[INFO] cloning repository https://github.com/LearningOS/rust-rustlings-2023-autumn-Hades-gsl [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LearningOS/rust-rustlings-2023-autumn-Hades-gsl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2023-autumn-Hades-gsl", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2023-autumn-Hades-gsl'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 4391bc3399126dfa63c86686efbb2e9b4e98d08d [INFO] testing LearningOS/rust-rustlings-2023-autumn-Hades-gsl against try#311784882baa42a9638298cb325fa01a062c9d0f+cargoflags=-Zbuild-dir-new-layout for pr-149852 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLearningOS%2Frust-rustlings-2023-autumn-Hades-gsl" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-Hades-gsl [INFO] finished tweaking git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-Hades-gsl [INFO] tweaked toml for git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-Hades-gsl written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-Hades-gsl on toolchain 311784882baa42a9638298cb325fa01a062c9d0f [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/LearningOS/rust-rustlings-2023-autumn-Hades-gsl 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" "+311784882baa42a9638298cb325fa01a062c9d0f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a359e174fd78aa5e0672d10ed61f46ed84cac6f92d1b8d797d3d6dae4bdb5ea7 [INFO] running `Command { std: "docker" "start" "-a" "a359e174fd78aa5e0672d10ed61f46ed84cac6f92d1b8d797d3d6dae4bdb5ea7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a359e174fd78aa5e0672d10ed61f46ed84cac6f92d1b8d797d3d6dae4bdb5ea7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a359e174fd78aa5e0672d10ed61f46ed84cac6f92d1b8d797d3d6dae4bdb5ea7", kill_on_drop: false }` [INFO] [stdout] a359e174fd78aa5e0672d10ed61f46ed84cac6f92d1b8d797d3d6dae4bdb5ea7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "build" "--frozen" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }` [INFO] [stdout] 9736b26a918712c1753a2f9541824d0ac85778a78e600334d9c4889ff8a5763a [INFO] running `Command { std: "docker" "start" "-a" "9736b26a918712c1753a2f9541824d0ac85778a78e600334d9c4889ff8a5763a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.147 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling proc-macro2 v1.0.64 [INFO] [stderr] Compiling unicode-ident v1.0.10 [INFO] [stderr] Compiling quote v1.0.29 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Compiling serde v1.0.171 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling regex-syntax v0.7.4 [INFO] [stderr] Compiling smallvec v1.11.0 [INFO] [stderr] Compiling log v0.4.19 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling argh_shared v0.1.10 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling unicode-width v0.1.10 [INFO] [stderr] Compiling serde_json v1.0.102 [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 pin-project-lite v0.2.10 [INFO] [stderr] Compiling bytes v1.4.0 [INFO] [stderr] Compiling glob v0.3.1 [INFO] [stderr] Compiling home v0.5.5 [INFO] [stderr] Compiling slab v0.4.8 [INFO] [stderr] Compiling lock_api v0.4.10 [INFO] [stderr] Compiling tokio v1.29.1 [INFO] [stderr] Compiling aho-corasick v1.0.2 [INFO] [stderr] Compiling net2 v0.2.39 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling mio v0.8.8 [INFO] [stderr] Compiling num_cpus v1.16.0 [INFO] [stderr] Compiling signal-hook-registry v1.4.1 [INFO] [stderr] Compiling socket2 v0.4.9 [INFO] [stderr] Compiling filetime v0.2.21 [INFO] [stderr] Compiling console v0.15.7 [INFO] [stderr] Compiling parking_lot v0.12.1 [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 argh_derive v0.1.10 [INFO] [stderr] Compiling argh v0.1.10 [INFO] [stderr] Compiling serde_derive v1.0.171 [INFO] [stderr] Compiling tokio-macros v2.1.0 [INFO] [stderr] Compiling regex v1.9.1 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling toml v0.5.11 [INFO] [stderr] Compiling rustlings v5.5.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:113:20 [INFO] [stdout] | [INFO] [stdout] 113 | 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] 113 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.23s [INFO] running `Command { std: "docker" "inspect" "9736b26a918712c1753a2f9541824d0ac85778a78e600334d9c4889ff8a5763a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9736b26a918712c1753a2f9541824d0ac85778a78e600334d9c4889ff8a5763a", kill_on_drop: false }` [INFO] [stdout] 9736b26a918712c1753a2f9541824d0ac85778a78e600334d9c4889ff8a5763a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "test" "--frozen" "--no-run" "--message-format=json" "-Zbuild-dir-new-layout", kill_on_drop: false }` [INFO] [stdout] 37b9f2e198654c9398e0d8dabc7dfe3c32e803f9c43af254be2bea028a4e78db [INFO] running `Command { std: "docker" "start" "-a" "37b9f2e198654c9398e0d8dabc7dfe3c32e803f9c43af254be2bea028a4e78db", 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 difference v2.0.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling termtree v0.4.1 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:113:20 [INFO] [stdout] | [INFO] [stdout] 113 | 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] 113 | 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: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:113:20 [INFO] [stdout] | [INFO] [stdout] 113 | 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] 113 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 4.99s [INFO] running `Command { std: "docker" "inspect" "37b9f2e198654c9398e0d8dabc7dfe3c32e803f9c43af254be2bea028a4e78db", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "37b9f2e198654c9398e0d8dabc7dfe3c32e803f9c43af254be2bea028a4e78db", kill_on_drop: false }` [INFO] [stdout] 37b9f2e198654c9398e0d8dabc7dfe3c32e803f9c43af254be2bea028a4e78db [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+311784882baa42a9638298cb325fa01a062c9d0f" "test" "--frozen" "-Zbuild-dir-new-layout", kill_on_drop: false }` [INFO] [stdout] e1a216799e1edb4cef2fa129db5ba060ff92b6266b3084de3b2c2299f6ea5eba [INFO] running `Command { std: "docker" "start" "-a" "e1a216799e1edb4cef2fa129db5ba060ff92b6266b3084de3b2c2299f6ea5eba", kill_on_drop: false }` [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/exercise.rs:113:20 [INFO] [stderr] | [INFO] [stderr] 113 | 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] 113 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `rustlings` (bin "rustlings") generated 1 warning (run `cargo fix --bin "rustlings" -p rustlings` to apply 1 suggestion) [INFO] [stderr] warning: `rustlings` (bin "rustlings" test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.18s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/build/rustlings/ddf62adac1d73eef/deps/rustlings-ddf62adac1d73eef) [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:303:36: [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: 0x5e3a778df012 - std[7ec1163218fd4288]::backtrace_rs::backtrace::libunwind::trace [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x5e3a778df012 - std[7ec1163218fd4288]::backtrace_rs::backtrace::trace_unsynchronized:: [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x5e3a778df012 - std[7ec1163218fd4288]::sys::backtrace::_print_fmt [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/backtrace.rs:68:9 [INFO] [stdout] 3: 0x5e3a778df012 - <::print::DisplayBacktrace as core[784384805ecffc2c]::fmt::Display>::fmt [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/backtrace.rs:38:26 [INFO] [stdout] 4: 0x5e3a778f4ce7 - ::fmt [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/fmt/rt.rs:152:76 [INFO] [stdout] 5: 0x5e3a778f4ce7 - core[784384805ecffc2c]::fmt::write [INFO] [stdout] 6: 0x5e3a778e3f26 - std[7ec1163218fd4288]::io::default_write_fmt::> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/io/mod.rs:614:11 [INFO] [stdout] 7: 0x5e3a778e3f26 - as std[7ec1163218fd4288]::io::Write>::write_fmt [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/io/mod.rs:1969:13 [INFO] [stdout] 8: 0x5e3a778bd44f - ::print [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/backtrace.rs:41:9 [INFO] [stdout] 9: 0x5e3a778bd44f - std[7ec1163218fd4288]::panicking::default_hook::{closure#0} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:292:27 [INFO] [stdout] 10: 0x5e3a778d7059 - std[7ec1163218fd4288]::panicking::default_hook [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:316:9 [INFO] [stdout] 11: 0x5e3a7766541e - core[784384805ecffc2c]::ops::function::Fn<(&'a std[7ec1163218fd4288]::panic::PanicHookInfo<'b>,), Output = ()> + core[784384805ecffc2c]::marker::Sync + core[784384805ecffc2c]::marker::Send> as core[784384805ecffc2c]::ops::function::Fn<(&std[7ec1163218fd4288]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 12: 0x5e3a7766541e - test[370c4ac83c3338cc]::test_main_with_exit_callback::::{closure#0} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x5e3a778d7212 - core[784384805ecffc2c]::ops::function::Fn<(&'a std[7ec1163218fd4288]::panic::PanicHookInfo<'b>,), Output = ()> + core[784384805ecffc2c]::marker::Sync + core[784384805ecffc2c]::marker::Send> as core[784384805ecffc2c]::ops::function::Fn<(&std[7ec1163218fd4288]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 14: 0x5e3a778d7212 - std[7ec1163218fd4288]::panicking::panic_with_hook [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:833:13 [INFO] [stdout] 15: 0x5e3a778bd508 - std[7ec1163218fd4288]::panicking::panic_handler::{closure#0} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:698:13 [INFO] [stdout] 16: 0x5e3a778b2589 - std[7ec1163218fd4288]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/backtrace.rs:176:18 [INFO] [stdout] 17: 0x5e3a778be43d - __rustc[cbcfe5aadef28f7f]::rust_begin_unwind [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:689:5 [INFO] [stdout] 18: 0x5e3a778f542c - core[784384805ecffc2c]::panicking::panic_fmt [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/panicking.rs:80:14 [INFO] [stdout] 19: 0x5e3a778f51a2 - core[784384805ecffc2c]::result::unwrap_failed [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/result.rs:1867:5 [INFO] [stdout] 20: 0x5e3a7764c7fc - >::unwrap [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/result.rs:1233:23 [INFO] [stdout] 21: 0x5e3a7764c7fc - rustlings[af20ef9ed1b9efdf]::exercise::test::test_clean [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:303:36 [INFO] [stdout] 22: 0x5e3a776495c7 - rustlings[af20ef9ed1b9efdf]::exercise::test::test_clean::{closure#0} [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:302:20 [INFO] [stdout] 23: 0x5e3a77652a26 - >::call_once [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5e3a7765974b - core[784384805ecffc2c]::result::Result<(), alloc[a1c94c07e218b93e]::string::String> as core[784384805ecffc2c]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x5e3a7765974b - test[370c4ac83c3338cc]::__rust_begin_short_backtrace::, fn() -> core[784384805ecffc2c]::result::Result<(), alloc[a1c94c07e218b93e]::string::String>> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x5e3a7766602a - test[370c4ac83c3338cc]::run_test_in_process::{closure#0} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x5e3a7766602a - as core[784384805ecffc2c]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x5e3a7766602a - std[7ec1163218fd4288]::panicking::catch_unwind::do_call::, core[784384805ecffc2c]::result::Result<(), alloc[a1c94c07e218b93e]::string::String>> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:581:40 [INFO] [stdout] 29: 0x5e3a7766602a - std[7ec1163218fd4288]::panicking::catch_unwind::, core[784384805ecffc2c]::panic::unwind_safe::AssertUnwindSafe> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:544:19 [INFO] [stdout] 30: 0x5e3a7766602a - std[7ec1163218fd4288]::panic::catch_unwind::, core[784384805ecffc2c]::result::Result<(), alloc[a1c94c07e218b93e]::string::String>> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x5e3a7766602a - test[370c4ac83c3338cc]::run_test_in_process [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x5e3a7766602a - test[370c4ac83c3338cc]::run_test::{closure#0} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x5e3a776604c4 - test[370c4ac83c3338cc]::run_test::{closure#1} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x5e3a776604c4 - std[7ec1163218fd4288]::sys::backtrace::__rust_begin_short_backtrace:: [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/backtrace.rs:160:18 [INFO] [stdout] 35: 0x5e3a77668b22 - std[7ec1163218fd4288]::thread::lifecycle::spawn_unchecked::::{closure#1}::{closure#0} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/thread/lifecycle.rs:92:13 [INFO] [stdout] 36: 0x5e3a77668b22 - ::{closure#1}::{closure#0}> as core[784384805ecffc2c]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x5e3a77668b22 - std[7ec1163218fd4288]::panicking::catch_unwind::do_call::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:581:40 [INFO] [stdout] 38: 0x5e3a77668b22 - std[7ec1163218fd4288]::panicking::catch_unwind::<(), core[784384805ecffc2c]::panic::unwind_safe::AssertUnwindSafe::{closure#1}::{closure#0}>> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:544:19 [INFO] [stdout] 39: 0x5e3a77668b22 - std[7ec1163218fd4288]::panic::catch_unwind::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x5e3a77668b22 - std[7ec1163218fd4288]::thread::lifecycle::spawn_unchecked::::{closure#1} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/thread/lifecycle.rs:90:26 [INFO] [stdout] 41: 0x5e3a77668b22 - ::{closure#1} as core[784384805ecffc2c]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x5e3a778de72f - + core[784384805ecffc2c]::marker::Send> as core[784384805ecffc2c]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/alloc/src/boxed.rs:2206:9 [INFO] [stdout] 43: 0x5e3a778de72f - ::new::thread_start [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/thread/unix.rs:119:17 [INFO] [stdout] 44: 0x766eada09aa4 - [INFO] [stdout] 45: 0x766eada96a64 - 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:376:38: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: ExerciseOutput { stdout: "", stderr: "\u{1b}[1m\u{1b}[91merror\u{1b}[0m\u{1b}[1m: couldn't create a temp dir: Read-only file system (os error 30) at path \"/opt/rustwide/workdir/./rmetalNMRZW\"\u{1b}[0m\n\n\u{1b}[1m\u{1b}[91merror\u{1b}[0m\u{1b}[1m: aborting due to 1 previous error\u{1b}[0m\n\n" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5e3a778df012 - std[7ec1163218fd4288]::backtrace_rs::backtrace::libunwind::trace [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x5e3a778df012 - std[7ec1163218fd4288]::backtrace_rs::backtrace::trace_unsynchronized:: [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x5e3a778df012 - std[7ec1163218fd4288]::sys::backtrace::_print_fmt [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/backtrace.rs:68:9 [INFO] [stdout] 3: 0x5e3a778df012 - <::print::DisplayBacktrace as core[784384805ecffc2c]::fmt::Display>::fmt [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/backtrace.rs:38:26 [INFO] [stdout] 4: 0x5e3a778f4ce7 - ::fmt [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/fmt/rt.rs:152:76 [INFO] [stdout] 5: 0x5e3a778f4ce7 - core[784384805ecffc2c]::fmt::write [INFO] [stdout] 6: 0x5e3a778e3f26 - std[7ec1163218fd4288]::io::default_write_fmt::> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/io/mod.rs:614:11 [INFO] [stdout] 7: 0x5e3a778e3f26 - as std[7ec1163218fd4288]::io::Write>::write_fmt [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/io/mod.rs:1969:13 [INFO] [stdout] 8: 0x5e3a778bd44f - ::print [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/backtrace.rs:41:9 [INFO] [stdout] 9: 0x5e3a778bd44f - std[7ec1163218fd4288]::panicking::default_hook::{closure#0} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:292:27 [INFO] [stdout] 10: 0x5e3a778d7059 - std[7ec1163218fd4288]::panicking::default_hook [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:316:9 [INFO] [stdout] 11: 0x5e3a7766541e - core[784384805ecffc2c]::ops::function::Fn<(&'a std[7ec1163218fd4288]::panic::PanicHookInfo<'b>,), Output = ()> + core[784384805ecffc2c]::marker::Sync + core[784384805ecffc2c]::marker::Send> as core[784384805ecffc2c]::ops::function::Fn<(&std[7ec1163218fd4288]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 12: 0x5e3a7766541e - test[370c4ac83c3338cc]::test_main_with_exit_callback::::{closure#0} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x5e3a778d7212 - core[784384805ecffc2c]::ops::function::Fn<(&'a std[7ec1163218fd4288]::panic::PanicHookInfo<'b>,), Output = ()> + core[784384805ecffc2c]::marker::Sync + core[784384805ecffc2c]::marker::Send> as core[784384805ecffc2c]::ops::function::Fn<(&std[7ec1163218fd4288]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/alloc/src/boxed.rs:2220:9 [INFO] [stdout] 14: 0x5e3a778d7212 - std[7ec1163218fd4288]::panicking::panic_with_hook [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:833:13 [INFO] [stdout] 15: 0x5e3a778bd508 - std[7ec1163218fd4288]::panicking::panic_handler::{closure#0} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:698:13 [INFO] [stdout] 16: 0x5e3a778b2589 - std[7ec1163218fd4288]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/backtrace.rs:176:18 [INFO] [stdout] 17: 0x5e3a778be43d - __rustc[cbcfe5aadef28f7f]::rust_begin_unwind [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:689:5 [INFO] [stdout] 18: 0x5e3a778f542c - core[784384805ecffc2c]::panicking::panic_fmt [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/panicking.rs:80:14 [INFO] [stdout] 19: 0x5e3a778f51a2 - core[784384805ecffc2c]::result::unwrap_failed [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/result.rs:1867:5 [INFO] [stdout] 20: 0x5e3a7764d598 - >::unwrap [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/result.rs:1233:23 [INFO] [stdout] 21: 0x5e3a7764d598 - rustlings[af20ef9ed1b9efdf]::exercise::test::test_exercise_with_output [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:376:38 [INFO] [stdout] 22: 0x5e3a77649657 - rustlings[af20ef9ed1b9efdf]::exercise::test::test_exercise_with_output::{closure#0} [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:369:35 [INFO] [stdout] 23: 0x5e3a77652ae6 - >::call_once [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x5e3a7765974b - core[784384805ecffc2c]::result::Result<(), alloc[a1c94c07e218b93e]::string::String> as core[784384805ecffc2c]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x5e3a7765974b - test[370c4ac83c3338cc]::__rust_begin_short_backtrace::, fn() -> core[784384805ecffc2c]::result::Result<(), alloc[a1c94c07e218b93e]::string::String>> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x5e3a7766602a - test[370c4ac83c3338cc]::run_test_in_process::{closure#0} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x5e3a7766602a - as core[784384805ecffc2c]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 28: 0x5e3a7766602a - std[7ec1163218fd4288]::panicking::catch_unwind::do_call::, core[784384805ecffc2c]::result::Result<(), alloc[a1c94c07e218b93e]::string::String>> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:581:40 [INFO] [stdout] 29: 0x5e3a7766602a - std[7ec1163218fd4288]::panicking::catch_unwind::, core[784384805ecffc2c]::panic::unwind_safe::AssertUnwindSafe> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:544:19 [INFO] [stdout] 30: 0x5e3a7766602a - std[7ec1163218fd4288]::panic::catch_unwind::, core[784384805ecffc2c]::result::Result<(), alloc[a1c94c07e218b93e]::string::String>> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x5e3a7766602a - test[370c4ac83c3338cc]::run_test_in_process [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x5e3a7766602a - test[370c4ac83c3338cc]::run_test::{closure#0} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x5e3a776604c4 - test[370c4ac83c3338cc]::run_test::{closure#1} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x5e3a776604c4 - std[7ec1163218fd4288]::sys::backtrace::__rust_begin_short_backtrace:: [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/backtrace.rs:160:18 [INFO] [stdout] 35: 0x5e3a77668b22 - std[7ec1163218fd4288]::thread::lifecycle::spawn_unchecked::::{closure#1}::{closure#0} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/thread/lifecycle.rs:92:13 [INFO] [stdout] 36: 0x5e3a77668b22 - ::{closure#1}::{closure#0}> as core[784384805ecffc2c]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 37: 0x5e3a77668b22 - std[7ec1163218fd4288]::panicking::catch_unwind::do_call::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:581:40 [INFO] [stdout] 38: 0x5e3a77668b22 - std[7ec1163218fd4288]::panicking::catch_unwind::<(), core[784384805ecffc2c]::panic::unwind_safe::AssertUnwindSafe::{closure#1}::{closure#0}>> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panicking.rs:544:19 [INFO] [stdout] 39: 0x5e3a77668b22 - std[7ec1163218fd4288]::panic::catch_unwind::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x5e3a77668b22 - std[7ec1163218fd4288]::thread::lifecycle::spawn_unchecked::::{closure#1} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/thread/lifecycle.rs:90:26 [INFO] [stdout] 41: 0x5e3a77668b22 - ::{closure#1} as core[784384805ecffc2c]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x5e3a778de72f - + core[784384805ecffc2c]::marker::Send> as core[784384805ecffc2c]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/alloc/src/boxed.rs:2206:9 [INFO] [stdout] 43: 0x5e3a778de72f - ::new::thread_start [INFO] [stdout] at /rustc/311784882baa42a9638298cb325fa01a062c9d0f/library/std/src/sys/thread/unix.rs:119:17 [INFO] [stdout] 44: 0x766eada09aa4 - [INFO] [stdout] 45: 0x766eada96a64 - 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" "e1a216799e1edb4cef2fa129db5ba060ff92b6266b3084de3b2c2299f6ea5eba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e1a216799e1edb4cef2fa129db5ba060ff92b6266b3084de3b2c2299f6ea5eba", kill_on_drop: false }` [INFO] [stdout] e1a216799e1edb4cef2fa129db5ba060ff92b6266b3084de3b2c2299f6ea5eba