[INFO] cloning repository https://github.com/diego-jamie-stream/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/diego-jamie-stream/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiego-jamie-stream%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiego-jamie-stream%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] eea234322262f04163567282e7f068f8439367ee [INFO] testing diego-jamie-stream/rustlings against master#9847c6406dc8182abb417b69000fcd0bc5f4a1b7 for pr-115315-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiego-jamie-stream%2Frustlings" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/diego-jamie-stream/rustlings on toolchain 9847c6406dc8182abb417b69000fcd0bc5f4a1b7 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9847c6406dc8182abb417b69000fcd0bc5f4a1b7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/diego-jamie-stream/rustlings [INFO] finished tweaking git repo https://github.com/diego-jamie-stream/rustlings [INFO] tweaked toml for git repo https://github.com/diego-jamie-stream/rustlings written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/diego-jamie-stream/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" "+9847c6406dc8182abb417b69000fcd0bc5f4a1b7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded lazy_static v1.4.0 [INFO] [stderr] Downloaded predicates-core v1.0.2 [INFO] [stderr] Downloaded float-cmp v0.8.0 [INFO] [stderr] Downloaded miow v0.2.2 [INFO] [stderr] Downloaded quote v1.0.9 [INFO] [stderr] Downloaded syn v1.0.75 [INFO] [stderr] Downloaded serde_derive v1.0.129 [INFO] [stderr] Downloaded iovec v0.1.4 [INFO] [stderr] Downloaded unicode-width v0.1.8 [INFO] [stderr] Downloaded cfg-if v0.1.10 [INFO] [stderr] Downloaded mio-extras v2.0.6 [INFO] [stderr] Downloaded terminal_size v0.1.17 [INFO] [stderr] Downloaded redox_syscall v0.2.10 [INFO] [stderr] Downloaded kernel32-sys v0.2.2 [INFO] [stderr] Downloaded winapi-util v0.1.5 [INFO] [stderr] Downloaded heck v0.3.3 [INFO] [stderr] Downloaded ryu v1.0.5 [INFO] [stderr] Downloaded bitflags v1.3.2 [INFO] [stderr] Downloaded indicatif v0.16.2 [INFO] [stderr] Downloaded toml v0.5.9 [INFO] [stderr] Downloaded aho-corasick v0.7.18 [INFO] [stderr] Downloaded regex v1.5.5 [INFO] [stderr] Downloaded regex-syntax v0.6.25 [INFO] [stderr] Downloaded winapi v0.3.9 [INFO] [stderr] Downloaded winapi-i686-pc-windows-gnu v0.4.0 [INFO] [stderr] Downloaded winapi-x86_64-pc-windows-gnu v0.4.0 [INFO] [stderr] Downloaded libc v0.2.100 [INFO] [stderr] Downloaded winapi v0.2.8 [INFO] [stderr] Downloaded serde_json v1.0.81 [INFO] [stderr] Downloaded serde v1.0.129 [INFO] [stderr] Downloaded mio v0.6.23 [INFO] [stderr] Downloaded unicode-segmentation v1.8.0 [INFO] [stderr] Downloaded proc-macro2 v1.0.28 [INFO] [stderr] Downloaded num-traits v0.2.14 [INFO] [stderr] Downloaded difference v2.0.0 [INFO] [stderr] Downloaded once_cell v1.10.0 [INFO] [stderr] Downloaded notify v4.0.17 [INFO] [stderr] Downloaded memchr v2.4.1 [INFO] [stderr] Downloaded cfg-if v1.0.0 [INFO] [stderr] Downloaded walkdir v2.3.2 [INFO] [stderr] Downloaded fuchsia-zircon v0.3.3 [INFO] [stderr] Downloaded log v0.4.14 [INFO] [stderr] Downloaded argh_derive v0.1.5 [INFO] [stderr] Downloaded escargot v0.4.0 [INFO] [stderr] Downloaded assert_cmd v0.11.1 [INFO] [stderr] Downloaded glob v0.3.0 [INFO] [stderr] Downloaded encode_unicode v0.3.6 [INFO] [stderr] Downloaded console v0.15.0 [INFO] [stderr] Downloaded lazycell v1.3.0 [INFO] [stderr] Downloaded net2 v0.2.37 [INFO] [stderr] Downloaded autocfg v1.0.1 [INFO] [stderr] Downloaded predicates v1.0.8 [INFO] [stderr] Downloaded same-file v1.0.6 [INFO] [stderr] Downloaded normalize-line-endings v0.3.0 [INFO] [stderr] Downloaded inotify v0.7.1 [INFO] [stderr] Downloaded number_prefix v0.4.0 [INFO] [stderr] Downloaded filetime v0.2.15 [INFO] [stderr] Downloaded fuchsia-zircon-sys v0.3.3 [INFO] [stderr] Downloaded winapi-build v0.1.1 [INFO] [stderr] Downloaded argh v0.1.5 [INFO] [stderr] Downloaded predicates-tree v1.0.3 [INFO] [stderr] Downloaded inotify-sys v0.1.5 [INFO] [stderr] Downloaded itoa v1.0.2 [INFO] [stderr] Downloaded unicode-xid v0.2.2 [INFO] [stderr] Downloaded ws2_32-sys v0.2.1 [INFO] [stderr] Downloaded slab v0.4.4 [INFO] [stderr] Downloaded argh_shared v0.1.5 [INFO] [stderr] Downloaded treeline v0.1.0 [INFO] [stderr] Downloaded home v0.5.3 [INFO] [stderr] Downloaded fsevent v0.4.0 [INFO] [stderr] Downloaded fsevent-sys v2.0.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f5e78b491441a5b9644e276a59809eedfadf4ee1de96655588122b3a64cb522c" "/opt/rustwide/cargo-home/bin/cargo" "+9847c6406dc8182abb417b69000fcd0bc5f4a1b7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 66fe2c0e261a91411ad72e3dc8a5e13c65ea83f86f1eddede828ca784bd3b1ce [INFO] running `Command { std: "docker" "start" "-a" "66fe2c0e261a91411ad72e3dc8a5e13c65ea83f86f1eddede828ca784bd3b1ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "66fe2c0e261a91411ad72e3dc8a5e13c65ea83f86f1eddede828ca784bd3b1ce", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "66fe2c0e261a91411ad72e3dc8a5e13c65ea83f86f1eddede828ca784bd3b1ce", kill_on_drop: false }` [INFO] [stdout] 66fe2c0e261a91411ad72e3dc8a5e13c65ea83f86f1eddede828ca784bd3b1ce [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f5e78b491441a5b9644e276a59809eedfadf4ee1de96655588122b3a64cb522c" "/opt/rustwide/cargo-home/bin/cargo" "+9847c6406dc8182abb417b69000fcd0bc5f4a1b7" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 5d9f7310e3e3a33fe70519863abb863d0b8d1206c490a595c45b887d0319582c [INFO] running `Command { std: "docker" "start" "-a" "5d9f7310e3e3a33fe70519863abb863d0b8d1206c490a595c45b887d0319582c", 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling itoa v1.0.2 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling home v0.5.3 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling regex v1.5.5 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling console v0.15.0 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.5.9 [INFO] [stderr] Compiling rustlings v5.4.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 03s [INFO] running `Command { std: "docker" "inspect" "5d9f7310e3e3a33fe70519863abb863d0b8d1206c490a595c45b887d0319582c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5d9f7310e3e3a33fe70519863abb863d0b8d1206c490a595c45b887d0319582c", kill_on_drop: false }` [INFO] [stdout] 5d9f7310e3e3a33fe70519863abb863d0b8d1206c490a595c45b887d0319582c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f5e78b491441a5b9644e276a59809eedfadf4ee1de96655588122b3a64cb522c" "/opt/rustwide/cargo-home/bin/cargo" "+9847c6406dc8182abb417b69000fcd0bc5f4a1b7" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9b22fdb02bdca1009588ddca3b4a40a963a0d5c7da0b6c825f3866f38e81f257 [INFO] running `Command { std: "docker" "start" "-a" "9b22fdb02bdca1009588ddca3b4a40a963a0d5c7da0b6c825f3866f38e81f257", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling predicates-tree v1.0.3 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling predicates v1.0.8 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v5.4.1 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 8.59s [INFO] running `Command { std: "docker" "inspect" "9b22fdb02bdca1009588ddca3b4a40a963a0d5c7da0b6c825f3866f38e81f257", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9b22fdb02bdca1009588ddca3b4a40a963a0d5c7da0b6c825f3866f38e81f257", kill_on_drop: false }` [INFO] [stdout] 9b22fdb02bdca1009588ddca3b4a40a963a0d5c7da0b6c825f3866f38e81f257 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:f5e78b491441a5b9644e276a59809eedfadf4ee1de96655588122b3a64cb522c" "/opt/rustwide/cargo-home/bin/cargo" "+9847c6406dc8182abb417b69000fcd0bc5f4a1b7" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 2f11c3d30baa6a056335f8c60079d286e2e559e9630c96e0ba76196107d68552 [INFO] running `Command { std: "docker" "start" "-a" "2f11c3d30baa6a056335f8c60079d286e2e559e9630c96e0ba76196107d68552", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-4e27a75e189bfcd9) [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:273:36: [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: 0x55e2880a3b4c - std::backtrace_rs::backtrace::libunwind::trace::h65eb8e20c006aa9e [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x55e2880a3b4c - std::backtrace_rs::backtrace::trace_unsynchronized::h48fcc78eeed9f9f5 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55e2880a3b4c - std::sys_common::backtrace::_print_fmt::h4de84f79b39f94f9 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x55e2880a3b4c - ::fmt::hc5c23e344c0312a6 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x55e2880cdbec - core::fmt::rt::Argument::fmt::hf84c0bcce93f881b [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/fmt/rt.rs:138:9 [INFO] [stdout] 5: 0x55e2880cdbec - core::fmt::write::h48b9dc51e7cef14e [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/fmt/mod.rs:1094:21 [INFO] [stdout] 6: 0x55e2880a0ade - std::io::Write::write_fmt::h17325dc81ee2532a [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/io/mod.rs:1714:15 [INFO] [stdout] 7: 0x55e2880a3934 - std::sys_common::backtrace::_print::h3f6e9b5870505902 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x55e2880a3934 - std::sys_common::backtrace::print::hf4ff2c77afc708a8 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x55e2880a590a - std::panicking::panic_hook_with_disk_dump::{{closure}}::h5df80038ee5c1ba2 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:280:22 [INFO] [stdout] 10: 0x55e2880a54cd - std::panicking::panic_hook_with_disk_dump::h2ebfc37b7f15280d [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:311:9 [INFO] [stdout] 11: 0x55e287f2597c - as core::ops::function::Fn>::call::h22fa6063f6436d7a [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/alloc/src/boxed.rs:2021:9 [INFO] [stdout] 12: 0x55e287f2597c - test::test_main::{{closure}}::he25a13dc06806be3 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/test/src/lib.rs:136:21 [INFO] [stdout] 13: 0x55e2880a60a3 - as core::ops::function::Fn>::call::h1342d60d1b251964 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/alloc/src/boxed.rs:2021:9 [INFO] [stdout] 14: 0x55e2880a60a3 - std::panicking::rust_panic_with_hook::h484e3bcc6b0f7418 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:757:13 [INFO] [stdout] 15: 0x55e2880a5e11 - std::panicking::begin_panic_handler::{{closure}}::h708225874d7b3fb6 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:631:13 [INFO] [stdout] 16: 0x55e2880a4076 - std::sys_common::backtrace::__rust_end_short_backtrace::h7ffceb2d6c1b88c3 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/sys_common/backtrace.rs:170:18 [INFO] [stdout] 17: 0x55e2880a5b52 - rust_begin_unwind [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:619:5 [INFO] [stdout] 18: 0x55e287edca55 - core::panicking::panic_fmt::h4a81493cb539dcdc [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x55e287edcfca - core::result::unwrap_failed::h65c6c761a43f4ea2 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/result.rs:1652:5 [INFO] [stdout] 20: 0x55e287edfb5b - core::result::Result::unwrap::h2b30f6cbb97fb707 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/result.rs:1077:23 [INFO] [stdout] 21: 0x55e287ee77c1 - rustlings::exercise::test::test_clean::hb4dad70778309504 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:273:9 [INFO] [stdout] 22: 0x55e287ee7747 - rustlings::exercise::test::test_clean::{{closure}}::hf0e333b2f8df05e5 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:272:21 [INFO] [stdout] 23: 0x55e287ede4b6 - core::ops::function::FnOnce::call_once::h27a15f900b9d784f [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x55e287f2aaaf - core::ops::function::FnOnce::call_once::hc27e1c2667c8aa71 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x55e287f2aaaf - test::__rust_begin_short_backtrace::h55de90dacbf8ef3c [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/test/src/lib.rs:626:18 [INFO] [stdout] 26: 0x55e287f29a9e - test::run_test_in_process::{{closure}}::hb181c1aecdf11d58 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/test/src/lib.rs:649:60 [INFO] [stdout] 27: 0x55e287f29a9e - as core::ops::function::FnOnce<()>>::call_once::h0db27a7e5e64f170 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 28: 0x55e287f29a9e - std::panicking::try::do_call::h7fd93b6611e6de6d [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:526:40 [INFO] [stdout] 29: 0x55e287f29a9e - std::panicking::try::h9aa252a7c0ecba88 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:490:19 [INFO] [stdout] 30: 0x55e287f29a9e - std::panic::catch_unwind::hae35f1fe8aef0491 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x55e287f29a9e - test::run_test_in_process::hd1a29c69f3bd4b8e [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/test/src/lib.rs:649:27 [INFO] [stdout] 32: 0x55e287f29a9e - test::run_test::{{closure}}::h3c426115a011de61 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/test/src/lib.rs:572:43 [INFO] [stdout] 33: 0x55e287ef2223 - test::run_test::{{closure}}::h49e8b007df726a97 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/test/src/lib.rs:600:41 [INFO] [stdout] 34: 0x55e287ef2223 - std::sys_common::backtrace::__rust_begin_short_backtrace::h8c26eb6524e3b3fa [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/sys_common/backtrace.rs:154:18 [INFO] [stdout] 35: 0x55e287ef74bb - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::haf47dc1dcc2ed066 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 36: 0x55e287ef74bb - as core::ops::function::FnOnce<()>>::call_once::h10e053f57fbe321c [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 37: 0x55e287ef74bb - std::panicking::try::do_call::hdefdb16a4cf1ad52 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:526:40 [INFO] [stdout] 38: 0x55e287ef74bb - std::panicking::try::h49da3391fdf3e32e [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:490:19 [INFO] [stdout] 39: 0x55e287ef74bb - std::panic::catch_unwind::h3572565afdd6f2ab [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x55e287ef74bb - std::thread::Builder::spawn_unchecked_::{{closure}}::hbad4ce4f2cc21dc7 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 41: 0x55e287ef74bb - core::ops::function::FnOnce::call_once{{vtable.shim}}::hd71fa6f3c57f31a6 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x55e2880aa945 - as core::ops::function::FnOnce>::call_once::hb36533140179578a [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/alloc/src/boxed.rs:2007:9 [INFO] [stdout] 43: 0x55e2880aa945 - as core::ops::function::FnOnce>::call_once::ha21cb2e5c635cca5 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/alloc/src/boxed.rs:2007:9 [INFO] [stdout] 44: 0x55e2880aa945 - std::sys::unix::thread::Thread::new::thread_start::h1d9020f62b27ce19 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7f9b9ad1db43 - [INFO] [stdout] 46: 0x7f9b9adaebb4 - __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/./rmetar1DUdw\"\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" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55e2880a3b4c - std::backtrace_rs::backtrace::libunwind::trace::h65eb8e20c006aa9e [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x55e2880a3b4c - std::backtrace_rs::backtrace::trace_unsynchronized::h48fcc78eeed9f9f5 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55e2880a3b4c - std::sys_common::backtrace::_print_fmt::h4de84f79b39f94f9 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x55e2880a3b4c - ::fmt::hc5c23e344c0312a6 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/sys_common/backtrace.rs:44:22 [INFO] [stdout] 4: 0x55e2880cdbec - core::fmt::rt::Argument::fmt::hf84c0bcce93f881b [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/fmt/rt.rs:138:9 [INFO] [stdout] 5: 0x55e2880cdbec - core::fmt::write::h48b9dc51e7cef14e [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/fmt/mod.rs:1094:21 [INFO] [stdout] 6: 0x55e2880a0ade - std::io::Write::write_fmt::h17325dc81ee2532a [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/io/mod.rs:1714:15 [INFO] [stdout] 7: 0x55e2880a3934 - std::sys_common::backtrace::_print::h3f6e9b5870505902 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/sys_common/backtrace.rs:47:5 [INFO] [stdout] 8: 0x55e2880a3934 - std::sys_common::backtrace::print::hf4ff2c77afc708a8 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/sys_common/backtrace.rs:34:9 [INFO] [stdout] 9: 0x55e2880a590a - std::panicking::panic_hook_with_disk_dump::{{closure}}::h5df80038ee5c1ba2 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:280:22 [INFO] [stdout] 10: 0x55e2880a54cd - std::panicking::panic_hook_with_disk_dump::h2ebfc37b7f15280d [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:311:9 [INFO] [stdout] 11: 0x55e287f2597c - as core::ops::function::Fn>::call::h22fa6063f6436d7a [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/alloc/src/boxed.rs:2021:9 [INFO] [stdout] 12: 0x55e287f2597c - test::test_main::{{closure}}::he25a13dc06806be3 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/test/src/lib.rs:136:21 [INFO] [stdout] 13: 0x55e2880a60a3 - as core::ops::function::Fn>::call::h1342d60d1b251964 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/alloc/src/boxed.rs:2021:9 [INFO] [stdout] 14: 0x55e2880a60a3 - std::panicking::rust_panic_with_hook::h484e3bcc6b0f7418 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:757:13 [INFO] [stdout] 15: 0x55e2880a5e11 - std::panicking::begin_panic_handler::{{closure}}::h708225874d7b3fb6 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:631:13 [INFO] [stdout] 16: 0x55e2880a4076 - std::sys_common::backtrace::__rust_end_short_backtrace::h7ffceb2d6c1b88c3 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/sys_common/backtrace.rs:170:18 [INFO] [stdout] 17: 0x55e2880a5b52 - rust_begin_unwind [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:619:5 [INFO] [stdout] 18: 0x55e287edca55 - core::panicking::panic_fmt::h4a81493cb539dcdc [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/panicking.rs:72:14 [INFO] [stdout] 19: 0x55e287edcfca - core::result::unwrap_failed::h65c6c761a43f4ea2 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/result.rs:1652:5 [INFO] [stdout] 20: 0x55e287edfcdb - core::result::Result::unwrap::hb4c1c089b98e6e9e [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/result.rs:1077:23 [INFO] [stdout] 21: 0x55e287ee84cc - rustlings::exercise::test::test_exercise_with_output::h45f922f172be5fa5 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:346:19 [INFO] [stdout] 22: 0x55e287ee8367 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h8a376c38528fbfe2 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:339:36 [INFO] [stdout] 23: 0x55e287ede436 - core::ops::function::FnOnce::call_once::h1df466e266acdfba [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x55e287f2aaaf - core::ops::function::FnOnce::call_once::hc27e1c2667c8aa71 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x55e287f2aaaf - test::__rust_begin_short_backtrace::h55de90dacbf8ef3c [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/test/src/lib.rs:626:18 [INFO] [stdout] 26: 0x55e287f29a9e - test::run_test_in_process::{{closure}}::hb181c1aecdf11d58 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/test/src/lib.rs:649:60 [INFO] [stdout] 27: 0x55e287f29a9e - as core::ops::function::FnOnce<()>>::call_once::h0db27a7e5e64f170 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 28: 0x55e287f29a9e - std::panicking::try::do_call::h7fd93b6611e6de6d [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:526:40 [INFO] [stdout] 29: 0x55e287f29a9e - std::panicking::try::h9aa252a7c0ecba88 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:490:19 [INFO] [stdout] 30: 0x55e287f29a9e - std::panic::catch_unwind::hae35f1fe8aef0491 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panic.rs:142:14 [INFO] [stdout] 31: 0x55e287f29a9e - test::run_test_in_process::hd1a29c69f3bd4b8e [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/test/src/lib.rs:649:27 [INFO] [stdout] 32: 0x55e287f29a9e - test::run_test::{{closure}}::h3c426115a011de61 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/test/src/lib.rs:572:43 [INFO] [stdout] 33: 0x55e287ef2223 - test::run_test::{{closure}}::h49e8b007df726a97 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/test/src/lib.rs:600:41 [INFO] [stdout] 34: 0x55e287ef2223 - std::sys_common::backtrace::__rust_begin_short_backtrace::h8c26eb6524e3b3fa [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/sys_common/backtrace.rs:154:18 [INFO] [stdout] 35: 0x55e287ef74bb - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::haf47dc1dcc2ed066 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/thread/mod.rs:529:17 [INFO] [stdout] 36: 0x55e287ef74bb - as core::ops::function::FnOnce<()>>::call_once::h10e053f57fbe321c [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 37: 0x55e287ef74bb - std::panicking::try::do_call::hdefdb16a4cf1ad52 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:526:40 [INFO] [stdout] 38: 0x55e287ef74bb - std::panicking::try::h49da3391fdf3e32e [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panicking.rs:490:19 [INFO] [stdout] 39: 0x55e287ef74bb - std::panic::catch_unwind::h3572565afdd6f2ab [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/panic.rs:142:14 [INFO] [stdout] 40: 0x55e287ef74bb - std::thread::Builder::spawn_unchecked_::{{closure}}::hbad4ce4f2cc21dc7 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/thread/mod.rs:528:30 [INFO] [stdout] 41: 0x55e287ef74bb - core::ops::function::FnOnce::call_once{{vtable.shim}}::hd71fa6f3c57f31a6 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x55e2880aa945 - as core::ops::function::FnOnce>::call_once::hb36533140179578a [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/alloc/src/boxed.rs:2007:9 [INFO] [stdout] 43: 0x55e2880aa945 - as core::ops::function::FnOnce>::call_once::ha21cb2e5c635cca5 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/alloc/src/boxed.rs:2007:9 [INFO] [stdout] 44: 0x55e2880aa945 - std::sys::unix::thread::Thread::new::thread_start::h1d9020f62b27ce19 [INFO] [stdout] at /rustc/9847c6406dc8182abb417b69000fcd0bc5f4a1b7/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 45: 0x7f9b9ad1db43 - [INFO] [stdout] 46: 0x7f9b9adaebb4 - __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 0.14s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "2f11c3d30baa6a056335f8c60079d286e2e559e9630c96e0ba76196107d68552", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2f11c3d30baa6a056335f8c60079d286e2e559e9630c96e0ba76196107d68552", kill_on_drop: false }` [INFO] [stdout] 2f11c3d30baa6a056335f8c60079d286e2e559e9630c96e0ba76196107d68552