[INFO] updating cached repository https://github.com/nrxus/advent_2018
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0f7b9bc6e61ad765717d77e17cb205c55563b07c
[INFO] checking nrxus/advent_2018 against master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnrxus%2Fadvent_2018" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nrxus/advent_2018 on toolchain bd0bacc694d7d8175804bb6f690cb846bfa4a9ee
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nrxus/advent_2018
[INFO] finished tweaking git repo https://github.com/nrxus/advent_2018
[INFO] tweaked toml for git repo https://github.com/nrxus/advent_2018 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/nrxus/advent_2018 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9befeaba3380d9b78fc5a0596fa0d8a4c1fc573d07e8e5f26d1d143f49679f78
[INFO] running `"docker" "start" "-a" "9befeaba3380d9b78fc5a0596fa0d8a4c1fc573d07e8e5f26d1d143f49679f78"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
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[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/fifteen_a.rs:180:53
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn neighbors(&self, position: usize) -> [Option<(usize)>; 4] {
[INFO] [stderr]     |                                                     ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/twenty_three_b.rs:261:9
[INFO] [stderr]     |
[INFO] [stderr] 261 | /         array![|i| Region {
[INFO] [stderr] 262 | |             bounds: boxes[i],
[INFO] [stderr] 263 | |             nanobots: self.nanobots.iter().filter(|n| n.intersects(&boxes[i])).cloned().collect()
[INFO] [stderr] 264 | |         }; 8]
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/fifteen_a.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(bind_by_move_pattern_guards)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/fifteen_b.rs:193:53
[INFO] [stderr]     |
[INFO] [stderr] 193 |     fn neighbors(&self, position: usize) -> [Option<(usize)>; 4] {
[INFO] [stderr]     |                                                     ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cart_product`
[INFO] [stderr]   --> src/extensions.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn cart_product<A: Copy, B: Copy>(
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/fifteen_b.rs:193:53
[INFO] [stderr]     |
[INFO] [stderr] 193 |     fn neighbors(&self, position: usize) -> [Option<(usize)>; 4] {
[INFO] [stderr]     |                                                     ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ten_b.rs:25:20
[INFO] [stderr]    |
[INFO] [stderr] 25 |     type Err = Box<std::error::Error>;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/fifteen_b.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(bind_by_move_pattern_guards)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/fifteen_b.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(bind_by_move_pattern_guards)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/twenty_five.rs:40:32
[INFO] [stderr]    |
[INFO] [stderr] 40 |     type Err = std::boxed::Box<std::error::Error>;
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/twenty_five.rs:40:32
[INFO] [stderr]    |
[INFO] [stderr] 40 |     type Err = std::boxed::Box<std::error::Error>;
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/fifteen_a.rs:180:53
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn neighbors(&self, position: usize) -> [Option<(usize)>; 4] {
[INFO] [stderr]     |                                                     ^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `bind_by_move_pattern_guards` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/fifteen_a.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(bind_by_move_pattern_guards)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/fourteen_a.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Answer(array![|x| scores[x]; 10])
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]    --> src/twenty_three_b.rs:261:9
[INFO] [stderr]     |
[INFO] [stderr] 261 | /         array![|i| Region {
[INFO] [stderr] 262 | |             bounds: boxes[i],
[INFO] [stderr] 263 | |             nanobots: self.nanobots.iter().filter(|n| n.intersects(&boxes[i])).cloned().collect()
[INFO] [stderr] 264 | |         }; 8]
[INFO] [stderr]     | |_____________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ten_a.rs:47:20
[INFO] [stderr]    |
[INFO] [stderr] 47 |     type Err = Box<std::error::Error>;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ten_b.rs:25:20
[INFO] [stderr]    |
[INFO] [stderr] 25 |     type Err = Box<std::error::Error>;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `cart_product`
[INFO] [stderr]   --> src/extensions.rs:17:8
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub fn cart_product<A: Copy, B: Copy>(
[INFO] [stderr]    |        ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::mem::uninitialized': use `mem::MaybeUninit` instead
[INFO] [stderr]   --> src/fourteen_a.rs:22:12
[INFO] [stderr]    |
[INFO] [stderr] 22 |     Answer(array![|x| scores[x]; 10])
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ten_a.rs:47:20
[INFO] [stderr]    |
[INFO] [stderr] 47 |     type Err = Box<std::error::Error>;
[INFO] [stderr]    |                    ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 01s
[INFO] running `"docker" "inspect" "9befeaba3380d9b78fc5a0596fa0d8a4c1fc573d07e8e5f26d1d143f49679f78"`
[INFO] running `"docker" "rm" "-f" "9befeaba3380d9b78fc5a0596fa0d8a4c1fc573d07e8e5f26d1d143f49679f78"`
[INFO] [stdout] 9befeaba3380d9b78fc5a0596fa0d8a4c1fc573d07e8e5f26d1d143f49679f78