[INFO] updating cached repository https://github.com/alanbriolat/AdventOfCode2019
[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] 7a403e25d0c8f4cc338a51feeb1eee7f2865c62f
[INFO] checking alanbriolat/AdventOfCode2019 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falanbriolat%2FAdventOfCode2019" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alanbriolat/AdventOfCode2019 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/alanbriolat/AdventOfCode2019
[INFO] finished tweaking git repo https://github.com/alanbriolat/AdventOfCode2019
[INFO] tweaked toml for git repo https://github.com/alanbriolat/AdventOfCode2019 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/alanbriolat/AdventOfCode2019 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] 897ddb30837a6278205a4dd971b55fe9db4c46399e18d17027d794190716b313
[INFO] running `"docker" "start" "-a" "897ddb30837a6278205a4dd971b55fe9db4c46399e18d17027d794190716b313"`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling rayon-core v1.6.1
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking permutohedron v0.2.4
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling crossbeam-utils v0.7.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking num_cpus v1.11.1
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking crossbeam-queue v0.2.0
[INFO] [stderr]    Compiling memoffset v0.5.3
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking rand_os v0.2.2
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]     Checking rayon v1.2.1
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]     Checking advent_of_code_2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused label
[INFO] [stderr]   --> src/day02.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     'outer: for x in 0..=99 {
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]   --> src/day18.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use std::iter::FromIterator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `DerefMut`, `Deref`
[INFO] [stderr]   --> src/day18.rs:23:16
[INFO] [stderr]    |
[INFO] [stderr] 23 | use std::ops::{Deref, DerefMut};
[INFO] [stderr]    |                ^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `from_data_file`
[INFO] [stderr]   --> src/day18.rs:63:5
[INFO] [stderr]    |
[INFO] [stderr] 63 |     fn from_data_file(filename: &str) -> Map {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `QueueOnce`
[INFO] [stderr]   --> src/day18.rs:90:8
[INFO] [stderr]    |
[INFO] [stderr] 90 | struct QueueOnce<T: Copy + Eq + Hash> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/day18.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     fn new() -> QueueOnce<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push_back`
[INFO] [stderr]    --> src/day18.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     fn push_back(&mut self, x: T) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop_front`
[INFO] [stderr]    --> src/day18.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     fn pop_front(&mut self) -> Option<T> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_adjacent_nodes`
[INFO] [stderr]    --> src/day18.rs:154:5
[INFO] [stderr]     |
[INFO] [stderr] 154 |     fn get_adjacent_nodes(&self, n: Node, from: Node) -> HashSet<Node> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `topological_sort`
[INFO] [stderr]    --> src/day18.rs:162:5
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn topological_sort(&self) -> Vec<Node> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]    --> src/day18.rs:251:5
[INFO] [stderr]     |
[INFO] [stderr] 251 |     fn new(path_db: &'a PathDB) -> Reachable<'a> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]    --> src/day18.rs:258:5
[INFO] [stderr]     |
[INFO] [stderr] 258 |     fn get(&mut self, from: Node, to: Node) -> HashSet<Node> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_path`
[INFO] [stderr]    --> src/day18.rs:276:5
[INFO] [stderr]     |
[INFO] [stderr] 276 |     fn get_path(&mut self, from: Node, to: Node) -> Path {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `shortest_path`
[INFO] [stderr]    --> src/day18.rs:314:4
[INFO] [stderr]     |
[INFO] [stderr] 314 | fn shortest_path(filename: &str) -> usize {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]    Compiling serde_derive v1.0.103
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr] warning: unused label
[INFO] [stderr]   --> src/day02.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     'outer: for x in 0..=99 {
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_labels)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]   --> src/day18.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use std::iter::FromIterator;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `DerefMut`, `Deref`
[INFO] [stderr]   --> src/day18.rs:23:16
[INFO] [stderr]    |
[INFO] [stderr] 23 | use std::ops::{Deref, DerefMut};
[INFO] [stderr]    |                ^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/day18.rs:351:9
[INFO] [stderr]     |
[INFO] [stderr] 351 |         assert_eq!(part1(), unimplemented!());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^----------------^^
[INFO] [stderr]     |         |                   |
[INFO] [stderr]     |         |                   any code following this expression is unreachable
[INFO] [stderr]     |         unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` 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: unreachable expression
[INFO] [stderr]    --> src/day18.rs:356:9
[INFO] [stderr]     |
[INFO] [stderr] 356 |         assert_eq!(part2(), unimplemented!());
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^----------------^^
[INFO] [stderr]     |         |                   |
[INFO] [stderr]     |         |                   any code following this expression is unreachable
[INFO] [stderr]     |         unreachable expression
[INFO] [stderr]     |
[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: struct is never constructed: `QueueOnce`
[INFO] [stderr]   --> src/day18.rs:90:8
[INFO] [stderr]    |
[INFO] [stderr] 90 | struct QueueOnce<T: Copy + Eq + Hash> {
[INFO] [stderr]    |        ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/day18.rs:96:5
[INFO] [stderr]    |
[INFO] [stderr] 96 |     fn new() -> QueueOnce<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push_back`
[INFO] [stderr]    --> src/day18.rs:103:5
[INFO] [stderr]     |
[INFO] [stderr] 103 |     fn push_back(&mut self, x: T) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop_front`
[INFO] [stderr]    --> src/day18.rs:109:5
[INFO] [stderr]     |
[INFO] [stderr] 109 |     fn pop_front(&mut self) -> Option<T> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `topological_sort`
[INFO] [stderr]    --> src/day18.rs:162:5
[INFO] [stderr]     |
[INFO] [stderr] 162 |     fn topological_sort(&self) -> Vec<Node> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 03s
[INFO] running `"docker" "inspect" "897ddb30837a6278205a4dd971b55fe9db4c46399e18d17027d794190716b313"`
[INFO] running `"docker" "rm" "-f" "897ddb30837a6278205a4dd971b55fe9db4c46399e18d17027d794190716b313"`
[INFO] [stdout] 897ddb30837a6278205a4dd971b55fe9db4c46399e18d17027d794190716b313