[INFO] cloning repository https://github.com/thongdo2101/rustlings-learning [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thongdo2101/rustlings-learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthongdo2101%2Frustlings-learning", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthongdo2101%2Frustlings-learning'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b5b0d557c96b2ce3ad18392cc0ee75f4424e3c54 [INFO] testing thongdo2101/rustlings-learning against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthongdo2101%2Frustlings-learning" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/thongdo2101/rustlings-learning on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/thongdo2101/rustlings-learning [INFO] finished tweaking git repo https://github.com/thongdo2101/rustlings-learning [INFO] tweaked toml for git repo https://github.com/thongdo2101/rustlings-learning written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/thongdo2101/rustlings-learning already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] bb616bda943607fd16c8928e2346593d70166c10fb4acd5bb54de7ea9037b024 [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" "bb616bda943607fd16c8928e2346593d70166c10fb4acd5bb54de7ea9037b024", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "bb616bda943607fd16c8928e2346593d70166c10fb4acd5bb54de7ea9037b024", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "bb616bda943607fd16c8928e2346593d70166c10fb4acd5bb54de7ea9037b024", kill_on_drop: false }` [INFO] [stdout] bb616bda943607fd16c8928e2346593d70166c10fb4acd5bb54de7ea9037b024 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 76a5bb2ee6acf89a42b241439e07c7b397fe41ee3418dc466c58a04dd2a8c037 [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" "76a5bb2ee6acf89a42b241439e07c7b397fe41ee3418dc466c58a04dd2a8c037", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.100 [INFO] [stderr] Compiling cfg-if v1.0.0 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.75 [INFO] [stderr] Compiling log v0.4.14 [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling smallvec v1.6.1 [INFO] [stderr] Compiling serde_derive v1.0.129 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling unicode-width v0.1.8 [INFO] [stderr] Compiling serde v1.0.129 [INFO] [stderr] Compiling unicode-segmentation v1.8.0 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling argh_shared v0.1.5 [INFO] [stderr] Compiling same-file v1.0.6 [INFO] [stderr] Compiling lazycell v1.3.0 [INFO] [stderr] Compiling instant v0.1.10 [INFO] [stderr] Compiling lock_api v0.4.4 [INFO] [stderr] Compiling proc-macro2 v1.0.28 [INFO] [stderr] Compiling walkdir v2.3.2 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling heck v0.3.3 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Compiling iovec v0.1.4 [INFO] [stderr] Compiling net2 v0.2.37 [INFO] [stderr] Compiling parking_lot_core v0.8.3 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling inotify-sys v0.1.5 [INFO] [stderr] Compiling filetime v0.2.15 [INFO] [stderr] Compiling atty v0.2.14 [INFO] [stderr] Compiling termios v0.3.3 [INFO] [stderr] Compiling clicolors-control v1.0.1 [INFO] [stderr] Compiling inotify v0.7.1 [INFO] [stderr] Compiling parking_lot v0.11.1 [INFO] [stderr] Compiling mio v0.6.23 [INFO] [stderr] Compiling number_prefix v0.2.8 [INFO] [stderr] Compiling regex v1.5.4 [INFO] [stderr] Compiling mio-extras v2.0.6 [INFO] [stderr] Compiling notify v4.0.17 [INFO] [stderr] Compiling argh_derive v0.1.5 [INFO] [stderr] Compiling console v0.14.1 [INFO] [stderr] Compiling console v0.7.7 [INFO] [stderr] Compiling indicatif v0.10.3 [INFO] [stderr] Compiling argh v0.1.5 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v4.5.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1m 11s [INFO] running `Command { std: "docker" "inspect" "76a5bb2ee6acf89a42b241439e07c7b397fe41ee3418dc466c58a04dd2a8c037", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "76a5bb2ee6acf89a42b241439e07c7b397fe41ee3418dc466c58a04dd2a8c037", kill_on_drop: false }` [INFO] [stdout] 76a5bb2ee6acf89a42b241439e07c7b397fe41ee3418dc466c58a04dd2a8c037 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] fc177e85b139bc7683cecff72aee40727ef3b7567cd97efdcfc266a7853014c6 [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" "fc177e85b139bc7683cecff72aee40727ef3b7567cd97efdcfc266a7853014c6", kill_on_drop: false }` [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling itoa v0.4.8 [INFO] [stderr] Compiling normalize-line-endings v0.3.0 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling predicates-tree v1.0.3 [INFO] [stderr] Compiling float-cmp v0.8.0 [INFO] [stderr] Compiling predicates v1.0.8 [INFO] [stderr] Compiling serde_json v1.0.66 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v4.5.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 16.51s [INFO] running `Command { std: "docker" "inspect" "fc177e85b139bc7683cecff72aee40727ef3b7567cd97efdcfc266a7853014c6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fc177e85b139bc7683cecff72aee40727ef3b7567cd97efdcfc266a7853014c6", kill_on_drop: false }` [INFO] [stdout] fc177e85b139bc7683cecff72aee40727ef3b7567cd97efdcfc266a7853014c6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 77b24aa04668593ab034902e2856d3b4fbfaf33d95992a309a3c716660e7dbcb [INFO] running `Command { std: "docker" "start" "-a" "77b24aa04668593ab034902e2856d3b4fbfaf33d95992a309a3c716660e7dbcb", kill_on_drop: false }` [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rustlings-30839bf96f3cc21f) [INFO] [stdout] [INFO] [stdout] running 4 tests [INFO] [stdout] test exercise::test::test_pending_state ... ok [INFO] [stdout] test exercise::test::test_finished_exercise ... 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: ReadOnlyFilesystem, message: "Read-only file system" }', src/exercise.rs:270:36 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55d6daeb389c - std::backtrace_rs::backtrace::libunwind::trace::h793e05efd273d0f4 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x55d6daeb389c - std::backtrace_rs::backtrace::trace_unsynchronized::h640b7b86ff610c77 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55d6daeb389c - std::sys_common::backtrace::_print_fmt::h362fa2a4f354f877 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x55d6daeb389c - ::fmt::hf439e5ed84c74abd [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x55d6daed6a8c - core::fmt::write::h72801a82c94e6ff1 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/fmt/mod.rs:1149:17 [INFO] [stdout] 5: 0x55d6daeaf825 - std::io::Write::write_fmt::h54337adeb3504c03 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/io/mod.rs:1697:15 [INFO] [stdout] 6: 0x55d6daeb52f0 - std::sys_common::backtrace::_print::hb29ddd998d02631c [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x55d6daeb52f0 - std::sys_common::backtrace::print::h81965e3d7c90fbb6 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x55d6daeb52f0 - std::panicking::default_hook::{{closure}}::h84db205ab6674b38 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:211:50 [INFO] [stdout] 9: 0x55d6daeb4ed6 - std::panicking::default_hook::h1bf8bb4159936bca [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:225:9 [INFO] [stdout] 10: 0x55d6daeb59a4 - std::panicking::rust_panic_with_hook::hf8e86850fbbd03b1 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:606:17 [INFO] [stdout] 11: 0x55d6daeb5480 - std::panicking::begin_panic_handler::{{closure}}::h590a0d6060ff866e [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:502:13 [INFO] [stdout] 12: 0x55d6daeb3d54 - std::sys_common::backtrace::__rust_end_short_backtrace::h260b8bd1c848a03c [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:139:18 [INFO] [stdout] 13: 0x55d6daeb53e9 - rust_begin_unwind [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:498:5 [INFO] [stdout] 14: 0x55d6dacb0d81 - core::panicking::panic_fmt::h7b8580d81fcbbacd [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panicking.rs:106:14 [INFO] [stdout] 15: 0x55d6dacb0e73 - core::result::unwrap_failed::h885d3f7beb571353 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1613:5 [INFO] [stdout] 16: 0x55d6dacbc9ad - core::result::Result::unwrap::h1f784cebc9f58572 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1295:23 [INFO] [stdout] 17: 0x55d6dacb58a3 - rustlings::exercise::test::test_clean::h260822ab6cf12efe [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:270:9 [INFO] [stdout] 18: 0x55d6dacb585a - rustlings::exercise::test::test_clean::{{closure}}::hc29ef12c70975692 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:269:5 [INFO] [stdout] 19: 0x55d6dacbe9ce - core::ops::function::FnOnce::call_once::hd73e909332539fcb [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 20: 0x55d6dacfc233 - core::ops::function::FnOnce::call_once::h24a32b9da1a40fdb [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 21: 0x55d6dacfc233 - test::__rust_begin_short_backtrace::h3c3a0492fb4a12eb [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:585:5 [INFO] [stdout] 22: 0x55d6dacfae47 - as core::ops::function::FnOnce>::call_once::h9a8e38435f73d5e0 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 23: 0x55d6dacfae47 - as core::ops::function::FnOnce<()>>::call_once::hb23d7496a0e6d1b4 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 24: 0x55d6dacfae47 - std::panicking::try::do_call::ha2bb9825b32d2cc2 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40 [INFO] [stdout] 25: 0x55d6dacfae47 - std::panicking::try::hdc38a574bbebc53e [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19 [INFO] [stdout] 26: 0x55d6dacfae47 - std::panic::catch_unwind::hc45ed246595c621c [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14 [INFO] [stdout] 27: 0x55d6dacfae47 - test::run_test_in_process::h4249138faaea8d54 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:608:18 [INFO] [stdout] 28: 0x55d6dacfae47 - test::run_test::run_test_inner::{{closure}}::h3c1b37669f6e9fd7 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:500:39 [INFO] [stdout] 29: 0x55d6dacc80ee - test::run_test::run_test_inner::{{closure}}::h388760469edd5c24 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:527:37 [INFO] [stdout] 30: 0x55d6dacc80ee - std::sys_common::backtrace::__rust_begin_short_backtrace::hbbaecdcfad18643e [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:123:18 [INFO] [stdout] 31: 0x55d6daccce48 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h09cd3ca65896da91 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:484:17 [INFO] [stdout] 32: 0x55d6daccce48 - as core::ops::function::FnOnce<()>>::call_once::hc52dbb4f9088d18b [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 33: 0x55d6daccce48 - std::panicking::try::do_call::h4485cfee22b11c08 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40 [INFO] [stdout] 34: 0x55d6daccce48 - std::panicking::try::hb62aa8549e20c08b [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19 [INFO] [stdout] 35: 0x55d6daccce48 - std::panic::catch_unwind::ha322c7a5bc666762 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14 [INFO] [stdout] 36: 0x55d6daccce48 - std::thread::Builder::spawn_unchecked::{{closure}}::h1076fc1398603b77 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:483:30 [INFO] [stdout] 37: 0x55d6daccce48 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h911e510344167353 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 38: 0x55d6daeba723 - as core::ops::function::FnOnce>::call_once::h771719d52c343434 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 39: 0x55d6daeba723 - as core::ops::function::FnOnce>::call_once::hf441746dfa4b0f57 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 40: 0x55d6daeba723 - std::sys::unix::thread::Thread::new::thread_start::hfd168f9d312b29ca [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys/unix/thread.rs:106:17 [INFO] [stdout] 41: 0x7f8f80c97609 - start_thread [INFO] [stdout] 42: 0x7f8f80dee293 - clone [INFO] [stdout] 43: 0x0 - [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_7_ThreadId3.testSuccess.7179e081-cgu.6.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:343:38 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x55d6daeb389c - std::backtrace_rs::backtrace::libunwind::trace::h793e05efd273d0f4 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x55d6daeb389c - std::backtrace_rs::backtrace::trace_unsynchronized::h640b7b86ff610c77 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x55d6daeb389c - std::sys_common::backtrace::_print_fmt::h362fa2a4f354f877 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:67:5 [INFO] [stdout] 3: 0x55d6daeb389c - ::fmt::hf439e5ed84c74abd [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:46:22 [INFO] [stdout] 4: 0x55d6daed6a8c - core::fmt::write::h72801a82c94e6ff1 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/fmt/mod.rs:1149:17 [INFO] [stdout] 5: 0x55d6daeaf825 - std::io::Write::write_fmt::h54337adeb3504c03 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/io/mod.rs:1697:15 [INFO] [stdout] 6: 0x55d6daeb52f0 - std::sys_common::backtrace::_print::hb29ddd998d02631c [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:49:5 [INFO] [stdout] 7: 0x55d6daeb52f0 - std::sys_common::backtrace::print::h81965e3d7c90fbb6 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:36:9 [INFO] [stdout] 8: 0x55d6daeb52f0 - std::panicking::default_hook::{{closure}}::h84db205ab6674b38 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:211:50 [INFO] [stdout] 9: 0x55d6daeb4ed6 - std::panicking::default_hook::h1bf8bb4159936bca [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:225:9 [INFO] [stdout] 10: 0x55d6daeb59a4 - std::panicking::rust_panic_with_hook::hf8e86850fbbd03b1 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:606:17 [INFO] [stdout] 11: 0x55d6daeb5480 - std::panicking::begin_panic_handler::{{closure}}::h590a0d6060ff866e [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:502:13 [INFO] [stdout] 12: 0x55d6daeb3d54 - std::sys_common::backtrace::__rust_end_short_backtrace::h260b8bd1c848a03c [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:139:18 [INFO] [stdout] 13: 0x55d6daeb53e9 - rust_begin_unwind [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:498:5 [INFO] [stdout] 14: 0x55d6dacb0d81 - core::panicking::panic_fmt::h7b8580d81fcbbacd [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panicking.rs:106:14 [INFO] [stdout] 15: 0x55d6dacb0e73 - core::result::unwrap_failed::h885d3f7beb571353 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1613:5 [INFO] [stdout] 16: 0x55d6dacbcb12 - core::result::Result::unwrap::hf968615e0f41384d [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/result.rs:1295:23 [INFO] [stdout] 17: 0x55d6dacb64cc - rustlings::exercise::test::test_exercise_with_output::hb719eeebc6042311 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:343:19 [INFO] [stdout] 18: 0x55d6dacb638a - rustlings::exercise::test::test_exercise_with_output::{{closure}}::h160bbd084ab64df3 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:336:5 [INFO] [stdout] 19: 0x55d6dacbe87e - core::ops::function::FnOnce::call_once::h46c2ef8c7ad1828d [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 20: 0x55d6dacfc233 - core::ops::function::FnOnce::call_once::h24a32b9da1a40fdb [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 21: 0x55d6dacfc233 - test::__rust_begin_short_backtrace::h3c3a0492fb4a12eb [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:585:5 [INFO] [stdout] 22: 0x55d6dacfae47 - as core::ops::function::FnOnce>::call_once::h9a8e38435f73d5e0 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 23: 0x55d6dacfae47 - as core::ops::function::FnOnce<()>>::call_once::hb23d7496a0e6d1b4 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 24: 0x55d6dacfae47 - std::panicking::try::do_call::ha2bb9825b32d2cc2 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40 [INFO] [stdout] 25: 0x55d6dacfae47 - std::panicking::try::hdc38a574bbebc53e [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19 [INFO] [stdout] 26: 0x55d6dacfae47 - std::panic::catch_unwind::hc45ed246595c621c [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14 [INFO] [stdout] 27: 0x55d6dacfae47 - test::run_test_in_process::h4249138faaea8d54 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:608:18 [INFO] [stdout] 28: 0x55d6dacfae47 - test::run_test::run_test_inner::{{closure}}::h3c1b37669f6e9fd7 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:500:39 [INFO] [stdout] 29: 0x55d6dacc80ee - test::run_test::run_test_inner::{{closure}}::h388760469edd5c24 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/test/src/lib.rs:527:37 [INFO] [stdout] 30: 0x55d6dacc80ee - std::sys_common::backtrace::__rust_begin_short_backtrace::hbbaecdcfad18643e [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys_common/backtrace.rs:123:18 [INFO] [stdout] 31: 0x55d6daccce48 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h09cd3ca65896da91 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:484:17 [INFO] [stdout] 32: 0x55d6daccce48 - as core::ops::function::FnOnce<()>>::call_once::hc52dbb4f9088d18b [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 33: 0x55d6daccce48 - std::panicking::try::do_call::h4485cfee22b11c08 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:406:40 [INFO] [stdout] 34: 0x55d6daccce48 - std::panicking::try::hb62aa8549e20c08b [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panicking.rs:370:19 [INFO] [stdout] 35: 0x55d6daccce48 - std::panic::catch_unwind::ha322c7a5bc666762 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/panic.rs:133:14 [INFO] [stdout] 36: 0x55d6daccce48 - std::thread::Builder::spawn_unchecked::{{closure}}::h1076fc1398603b77 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/thread/mod.rs:483:30 [INFO] [stdout] 37: 0x55d6daccce48 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h911e510344167353 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/core/src/ops/function.rs:227:5 [INFO] [stdout] 38: 0x55d6daeba723 - as core::ops::function::FnOnce>::call_once::h771719d52c343434 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 39: 0x55d6daeba723 - as core::ops::function::FnOnce>::call_once::hf441746dfa4b0f57 [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/alloc/src/boxed.rs:1694:9 [INFO] [stdout] 40: 0x55d6daeba723 - std::sys::unix::thread::Thread::new::thread_start::hfd168f9d312b29ca [INFO] [stdout] at /rustc/8262275854dc0e5381c9d42d56257d94932c5a87/library/std/src/sys/unix/thread.rs:106:17 [INFO] [stdout] 41: 0x7f8f80c97609 - start_thread [INFO] [stdout] 42: 0x7f8f80dee293 - clone [INFO] [stdout] 43: 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 0.23s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--bin rustlings' [INFO] running `Command { std: "docker" "inspect" "77b24aa04668593ab034902e2856d3b4fbfaf33d95992a309a3c716660e7dbcb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "77b24aa04668593ab034902e2856d3b4fbfaf33d95992a309a3c716660e7dbcb", kill_on_drop: false }` [INFO] [stdout] 77b24aa04668593ab034902e2856d3b4fbfaf33d95992a309a3c716660e7dbcb