[INFO] cloning repository https://github.com/ignaciomosca/rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ignaciomosca/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fignaciomosca%2Frustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fignaciomosca%2Frustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 93bc11e4c00a95c14122877343abd4ebebad17d2
[INFO] testing ignaciomosca/rustlings against try#ed7f3d77595b4831fdf085f2529aa13b5b51ff7d for pr-134530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fignaciomosca%2Frustlings" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ignaciomosca/rustlings on toolchain ed7f3d77595b4831fdf085f2529aa13b5b51ff7d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ignaciomosca/rustlings
[INFO] finished tweaking git repo https://github.com/ignaciomosca/rustlings
[INFO] tweaked toml for git repo https://github.com/ignaciomosca/rustlings written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ignaciomosca/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" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] [stderr]   Downloaded parking_lot_core v0.8.3
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[INFO] [stderr]   Downloaded serde_derive v1.0.125
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[INFO] [stderr]   Downloaded predicates v1.0.7
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[INFO] [stderr]   Downloaded libc v0.2.93
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68e580d3b0d295700a5f676b77313527065f63bac91b5588d036e8ba63bc3420
[INFO] running `Command { std: "docker" "start" "-a" "68e580d3b0d295700a5f676b77313527065f63bac91b5588d036e8ba63bc3420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68e580d3b0d295700a5f676b77313527065f63bac91b5588d036e8ba63bc3420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68e580d3b0d295700a5f676b77313527065f63bac91b5588d036e8ba63bc3420", kill_on_drop: false }`
[INFO] [stdout] 68e580d3b0d295700a5f676b77313527065f63bac91b5588d036e8ba63bc3420
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d976be454f4d09ef5dee8bd80e821927f935049475ecaa9280aab23c65335a75
[INFO] running `Command { std: "docker" "start" "-a" "d976be454f4d09ef5dee8bd80e821927f935049475ecaa9280aab23c65335a75", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
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[INFO] [stderr]    Compiling rustlings v4.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.43s
[INFO] running `Command { std: "docker" "inspect" "d976be454f4d09ef5dee8bd80e821927f935049475ecaa9280aab23c65335a75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d976be454f4d09ef5dee8bd80e821927f935049475ecaa9280aab23c65335a75", kill_on_drop: false }`
[INFO] [stdout] d976be454f4d09ef5dee8bd80e821927f935049475ecaa9280aab23c65335a75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99dc2b8a935f5e6e1e821087a3c2fd167d0cb310e0354b8584f4620c30eb263a
[INFO] running `Command { std: "docker" "start" "-a" "99dc2b8a935f5e6e1e821087a3c2fd167d0cb310e0354b8584f4620c30eb263a", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling predicates-core v1.0.2
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling escargot v0.4.0
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[INFO] [stderr]    Compiling predicates-tree v1.0.2
[INFO] [stderr]    Compiling predicates v1.0.7
[INFO] [stderr]    Compiling assert_cmd v0.11.1
[INFO] [stderr]    Compiling rustlings v4.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.07s
[INFO] running `Command { std: "docker" "inspect" "99dc2b8a935f5e6e1e821087a3c2fd167d0cb310e0354b8584f4620c30eb263a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99dc2b8a935f5e6e1e821087a3c2fd167d0cb310e0354b8584f4620c30eb263a", kill_on_drop: false }`
[INFO] [stdout] 99dc2b8a935f5e6e1e821087a3c2fd167d0cb310e0354b8584f4620c30eb263a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+ed7f3d77595b4831fdf085f2529aa13b5b51ff7d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 408d71cde791fed05db54ee0955ad1b3c6fd7ab9a1c099e5aa7f9299edaa1d07
[INFO] running `Command { std: "docker" "start" "-a" "408d71cde791fed05db54ee0955ad1b3c6fd7ab9a1c099e5aa7f9299edaa1d07", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-4a7b5859642110fb)
[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] thread 'exercise::test::test_clean' panicked at src/exercise.rs:270:36:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5c322872f80a - std::backtrace_rs::backtrace::libunwind::trace::h3dab7ffe210583a3
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x5c322872f80a - std::backtrace_rs::backtrace::trace_unsynchronized::h85ec3139dd4f9047
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5c322872f80a - std::sys::backtrace::_print_fmt::h3447259688950eab
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5c322872f80a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha8d24a0f27cc401d
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5c3228756ad3 - core::fmt::rt::Argument::fmt::h650b92642f481125
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x5c3228756ad3 - core::fmt::write::h5becf96591c394eb
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/fmt/mod.rs:1437:21
[INFO] [stdout]    6:     0x5c322872c443 - std::io::Write::write_fmt::h61fb565ee25d88c6
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/io/mod.rs:1887:15
[INFO] [stdout]    7:     0x5c322872f652 - std::sys::backtrace::BacktraceLock::print::hae1dc20f39b0ae80
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x5c3228730c8e - std::panicking::default_hook::{{closure}}::hb3023fc9edf847a9
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:284:22
[INFO] [stdout]    9:     0x5c3228730a97 - std::panicking::default_hook::h271aee2d85880663
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:308:9
[INFO] [stdout]   10:     0x5c32285d0cd8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hbfe4f2a7834d388d
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1984:9
[INFO] [stdout]   11:     0x5c32285d0cd8 - test::test_main::{{closure}}::hbb7d4fde4185abc5
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x5c32287314a8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd4cbe0a9e8955cde
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1984:9
[INFO] [stdout]   13:     0x5c32287314a8 - std::panicking::rust_panic_with_hook::he05f4a167c1908ac
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:825:13
[INFO] [stdout]   14:     0x5c322873115a - std::panicking::begin_panic_handler::{{closure}}::h79780775730ab9df
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:690:13
[INFO] [stdout]   15:     0x5c322872fcd9 - std::sys::backtrace::__rust_end_short_backtrace::h753217146a30d8a2
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   16:     0x5c3228730ded - rust_begin_unwind
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:681:5
[INFO] [stdout]   17:     0x5c32287554b0 - core::panicking::panic_fmt::h9ad4c3d87a3eb4ad
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/panicking.rs:75:14
[INFO] [stdout]   18:     0x5c3228755926 - core::result::unwrap_failed::h865c91c1a27f7a85
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/result.rs:1699:5
[INFO] [stdout]   19:     0x5c322859115a - core::result::Result<T,E>::unwrap::hbaf2c01698609036
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/result.rs:1104:23
[INFO] [stdout]   20:     0x5c322859115a - rustlings::exercise::test::test_clean::h7efa4d7433b0f952
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:270:9
[INFO] [stdout]   21:     0x5c3228591097 - rustlings::exercise::test::test_clean::{{closure}}::h2a9ef962e5c245eb
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:269:20
[INFO] [stdout]   22:     0x5c322858e246 - core::ops::function::FnOnce::call_once::h106d7af1fba96e83
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5c32285d591b - core::ops::function::FnOnce::call_once::h651e3187cb632f8b
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5c32285d591b - test::__rust_begin_short_backtrace::hf087c08482082584
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:632:18
[INFO] [stdout]   25:     0x5c32285d5229 - test::run_test_in_process::{{closure}}::h028b11125eb38b18
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:655:60
[INFO] [stdout]   26:     0x5c32285d5229 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8a69fc59e5c0ffcd
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x5c32285d5229 - std::panicking::try::do_call::h53d2549af1773521
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:573:40
[INFO] [stdout]   28:     0x5c32285d5229 - std::panicking::try::h327579c208c8ae37
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:536:19
[INFO] [stdout]   29:     0x5c32285d5229 - std::panic::catch_unwind::hae7e4a4da155a27e
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panic.rs:358:14
[INFO] [stdout]   30:     0x5c32285d5229 - test::run_test_in_process::hef0a7b0ac1ee3437
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:655:27
[INFO] [stdout]   31:     0x5c32285d5229 - test::run_test::{{closure}}::h007633ec4ae045b1
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:576:43
[INFO] [stdout]   32:     0x5c3228597f9a - test::run_test::{{closure}}::hf3a8c9852b545b46
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:606:41
[INFO] [stdout]   33:     0x5c3228597f9a - std::sys::backtrace::__rust_begin_short_backtrace::ha442d5d7942f6ee9
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   34:     0x5c322859ba06 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc8fd461cdc84b676
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/thread/mod.rs:561:17
[INFO] [stdout]   35:     0x5c322859ba06 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h5a459cc955f063ed
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x5c322859ba06 - std::panicking::try::do_call::hc249aed3a6c9c972
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:573:40
[INFO] [stdout]   37:     0x5c322859ba06 - std::panicking::try::h649add41232b7ab3
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:536:19
[INFO] [stdout]   38:     0x5c322859ba06 - std::panic::catch_unwind::h2fd522623ccd57b0
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panic.rs:358:14
[INFO] [stdout]   39:     0x5c322859ba06 - std::thread::Builder::spawn_unchecked_::{{closure}}::h685de412d0d20b6b
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/thread/mod.rs:559:30
[INFO] [stdout]   40:     0x5c322859ba06 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hf3391e711cf5434d
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5c32287355ab - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc98bb0f9729b604d
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1970:9
[INFO] [stdout]   42:     0x5c32287355ab - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h3b479d8e9f1fef9f
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1970:9
[INFO] [stdout]   43:     0x5c32287355ab - std::sys::pal::unix::thread::Thread::new::thread_start::he3d5da9652362070
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   44:     0x70c126aaaac3 - <unknown>
[INFO] [stdout]   45:     0x70c126b3ba04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ----
[INFO] [stdout] thread 'exercise::test::test_exercise_with_output' panicked at src/exercise.rs:343:38:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: ExerciseOutput { stdout: "", stderr: "\u{1b}[0m\u{1b}[1m\u{1b}[38;5;9merror\u{1b}[0m\u{1b}[0m\u{1b}[1m: couldn't create a temp dir: Read-only file system (os error 30) at path \"/opt/rustwide/workdir/./rmetaMeFowU\"\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:     0x5c322872f80a - std::backtrace_rs::backtrace::libunwind::trace::h3dab7ffe210583a3
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x5c322872f80a - std::backtrace_rs::backtrace::trace_unsynchronized::h85ec3139dd4f9047
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5c322872f80a - std::sys::backtrace::_print_fmt::h3447259688950eab
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5c322872f80a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha8d24a0f27cc401d
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5c3228756ad3 - core::fmt::rt::Argument::fmt::h650b92642f481125
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x5c3228756ad3 - core::fmt::write::h5becf96591c394eb
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/fmt/mod.rs:1437:21
[INFO] [stdout]    6:     0x5c322872c443 - std::io::Write::write_fmt::h61fb565ee25d88c6
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/io/mod.rs:1887:15
[INFO] [stdout]    7:     0x5c322872f652 - std::sys::backtrace::BacktraceLock::print::hae1dc20f39b0ae80
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x5c3228730c8e - std::panicking::default_hook::{{closure}}::hb3023fc9edf847a9
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:284:22
[INFO] [stdout]    9:     0x5c3228730a97 - std::panicking::default_hook::h271aee2d85880663
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:308:9
[INFO] [stdout]   10:     0x5c32285d0cd8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hbfe4f2a7834d388d
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1984:9
[INFO] [stdout]   11:     0x5c32285d0cd8 - test::test_main::{{closure}}::hbb7d4fde4185abc5
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:134:21
[INFO] [stdout]   12:     0x5c32287314a8 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd4cbe0a9e8955cde
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1984:9
[INFO] [stdout]   13:     0x5c32287314a8 - std::panicking::rust_panic_with_hook::he05f4a167c1908ac
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:825:13
[INFO] [stdout]   14:     0x5c322873115a - std::panicking::begin_panic_handler::{{closure}}::h79780775730ab9df
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:690:13
[INFO] [stdout]   15:     0x5c322872fcd9 - std::sys::backtrace::__rust_end_short_backtrace::h753217146a30d8a2
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   16:     0x5c3228730ded - rust_begin_unwind
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:681:5
[INFO] [stdout]   17:     0x5c32287554b0 - core::panicking::panic_fmt::h9ad4c3d87a3eb4ad
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/panicking.rs:75:14
[INFO] [stdout]   18:     0x5c3228755926 - core::result::unwrap_failed::h865c91c1a27f7a85
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/result.rs:1699:5
[INFO] [stdout]   19:     0x5c3228591fb6 - core::result::Result<T,E>::unwrap::h1cf454cee8bd7318
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/result.rs:1104:23
[INFO] [stdout]   20:     0x5c3228591fb6 - rustlings::exercise::test::test_exercise_with_output::hd84a48c25b07ff24
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:343:19
[INFO] [stdout]   21:     0x5c3228591dc7 - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hb12c024f4b27829f
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:336:35
[INFO] [stdout]   22:     0x5c322858e286 - core::ops::function::FnOnce::call_once::h39aa1f313000ae91
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   23:     0x5c32285d591b - core::ops::function::FnOnce::call_once::h651e3187cb632f8b
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5c32285d591b - test::__rust_begin_short_backtrace::hf087c08482082584
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:632:18
[INFO] [stdout]   25:     0x5c32285d5229 - test::run_test_in_process::{{closure}}::h028b11125eb38b18
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:655:60
[INFO] [stdout]   26:     0x5c32285d5229 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8a69fc59e5c0ffcd
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   27:     0x5c32285d5229 - std::panicking::try::do_call::h53d2549af1773521
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:573:40
[INFO] [stdout]   28:     0x5c32285d5229 - std::panicking::try::h327579c208c8ae37
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:536:19
[INFO] [stdout]   29:     0x5c32285d5229 - std::panic::catch_unwind::hae7e4a4da155a27e
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panic.rs:358:14
[INFO] [stdout]   30:     0x5c32285d5229 - test::run_test_in_process::hef0a7b0ac1ee3437
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:655:27
[INFO] [stdout]   31:     0x5c32285d5229 - test::run_test::{{closure}}::h007633ec4ae045b1
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:576:43
[INFO] [stdout]   32:     0x5c3228597f9a - test::run_test::{{closure}}::hf3a8c9852b545b46
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/test/src/lib.rs:606:41
[INFO] [stdout]   33:     0x5c3228597f9a - std::sys::backtrace::__rust_begin_short_backtrace::ha442d5d7942f6ee9
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   34:     0x5c322859ba06 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc8fd461cdc84b676
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/thread/mod.rs:561:17
[INFO] [stdout]   35:     0x5c322859ba06 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h5a459cc955f063ed
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   36:     0x5c322859ba06 - std::panicking::try::do_call::hc249aed3a6c9c972
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:573:40
[INFO] [stdout]   37:     0x5c322859ba06 - std::panicking::try::h649add41232b7ab3
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panicking.rs:536:19
[INFO] [stdout]   38:     0x5c322859ba06 - std::panic::catch_unwind::h2fd522623ccd57b0
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/panic.rs:358:14
[INFO] [stdout]   39:     0x5c322859ba06 - std::thread::Builder::spawn_unchecked_::{{closure}}::h685de412d0d20b6b
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/thread/mod.rs:559:30
[INFO] [stdout]   40:     0x5c322859ba06 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hf3391e711cf5434d
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   41:     0x5c32287355ab - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc98bb0f9729b604d
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1970:9
[INFO] [stdout]   42:     0x5c32287355ab - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h3b479d8e9f1fef9f
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/alloc/src/boxed.rs:1970:9
[INFO] [stdout]   43:     0x5c32287355ab - std::sys::pal::unix::thread::Thread::new::thread_start::he3d5da9652362070
[INFO] [stdout]                                at /rustc/ed7f3d77595b4831fdf085f2529aa13b5b51ff7d/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stdout]   44:     0x70c126aaaac3 - <unknown>
[INFO] [stdout]   45:     0x70c126b3ba04 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[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" "408d71cde791fed05db54ee0955ad1b3c6fd7ab9a1c099e5aa7f9299edaa1d07", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "408d71cde791fed05db54ee0955ad1b3c6fd7ab9a1c099e5aa7f9299edaa1d07", kill_on_drop: false }`
[INFO] [stdout] 408d71cde791fed05db54ee0955ad1b3c6fd7ab9a1c099e5aa7f9299edaa1d07