[INFO] cloning repository https://github.com/cbhuber17/rust-quadratic-solver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cbhuber17/rust-quadratic-solver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbhuber17%2Frust-quadratic-solver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbhuber17%2Frust-quadratic-solver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bc8ee68299ba249552966e65174270d5062beecd
[INFO] testing cbhuber17/rust-quadratic-solver against nightly-2025-01-18 for randomize-layout-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcbhuber17%2Frust-quadratic-solver" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cbhuber17/rust-quadratic-solver on toolchain nightly-2025-01-18
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2025-01-18" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cbhuber17/rust-quadratic-solver
[INFO] finished tweaking git repo https://github.com/cbhuber17/rust-quadratic-solver
[INFO] tweaked toml for git repo https://github.com/cbhuber17/rust-quadratic-solver written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/cbhuber17/rust-quadratic-solver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2025-01-18" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee21b5e84eac1d45e6f63e015c975e96ea578dfa6dc1c261d76bdc66c99e5119
[INFO] running `Command { std: "docker" "start" "-a" "ee21b5e84eac1d45e6f63e015c975e96ea578dfa6dc1c261d76bdc66c99e5119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee21b5e84eac1d45e6f63e015c975e96ea578dfa6dc1c261d76bdc66c99e5119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee21b5e84eac1d45e6f63e015c975e96ea578dfa6dc1c261d76bdc66c99e5119", kill_on_drop: false }`
[INFO] [stdout] ee21b5e84eac1d45e6f63e015c975e96ea578dfa6dc1c261d76bdc66c99e5119
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4f11e9bbc996cab279253d71415ffbdff7ca9715b1770c4ed7a4fd898a68407f
[INFO] running `Command { std: "docker" "start" "-a" "4f11e9bbc996cab279253d71415ffbdff7ca9715b1770c4ed7a4fd898a68407f", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling unicode-width v0.1.11
[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling colored v2.1.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.5
[INFO] [stderr]    Compiling num-iter v0.1.44
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling num v0.4.1
[INFO] [stderr]    Compiling structopt v0.3.26
[INFO] [stderr]    Compiling rust-quadratic-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.92s
[INFO] running `Command { std: "docker" "inspect" "4f11e9bbc996cab279253d71415ffbdff7ca9715b1770c4ed7a4fd898a68407f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f11e9bbc996cab279253d71415ffbdff7ca9715b1770c4ed7a4fd898a68407f", kill_on_drop: false }`
[INFO] [stdout] 4f11e9bbc996cab279253d71415ffbdff7ca9715b1770c4ed7a4fd898a68407f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9839449b9581d3eb74fa1951179bb19a5218146904c1a4b373d8553088706cf4
[INFO] running `Command { std: "docker" "start" "-a" "9839449b9581d3eb74fa1951179bb19a5218146904c1a4b373d8553088706cf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling serde_json v1.0.114
[INFO] [stderr]    Compiling ryu v1.0.17
[INFO] [stderr]    Compiling itoa v1.0.10
[INFO] [stderr]    Compiling either v1.10.0
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]    Compiling plotters-backend v0.3.5
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling syn v2.0.51
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling plotters-svg v0.3.5
[INFO] [stderr]    Compiling half v1.8.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling csv-core v0.1.11
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling crossbeam-deque v0.8.5
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling walkdir v2.4.0
[INFO] [stderr]    Compiling num-integer v0.1.46
[INFO] [stderr]    Compiling num-complex v0.4.5
[INFO] [stderr]    Compiling regex-automata v0.4.5
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.44
[INFO] [stderr]    Compiling criterion-plot v0.4.5
[INFO] [stderr]    Compiling rayon v1.9.0
[INFO] [stderr]    Compiling plotters v0.3.5
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling num v0.4.1
[INFO] [stderr]    Compiling csv v1.3.0
[INFO] [stderr]    Compiling rust-quadratic-solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling criterion v0.3.6
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 33.07s
[INFO] running `Command { std: "docker" "inspect" "9839449b9581d3eb74fa1951179bb19a5218146904c1a4b373d8553088706cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9839449b9581d3eb74fa1951179bb19a5218146904c1a4b373d8553088706cf4", kill_on_drop: false }`
[INFO] [stdout] 9839449b9581d3eb74fa1951179bb19a5218146904c1a4b373d8553088706cf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cb204f6af2992d4b278b694508b844794b93eec8c1b25194e15930d5b5c506b0
[INFO] running `Command { std: "docker" "start" "-a" "cb204f6af2992d4b278b694508b844794b93eec8c1b25194e15930d5b5c506b0", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rust_quadratic_solver-a4be385bdc40df5e)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test::test_complex_quadratic ... ok
[INFO] [stdout] test test::test_real_quadratic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_quadratic_solver-d2ecc8c05658ab59)
[INFO] [stderr]    Doc-tests rust_quadratic_solver
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - utils::print_results (line 121) ... ok
[INFO] [stdout] test src/lib.rs - quadratic::solve_quadratic (line 28) ... ok
[INFO] [stdout] test src/lib.rs - utils::write_results_to_file (line 163) ... FAILED
[INFO] [stdout] test src/lib.rs - utils::create_file (line 83) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - utils::write_results_to_file (line 163) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' panicked at src/lib.rs:11:43:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5f7850f0300a - std::backtrace_rs::backtrace::libunwind::trace::hb059275cfc8d6126
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x5f7850f0300a - std::backtrace_rs::backtrace::trace_unsynchronized::h2da071e4327ce3ee
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5f7850f0300a - std::sys::backtrace::_print_fmt::h842a1474e6f8d23f
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5f7850f0300a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h71a62eb3b9696b12
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5f7850f24143 - core::fmt::rt::Argument::fmt::hdb6b616786b41dc1
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x5f7850f24143 - core::fmt::write::h2cc1698af7e2d686
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/fmt/mod.rs:1440:21
[INFO] [stdout]    6:     0x5f7850f00523 - std::io::Write::write_fmt::h00c8700df393f328
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/io/mod.rs:1887:15
[INFO] [stdout]    7:     0x5f7850f02e52 - std::sys::backtrace::BacktraceLock::print::h147fe35b4ea13b08
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x5f7850f03d9f - std::panicking::default_hook::{{closure}}::hbd44223dbdc0d208
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:298:22
[INFO] [stdout]    9:     0x5f7850f03c0a - std::panicking::default_hook::h20f81eb0576efcec
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:325:9
[INFO] [stdout]   10:     0x5f7850f04672 - std::panicking::rust_panic_with_hook::h625eea43051b2edc
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:831:13
[INFO] [stdout]   11:     0x5f7850f0450a - std::panicking::begin_panic_handler::{{closure}}::h4f9159cfbc3f6bd3
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:704:13
[INFO] [stdout]   12:     0x5f7850f03509 - std::sys::backtrace::__rust_end_short_backtrace::h0390abce48353151
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   13:     0x5f7850f0419d - rust_begin_unwind
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:695:5
[INFO] [stdout]   14:     0x5f7850f22cb0 - core::panicking::panic_fmt::h9e7c637e9e5f29c9
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panicking.rs:75:14
[INFO] [stdout]   15:     0x5f7850f23056 - core::result::unwrap_failed::h7979f09313fe1849
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/result.rs:1704:5
[INFO] [stdout]   16:     0x5f7850ed262a - rust_out::main::_doctest_main_src_lib_rs_163_0::h6b5387ca283db809
[INFO] [stdout]   17:     0x5f7850ed25a6 - rust_out::main::he88f0b9b281d54e0
[INFO] [stdout]   18:     0x5f7850ed1f83 - core::ops::function::FnOnce::call_once::hcf3829d8b58d0254
[INFO] [stdout]   19:     0x5f7850ed1ee6 - std::sys::backtrace::__rust_begin_short_backtrace::h5e1527399e8d5bd4
[INFO] [stdout]   20:     0x5f7850ed1e19 - std::rt::lang_start::{{closure}}::h2c234101ed7b1b74
[INFO] [stdout]   21:     0x5f7850efd820 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h1b085b6c1d2518b2
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   22:     0x5f7850efd820 - std::panicking::try::do_call::h382f964a5a23b565
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:587:40
[INFO] [stdout]   23:     0x5f7850efd820 - std::panicking::try::h57f991055eb622f9
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:550:19
[INFO] [stdout]   24:     0x5f7850efd820 - std::panic::catch_unwind::h4d9a74ef04456343
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panic.rs:358:14
[INFO] [stdout]   25:     0x5f7850efd820 - std::rt::lang_start_internal::{{closure}}::h2faa8ae84a93f314
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/rt.rs:163:24
[INFO] [stdout]   26:     0x5f7850efd820 - std::panicking::try::do_call::h0f8932bf638a9bf5
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:587:40
[INFO] [stdout]   27:     0x5f7850efd820 - std::panicking::try::h683416ea756b175d
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:550:19
[INFO] [stdout]   28:     0x5f7850efd820 - std::panic::catch_unwind::h56189fac8994979f
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panic.rs:358:14
[INFO] [stdout]   29:     0x5f7850efd820 - std::rt::lang_start_internal::h8bbc1061691274fe
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/rt.rs:159:5
[INFO] [stdout]   30:     0x5f7850ed1e01 - std::rt::lang_start::h601b10a269c70ef7
[INFO] [stdout]   31:     0x5f7850ed2725 - main
[INFO] [stdout]   32:     0x763b235dad90 - <unknown>
[INFO] [stdout]   33:     0x763b235dae40 - __libc_start_main
[INFO] [stdout]   34:     0x5f7850ed1935 - _start
[INFO] [stdout]   35:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - utils::create_file (line 83) stdout ----
[INFO] [stdout] Test executable failed (exit status: 101).
[INFO] [stdout] 
[INFO] [stdout] stderr:
[INFO] [stdout] 
[INFO] [stdout] thread 'main' panicked at src/lib.rs:104:25:
[INFO] [stdout] ERROR: Could not create file: example.csv due to: Read-only file system (os error 30)
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x58806ed826aa - std::backtrace_rs::backtrace::libunwind::trace::hb059275cfc8d6126
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stdout]    1:     0x58806ed826aa - std::backtrace_rs::backtrace::trace_unsynchronized::h2da071e4327ce3ee
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x58806ed826aa - std::sys::backtrace::_print_fmt::h842a1474e6f8d23f
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x58806ed826aa - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h71a62eb3b9696b12
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x58806ed9fc13 - core::fmt::rt::Argument::fmt::hdb6b616786b41dc1
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/fmt/rt.rs:177:76
[INFO] [stdout]    5:     0x58806ed9fc13 - core::fmt::write::h2cc1698af7e2d686
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/fmt/mod.rs:1440:21
[INFO] [stdout]    6:     0x58806ed7fb53 - std::io::Write::write_fmt::h00c8700df393f328
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/io/mod.rs:1887:15
[INFO] [stdout]    7:     0x58806ed824f2 - std::sys::backtrace::BacktraceLock::print::h147fe35b4ea13b08
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    8:     0x58806ed8343f - std::panicking::default_hook::{{closure}}::hbd44223dbdc0d208
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:298:22
[INFO] [stdout]    9:     0x58806ed832aa - std::panicking::default_hook::h20f81eb0576efcec
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:325:9
[INFO] [stdout]   10:     0x58806ed83d12 - std::panicking::rust_panic_with_hook::h625eea43051b2edc
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:831:13
[INFO] [stdout]   11:     0x58806ed83baa - std::panicking::begin_panic_handler::{{closure}}::h4f9159cfbc3f6bd3
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:704:13
[INFO] [stdout]   12:     0x58806ed82ba9 - std::sys::backtrace::__rust_end_short_backtrace::h0390abce48353151
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   13:     0x58806ed8383d - rust_begin_unwind
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:695:5
[INFO] [stdout]   14:     0x58806ed9f080 - core::panicking::panic_fmt::h9e7c637e9e5f29c9
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panicking.rs:75:14
[INFO] [stdout]   15:     0x58806ed57045 - rust_quadratic_solver::utils::create_file::h6f84d23a96945d52
[INFO] [stdout]                                at /opt/rustwide/workdir/src/lib.rs:104:25
[INFO] [stdout]   16:     0x58806ed5598d - rust_out::main::_doctest_main_src_lib_rs_83_0::hea655b81556112c8
[INFO] [stdout]   17:     0x58806ed55956 - rust_out::main::he88f0b9b281d54e0
[INFO] [stdout]   18:     0x58806ed55353 - core::ops::function::FnOnce::call_once::hcf3829d8b58d0254
[INFO] [stdout]   19:     0x58806ed552c6 - std::sys::backtrace::__rust_begin_short_backtrace::h5e1527399e8d5bd4
[INFO] [stdout]   20:     0x58806ed551f9 - std::rt::lang_start::{{closure}}::h2c234101ed7b1b74
[INFO] [stdout]   21:     0x58806ed7db00 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h1b085b6c1d2518b2
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:284:13
[INFO] [stdout]   22:     0x58806ed7db00 - std::panicking::try::do_call::h382f964a5a23b565
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:587:40
[INFO] [stdout]   23:     0x58806ed7db00 - std::panicking::try::h57f991055eb622f9
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:550:19
[INFO] [stdout]   24:     0x58806ed7db00 - std::panic::catch_unwind::h4d9a74ef04456343
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panic.rs:358:14
[INFO] [stdout]   25:     0x58806ed7db00 - std::rt::lang_start_internal::{{closure}}::h2faa8ae84a93f314
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/rt.rs:163:24
[INFO] [stdout]   26:     0x58806ed7db00 - std::panicking::try::do_call::h0f8932bf638a9bf5
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:587:40
[INFO] [stdout]   27:     0x58806ed7db00 - std::panicking::try::h683416ea756b175d
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:550:19
[INFO] [stdout]   28:     0x58806ed7db00 - std::panic::catch_unwind::h56189fac8994979f
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panic.rs:358:14
[INFO] [stdout]   29:     0x58806ed7db00 - std::rt::lang_start_internal::h8bbc1061691274fe
[INFO] [stdout]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/rt.rs:159:5
[INFO] [stdout]   30:     0x58806ed551e1 - std::rt::lang_start::h601b10a269c70ef7
[INFO] [stdout]   31:     0x58806ed559b5 - main
[INFO] [stdout]   32:     0x7a60a371ad90 - <unknown>
[INFO] [stdout]   33:     0x7a60a371ae40 - __libc_start_main
[INFO] [stdout]   34:     0x58806ed54dd5 - _start
[INFO] [stdout]   35:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - utils::create_file (line 83)
[INFO] [stdout]     src/lib.rs - utils::write_results_to_file (line 163)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 2 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.73s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "cb204f6af2992d4b278b694508b844794b93eec8c1b25194e15930d5b5c506b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb204f6af2992d4b278b694508b844794b93eec8c1b25194e15930d5b5c506b0", kill_on_drop: false }`
[INFO] [stdout] cb204f6af2992d4b278b694508b844794b93eec8c1b25194e15930d5b5c506b0
