dd6ca32 - std::panicking::begin_panic_handler::{{closure}}::h032ba12139b353db [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:657:13 [INFO] [stdout] 16: 0x55aa1dd6b076 - std::sys_common::backtrace::__rust_end_short_backtrace::h9259bc2ff8fd0f76 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:171:18 [INFO] [stdout] 17: 0x55aa1dd6c790 - rust_begin_unwind [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:645:5 [INFO] [stdout] 18: 0x55aa1dba22a5 - core::panicking::panic_fmt::h784f20a50eaab275 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x55aa1dba2883 - core::result::unwrap_failed::h03d8a5018196e1cd [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/result.rs:1649:5 [INFO] [stdout] 20: 0x55aa1dba5251 - core::result::Result::unwrap::h5413cb7ef06ce799 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/result.rs:1073:23 [INFO] [stdout] 21: 0x55aa1dbaa738 - rustlings::exercise::test::test_exercise_with_output::h7354cf7b84c24703 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:343:19 [INFO] [stdout] 22: 0x55aa1dbaa5d7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hc164c102636f1694 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:336:35 [INFO] [stdout] 23: 0x55aa1dba4036 - core::ops::function::FnOnce::call_once::h1254d365c1afea1e [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x55aa1dbeeeaf - core::ops::function::FnOnce::call_once::h8dc6907944022cf6 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x55aa1dbeeeaf - test::__rust_begin_short_backtrace::haae1a87433f1efb3 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:627:18 [INFO] [stdout] 26: 0x55aa1dbedc31 - test::run_test_in_process::{{closure}}::h8c7decfa7c14e152 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:650:60 [INFO] [stdout] 27: 0x55aa1dbedc31 - as core::ops::function::FnOnce<()>>::call_once::h19e6ff056d9d21e9 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x55aa1dbedc31 - std::panicking::try::do_call::h89c848fcaa37c035 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:552:40 [INFO] [stdout] 29: 0x55aa1dbedc31 - std::panicking::try::h57ab3dc74e2839b8 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:516:19 [INFO] [stdout] 30: 0x55aa1dbedc31 - std::panic::catch_unwind::hfb6a1b1abc120fb9 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x55aa1dbedc31 - test::run_test_in_process::h5ae2f9875edd562d [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:650:27 [INFO] [stdout] 32: 0x55aa1dbedc31 - test::run_test::{{closure}}::h35d7300d8928a067 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:573:43 [INFO] [stdout] 33: 0x55aa1dbb4f66 - test::run_test::{{closure}}::h7525ced405d23d1b [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/test/src/lib.rs:601:41 [INFO] [stdout] 34: 0x55aa1dbb4f66 - std::sys_common::backtrace::__rust_begin_short_backtrace::h4e7db78ce05afad8 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys_common/backtrace.rs:155:18 [INFO] [stdout] 35: 0x55aa1dbb9fc7 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hcfbcb64f1a1b3482 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 36: 0x55aa1dbb9fc7 - as core::ops::function::FnOnce<()>>::call_once::h9d89c5c4108bd689 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x55aa1dbb9fc7 - std::panicking::try::do_call::h8a4869bc94ec50c9 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:552:40 [INFO] [stdout] 38: 0x55aa1dbb9fc7 - std::panicking::try::h9a576f20ff81ac30 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panicking.rs:516:19 [INFO] [stdout] 39: 0x55aa1dbb9fc7 - std::panic::catch_unwind::hbcb4e3f860ef9830 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x55aa1dbb9fc7 - std::thread::Builder::spawn_unchecked_::{{closure}}::h93c79a6be1505948 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 41: 0x55aa1dbb9fc7 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h426d96740c81bdaf [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x55aa1dd71925 - as core::ops::function::FnOnce>::call_once::h12de4fc57affb195 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 43: 0x55aa1dd71925 - as core::ops::function::FnOnce>::call_once::h3c619f45059d5cf1 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/alloc/src/boxed.rs:2015:9 [INFO] [stdout] 44: 0x55aa1dd71925 - std::sys::unix::thread::Thread::new::thread_start::hbac657605e4b7389 [INFO] [stdout] at /rustc/07dca489ac2d933c78d3c5158e3f43beefeb02ce/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7f6e31ad1ac3 - [INFO] [stdout] 46: 0x7f6e31b62bf4 - __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 0.09s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "f45d7360b32eee9f8000be9c1282d7a7bd114a3bb335039e8562ed56cde606ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f45d7360b32eee9f8000be9c1282d7a7bd114a3bb335039e8562ed56cde606ac", kill_on_drop: false }` [INFO] [stdout] f45d7360b32eee9f8000be9c1282d7a7bd114a3bb335039e8562ed56cde606ac