[INFO] cloning repository https://github.com/piojagcodes/Rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/piojagcodes/Rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiojagcodes%2FRustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiojagcodes%2FRustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1021f344f2af3fc4761606c1982a39c9129ef79c [INFO] testing piojagcodes/Rustlings against master#b03b3a7ec92682be2917540b679478d41c95a30c for pr-137122-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpiojagcodes%2FRustlings" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... 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[INFO] started tweaking git repo https://github.com/piojagcodes/Rustlings [INFO] finished tweaking git repo https://github.com/piojagcodes/Rustlings [INFO] tweaked toml for git repo https://github.com/piojagcodes/Rustlings written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/piojagcodes/Rustlings on toolchain b03b3a7ec92682be2917540b679478d41c95a30c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/piojagcodes/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" "+b03b3a7ec92682be2917540b679478d41c95a30c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ebdbbdff10289958886987c711961f5ff575407b387eb99f41bce3a591989655 [INFO] running `Command { std: "docker" "start" "-a" "ebdbbdff10289958886987c711961f5ff575407b387eb99f41bce3a591989655", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ebdbbdff10289958886987c711961f5ff575407b387eb99f41bce3a591989655", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ebdbbdff10289958886987c711961f5ff575407b387eb99f41bce3a591989655", kill_on_drop: false }` [INFO] [stdout] ebdbbdff10289958886987c711961f5ff575407b387eb99f41bce3a591989655 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 14b55655e7b6f04f786850ec754c127f50362d67ba4f0dbb0bafa689555fdf44 [INFO] running `Command { std: "docker" "start" "-a" "14b55655e7b6f04f786850ec754c127f50362d67ba4f0dbb0bafa689555fdf44", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.66 [INFO] [stderr] Compiling unicode-ident v1.0.11 [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling serde v1.0.188 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling utf8parse v0.2.1 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling colorchoice v1.0.0 [INFO] [stderr] Compiling equivalent v1.0.1 [INFO] [stderr] Compiling anstyle-parse v0.2.1 [INFO] [stderr] Compiling portable-atomic v1.4.3 [INFO] [stderr] Compiling memchr v2.6.3 [INFO] [stderr] Compiling anstyle-query v1.0.0 [INFO] [stderr] Compiling hashbrown v0.14.0 [INFO] [stderr] Compiling anstyle v1.0.2 [INFO] [stderr] Compiling log v0.4.20 [INFO] [stderr] Compiling anstream v0.5.0 [INFO] [stderr] Compiling strsim v0.10.0 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling slab v0.4.9 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Compiling heck v0.4.1 [INFO] [stderr] Compiling indexmap v2.0.0 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling syn v2.0.31 [INFO] [stderr] Compiling regex-syntax v0.7.5 [INFO] [stderr] Compiling clap_lex v0.5.1 [INFO] [stderr] Compiling aho-corasick v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.105 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.39 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling winnow v0.5.15 [INFO] [stderr] Compiling unicode-width v0.1.10 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling console v0.15.7 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling filetime v0.2.22 [INFO] [stderr] Compiling clap_builder v4.4.2 [INFO] [stderr] Compiling walkdir v2.3.3 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling itoa v1.0.9 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling ryu v1.0.15 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling home v0.5.5 [INFO] [stderr] Compiling indicatif v0.17.6 [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stderr] Compiling regex-automata v0.3.8 [INFO] [stderr] Compiling serde_derive v1.0.188 [INFO] [stderr] Compiling clap_derive v4.4.2 [INFO] [stderr] Compiling regex v1.9.5 [INFO] [stderr] Compiling clap v4.4.2 [INFO] [stderr] Compiling toml_datetime v0.6.3 [INFO] [stderr] Compiling serde_spanned v0.6.3 [INFO] [stderr] Compiling toml_edit v0.19.14 [INFO] [stderr] Compiling toml v0.7.6 [INFO] [stderr] Compiling rustlings v5.6.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:110:20 [INFO] [stdout] | [INFO] [stdout] 110 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 110 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 51.80s [INFO] running `Command { std: "docker" "inspect" "14b55655e7b6f04f786850ec754c127f50362d67ba4f0dbb0bafa689555fdf44", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "14b55655e7b6f04f786850ec754c127f50362d67ba4f0dbb0bafa689555fdf44", kill_on_drop: false }` [INFO] [stdout] 14b55655e7b6f04f786850ec754c127f50362d67ba4f0dbb0bafa689555fdf44 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b44ccc2d650b25f54afe9c7a3b857499cffcd522d3e31a5e620cdc79eab22e13 [INFO] running `Command { std: "docker" "start" "-a" "b44ccc2d650b25f54afe9c7a3b857499cffcd522d3e31a5e620cdc79eab22e13", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.16 [INFO] [stderr] Compiling regex-automata v0.3.8 [INFO] [stderr] Compiling either v1.9.0 [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 wait-timeout v0.2.0 [INFO] [stderr] Compiling predicates-tree v1.0.9 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Compiling float-cmp v0.9.0 [INFO] [stderr] Compiling regex v1.9.5 [INFO] [stderr] Compiling bstr v1.6.2 [INFO] [stderr] Compiling predicates v3.0.3 [INFO] [stderr] Compiling assert_cmd v2.0.12 [INFO] [stderr] Compiling rustlings v5.6.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:110:20 [INFO] [stdout] | [INFO] [stdout] 110 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 110 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:110:20 [INFO] [stdout] | [INFO] [stdout] 110 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 110 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 12.57s [INFO] running `Command { std: "docker" "inspect" "b44ccc2d650b25f54afe9c7a3b857499cffcd522d3e31a5e620cdc79eab22e13", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b44ccc2d650b25f54afe9c7a3b857499cffcd522d3e31a5e620cdc79eab22e13", kill_on_drop: false }` [INFO] [stdout] b44ccc2d650b25f54afe9c7a3b857499cffcd522d3e31a5e620cdc79eab22e13 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 6c9fa962d1a91170e69055acf558b73ad29c138b39515fb512b1ab7b96d7070d [INFO] running `Command { std: "docker" "start" "-a" "6c9fa962d1a91170e69055acf558b73ad29c138b39515fb512b1ab7b96d7070d", kill_on_drop: false }` [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/exercise.rs:110:20 [INFO] [stderr] | [INFO] [stderr] 110 | pub fn compile(&self) -> Result { [INFO] [stderr] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 110 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `rustlings` (bin "rustlings") generated 1 warning [INFO] [stderr] warning: `rustlings` (bin "rustlings" test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.12s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-064ec1e068a47b59) [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] [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: 0x6163b0612e72 - std::backtrace_rs::backtrace::libunwind::trace::hf6dd235ae0786829 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x6163b0612e72 - std::backtrace_rs::backtrace::trace_unsynchronized::h3a5b54e78104e8b2 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x6163b0612e72 - std::sys::backtrace::_print_fmt::hca7a5c1644e21919 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x6163b0612e72 - ::fmt::h38110959524b373c [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x6163b0638eb3 - core::fmt::rt::Argument::fmt::h391eb3fdbf3d4042 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x6163b0638eb3 - core::fmt::write::h5b87140645224122 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/fmt/mod.rs:1465:25 [INFO] [stdout] 6: 0x6163b060fd33 - std::io::default_write_fmt::h3039811ce7aea84b [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x6163b060fd33 - std::io::Write::write_fmt::h2eef262cf4840ab4 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x6163b0612cc2 - std::sys::backtrace::BacktraceLock::print::hcd755c38f62e4492 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x6163b061448c - std::panicking::default_hook::{{closure}}::h351f33591b26e6e7 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:300:27 [INFO] [stdout] 10: 0x6163b06142e2 - std::panicking::default_hook::he5bba7bf0a373c6e [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x6163b03ac814 - as core::ops::function::Fn>::call::he967d9fa26b9957c [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x6163b03ac814 - test::test_main_with_exit_callback::{{closure}}::h80e1694b81a05381 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x6163b0614e6b - as core::ops::function::Fn>::call::h4e924fcf5bc64d70 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x6163b0614e6b - std::panicking::rust_panic_with_hook::hdf456b43e6535023 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x6163b0614c3a - std::panicking::begin_panic_handler::{{closure}}::he1c1ab0b84006a97 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x6163b0613369 - std::sys::backtrace::__rust_end_short_backtrace::h2a71da996e10b8a0 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x6163b06148cd - __rustc[92197b79f0fe8095]::rust_begin_unwind [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x6163b0637650 - core::panicking::panic_fmt::h723bf1d52f6dad29 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x6163b0637a96 - core::result::unwrap_failed::hee42034aaecc2a24 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/result.rs:1761:5 [INFO] [stdout] 20: 0x6163b036d2b4 - core::result::Result::unwrap::hb21726243648094a [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/result.rs:1167:23 [INFO] [stdout] 21: 0x6163b036d2b4 - rustlings::exercise::test::test_clean::hbc7e9c57399a6f07 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:273:35 [INFO] [stdout] 22: 0x6163b036d237 - rustlings::exercise::test::test_clean::{{closure}}::h2f70c731835f801f [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:272:20 [INFO] [stdout] 23: 0x6163b036a136 - core::ops::function::FnOnce::call_once::hb7e9f1718d602e85 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x6163b03b1fbb - core::ops::function::FnOnce::call_once::h0669c8b9c48a7d8a [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x6163b03b1fbb - test::__rust_begin_short_backtrace::h7b085d6d90a7575c [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/test/src/lib.rs:648:18 [INFO] [stdout] 26: 0x6163b03b118e - test::run_test_in_process::{{closure}}::ha304053f1e1d1fbe [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/test/src/lib.rs:671:74 [INFO] [stdout] 27: 0x6163b03b118e - as core::ops::function::FnOnce<()>>::call_once::h8e30650eb6723f86 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x6163b03b118e - std::panicking::catch_unwind::do_call::hfe563e330be3fd9d [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x6163b03b118e - std::panicking::catch_unwind::hed40f568f7f44546 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x6163b03b118e - std::panic::catch_unwind::h3bb9c46c11d39dfb [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x6163b03b118e - test::run_test_in_process::hd65f1a6e6622ae42 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/test/src/lib.rs:671:27 [INFO] [stdout] 32: 0x6163b03b118e - test::run_test::{{closure}}::h9e896de936f245ea [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/test/src/lib.rs:592:43 [INFO] [stdout] 33: 0x6163b0374d84 - test::run_test::{{closure}}::hbb18881f56552c10 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/test/src/lib.rs:622:41 [INFO] [stdout] 34: 0x6163b0374d84 - std::sys::backtrace::__rust_begin_short_backtrace::hca2387d32733b689 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x6163b037867a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9601175bf02a7fb8 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x6163b037867a - as core::ops::function::FnOnce<()>>::call_once::had8286ad0e1f2528 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x6163b037867a - std::panicking::catch_unwind::do_call::he4164e9e75841fd6 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x6163b037867a - std::panicking::catch_unwind::h48ccc52a84ae7300 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x6163b037867a - std::panic::catch_unwind::h3d97eb787aa35ee4 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x6163b037867a - std::thread::Builder::spawn_unchecked_::{{closure}}::h1019329d11de31fb [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x6163b037867a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h050615be551c6447 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x6163b0617dc7 - as core::ops::function::FnOnce>::call_once::h23e83c3768c28e74 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x6163b0617dc7 - as core::ops::function::FnOnce>::call_once::he67b41932d2c126e [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x6163b0617dc7 - std::sys::pal::unix::thread::Thread::new::thread_start::hc05bf0eaa2386caa [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/sys/pal/unix/thread.rs:97:17 [INFO] [stdout] 45: 0x79bf08188aa4 - [INFO] [stdout] 46: 0x79bf08215a34 - clone [INFO] [stdout] 47: 0x0 - [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ---- [INFO] [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/./rmeta1sM7OL\"\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: 0x6163b0612e72 - std::backtrace_rs::backtrace::libunwind::trace::hf6dd235ae0786829 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x6163b0612e72 - std::backtrace_rs::backtrace::trace_unsynchronized::h3a5b54e78104e8b2 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x6163b0612e72 - std::sys::backtrace::_print_fmt::hca7a5c1644e21919 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x6163b0612e72 - ::fmt::h38110959524b373c [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x6163b0638eb3 - core::fmt::rt::Argument::fmt::h391eb3fdbf3d4042 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x6163b0638eb3 - core::fmt::write::h5b87140645224122 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/fmt/mod.rs:1465:25 [INFO] [stdout] 6: 0x6163b060fd33 - std::io::default_write_fmt::h3039811ce7aea84b [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x6163b060fd33 - std::io::Write::write_fmt::h2eef262cf4840ab4 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x6163b0612cc2 - std::sys::backtrace::BacktraceLock::print::hcd755c38f62e4492 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x6163b061448c - std::panicking::default_hook::{{closure}}::h351f33591b26e6e7 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:300:27 [INFO] [stdout] 10: 0x6163b06142e2 - std::panicking::default_hook::he5bba7bf0a373c6e [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x6163b03ac814 - as core::ops::function::Fn>::call::he967d9fa26b9957c [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 12: 0x6163b03ac814 - test::test_main_with_exit_callback::{{closure}}::h80e1694b81a05381 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x6163b0614e6b - as core::ops::function::Fn>::call::h4e924fcf5bc64d70 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/alloc/src/boxed.rs:1980:9 [INFO] [stdout] 14: 0x6163b0614e6b - std::panicking::rust_panic_with_hook::hdf456b43e6535023 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x6163b0614c3a - std::panicking::begin_panic_handler::{{closure}}::he1c1ab0b84006a97 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x6163b0613369 - std::sys::backtrace::__rust_end_short_backtrace::h2a71da996e10b8a0 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x6163b06148cd - __rustc[92197b79f0fe8095]::rust_begin_unwind [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x6163b0637650 - core::panicking::panic_fmt::h723bf1d52f6dad29 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x6163b0637a96 - core::result::unwrap_failed::hee42034aaecc2a24 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/result.rs:1761:5 [INFO] [stdout] 20: 0x6163b036e126 - core::result::Result::unwrap::h9852426bf32f37bc [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/result.rs:1167:23 [INFO] [stdout] 21: 0x6163b036e126 - rustlings::exercise::test::test_exercise_with_output::h24c5ca84422bd52b [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:346:38 [INFO] [stdout] 22: 0x6163b036df27 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hbbf79306f35ed269 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:339:35 [INFO] [stdout] 23: 0x6163b036a1b6 - core::ops::function::FnOnce::call_once::hec5bd7a93e29ff52 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x6163b03b1fbb - core::ops::function::FnOnce::call_once::h0669c8b9c48a7d8a [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x6163b03b1fbb - test::__rust_begin_short_backtrace::h7b085d6d90a7575c [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/test/src/lib.rs:648:18 [INFO] [stdout] 26: 0x6163b03b118e - test::run_test_in_process::{{closure}}::ha304053f1e1d1fbe [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/test/src/lib.rs:671:74 [INFO] [stdout] 27: 0x6163b03b118e - as core::ops::function::FnOnce<()>>::call_once::h8e30650eb6723f86 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x6163b03b118e - std::panicking::catch_unwind::do_call::hfe563e330be3fd9d [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x6163b03b118e - std::panicking::catch_unwind::hed40f568f7f44546 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x6163b03b118e - std::panic::catch_unwind::h3bb9c46c11d39dfb [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x6163b03b118e - test::run_test_in_process::hd65f1a6e6622ae42 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/test/src/lib.rs:671:27 [INFO] [stdout] 32: 0x6163b03b118e - test::run_test::{{closure}}::h9e896de936f245ea [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/test/src/lib.rs:592:43 [INFO] [stdout] 33: 0x6163b0374d84 - test::run_test::{{closure}}::hbb18881f56552c10 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/test/src/lib.rs:622:41 [INFO] [stdout] 34: 0x6163b0374d84 - std::sys::backtrace::__rust_begin_short_backtrace::hca2387d32733b689 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x6163b037867a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9601175bf02a7fb8 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x6163b037867a - as core::ops::function::FnOnce<()>>::call_once::had8286ad0e1f2528 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x6163b037867a - std::panicking::catch_unwind::do_call::he4164e9e75841fd6 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x6163b037867a - std::panicking::catch_unwind::h48ccc52a84ae7300 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x6163b037867a - std::panic::catch_unwind::h3d97eb787aa35ee4 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x6163b037867a - std::thread::Builder::spawn_unchecked_::{{closure}}::h1019329d11de31fb [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x6163b037867a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h050615be551c6447 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x6163b0617dc7 - as core::ops::function::FnOnce>::call_once::h23e83c3768c28e74 [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 43: 0x6163b0617dc7 - as core::ops::function::FnOnce>::call_once::he67b41932d2c126e [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/alloc/src/boxed.rs:1966:9 [INFO] [stdout] 44: 0x6163b0617dc7 - std::sys::pal::unix::thread::Thread::new::thread_start::hc05bf0eaa2386caa [INFO] [stdout] at /rustc/b03b3a7ec92682be2917540b679478d41c95a30c/library/std/src/sys/pal/unix/thread.rs:97:17 [INFO] [stdout] 45: 0x79bf08188aa4 - [INFO] [stdout] 46: 0x79bf08215a34 - 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 0.15s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "6c9fa962d1a91170e69055acf558b73ad29c138b39515fb512b1ab7b96d7070d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c9fa962d1a91170e69055acf558b73ad29c138b39515fb512b1ab7b96d7070d", kill_on_drop: false }` [INFO] [stdout] 6c9fa962d1a91170e69055acf558b73ad29c138b39515fb512b1ab7b96d7070d