[INFO] cloning repository https://github.com/shippomx/rustlings
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shippomx/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshippomx%2Frustlings", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshippomx%2Frustlings'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e6bde22f9c65e1da07602021d759ab702f7317d4
[INFO] testing shippomx/rustlings against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshippomx%2Frustlings" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shippomx/rustlings on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shippomx/rustlings
[INFO] finished tweaking git repo https://github.com/shippomx/rustlings
[INFO] tweaked toml for git repo https://github.com/shippomx/rustlings written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/shippomx/rustlings already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e26776212cce8cb58382362dfb676a658dab887188f7008dbb49b5a0475df29f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e26776212cce8cb58382362dfb676a658dab887188f7008dbb49b5a0475df29f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e26776212cce8cb58382362dfb676a658dab887188f7008dbb49b5a0475df29f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e26776212cce8cb58382362dfb676a658dab887188f7008dbb49b5a0475df29f", kill_on_drop: false }`
[INFO] [stdout] e26776212cce8cb58382362dfb676a658dab887188f7008dbb49b5a0475df29f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea8f2a285d1dc30d2fc646d603f679fa107a472289e25fe986e5a2c81d77a10a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ea8f2a285d1dc30d2fc646d603f679fa107a472289e25fe986e5a2c81d77a10a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.58
[INFO] [stderr]    Compiling autocfg v0.1.4
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.92
[INFO] [stderr]    Compiling same-file v1.0.4
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling walkdir v2.2.7
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling clicolors-control v1.0.0
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling termios v0.3.1
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling inotify-sys v0.1.3
[INFO] [stderr]    Compiling filetime v0.2.5
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling inotify v0.7.0
[INFO] [stderr]    Compiling console v0.8.0
[INFO] [stderr]    Compiling mio v0.6.19
[INFO] [stderr]    Compiling number_prefix v0.2.8
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]    Compiling notify v4.0.15
[INFO] [stderr]    Compiling indicatif v0.10.3
[INFO] [stderr]    Compiling console v0.7.7
[INFO] [stderr]    Compiling serde_derive v1.0.92
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling rustlings v4.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 09s
[INFO] running `Command { std: "docker" "inspect" "ea8f2a285d1dc30d2fc646d603f679fa107a472289e25fe986e5a2c81d77a10a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea8f2a285d1dc30d2fc646d603f679fa107a472289e25fe986e5a2c81d77a10a", kill_on_drop: false }`
[INFO] [stdout] ea8f2a285d1dc30d2fc646d603f679fa107a472289e25fe986e5a2c81d77a10a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9be5bc770b631e6957e2b198a9b07ed1956c7184c352609561665c8590bfe9f6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "9be5bc770b631e6957e2b198a9b07ed1956c7184c352609561665c8590bfe9f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling escargot v0.4.0
[INFO] [stderr]    Compiling predicates-core v1.0.0
[INFO] [stderr]    Compiling normalize-line-endings v0.2.2
[INFO] [stderr]    Compiling treeline v0.1.0
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling float-cmp v0.4.0
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling predicates-tree v1.0.0
[INFO] [stderr]    Compiling predicates v1.0.1
[INFO] [stderr]    Compiling assert_cmd v0.11.1
[INFO] [stderr]    Compiling rustlings v4.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 18.06s
[INFO] running `Command { std: "docker" "inspect" "9be5bc770b631e6957e2b198a9b07ed1956c7184c352609561665c8590bfe9f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9be5bc770b631e6957e2b198a9b07ed1956c7184c352609561665c8590bfe9f6", kill_on_drop: false }`
[INFO] [stdout] 9be5bc770b631e6957e2b198a9b07ed1956c7184c352609561665c8590bfe9f6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 16e7299037531b030512b6ff360eaa831801d74d0306634c568ddc0cd0c0da9f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "16e7299037531b030512b6ff360eaa831801d74d0306634c568ddc0cd0c0da9f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rustlings-6d8a01076fe448eb
[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 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/exercise.rs:250:36
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55e8a44c1790 - std::backtrace_rs::backtrace::libunwind::trace::h95fc93571932622e
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x55e8a44c1790 - std::backtrace_rs::backtrace::trace_unsynchronized::h4d0b90afc33151fd
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55e8a44c1790 - std::sys_common::backtrace::_print_fmt::h93d302d001a3bf01
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x55e8a44c1790 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h7881e3a580134f9a
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x55e8a44e593c - core::fmt::write::h1857a60b204f1b6a
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/fmt/mod.rs:1078:17
[INFO] [stdout]    5:     0x55e8a44bdb72 - std::io::Write::write_fmt::hd17811b9a5dec54b
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/io/mod.rs:1519:15
[INFO] [stdout]    6:     0x55e8a44c3fc5 - std::sys_common::backtrace::_print::h3e3f9fed81bc11e9
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x55e8a44c3fc5 - std::sys_common::backtrace::print::hd22ac23fed5071c8
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x55e8a44c3fc5 - std::panicking::default_hook::{{closure}}::h1647bdcf68060e17
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x55e8a44c3b52 - std::panicking::default_hook::hb08853b392b9404b
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x55e8a44c4761 - std::panicking::rust_panic_with_hook::h3624ee29da369ede
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:591:17
[INFO] [stdout]   11:     0x55e8a44c42a7 - std::panicking::begin_panic_handler::{{closure}}::hefcfcedcde6bb6d9
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:497:13
[INFO] [stdout]   12:     0x55e8a44c1c4c - std::sys_common::backtrace::__rust_end_short_backtrace::heb130cec93caa706
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x55e8a44c4209 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:493:5
[INFO] [stdout]   14:     0x55e8a44e42c1 - core::panicking::panic_fmt::hb15d6f55e8472f62
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x55e8a44e40e3 - core::option::expect_none_failed::he492a18657d97593
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/option.rs:1268:5
[INFO] [stdout]   16:     0x55e8a42d4c8b - core::result::Result<T,E>::unwrap::hbe06712d964ce321
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/result.rs:973:23
[INFO] [stdout]   17:     0x55e8a42dcdb3 - rustlings::exercise::test::test_clean::hab0c728c2bc78bf9
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:250:9
[INFO] [stdout]   18:     0x55e8a42dcd6a - rustlings::exercise::test::test_clean::{{closure}}::h4683c75bf7a76aa1
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:249:5
[INFO] [stdout]   19:     0x55e8a42d675e - core::ops::function::FnOnce::call_once::h0cba48a83c36de93
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x55e8a430a8b3 - core::ops::function::FnOnce::call_once::h72b3efc134abec04
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x55e8a430a8b3 - test::__rust_begin_short_backtrace::hf76173a3f44f554b
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/test/src/lib.rs:516:5
[INFO] [stdout]   22:     0x55e8a4308fa8 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h49f5b686efed1e06
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/alloc/src/boxed.rs:1318:9
[INFO] [stdout]   23:     0x55e8a4308fa8 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4879f836ca9aaead
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panic.rs:322:9
[INFO] [stdout]   24:     0x55e8a4308fa8 - std::panicking::try::do_call::h9655796ce3021b6c
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:379:40
[INFO] [stdout]   25:     0x55e8a4308fa8 - std::panicking::try::h346508ed448399f4
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:343:19
[INFO] [stdout]   26:     0x55e8a4308fa8 - std::panic::catch_unwind::h00e84f4e9c3caaa0
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panic.rs:396:14
[INFO] [stdout]   27:     0x55e8a4308fa8 - test::run_test_in_process::hc80321f825c30106
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/test/src/lib.rs:538:18
[INFO] [stdout]   28:     0x55e8a4308fa8 - test::run_test::run_test_inner::{{closure}}::h89c217441620999f
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/test/src/lib.rs:449:39
[INFO] [stdout]   29:     0x55e8a42e3596 - std::sys_common::backtrace::__rust_begin_short_backtrace::h3852ec0877008db6
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   30:     0x55e8a42e7d5d - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h7c7dfff4b938ae67
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/thread/mod.rs:474:17
[INFO] [stdout]   31:     0x55e8a42e7d5d - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8db0dd15c072a403
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panic.rs:322:9
[INFO] [stdout]   32:     0x55e8a42e7d5d - std::panicking::try::do_call::haad8639857ae1187
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:379:40
[INFO] [stdout]   33:     0x55e8a42e7d5d - std::panicking::try::h61de115e9dce60f6
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:343:19
[INFO] [stdout]   34:     0x55e8a42e7d5d - std::panic::catch_unwind::h50601fd82666a838
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panic.rs:396:14
[INFO] [stdout]   35:     0x55e8a42e7d5d - std::thread::Builder::spawn_unchecked::{{closure}}::hac267391ef9d21bd
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/thread/mod.rs:473:30
[INFO] [stdout]   36:     0x55e8a42e7d5d - core::ops::function::FnOnce::call_once{{vtable.shim}}::heb15d2d9c42706b7
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   37:     0x55e8a44ca33a - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5446ed3fdb82006e
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/alloc/src/boxed.rs:1318:9
[INFO] [stdout]   38:     0x55e8a44ca33a - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h62a21a889329a3f2
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/alloc/src/boxed.rs:1318:9
[INFO] [stdout]   39:     0x55e8a44ca33a - std::sys::unix::thread::Thread::new::thread_start::h62402416daf174b6
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   40:     0x7f98d2bfa609 - start_thread
[INFO] [stdout]   41:     0x7f98d2d51293 - clone
[INFO] [stdout]   42:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- exercise::test::test_exercise_with_output stdout ----
[INFO] [stdout] thread 'exercise::test::test_exercise_with_output' panicked at '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: could not write output to ./temp_10.testSuccess.7rcbfp3g-cgu.9.rcgu.o: Read-only file system\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 previous error\u{1b}[0m\n\n" }', src/exercise.rs:323:38
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55e8a44c1790 - std::backtrace_rs::backtrace::libunwind::trace::h95fc93571932622e
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x55e8a44c1790 - std::backtrace_rs::backtrace::trace_unsynchronized::h4d0b90afc33151fd
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x55e8a44c1790 - std::sys_common::backtrace::_print_fmt::h93d302d001a3bf01
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x55e8a44c1790 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h7881e3a580134f9a
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x55e8a44e593c - core::fmt::write::h1857a60b204f1b6a
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/fmt/mod.rs:1078:17
[INFO] [stdout]    5:     0x55e8a44bdb72 - std::io::Write::write_fmt::hd17811b9a5dec54b
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/io/mod.rs:1519:15
[INFO] [stdout]    6:     0x55e8a44c3fc5 - std::sys_common::backtrace::_print::h3e3f9fed81bc11e9
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x55e8a44c3fc5 - std::sys_common::backtrace::print::hd22ac23fed5071c8
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x55e8a44c3fc5 - std::panicking::default_hook::{{closure}}::h1647bdcf68060e17
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x55e8a44c3b52 - std::panicking::default_hook::hb08853b392b9404b
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x55e8a44c4761 - std::panicking::rust_panic_with_hook::h3624ee29da369ede
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:591:17
[INFO] [stdout]   11:     0x55e8a44c42a7 - std::panicking::begin_panic_handler::{{closure}}::hefcfcedcde6bb6d9
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:497:13
[INFO] [stdout]   12:     0x55e8a44c1c4c - std::sys_common::backtrace::__rust_end_short_backtrace::heb130cec93caa706
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x55e8a44c4209 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:493:5
[INFO] [stdout]   14:     0x55e8a44e42c1 - core::panicking::panic_fmt::hb15d6f55e8472f62
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x55e8a44e40e3 - core::option::expect_none_failed::he492a18657d97593
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/option.rs:1268:5
[INFO] [stdout]   16:     0x55e8a42d4b1c - core::result::Result<T,E>::unwrap::h366d8f5fe44f2aca
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/result.rs:973:23
[INFO] [stdout]   17:     0x55e8a42ddb41 - rustlings::exercise::test::test_exercise_with_output::h60671000e18d2631
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:323:19
[INFO] [stdout]   18:     0x55e8a42dda5a - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h7c1c1cb12c38c184
[INFO] [stdout]                                at /opt/rustwide/workdir/src/exercise.rs:316:5
[INFO] [stdout]   19:     0x55e8a42d67fe - core::ops::function::FnOnce::call_once::h5db40bb74ed4e299
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x55e8a430a8b3 - core::ops::function::FnOnce::call_once::h72b3efc134abec04
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x55e8a430a8b3 - test::__rust_begin_short_backtrace::hf76173a3f44f554b
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/test/src/lib.rs:516:5
[INFO] [stdout]   22:     0x55e8a4308fa8 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h49f5b686efed1e06
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/alloc/src/boxed.rs:1318:9
[INFO] [stdout]   23:     0x55e8a4308fa8 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4879f836ca9aaead
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panic.rs:322:9
[INFO] [stdout]   24:     0x55e8a4308fa8 - std::panicking::try::do_call::h9655796ce3021b6c
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:379:40
[INFO] [stdout]   25:     0x55e8a4308fa8 - std::panicking::try::h346508ed448399f4
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:343:19
[INFO] [stdout]   26:     0x55e8a4308fa8 - std::panic::catch_unwind::h00e84f4e9c3caaa0
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panic.rs:396:14
[INFO] [stdout]   27:     0x55e8a4308fa8 - test::run_test_in_process::hc80321f825c30106
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/test/src/lib.rs:538:18
[INFO] [stdout]   28:     0x55e8a4308fa8 - test::run_test::run_test_inner::{{closure}}::h89c217441620999f
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/test/src/lib.rs:449:39
[INFO] [stdout]   29:     0x55e8a42e3596 - std::sys_common::backtrace::__rust_begin_short_backtrace::h3852ec0877008db6
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   30:     0x55e8a42e7d5d - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h7c7dfff4b938ae67
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/thread/mod.rs:474:17
[INFO] [stdout]   31:     0x55e8a42e7d5d - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8db0dd15c072a403
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panic.rs:322:9
[INFO] [stdout]   32:     0x55e8a42e7d5d - std::panicking::try::do_call::haad8639857ae1187
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:379:40
[INFO] [stdout]   33:     0x55e8a42e7d5d - std::panicking::try::h61de115e9dce60f6
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:343:19
[INFO] [stdout]   34:     0x55e8a42e7d5d - std::panic::catch_unwind::h50601fd82666a838
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panic.rs:396:14
[INFO] [stdout]   35:     0x55e8a42e7d5d - std::thread::Builder::spawn_unchecked::{{closure}}::hac267391ef9d21bd
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/thread/mod.rs:473:30
[INFO] [stdout]   36:     0x55e8a42e7d5d - core::ops::function::FnOnce::call_once{{vtable.shim}}::heb15d2d9c42706b7
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   37:     0x55e8a44ca33a - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5446ed3fdb82006e
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/alloc/src/boxed.rs:1318:9
[INFO] [stdout]   38:     0x55e8a44ca33a - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h62a21a889329a3f2
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/alloc/src/boxed.rs:1318:9
[INFO] [stdout]   39:     0x55e8a44ca33a - std::sys::unix::thread::Thread::new::thread_start::h62402416daf174b6
[INFO] [stdout]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   40:     0x7f98d2bfa609 - start_thread
[INFO] [stdout]   41:     0x7f98d2d51293 - clone
[INFO] [stdout]   42:                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
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--bin rustlings'
[INFO] running `Command { std: "docker" "inspect" "16e7299037531b030512b6ff360eaa831801d74d0306634c568ddc0cd0c0da9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16e7299037531b030512b6ff360eaa831801d74d0306634c568ddc0cd0c0da9f", kill_on_drop: false }`
[INFO] [stdout] 16e7299037531b030512b6ff360eaa831801d74d0306634c568ddc0cd0c0da9f