[INFO] cloning repository https://github.com/jeremyarde/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/jeremyarde/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremyarde%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremyarde%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5d74e260991c262d165f500c5420cc254d64f51b
[INFO] testing jeremyarde/advent-of-code-2020 against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeremyarde%2Fadvent-of-code-2020" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeremyarde/advent-of-code-2020 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jeremyarde/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/jeremyarde/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/jeremyarde/advent-of-code-2020 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/jeremyarde/advent-of-code-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50666249c5aab33bb246ca34395ea72a30f9804be1a74d6280ef93965d46f450
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "50666249c5aab33bb246ca34395ea72a30f9804be1a74d6280ef93965d46f450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50666249c5aab33bb246ca34395ea72a30f9804be1a74d6280ef93965d46f450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50666249c5aab33bb246ca34395ea72a30f9804be1a74d6280ef93965d46f450", kill_on_drop: false }`
[INFO] [stdout] 50666249c5aab33bb246ca34395ea72a30f9804be1a74d6280ef93965d46f450
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a70acaa0e5dd6b522c6ad4a9f499207d9fa34447e06f3319884be02f9feccf8b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "a70acaa0e5dd6b522c6ad4a9f499207d9fa34447e06f3319884be02f9feccf8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling advent_of_code_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `question_1`
[INFO] [stdout]  --> src/lib.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn question_1() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `question_2`
[INFO] [stdout]   --> src/lib.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn question_2() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_valid`
[INFO] [stdout]   --> src/lib.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn is_valid(pw: Password) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_password`
[INFO] [stdout]   --> src/lib.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn parse_password(x: &str) -> Password {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `question_3`
[INFO] [stdout]   --> src/lib.rs:95:4
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn question_3() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `question_4`
[INFO] [stdout]    --> src/lib.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn question_4() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `q4_is_valid`
[INFO] [stdout]    --> src/lib.rs:164:4
[INFO] [stdout]     |
[INFO] [stdout] 164 | fn q4_is_valid(passport: String, required_keys: &HashMap<&str, bool>) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `question_5`
[INFO] [stdout]    --> src/lib.rs:178:4
[INFO] [stdout]     |
[INFO] [stdout] 178 | fn question_5() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `modify_seat`
[INFO] [stdout]    --> src/lib.rs:191:4
[INFO] [stdout]     |
[INFO] [stdout] 191 | fn modify_seat(mut seat_range: SeatRange, keep_high: bool) -> SeatRange {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `evaluate_seat`
[INFO] [stdout]    --> src/lib.rs:202:4
[INFO] [stdout]     |
[INFO] [stdout] 202 | fn evaluate_seat(seat_id: &str) -> (i32, i32) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `question_6`
[INFO] [stdout]    --> src/lib.rs:219:4
[INFO] [stdout]     |
[INFO] [stdout] 219 | fn question_6() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`, `vec`
[INFO] [stdout]  --> src/main.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^  ^^^^^^^
[INFO] [stdout] 3 |     fs, vec,
[INFO] [stdout]   |         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut winning_deck: VecDeque<i32>;
[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: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `Command { std: "docker" "inspect" "a70acaa0e5dd6b522c6ad4a9f499207d9fa34447e06f3319884be02f9feccf8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a70acaa0e5dd6b522c6ad4a9f499207d9fa34447e06f3319884be02f9feccf8b", kill_on_drop: false }`
[INFO] [stdout] a70acaa0e5dd6b522c6ad4a9f499207d9fa34447e06f3319884be02f9feccf8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5a7698de3d48ff4fc0b0dae09b452bde7301d3b8d3d0130489fd1eb0bb707766
[INFO] running `Command { std: "docker" "start" "-a" "5a7698de3d48ff4fc0b0dae09b452bde7301d3b8d3d0130489fd1eb0bb707766", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling advent_of_code_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `question_1`
[INFO] [stdout]  --> src/lib.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn question_1() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `question_2`
[INFO] [stdout]   --> src/lib.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn question_2() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_valid`
[INFO] [stdout]   --> src/lib.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn is_valid(pw: Password) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_password`
[INFO] [stdout]   --> src/lib.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn parse_password(x: &str) -> Password {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `question_3`
[INFO] [stdout]   --> src/lib.rs:95:4
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn question_3() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `question_4`
[INFO] [stdout]    --> src/lib.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn question_4() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `q4_is_valid`
[INFO] [stdout]    --> src/lib.rs:164:4
[INFO] [stdout]     |
[INFO] [stdout] 164 | fn q4_is_valid(passport: String, required_keys: &HashMap<&str, bool>) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `question_5`
[INFO] [stdout]    --> src/lib.rs:178:4
[INFO] [stdout]     |
[INFO] [stdout] 178 | fn question_5() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `modify_seat`
[INFO] [stdout]    --> src/lib.rs:191:4
[INFO] [stdout]     |
[INFO] [stdout] 191 | fn modify_seat(mut seat_range: SeatRange, keep_high: bool) -> SeatRange {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `evaluate_seat`
[INFO] [stdout]    --> src/lib.rs:202:4
[INFO] [stdout]     |
[INFO] [stdout] 202 | fn evaluate_seat(seat_id: &str) -> (i32, i32) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `question_6`
[INFO] [stdout]    --> src/lib.rs:219:4
[INFO] [stdout]     |
[INFO] [stdout] 219 | fn question_6() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `HashMap`, `HashSet`, `vec`
[INFO] [stdout]  --> src/main.rs:2:19
[INFO] [stdout]   |
[INFO] [stdout] 2 |     collections::{HashMap, HashSet, VecDeque},
[INFO] [stdout]   |                   ^^^^^^^  ^^^^^^^
[INFO] [stdout] 3 |     fs, vec,
[INFO] [stdout]   |         ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut winning_deck: VecDeque<i32>;
[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: function is never used: `question_1`
[INFO] [stdout]  --> src/lib.rs:6:4
[INFO] [stdout]   |
[INFO] [stdout] 6 | fn question_1() {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `question_2`
[INFO] [stdout]   --> src/lib.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn question_2() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_valid`
[INFO] [stdout]   --> src/lib.rs:54:4
[INFO] [stdout]    |
[INFO] [stdout] 54 | fn is_valid(pw: Password) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `parse_password`
[INFO] [stdout]   --> src/lib.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn parse_password(x: &str) -> Password {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `question_3`
[INFO] [stdout]   --> src/lib.rs:95:4
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn question_3() {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `question_4`
[INFO] [stdout]    --> src/lib.rs:128:4
[INFO] [stdout]     |
[INFO] [stdout] 128 | fn question_4() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `q4_is_valid`
[INFO] [stdout]    --> src/lib.rs:164:4
[INFO] [stdout]     |
[INFO] [stdout] 164 | fn q4_is_valid(passport: String, required_keys: &HashMap<&str, bool>) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `question_5`
[INFO] [stdout]    --> src/lib.rs:178:4
[INFO] [stdout]     |
[INFO] [stdout] 178 | fn question_5() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `modify_seat`
[INFO] [stdout]    --> src/lib.rs:191:4
[INFO] [stdout]     |
[INFO] [stdout] 191 | fn modify_seat(mut seat_range: SeatRange, keep_high: bool) -> SeatRange {
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `evaluate_seat`
[INFO] [stdout]    --> src/lib.rs:202:4
[INFO] [stdout]     |
[INFO] [stdout] 202 | fn evaluate_seat(seat_id: &str) -> (i32, i32) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `question_6`
[INFO] [stdout]    --> src/lib.rs:219:4
[INFO] [stdout]     |
[INFO] [stdout] 219 | fn question_6() {
[INFO] [stdout]     |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "5a7698de3d48ff4fc0b0dae09b452bde7301d3b8d3d0130489fd1eb0bb707766", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a7698de3d48ff4fc0b0dae09b452bde7301d3b8d3d0130489fd1eb0bb707766", kill_on_drop: false }`
[INFO] [stdout] 5a7698de3d48ff4fc0b0dae09b452bde7301d3b8d3d0130489fd1eb0bb707766
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 24b144d4bd823be32bf0c9e5b2b990989cb4b6e616ffdc622b593bec174a55a0
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "24b144d4bd823be32bf0c9e5b2b990989cb4b6e616ffdc622b593bec174a55a0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr] warning: function is never used: `question_1`
[INFO] [stdout] running 0 tests
[INFO] [stderr]  --> src/lib.rs:6:4
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 6 | fn question_1() {
[INFO] [stdout] 
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]   |
[INFO] [stdout] running 0 tests
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] warning: function is never used: `question_2`
[INFO] [stdout] 
[INFO] [stderr]   --> src/lib.rs:43:4
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn question_2() {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_valid`
[INFO] [stderr]   --> src/lib.rs:54:4
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn is_valid(pw: Password) -> bool {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_password`
[INFO] [stderr]   --> src/lib.rs:62:4
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn parse_password(x: &str) -> Password {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `question_3`
[INFO] [stderr]   --> src/lib.rs:95:4
[INFO] [stderr]    |
[INFO] [stderr] 95 | fn question_3() {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `question_4`
[INFO] [stderr]    --> src/lib.rs:128:4
[INFO] [stderr]     |
[INFO] [stderr] 128 | fn question_4() {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `q4_is_valid`
[INFO] [stderr]    --> src/lib.rs:164:4
[INFO] [stderr]     |
[INFO] [stderr] 164 | fn q4_is_valid(passport: String, required_keys: &HashMap<&str, bool>) -> bool {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `question_5`
[INFO] [stderr]    --> src/lib.rs:178:4
[INFO] [stderr]     |
[INFO] [stderr] 178 | fn question_5() {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `modify_seat`
[INFO] [stderr]    --> src/lib.rs:191:4
[INFO] [stderr]     |
[INFO] [stderr] 191 | fn modify_seat(mut seat_range: SeatRange, keep_high: bool) -> SeatRange {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `evaluate_seat`
[INFO] [stderr]    --> src/lib.rs:202:4
[INFO] [stderr]     |
[INFO] [stderr] 202 | fn evaluate_seat(seat_id: &str) -> (i32, i32) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `question_6`
[INFO] [stderr]    --> src/lib.rs:219:4
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn question_6() {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `question_1`
[INFO] [stderr]  --> src/lib.rs:6:4
[INFO] [stderr]   |
[INFO] [stderr] 6 | fn question_1() {
[INFO] [stderr]   |    ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `question_2`
[INFO] [stderr]   --> src/lib.rs:43:4
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn question_2() {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `is_valid`
[INFO] [stderr]   --> src/lib.rs:54:4
[INFO] [stderr]    |
[INFO] [stderr] 54 | fn is_valid(pw: Password) -> bool {
[INFO] [stderr]    |    ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `parse_password`
[INFO] [stderr]   --> src/lib.rs:62:4
[INFO] [stderr]    |
[INFO] [stderr] 62 | fn parse_password(x: &str) -> Password {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `question_3`
[INFO] [stderr]   --> src/lib.rs:95:4
[INFO] [stderr]    |
[INFO] [stderr] 95 | fn question_3() {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `question_4`
[INFO] [stderr]    --> src/lib.rs:128:4
[INFO] [stderr]     |
[INFO] [stderr] 128 | fn question_4() {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `q4_is_valid`
[INFO] [stderr]    --> src/lib.rs:164:4
[INFO] [stderr]     |
[INFO] [stderr] 164 | fn q4_is_valid(passport: String, required_keys: &HashMap<&str, bool>) -> bool {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `question_5`
[INFO] [stderr]    --> src/lib.rs:178:4
[INFO] [stderr]     |
[INFO] [stderr] 178 | fn question_5() {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `modify_seat`
[INFO] [stderr]    --> src/lib.rs:191:4
[INFO] [stderr]     |
[INFO] [stderr] 191 | fn modify_seat(mut seat_range: SeatRange, keep_high: bool) -> SeatRange {
[INFO] [stderr]     |    ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `evaluate_seat`
[INFO] [stderr]    --> src/lib.rs:202:4
[INFO] [stderr]     |
[INFO] [stderr] 202 | fn evaluate_seat(seat_id: &str) -> (i32, i32) {
[INFO] [stderr]     |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `question_6`
[INFO] [stderr]    --> src/lib.rs:219:4
[INFO] [stderr]     |
[INFO] [stderr] 219 | fn question_6() {
[INFO] [stderr]     |    ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `HashMap`, `HashSet`, `vec`
[INFO] [stderr]  --> src/main.rs:2:19
[INFO] [stderr]   |
[INFO] [stderr] 2 |     collections::{HashMap, HashSet, VecDeque},
[INFO] [stderr]   |                   ^^^^^^^  ^^^^^^^
[INFO] [stderr] 3 |     fs, vec,
[INFO] [stderr]   |         ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:62:9
[INFO] [stderr]    |
[INFO] [stderr] 62 |     let mut winning_deck: VecDeque<i32>;
[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: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.80s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/advent_of_code_2020-c1eaba69a79080b5
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/advent_of_code_2020-0ca680b59b586a85
[INFO] [stderr]    Doc-tests advent_of_code_2020
[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" "24b144d4bd823be32bf0c9e5b2b990989cb4b6e616ffdc622b593bec174a55a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "24b144d4bd823be32bf0c9e5b2b990989cb4b6e616ffdc622b593bec174a55a0", kill_on_drop: false }`
[INFO] [stdout] 24b144d4bd823be32bf0c9e5b2b990989cb4b6e616ffdc622b593bec174a55a0