[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] checking crockeo/advent-of-code-2020 against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrockeo%2Fadvent-of-code-2020" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[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-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/crockeo/advent-of-code-2020 on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 544ab1ad2a3b04f2625497c1bdeecb8651de5255a3cf99c625d67486c92863ff
[INFO] running `Command { std: "docker" "start" "-a" "544ab1ad2a3b04f2625497c1bdeecb8651de5255a3cf99c625d67486c92863ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "544ab1ad2a3b04f2625497c1bdeecb8651de5255a3cf99c625d67486c92863ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "544ab1ad2a3b04f2625497c1bdeecb8651de5255a3cf99c625d67486c92863ff", kill_on_drop: false }`
[INFO] [stdout] 544ab1ad2a3b04f2625497c1bdeecb8651de5255a3cf99c625d67486c92863ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b3255afad00c9b84c9ee4b309b4ab9b78c851f54a3f6a26451a8a6f84e2e2d8
[INFO] running `Command { std: "docker" "start" "-a" "0b3255afad00c9b84c9ee4b309b4ab9b78c851f54a3f6a26451a8a6f84e2e2d8", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking 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)]` (part of `#[warn(unused)]`) 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 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)]` (part of `#[warn(unused)]`) 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: `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]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[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] 
[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: `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: field `country_id` is never read
[INFO] [stdout]   --> src/problem_04.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | struct Passport<'a> {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 89 |     country_id: Option<&'a str>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Passport` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `can_contain_target` is never used
[INFO] [stdout]   --> src/problem_07.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn can_contain_target<'a>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `load_expansion_rule` is never used
[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: struct `Range` is never constructed
[INFO] [stdout]   --> src/problem_16.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Range {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `contains` are never used
[INFO] [stdout]   --> src/problem_16.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl Range {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 29 |     fn new(min: i64, max: i64) -> Range {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn contains(&self, value: i64) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DisjunctRange` is never constructed
[INFO] [stdout]   --> src/problem_16.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct DisjunctRange(Vec<Range>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `contains` are never used
[INFO] [stdout]   --> src/problem_16.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl DisjunctRange {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 41 |     fn new(ranges: Vec<Range>) -> DisjunctRange {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn contains(&self, value: i64) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValidationRules` is never constructed
[INFO] [stdout]   --> src/problem_16.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | struct ValidationRules(HashMap<String, DisjunctRange>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `are_any_valid` is never used
[INFO] [stdout]   --> src/problem_16.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl ValidationRules {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn are_any_valid(&self, t: &Ticket) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ticket` is never constructed
[INFO] [stdout]   --> src/problem_16.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | struct Ticket(Vec<i64>);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/problem_04.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn parse_batch_passports(s: &str) -> Vec<Passport> {
[INFO] [stdout]    |                             ^^^^         ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn parse_batch_passports(s: &str) -> Vec<Passport<'_>> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/problem_04.rs:95:18
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn parse(s: &'_ str) -> Option<Passport> {
[INFO] [stdout]    |                  ^^                ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn parse(s: &'_ str) -> Option<Passport<'_>> {
[INFO] [stdout]    |                                            ++++
[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]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[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] 
[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: `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: field `country_id` is never read
[INFO] [stdout]   --> src/problem_04.rs:89:5
[INFO] [stdout]    |
[INFO] [stdout] 81 | struct Passport<'a> {
[INFO] [stdout]    |        -------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 89 |     country_id: Option<&'a str>,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Passport` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `can_contain_target` is never used
[INFO] [stdout]   --> src/problem_07.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn can_contain_target<'a>(
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Range` is never constructed
[INFO] [stdout]   --> src/problem_16.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Range {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `contains` are never used
[INFO] [stdout]   --> src/problem_16.rs:29:8
[INFO] [stdout]    |
[INFO] [stdout] 28 | impl Range {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 29 |     fn new(min: i64, max: i64) -> Range {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn contains(&self, value: i64) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DisjunctRange` is never constructed
[INFO] [stdout]   --> src/problem_16.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | struct DisjunctRange(Vec<Range>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `contains` are never used
[INFO] [stdout]   --> src/problem_16.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl DisjunctRange {
[INFO] [stdout]    | ------------------ associated items in this implementation
[INFO] [stdout] 41 |     fn new(ranges: Vec<Range>) -> DisjunctRange {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 45 |     fn contains(&self, value: i64) -> bool {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ValidationRules` is never constructed
[INFO] [stdout]   --> src/problem_16.rs:56:8
[INFO] [stdout]    |
[INFO] [stdout] 56 | struct ValidationRules(HashMap<String, DisjunctRange>);
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `are_any_valid` is never used
[INFO] [stdout]   --> src/problem_16.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl ValidationRules {
[INFO] [stdout]    | -------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 61 |     fn are_any_valid(&self, t: &Ticket) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Ticket` is never constructed
[INFO] [stdout]   --> src/problem_16.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 | struct Ticket(Vec<i64>);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/problem_04.rs:43:29
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn parse_batch_passports(s: &str) -> Vec<Passport> {
[INFO] [stdout]    |                             ^^^^         ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn parse_batch_passports(s: &str) -> Vec<Passport<'_>> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/problem_04.rs:95:18
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn parse(s: &'_ str) -> Option<Passport> {
[INFO] [stdout]    |                  ^^                ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                  |
[INFO] [stdout]    |                  the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn parse(s: &'_ str) -> Option<Passport<'_>> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "0b3255afad00c9b84c9ee4b309b4ab9b78c851f54a3f6a26451a8a6f84e2e2d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b3255afad00c9b84c9ee4b309b4ab9b78c851f54a3f6a26451a8a6f84e2e2d8", kill_on_drop: false }`
[INFO] [stdout] 0b3255afad00c9b84c9ee4b309b4ab9b78c851f54a3f6a26451a8a6f84e2e2d8
