[INFO] cloning repository https://github.com/kunalb/AoC2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kunalb/AoC2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkunalb%2FAoC2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkunalb%2FAoC2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6d4a8acf8355d22c1756d056a3be86c8b923905
[INFO] checking kunalb/AoC2020 against master#3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0 for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkunalb%2FAoC2020" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kunalb/AoC2020
[INFO] finished tweaking git repo https://github.com/kunalb/AoC2020
[INFO] tweaked toml for git repo https://github.com/kunalb/AoC2020 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kunalb/AoC2020 on toolchain 3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kunalb/AoC2020 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" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6c2716a938170bdc2ca93f040a87d3a0333ba952f35e8bfb16d7feec66116883
[INFO] running `Command { std: "docker" "start" "-a" "6c2716a938170bdc2ca93f040a87d3a0333ba952f35e8bfb16d7feec66116883", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c2716a938170bdc2ca93f040a87d3a0333ba952f35e8bfb16d7feec66116883", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c2716a938170bdc2ca93f040a87d3a0333ba952f35e8bfb16d7feec66116883", kill_on_drop: false }`
[INFO] [stdout] 6c2716a938170bdc2ca93f040a87d3a0333ba952f35e8bfb16d7feec66116883
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+3129d37ef7075ee3cbaa3d6cbe1b5794f67192b0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 355a9b4b7fb8d8bdc0f34704fbb9e75cc3328aea2537ad9300287a45d09354ca
[INFO] running `Command { std: "docker" "start" "-a" "355a9b4b7fb8d8bdc0f34704fbb9e75cc3328aea2537ad9300287a45d09354ca", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking aoc2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::*`
[INFO] [stdout]   --> src/main.rs:46:9
[INFO] [stdout]    |
[INFO] [stdout] 46 |     use super::*;
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/bin/day21.rs:54:19
[INFO] [stdout]    |
[INFO] [stdout] 54 |         .map(|(f, a)| f.iter().filter(|x| details.unused_foods.contains(**x)).count())
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day21.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     for mut possibility in details.possibilities.iter_mut() {
[INFO] [stdout]    |         ----^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `all_foods` is never read
[INFO] [stdout]   --> src/bin/day21.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct Details<'a> {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     all_foods: HashSet<&'a str>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/bin/day21.rs:15:28
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn extract_details(buffer: &str) -> Result<Details, Box<dyn Error>> {
[INFO] [stdout]    |                            ^^^^            ------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn extract_details(buffer: &str) -> Result<Details<'_>, Box<dyn Error>> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/day23.rs:70:10
[INFO] [stdout]    |
[INFO] [stdout] 70 |     for (i, &x) in input.iter().enumerate() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_debug` is never used
[INFO] [stdout]   --> src/bin/day23.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn print_debug(cups: &Vec<usize>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]   --> src/bin/day21.rs:54:19
[INFO] [stdout]    |
[INFO] [stdout] 54 |         .map(|(f, a)| f.iter().filter(|x| details.unused_foods.contains(**x)).count())
[INFO] [stdout]    |                   ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/day21.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     for mut possibility in details.possibilities.iter_mut() {
[INFO] [stdout]    |         ----^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `all_foods` is never read
[INFO] [stdout]   --> src/bin/day21.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | struct Details<'a> {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 11 |     all_foods: HashSet<&'a str>,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/bin/day21.rs:15:28
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn extract_details(buffer: &str) -> Result<Details, Box<dyn Error>> {
[INFO] [stdout]    |                            ^^^^            ------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                            |
[INFO] [stdout]    |                            this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn extract_details(buffer: &str) -> Result<Details<'_>, Box<dyn Error>> {
[INFO] [stdout]    |                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_cube` is never used
[INFO] [stdout]   --> src/bin/day17.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn print_cube(hypercube: &HashMap<Vec<i64>, bool>, ranges: &Vec<(i64, i64)>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/bin/day23.rs:70:10
[INFO] [stdout]    |
[INFO] [stdout] 70 |     for (i, &x) in input.iter().enumerate() {
[INFO] [stdout]    |          ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_debug` is never used
[INFO] [stdout]   --> src/bin/day23.rs:28:4
[INFO] [stdout]    |
[INFO] [stdout] 28 | fn print_debug(cups: &Vec<usize>) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/bin/day7.rs:10:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn parse(buffer: &str) -> Result<(Bags, Bags), Box<dyn Error>> {
[INFO] [stdout]    |                  ^^^^             ----  ---- the lifetimes get resolved as `'_`
[INFO] [stdout]    |                  |                |
[INFO] [stdout]    |                  |                the lifetimes get resolved as `'_`
[INFO] [stdout]    |                  this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn parse(buffer: &str) -> Result<(Bags<'_>, Bags<'_>), Box<dyn Error>> {
[INFO] [stdout]    |                                       ++++      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/bin/day7.rs:10:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn parse(buffer: &str) -> Result<(Bags, Bags), Box<dyn Error>> {
[INFO] [stdout]    |                  ^^^^             ----  ---- the lifetimes get resolved as `'_`
[INFO] [stdout]    |                  |                |
[INFO] [stdout]    |                  |                the lifetimes get resolved as `'_`
[INFO] [stdout]    |                  this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn parse(buffer: &str) -> Result<(Bags<'_>, Bags<'_>), Box<dyn Error>> {
[INFO] [stdout]    |                                       ++++      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_cube` is never used
[INFO] [stdout]   --> src/bin/day17.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn print_cube(hypercube: &HashMap<Vec<i64>, bool>, ranges: &Vec<(i64, i64)>) {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/bin/day20.rs:759:9
[INFO] [stdout]     |
[INFO] [stdout] 759 |         dbg!(solve2(INPUT));
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `dbg` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.72s
[INFO] running `Command { std: "docker" "inspect" "355a9b4b7fb8d8bdc0f34704fbb9e75cc3328aea2537ad9300287a45d09354ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "355a9b4b7fb8d8bdc0f34704fbb9e75cc3328aea2537ad9300287a45d09354ca", kill_on_drop: false }`
[INFO] [stdout] 355a9b4b7fb8d8bdc0f34704fbb9e75cc3328aea2537ad9300287a45d09354ca
