[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 1.90.0 for beta-1.91-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfiet%2Frust-advent-of-code-2018" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[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-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cfiet/rust-advent-of-code-2018 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cfg-if v0.1.6
[INFO] [stderr]   Downloaded lazy_static v1.2.0
[INFO] [stderr]   Downloaded aho-corasick v0.6.9
[INFO] [stderr]   Downloaded redox_syscall v0.1.43
[INFO] [stderr]   Downloaded itertools v0.8.0
[INFO] [stderr]   Downloaded regex v1.1.0
[INFO] [stderr]   Downloaded libc v0.2.45
[INFO] [stderr]   Downloaded regex-syntax v0.6.4
[INFO] [stderr]   Downloaded memchr v2.1.2
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ef60884221d6b0ccba87617de09684ee267d9ff804bc1a7943651f1c718bc672
[INFO] running `Command { std: "docker" "start" "-a" "ef60884221d6b0ccba87617de09684ee267d9ff804bc1a7943651f1c718bc672", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ef60884221d6b0ccba87617de09684ee267d9ff804bc1a7943651f1c718bc672", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef60884221d6b0ccba87617de09684ee267d9ff804bc1a7943651f1c718bc672", kill_on_drop: false }`
[INFO] [stdout] ef60884221d6b0ccba87617de09684ee267d9ff804bc1a7943651f1c718bc672
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f84744b3711e8abb41a30401c6a0ae346ab117cd34a10189bd4ac12ecf9782d
[INFO] running `Command { std: "docker" "start" "-a" "2f84744b3711e8abb41a30401c6a0ae346ab117cd34a10189bd4ac12ecf9782d", 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 num-integer v0.1.39
[INFO] [stderr]    Compiling cfg-if v0.1.6
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling itertools v0.8.0
[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(String),
[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(String, String)
[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 11.59s
[INFO] running `Command { std: "docker" "inspect" "2f84744b3711e8abb41a30401c6a0ae346ab117cd34a10189bd4ac12ecf9782d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f84744b3711e8abb41a30401c6a0ae346ab117cd34a10189bd4ac12ecf9782d", kill_on_drop: false }`
[INFO] [stdout] 2f84744b3711e8abb41a30401c6a0ae346ab117cd34a10189bd4ac12ecf9782d
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c47f9d79db40530172e621ef34c3a46e024a9e03554c5390d3927165dbcd20a
[INFO] running `Command { std: "docker" "start" "-a" "3c47f9d79db40530172e621ef34c3a46e024a9e03554c5390d3927165dbcd20a", 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(String),
[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(String, String)
[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 1.11s
[INFO] running `Command { std: "docker" "inspect" "3c47f9d79db40530172e621ef34c3a46e024a9e03554c5390d3927165dbcd20a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c47f9d79db40530172e621ef34c3a46e024a9e03554c5390d3927165dbcd20a", kill_on_drop: false }`
[INFO] [stdout] 3c47f9d79db40530172e621ef34c3a46e024a9e03554c5390d3927165dbcd20a
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dd68a3da84d35a6cd155525b5a1d0b7ec4805a5a420cd816964df28d88333a6f
[INFO] running `Command { std: "docker" "start" "-a" "dd68a3da84d35a6cd155525b5a1d0b7ec4805a5a420cd816964df28d88333a6f", kill_on_drop: false }`
[INFO] [stderr] warning: field `0` is never read
[INFO] [stdout] 
[INFO] [stderr]   --> src/day3.rs:15:18
[INFO] [stdout] running 10 tests
[INFO] [stderr]    |
[INFO] [stdout] test day2::test::are_close_returns_false_if_strings_are_same ... ok
[INFO] [stderr] 15 |   ParseLineError(String),
[INFO] [stdout] test day2::test::are_close_returns_true_if_strings_have_no_more_then_one_different_character ... ok
[INFO] [stderr]    |   -------------- ^^^^^^
[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_when_strings_have_more_then_one_different_character ... ok
[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(String),
[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(String, String)
[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 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_advent_of_code_2018-d847e7ee66371e46)
[INFO] [stderr] 
[INFO] [stderr] thread 'day9::test::test_solution_part2' panicked at library/core/src/panicking.rs:225:5:
[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:     0x5db58de99532 - std::backtrace_rs::backtrace::libunwind::trace::h2d45396358f41939
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]    1:     0x5db58de99532 - std::backtrace_rs::backtrace::trace_unsynchronized::hffcefc0b67f1d6e2
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]    2:     0x5db58de99532 - std::sys::backtrace::_print_fmt::hd72f71d23b436b92
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]    3:     0x5db58de99532 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hdcfcb6d4c8489523
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]    4:     0x5db58debf193 - core::fmt::rt::Argument::fmt::h2c56b3114963061a
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]    5:     0x5db58debf193 - core::fmt::write::h8a494366950f23bb
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/fmt/mod.rs:1468:25
[INFO] [stderr]    6:     0x5db58de965e3 - std::io::default_write_fmt::ha27fbccbc65eb6fa
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:639:11
[INFO] [stderr]    7:     0x5db58de965e3 - std::io::Write::write_fmt::h6556609fca33d0b1
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]    8:     0x5db58de99382 - std::sys::backtrace::BacktraceLock::print::hb2a626a81e06b2dc
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]    9:     0x5db58de9aab9 - std::panicking::default_hook::{{closure}}::h4f78485264f12d10
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:300:27
[INFO] [stderr]   10:     0x5db58de9a89b - std::panicking::default_hook::h2c66fc99e962531d
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:327:9
[INFO] [stderr]   11:     0x5db58dd51814 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb6bd65493727d71a
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1985:9
[INFO] [stderr]   12:     0x5db58dd51814 - test::test_main_with_exit_callback::{{closure}}::h60217ec76a0ece4a
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:145:21
[INFO] [stderr]   13:     0x5db58de9b58e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h318e4efb8c1a5689
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1985:9
[INFO] [stderr]   14:     0x5db58de9b58e - std::panicking::rust_panic_with_hook::h33ac55f64bbd807d
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:841:13
[INFO] [stderr]   15:     0x5db58de9b226 - std::panicking::begin_panic_handler::{{closure}}::h30e7cb89678a57fe
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:699:13
[INFO] [stderr]   16:     0x5db58de99a39 - std::sys::backtrace::__rust_end_short_backtrace::hed60f27456c16ced
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]   17:     0x5db58de9aeed - __rustc[de2ca18b4c54d5b8]::rust_begin_unwind
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:697:5
[INFO] [stderr]   18:     0x5db58debdc1d - core::panicking::panic_nounwind_fmt::runtime::hde3dd742c40069fa
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:117:22
[INFO] [stderr]   19:     0x5db58debdc1d - core::panicking::panic_nounwind_fmt::h6c46f1098922b4b6
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/intrinsics/mod.rs:2367:9
[INFO] [stderr]   20:     0x5db58debdcb2 - core::panicking::panic_nounwind::he501508d405a4565
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panicking.rs:225:5
[INFO] [stderr]   21:     0x5db58dd0c781 - core::mem::zeroed::h271a30ae04c66edc
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/mem/mod.rs:674:9
[INFO] [stderr]   22:     0x5db58dd0c781 - rust_advent_of_code_2018::day9::Marble::new_circle::h2536947d04cd190e
[INFO] [stderr]                                at /opt/rustwide/workdir/src/day9.rs:59:22
[INFO] [stderr]   23:     0x5db58dd0d6a5 - rust_advent_of_code_2018::day9::solve_part2::h284ab1039d6a0e7a
[INFO] [stderr]                                at /opt/rustwide/workdir/src/day9.rs:180:28
[INFO] [stderr]   24:     0x5db58dd112e6 - rust_advent_of_code_2018::day9::test::test_solution_part2::h7cbdb96130eb8a30
[INFO] [stderr]                                at /opt/rustwide/workdir/src/day9.rs:234:16
[INFO] [stderr]   25:     0x5db58dd112b7 - rust_advent_of_code_2018::day9::test::test_solution_part2::{{closure}}::h514914688ab5ff47
[INFO] [stderr]                                at /opt/rustwide/workdir/src/day9.rs:233:27
[INFO] [stderr]   26:     0x5db58dd14ea6 - core::ops::function::FnOnce::call_once::hd7357bd65fdba827
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stderr]   27:     0x5db58dd5707b - core::ops::function::FnOnce::call_once::h1f9474f1347fff52
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stderr]   28:     0x5db58dd5707b - test::__rust_begin_short_backtrace::ha52ab26e77157f03
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:648:18
[INFO] [stderr]   29:     0x5db58dd561b5 - test::run_test_in_process::{{closure}}::h229c1a11a50b261f
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:671:74
[INFO] [stderr]   30:     0x5db58dd561b5 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h78821afbf97b39a9
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   31:     0x5db58dd561b5 - std::panicking::catch_unwind::do_call::h53abf3ed5bd32ba3
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stderr]   32:     0x5db58dd561b5 - std::panicking::catch_unwind::h6deb5fe1e91873c9
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stderr]   33:     0x5db58dd561b5 - std::panic::catch_unwind::hea0829b6b565654b
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stderr]   34:     0x5db58dd561b5 - test::run_test_in_process::hdc44dfecea3db21b
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:671:27
[INFO] [stderr]   35:     0x5db58dd561b5 - test::run_test::{{closure}}::h0364ba59bf23f652
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:592:43
[INFO] [stderr]   36:     0x5db58dd19db4 - test::run_test::{{closure}}::h32730b304eec05da
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/test/src/lib.rs:622:41
[INFO] [stderr]   37:     0x5db58dd19db4 - std::sys::backtrace::__rust_begin_short_backtrace::h177cb952fc54ad2c
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/backtrace.rs:158:18
[INFO] [stderr]   38:     0x5db58dd1d78a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h119d903520007597
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/thread/mod.rs:559:17
[INFO] [stderr]   39:     0x5db58dd1d78a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hab88401d606702a6
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   40:     0x5db58dd1d78a - std::panicking::catch_unwind::do_call::h163fe12cca9901c2
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:589:40
[INFO] [stderr]   41:     0x5db58dd1d78a - std::panicking::catch_unwind::he81557d0e17cc1bc
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panicking.rs:552:19
[INFO] [stderr]   42:     0x5db58dd1d78a - std::panic::catch_unwind::hc2b8e79c20593955
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/panic.rs:359:14
[INFO] [stderr]   43:     0x5db58dd1d78a - std::thread::Builder::spawn_unchecked_::{{closure}}::hfa6b4978e07815cc
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/thread/mod.rs:557:30
[INFO] [stderr]   44:     0x5db58dd1d78a - core::ops::function::FnOnce::call_once{{vtable.shim}}::hddcd7484a13fd793
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/core/src/ops/function.rs:253:5
[INFO] [stderr]   45:     0x5db58de9e50f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5924238c754de3b8
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/alloc/src/boxed.rs:1971:9
[INFO] [stderr]   46:     0x5db58de9e50f - std::sys::pal::unix::thread::Thread::new::thread_start::hb6e99e73da4d28f8
[INFO] [stderr]                                at /rustc/1159e78c4747b02ef996e55082b704c09b970588/library/std/src/sys/pal/unix/thread.rs:107:17
[INFO] [stderr]   47:     0x71e1ea8a8aa4 - <unknown>
[INFO] [stderr]   48:     0x71e1ea935a34 - 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-d847e7ee66371e46` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "dd68a3da84d35a6cd155525b5a1d0b7ec4805a5a420cd816964df28d88333a6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd68a3da84d35a6cd155525b5a1d0b7ec4805a5a420cd816964df28d88333a6f", kill_on_drop: false }`
[INFO] [stdout] dd68a3da84d35a6cd155525b5a1d0b7ec4805a5a420cd816964df28d88333a6f
