[INFO] fetching crate dividebatur 0.2.1...
[INFO] checking dividebatur-0.2.1 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate dividebatur 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate dividebatur 0.2.1 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dividebatur 0.2.1
[INFO] finished tweaking crates.io crate dividebatur 0.2.1
[INFO] tweaked toml for crates.io crate dividebatur 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 598829f1f1e043e6ad0b62a0ffaaaf3d3e1d61d38752e658a99ffde2c510265a
[INFO] running `Command { std: "docker" "start" "-a" "598829f1f1e043e6ad0b62a0ffaaaf3d3e1d61d38752e658a99ffde2c510265a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "598829f1f1e043e6ad0b62a0ffaaaf3d3e1d61d38752e658a99ffde2c510265a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "598829f1f1e043e6ad0b62a0ffaaaf3d3e1d61d38752e658a99ffde2c510265a", kill_on_drop: false }`
[INFO] [stdout] 598829f1f1e043e6ad0b62a0ffaaaf3d3e1d61d38752e658a99ffde2c510265a
[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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ed5cb8b8c75ce76aee8f874ceffd20bf98289926c6d0620d76b89cc2b3615df
[INFO] running `Command { std: "docker" "start" "-a" "0ed5cb8b8c75ce76aee8f874ceffd20bf98289926c6d0620d76b89cc2b3615df", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking csv v1.2.1
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]     Checking tempfile v2.2.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking dividebatur v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/aec/data/candidates.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Ok((rows))
[INFO] [stdout]    |        ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 -     Ok((rows))
[INFO] [stdout] 67 +     Ok(rows)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/engine.rs:304:80
[INFO] [stdout]     |
[INFO] [stdout] 304 |     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<(CandidateIndex)>> {
[INFO] [stdout]     |                                                                                ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 304 -     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<(CandidateIndex)>> {
[INFO] [stdout] 304 +     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<CandidateIndex>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/aec/data/candidates.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Ok((rows))
[INFO] [stdout]    |        ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 -     Ok((rows))
[INFO] [stdout] 67 +     Ok(rows)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/engine.rs:304:80
[INFO] [stdout]     |
[INFO] [stdout] 304 |     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<(CandidateIndex)>> {
[INFO] [stdout]     |                                                                                ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 304 -     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<(CandidateIndex)>> {
[INFO] [stdout] 304 +     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<CandidateIndex>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/aec/data/candidates.rs:42:81
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn load(filename: &str, state: &str) -> Result<Vec<AECAllCandidateRow>, Box<Error>> {
[INFO] [stdout]    |                                                                                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn load(filename: &str, state: &str) -> Result<Vec<AECAllCandidateRow>, Box<dyn Error>> {
[INFO] [stdout]    |                                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/aec/data/formalpreferences.rs:107:89
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn load(filename: &str, candidates: &CandidateData) -> Result<Vec<BallotState>, Box<Error>> {
[INFO] [stdout]     |                                                                                         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn load(filename: &str, candidates: &CandidateData) -> Result<Vec<BallotState>, Box<dyn Error>> {
[INFO] [stdout]     |                                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/aec/data/candidates.rs:42:81
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn load(filename: &str, state: &str) -> Result<Vec<AECAllCandidateRow>, Box<Error>> {
[INFO] [stdout]    |                                                                                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn load(filename: &str, state: &str) -> Result<Vec<AECAllCandidateRow>, Box<dyn Error>> {
[INFO] [stdout]    |                                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/aec/data/formalpreferences.rs:107:89
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn load(filename: &str, candidates: &CandidateData) -> Result<Vec<BallotState>, Box<Error>> {
[INFO] [stdout]     |                                                                                         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn load(filename: &str, candidates: &CandidateData) -> Result<Vec<BallotState>, Box<dyn Error>> {
[INFO] [stdout]     |                                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/aec/data/candidates.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct AECAllCandidateRow {
[INFO] [stdout]    |            ------------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     txn_nm: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     div_nm: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 24 |     occupation: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 25 |     address_1: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 26 |     address_2: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 27 |     postcode: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 28 |     suburb: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 29 |     address_state_ab: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 30 |     contact_work_ph: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 31 |     contact_home_ph: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 32 |     postal_address_1: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 33 |     postal_address_2: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 34 |     postal_suburb: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 35 |     postal_postcode: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 36 |     contact_fax: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 37 |     postal_state_ab: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 38 |     contact_mobile_no: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 39 |     contact_email: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AECAllCandidateRow` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `votes_exhausted` and `papers_exhausted` are never read
[INFO] [stdout]   --> src/engine.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct DistributionOutcome {
[INFO] [stdout]    |        ------------------- fields in this struct
[INFO] [stdout] 32 |     votes_exhausted: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 33 |     papers_exhausted: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DistributionOutcome` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/aec/data/candidates.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct AECAllCandidateRow {
[INFO] [stdout]    |            ------------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     txn_nm: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     div_nm: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 24 |     occupation: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 25 |     address_1: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 26 |     address_2: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 27 |     postcode: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 28 |     suburb: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 29 |     address_state_ab: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 30 |     contact_work_ph: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 31 |     contact_home_ph: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 32 |     postal_address_1: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 33 |     postal_address_2: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 34 |     postal_suburb: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 35 |     postal_postcode: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 36 |     contact_fax: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 37 |     postal_state_ab: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 38 |     contact_mobile_no: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 39 |     contact_email: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AECAllCandidateRow` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `votes_exhausted` and `papers_exhausted` are never read
[INFO] [stdout]   --> src/engine.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct DistributionOutcome {
[INFO] [stdout]    |        ------------------- fields in this struct
[INFO] [stdout] 32 |     votes_exhausted: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 33 |     papers_exhausted: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DistributionOutcome` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/aec/data/candidates.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Ok((rows))
[INFO] [stdout]    |        ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 -     Ok((rows))
[INFO] [stdout] 67 +     Ok(rows)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/engine.rs:304:80
[INFO] [stdout]     |
[INFO] [stdout] 304 |     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<(CandidateIndex)>> {
[INFO] [stdout]     |                                                                                ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 304 -     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<(CandidateIndex)>> {
[INFO] [stdout] 304 +     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<CandidateIndex>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/aec/data/candidates.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Ok((rows))
[INFO] [stdout]    |        ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 67 -     Ok((rows))
[INFO] [stdout] 67 +     Ok(rows)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/engine.rs:304:80
[INFO] [stdout]     |
[INFO] [stdout] 304 |     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<(CandidateIndex)>> {
[INFO] [stdout]     |                                                                                ^              ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 304 -     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<(CandidateIndex)>> {
[INFO] [stdout] 304 +     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<CandidateIndex>> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/aec/data/candidates.rs:42:81
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn load(filename: &str, state: &str) -> Result<Vec<AECAllCandidateRow>, Box<Error>> {
[INFO] [stdout]    |                                                                                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn load(filename: &str, state: &str) -> Result<Vec<AECAllCandidateRow>, Box<dyn Error>> {
[INFO] [stdout]    |                                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/aec/data/candidates.rs:42:81
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn load(filename: &str, state: &str) -> Result<Vec<AECAllCandidateRow>, Box<Error>> {
[INFO] [stdout]    |                                                                                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub fn load(filename: &str, state: &str) -> Result<Vec<AECAllCandidateRow>, Box<dyn Error>> {
[INFO] [stdout]    |                                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/aec/data/formalpreferences.rs:107:89
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn load(filename: &str, candidates: &CandidateData) -> Result<Vec<BallotState>, Box<Error>> {
[INFO] [stdout]     |                                                                                         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn load(filename: &str, candidates: &CandidateData) -> Result<Vec<BallotState>, Box<dyn Error>> {
[INFO] [stdout]     |                                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/aec/data/formalpreferences.rs:107:89
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn load(filename: &str, candidates: &CandidateData) -> Result<Vec<BallotState>, Box<Error>> {
[INFO] [stdout]     |                                                                                         ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 107 | pub fn load(filename: &str, candidates: &CandidateData) -> Result<Vec<BallotState>, Box<dyn Error>> {
[INFO] [stdout]     |                                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/aec/data/candidates.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct AECAllCandidateRow {
[INFO] [stdout]    |            ------------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     txn_nm: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     div_nm: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 24 |     occupation: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 25 |     address_1: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 26 |     address_2: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 27 |     postcode: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 28 |     suburb: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 29 |     address_state_ab: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 30 |     contact_work_ph: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 31 |     contact_home_ph: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 32 |     postal_address_1: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 33 |     postal_address_2: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 34 |     postal_suburb: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 35 |     postal_postcode: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 36 |     contact_fax: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 37 |     postal_state_ab: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 38 |     contact_mobile_no: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 39 |     contact_email: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AECAllCandidateRow` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `votes_exhausted` and `papers_exhausted` are never read
[INFO] [stdout]   --> src/engine.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct DistributionOutcome {
[INFO] [stdout]    |        ------------------- fields in this struct
[INFO] [stdout] 32 |     votes_exhausted: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 33 |     papers_exhausted: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DistributionOutcome` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/aec/data/candidates.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct AECAllCandidateRow {
[INFO] [stdout]    |            ------------------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     txn_nm: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 23 |     div_nm: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 24 |     occupation: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 25 |     address_1: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 26 |     address_2: String,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 27 |     postcode: String,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 28 |     suburb: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 29 |     address_state_ab: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 30 |     contact_work_ph: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 31 |     contact_home_ph: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 32 |     postal_address_1: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 33 |     postal_address_2: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 34 |     postal_suburb: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 35 |     postal_postcode: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 36 |     contact_fax: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 37 |     postal_state_ab: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 38 |     contact_mobile_no: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 39 |     contact_email: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AECAllCandidateRow` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `votes_exhausted` and `papers_exhausted` are never read
[INFO] [stdout]   --> src/engine.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | struct DistributionOutcome {
[INFO] [stdout]    |        ------------------- fields in this struct
[INFO] [stdout] 32 |     votes_exhausted: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 33 |     papers_exhausted: u32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DistributionOutcome` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.63s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "0ed5cb8b8c75ce76aee8f874ceffd20bf98289926c6d0620d76b89cc2b3615df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ed5cb8b8c75ce76aee8f874ceffd20bf98289926c6d0620d76b89cc2b3615df", kill_on_drop: false }`
[INFO] [stdout] 0ed5cb8b8c75ce76aee8f874ceffd20bf98289926c6d0620d76b89cc2b3615df
