[INFO] cloning repository https://github.com/crockeo/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/crockeo/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrockeo%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrockeo%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ecb30268cfc945d66f6a9c65914ad41c5fa28572
[INFO] testing crockeo/advent-of-code-2020 against 1.54.0 for beta-1.55-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrockeo%2Fadvent-of-code-2020" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/crockeo/advent-of-code-2020 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/crockeo/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/crockeo/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/crockeo/advent-of-code-2020 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/crockeo/advent-of-code-2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd3f93773b3dfb1d42de8956d4e6b453ee4ab54db223f462d86cf3e4a7b1337e
[INFO] running `Command { std: "docker" "start" "-a" "fd3f93773b3dfb1d42de8956d4e6b453ee4ab54db223f462d86cf3e4a7b1337e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd3f93773b3dfb1d42de8956d4e6b453ee4ab54db223f462d86cf3e4a7b1337e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd3f93773b3dfb1d42de8956d4e6b453ee4ab54db223f462d86cf3e4a7b1337e", kill_on_drop: false }`
[INFO] [stdout] fd3f93773b3dfb1d42de8956d4e6b453ee4ab54db223f462d86cf3e4a7b1337e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 830173871f851a435e6034574120e4e3eaea6dcac08d8c2068a46b6a4cc2aeda
[INFO] running `Command { std: "docker" "start" "-a" "830173871f851a435e6034574120e4e3eaea6dcac08d8c2068a46b6a4cc2aeda", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling advent-of-code-2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> src/problem_01.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `lazy_static::lazy_static`
[INFO] [stdout]  --> src/problem_07.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use lazy_static::lazy_static;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]  --> src/problem_07.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use regex::Regex;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/problem_07.rs:75:57
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn load_expansion_rules<'a, I: Iterator<Item = String>>(i: I) -> Option<ExpansionRules<'a>> {
[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: unused variable: `s`
[INFO] [stdout]   --> src/problem_07.rs:79:28
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn load_expansion_rule<'a>(s: &'a str) -> Option<(&'a str, HashMap<&'a str, i64>)> {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expansion_rules`
[INFO] [stdout]   --> src/problem_07.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let expansion_rules = load_expansion_rules(
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expansion_rules`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/problem_16.rs:82:17
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `can_contain_target`
[INFO] [stdout]   --> src/problem_07.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn can_contain_target<'a>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `load_expansion_rule`
[INFO] [stdout]   --> src/problem_07.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn load_expansion_rule<'a>(s: &'a str) -> Option<(&'a str, HashMap<&'a str, i64>)> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `min`
[INFO] [stdout]   --> src/problem_16.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     min: i64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max`
[INFO] [stdout]   --> src/problem_16.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     max: i64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/problem_16.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new(min: i64, max: i64) -> Range {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `contains`
[INFO] [stdout]   --> src/problem_16.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn contains(&self, value: i64) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/problem_16.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn new(ranges: Vec<Range>) -> DisjunctRange {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `contains`
[INFO] [stdout]   --> src/problem_16.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn contains(&self, value: i64) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `are_any_valid`
[INFO] [stdout]   --> src/problem_16.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn are_any_valid(&self, t: &Ticket) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.60s
[INFO] running `Command { std: "docker" "inspect" "830173871f851a435e6034574120e4e3eaea6dcac08d8c2068a46b6a4cc2aeda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "830173871f851a435e6034574120e4e3eaea6dcac08d8c2068a46b6a4cc2aeda", kill_on_drop: false }`
[INFO] [stdout] 830173871f851a435e6034574120e4e3eaea6dcac08d8c2068a46b6a4cc2aeda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] febc1c81ac0db659cb5b2fa8d0a1722084290b8ad59578861c1e55ed0fb3dbff
[INFO] running `Command { std: "docker" "start" "-a" "febc1c81ac0db659cb5b2fa8d0a1722084290b8ad59578861c1e55ed0fb3dbff", kill_on_drop: false }`
[INFO] [stderr]    Compiling advent-of-code-2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `lazy_static::lazy_static`
[INFO] [stdout]  --> src/problem_07.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use lazy_static::lazy_static;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `regex::Regex`
[INFO] [stdout]  --> src/problem_07.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use regex::Regex;
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/problem_07.rs:75:57
[INFO] [stdout]    |
[INFO] [stdout] 75 | fn load_expansion_rules<'a, I: Iterator<Item = String>>(i: I) -> Option<ExpansionRules<'a>> {
[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: unused variable: `s`
[INFO] [stdout]   --> src/problem_07.rs:79:28
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn load_expansion_rule<'a>(s: &'a str) -> Option<(&'a str, HashMap<&'a str, i64>)> {
[INFO] [stdout]    |                            ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expansion_rules`
[INFO] [stdout]   --> src/problem_07.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let expansion_rules = load_expansion_rules(
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expansion_rules`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/problem_16.rs:82:17
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `can_contain_target`
[INFO] [stdout]   --> src/problem_07.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn can_contain_target<'a>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `min`
[INFO] [stdout]   --> src/problem_16.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     min: i64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max`
[INFO] [stdout]   --> src/problem_16.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     max: i64,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/problem_16.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn new(min: i64, max: i64) -> Range {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `contains`
[INFO] [stdout]   --> src/problem_16.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn contains(&self, value: i64) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/problem_16.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn new(ranges: Vec<Range>) -> DisjunctRange {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `contains`
[INFO] [stdout]   --> src/problem_16.rs:45:8
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn contains(&self, value: i64) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `are_any_valid`
[INFO] [stdout]   --> src/problem_16.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn are_any_valid(&self, t: &Ticket) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `Command { std: "docker" "inspect" "febc1c81ac0db659cb5b2fa8d0a1722084290b8ad59578861c1e55ed0fb3dbff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "febc1c81ac0db659cb5b2fa8d0a1722084290b8ad59578861c1e55ed0fb3dbff", kill_on_drop: false }`
[INFO] [stdout] febc1c81ac0db659cb5b2fa8d0a1722084290b8ad59578861c1e55ed0fb3dbff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 78a65d95238d74342dbd41531dcb5bb2fb172fde563a040062504ddd4c7fefe8
[INFO] running `Command { std: "docker" "start" "-a" "78a65d95238d74342dbd41531dcb5bb2fb172fde563a040062504ddd4c7fefe8", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused import: `lazy_static::lazy_static`
[INFO] [stdout] running 15 tests
[INFO] [stderr]  --> src/problem_07.rs:7:5
[INFO] [stdout] test problem_03::tests::test_given_input ... ok
[INFO] [stderr]   |
[INFO] [stdout] test problem_05::test::test_find_seat ... ok
[INFO] [stderr] 7 | use lazy_static::lazy_static;
[INFO] [stdout] test problem_01::tests::test_two_terms ... ok
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] test problem_05::test::test_find_seat_failure ... ok
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `regex::Regex`
[INFO] [stderr]  --> src/problem_07.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use regex::Regex;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/problem_07.rs:75:57
[INFO] [stderr]    |
[INFO] [stderr] 75 | fn load_expansion_rules<'a, I: Iterator<Item = String>>(i: I) -> Option<ExpansionRules<'a>> {
[INFO] [stderr]    |                                                         ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/problem_07.rs:79:28
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn load_expansion_rule<'a>(s: &'a str) -> Option<(&'a str, HashMap<&'a str, i64>)> {
[INFO] [stderr]    |                            ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `expansion_rules`
[INFO] [stderr]   --> src/problem_07.rs:20:13
[INFO] [stderr]    |
[INFO] [stderr] 20 |         let expansion_rules = load_expansion_rules(
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_expansion_rules`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]   --> src/problem_16.rs:82:17
[INFO] [stderr]    |
[INFO] [stderr] 82 |     fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stderr]    |                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `can_contain_target`
[INFO] [stderr]   --> src/problem_07.rs:36:4
[INFO] [stderr]    |
[INFO] [stderr] 36 | fn can_contain_target<'a>(
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `min`
[INFO] [stderr]   --> src/problem_16.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     min: i64,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `max`
[INFO] [stderr]   --> src/problem_16.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     max: i64,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/problem_16.rs:29:8
[INFO] [stderr]    |
[INFO] [stderr] 29 |     fn new(min: i64, max: i64) -> Range {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `contains`
[INFO] [stderr]   --> src/problem_16.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 |     fn contains(&self, value: i64) -> bool {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/problem_16.rs:41:8
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn new(ranges: Vec<Range>) -> DisjunctRange {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `contains`
[INFO] [stderr]   --> src/problem_16.rs:45:8
[INFO] [stderr]    |
[INFO] [stderr] 45 |     fn contains(&self, value: i64) -> bool {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `are_any_valid`
[INFO] [stderr]   --> src/problem_16.rs:61:8
[INFO] [stderr]    |
[INFO] [stderr] 61 |     fn are_any_valid(&self, t: &Ticket) -> bool {
[INFO] [stderr]    |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/advent_of_code_2020-d670e1d6353770f6)
[INFO] [stdout] test problem_04::test::test_is_valid_passport_id ... ok
[INFO] [stdout] test problem_04::test::test_is_valid_birth_year ... ok
[INFO] [stdout] test problem_04::test::test_is_valid_eye_color ... ok
[INFO] [stdout] test problem_05::tests::test_seat_id ... ok
[INFO] [stdout] test problem_01::tests::test_three_terms ... ok
[INFO] [stdout] test problem_04::test::test_is_valid_hair_color ... ok
[INFO] [stdout] test problem_04::test::test_invalid ... ok
[INFO] [stdout] test problem_15::tests::test_number_game ... ok
[INFO] [stdout] test problem_04::test::test_is_valid_height ... ok
[INFO] [stdout] test problem_04::test::test_valid ... ok
[INFO] [stdout] test problem_07::tests::test_load_expansion_rule ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- problem_07::tests::test_load_expansion_rule stdout ----
[INFO] [stdout] thread 'problem_07::tests::test_load_expansion_rule' panicked at 'not yet implemented', src/problem_07.rs:81:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5649442e6990 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stdout]    1:     0x5649442e6990 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stdout]    2:     0x5649442e6990 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stdout]    3:     0x5649442e6990 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stdout]    4:     0x5649443095fc - core::fmt::write::h306731c068f7162c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stdout]    5:     0x5649442e38b5 - std::io::Write::write_fmt::h87f19b0a2cd190bc
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stdout]    6:     0x5649442e8afb - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stdout]    7:     0x5649442e8afb - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stdout]    8:     0x5649442e8afb - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stdout]    9:     0x5649442e860c - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:222:9
[INFO] [stdout]   10:     0x5649442e91c4 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stdout]   11:     0x5649442e8c77 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:517:13
[INFO] [stdout]   12:     0x5649442e6e8c - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stdout]   13:     0x5649442e8c09 - rust_begin_unwind
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stdout]   14:     0x5649440b2b31 - core::panicking::panic_fmt::hca6330e3e14086b4
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:92:14
[INFO] [stdout]   15:     0x5649440b2a7d - core::panicking::panic::h1a48d878ff3dcd40
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:50:5
[INFO] [stdout]   16:     0x5649440d102a - advent_of_code_2020::problem_07::load_expansion_rule::h08e8441c4e8523e8
[INFO] [stdout]                                at /opt/rustwide/workdir/src/problem_07.rs:81:5
[INFO] [stdout]   17:     0x5649440d4450 - advent_of_code_2020::problem_07::tests::test_load_expansion_rule::h06aac41a4dc166f0
[INFO] [stdout]                                at /opt/rustwide/workdir/src/problem_07.rs:90:30
[INFO] [stdout]   18:     0x5649440d440a - advent_of_code_2020::problem_07::tests::test_load_expansion_rule::{{closure}}::h0322048cb58379ba
[INFO] [stdout]                                at /opt/rustwide/workdir/src/problem_07.rs:89:5
[INFO] [stdout]   19:     0x5649440c95fe - core::ops::function::FnOnce::call_once::hb6bd66252bbb5491
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   20:     0x5649440fdb93 - core::ops::function::FnOnce::call_once::h152e7e439ff59e19
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   21:     0x5649440fdb93 - test::__rust_begin_short_backtrace::h0908f3b1fdbb72ab
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:577:5
[INFO] [stdout]   22:     0x5649440fc650 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf6d2a51e5587546c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   23:     0x5649440fc650 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h8af660f3a89ef593
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   24:     0x5649440fc650 - std::panicking::try::do_call::hd36aef60f84b6d36
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   25:     0x5649440fc650 - std::panicking::try::h9932b4480e69817c
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   26:     0x5649440fc650 - std::panic::catch_unwind::h6aa177099cfff5f8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   27:     0x5649440fc650 - test::run_test_in_process::h5884d6f2d99e20c3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:600:18
[INFO] [stdout]   28:     0x5649440fc650 - test::run_test::run_test_inner::{{closure}}::h6fdc58c6d5f5b6e3
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:492:39
[INFO] [stdout]   29:     0x5649440d5d02 - test::run_test::run_test_inner::{{closure}}::h408365d67a78ade8
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/test/src/lib.rs:519:37
[INFO] [stdout]   30:     0x5649440d5d02 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb560b77c4f701523
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stdout]   31:     0x5649440d98b8 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hf2e7831dad93c597
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:481:17
[INFO] [stdout]   32:     0x5649440d98b8 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd2e08783d8be4d02
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:347:9
[INFO] [stdout]   33:     0x5649440d98b8 - std::panicking::try::do_call::h062597b7acfd6b82
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stdout]   34:     0x5649440d98b8 - std::panicking::try::h0d7b79db04c14552
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stdout]   35:     0x5649440d98b8 - std::panic::catch_unwind::hb01a0b5e7c8cd43b
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stdout]   36:     0x5649440d98b8 - std::thread::Builder::spawn_unchecked::{{closure}}::h5bde48cc887e0d1e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/thread/mod.rs:480:30
[INFO] [stdout]   37:     0x5649440d98b8 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h745ea30807a29e55
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stdout]   38:     0x5649442edc87 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7ece6cfefaff1005
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   39:     0x5649442edc87 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb8b48e55c21f193e
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/alloc/src/boxed.rs:1575:9
[INFO] [stdout]   40:     0x5649442edc87 - std::sys::unix::thread::Thread::new::thread_start::h8c7c4450dba62914
[INFO] [stdout]                                at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stdout]   41:     0x7fb594171609 - start_thread
[INFO] [stdout]   42:     0x7fb593f43293 - clone
[INFO] [stdout]   43:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     problem_07::tests::test_load_expansion_rule
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 14 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.07s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--bin advent-of-code-2020'
[INFO] running `Command { std: "docker" "inspect" "78a65d95238d74342dbd41531dcb5bb2fb172fde563a040062504ddd4c7fefe8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78a65d95238d74342dbd41531dcb5bb2fb172fde563a040062504ddd4c7fefe8", kill_on_drop: false }`
[INFO] [stdout] 78a65d95238d74342dbd41531dcb5bb2fb172fde563a040062504ddd4c7fefe8
