[INFO] cloning repository https://github.com/cfiet/rust-advent-of-code-2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cfiet/rust-advent-of-code-2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfiet%2Frust-advent-of-code-2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfiet%2Frust-advent-of-code-2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 395b460f2409c48cf7fd4cfc82d8568624da24e8
[INFO] testing cfiet/rust-advent-of-code-2018 against nightly-2025-01-18+rustflags=-Zrandomize-layout for randomize-layout-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfiet%2Frust-advent-of-code-2018" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cfiet/rust-advent-of-code-2018 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/cfiet/rust-advent-of-code-2018
[INFO] finished tweaking git repo https://github.com/cfiet/rust-advent-of-code-2018
[INFO] tweaked toml for git repo https://github.com/cfiet/rust-advent-of-code-2018 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/cfiet/rust-advent-of-code-2018 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:819108c5571ea2e421544af4d832f968d213c87fbe3707a016657f43d2f853bc" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2025-01-18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 82338afdd4fd2854c6bdc356df8dbb977f78c73e35ef269ed5d0d4982d0fdbe0
[INFO] running `Command { std: "docker" "start" "-a" "82338afdd4fd2854c6bdc356df8dbb977f78c73e35ef269ed5d0d4982d0fdbe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "82338afdd4fd2854c6bdc356df8dbb977f78c73e35ef269ed5d0d4982d0fdbe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82338afdd4fd2854c6bdc356df8dbb977f78c73e35ef269ed5d0d4982d0fdbe0", kill_on_drop: false }`
[INFO] [stdout] 82338afdd4fd2854c6bdc356df8dbb977f78c73e35ef269ed5d0d4982d0fdbe0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Zrandomize-layout" "-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] 4c8b657ea5641a44581aa3363094b311911283e8ea90128cd83c5f082e850076
[INFO] running `Command { std: "docker" "start" "-a" "4c8b657ea5641a44581aa3363094b311911283e8ea90128cd83c5f082e850076", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling rust-advent-of-code-2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day3.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |   ParseLineError(String),
[INFO] [stdout]    |   -------------- ^^^^^^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClaimError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 |   ParseLineError(()),
[INFO] [stdout]    |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/day3.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 |   ParseFieldError(String, String)
[INFO] [stdout]    |   --------------- ^^^^^^  ^^^^^^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClaimError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 16 |   ParseFieldError((), ())
[INFO] [stdout]    |                   ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `Rc<RefCell<Marble>>` does not permit zero-initialization
[INFO] [stdout]   --> src/day9.rs:59:22
[INFO] [stdout]    |
[INFO] [stdout] 59 |       next: unsafe { std::mem::zeroed() },
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      this code causes undefined behavior when executed
[INFO] [stdout]    |                      help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: `std::rc::Rc<std::cell::RefCell<day9::Marble>>` must be non-null
[INFO] [stdout]    = note: because `std::ptr::NonNull<std::rc::RcInner<std::cell::RefCell<day9::Marble>>>` must be non-null
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `Rc<RefCell<Marble>>` does not permit zero-initialization
[INFO] [stdout]   --> src/day9.rs:60:22
[INFO] [stdout]    |
[INFO] [stdout] 60 |       prev: unsafe { std::mem::zeroed() }
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      this code causes undefined behavior when executed
[INFO] [stdout]    |                      help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: `std::rc::Rc<std::cell::RefCell<day9::Marble>>` must be non-null
[INFO] [stdout]    = note: because `std::ptr::NonNull<std::rc::RcInner<std::cell::RefCell<day9::Marble>>>` must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.50s
[INFO] running `Command { std: "docker" "inspect" "4c8b657ea5641a44581aa3363094b311911283e8ea90128cd83c5f082e850076", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c8b657ea5641a44581aa3363094b311911283e8ea90128cd83c5f082e850076", kill_on_drop: false }`
[INFO] [stdout] 4c8b657ea5641a44581aa3363094b311911283e8ea90128cd83c5f082e850076
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Zrandomize-layout" "-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] 42ea20fa7b8792baa5aaee0a52711e00819f92e5f9334fc8fd10836519201ea7
[INFO] running `Command { std: "docker" "start" "-a" "42ea20fa7b8792baa5aaee0a52711e00819f92e5f9334fc8fd10836519201ea7", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-advent-of-code-2018 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/day3.rs:15:18
[INFO] [stdout]    |
[INFO] [stdout] 15 |   ParseLineError(String),
[INFO] [stdout]    |   -------------- ^^^^^^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClaimError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 15 |   ParseLineError(()),
[INFO] [stdout]    |                  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]   --> src/day3.rs:16:19
[INFO] [stdout]    |
[INFO] [stdout] 16 |   ParseFieldError(String, String)
[INFO] [stdout]    |   --------------- ^^^^^^  ^^^^^^
[INFO] [stdout]    |   |
[INFO] [stdout]    |   fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ClaimError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]    |
[INFO] [stdout] 16 |   ParseFieldError((), ())
[INFO] [stdout]    |                   ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `Rc<RefCell<Marble>>` does not permit zero-initialization
[INFO] [stdout]   --> src/day9.rs:59:22
[INFO] [stdout]    |
[INFO] [stdout] 59 |       next: unsafe { std::mem::zeroed() },
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      this code causes undefined behavior when executed
[INFO] [stdout]    |                      help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: `std::rc::Rc<std::cell::RefCell<day9::Marble>>` must be non-null
[INFO] [stdout]    = note: because `std::ptr::NonNull<std::rc::RcInner<std::cell::RefCell<day9::Marble>>>` must be non-null
[INFO] [stdout]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the type `Rc<RefCell<Marble>>` does not permit zero-initialization
[INFO] [stdout]   --> src/day9.rs:60:22
[INFO] [stdout]    |
[INFO] [stdout] 60 |       prev: unsafe { std::mem::zeroed() }
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                      |
[INFO] [stdout]    |                      this code causes undefined behavior when executed
[INFO] [stdout]    |                      help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stdout]    |
[INFO] [stdout]    = note: `std::rc::Rc<std::cell::RefCell<day9::Marble>>` must be non-null
[INFO] [stdout]    = note: because `std::ptr::NonNull<std::rc::RcInner<std::cell::RefCell<day9::Marble>>>` must be non-null
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "42ea20fa7b8792baa5aaee0a52711e00819f92e5f9334fc8fd10836519201ea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42ea20fa7b8792baa5aaee0a52711e00819f92e5f9334fc8fd10836519201ea7", kill_on_drop: false }`
[INFO] [stdout] 42ea20fa7b8792baa5aaee0a52711e00819f92e5f9334fc8fd10836519201ea7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Zrandomize-layout" "-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] 60a04046a506b3a893524ebb5594a24940abbdb7f2d221b4877ae41ac1c1e70e
[INFO] running `Command { std: "docker" "start" "-a" "60a04046a506b3a893524ebb5594a24940abbdb7f2d221b4877ae41ac1c1e70e", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stderr]   --> src/day3.rs:15:18
[INFO] [stderr]    |
[INFO] [stderr] 15 |   ParseLineError(String),
[INFO] [stderr]    |   -------------- ^^^^^^
[INFO] [stderr]    |   |
[INFO] [stderr]    |   field in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ClaimError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]    |
[INFO] [stderr] 15 |   ParseLineError(()),
[INFO] [stderr]    |                  ~~
[INFO] [stderr] 
[INFO] [stderr] warning: fields `0` and `1` are never read
[INFO] [stderr]   --> src/day3.rs:16:19
[INFO] [stderr]    |
[INFO] [stderr] 16 |   ParseFieldError(String, String)
[INFO] [stderr]    |   --------------- ^^^^^^  ^^^^^^
[INFO] [stderr]    |   |
[INFO] [stderr]    |   fields in this variant
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ClaimError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stderr]    |
[INFO] [stderr] 16 |   ParseFieldError((), ())
[INFO] [stderr]    |                   ~~  ~~
[INFO] [stderr] 
[INFO] [stderr] warning: the type `Rc<RefCell<Marble>>` does not permit zero-initialization
[INFO] [stderr]   --> src/day9.rs:59:22
[INFO] [stderr]    |
[INFO] [stderr] 59 |       next: unsafe { std::mem::zeroed() },
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      this code causes undefined behavior when executed
[INFO] [stderr]    |                      help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr]    |
[INFO] [stderr]    = note: `std::rc::Rc<std::cell::RefCell<day9::Marble>>` must be non-null
[INFO] [stderr]    = note: because `std::ptr::NonNull<std::rc::RcInner<std::cell::RefCell<day9::Marble>>>` must be non-null
[INFO] [stderr]    = note: `#[warn(invalid_value)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the type `Rc<RefCell<Marble>>` does not permit zero-initialization
[INFO] [stderr]   --> src/day9.rs:60:22
[INFO] [stderr]    |
[INFO] [stderr] 60 |       prev: unsafe { std::mem::zeroed() }
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      this code causes undefined behavior when executed
[INFO] [stderr]    |                      help: use `MaybeUninit<T>` instead, and only call `assume_init` after initialization is done
[INFO] [stderr]    |
[INFO] [stderr]    = note: `std::rc::Rc<std::cell::RefCell<day9::Marble>>` must be non-null
[INFO] [stderr]    = note: because `std::ptr::NonNull<std::rc::RcInner<std::cell::RefCell<day9::Marble>>>` must be non-null
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-advent-of-code-2018` (bin "rust-advent-of-code-2018" test) generated 4 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_advent_of_code_2018-3afe0b7fd27b700c)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test day2::test::are_close_returns_false_when_strings_are_different_length ... ok
[INFO] [stderr] 
[INFO] [stdout] test day2::test::are_close_returns_false_if_strings_are_same ... ok
[INFO] [stderr] thread 'day9::test::test_solution_part2' panicked at library/core/src/panicking.rs:218:5:
[INFO] [stdout] test day2::test::are_close_returns_false_when_strings_have_more_then_one_different_character ... ok
[INFO] [stderr] attempted to zero-initialize type `alloc::rc::Rc<core::cell::RefCell<day9::Marble>>`, which is invalid
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x57cea686d15a - std::backtrace_rs::backtrace::libunwind::trace::hb059275cfc8d6126
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stderr]    1:     0x57cea686d15a - std::backtrace_rs::backtrace::trace_unsynchronized::h2da071e4327ce3ee
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x57cea686d15a - std::sys::backtrace::_print_fmt::h842a1474e6f8d23f
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]    3:     0x57cea686d15a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h71a62eb3b9696b12
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]    4:     0x57cea6894f83 - core::fmt::rt::Argument::fmt::hdb6b616786b41dc1
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/fmt/rt.rs:177:76
[INFO] [stderr]    5:     0x57cea6894f83 - core::fmt::write::h2cc1698af7e2d686
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/fmt/mod.rs:1440:21
[INFO] [stderr]    6:     0x57cea6869a53 - std::io::Write::write_fmt::h00c8700df393f328
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/io/mod.rs:1887:15
[INFO] [stderr]    7:     0x57cea686cfa2 - std::sys::backtrace::BacktraceLock::print::h147fe35b4ea13b08
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]    8:     0x57cea686e57f - std::panicking::default_hook::{{closure}}::hbd44223dbdc0d208
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:298:22
[INFO] [stderr]    9:     0x57cea686e3ea - std::panicking::default_hook::h20f81eb0576efcec
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:325:9
[INFO] [stderr]   10:     0x57cea672a363 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hdb53814c496a4d34
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2027:9
[INFO] [stderr]   11:     0x57cea672a363 - test::test_main::{{closure}}::hc0a4963c59427c24
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:134:21
[INFO] [stderr]   12:     0x57cea686f073 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h591b2225413a77e9
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2027:9
[INFO] [stderr]   13:     0x57cea686f073 - std::panicking::rust_panic_with_hook::h625eea43051b2edc
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:839:13
[INFO] [stderr]   14:     0x57cea686ecf6 - std::panicking::begin_panic_handler::{{closure}}::h4f9159cfbc3f6bd3
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:697:13
[INFO] [stderr]   15:     0x57cea686d659 - std::sys::backtrace::__rust_end_short_backtrace::h0390abce48353151
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]   16:     0x57cea686e9bd - rust_begin_unwind
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:695:5
[INFO] [stderr]   17:     0x57cea689399d - core::panicking::panic_nounwind_fmt::runtime::hff07b4bc76d03a4c
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panicking.rs:117:22
[INFO] [stderr]   18:     0x57cea689399d - core::panicking::panic_nounwind_fmt::hbd5e8c40c5ce07f6
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/intrinsics/mod.rs:3861:9
[INFO] [stderr]   19:     0x57cea6893a32 - core::panicking::panic_nounwind::h87bcbf062a0b0104
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panicking.rs:218:5
[INFO] [stderr]   20:     0x57cea66e4b71 - core::mem::zeroed::h72d6ad51b96dc2ce
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/mem/mod.rs:656:9
[INFO] [stderr]   21:     0x57cea66e4b71 - rust_advent_of_code_2018::day9::Marble::new_circle::hce740c41bd3325dd
[INFO] [stderr]                                at /opt/rustwide/workdir/src/day9.rs:59:22
[INFO] [stderr]   22:     0x57cea66e5a65 - rust_advent_of_code_2018::day9::solve_part2::he41dfe99582c7ee2
[INFO] [stderr]                                at /opt/rustwide/workdir/src/day9.rs:180:28
[INFO] [stderr]   23:     0x57cea66ed246 - rust_advent_of_code_2018::day9::test::test_solution_part2::h9e40e4dc68ec6e38
[INFO] [stderr]                                at /opt/rustwide/workdir/src/day9.rs:234:16
[INFO] [stderr]   24:     0x57cea66ed217 - rust_advent_of_code_2018::day9::test::test_solution_part2::{{closure}}::h0cc5b1831c6e7868
[INFO] [stderr]                                at /opt/rustwide/workdir/src/day9.rs:233:27
[INFO] [stderr]   25:     0x57cea66ea6c6 - core::ops::function::FnOnce::call_once::hfbcc7ee9b1e421e2
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   26:     0x57cea672fabb - core::ops::function::FnOnce::call_once::he27718dfdd183f43
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   27:     0x57cea672fabb - test::__rust_begin_short_backtrace::h4e84902998457a5d
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:632:18
[INFO] [stderr]   28:     0x57cea672e9f3 - test::run_test_in_process::{{closure}}::h7176fd18fc1feca0
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:655:60
[INFO] [stderr]   29:     0x57cea672e9f3 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf79cff2a624d8cf7
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   30:     0x57cea672e9f3 - std::panicking::try::do_call::h3da0561d9ab99c25
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:587:40
[INFO] [stderr]   31:     0x57cea672e9f3 - std::panicking::try::h41c9fa508bc61df6
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:550:19
[INFO] [stderr]   32:     0x57cea672e9f3 - std::panic::catch_unwind::h6b3ff07bb5afad93
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panic.rs:358:14
[INFO] [stderr]   33:     0x57cea672e9f3 - test::run_test_in_process::hc7253dd11b39b9f4
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:655:27
[INFO] [stderr]   34:     0x57cea672e9f3 - test::run_test::{{closure}}::hfb2007f8649c30bb
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:576:43
[INFO] [stderr]   35:     0x57cea66f1ad5 - test::run_test::{{closure}}::h56a17aa7a282a9f4
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/test/src/lib.rs:606:41
[INFO] [stderr]   36:     0x57cea66f1ad5 - std::sys::backtrace::__rust_begin_short_backtrace::hd2d2d2fb8e8c6aac
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/backtrace.rs:152:18
[INFO] [stderr]   37:     0x57cea66f53ba - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h4faa3f9db6133423
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/thread/mod.rs:559:17
[INFO] [stderr]   38:     0x57cea66f53ba - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hf2e855a36a4ea846
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   39:     0x57cea66f53ba - std::panicking::try::do_call::h2f73af3616c35465
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:587:40
[INFO] [stderr]   40:     0x57cea66f53ba - std::panicking::try::hd1660ce9efadef5a
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panicking.rs:550:19
[INFO] [stderr]   41:     0x57cea66f53ba - std::panic::catch_unwind::h5ee8d7823b8ca744
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/panic.rs:358:14
[INFO] [stderr]   42:     0x57cea66f53ba - std::thread::Builder::spawn_unchecked_::{{closure}}::h53c3a1894dce8407
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/thread/mod.rs:557:30
[INFO] [stderr]   43:     0x57cea66f53ba - core::ops::function::FnOnce::call_once{{vtable.shim}}::h048ce291ad4f62bf
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   44:     0x57cea6872fab - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::ha52bedf99a3b4981
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2013:9
[INFO] [stderr]   45:     0x57cea6872fab - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h567748934d80ccf8
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/alloc/src/boxed.rs:2013:9
[INFO] [stderr]   46:     0x57cea6872fab - std::sys::pal::unix::thread::Thread::new::thread_start::h2d970728ae887adc
[INFO] [stderr]                                at /rustc/6067b36314ab5eb2eb47cecc464545ba58e1ad24/library/std/src/sys/pal/unix/thread.rs:106:17
[INFO] [stderr]   47:     0x70c86038dac3 - <unknown>
[INFO] [stderr]   48:     0x70c86041ea04 - clone
[INFO] [stderr]   49:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stderr] error: test failed, to rerun pass `--bin rust-advent-of-code-2018`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/rust_advent_of_code_2018-3afe0b7fd27b700c` (signal: 6, SIGABRT: process abort signal)
[INFO] [stdout] test day2::test::are_close_returns_true_if_strings_have_no_more_then_one_different_character ... 
[INFO] running `Command { std: "docker" "inspect" "60a04046a506b3a893524ebb5594a24940abbdb7f2d221b4877ae41ac1c1e70e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60a04046a506b3a893524ebb5594a24940abbdb7f2d221b4877ae41ac1c1e70e", kill_on_drop: false }`
[INFO] [stdout] 60a04046a506b3a893524ebb5594a24940abbdb7f2d221b4877ae41ac1c1e70e
