[INFO] cloning repository https://github.com/lee95292/rust_practice [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lee95292/rust_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flee95292%2Frust_practice", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flee95292%2Frust_practice'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a89166b57749dd0ae1eb6a671c1db05ba445ddd5 [INFO] testing lee95292/rust_practice against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759-retry [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flee95292%2Frust_practice" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/lee95292/rust_practice [INFO] finished tweaking git repo https://github.com/lee95292/rust_practice [INFO] tweaked toml for git repo https://github.com/lee95292/rust_practice written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/lee95292/rust_practice on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/lee95292/rust_practice 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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded proc-macro2 v1.0.64 [INFO] [stderr] Downloaded argh_shared v0.1.10 [INFO] [stderr] Downloaded unicode-ident v1.0.10 [INFO] [stderr] Downloaded itoa v1.0.8 [INFO] [stderr] Downloaded argh_derive v0.1.10 [INFO] [stderr] Downloaded argh v0.1.10 [INFO] [stderr] Downloaded ryu v1.0.14 [INFO] [stderr] Downloaded serde_derive v1.0.171 [INFO] [stderr] Downloaded assert_cmd v0.11.1 [INFO] [stderr] Downloaded console v0.15.7 [INFO] [stderr] Downloaded indicatif v0.16.2 [INFO] [stderr] Downloaded serde_json v1.0.102 [INFO] [stderr] Downloaded escargot v0.4.0 [INFO] [stderr] Downloaded regex v1.9.1 [INFO] [stderr] Downloaded syn v2.0.25 [INFO] [stderr] Downloaded regex-automata v0.3.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a13022173fdd1c52e2423617da2987c1a2e3cd3c9f33613ead3d8df32488750f [INFO] running `Command { std: "docker" "start" "-a" "a13022173fdd1c52e2423617da2987c1a2e3cd3c9f33613ead3d8df32488750f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a13022173fdd1c52e2423617da2987c1a2e3cd3c9f33613ead3d8df32488750f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a13022173fdd1c52e2423617da2987c1a2e3cd3c9f33613ead3d8df32488750f", kill_on_drop: false }` [INFO] [stdout] a13022173fdd1c52e2423617da2987c1a2e3cd3c9f33613ead3d8df32488750f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 37ee66f33477bed6b1d72ce6070bf456ccf988b72098089b6a6cc7b50577dbe6 [INFO] running `Command { std: "docker" "start" "-a" "37ee66f33477bed6b1d72ce6070bf456ccf988b72098089b6a6cc7b50577dbe6", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling proc-macro2 v1.0.64 [INFO] [stderr] Compiling quote v1.0.29 [INFO] [stderr] Compiling unicode-ident v1.0.10 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling serde v1.0.171 [INFO] [stderr] Compiling regex-syntax v0.7.4 [INFO] [stderr] Compiling log v0.4.19 [INFO] [stderr] Compiling serde_json v1.0.102 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling unicode-width v0.1.10 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling argh_shared v0.1.10 [INFO] [stderr] Compiling walkdir v2.3.3 [INFO] [stderr] Compiling ryu v1.0.14 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling itoa v1.0.8 [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stderr] Compiling home v0.5.5 [INFO] [stderr] Compiling slab v0.4.8 [INFO] [stderr] Compiling aho-corasick v1.0.2 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.39 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling filetime v0.2.21 [INFO] [stderr] Compiling console v0.15.7 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling syn v2.0.25 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling regex-automata v0.3.3 [INFO] [stderr] Compiling serde_derive v1.0.171 [INFO] [stderr] Compiling regex v1.9.1 [INFO] [stderr] Compiling argh_derive v0.1.10 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling argh v0.1.10 [INFO] [stderr] Compiling toml v0.5.11 [INFO] [stderr] Compiling rustlings v5.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:110:20 [INFO] [stdout] | [INFO] [stdout] 110 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 110 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 34s [INFO] running `Command { std: "docker" "inspect" "37ee66f33477bed6b1d72ce6070bf456ccf988b72098089b6a6cc7b50577dbe6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "37ee66f33477bed6b1d72ce6070bf456ccf988b72098089b6a6cc7b50577dbe6", kill_on_drop: false }` [INFO] [stdout] 37ee66f33477bed6b1d72ce6070bf456ccf988b72098089b6a6cc7b50577dbe6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 65650c3c9eac10310baa3b3c609943ab05228a99642929725ba1e578abfe608e [INFO] running `Command { std: "docker" "start" "-a" "65650c3c9eac10310baa3b3c609943ab05228a99642929725ba1e578abfe608e", kill_on_drop: false }` [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling predicates-core v1.0.6 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling termtree v0.4.1 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:110:20 [INFO] [stdout] | [INFO] [stdout] 110 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 110 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling predicates-tree v1.0.9 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling predicates v1.0.8 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v5.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stdout] --> src/exercise.rs:110:20 [INFO] [stdout] | [INFO] [stdout] 110 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stdout] | | [INFO] [stdout] | this lifetime flows to the output [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stdout] | [INFO] [stdout] 110 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 10.50s [INFO] running `Command { std: "docker" "inspect" "65650c3c9eac10310baa3b3c609943ab05228a99642929725ba1e578abfe608e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "65650c3c9eac10310baa3b3c609943ab05228a99642929725ba1e578abfe608e", kill_on_drop: false }` [INFO] [stdout] 65650c3c9eac10310baa3b3c609943ab05228a99642929725ba1e578abfe608e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Copt-level=3" "-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" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] f4c01a7a4d34730906918b09f7314a9c699473be3d77165d55ac2b9f71a8ade1 [INFO] running `Command { std: "docker" "start" "-a" "f4c01a7a4d34730906918b09f7314a9c699473be3d77165d55ac2b9f71a8ade1", kill_on_drop: false }` [INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing [INFO] [stderr] --> src/exercise.rs:110:20 [INFO] [stderr] | [INFO] [stderr] 110 | pub fn compile(&self) -> Result { [INFO] [stderr] | ^^^^^ ---------------- the lifetime gets resolved as `'_` [INFO] [stderr] | | [INFO] [stderr] | this lifetime flows to the output [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths [INFO] [stderr] | [INFO] [stderr] 110 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `rustlings` (bin "rustlings" test) generated 1 warning [INFO] [stderr] warning: `rustlings` (bin "rustlings") generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-d8d1a2d91bc26cbf) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test exercise::test::test_finished_exercise ... ok [INFO] [stdout] test exercise::test::test_pending_state ... ok [INFO] [stdout] test exercise::test::test_clean ... FAILED [INFO] [stdout] test exercise::test::test_exercise_with_output ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_clean stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'exercise::test::test_clean' panicked at src/exercise.rs:273:36: [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: 0x59d27e1c6132 - std::backtrace_rs::backtrace::libunwind::trace::hd39b1f53d3cf9745 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x59d27e1c6132 - std::backtrace_rs::backtrace::trace_unsynchronized::he91d9a75d4e3972b [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x59d27e1c6132 - std::sys::backtrace::_print_fmt::hca46938f8c6e22cf [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x59d27e1c6132 - ::fmt::ha499add612cccf8e [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x59d27e1ec033 - core::fmt::rt::Argument::fmt::hd21145b75a833b7a [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x59d27e1ec033 - core::fmt::write::hb10c956f5235c8a4 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/fmt/mod.rs:1465:25 [INFO] [stdout] 6: 0x59d27e1c3253 - std::io::default_write_fmt::hdb7615052be2ba4d [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x59d27e1c3253 - std::io::Write::write_fmt::he1bcd251ec6e4153 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x59d27e1c5f82 - std::sys::backtrace::BacktraceLock::print::hb47c770ef659fd10 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x59d27e1c775c - std::panicking::default_hook::{{closure}}::hdda8afb9d457a22c [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:300:27 [INFO] [stdout] 10: 0x59d27e1c75b2 - std::panicking::default_hook::h7c46b44874fe5c9a [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x59d27e0d7a04 - as core::ops::function::Fn>::call::h178a5fcedee41e2f [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 12: 0x59d27e0d7a04 - test::test_main_with_exit_callback::{{closure}}::h951a41e0149d6d5d [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x59d27e1c823b - as core::ops::function::Fn>::call::h13602080f5b63276 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 14: 0x59d27e1c823b - std::panicking::rust_panic_with_hook::ha6cb99ed099eb1c5 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x59d27e1c7f0a - std::panicking::begin_panic_handler::{{closure}}::he11808bc797ee921 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x59d27e1c6639 - std::sys::backtrace::__rust_end_short_backtrace::h9418807cb7346258 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x59d27e1c7b9d - __rustc[18fb429eef004894]::rust_begin_unwind [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x59d27e1ea870 - core::panicking::panic_fmt::hd890aeb12c3a3fc3 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x59d27e1eac16 - core::result::unwrap_failed::h31c9775ec1a50121 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/result.rs:1761:5 [INFO] [stdout] 20: 0x59d27e097c34 - core::result::Result::unwrap::h14d275e97727d9ba [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/result.rs:1167:23 [INFO] [stdout] 21: 0x59d27e097c34 - rustlings::exercise::test::test_clean::he07cc73d17b91f7f [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:273:36 [INFO] [stdout] 22: 0x59d27e09c0c9 - rustlings::exercise::test::test_clean::{{closure}}::h724a1e7b983064d3 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:272:20 [INFO] [stdout] 23: 0x59d27e09c0c9 - core::ops::function::FnOnce::call_once::h017eb45db15ec439 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x59d27e0dd18b - core::ops::function::FnOnce::call_once::h2869fb5b0a2b0bdc [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x59d27e0dd18b - test::__rust_begin_short_backtrace::h7dd7142bd62fa711 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:648:18 [INFO] [stdout] 26: 0x59d27e0dc37e - test::run_test_in_process::{{closure}}::h43a753f038d36b3f [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:671:74 [INFO] [stdout] 27: 0x59d27e0dc37e - as core::ops::function::FnOnce<()>>::call_once::h0ca95dd3e12d1e16 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x59d27e0dc37e - std::panicking::catch_unwind::do_call::he308587d70ac34ba [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x59d27e0dc37e - std::panicking::catch_unwind::h30dcba31973e8fb0 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x59d27e0dc37e - std::panic::catch_unwind::hfb68364e5621fbee [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x59d27e0dc37e - test::run_test_in_process::hcdcc2977903b998a [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:671:27 [INFO] [stdout] 32: 0x59d27e0dc37e - test::run_test::{{closure}}::h544a6550958c5d14 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:592:43 [INFO] [stdout] 33: 0x59d27e09fef4 - test::run_test::{{closure}}::hb172e48ebe2b92c7 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:622:41 [INFO] [stdout] 34: 0x59d27e09fef4 - std::sys::backtrace::__rust_begin_short_backtrace::h7e79d8706638bea0 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x59d27e0a38ca - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc4a275f1e71b8ab0 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x59d27e0a38ca - as core::ops::function::FnOnce<()>>::call_once::h01ed0d242df78cfd [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x59d27e0a38ca - std::panicking::catch_unwind::do_call::h052f373fb905fee0 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x59d27e0a38ca - std::panicking::catch_unwind::hb425d20c8ffb09c8 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x59d27e0a38ca - std::panic::catch_unwind::ha0d5dfbf18fdeda5 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x59d27e0a38ca - std::thread::Builder::spawn_unchecked_::{{closure}}::hbe79182bd37949c7 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x59d27e0a38ca - core::ops::function::FnOnce::call_once{{vtable.shim}}::hc096c4a06972fde5 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x59d27e1cb197 - as core::ops::function::FnOnce>::call_once::h47377e27fb938a26 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1971:9 [INFO] [stdout] 43: 0x59d27e1cb197 - as core::ops::function::FnOnce>::call_once::h72f1fe5d095abf57 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1971:9 [INFO] [stdout] 44: 0x59d27e1cb197 - std::sys::pal::unix::thread::Thread::new::thread_start::h0a4d8e1b9c0d38cf [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/pal/unix/thread.rs:97:17 [INFO] [stdout] 45: 0x74b716eb7aa4 - [INFO] [stdout] 46: 0x74b716f44a34 - clone [INFO] [stdout] 47: 0x0 - [INFO] [stdout] [INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'exercise::test::test_exercise_with_output' panicked at src/exercise.rs:346:38: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: ExerciseOutput { stdout: "", stderr: "\u{1b}[0m\u{1b}[1m\u{1b}[38;5;9merror\u{1b}[0m\u{1b}[0m\u{1b}[1m: couldn't create a temp dir: Read-only file system (os error 30) at path \"/opt/rustwide/workdir/./rmetazYEihT\"\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: 0x59d27e1c6132 - std::backtrace_rs::backtrace::libunwind::trace::hd39b1f53d3cf9745 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x59d27e1c6132 - std::backtrace_rs::backtrace::trace_unsynchronized::he91d9a75d4e3972b [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x59d27e1c6132 - std::sys::backtrace::_print_fmt::hca46938f8c6e22cf [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x59d27e1c6132 - ::fmt::ha499add612cccf8e [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x59d27e1ec033 - core::fmt::rt::Argument::fmt::hd21145b75a833b7a [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x59d27e1ec033 - core::fmt::write::hb10c956f5235c8a4 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/fmt/mod.rs:1465:25 [INFO] [stdout] 6: 0x59d27e1c3253 - std::io::default_write_fmt::hdb7615052be2ba4d [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x59d27e1c3253 - std::io::Write::write_fmt::he1bcd251ec6e4153 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x59d27e1c5f82 - std::sys::backtrace::BacktraceLock::print::hb47c770ef659fd10 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x59d27e1c775c - std::panicking::default_hook::{{closure}}::hdda8afb9d457a22c [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:300:27 [INFO] [stdout] 10: 0x59d27e1c75b2 - std::panicking::default_hook::h7c46b44874fe5c9a [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:324:9 [INFO] [stdout] 11: 0x59d27e0d7a04 - as core::ops::function::Fn>::call::h178a5fcedee41e2f [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 12: 0x59d27e0d7a04 - test::test_main_with_exit_callback::{{closure}}::h951a41e0149d6d5d [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x59d27e1c823b - as core::ops::function::Fn>::call::h13602080f5b63276 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 14: 0x59d27e1c823b - std::panicking::rust_panic_with_hook::ha6cb99ed099eb1c5 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:841:13 [INFO] [stdout] 15: 0x59d27e1c7f0a - std::panicking::begin_panic_handler::{{closure}}::he11808bc797ee921 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:706:13 [INFO] [stdout] 16: 0x59d27e1c6639 - std::sys::backtrace::__rust_end_short_backtrace::h9418807cb7346258 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:168:18 [INFO] [stdout] 17: 0x59d27e1c7b9d - __rustc[18fb429eef004894]::rust_begin_unwind [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:697:5 [INFO] [stdout] 18: 0x59d27e1ea870 - core::panicking::panic_fmt::hd890aeb12c3a3fc3 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x59d27e1eac16 - core::result::unwrap_failed::h31c9775ec1a50121 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/result.rs:1761:5 [INFO] [stdout] 20: 0x59d27e098cef - core::result::Result::unwrap::h3357bc864216b63e [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/result.rs:1167:23 [INFO] [stdout] 21: 0x59d27e098cef - rustlings::exercise::test::test_exercise_with_output::he26d3cf229ecfed5 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:346:38 [INFO] [stdout] 22: 0x59d27e09c129 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hf0573994fe0ec78d [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:339:35 [INFO] [stdout] 23: 0x59d27e09c129 - core::ops::function::FnOnce::call_once::hcaa22a34d4fb6b49 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x59d27e0dd18b - core::ops::function::FnOnce::call_once::h2869fb5b0a2b0bdc [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x59d27e0dd18b - test::__rust_begin_short_backtrace::h7dd7142bd62fa711 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:648:18 [INFO] [stdout] 26: 0x59d27e0dc37e - test::run_test_in_process::{{closure}}::h43a753f038d36b3f [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:671:74 [INFO] [stdout] 27: 0x59d27e0dc37e - as core::ops::function::FnOnce<()>>::call_once::h0ca95dd3e12d1e16 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x59d27e0dc37e - std::panicking::catch_unwind::do_call::he308587d70ac34ba [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:589:40 [INFO] [stdout] 29: 0x59d27e0dc37e - std::panicking::catch_unwind::h30dcba31973e8fb0 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:552:19 [INFO] [stdout] 30: 0x59d27e0dc37e - std::panic::catch_unwind::hfb68364e5621fbee [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x59d27e0dc37e - test::run_test_in_process::hcdcc2977903b998a [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:671:27 [INFO] [stdout] 32: 0x59d27e0dc37e - test::run_test::{{closure}}::h544a6550958c5d14 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:592:43 [INFO] [stdout] 33: 0x59d27e09fef4 - test::run_test::{{closure}}::hb172e48ebe2b92c7 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/test/src/lib.rs:622:41 [INFO] [stdout] 34: 0x59d27e09fef4 - std::sys::backtrace::__rust_begin_short_backtrace::h7e79d8706638bea0 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/backtrace.rs:152:18 [INFO] [stdout] 35: 0x59d27e0a38ca - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc4a275f1e71b8ab0 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x59d27e0a38ca - as core::ops::function::FnOnce<()>>::call_once::h01ed0d242df78cfd [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x59d27e0a38ca - std::panicking::catch_unwind::do_call::h052f373fb905fee0 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:589:40 [INFO] [stdout] 38: 0x59d27e0a38ca - std::panicking::catch_unwind::hb425d20c8ffb09c8 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panicking.rs:552:19 [INFO] [stdout] 39: 0x59d27e0a38ca - std::panic::catch_unwind::ha0d5dfbf18fdeda5 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x59d27e0a38ca - std::thread::Builder::spawn_unchecked_::{{closure}}::hbe79182bd37949c7 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x59d27e0a38ca - core::ops::function::FnOnce::call_once{{vtable.shim}}::hc096c4a06972fde5 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x59d27e1cb197 - as core::ops::function::FnOnce>::call_once::h47377e27fb938a26 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1971:9 [INFO] [stdout] 43: 0x59d27e1cb197 - as core::ops::function::FnOnce>::call_once::h72f1fe5d095abf57 [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/alloc/src/boxed.rs:1971:9 [INFO] [stdout] 44: 0x59d27e1cb197 - std::sys::pal::unix::thread::Thread::new::thread_start::h0a4d8e1b9c0d38cf [INFO] [stdout] at /rustc/d98a5da813da67eb189387b8ccfb73cf481275d8/library/std/src/sys/pal/unix/thread.rs:97:17 [INFO] [stdout] 45: 0x74b716eb7aa4 - [INFO] [stdout] 46: 0x74b716f44a34 - clone [INFO] [stdout] 47: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] exercise::test::test_clean [INFO] [stdout] exercise::test::test_exercise_with_output [INFO] [stdout] [INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "f4c01a7a4d34730906918b09f7314a9c699473be3d77165d55ac2b9f71a8ade1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f4c01a7a4d34730906918b09f7314a9c699473be3d77165d55ac2b9f71a8ade1", kill_on_drop: false }` [INFO] [stdout] f4c01a7a4d34730906918b09f7314a9c699473be3d77165d55ac2b9f71a8ade1