[INFO] fetching crate dividebatur 0.2.1...
[INFO] testing dividebatur-0.2.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate dividebatur 0.2.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate dividebatur 0.2.1 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 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-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 8608803027c2528b1bd67b1d8e64a077a68a4c8635304918a47d28b606a5b559
[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" "8608803027c2528b1bd67b1d8e64a077a68a4c8635304918a47d28b606a5b559", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8608803027c2528b1bd67b1d8e64a077a68a4c8635304918a47d28b606a5b559", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8608803027c2528b1bd67b1d8e64a077a68a4c8635304918a47d28b606a5b559", kill_on_drop: false }`
[INFO] [stdout] 8608803027c2528b1bd67b1d8e64a077a68a4c8635304918a47d28b606a5b559
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] 07aa82842e5536b61e7c18bbc7558a808ac1ac4631baf3b69f7882197897be3a
[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" "07aa82842e5536b61e7c18bbc7558a808ac1ac4631baf3b69f7882197897be3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling tempfile v2.2.0
[INFO] [stderr]    Compiling dividebatur v0.2.1 (/opt/rustwide/workdir)
[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]    |                                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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]    |        ^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[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]     |                                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[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]     |                                                                                ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[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]    |                                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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]    |        ^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[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]     |                                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[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]     |                                                                                ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.87s
[INFO] running `Command { std: "docker" "inspect" "07aa82842e5536b61e7c18bbc7558a808ac1ac4631baf3b69f7882197897be3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07aa82842e5536b61e7c18bbc7558a808ac1ac4631baf3b69f7882197897be3a", kill_on_drop: false }`
[INFO] [stdout] 07aa82842e5536b61e7c18bbc7558a808ac1ac4631baf3b69f7882197897be3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] [stdout] 0e46820dbeef0462d26cf16735d98d6a2d363c66eba4633d777ab9393e8d51af
[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" "0e46820dbeef0462d26cf16735d98d6a2d363c66eba4633d777ab9393e8d51af", kill_on_drop: false }`
[INFO] [stderr]    Compiling dividebatur v0.2.1 (/opt/rustwide/workdir)
[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]    |                                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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]    |        ^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[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]     |                                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[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]     |                                                                                ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[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]    |                                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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]    |        ^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[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]     |                                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[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]     |                                                                                ^^^^^^^^^^^^^^^^ help: remove these parentheses
[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]    |                                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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]    |        ^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[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]     |                                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[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]     |                                                                                ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "0e46820dbeef0462d26cf16735d98d6a2d363c66eba4633d777ab9393e8d51af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e46820dbeef0462d26cf16735d98d6a2d363c66eba4633d777ab9393e8d51af", kill_on_drop: false }`
[INFO] [stdout] 0e46820dbeef0462d26cf16735d98d6a2d363c66eba4633d777ab9393e8d51af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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] a65520802c60f2d31a6632224b24278d9fb04ede4d6d48d9f6aa5aa02e8f6143
[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" "a65520802c60f2d31a6632224b24278d9fb04ede4d6d48d9f6aa5aa02e8f6143", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout] running 1 test
[INFO] [stderr]   --> src/aec/data/candidates.rs:42:81
[INFO] [stdout] test aec::data::formalpreferences::tests::it_works ... ok
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 42 | pub fn load(filename: &str, state: &str) -> Result<Vec<AECAllCandidateRow>, Box<Error>> {
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |                                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] running 1 test
[INFO] [stderr] 
[INFO] [stdout] test aec::data::formalpreferences::tests::it_works ... ok
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stdout] 
[INFO] [stderr]   --> src/aec/data/candidates.rs:67:8
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]    |
[INFO] [stdout] 
[INFO] [stderr] 67 |     Ok((rows))
[INFO] [stderr]    |        ^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/aec/data/formalpreferences.rs:107:89
[INFO] [stderr]     |
[INFO] [stderr] 107 | pub fn load(filename: &str, candidates: &CandidateData) -> Result<Vec<BallotState>, Box<Error>> {
[INFO] [stderr]     |                                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/engine.rs:304:80
[INFO] [stderr]     |
[INFO] [stderr] 304 |     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<(CandidateIndex)>> {
[INFO] [stderr]     |                                                                                ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/aec/data/candidates.rs:42:81
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn load(filename: &str, state: &str) -> Result<Vec<AECAllCandidateRow>, Box<Error>> {
[INFO] [stderr]    |                                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/aec/data/candidates.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |     Ok((rows))
[INFO] [stderr]    |        ^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/aec/data/formalpreferences.rs:107:89
[INFO] [stderr]     |
[INFO] [stderr] 107 | pub fn load(filename: &str, candidates: &CandidateData) -> Result<Vec<BallotState>, Box<Error>> {
[INFO] [stderr]     |                                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/engine.rs:304:80
[INFO] [stderr]     |
[INFO] [stderr] 304 |     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<(CandidateIndex)>> {
[INFO] [stderr]     |                                                                                ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/aec/data/candidates.rs:42:81
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub fn load(filename: &str, state: &str) -> Result<Vec<AECAllCandidateRow>, Box<Error>> {
[INFO] [stderr]    |                                                                                 ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> src/aec/data/candidates.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |     Ok((rows))
[INFO] [stderr]    |        ^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/aec/data/formalpreferences.rs:107:89
[INFO] [stderr]     |
[INFO] [stderr] 107 | pub fn load(filename: &str, candidates: &CandidateData) -> Result<Vec<BallotState>, Box<Error>> {
[INFO] [stderr]     |                                                                                         ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> src/engine.rs:304:80
[INFO] [stderr]     |
[INFO] [stderr] 304 |     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<(CandidateIndex)>> {
[INFO] [stderr]     |                                                                                ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dividebatur-f6eb56e5e748f574
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dividebatur-0462eafeb21fd99d
[INFO] [stderr]    Doc-tests dividebatur
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]   --> /opt/rustwide/workdir/src/aec/data/candidates.rs:67:8
[INFO] [stderr]    |
[INFO] [stderr] 67 |     Ok((rows))
[INFO] [stderr]    |        ^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> /opt/rustwide/workdir/src/engine.rs:304:80
[INFO] [stderr]     |
[INFO] [stderr] 304 |     fn find_tie_breaker(&self, candidates: &Vec<CandidateIndex>) -> Option<Vec<(CandidateIndex)>> {
[INFO] [stderr]     |                                                                                ^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[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" "a65520802c60f2d31a6632224b24278d9fb04ede4d6d48d9f6aa5aa02e8f6143", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a65520802c60f2d31a6632224b24278d9fb04ede4d6d48d9f6aa5aa02e8f6143", kill_on_drop: false }`
[INFO] [stdout] a65520802c60f2d31a6632224b24278d9fb04ede4d6d48d9f6aa5aa02e8f6143