[INFO] cloning repository https://github.com/lovenangelo/rustlings-challenge [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lovenangelo/rustlings-challenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovenangelo%2Frustlings-challenge", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovenangelo%2Frustlings-challenge'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c7a18b07810b09dbae4630283fed5941c5b7cf1d [INFO] testing lovenangelo/rustlings-challenge/c7a18b07810b09dbae4630283fed5941c5b7cf1d against master#0d162b25edd5bf0dba9a22e83b614f1113e90474 for pr-150681 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flovenangelo%2Frustlings-challenge" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/lovenangelo/rustlings-challenge [INFO] finished tweaking git repo https://github.com/lovenangelo/rustlings-challenge [INFO] tweaked toml for git repo https://github.com/lovenangelo/rustlings-challenge written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/lovenangelo/rustlings-challenge on toolchain 0d162b25edd5bf0dba9a22e83b614f1113e90474 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/lovenangelo/rustlings-challenge 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" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded anyhow v1.0.82 [INFO] [stderr] Downloaded serde_derive v1.0.198 [INFO] [stderr] Downloaded serde v1.0.198 [INFO] [stderr] Downloaded toml_edit v0.22.11 [INFO] [stderr] Downloaded winnow v0.6.6 [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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5e058b39f4f3ff3c0334dfd7e6dafea7273455488d16c1e2c5c34c0e5562abfb [INFO] running `Command { std: "docker" "start" "-a" "5e058b39f4f3ff3c0334dfd7e6dafea7273455488d16c1e2c5c34c0e5562abfb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5e058b39f4f3ff3c0334dfd7e6dafea7273455488d16c1e2c5c34c0e5562abfb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5e058b39f4f3ff3c0334dfd7e6dafea7273455488d16c1e2c5c34c0e5562abfb", kill_on_drop: false }` [INFO] [stdout] 5e058b39f4f3ff3c0334dfd7e6dafea7273455488d16c1e2c5c34c0e5562abfb [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=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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 27c9fd4d6b2dc325f291020191c3169705280c3331eeb2b20fcfff987075b859 [INFO] running `Command { std: "docker" "start" "-a" "27c9fd4d6b2dc325f291020191c3169705280c3331eeb2b20fcfff987075b859", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.81 [INFO] [stderr] Compiling serde v1.0.198 [INFO] [stderr] Compiling crossbeam-utils v0.8.19 [INFO] [stderr] Compiling utf8parse v0.2.1 [INFO] [stderr] Compiling colorchoice v1.0.0 [INFO] [stderr] Compiling portable-atomic v1.6.0 [INFO] [stderr] Compiling anstyle-query v1.0.2 [INFO] [stderr] Compiling rustix v0.38.32 [INFO] [stderr] Compiling anstyle v1.0.6 [INFO] [stderr] Compiling linux-raw-sys v0.4.13 [INFO] [stderr] Compiling serde_json v1.0.116 [INFO] [stderr] Compiling anyhow v1.0.82 [INFO] [stderr] Compiling unicode-width v0.1.11 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling filetime v0.2.23 [INFO] [stderr] Compiling mio v0.8.11 [INFO] [stderr] Compiling anstyle-parse v0.2.3 [INFO] [stderr] Compiling clap_lex v0.7.0 [INFO] [stderr] Compiling inotify v0.9.6 [INFO] [stderr] Compiling bitflags v2.5.0 [INFO] [stderr] Compiling indexmap v2.2.6 [INFO] [stderr] Compiling console v0.15.8 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling winnow v0.6.6 [INFO] [stderr] Compiling either v1.11.0 [INFO] [stderr] Compiling shlex v1.3.0 [INFO] [stderr] Compiling anstream v0.6.13 [INFO] [stderr] Compiling crossbeam-channel v0.5.12 [INFO] [stderr] Compiling clap_builder v4.5.2 [INFO] [stderr] Compiling quote v1.0.36 [INFO] [stderr] Compiling notify v6.1.1 [INFO] [stderr] Compiling syn v2.0.60 [INFO] [stderr] Compiling indicatif v0.17.8 [INFO] [stderr] Compiling notify-debouncer-mini v0.4.1 [INFO] [stderr] Compiling which v6.0.1 [INFO] [stderr] Compiling serde_derive v1.0.198 [INFO] [stderr] Compiling clap_derive v4.5.4 [INFO] [stderr] Compiling clap v4.5.4 [INFO] [stderr] Compiling toml_datetime v0.6.5 [INFO] [stderr] Compiling serde_spanned v0.6.5 [INFO] [stderr] Compiling toml_edit v0.22.11 [INFO] [stderr] Compiling rustlings v5.6.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:125:20 [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 31.67s [INFO] running `Command { std: "docker" "inspect" "27c9fd4d6b2dc325f291020191c3169705280c3331eeb2b20fcfff987075b859", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "27c9fd4d6b2dc325f291020191c3169705280c3331eeb2b20fcfff987075b859", kill_on_drop: false }` [INFO] [stdout] 27c9fd4d6b2dc325f291020191c3169705280c3331eeb2b20fcfff987075b859 [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=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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3e8532ad8ed4c7bc42d121ed9c323ab39d2300485a738e2c23b7c762d64262fc [INFO] running `Command { std: "docker" "start" "-a" "3e8532ad8ed4c7bc42d121ed9c323ab39d2300485a738e2c23b7c762d64262fc", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Compiling regex-automata v0.4.6 [INFO] [stderr] Compiling predicates-core v1.0.6 [INFO] [stderr] Compiling termtree v0.4.1 [INFO] [stderr] Compiling assert_cmd v2.0.14 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling wait-timeout v0.2.0 [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:125:20 [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling predicates-tree v1.0.9 [INFO] [stderr] Compiling float-cmp v0.9.0 [INFO] [stderr] Compiling regex v1.10.4 [INFO] [stderr] Compiling bstr v1.9.1 [INFO] [stderr] Compiling predicates v3.1.0 [INFO] [stderr] Compiling rustlings v5.6.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:125:20 [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 125 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 9.60s [INFO] running `Command { std: "docker" "inspect" "3e8532ad8ed4c7bc42d121ed9c323ab39d2300485a738e2c23b7c762d64262fc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3e8532ad8ed4c7bc42d121ed9c323ab39d2300485a738e2c23b7c762d64262fc", kill_on_drop: false }` [INFO] [stdout] 3e8532ad8ed4c7bc42d121ed9c323ab39d2300485a738e2c23b7c762d64262fc [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=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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0d162b25edd5bf0dba9a22e83b614f1113e90474" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 9afd47caf8df37f52eccc1a19e87ea045473f1655c02506b9a9cde85ef012241 [INFO] running `Command { std: "docker" "start" "-a" "9afd47caf8df37f52eccc1a19e87ea045473f1655c02506b9a9cde85ef012241", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/exercise.rs:125:20 [INFO] [stderr] | [INFO] [stderr] 125 | pub fn compile(&self) -> Result { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 125 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `rustlings` (bin "rustlings") generated 1 warning (run `cargo fix --bin "rustlings" -p rustlings` to apply 1 suggestion) [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-9df9dc1712dbb5f6) [INFO] [stdout] [INFO] [stdout] running 5 tests [INFO] [stdout] test exercise::test::test_not_done ... ok [INFO] [stdout] test exercise::test::test_pending_state ... ok [INFO] [stdout] test exercise::test::test_finished_exercise ... 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' (24) panicked at src/exercise.rs:354:35: [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: 0x64d98af5d782 - std[3b51380354919863]::backtrace_rs::backtrace::libunwind::trace [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x64d98af5d782 - std[3b51380354919863]::backtrace_rs::backtrace::trace_unsynchronized:: [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x64d98af5d782 - std[3b51380354919863]::sys::backtrace::_print_fmt [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:74:9 [INFO] [stdout] 3: 0x64d98af5d782 - <::print::DisplayBacktrace as core[27de1724e4349be2]::fmt::Display>::fmt [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:44:26 [INFO] [stdout] 4: 0x64d98af7213a - ::fmt [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/fmt/rt.rs:152:76 [INFO] [stdout] 5: 0x64d98af7213a - core[27de1724e4349be2]::fmt::write [INFO] [stdout] 6: 0x64d98af62596 - std[3b51380354919863]::io::default_write_fmt::> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x64d98af62596 - as std[3b51380354919863]::io::Write>::write_fmt [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:1994:13 [INFO] [stdout] 8: 0x64d98af3ba5f - ::print [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:47:9 [INFO] [stdout] 9: 0x64d98af3ba5f - std[3b51380354919863]::panicking::default_hook::{closure#0} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:292:27 [INFO] [stdout] 10: 0x64d98af557d9 - std[3b51380354919863]::panicking::default_hook [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:316:9 [INFO] [stdout] 11: 0x64d98aee898e - core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 12: 0x64d98aee898e - test[182b2e79ecd7bbd9]::test_main_with_exit_callback::::{closure#0} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x64d98af55992 - core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 14: 0x64d98af55992 - std[3b51380354919863]::panicking::panic_with_hook [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:833:13 [INFO] [stdout] 15: 0x64d98af3bb18 - std[3b51380354919863]::panicking::panic_handler::{closure#0} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:698:13 [INFO] [stdout] 16: 0x64d98af30ce9 - std[3b51380354919863]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:182:18 [INFO] [stdout] 17: 0x64d98af3c96d - __rustc[d79c0ace40940972]::rust_begin_unwind [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:689:5 [INFO] [stdout] 18: 0x64d98af7280c - core[27de1724e4349be2]::panicking::panic_fmt [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:80:14 [INFO] [stdout] 19: 0x64d98af72582 - core[27de1724e4349be2]::result::unwrap_failed [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/result.rs:1867:5 [INFO] [stdout] 20: 0x64d98aed7474 - >::unwrap [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/result.rs:1233:23 [INFO] [stdout] 21: 0x64d98aed7474 - rustlings[aaf8cac9f252205b]::exercise::test::test_clean [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:354:35 [INFO] [stdout] 22: 0x64d98aed5eb7 - rustlings[aaf8cac9f252205b]::exercise::test::test_clean::{closure#0} [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:353:20 [INFO] [stdout] 23: 0x64d98aeda306 - >::call_once [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x64d98aedcd3b - core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x64d98aedcd3b - test[182b2e79ecd7bbd9]::__rust_begin_short_backtrace::, fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x64d98aee959a - test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x64d98aee959a - as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x64d98aee959a - std[3b51380354919863]::panicking::catch_unwind::do_call::, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40 [INFO] [stdout] 29: 0x64d98aee959a - std[3b51380354919863]::panicking::catch_unwind::, core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19 [INFO] [stdout] 30: 0x64d98aee959a - std[3b51380354919863]::panic::catch_unwind::, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x64d98aee959a - test[182b2e79ecd7bbd9]::run_test_in_process [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x64d98aee959a - test[182b2e79ecd7bbd9]::run_test::{closure#0} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x64d98aee4b44 - test[182b2e79ecd7bbd9]::run_test::{closure#1} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x64d98aee4b44 - std[3b51380354919863]::sys::backtrace::__rust_begin_short_backtrace:: [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:166:18 [INFO] [stdout] 35: 0x64d98aeec092 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::::{closure#1}::{closure#0} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:91:13 [INFO] [stdout] 36: 0x64d98aeec092 - ::{closure#1}::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x64d98aeec092 - std[3b51380354919863]::panicking::catch_unwind::do_call::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40 [INFO] [stdout] 38: 0x64d98aeec092 - std[3b51380354919863]::panicking::catch_unwind::<(), core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe::{closure#1}::{closure#0}>> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19 [INFO] [stdout] 39: 0x64d98aeec092 - std[3b51380354919863]::panic::catch_unwind::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x64d98aeec092 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::::{closure#1} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:89:26 [INFO] [stdout] 41: 0x64d98aeec092 - ::{closure#1} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x64d98af5ce8f - + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2206:9 [INFO] [stdout] 43: 0x64d98af5ce8f - ::new::thread_start [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/thread/unix.rs:119:17 [INFO] [stdout] 44: 0x767b5b790aa4 - [INFO] [stdout] 45: 0x767b5b81da64 - clone [INFO] [stdout] 46: 0x0 - [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'exercise::test::test_exercise_with_output' (25) panicked at src/exercise.rs:445:38: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: ExerciseOutput { stdout: "", stderr: "\u{1b}[1m\u{1b}[91merror\u{1b}[0m\u{1b}[1m: couldn't create a temp dir: Read-only file system (os error 30) at path \"/opt/rustwide/workdir/./rmeta70Zt0T\"\u{1b}[0m\n\n\u{1b}[1m\u{1b}[91merror\u{1b}[0m\u{1b}[1m: aborting due to 1 previous error\u{1b}[0m\n\n" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x64d98af5d782 - std[3b51380354919863]::backtrace_rs::backtrace::libunwind::trace [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x64d98af5d782 - std[3b51380354919863]::backtrace_rs::backtrace::trace_unsynchronized:: [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x64d98af5d782 - std[3b51380354919863]::sys::backtrace::_print_fmt [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:74:9 [INFO] [stdout] 3: 0x64d98af5d782 - <::print::DisplayBacktrace as core[27de1724e4349be2]::fmt::Display>::fmt [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:44:26 [INFO] [stdout] 4: 0x64d98af7213a - ::fmt [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/fmt/rt.rs:152:76 [INFO] [stdout] 5: 0x64d98af7213a - core[27de1724e4349be2]::fmt::write [INFO] [stdout] 6: 0x64d98af62596 - std[3b51380354919863]::io::default_write_fmt::> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x64d98af62596 - as std[3b51380354919863]::io::Write>::write_fmt [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/io/mod.rs:1994:13 [INFO] [stdout] 8: 0x64d98af3ba5f - ::print [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:47:9 [INFO] [stdout] 9: 0x64d98af3ba5f - std[3b51380354919863]::panicking::default_hook::{closure#0} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:292:27 [INFO] [stdout] 10: 0x64d98af557d9 - std[3b51380354919863]::panicking::default_hook [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:316:9 [INFO] [stdout] 11: 0x64d98aee898e - core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 12: 0x64d98aee898e - test[182b2e79ecd7bbd9]::test_main_with_exit_callback::::{closure#0} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x64d98af55992 - core[27de1724e4349be2]::ops::function::Fn<(&'a std[3b51380354919863]::panic::PanicHookInfo<'b>,), Output = ()> + core[27de1724e4349be2]::marker::Sync + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::Fn<(&std[3b51380354919863]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 14: 0x64d98af55992 - std[3b51380354919863]::panicking::panic_with_hook [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:833:13 [INFO] [stdout] 15: 0x64d98af3bb18 - std[3b51380354919863]::panicking::panic_handler::{closure#0} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:698:13 [INFO] [stdout] 16: 0x64d98af30ce9 - std[3b51380354919863]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:182:18 [INFO] [stdout] 17: 0x64d98af3c96d - __rustc[d79c0ace40940972]::rust_begin_unwind [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:689:5 [INFO] [stdout] 18: 0x64d98af7280c - core[27de1724e4349be2]::panicking::panic_fmt [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panicking.rs:80:14 [INFO] [stdout] 19: 0x64d98af72582 - core[27de1724e4349be2]::result::unwrap_failed [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/result.rs:1867:5 [INFO] [stdout] 20: 0x64d98aed83e4 - >::unwrap [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/result.rs:1233:23 [INFO] [stdout] 21: 0x64d98aed83e4 - rustlings[aaf8cac9f252205b]::exercise::test::test_exercise_with_output [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:445:38 [INFO] [stdout] 22: 0x64d98aed5f77 - rustlings[aaf8cac9f252205b]::exercise::test::test_exercise_with_output::{closure#0} [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:438:35 [INFO] [stdout] 23: 0x64d98aeda406 - >::call_once [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x64d98aedcd3b - core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x64d98aedcd3b - test[182b2e79ecd7bbd9]::__rust_begin_short_backtrace::, fn() -> core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x64d98aee959a - test[182b2e79ecd7bbd9]::run_test_in_process::{closure#0} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x64d98aee959a - as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x64d98aee959a - std[3b51380354919863]::panicking::catch_unwind::do_call::, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40 [INFO] [stdout] 29: 0x64d98aee959a - std[3b51380354919863]::panicking::catch_unwind::, core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19 [INFO] [stdout] 30: 0x64d98aee959a - std[3b51380354919863]::panic::catch_unwind::, core[27de1724e4349be2]::result::Result<(), alloc[a57f19327c0ad893]::string::String>> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x64d98aee959a - test[182b2e79ecd7bbd9]::run_test_in_process [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x64d98aee959a - test[182b2e79ecd7bbd9]::run_test::{closure#0} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x64d98aee4b44 - test[182b2e79ecd7bbd9]::run_test::{closure#1} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x64d98aee4b44 - std[3b51380354919863]::sys::backtrace::__rust_begin_short_backtrace:: [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/backtrace.rs:166:18 [INFO] [stdout] 35: 0x64d98aeec092 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::::{closure#1}::{closure#0} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:91:13 [INFO] [stdout] 36: 0x64d98aeec092 - ::{closure#1}::{closure#0}> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x64d98aeec092 - std[3b51380354919863]::panicking::catch_unwind::do_call::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:581:40 [INFO] [stdout] 38: 0x64d98aeec092 - std[3b51380354919863]::panicking::catch_unwind::<(), core[27de1724e4349be2]::panic::unwind_safe::AssertUnwindSafe::{closure#1}::{closure#0}>> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panicking.rs:544:19 [INFO] [stdout] 39: 0x64d98aeec092 - std[3b51380354919863]::panic::catch_unwind::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x64d98aeec092 - std[3b51380354919863]::thread::lifecycle::spawn_unchecked::::{closure#1} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/thread/lifecycle.rs:89:26 [INFO] [stdout] 41: 0x64d98aeec092 - ::{closure#1} as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x64d98af5ce8f - + core[27de1724e4349be2]::marker::Send> as core[27de1724e4349be2]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/alloc/src/boxed.rs:2206:9 [INFO] [stdout] 43: 0x64d98af5ce8f - ::new::thread_start [INFO] [stdout] at /rustc/0d162b25edd5bf0dba9a22e83b614f1113e90474/library/std/src/sys/thread/unix.rs:119:17 [INFO] [stdout] 44: 0x767b5b790aa4 - [INFO] [stdout] 45: 0x767b5b81da64 - clone [INFO] [stdout] 46: 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. 3 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "9afd47caf8df37f52eccc1a19e87ea045473f1655c02506b9a9cde85ef012241", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9afd47caf8df37f52eccc1a19e87ea045473f1655c02506b9a9cde85ef012241", kill_on_drop: false }` [INFO] [stdout] 9afd47caf8df37f52eccc1a19e87ea045473f1655c02506b9a9cde85ef012241