[INFO] cloning repository https://github.com/msathis/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/msathis/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsathis%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsathis%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0f2c210f36e83a8754181758ee1b32eaff2b7b3
[INFO] testing msathis/advent-of-code-2020 against master#414482f6a0d4e7290f614300581a0b55442552a3 for pr-140985
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsathis%2Fadvent-of-code-2020" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/msathis/advent-of-code-2020 on toolchain 414482f6a0d4e7290f614300581a0b55442552a3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/msathis/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/msathis/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/msathis/advent-of-code-2020 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/msathis/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" "+414482f6a0d4e7290f614300581a0b55442552a3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v0.3.1
[INFO] [stderr]   Downloaded parse-display-derive v0.4.0
[INFO] [stderr]   Downloaded parse-display v0.4.0
[INFO] [stderr]   Downloaded tokio v0.3.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c817ba3fc16799cbc067030d7a4b5cd125987002b0881a82ac3c307efd30248f
[INFO] running `Command { std: "docker" "start" "-a" "c817ba3fc16799cbc067030d7a4b5cd125987002b0881a82ac3c307efd30248f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c817ba3fc16799cbc067030d7a4b5cd125987002b0881a82ac3c307efd30248f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c817ba3fc16799cbc067030d7a4b5cd125987002b0881a82ac3c307efd30248f", kill_on_drop: false }`
[INFO] [stdout] c817ba3fc16799cbc067030d7a4b5cd125987002b0881a82ac3c307efd30248f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 087e62da8e04873fcad4624ed507e36f4f87cdc96ee420a1bc62a5cfb8a01abb
[INFO] running `Command { std: "docker" "start" "-a" "087e62da8e04873fcad4624ed507e36f4f87cdc96ee420a1bc62a5cfb8a01abb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.53
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling smallvec v1.5.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling lock_api v0.4.2
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling tokio v0.3.5
[INFO] [stderr]    Compiling bytes v0.6.0
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling futures-core v0.3.8
[INFO] [stderr]    Compiling pin-project-lite v0.2.0
[INFO] [stderr]    Compiling slab v0.4.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling parking_lot_core v0.8.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling mio v0.7.6
[INFO] [stderr]    Compiling signal-hook-registry v1.2.2
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling tokio-macros v0.3.1
[INFO] [stderr]    Compiling parse-display-derive v0.4.0
[INFO] [stderr]    Compiling async-trait v0.1.42
[INFO] [stderr]    Compiling parse-display v0.4.0
[INFO] [stderr]    Compiling advent-of-code-2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Display as PDisplay` and `FromStr as PFromStr`
[INFO] [stdout]  --> src/aoc/day3/mod.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use parse_display::{Display as PDisplay, FromStr as PFromStr};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cmp::min` and `error::Error`
[INFO] [stdout]  --> src/aoc/day3/mod.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{error::Error, cmp::min};
[INFO] [stdout]   |           ^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]  --> src/aoc/day1/mod.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub async fn part1() -> String {
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/aoc/day1/mod.rs:24:14
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub async fn part2() -> String {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]  --> src/aoc/day2/mod.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub async fn part1() -> String {
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/aoc/day2/mod.rs:30:14
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub async fn part2() -> String {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_password_rules` is never used
[INFO] [stdout]   --> src/aoc/day2/mod.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn parse_password_rules(input: Vec<String>) -> Result<Vec<PasswordRule>, impl Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]  --> src/aoc/day3/mod.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub async fn part1() -> String {
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/aoc/day3/mod.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub async fn part2() -> String {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_trees` is never used
[INFO] [stdout]   --> src/aoc/day3/mod.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn get_trees(data: &String, down: usize, right: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]    --> src/aoc/day4/mod.rs:174:14
[INFO] [stdout]     |
[INFO] [stdout] 174 | pub async fn part1() -> String {
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Solution` is never used
[INFO] [stdout]  --> src/aoc/utils.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait Solution {
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `read_as_string` are never used
[INFO] [stdout]   --> src/aoc/utils.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Input {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 16 |     pub fn new(path: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub async fn read_as_string(&self) -> String {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/aoc/utils.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         file.read_to_string(&mut buf).await;
[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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let _ = file.read_to_string(&mut buf).await;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/aoc/utils.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         file.read_to_string(&mut buf).await;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let _ = file.read_to_string(&mut buf).await;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 29.92s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: parse-display-derive v0.4.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "087e62da8e04873fcad4624ed507e36f4f87cdc96ee420a1bc62a5cfb8a01abb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "087e62da8e04873fcad4624ed507e36f4f87cdc96ee420a1bc62a5cfb8a01abb", kill_on_drop: false }`
[INFO] [stdout] 087e62da8e04873fcad4624ed507e36f4f87cdc96ee420a1bc62a5cfb8a01abb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f477129ac4db0d1f2ba2da1b27835f3c686641a40de14e01bd3cee31ad1cb1d
[INFO] running `Command { std: "docker" "start" "-a" "0f477129ac4db0d1f2ba2da1b27835f3c686641a40de14e01bd3cee31ad1cb1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling advent-of-code-2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Display as PDisplay` and `FromStr as PFromStr`
[INFO] [stdout]  --> src/aoc/day3/mod.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use parse_display::{Display as PDisplay, FromStr as PFromStr};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cmp::min` and `error::Error`
[INFO] [stdout]  --> src/aoc/day3/mod.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::{error::Error, cmp::min};
[INFO] [stdout]   |           ^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]  --> src/aoc/day1/mod.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub async fn part1() -> String {
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/aoc/day1/mod.rs:24:14
[INFO] [stdout]    |
[INFO] [stdout] 24 | pub async fn part2() -> String {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]  --> src/aoc/day2/mod.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub async fn part1() -> String {
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/aoc/day2/mod.rs:30:14
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub async fn part2() -> String {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_password_rules` is never used
[INFO] [stdout]   --> src/aoc/day2/mod.rs:50:4
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn parse_password_rules(input: Vec<String>) -> Result<Vec<PasswordRule>, impl Error> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]  --> src/aoc/day3/mod.rs:5:14
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub async fn part1() -> String {
[INFO] [stdout]   |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part2` is never used
[INFO] [stdout]   --> src/aoc/day3/mod.rs:14:14
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub async fn part2() -> String {
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `get_trees` is never used
[INFO] [stdout]   --> src/aoc/day3/mod.rs:29:4
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn get_trees(data: &String, down: usize, right: usize) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part1` is never used
[INFO] [stdout]    --> src/aoc/day4/mod.rs:174:14
[INFO] [stdout]     |
[INFO] [stdout] 174 | pub async fn part1() -> String {
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Solution` is never used
[INFO] [stdout]  --> src/aoc/utils.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub trait Solution {
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `read_as_string` are never used
[INFO] [stdout]   --> src/aoc/utils.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl Input {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 16 |     pub fn new(path: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     pub async fn read_as_string(&self) -> String {
[INFO] [stdout]    |                  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/aoc/utils.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         file.read_to_string(&mut buf).await;
[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] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let _ = file.read_to_string(&mut buf).await;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/aoc/utils.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         file.read_to_string(&mut buf).await;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 39 |         let _ = file.read_to_string(&mut buf).await;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: parse-display-derive v0.4.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "0f477129ac4db0d1f2ba2da1b27835f3c686641a40de14e01bd3cee31ad1cb1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f477129ac4db0d1f2ba2da1b27835f3c686641a40de14e01bd3cee31ad1cb1d", kill_on_drop: false }`
[INFO] [stdout] 0f477129ac4db0d1f2ba2da1b27835f3c686641a40de14e01bd3cee31ad1cb1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] db7cd7693239e342c01a2d4917351a04ed7d89975d71112c598fee1d065f790c
[INFO] running `Command { std: "docker" "start" "-a" "db7cd7693239e342c01a2d4917351a04ed7d89975d71112c598fee1d065f790c", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Display as PDisplay` and `FromStr as PFromStr`
[INFO] [stderr]  --> src/aoc/day3/mod.rs:2:21
[INFO] [stderr]   |
[INFO] [stderr] 2 | use parse_display::{Display as PDisplay, FromStr as PFromStr};
[INFO] [stderr]   |                     ^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `cmp::min` and `error::Error`
[INFO] [stderr]  --> src/aoc/day3/mod.rs:3:11
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::{error::Error, cmp::min};
[INFO] [stderr]   |           ^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `part1` is never used
[INFO] [stderr]  --> src/aoc/day1/mod.rs:4:14
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub async fn part1() -> String {
[INFO] [stderr]   |              ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `part2` is never used
[INFO] [stderr]   --> src/aoc/day1/mod.rs:24:14
[INFO] [stderr]    |
[INFO] [stderr] 24 | pub async fn part2() -> String {
[INFO] [stderr]    |              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `part1` is never used
[INFO] [stderr]  --> src/aoc/day2/mod.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub async fn part1() -> String {
[INFO] [stderr]   |              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `part2` is never used
[INFO] [stderr]   --> src/aoc/day2/mod.rs:30:14
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub async fn part2() -> String {
[INFO] [stderr]    |              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `parse_password_rules` is never used
[INFO] [stderr]   --> src/aoc/day2/mod.rs:50:4
[INFO] [stderr]    |
[INFO] [stderr] 50 | fn parse_password_rules(input: Vec<String>) -> Result<Vec<PasswordRule>, impl Error> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `part1` is never used
[INFO] [stderr]  --> src/aoc/day3/mod.rs:5:14
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub async fn part1() -> String {
[INFO] [stderr]   |              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `part2` is never used
[INFO] [stderr]   --> src/aoc/day3/mod.rs:14:14
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub async fn part2() -> String {
[INFO] [stderr]    |              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `get_trees` is never used
[INFO] [stderr]   --> src/aoc/day3/mod.rs:29:4
[INFO] [stderr]    |
[INFO] [stderr] 29 | fn get_trees(data: &String, down: usize, right: usize) -> usize {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function `part1` is never used
[INFO] [stderr]    --> src/aoc/day4/mod.rs:174:14
[INFO] [stderr]     |
[INFO] [stderr] 174 | pub async fn part1() -> String {
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `Solution` is never used
[INFO] [stderr]  --> src/aoc/utils.rs:6:11
[INFO] [stderr]   |
[INFO] [stderr] 6 | pub trait Solution {
[INFO] [stderr]   |           ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `read_as_string` are never used
[INFO] [stderr]   --> src/aoc/utils.rs:16:12
[INFO] [stderr]    |
[INFO] [stderr] 15 | impl Input {
[INFO] [stderr]    | ---------- associated items in this implementation
[INFO] [stderr] 16 |     pub fn new(path: String) -> Self {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] ...
[INFO] [stderr] 32 |     pub async fn read_as_string(&self) -> String {
[INFO] [stderr]    |                  ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/aoc/utils.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |         file.read_to_string(&mut buf).await;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let _ = file.read_to_string(&mut buf).await;
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/aoc/utils.rs:39:9
[INFO] [stderr]    |
[INFO] [stderr] 39 |         file.read_to_string(&mut buf).await;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 39 |         let _ = file.read_to_string(&mut buf).await;
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `advent-of-code-2020` (bin "advent-of-code-2020" test) generated 15 warnings (run `cargo fix --bin "advent-of-code-2020" --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: parse-display-derive v0.4.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/advent_of_code_2020-fe002b399ba028d3)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "db7cd7693239e342c01a2d4917351a04ed7d89975d71112c598fee1d065f790c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db7cd7693239e342c01a2d4917351a04ed7d89975d71112c598fee1d065f790c", kill_on_drop: false }`
[INFO] [stdout] db7cd7693239e342c01a2d4917351a04ed7d89975d71112c598fee1d065f790c