[INFO] cloning repository https://github.com/JimCodified/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JimCodified/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJimCodified%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJimCodified%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 55a9284665dc6ef5d9db6f73e76630f22d3ea43d [INFO] testing JimCodified/rustlings against master#0d13f6afeba4935499abe0c9a07426c94492c94e for pr-96025 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJimCodified%2Frustlings" "/workspace/builds/worker-2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/JimCodified/rustlings on toolchain 0d13f6afeba4935499abe0c9a07426c94492c94e [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/JimCodified/rustlings [INFO] finished tweaking git repo https://github.com/JimCodified/rustlings [INFO] tweaked toml for git repo https://github.com/JimCodified/rustlings written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/JimCodified/rustlings already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded indicatif v0.10.3 [INFO] [stderr] Downloaded console v0.8.0 [INFO] [stderr] Downloaded float-cmp v0.4.0 [INFO] [stderr] Downloaded normalize-line-endings v0.2.2 [INFO] [stderr] Downloaded console v0.7.7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4803e03436803da8173b4054d3f37b857809a77bd47b4deeb6cce0e9b989c7ac [INFO] running `Command { std: "docker" "start" "-a" "4803e03436803da8173b4054d3f37b857809a77bd47b4deeb6cce0e9b989c7ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4803e03436803da8173b4054d3f37b857809a77bd47b4deeb6cce0e9b989c7ac", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4803e03436803da8173b4054d3f37b857809a77bd47b4deeb6cce0e9b989c7ac", kill_on_drop: false }` [INFO] [stdout] 4803e03436803da8173b4054d3f37b857809a77bd47b4deeb6cce0e9b989c7ac [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 33df760f6d39f918ef19d88d843d6dddb8b11be671d6ecee48306c5ad417ba08 [INFO] running `Command { std: "docker" "start" "-a" "33df760f6d39f918ef19d88d843d6dddb8b11be671d6ecee48306c5ad417ba08", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [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 cfg-if v0.1.9 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.34 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Compiling unicode-width v0.1.5 [INFO] [stderr] Compiling ucd-util v0.1.3 [INFO] [stderr] Compiling scopeguard v1.0.0 [INFO] [stderr] Compiling smallvec v0.6.9 [INFO] [stderr] Compiling utf8-ranges v1.0.2 [INFO] [stderr] Compiling serde v1.0.92 [INFO] [stderr] Compiling bitflags v1.0.4 [INFO] [stderr] Compiling slab v0.4.2 [INFO] [stderr] Compiling lazycell v1.2.1 [INFO] [stderr] Compiling same-file v1.0.4 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling lock_api v0.2.0 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling walkdir v2.2.7 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling rustc_version v0.2.3 [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 regex-syntax v0.6.6 [INFO] [stderr] Compiling aho-corasick v0.7.3 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Compiling clicolors-control v1.0.0 [INFO] [stderr] Compiling termios v0.3.1 [INFO] [stderr] Compiling iovec v0.1.2 [INFO] [stderr] Compiling net2 v0.2.33 [INFO] [stderr] Compiling inotify-sys v0.1.3 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling filetime v0.2.5 [INFO] [stderr] Compiling parking_lot_core v0.5.0 [INFO] [stderr] Compiling parking_lot v0.8.0 [INFO] [stderr] Compiling inotify v0.7.0 [INFO] [stderr] Compiling mio v0.6.19 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling rand_jitter v0.1.4 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling mio-extras v2.0.5 [INFO] [stderr] Compiling notify v4.0.15 [INFO] [stderr] Compiling number_prefix v0.2.8 [INFO] [stderr] Compiling console v0.8.0 [INFO] [stderr] Compiling serde_derive v1.0.92 [INFO] [stderr] Compiling indicatif v0.10.3 [INFO] [stderr] Compiling console v0.7.7 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Compiling rustlings v3.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 2m 43s [INFO] running `Command { std: "docker" "inspect" "33df760f6d39f918ef19d88d843d6dddb8b11be671d6ecee48306c5ad417ba08", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "33df760f6d39f918ef19d88d843d6dddb8b11be671d6ecee48306c5ad417ba08", kill_on_drop: false }` [INFO] [stdout] 33df760f6d39f918ef19d88d843d6dddb8b11be671d6ecee48306c5ad417ba08 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 02b8cf43d352d7337a2ed2867dfd9af08f706df391e5f3259d774339075a8679 [INFO] running `Command { std: "docker" "start" "-a" "02b8cf43d352d7337a2ed2867dfd9af08f706df391e5f3259d774339075a8679", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling ryu v0.2.8 [INFO] [stderr] Compiling escargot v0.4.0 [INFO] [stderr] Compiling predicates-core v1.0.0 [INFO] [stderr] Compiling itoa v0.4.4 [INFO] [stderr] Compiling treeline v0.1.0 [INFO] [stderr] Compiling difference v2.0.0 [INFO] [stderr] Compiling normalize-line-endings v0.2.2 [INFO] [stderr] Compiling glob v0.3.0 [INFO] [stderr] Compiling float-cmp v0.4.0 [INFO] [stderr] Compiling predicates-tree v1.0.0 [INFO] [stderr] Compiling predicates v1.0.1 [INFO] [stderr] Compiling serde_json v1.0.39 [INFO] [stderr] Compiling assert_cmd v0.11.1 [INFO] [stderr] Compiling rustlings v3.0.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 8.56s [INFO] [stderr] Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-304d1f3251ff83dd) [INFO] [stderr] Executable tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-e93c2ae25f6fb382) [INFO] running `Command { std: "docker" "inspect" "02b8cf43d352d7337a2ed2867dfd9af08f706df391e5f3259d774339075a8679", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "02b8cf43d352d7337a2ed2867dfd9af08f706df391e5f3259d774339075a8679", kill_on_drop: false }` [INFO] [stdout] 02b8cf43d352d7337a2ed2867dfd9af08f706df391e5f3259d774339075a8679 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+0d13f6afeba4935499abe0c9a07426c94492c94e" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 571e17340d24f8efaef22f7e8fe32001216cfd06f87aad33f280972c3ec1aee5 [INFO] running `Command { std: "docker" "start" "-a" "571e17340d24f8efaef22f7e8fe32001216cfd06f87aad33f280972c3ec1aee5", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.46s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustlings-304d1f3251ff83dd) [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: ReadOnlyFilesystem, message: "Read-only file system" }', src/exercise.rs:249:36 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x557776a743dd - std::backtrace_rs::backtrace::libunwind::trace::h78ac1a8162560622 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x557776a743dd - std::backtrace_rs::backtrace::trace_unsynchronized::h524b37108170e058 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x557776a743dd - std::sys_common::backtrace::_print_fmt::h6fc64e306477b488 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stdout] 3: 0x557776a743dd - ::fmt::hebf1189a5210d658 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stdout] 4: 0x557776a96e4c - core::fmt::write::h2ee1c47f226b9713 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/fmt/mod.rs:1194:17 [INFO] [stdout] 5: 0x557776a70ec1 - std::io::Write::write_fmt::hfdd07f3252777e56 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/io/mod.rs:1655:15 [INFO] [stdout] 6: 0x557776a75eb5 - std::sys_common::backtrace::_print::h4cf4c3a5df78aa1b [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stdout] 7: 0x557776a75eb5 - std::sys_common::backtrace::print::h563fffe6d3b49d9c [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stdout] 8: 0x557776a75eb5 - std::panicking::default_hook::{{closure}}::h011bf968a019e6ec [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:295:22 [INFO] [stdout] 9: 0x557776a75b60 - std::panicking::default_hook::hc87bc2048234ee21 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:311:9 [INFO] [stdout] 10: 0x557776a76488 - std::panicking::rust_panic_with_hook::h51069032b7e7ea9f [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:698:17 [INFO] [stdout] 11: 0x557776a76337 - std::panicking::begin_panic_handler::{{closure}}::hd6f7b981150e82ee [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:588:13 [INFO] [stdout] 12: 0x557776a74894 - std::sys_common::backtrace::__rust_end_short_backtrace::h4e1327824e6ec426 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stdout] 13: 0x557776a76069 - rust_begin_unwind [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:584:5 [INFO] [stdout] 14: 0x557776899b73 - core::panicking::panic_fmt::hab126d972b27847d [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/panicking.rs:142:14 [INFO] [stdout] 15: 0x557776899c63 - core::result::unwrap_failed::h505ff7a85329e288 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/result.rs:1785:5 [INFO] [stdout] 16: 0x5577768a2130 - core::result::Result::unwrap::hdf81d12b0aa9e17a [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/result.rs:1078:23 [INFO] [stdout] 17: 0x5577768a4919 - rustlings::exercise::test::test_clean::h86fec678efa39e63 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:249:9 [INFO] [stdout] 18: 0x5577768a48aa - rustlings::exercise::test::test_clean::{{closure}}::h96d61c583fbe9660 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:248:5 [INFO] [stdout] 19: 0x5577768a375e - core::ops::function::FnOnce::call_once::hdbfcd3c8c8ac9287 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 20: 0x5577768dc5e3 - core::ops::function::FnOnce::call_once::hb5269c40ea602927 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 21: 0x5577768dc5e3 - test::__rust_begin_short_backtrace::h39a42cc37c7f7ed5 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/test/src/lib.rs:573:5 [INFO] [stdout] 22: 0x5577768db39a - as core::ops::function::FnOnce>::call_once::h00241665904b35f8 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/alloc/src/boxed.rs:1866:9 [INFO] [stdout] 23: 0x5577768db39a - as core::ops::function::FnOnce<()>>::call_once::he7accf8d0443853e [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 24: 0x5577768db39a - std::panicking::try::do_call::h8cda4fd0453ea304 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:492:40 [INFO] [stdout] 25: 0x5577768db39a - std::panicking::try::heb9894546bccbe80 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:456:19 [INFO] [stdout] 26: 0x5577768db39a - std::panic::catch_unwind::hfbd25fb469936dab [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panic.rs:137:14 [INFO] [stdout] 27: 0x5577768db39a - test::run_test_in_process::hcffcac4908c29650 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/test/src/lib.rs:596:18 [INFO] [stdout] 28: 0x5577768db39a - test::run_test::run_test_inner::{{closure}}::hdd8d05d3b7659acd [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/test/src/lib.rs:490:39 [INFO] [stdout] 29: 0x5577768a765d - test::run_test::run_test_inner::{{closure}}::h1b7cafce81b35e92 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/test/src/lib.rs:517:37 [INFO] [stdout] 30: 0x5577768a765d - std::sys_common::backtrace::__rust_begin_short_backtrace::h08b4f3108673434a [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stdout] 31: 0x5577768ad098 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hd589e3bca91eca1f [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/thread/mod.rs:498:17 [INFO] [stdout] 32: 0x5577768ad098 - as core::ops::function::FnOnce<()>>::call_once::h1d80af9fe40fb31c [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 33: 0x5577768ad098 - std::panicking::try::do_call::hf7eabf04235f3bb3 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:492:40 [INFO] [stdout] 34: 0x5577768ad098 - std::panicking::try::h4bdb1612b5a13d83 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:456:19 [INFO] [stdout] 35: 0x5577768ad098 - std::panic::catch_unwind::h62e1449b19ecdfe5 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panic.rs:137:14 [INFO] [stdout] 36: 0x5577768ad098 - std::thread::Builder::spawn_unchecked_::{{closure}}::h10c97d98a69723ec [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/thread/mod.rs:497:30 [INFO] [stdout] 37: 0x5577768ad098 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h0dc62d4cd77dd031 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 38: 0x557776a7af63 - as core::ops::function::FnOnce>::call_once::h94b91777dd72cf4b [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/alloc/src/boxed.rs:1866:9 [INFO] [stdout] 39: 0x557776a7af63 - as core::ops::function::FnOnce>::call_once::hc38439f882108053 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/alloc/src/boxed.rs:1866:9 [INFO] [stdout] 40: 0x557776a7af63 - std::sys::unix::thread::Thread::new::thread_start::haa68127701babb00 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 41: 0x7f3825282609 - start_thread [INFO] [stdout] 42: 0x7f38253d7163 - 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_9.54b1o2bz4hkzhfj4.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:322:38 [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x557776a743dd - std::backtrace_rs::backtrace::libunwind::trace::h78ac1a8162560622 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 [INFO] [stdout] 1: 0x557776a743dd - std::backtrace_rs::backtrace::trace_unsynchronized::h524b37108170e058 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 [INFO] [stdout] 2: 0x557776a743dd - std::sys_common::backtrace::_print_fmt::h6fc64e306477b488 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/sys_common/backtrace.rs:66:5 [INFO] [stdout] 3: 0x557776a743dd - ::fmt::hebf1189a5210d658 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/sys_common/backtrace.rs:45:22 [INFO] [stdout] 4: 0x557776a96e4c - core::fmt::write::h2ee1c47f226b9713 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/fmt/mod.rs:1194:17 [INFO] [stdout] 5: 0x557776a70ec1 - std::io::Write::write_fmt::hfdd07f3252777e56 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/io/mod.rs:1655:15 [INFO] [stdout] 6: 0x557776a75eb5 - std::sys_common::backtrace::_print::h4cf4c3a5df78aa1b [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/sys_common/backtrace.rs:48:5 [INFO] [stdout] 7: 0x557776a75eb5 - std::sys_common::backtrace::print::h563fffe6d3b49d9c [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/sys_common/backtrace.rs:35:9 [INFO] [stdout] 8: 0x557776a75eb5 - std::panicking::default_hook::{{closure}}::h011bf968a019e6ec [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:295:22 [INFO] [stdout] 9: 0x557776a75b60 - std::panicking::default_hook::hc87bc2048234ee21 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:311:9 [INFO] [stdout] 10: 0x557776a76488 - std::panicking::rust_panic_with_hook::h51069032b7e7ea9f [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:698:17 [INFO] [stdout] 11: 0x557776a76337 - std::panicking::begin_panic_handler::{{closure}}::hd6f7b981150e82ee [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:588:13 [INFO] [stdout] 12: 0x557776a74894 - std::sys_common::backtrace::__rust_end_short_backtrace::h4e1327824e6ec426 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/sys_common/backtrace.rs:138:18 [INFO] [stdout] 13: 0x557776a76069 - rust_begin_unwind [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:584:5 [INFO] [stdout] 14: 0x557776899b73 - core::panicking::panic_fmt::hab126d972b27847d [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/panicking.rs:142:14 [INFO] [stdout] 15: 0x557776899c63 - core::result::unwrap_failed::h505ff7a85329e288 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/result.rs:1785:5 [INFO] [stdout] 16: 0x5577768a1fc2 - core::result::Result::unwrap::h5b533f3f4a82bf18 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/result.rs:1078:23 [INFO] [stdout] 17: 0x5577768a557c - rustlings::exercise::test::test_exercise_with_output::h844072873457b9a8 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:322:19 [INFO] [stdout] 18: 0x5577768a540a - rustlings::exercise::test::test_exercise_with_output::{{closure}}::hd02b4f5ea64215d0 [INFO] [stdout] at /opt/rustwide/workdir/src/exercise.rs:315:5 [INFO] [stdout] 19: 0x5577768a36ae - core::ops::function::FnOnce::call_once::h1fd64587ec6b6e03 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 20: 0x5577768dc5e3 - core::ops::function::FnOnce::call_once::hb5269c40ea602927 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 21: 0x5577768dc5e3 - test::__rust_begin_short_backtrace::h39a42cc37c7f7ed5 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/test/src/lib.rs:573:5 [INFO] [stdout] 22: 0x5577768db39a - as core::ops::function::FnOnce>::call_once::h00241665904b35f8 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/alloc/src/boxed.rs:1866:9 [INFO] [stdout] 23: 0x5577768db39a - as core::ops::function::FnOnce<()>>::call_once::he7accf8d0443853e [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 24: 0x5577768db39a - std::panicking::try::do_call::h8cda4fd0453ea304 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:492:40 [INFO] [stdout] 25: 0x5577768db39a - std::panicking::try::heb9894546bccbe80 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:456:19 [INFO] [stdout] 26: 0x5577768db39a - std::panic::catch_unwind::hfbd25fb469936dab [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panic.rs:137:14 [INFO] [stdout] 27: 0x5577768db39a - test::run_test_in_process::hcffcac4908c29650 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/test/src/lib.rs:596:18 [INFO] [stdout] 28: 0x5577768db39a - test::run_test::run_test_inner::{{closure}}::hdd8d05d3b7659acd [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/test/src/lib.rs:490:39 [INFO] [stdout] 29: 0x5577768a765d - test::run_test::run_test_inner::{{closure}}::h1b7cafce81b35e92 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/test/src/lib.rs:517:37 [INFO] [stdout] 30: 0x5577768a765d - std::sys_common::backtrace::__rust_begin_short_backtrace::h08b4f3108673434a [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/sys_common/backtrace.rs:122:18 [INFO] [stdout] 31: 0x5577768ad098 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hd589e3bca91eca1f [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/thread/mod.rs:498:17 [INFO] [stdout] 32: 0x5577768ad098 - as core::ops::function::FnOnce<()>>::call_once::h1d80af9fe40fb31c [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/panic/unwind_safe.rs:271:9 [INFO] [stdout] 33: 0x5577768ad098 - std::panicking::try::do_call::hf7eabf04235f3bb3 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:492:40 [INFO] [stdout] 34: 0x5577768ad098 - std::panicking::try::h4bdb1612b5a13d83 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panicking.rs:456:19 [INFO] [stdout] 35: 0x5577768ad098 - std::panic::catch_unwind::h62e1449b19ecdfe5 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/panic.rs:137:14 [INFO] [stdout] 36: 0x5577768ad098 - std::thread::Builder::spawn_unchecked_::{{closure}}::h10c97d98a69723ec [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/thread/mod.rs:497:30 [INFO] [stdout] 37: 0x5577768ad098 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h0dc62d4cd77dd031 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/core/src/ops/function.rs:248:5 [INFO] [stdout] 38: 0x557776a7af63 - as core::ops::function::FnOnce>::call_once::h94b91777dd72cf4b [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/alloc/src/boxed.rs:1866:9 [INFO] [stdout] 39: 0x557776a7af63 - as core::ops::function::FnOnce>::call_once::hc38439f882108053 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/alloc/src/boxed.rs:1866:9 [INFO] [stdout] 40: 0x557776a7af63 - std::sys::unix::thread::Thread::new::thread_start::haa68127701babb00 [INFO] [stdout] at /rustc/0d13f6afeba4935499abe0c9a07426c94492c94e/library/std/src/sys/unix/thread.rs:108:17 [INFO] [stdout] 41: 0x7f3825282609 - start_thread [INFO] [stdout] 42: 0x7f38253d7163 - 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 0.11s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass '--bin rustlings' [INFO] running `Command { std: "docker" "inspect" "571e17340d24f8efaef22f7e8fe32001216cfd06f87aad33f280972c3ec1aee5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "571e17340d24f8efaef22f7e8fe32001216cfd06f87aad33f280972c3ec1aee5", kill_on_drop: false }` [INFO] [stdout] 571e17340d24f8efaef22f7e8fe32001216cfd06f87aad33f280972c3ec1aee5