[INFO] cloning repository https://github.com/miaochenlu/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/miaochenlu/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiaochenlu%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiaochenlu%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 53ce8c842a63b4bfa4970bc582c521d02d67e7d3 [INFO] testing miaochenlu/rustlings against try#2440211fe03bc45c89b6dc1a3df18382ce91e32b for pr-146098-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmiaochenlu%2Frustlings" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/miaochenlu/rustlings [INFO] finished tweaking git repo https://github.com/miaochenlu/rustlings [INFO] tweaked toml for git repo https://github.com/miaochenlu/rustlings written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/miaochenlu/rustlings on toolchain 2440211fe03bc45c89b6dc1a3df18382ce91e32b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/miaochenlu/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" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 329ec213cc8678f4cd99d6940506b1e4a401b2198b13c3ae4972b19c4b68f4ba [INFO] running `Command { std: "docker" "start" "-a" "329ec213cc8678f4cd99d6940506b1e4a401b2198b13c3ae4972b19c4b68f4ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "329ec213cc8678f4cd99d6940506b1e4a401b2198b13c3ae4972b19c4b68f4ba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "329ec213cc8678f4cd99d6940506b1e4a401b2198b13c3ae4972b19c4b68f4ba", kill_on_drop: false }` [INFO] [stdout] 329ec213cc8678f4cd99d6940506b1e4a401b2198b13c3ae4972b19c4b68f4ba [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f630fb92cdb4f0fdab8e83e71df3b2daaf11a274e2b2149b666a208afd6cac66 [INFO] running `Command { std: "docker" "start" "-a" "f630fb92cdb4f0fdab8e83e71df3b2daaf11a274e2b2149b666a208afd6cac66", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling serde_json v1.0.81 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling itoa v1.0.2 [INFO] [stderr] Compiling regex v1.5.5 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling home v0.5.3 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling console v0.15.0 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.5.9 [INFO] [stderr] Compiling rustlings v5.4.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:110:20 [INFO] [stdout] | [INFO] [stdout] 110 | 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] 110 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.47s [INFO] running `Command { std: "docker" "inspect" "f630fb92cdb4f0fdab8e83e71df3b2daaf11a274e2b2149b666a208afd6cac66", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f630fb92cdb4f0fdab8e83e71df3b2daaf11a274e2b2149b666a208afd6cac66", kill_on_drop: false }` [INFO] [stdout] f630fb92cdb4f0fdab8e83e71df3b2daaf11a274e2b2149b666a208afd6cac66 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0f4032429dd997377109486f57a4f39742c7b2fdf20484c348fca4724e20c5ad [INFO] running `Command { std: "docker" "start" "-a" "0f4032429dd997377109486f57a4f39742c7b2fdf20484c348fca4724e20c5ad", kill_on_drop: false }` [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:110:20 [INFO] [stdout] | [INFO] [stdout] 110 | 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] 110 | 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 v5.4.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:110:20 [INFO] [stdout] | [INFO] [stdout] 110 | 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] 110 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 3.95s [INFO] running `Command { std: "docker" "inspect" "0f4032429dd997377109486f57a4f39742c7b2fdf20484c348fca4724e20c5ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0f4032429dd997377109486f57a4f39742c7b2fdf20484c348fca4724e20c5ad", kill_on_drop: false }` [INFO] [stdout] 0f4032429dd997377109486f57a4f39742c7b2fdf20484c348fca4724e20c5ad [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+2440211fe03bc45c89b6dc1a3df18382ce91e32b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 16ae7e929fee03dfb2aba7dc33d350560bbec36e1a33af80fdaa0d1ccd2627c1 [INFO] running `Command { std: "docker" "start" "-a" "16ae7e929fee03dfb2aba7dc33d350560bbec36e1a33af80fdaa0d1ccd2627c1", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/exercise.rs:110:20 [INFO] [stderr] | [INFO] [stderr] 110 | 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] 110 | 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 0.10s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-cb9347ffdf3e498a) [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' (25) panicked at src/exercise.rs:273:36: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5b353b7d2a12 - std::backtrace_rs::backtrace::libunwind::trace::h22a6a535a50603c6 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x5b353b7d2a12 - std::backtrace_rs::backtrace::trace_unsynchronized::h2503a4f30dbfbaa2 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x5b353b7d2a12 - std::sys::backtrace::_print_fmt::hec54e31f36456895 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5b353b7d2a12 - ::fmt::hb1988e8b50fa5f19 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5b353b7e388f - core::fmt::rt::Argument::fmt::h3118a66e1a57a586 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x5b353b7e388f - core::fmt::write::hcd056e06a609f600 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x5b353b79f421 - std::io::default_write_fmt::hdabc5d6505cb374b [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x5b353b79f421 - std::io::Write::write_fmt::h18c82179fdc1f9d2 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x5b353b7ab9d2 - std::sys::backtrace::BacktraceLock::print::h69f50ba7cfff8317 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x5b353b7b05cf - std::panicking::default_hook::{{closure}}::hfa978eb2255ab3ab [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x5b353b7b0461 - std::panicking::default_hook::h09da2eaf8f1deadd [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x5b353b63b80e - as core::ops::function::Fn>::call::h1697e4d80f236ef6 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/alloc/src/boxed.rs:1987:9 [INFO] [stdout] 12: 0x5b353b63b80e - test::test_main_with_exit_callback::{{closure}}::h8f63929ca9fd483b [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x5b353b7b0c8f - as core::ops::function::Fn>::call::hba67e0dc3e3fc548 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/alloc/src/boxed.rs:1987:9 [INFO] [stdout] 14: 0x5b353b7b0c8f - std::panicking::panic_with_hook::h13c40d280d130fd3 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x5b353b7b0aea - std::panicking::panic_handler::{{closure}}::hd79d22e8a1d3b951 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x5b353b7abb19 - std::sys::backtrace::__rust_end_short_backtrace::h83414d1ec69cf3a6 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x5b353b793a0d - __rustc[b78aa6c7b08e5dc4]::rust_begin_unwind [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x5b353b7ebc50 - core::panicking::panic_fmt::h326b75cf8ee01b13 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/panicking.rs:78:14 [INFO] [stdout] 19: 0x5b353b7eb076 - core::result::unwrap_failed::h38baee32fdec5ac8 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/result.rs:1855:5 [INFO] [stdout] 20: 0x5b353b60e6dc - core::result::Result::unwrap::h2aaed68124aa833d [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/result.rs:1226:23 [INFO] [stdout] 21: 0x5b353b60e6dc - rustlings::exercise::test::test_clean::h491fdea40e938037 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:273:36 [INFO] [stdout] 22: 0x5b353b60eab7 - rustlings::exercise::test::test_clean::{{closure}}::hbab23c95a2055d84 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:272:20 [INFO] [stdout] 23: 0x5b353b6120c6 - core::ops::function::FnOnce::call_once::h40b0fd67450a0ad4 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5b353b63b5eb - core::ops::function::FnOnce::call_once::he420dad47d9aac14 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x5b353b63b5eb - test::__rust_begin_short_backtrace::h51976f55c263f7c2 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x5b353b651215 - test::run_test_in_process::{{closure}}::h6aa4339396d33320 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x5b353b651215 - as core::ops::function::FnOnce<()>>::call_once::h5bd0ba3863a53529 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x5b353b651215 - std::panicking::catch_unwind::do_call::h5c710722c40c5839 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x5b353b651215 - std::panicking::catch_unwind::hf41b5be070ce0f19 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x5b353b651215 - std::panic::catch_unwind::h4559aa103e6f16d6 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x5b353b651215 - test::run_test_in_process::he6fd763a772ff213 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x5b353b651215 - test::run_test::{{closure}}::he46f5435849feb5b [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x5b353b627a24 - test::run_test::{{closure}}::h12a66289c31b502a [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x5b353b627a24 - std::sys::backtrace::__rust_begin_short_backtrace::h614a7925ed7b2f5e [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x5b353b62b3ca - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hbc654088c5dbff36 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x5b353b62b3ca - as core::ops::function::FnOnce<()>>::call_once::h3f631d2ca531b61d [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x5b353b62b3ca - std::panicking::catch_unwind::do_call::hd2548748db0aa717 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x5b353b62b3ca - std::panicking::catch_unwind::hf7d8620d84df48e2 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x5b353b62b3ca - std::panic::catch_unwind::hdde75b8543fcb96b [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x5b353b62b3ca - std::thread::Builder::spawn_unchecked_::{{closure}}::h991e7d03b432cf3f [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x5b353b62b3ca - core::ops::function::FnOnce::call_once{{vtable.shim}}::hebddb40255441657 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x5b353b7a6b6f - as core::ops::function::FnOnce>::call_once::h55e8930dc7db99a5 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/alloc/src/boxed.rs:1973:9 [INFO] [stdout] 43: 0x5b353b7a6b6f - std::sys::thread::unix::Thread::new::thread_start::he23d038ee4fa004e [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/thread/unix.rs:126:17 [INFO] [stdout] 44: 0x70fec8d88aa4 - [INFO] [stdout] 45: 0x70fec8e15a34 - 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' (26) 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/./rmetaO7wr3Y\"\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: 0x5b353b7d2a12 - std::backtrace_rs::backtrace::libunwind::trace::h22a6a535a50603c6 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x5b353b7d2a12 - std::backtrace_rs::backtrace::trace_unsynchronized::h2503a4f30dbfbaa2 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x5b353b7d2a12 - std::sys::backtrace::_print_fmt::hec54e31f36456895 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5b353b7d2a12 - ::fmt::hb1988e8b50fa5f19 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5b353b7e388f - core::fmt::rt::Argument::fmt::h3118a66e1a57a586 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x5b353b7e388f - core::fmt::write::hcd056e06a609f600 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x5b353b79f421 - std::io::default_write_fmt::hdabc5d6505cb374b [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x5b353b79f421 - std::io::Write::write_fmt::h18c82179fdc1f9d2 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x5b353b7ab9d2 - std::sys::backtrace::BacktraceLock::print::h69f50ba7cfff8317 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x5b353b7b05cf - std::panicking::default_hook::{{closure}}::hfa978eb2255ab3ab [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x5b353b7b0461 - std::panicking::default_hook::h09da2eaf8f1deadd [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x5b353b63b80e - as core::ops::function::Fn>::call::h1697e4d80f236ef6 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/alloc/src/boxed.rs:1987:9 [INFO] [stdout] 12: 0x5b353b63b80e - test::test_main_with_exit_callback::{{closure}}::h8f63929ca9fd483b [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x5b353b7b0c8f - as core::ops::function::Fn>::call::hba67e0dc3e3fc548 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/alloc/src/boxed.rs:1987:9 [INFO] [stdout] 14: 0x5b353b7b0c8f - std::panicking::panic_with_hook::h13c40d280d130fd3 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x5b353b7b0aea - std::panicking::panic_handler::{{closure}}::hd79d22e8a1d3b951 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x5b353b7abb19 - std::sys::backtrace::__rust_end_short_backtrace::h83414d1ec69cf3a6 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x5b353b793a0d - __rustc[b78aa6c7b08e5dc4]::rust_begin_unwind [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x5b353b7ebc50 - core::panicking::panic_fmt::h326b75cf8ee01b13 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/panicking.rs:78:14 [INFO] [stdout] 19: 0x5b353b7eb076 - core::result::unwrap_failed::h38baee32fdec5ac8 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/result.rs:1855:5 [INFO] [stdout] 20: 0x5b353b60f528 - core::result::Result::unwrap::h5f3ad51fa78a7f8c [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/result.rs:1226:23 [INFO] [stdout] 21: 0x5b353b60f528 - rustlings::exercise::test::test_exercise_with_output::h4d78e3a933141b0d [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:346:38 [INFO] [stdout] 22: 0x5b353b60f7a7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h922fd91f6536a912 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:339:35 [INFO] [stdout] 23: 0x5b353b612036 - core::ops::function::FnOnce::call_once::h0b3f0dfdf1f02cac [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5b353b63b5eb - core::ops::function::FnOnce::call_once::he420dad47d9aac14 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x5b353b63b5eb - test::__rust_begin_short_backtrace::h51976f55c263f7c2 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x5b353b651215 - test::run_test_in_process::{{closure}}::h6aa4339396d33320 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x5b353b651215 - as core::ops::function::FnOnce<()>>::call_once::h5bd0ba3863a53529 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x5b353b651215 - std::panicking::catch_unwind::do_call::h5c710722c40c5839 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x5b353b651215 - std::panicking::catch_unwind::hf41b5be070ce0f19 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x5b353b651215 - std::panic::catch_unwind::h4559aa103e6f16d6 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x5b353b651215 - test::run_test_in_process::he6fd763a772ff213 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x5b353b651215 - test::run_test::{{closure}}::he46f5435849feb5b [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x5b353b627a24 - test::run_test::{{closure}}::h12a66289c31b502a [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x5b353b627a24 - std::sys::backtrace::__rust_begin_short_backtrace::h614a7925ed7b2f5e [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x5b353b62b3ca - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hbc654088c5dbff36 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x5b353b62b3ca - as core::ops::function::FnOnce<()>>::call_once::h3f631d2ca531b61d [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x5b353b62b3ca - std::panicking::catch_unwind::do_call::hd2548748db0aa717 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x5b353b62b3ca - std::panicking::catch_unwind::hf7d8620d84df48e2 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x5b353b62b3ca - std::panic::catch_unwind::hdde75b8543fcb96b [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x5b353b62b3ca - std::thread::Builder::spawn_unchecked_::{{closure}}::h991e7d03b432cf3f [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x5b353b62b3ca - core::ops::function::FnOnce::call_once{{vtable.shim}}::hebddb40255441657 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x5b353b7a6b6f - as core::ops::function::FnOnce>::call_once::h55e8930dc7db99a5 [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/alloc/src/boxed.rs:1973:9 [INFO] [stdout] 43: 0x5b353b7a6b6f - std::sys::thread::unix::Thread::new::thread_start::he23d038ee4fa004e [INFO] [stdout] at /rustc/2440211fe03bc45c89b6dc1a3df18382ce91e32b/library/std/src/sys/thread/unix.rs:126:17 [INFO] [stdout] 44: 0x70fec8d88aa4 - [INFO] [stdout] 45: 0x70fec8e15a34 - 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" "16ae7e929fee03dfb2aba7dc33d350560bbec36e1a33af80fdaa0d1ccd2627c1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "16ae7e929fee03dfb2aba7dc33d350560bbec36e1a33af80fdaa0d1ccd2627c1", kill_on_drop: false }` [INFO] [stdout] 16ae7e929fee03dfb2aba7dc33d350560bbec36e1a33af80fdaa0d1ccd2627c1