[INFO] cloning repository https://github.com/msathis/adventofcode
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/msathis/adventofcode" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsathis%2Fadventofcode"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsathis%2Fadventofcode'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9e0c22e1cd476c6db26f38c4a95af7bfdda4b7ec
[INFO] checking msathis/adventofcode against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsathis%2Fadventofcode" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/msathis/adventofcode on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/msathis/adventofcode
[INFO] finished tweaking git repo https://github.com/msathis/adventofcode
[INFO] tweaked toml for git repo https://github.com/msathis/adventofcode written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/msathis/adventofcode already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] a4f68175a7a5dc3029d98957ebc6e31ddd4fade4253bd65b07f90f41db822f23
[INFO] running `"docker" "start" "-a" "a4f68175a7a5dc3029d98957ebc6e31ddd4fade4253bd65b07f90f41db822f23"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking adventofcode v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `Stdin`
[INFO] [stderr]  --> src/day1.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Stdin, Read, stdin};
[INFO] [stderr]   |               ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Stdin`
[INFO] [stderr]  --> src/day2.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Stdin, Read, stdin};
[INFO] [stderr]   |               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Stdin`
[INFO] [stderr]  --> src/day3.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Stdin, Read, stdin};
[INFO] [stderr]   |               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::str::Chars`
[INFO] [stderr]  --> src/day3.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use core::str::Chars;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Stdin`
[INFO] [stderr]  --> src/day4.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Stdin, Read, stdin};
[INFO] [stderr]   |               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::str::Chars`
[INFO] [stderr]  --> src/day4.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use core::str::Chars;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Stdin`
[INFO] [stderr]  --> src/day1.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Stdin, Read, stdin};
[INFO] [stderr]   |               ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Stdin`
[INFO] [stderr]  --> src/day2.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Stdin, Read, stdin};
[INFO] [stderr]   |               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Stdin`
[INFO] [stderr]  --> src/day3.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Stdin, Read, stdin};
[INFO] [stderr]   |               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::str::Chars`
[INFO] [stderr]  --> src/day3.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use core::str::Chars;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Stdin`
[INFO] [stderr]  --> src/day4.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Stdin, Read, stdin};
[INFO] [stderr]   |               ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `core::str::Chars`
[INFO] [stderr]  --> src/day4.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use core::str::Chars;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `has_twos`
[INFO] [stderr]   --> src/day2.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let mut has_twos = false;
[INFO] [stderr]    |                 ^^^^^^^^ help: consider prefixing with an underscore: `_has_twos`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `has_threes`
[INFO] [stderr]   --> src/day2.rs:15:17
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let mut has_threes = false;
[INFO] [stderr]    |                 ^^^^^^^^^^ help: consider prefixing with an underscore: `_has_threes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `has_twos`
[INFO] [stderr]   --> src/day2.rs:14:17
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let mut has_twos = false;
[INFO] [stderr]    |                 ^^^^^^^^ help: consider prefixing with an underscore: `_has_twos`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `has_threes`
[INFO] [stderr]   --> src/day2.rs:15:17
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let mut has_threes = false;
[INFO] [stderr]    |                 ^^^^^^^^^^ help: consider prefixing with an underscore: `_has_threes`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `claims`
[INFO] [stderr]   --> src/day3.rs:58:19
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let (hashmap, claims) = get_map(&buffer, &re);
[INFO] [stderr]    |                   ^^^^^^ help: consider prefixing with an underscore: `_claims`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/day3.rs:61:10
[INFO] [stderr]    |
[INFO] [stderr] 61 |     for (key, val) in &hashmap {
[INFO] [stderr]    |          ^^^ help: consider prefixing with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `claims`
[INFO] [stderr]   --> src/day3.rs:58:19
[INFO] [stderr]    |
[INFO] [stderr] 58 |     let (hashmap, claims) = get_map(&buffer, &re);
[INFO] [stderr]    |                   ^^^^^^ help: consider prefixing with an underscore: `_claims`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/day3.rs:61:10
[INFO] [stderr]    |
[INFO] [stderr] 61 |     for (key, val) in &hashmap {
[INFO] [stderr]    |          ^^^ help: consider prefixing with an underscore: `_key`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/day4.rs:41:38
[INFO] [stderr]    |
[INFO] [stderr] 41 |     matrix_map.iter().filter(|&(&(g, v), _)| g == max_guard).for_each(|(&(g, v), val)| {
[INFO] [stderr]    |                                      ^ help: consider prefixing with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g`
[INFO] [stderr]   --> src/day4.rs:41:75
[INFO] [stderr]    |
[INFO] [stderr] 41 |     matrix_map.iter().filter(|&(&(g, v), _)| g == max_guard).for_each(|(&(g, v), val)| {
[INFO] [stderr]    |                                                                           ^ help: consider prefixing with an underscore: `_g`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `total_map`
[INFO] [stderr]   --> src/day4.rs:55:22
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let (matrix_map, total_map) = get_max_guard(&logs);
[INFO] [stderr]    |                      ^^^^^^^^^ help: consider prefixing with an underscore: `_total_map`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/day4.rs:41:38
[INFO] [stderr]    |
[INFO] [stderr] 41 |     matrix_map.iter().filter(|&(&(g, v), _)| g == max_guard).for_each(|(&(g, v), val)| {
[INFO] [stderr]    |                                      ^ help: consider prefixing with an underscore: `_v`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `g`
[INFO] [stderr]   --> src/day4.rs:41:75
[INFO] [stderr]    |
[INFO] [stderr] 41 |     matrix_map.iter().filter(|&(&(g, v), _)| g == max_guard).for_each(|(&(g, v), val)| {
[INFO] [stderr]    |                                                                           ^ help: consider prefixing with an underscore: `_g`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `total_map`
[INFO] [stderr]   --> src/day4.rs:55:22
[INFO] [stderr]    |
[INFO] [stderr] 55 |     let (matrix_map, total_map) = get_max_guard(&logs);
[INFO] [stderr]    |                      ^^^^^^^^^ help: consider prefixing with an underscore: `_total_map`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day2.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let mut has_twos = false;
[INFO] [stderr]    |             ----^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day2.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let mut has_threes = false;
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day2.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 |         let mut has_twos = false;
[INFO] [stderr]    |             ----^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/day2.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let mut has_threes = false;
[INFO] [stderr]    |             ----^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/day1.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/day1.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/day2.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/day2.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/day3.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/day3.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/day1.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/day1.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]  --> src/day2.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/day2.rs:40:5
[INFO] [stderr]    |
[INFO] [stderr] 40 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/day3.rs:56:5
[INFO] [stderr]    |
[INFO] [stderr] 56 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/day3.rs:73:5
[INFO] [stderr]    |
[INFO] [stderr] 73 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/day4.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/day4.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/day4.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/day4.rs:53:5
[INFO] [stderr]    |
[INFO] [stderr] 53 |     stdin().read_to_string(&mut buffer);
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `"docker" "inspect" "a4f68175a7a5dc3029d98957ebc6e31ddd4fade4253bd65b07f90f41db822f23"`
[INFO] running `"docker" "rm" "-f" "a4f68175a7a5dc3029d98957ebc6e31ddd4fade4253bd65b07f90f41db822f23"`
[INFO] [stdout] a4f68175a7a5dc3029d98957ebc6e31ddd4fade4253bd65b07f90f41db822f23