[INFO] cloning repository https://github.com/iamoperand/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iamoperand/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamoperand%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamoperand%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a9c09201f7bf8a869b2c0e29baf0bcca119cdaad [INFO] testing iamoperand/rustlings against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiamoperand%2Frustlings" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/iamoperand/rustlings [INFO] finished tweaking git repo https://github.com/iamoperand/rustlings [INFO] tweaked toml for git repo https://github.com/iamoperand/rustlings written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/iamoperand/rustlings on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/iamoperand/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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded clicolors-control v1.0.1 [INFO] [stderr] Downloaded indicatif v0.10.3 [INFO] [stderr] Downloaded console v0.7.7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e4a1aaf26f70fa9051babdd9a864eb9db825e868564ab4384a6a9bfbec280519 [INFO] running `Command { std: "docker" "start" "-a" "e4a1aaf26f70fa9051babdd9a864eb9db825e868564ab4384a6a9bfbec280519", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e4a1aaf26f70fa9051babdd9a864eb9db825e868564ab4384a6a9bfbec280519", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4a1aaf26f70fa9051babdd9a864eb9db825e868564ab4384a6a9bfbec280519", kill_on_drop: false }` [INFO] [stdout] e4a1aaf26f70fa9051babdd9a864eb9db825e868564ab4384a6a9bfbec280519 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d160200d6a0d1334e625168ae5858cb271f9c934a5c633e04ff29dafd0f4dec1 [INFO] running `Command { std: "docker" "start" "-a" "d160200d6a0d1334e625168ae5858cb271f9c934a5c633e04ff29dafd0f4dec1", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling smallvec v1.6.1 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling instant v0.1.10 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling lock_api v0.4.4 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling parking_lot_core v0.8.3 [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 clicolors-control v1.0.1 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling termios v0.3.3 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling number_prefix v0.2.8 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling console v0.14.1 [INFO] [stderr] Compiling console v0.7.7 [INFO] [stderr] Compiling indicatif v0.10.3 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v4.6.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:109:20 [INFO] [stdout] | [INFO] [stdout] 109 | 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] 109 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.60s [INFO] running `Command { std: "docker" "inspect" "d160200d6a0d1334e625168ae5858cb271f9c934a5c633e04ff29dafd0f4dec1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d160200d6a0d1334e625168ae5858cb271f9c934a5c633e04ff29dafd0f4dec1", kill_on_drop: false }` [INFO] [stdout] d160200d6a0d1334e625168ae5858cb271f9c934a5c633e04ff29dafd0f4dec1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0f3e3b1ecdad69aae6dd7d4b3a15bd4520b0dac7922a6b78a46c4402e055b575 [INFO] running `Command { std: "docker" "start" "-a" "0f3e3b1ecdad69aae6dd7d4b3a15bd4520b0dac7922a6b78a46c4402e055b575", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:109:20 [INFO] [stdout] | [INFO] [stdout] 109 | 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] 109 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling predicates-tree v1.0.3 [INFO] [stderr] Compiling predicates v1.0.8 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v4.6.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:109:20 [INFO] [stdout] | [INFO] [stdout] 109 | 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] 109 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 3.03s [INFO] running `Command { std: "docker" "inspect" "0f3e3b1ecdad69aae6dd7d4b3a15bd4520b0dac7922a6b78a46c4402e055b575", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0f3e3b1ecdad69aae6dd7d4b3a15bd4520b0dac7922a6b78a46c4402e055b575", kill_on_drop: false }` [INFO] [stdout] 0f3e3b1ecdad69aae6dd7d4b3a15bd4520b0dac7922a6b78a46c4402e055b575 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 60ca68639c4792e1aaddf6f0bca0f3b668ec9ff4976563ea523f93c76140edb0 [INFO] running `Command { std: "docker" "start" "-a" "60ca68639c4792e1aaddf6f0bca0f3b668ec9ff4976563ea523f93c76140edb0", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/exercise.rs:109:20 [INFO] [stderr] | [INFO] [stderr] 109 | 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] 109 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `rustlings` (bin "rustlings") generated 1 warning (run `cargo fix --bin "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 0.15s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-7390ecdb511260a9) [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' (24) panicked at src/exercise.rs:270:36: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x64da584a05b2 - std::backtrace_rs::backtrace::libunwind::trace::h7cddb8376417e7cc [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x64da584a05b2 - std::backtrace_rs::backtrace::trace_unsynchronized::hb4e41acf4b349ff1 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x64da584a05b2 - std::sys::backtrace::_print_fmt::h1222b80910ba6eb5 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x64da584a05b2 - ::fmt::h5bb8a979ba5db788 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x64da584b132f - core::fmt::rt::Argument::fmt::h2ee2c138a50a7796 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x64da584b132f - core::fmt::write::h1e0dbf07fe3990bd [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x64da5846db83 - std::io::default_write_fmt::h7d7ad5ed6a883d81 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x64da5846db83 - std::io::Write::write_fmt::hc477d9325b345ece [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x64da58479b82 - std::sys::backtrace::BacktraceLock::print::h788d486777205086 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x64da5847e62f - std::panicking::default_hook::{{closure}}::ha7bdfeb5949fc0fa [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x64da5847e4c1 - std::panicking::default_hook::h6dad75ec721846f4 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x64da583078ee - as core::ops::function::Fn>::call::h33799d04b0b96146 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 12: 0x64da583078ee - test::test_main_with_exit_callback::{{closure}}::h880e31c829a2eb5d [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x64da5847ecce - as core::ops::function::Fn>::call::h5e1b8c652ea49180 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 14: 0x64da5847ecce - std::panicking::panic_with_hook::hba00e869ada17676 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x64da5847ea9a - std::panicking::panic_handler::{{closure}}::h3d21149c258e5ceb [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x64da58479cb9 - std::sys::backtrace::__rust_end_short_backtrace::h4f5d9b9dfb3e6ec1 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x64da58461cbd - __rustc[9a7a9f9af7564de1]::rust_begin_unwind [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x64da584b96e0 - core::panicking::panic_fmt::h78e817a90331d98b [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x64da584b8b16 - core::result::unwrap_failed::h3ce108722ad88f1e [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/result.rs:1852:5 [INFO] [stdout] 20: 0x64da582da27c - core::result::Result::unwrap::h286b897d288d6aab [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/result.rs:1223:23 [INFO] [stdout] 21: 0x64da582da27c - rustlings::exercise::test::test_clean::h2688b78efdc157e9 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:270:36 [INFO] [stdout] 22: 0x64da582da647 - rustlings::exercise::test::test_clean::{{closure}}::h0c34670680eccce9 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:20 [INFO] [stdout] 23: 0x64da582dde16 - core::ops::function::FnOnce::call_once::ha3dcdb07d75c7ab0 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 24: 0x64da583076eb - core::ops::function::FnOnce::call_once::h7f4b4fba903e39d5 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 25: 0x64da583076eb - test::__rust_begin_short_backtrace::h9277cb6a2ccfc000 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x64da5831d195 - test::run_test_in_process::{{closure}}::h9aea5ca90d1f4423 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x64da5831d195 - as core::ops::function::FnOnce<()>>::call_once::h364f5fe6cc8afa85 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x64da5831d195 - std::panicking::catch_unwind::do_call::h2b2bec3317fe53ec [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x64da5831d195 - std::panicking::catch_unwind::hc3763734156da4af [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x64da5831d195 - std::panic::catch_unwind::h28038391e867eabc [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x64da5831d195 - test::run_test_in_process::had0273166695a036 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x64da5831d195 - test::run_test::{{closure}}::h743d09d4bb476605 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x64da582f3bb4 - test::run_test::{{closure}}::he950b8f9118d37e2 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x64da582f3bb4 - std::sys::backtrace::__rust_begin_short_backtrace::hbfaffa6539f6abb7 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x64da582f749a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hcce3c2c65b9c3b20 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x64da582f749a - as core::ops::function::FnOnce<()>>::call_once::hb66b30b6d37985a5 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x64da582f749a - std::panicking::catch_unwind::do_call::h992bbe2c32dc1d79 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x64da582f749a - std::panicking::catch_unwind::h412991d5237de610 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x64da582f749a - std::panic::catch_unwind::ha82b139b3eb5840a [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x64da582f749a - std::thread::Builder::spawn_unchecked_::{{closure}}::ha823b36f5114938e [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x64da582f749a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hf120e7b1db22ac07 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 42: 0x64da58473daf - as core::ops::function::FnOnce>::call_once::h3e049222c99298ac [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 43: 0x64da58473daf - std::sys::pal::unix::thread::Thread::new::thread_start::h942e336943ad5963 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/pal/unix/thread.rs:118:17 [INFO] [stdout] 44: 0x7da97fe96aa4 - [INFO] [stdout] 45: 0x7da97ff23a34 - 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:343:38: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: ExerciseOutput { stdout: "", stderr: "\u{1b}[0m\u{1b}[1m\u{1b}[38;5;9merror\u{1b}[0m\u{1b}[0m\u{1b}[1m: couldn't create a temp dir: Read-only file system (os error 30) at path \"/opt/rustwide/workdir/./rmetaryZ475\"\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: 0x64da584a05b2 - std::backtrace_rs::backtrace::libunwind::trace::h7cddb8376417e7cc [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x64da584a05b2 - std::backtrace_rs::backtrace::trace_unsynchronized::hb4e41acf4b349ff1 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x64da584a05b2 - std::sys::backtrace::_print_fmt::h1222b80910ba6eb5 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x64da584a05b2 - ::fmt::h5bb8a979ba5db788 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x64da584b132f - core::fmt::rt::Argument::fmt::h2ee2c138a50a7796 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x64da584b132f - core::fmt::write::h1e0dbf07fe3990bd [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x64da5846db83 - std::io::default_write_fmt::h7d7ad5ed6a883d81 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x64da5846db83 - std::io::Write::write_fmt::hc477d9325b345ece [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x64da58479b82 - std::sys::backtrace::BacktraceLock::print::h788d486777205086 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x64da5847e62f - std::panicking::default_hook::{{closure}}::ha7bdfeb5949fc0fa [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x64da5847e4c1 - std::panicking::default_hook::h6dad75ec721846f4 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x64da583078ee - as core::ops::function::Fn>::call::h33799d04b0b96146 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 12: 0x64da583078ee - test::test_main_with_exit_callback::{{closure}}::h880e31c829a2eb5d [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x64da5847ecce - as core::ops::function::Fn>::call::h5e1b8c652ea49180 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 14: 0x64da5847ecce - std::panicking::panic_with_hook::hba00e869ada17676 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x64da5847ea9a - std::panicking::panic_handler::{{closure}}::h3d21149c258e5ceb [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x64da58479cb9 - std::sys::backtrace::__rust_end_short_backtrace::h4f5d9b9dfb3e6ec1 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x64da58461cbd - __rustc[9a7a9f9af7564de1]::rust_begin_unwind [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x64da584b96e0 - core::panicking::panic_fmt::h78e817a90331d98b [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x64da584b8b16 - core::result::unwrap_failed::h3ce108722ad88f1e [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/result.rs:1852:5 [INFO] [stdout] 20: 0x64da582db0a4 - core::result::Result::unwrap::h52f55778c85c91c1 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/result.rs:1223:23 [INFO] [stdout] 21: 0x64da582db0a4 - rustlings::exercise::test::test_exercise_with_output::h84089c8484148d1d [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:343:38 [INFO] [stdout] 22: 0x64da582db327 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h3dc4196323b26946 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:336:35 [INFO] [stdout] 23: 0x64da582ddd86 - core::ops::function::FnOnce::call_once::h27f1997b326db513 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 24: 0x64da583076eb - core::ops::function::FnOnce::call_once::h7f4b4fba903e39d5 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 25: 0x64da583076eb - test::__rust_begin_short_backtrace::h9277cb6a2ccfc000 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x64da5831d195 - test::run_test_in_process::{{closure}}::h9aea5ca90d1f4423 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x64da5831d195 - as core::ops::function::FnOnce<()>>::call_once::h364f5fe6cc8afa85 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x64da5831d195 - std::panicking::catch_unwind::do_call::h2b2bec3317fe53ec [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x64da5831d195 - std::panicking::catch_unwind::hc3763734156da4af [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x64da5831d195 - std::panic::catch_unwind::h28038391e867eabc [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x64da5831d195 - test::run_test_in_process::had0273166695a036 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x64da5831d195 - test::run_test::{{closure}}::h743d09d4bb476605 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x64da582f3bb4 - test::run_test::{{closure}}::he950b8f9118d37e2 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x64da582f3bb4 - std::sys::backtrace::__rust_begin_short_backtrace::hbfaffa6539f6abb7 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x64da582f749a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hcce3c2c65b9c3b20 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x64da582f749a - as core::ops::function::FnOnce<()>>::call_once::hb66b30b6d37985a5 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x64da582f749a - std::panicking::catch_unwind::do_call::h992bbe2c32dc1d79 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x64da582f749a - std::panicking::catch_unwind::h412991d5237de610 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x64da582f749a - std::panic::catch_unwind::ha82b139b3eb5840a [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x64da582f749a - std::thread::Builder::spawn_unchecked_::{{closure}}::ha823b36f5114938e [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x64da582f749a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hf120e7b1db22ac07 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 42: 0x64da58473daf - as core::ops::function::FnOnce>::call_once::h3e049222c99298ac [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 43: 0x64da58473daf - std::sys::pal::unix::thread::Thread::new::thread_start::h942e336943ad5963 [INFO] [stdout] at /rustc/cdb45c87e2cd43495379f7e867e3cc15dcee9f93/library/std/src/sys/pal/unix/thread.rs:118:17 [INFO] [stdout] 44: 0x7da97fe96aa4 - [INFO] [stdout] 45: 0x7da97ff23a34 - 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. 2 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" "60ca68639c4792e1aaddf6f0bca0f3b668ec9ff4976563ea523f93c76140edb0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "60ca68639c4792e1aaddf6f0bca0f3b668ec9ff4976563ea523f93c76140edb0", kill_on_drop: false }` [INFO] [stdout] 60ca68639c4792e1aaddf6f0bca0f3b668ec9ff4976563ea523f93c76140edb0