[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 master#f9988fefd3add01f414f52b414308e7872622fee for pr-155114
[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-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-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-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cfiet/rust-advent-of-code-2018 on toolchain f9988fefd3add01f414f52b414308e7872622fee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "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" "+f9988fefd3add01f414f52b414308e7872622fee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded itertools v0.8.0
[INFO] [stderr]   Downloaded memchr v2.1.2
[INFO] [stderr]   Downloaded regex v1.1.0
[INFO] [stderr]   Downloaded regex-syntax v0.6.4
[INFO] [stderr]   Downloaded libc v0.2.45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4459fb8f44d93c6292089768412d24e05477ac4043b738f44dc9de009b3e2d33
[INFO] running `Command { std: "docker" "start" "-a" "4459fb8f44d93c6292089768412d24e05477ac4043b738f44dc9de009b3e2d33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4459fb8f44d93c6292089768412d24e05477ac4043b738f44dc9de009b3e2d33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4459fb8f44d93c6292089768412d24e05477ac4043b738f44dc9de009b3e2d33", kill_on_drop: false }`
[INFO] [stdout] 4459fb8f44d93c6292089768412d24e05477ac4043b738f44dc9de009b3e2d33
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f144bd2ce0891a907967b8fac57f3ec4de7302cc085f33a568135cb08b87ddb8
[INFO] running `Command { std: "docker" "start" "-a" "f144bd2ce0891a907967b8fac57f3ec4de7302cc085f33a568135cb08b87ddb8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.45
[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 lazy_static v1.2.0
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[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)]` (part of `#[warn(unused)]`) 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 6.28s
[INFO] running `Command { std: "docker" "inspect" "f144bd2ce0891a907967b8fac57f3ec4de7302cc085f33a568135cb08b87ddb8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f144bd2ce0891a907967b8fac57f3ec4de7302cc085f33a568135cb08b87ddb8", kill_on_drop: false }`
[INFO] [stdout] f144bd2ce0891a907967b8fac57f3ec4de7302cc085f33a568135cb08b87ddb8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a70bb83e5f7dba46b25278c1ac579b0bebed979ae078d1761e26873569c4b0c
[INFO] running `Command { std: "docker" "start" "-a" "1a70bb83e5f7dba46b25278c1ac579b0bebed979ae078d1761e26873569c4b0c", 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)]` (part of `#[warn(unused)]`) 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 0.73s
[INFO] running `Command { std: "docker" "inspect" "1a70bb83e5f7dba46b25278c1ac579b0bebed979ae078d1761e26873569c4b0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a70bb83e5f7dba46b25278c1ac579b0bebed979ae078d1761e26873569c4b0c", kill_on_drop: false }`
[INFO] [stdout] 1a70bb83e5f7dba46b25278c1ac579b0bebed979ae078d1761e26873569c4b0c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f9988fefd3add01f414f52b414308e7872622fee" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b969e291ac12d797eeb8882f01e073ec762f95cdc99364d71ca83869c82757c1
[INFO] running `Command { std: "docker" "start" "-a" "b969e291ac12d797eeb8882f01e073ec762f95cdc99364d71ca83869c82757c1", 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_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]    |   |
[INFO] [stdout] test day5::test::test_reduce_polymer ... 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)]` (part of `#[warn(unused)]`) 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 0.04s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_advent_of_code_2018-f14777bf4fcb741b)
[INFO] [stderr] 
[INFO] [stderr] thread 'day9::test::test_solution_part2' (27) panicked at /rustc/f9988fefd3add01f414f52b414308e7872622fee/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:     0x5be8862f541a - std[1209cfb42f6d497f]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]    1:     0x5be8862f541a - std[1209cfb42f6d497f]::backtrace_rs::backtrace::trace_unsynchronized::<std[1209cfb42f6d497f]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]    2:     0x5be8862f541a - std[1209cfb42f6d497f]::sys::backtrace::_print_fmt
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]    3:     0x5be8862f541a - <<std[1209cfb42f6d497f]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[4a92201981c6b77a]::fmt::Display>::fmt
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]    4:     0x5be886309c9a - <core[4a92201981c6b77a]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]    5:     0x5be886309c9a - core[4a92201981c6b77a]::fmt::write
[INFO] [stderr]    6:     0x5be8862fa852 - std[1209cfb42f6d497f]::io::default_write_fmt::<std[1209cfb42f6d497f]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/io/mod.rs:621:11
[INFO] [stderr]    7:     0x5be8862fa852 - <std[1209cfb42f6d497f]::sys::stdio::unix::Stderr as std[1209cfb42f6d497f]::io::Write>::write_fmt
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/io/mod.rs:1976:13
[INFO] [stderr]    8:     0x5be8862d441f - <std[1209cfb42f6d497f]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]    9:     0x5be8862d441f - std[1209cfb42f6d497f]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/panicking.rs:292:27
[INFO] [stderr]   10:     0x5be8862ed841 - std[1209cfb42f6d497f]::panicking::default_hook
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/panicking.rs:319:9
[INFO] [stderr]   11:     0x5be88618314c - <alloc[420bb310a727dfd7]::boxed::Box<dyn for<'a, 'b> core[4a92201981c6b77a]::ops::function::Fn<(&'a std[1209cfb42f6d497f]::panic::PanicHookInfo<'b>,), Output = ()> + core[4a92201981c6b77a]::marker::Sync + core[4a92201981c6b77a]::marker::Send> as core[4a92201981c6b77a]::ops::function::Fn<(&std[1209cfb42f6d497f]::panic::PanicHookInfo,)>>::call
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/alloc/src/boxed.rs:2285:9
[INFO] [stderr]   12:     0x5be88618314c - test[59e67a9bc0e119f1]::test_main_inner::<test[59e67a9bc0e119f1]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/test/src/lib.rs:155:21
[INFO] [stderr]   13:     0x5be8862eda32 - <alloc[420bb310a727dfd7]::boxed::Box<dyn for<'a, 'b> core[4a92201981c6b77a]::ops::function::Fn<(&'a std[1209cfb42f6d497f]::panic::PanicHookInfo<'b>,), Output = ()> + core[4a92201981c6b77a]::marker::Sync + core[4a92201981c6b77a]::marker::Send> as core[4a92201981c6b77a]::ops::function::Fn<(&std[1209cfb42f6d497f]::panic::PanicHookInfo,)>>::call
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/alloc/src/boxed.rs:2285:9
[INFO] [stderr]   14:     0x5be8862eda32 - std[1209cfb42f6d497f]::panicking::panic_with_hook
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/panicking.rs:833:13
[INFO] [stderr]   15:     0x5be8862d450a - std[1209cfb42f6d497f]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/panicking.rs:691:13
[INFO] [stderr]   16:     0x5be8862c96b9 - std[1209cfb42f6d497f]::sys::backtrace::__rust_end_short_backtrace::<std[1209cfb42f6d497f]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]   17:     0x5be8862d51ed - __rustc[4effac393e9f3da6]::rust_begin_unwind
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/panicking.rs:689:5
[INFO] [stderr]   18:     0x5be88630a27d - core[4a92201981c6b77a]::panicking::panic_nounwind_fmt::runtime
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/core/src/panicking.rs:122:22
[INFO] [stderr]   19:     0x5be88630a27d - core[4a92201981c6b77a]::panicking::panic_nounwind_fmt
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/core/src/intrinsics/mod.rs:2450:9
[INFO] [stderr]   20:     0x5be88630a1fb - core[4a92201981c6b77a]::panicking::panic_nounwind
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/core/src/panicking.rs:225:5
[INFO] [stderr]   21:     0x5be886168a41 - core[4a92201981c6b77a]::mem::zeroed::<alloc[420bb310a727dfd7]::rc::Rc<core[4a92201981c6b77a]::cell::RefCell<rust_advent_of_code_2018[3504c299fd3dbbb6]::day9::Marble>>>
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/core/src/mem/mod.rs:713:9
[INFO] [stderr]   22:     0x5be886168a41 - <rust_advent_of_code_2018[3504c299fd3dbbb6]::day9::Marble>::new_circle
[INFO] [stderr]                                at /opt/rustwide/workdir/src/day9.rs:59:22
[INFO] [stderr]   23:     0x5be88616cf75 - rust_advent_of_code_2018[3504c299fd3dbbb6]::day9::solve_part2
[INFO] [stderr]                                at /opt/rustwide/workdir/src/day9.rs:180:28
[INFO] [stderr]   24:     0x5be886174306 - rust_advent_of_code_2018[3504c299fd3dbbb6]::day9::test::test_solution_part2
[INFO] [stderr]                                at /opt/rustwide/workdir/src/day9.rs:234:16
[INFO] [stderr]   25:     0x5be886172017 - rust_advent_of_code_2018[3504c299fd3dbbb6]::day9::test::test_solution_part2::{closure#0}
[INFO] [stderr]                                at /opt/rustwide/workdir/src/day9.rs:233:27
[INFO] [stderr]   26:     0x5be886176086 - <rust_advent_of_code_2018[3504c299fd3dbbb6]::day9::test::test_solution_part2::{closure#0} as core[4a92201981c6b77a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   27:     0x5be88617642b - <fn() -> core[4a92201981c6b77a]::result::Result<(), alloc[420bb310a727dfd7]::string::String> as core[4a92201981c6b77a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   28:     0x5be88617642b - test[59e67a9bc0e119f1]::__rust_begin_short_backtrace::<core[4a92201981c6b77a]::result::Result<(), alloc[420bb310a727dfd7]::string::String>, fn() -> core[4a92201981c6b77a]::result::Result<(), alloc[420bb310a727dfd7]::string::String>>
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/test/src/lib.rs:724:18
[INFO] [stderr]   29:     0x5be886183c1b - test[59e67a9bc0e119f1]::run_test_in_process::{closure#0}
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/test/src/lib.rs:747:74
[INFO] [stderr]   30:     0x5be886183c1b - <core[4a92201981c6b77a]::panic::unwind_safe::AssertUnwindSafe<test[59e67a9bc0e119f1]::run_test_in_process::{closure#0}> as core[4a92201981c6b77a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stderr]   31:     0x5be886183c1b - std[1209cfb42f6d497f]::panicking::catch_unwind::do_call::<core[4a92201981c6b77a]::panic::unwind_safe::AssertUnwindSafe<test[59e67a9bc0e119f1]::run_test_in_process::{closure#0}>, core[4a92201981c6b77a]::result::Result<(), alloc[420bb310a727dfd7]::string::String>>
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/panicking.rs:581:40
[INFO] [stderr]   32:     0x5be886183c1b - std[1209cfb42f6d497f]::panicking::catch_unwind::<core[4a92201981c6b77a]::result::Result<(), alloc[420bb310a727dfd7]::string::String>, core[4a92201981c6b77a]::panic::unwind_safe::AssertUnwindSafe<test[59e67a9bc0e119f1]::run_test_in_process::{closure#0}>>
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/panicking.rs:544:19
[INFO] [stderr]   33:     0x5be886183c1b - std[1209cfb42f6d497f]::panic::catch_unwind::<core[4a92201981c6b77a]::panic::unwind_safe::AssertUnwindSafe<test[59e67a9bc0e119f1]::run_test_in_process::{closure#0}>, core[4a92201981c6b77a]::result::Result<(), alloc[420bb310a727dfd7]::string::String>>
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/panic.rs:359:14
[INFO] [stderr]   34:     0x5be886183c1b - test[59e67a9bc0e119f1]::run_test_in_process
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/test/src/lib.rs:747:27
[INFO] [stderr]   35:     0x5be886183c1b - test[59e67a9bc0e119f1]::run_test::{closure#0}
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/test/src/lib.rs:668:43
[INFO] [stderr]   36:     0x5be88617d334 - test[59e67a9bc0e119f1]::run_test::{closure#1}
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/test/src/lib.rs:698:41
[INFO] [stderr]   37:     0x5be88617d334 - std[1209cfb42f6d497f]::sys::backtrace::__rust_begin_short_backtrace::<test[59e67a9bc0e119f1]::run_test::{closure#1}, ()>
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/sys/backtrace.rs:166:18
[INFO] [stderr]   38:     0x5be886186822 - std[1209cfb42f6d497f]::thread::lifecycle::spawn_unchecked::<test[59e67a9bc0e119f1]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stderr]   39:     0x5be886186822 - <core[4a92201981c6b77a]::panic::unwind_safe::AssertUnwindSafe<std[1209cfb42f6d497f]::thread::lifecycle::spawn_unchecked<test[59e67a9bc0e119f1]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[4a92201981c6b77a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stderr]   40:     0x5be886186822 - std[1209cfb42f6d497f]::panicking::catch_unwind::do_call::<core[4a92201981c6b77a]::panic::unwind_safe::AssertUnwindSafe<std[1209cfb42f6d497f]::thread::lifecycle::spawn_unchecked<test[59e67a9bc0e119f1]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/panicking.rs:581:40
[INFO] [stderr]   41:     0x5be886186822 - std[1209cfb42f6d497f]::panicking::catch_unwind::<(), core[4a92201981c6b77a]::panic::unwind_safe::AssertUnwindSafe<std[1209cfb42f6d497f]::thread::lifecycle::spawn_unchecked<test[59e67a9bc0e119f1]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/panicking.rs:544:19
[INFO] [stderr]   42:     0x5be886186822 - std[1209cfb42f6d497f]::panic::catch_unwind::<core[4a92201981c6b77a]::panic::unwind_safe::AssertUnwindSafe<std[1209cfb42f6d497f]::thread::lifecycle::spawn_unchecked<test[59e67a9bc0e119f1]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/panic.rs:359:14
[INFO] [stderr]   43:     0x5be886186822 - std[1209cfb42f6d497f]::thread::lifecycle::spawn_unchecked::<test[59e67a9bc0e119f1]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stderr]   44:     0x5be886186822 - <std[1209cfb42f6d497f]::thread::lifecycle::spawn_unchecked<test[59e67a9bc0e119f1]::run_test::{closure#1}, ()>::{closure#1} as core[4a92201981c6b77a]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   45:     0x5be8862f4d2f - <alloc[420bb310a727dfd7]::boxed::Box<dyn core[4a92201981c6b77a]::ops::function::FnOnce<(), Output = ()> + core[4a92201981c6b77a]::marker::Send> as core[4a92201981c6b77a]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/alloc/src/boxed.rs:2271:9
[INFO] [stderr]   46:     0x5be8862f4d2f - <std[1209cfb42f6d497f]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stderr]                                at /rustc/f9988fefd3add01f414f52b414308e7872622fee/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stderr]   47:     0x732d5df18aa4 - <unknown>
[INFO] [stderr]   48:     0x732d5dfa5a64 - 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-f14777bf4fcb741b` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "b969e291ac12d797eeb8882f01e073ec762f95cdc99364d71ca83869c82757c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b969e291ac12d797eeb8882f01e073ec762f95cdc99364d71ca83869c82757c1", kill_on_drop: false }`
[INFO] [stdout] b969e291ac12d797eeb8882f01e073ec762f95cdc99364d71ca83869c82757c1
