[INFO] cloning repository https://github.com/philipdongfei/fin_rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/philipdongfei/fin_rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilipdongfei%2Ffin_rustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilipdongfei%2Ffin_rustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d66a12bd47b2924ff69885fba7e460bf72327013 [INFO] testing philipdongfei/fin_rustlings against try#16fbf98f22730e073c09e7b03f0eafb87a295545 for pr-145628 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilipdongfei%2Ffin_rustlings" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/philipdongfei/fin_rustlings [INFO] finished tweaking git repo https://github.com/philipdongfei/fin_rustlings [INFO] tweaked toml for git repo https://github.com/philipdongfei/fin_rustlings written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/philipdongfei/fin_rustlings on toolchain 16fbf98f22730e073c09e7b03f0eafb87a295545 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/philipdongfei/fin_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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] testing philipdongfei/fin_rustlings against try#16fbf98f22730e073c09e7b03f0eafb87a295545 for pr-145628 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fphilipdongfei%2Ffin_rustlings" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/philipdongfei/fin_rustlings [INFO] finished tweaking git repo https://github.com/philipdongfei/fin_rustlings [INFO] tweaked toml for git repo https://github.com/philipdongfei/fin_rustlings written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/philipdongfei/fin_rustlings on toolchain 16fbf98f22730e073c09e7b03f0eafb87a295545 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/philipdongfei/fin_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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f999274ea5429fddd3f2d26a7dbb45bf3fcd34054e3943f5911dba56db21061c [INFO] running `Command { std: "docker" "start" "-a" "f999274ea5429fddd3f2d26a7dbb45bf3fcd34054e3943f5911dba56db21061c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f999274ea5429fddd3f2d26a7dbb45bf3fcd34054e3943f5911dba56db21061c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f999274ea5429fddd3f2d26a7dbb45bf3fcd34054e3943f5911dba56db21061c", kill_on_drop: false }` [INFO] [stdout] f999274ea5429fddd3f2d26a7dbb45bf3fcd34054e3943f5911dba56db21061c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 947ab4f80be4285ce3eb73f8cd0b59df6c4bf65c0dbb57b19242ef9c0763a96a [INFO] running `Command { std: "docker" "start" "-a" "947ab4f80be4285ce3eb73f8cd0b59df6c4bf65c0dbb57b19242ef9c0763a96a", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling memchr v2.4.1 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling slab v0.4.4 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling aho-corasick v0.7.18 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling console v0.15.0 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.5.9 [INFO] [stderr] Compiling rustlings v4.7.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:109:20 [INFO] [stdout] | [INFO] [stdout] 109 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 109 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.13s [INFO] running `Command { std: "docker" "inspect" "947ab4f80be4285ce3eb73f8cd0b59df6c4bf65c0dbb57b19242ef9c0763a96a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "947ab4f80be4285ce3eb73f8cd0b59df6c4bf65c0dbb57b19242ef9c0763a96a", kill_on_drop: false }` [INFO] [stdout] 947ab4f80be4285ce3eb73f8cd0b59df6c4bf65c0dbb57b19242ef9c0763a96a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c377767dd2d6dc94e24495425f8d028b1d4607459f7a7d4acc3f61dade719bf5 [INFO] running `Command { std: "docker" "start" "-a" "c377767dd2d6dc94e24495425f8d028b1d4607459f7a7d4acc3f61dade719bf5", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Compiling predicates-core v1.0.2 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:109:20 [INFO] [stdout] | [INFO] [stdout] 109 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 109 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling predicates-tree v1.0.3 [INFO] [stderr] Compiling num-traits v0.2.14 [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 v4.7.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/exercise.rs:109:20 [INFO] [stdout] | [INFO] [stdout] 109 | pub fn compile(&self) -> Result { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 109 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 6.04s [INFO] running `Command { std: "docker" "inspect" "c377767dd2d6dc94e24495425f8d028b1d4607459f7a7d4acc3f61dade719bf5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c377767dd2d6dc94e24495425f8d028b1d4607459f7a7d4acc3f61dade719bf5", kill_on_drop: false }` [INFO] [stdout] c377767dd2d6dc94e24495425f8d028b1d4607459f7a7d4acc3f61dade719bf5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 3d068222d7d62e53fc4fa454e0fdde83e8d099140e38f8249753588dd76c0209 [INFO] running `Command { std: "docker" "start" "-a" "3d068222d7d62e53fc4fa454e0fdde83e8d099140e38f8249753588dd76c0209", kill_on_drop: false }` [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [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] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/exercise.rs:109:20 [INFO] [stderr] | [INFO] [stderr] 109 | pub fn compile(&self) -> Result { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 109 | pub fn compile(&self) -> Result, ExerciseOutput> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `rustlings` (bin "rustlings") generated 1 warning (run `cargo fix --bin "rustlings"` to apply 1 suggestion) [INFO] [stderr] warning: `rustlings` (bin "rustlings" test) generated 1 warning (1 duplicate) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rustlings-64a753781f228025) [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-cb4381d5ea93dbb5) [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' (26) panicked at src/exercise.rs:269:36: [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: 0x570a23f25a82 - std::backtrace_rs::backtrace::libunwind::trace::h4b3f5960ed1c0917 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x570a23f25a82 - std::backtrace_rs::backtrace::trace_unsynchronized::h2f16383c47f8bd04 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x570a23f25a82 - std::sys::backtrace::_print_fmt::h698d661724c270ea [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x570a23f25a82 - ::fmt::h1c8375013274064c [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x570a23f3680f - core::fmt::rt::Argument::fmt::h9232377a772d3f8c [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x570a23f3680f - core::fmt::write::h6dc9e168423d9633 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x570a23ef3053 - std::io::default_write_fmt::hec53a38f10739f86 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x570a23ef3053 - std::io::Write::write_fmt::hf5089d8bbbe5aaa6 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x570a23eff052 - std::sys::backtrace::BacktraceLock::print::hf83c3d8cbd01f904 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x570a23f03aff - std::panicking::default_hook::{{closure}}::h3d4c49adc0898362 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x570a23f03991 - std::panicking::default_hook::hccea28f2487e7471 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x570a23d8b94e - as core::ops::function::Fn>::call::h06e1b96f84d5792f [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 12: 0x570a23d8b94e - test::test_main_with_exit_callback::{{closure}}::hf6db6d7b1242fcd4 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x570a23f0419e - as core::ops::function::Fn>::call::hfeb094aff1e6591e [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 14: 0x570a23f0419e - std::panicking::panic_with_hook::h694b8196629eb5e1 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x570a23f03f6a - std::panicking::panic_handler::{{closure}}::h0d99dd765f7e6554 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x570a23eff199 - std::sys::backtrace::__rust_end_short_backtrace::h8b43cbde72f7d592 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x570a23ee718d - __rustc[d1dec8fc82f9a585]::rust_begin_unwind [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x570a23f3ebc0 - core::panicking::panic_fmt::h315eeb0e4d90fcdc [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x570a23f3dff6 - core::result::unwrap_failed::h3188dfca3824df71 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/result.rs:1852:5 [INFO] [stdout] 20: 0x570a23d5f74c - core::result::Result::unwrap::hb0ebda68127c5b04 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/result.rs:1223:23 [INFO] [stdout] 21: 0x570a23d5f74c - rustlings::exercise::test::test_clean::hcfa6a2b3786e2a7d [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:36 [INFO] [stdout] 22: 0x570a23d5fb17 - rustlings::exercise::test::test_clean::{{closure}}::h5f01a686538a3086 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:268:20 [INFO] [stdout] 23: 0x570a23d5bc46 - core::ops::function::FnOnce::call_once::hb15148123fee1732 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 24: 0x570a23d8b7bb - core::ops::function::FnOnce::call_once::h5852f0076c8c0d8d [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 25: 0x570a23d8b7bb - test::__rust_begin_short_backtrace::hc8457233131a06d0 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x570a23da1215 - test::run_test_in_process::{{closure}}::ha3eda53784ae2639 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x570a23da1215 - as core::ops::function::FnOnce<()>>::call_once::hbd60f847cd185bc6 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x570a23da1215 - std::panicking::catch_unwind::do_call::h11c1623aed953668 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x570a23da1215 - std::panicking::catch_unwind::hf8551f73b52d8ed0 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x570a23da1215 - std::panic::catch_unwind::h66ff870d847fc7cf [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x570a23da1215 - test::run_test_in_process::h808a5fa5cb24efde [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x570a23da1215 - test::run_test::{{closure}}::hcf5782fef76f68bf [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x570a23d77be4 - test::run_test::{{closure}}::h59bb1f8f7167fee7 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x570a23d77be4 - std::sys::backtrace::__rust_begin_short_backtrace::h073f551083d60480 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x570a23d7b4ca - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9d6eff1e4da9d0f2 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x570a23d7b4ca - as core::ops::function::FnOnce<()>>::call_once::he37f75191b40d4b0 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x570a23d7b4ca - std::panicking::catch_unwind::do_call::h339b26991b458079 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x570a23d7b4ca - std::panicking::catch_unwind::h2e5906b8a84cca89 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x570a23d7b4ca - std::panic::catch_unwind::h3fea03a95c906d68 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x570a23d7b4ca - std::thread::Builder::spawn_unchecked_::{{closure}}::hab1ac593ae8241c8 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x570a23d7b4ca - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb46ae6da79faf2c5 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 42: 0x570a23ef927f - as core::ops::function::FnOnce>::call_once::h317217a5c86437d1 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 43: 0x570a23ef927f - std::sys::pal::unix::thread::Thread::new::thread_start::h9b0e1220f8cf5182 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/sys/pal/unix/thread.rs:118:17 [INFO] [stdout] 44: 0x71a51d97daa4 - [INFO] [stdout] 45: 0x71a51da0aa34 - 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' (27) panicked at src/exercise.rs:342:38: [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/./rmetavvVUvr\"\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: 0x570a23f25a82 - std::backtrace_rs::backtrace::libunwind::trace::h4b3f5960ed1c0917 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x570a23f25a82 - std::backtrace_rs::backtrace::trace_unsynchronized::h2f16383c47f8bd04 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x570a23f25a82 - std::sys::backtrace::_print_fmt::h698d661724c270ea [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x570a23f25a82 - ::fmt::h1c8375013274064c [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x570a23f3680f - core::fmt::rt::Argument::fmt::h9232377a772d3f8c [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x570a23f3680f - core::fmt::write::h6dc9e168423d9633 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x570a23ef3053 - std::io::default_write_fmt::hec53a38f10739f86 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x570a23ef3053 - std::io::Write::write_fmt::hf5089d8bbbe5aaa6 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x570a23eff052 - std::sys::backtrace::BacktraceLock::print::hf83c3d8cbd01f904 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x570a23f03aff - std::panicking::default_hook::{{closure}}::h3d4c49adc0898362 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x570a23f03991 - std::panicking::default_hook::hccea28f2487e7471 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x570a23d8b94e - as core::ops::function::Fn>::call::h06e1b96f84d5792f [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 12: 0x570a23d8b94e - test::test_main_with_exit_callback::{{closure}}::hf6db6d7b1242fcd4 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x570a23f0419e - as core::ops::function::Fn>::call::hfeb094aff1e6591e [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 14: 0x570a23f0419e - std::panicking::panic_with_hook::h694b8196629eb5e1 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x570a23f03f6a - std::panicking::panic_handler::{{closure}}::h0d99dd765f7e6554 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x570a23eff199 - std::sys::backtrace::__rust_end_short_backtrace::h8b43cbde72f7d592 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x570a23ee718d - __rustc[d1dec8fc82f9a585]::rust_begin_unwind [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x570a23f3ebc0 - core::panicking::panic_fmt::h315eeb0e4d90fcdc [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x570a23f3dff6 - core::result::unwrap_failed::h3188dfca3824df71 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/result.rs:1852:5 [INFO] [stdout] 20: 0x570a23d60574 - core::result::Result::unwrap::ha6712a0d2c25b7b3 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/result.rs:1223:23 [INFO] [stdout] 21: 0x570a23d60574 - rustlings::exercise::test::test_exercise_with_output::h4bad5f7e47540522 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:342:38 [INFO] [stdout] 22: 0x570a23d607f7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h94e9d96111f08b6b [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:335:35 [INFO] [stdout] 23: 0x570a23d5bcc6 - core::ops::function::FnOnce::call_once::heb14765a5822a78e [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 24: 0x570a23d8b7bb - core::ops::function::FnOnce::call_once::h5852f0076c8c0d8d [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 25: 0x570a23d8b7bb - test::__rust_begin_short_backtrace::hc8457233131a06d0 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x570a23da1215 - test::run_test_in_process::{{closure}}::ha3eda53784ae2639 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x570a23da1215 - as core::ops::function::FnOnce<()>>::call_once::hbd60f847cd185bc6 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 28: 0x570a23da1215 - std::panicking::catch_unwind::do_call::h11c1623aed953668 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:590:40 [INFO] [stdout] 29: 0x570a23da1215 - std::panicking::catch_unwind::hf8551f73b52d8ed0 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:553:19 [INFO] [stdout] 30: 0x570a23da1215 - std::panic::catch_unwind::h66ff870d847fc7cf [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x570a23da1215 - test::run_test_in_process::h808a5fa5cb24efde [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x570a23da1215 - test::run_test::{{closure}}::hcf5782fef76f68bf [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x570a23d77be4 - test::run_test::{{closure}}::h59bb1f8f7167fee7 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x570a23d77be4 - std::sys::backtrace::__rust_begin_short_backtrace::h073f551083d60480 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 35: 0x570a23d7b4ca - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h9d6eff1e4da9d0f2 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 36: 0x570a23d7b4ca - as core::ops::function::FnOnce<()>>::call_once::he37f75191b40d4b0 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/panic/unwind_safe.rs:272:9 [INFO] [stdout] 37: 0x570a23d7b4ca - std::panicking::catch_unwind::do_call::h339b26991b458079 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:590:40 [INFO] [stdout] 38: 0x570a23d7b4ca - std::panicking::catch_unwind::h2e5906b8a84cca89 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panicking.rs:553:19 [INFO] [stdout] 39: 0x570a23d7b4ca - std::panic::catch_unwind::h3fea03a95c906d68 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x570a23d7b4ca - std::thread::Builder::spawn_unchecked_::{{closure}}::hab1ac593ae8241c8 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 41: 0x570a23d7b4ca - core::ops::function::FnOnce::call_once{{vtable.shim}}::hb46ae6da79faf2c5 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/core/src/ops/function.rs:253:5 [INFO] [stdout] 42: 0x570a23ef927f - as core::ops::function::FnOnce>::call_once::h317217a5c86437d1 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 43: 0x570a23ef927f - std::sys::pal::unix::thread::Thread::new::thread_start::h9b0e1220f8cf5182 [INFO] [stdout] at /rustc/16fbf98f22730e073c09e7b03f0eafb87a295545/library/std/src/sys/pal/unix/thread.rs:118:17 [INFO] [stdout] 44: 0x71a51d97daa4 - [INFO] [stdout] 45: 0x71a51da0aa34 - 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 0.12s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--bin rustlings` [INFO] running `Command { std: "docker" "inspect" "3d068222d7d62e53fc4fa454e0fdde83e8d099140e38f8249753588dd76c0209", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3d068222d7d62e53fc4fa454e0fdde83e8d099140e38f8249753588dd76c0209", kill_on_drop: false }` [INFO] [stdout] 3d068222d7d62e53fc4fa454e0fdde83e8d099140e38f8249753588dd76c0209