[INFO] cloning repository https://github.com/kczimm/advent-of-code-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kczimm/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkczimm%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkczimm%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 93f228e4796d0cd8a9e34911fd7c3b0dc2e380fa
[INFO] checking kczimm/advent-of-code-2020 against try#2b43d8e161cfe46fae25518efb124c3c1d0fa392 for pr-145604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkczimm%2Fadvent-of-code-2020" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kczimm/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/kczimm/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/kczimm/advent-of-code-2020 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kczimm/advent-of-code-2020 on toolchain 2b43d8e161cfe46fae25518efb124c3c1d0fa392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b43d8e161cfe46fae25518efb124c3c1d0fa392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kczimm/advent-of-code-2020 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" "+2b43d8e161cfe46fae25518efb124c3c1d0fa392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+2b43d8e161cfe46fae25518efb124c3c1d0fa392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd475be95cbbfe089c5715583e4b3c33e95d478764a3bd6ebbe78c3aabc8bbb3
[INFO] running `Command { std: "docker" "start" "-a" "cd475be95cbbfe089c5715583e4b3c33e95d478764a3bd6ebbe78c3aabc8bbb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd475be95cbbfe089c5715583e4b3c33e95d478764a3bd6ebbe78c3aabc8bbb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd475be95cbbfe089c5715583e4b3c33e95d478764a3bd6ebbe78c3aabc8bbb3", kill_on_drop: false }`
[INFO] [stdout] cd475be95cbbfe089c5715583e4b3c33e95d478764a3bd6ebbe78c3aabc8bbb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+2b43d8e161cfe46fae25518efb124c3c1d0fa392" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e66824d6d370bd674b174f88f1a0be443b18c3ba3c8df22dd818323026d620ab
[INFO] running `Command { std: "docker" "start" "-a" "e66824d6d370bd674b174f88f1a0be443b18c3ba3c8df22dd818323026d620ab", kill_on_drop: false }`
[INFO] [stderr]     Checking advent-of-code-2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `combos` is never used
[INFO] [stdout]    --> src/day10/main.rs:117:4
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn combos(n: usize) -> usize {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `combos` is never used
[INFO] [stdout]    --> src/day10/main.rs:117:4
[INFO] [stdout]     |
[INFO] [stdout] 117 | fn combos(n: usize) -> usize {
[INFO] [stdout]     |    ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `valid_tickets`
[INFO] [stdout]    --> src/day16/main.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let valid_tickets = self
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_valid_tickets`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_valid` is never used
[INFO] [stdout]   --> src/day16/main.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl Ticket {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 59 |     fn is_valid(&self, r: &Rule) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `part2` is never used
[INFO] [stdout]    --> src/day16/main.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout]  83 | impl<'a> Notes<'a> {
[INFO] [stdout]     | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 102 |     fn part2(&self) -> usize {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/day4/main.rs:193:31
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn from_batch(batch: &'a str) -> Vec<Passport> {
[INFO] [stdout]     |                               ^^             -------- the same lifetime is hidden here
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn from_batch(batch: &'a str) -> Vec<Passport<'a>> {
[INFO] [stdout]     |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `apply_v2` is never used
[INFO] [stdout]    --> src/day14/main.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout]  89 | impl<'a> BitMask<'a> {
[INFO] [stdout]     | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 114 |     fn apply_v2(&self, value: u64) -> Vec<u64> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/day4/main.rs:193:31
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn from_batch(batch: &'a str) -> Vec<Passport> {
[INFO] [stdout]     |                               ^^             -------- the same lifetime is hidden here
[INFO] [stdout]     |                               |
[INFO] [stdout]     |                               the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 193 |     pub fn from_batch(batch: &'a str) -> Vec<Passport<'a>> {
[INFO] [stdout]     |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Coordinate` is never used
[INFO] [stdout]   --> src/day17/main.rs:12:6
[INFO] [stdout]    |
[INFO] [stdout] 12 | type Coordinate = (isize, isize, isize);
[INFO] [stdout]    |      ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PocketDimension` is never constructed
[INFO] [stdout]   --> src/day17/main.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct PocketDimension {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `boot`, `active_cubes`, `cycle`, `num_active_neighbors`, and `get` are never used
[INFO] [stdout]   --> src/day17/main.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl PocketDimension {
[INFO] [stdout]    | -------------------- methods in this implementation
[INFO] [stdout] 20 |     pub fn boot(&mut self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn active_cubes(&self) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn cycle(&mut self) {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     fn num_active_neighbors(&self, coordinate: Coordinate) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     pub fn get(&self, coordinate: Coordinate) -> Cube {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BOOT_CYCLES` is never used
[INFO] [stdout]   --> src/day17/main.rs:88:7
[INFO] [stdout]    |
[INFO] [stdout] 88 | const BOOT_CYCLES: usize = 6;
[INFO] [stdout]    |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Cube` is never used
[INFO] [stdout]    --> src/day17/main.rs:109:6
[INFO] [stdout]     |
[INFO] [stdout] 109 | enum Cube {
[INFO] [stdout]     |      ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]    --> src/day17/main.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |         Cube::from(' ');
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 137 |         let _ = Cube::from(' ');
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from` is never used
[INFO] [stdout]   --> src/day5/main.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl Seat {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn from(line: &str) -> Self {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `valid_tickets`
[INFO] [stdout]    --> src/day16/main.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let valid_tickets = self
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_valid_tickets`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `is_valid` is never used
[INFO] [stdout]   --> src/day16/main.rs:59:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl Ticket {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] 59 |     fn is_valid(&self, r: &Rule) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `part2` is never used
[INFO] [stdout]    --> src/day16/main.rs:102:8
[INFO] [stdout]     |
[INFO] [stdout]  83 | impl<'a> Notes<'a> {
[INFO] [stdout]     | ------------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 102 |     fn part2(&self) -> usize {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "e66824d6d370bd674b174f88f1a0be443b18c3ba3c8df22dd818323026d620ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e66824d6d370bd674b174f88f1a0be443b18c3ba3c8df22dd818323026d620ab", kill_on_drop: false }`
[INFO] [stdout] e66824d6d370bd674b174f88f1a0be443b18c3ba3c8df22dd818323026d620ab