[INFO] cloning repository https://github.com/stanipintjuk/prime_sieve [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stanipintjuk/prime_sieve" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstanipintjuk%2Fprime_sieve", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstanipintjuk%2Fprime_sieve'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e7e279c6f6f3b278cda2a4f4a9f78c5112fb33bb [INFO] checking stanipintjuk/prime_sieve against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstanipintjuk%2Fprime_sieve" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/stanipintjuk/prime_sieve on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/stanipintjuk/prime_sieve [INFO] finished tweaking git repo https://github.com/stanipintjuk/prime_sieve [INFO] tweaked toml for git repo https://github.com/stanipintjuk/prime_sieve written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/stanipintjuk/prime_sieve 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5f53810e323c32e67d3bf80794bb5987b4823e97f99e2b4b9cb4630a7fc2b02b [INFO] running `Command { std: "docker" "start" "-a" "5f53810e323c32e67d3bf80794bb5987b4823e97f99e2b4b9cb4630a7fc2b02b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5f53810e323c32e67d3bf80794bb5987b4823e97f99e2b4b9cb4630a7fc2b02b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5f53810e323c32e67d3bf80794bb5987b4823e97f99e2b4b9cb4630a7fc2b02b", kill_on_drop: false }` [INFO] [stdout] 5f53810e323c32e67d3bf80794bb5987b4823e97f99e2b4b9cb4630a7fc2b02b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 38ce0b1ff69d763815da42642f0bc384fdbf9d9805a5ab2df547c54812453658 [INFO] running `Command { std: "docker" "start" "-a" "38ce0b1ff69d763815da42642f0bc384fdbf9d9805a5ab2df547c54812453658", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking prime_sieve v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/fs/fs.rs:55:16 [INFO] [stdout] | [INFO] [stdout] 55 | let file = try!(File::open(file_name)); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/fs/fs.rs:68:19 [INFO] [stdout] | [INFO] [stdout] 68 | Err(_) => try!(File::create(fname)), [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/fs/fs.rs:72:9 [INFO] [stdout] | [INFO] [stdout] 72 | try!(file.write_all(&serialize_u64(p))); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/sieve/math/math.rs:39:12 [INFO] [stdout] | [INFO] [stdout] 39 | if try!(is_coprime_to_list(p as u64, init_primes)) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/sieve/math/math.rs:50:12 [INFO] [stdout] | [INFO] [stdout] 50 | if try!(is_coprime_to_list(p, primes_page)) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/sieve/pool.rs:31:19 [INFO] [stdout] | [INFO] [stdout] 31 | let max = try!(math::best_max_for_sieve(last_prime, self.max_ppt as u64)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ThreadError` [INFO] [stdout] --> src/sieve/mod.rs:3:51 [INFO] [stdout] | [INFO] [stdout] 3 | pub use self::pool::{ThreadPool, ThreadPoolError, ThreadError}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `MsgFromWorker` and `MsgToWorker` [INFO] [stdout] --> src/sieve/mod.rs:5:24 [INFO] [stdout] | [INFO] [stdout] 5 | pub use self::worker::{MsgFromWorker, MsgToWorker}; [INFO] [stdout] | ^^^^^^^^^^^^^ ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/sieve/thread.rs:8:20 [INFO] [stdout] | [INFO] [stdout] 8 | fn send(&self, MsgToWorker) -> Result<(), SendError>; [INFO] [stdout] | ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: MsgToWorker` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:19:28 [INFO] [stdout] | [INFO] [stdout] 19 | let mut primes_pager = try!(fs::load_primes(fname)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:22:30 [INFO] [stdout] | [INFO] [stdout] 22 | let mut candidates = try!(thread_pool.find_candidates(init_primes)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:27:26 [INFO] [stdout] | [INFO] [stdout] 27 | candidates = try!(thread_pool.sieve(page, candidates)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/fs/fs.rs:55:16 [INFO] [stdout] | [INFO] [stdout] 55 | let file = try!(File::open(file_name)); [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/fs/fs.rs:68:19 [INFO] [stdout] | [INFO] [stdout] 68 | Err(_) => try!(File::create(fname)), [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/fs/fs.rs:72:9 [INFO] [stdout] | [INFO] [stdout] 72 | try!(file.write_all(&serialize_u64(p))); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/sieve/math/math.rs:39:12 [INFO] [stdout] | [INFO] [stdout] 39 | if try!(is_coprime_to_list(p as u64, init_primes)) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/sieve/math/math.rs:50:12 [INFO] [stdout] | [INFO] [stdout] 50 | if try!(is_coprime_to_list(p, primes_page)) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/sieve/pool.rs:31:19 [INFO] [stdout] | [INFO] [stdout] 31 | let max = try!(math::best_max_for_sieve(last_prime, self.max_ppt as u64)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `ThreadError` [INFO] [stdout] --> src/sieve/mod.rs:3:51 [INFO] [stdout] | [INFO] [stdout] 3 | pub use self::pool::{ThreadPool, ThreadPoolError, ThreadError}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `MsgFromWorker` and `MsgToWorker` [INFO] [stdout] --> src/sieve/mod.rs:5:24 [INFO] [stdout] | [INFO] [stdout] 5 | pub use self::worker::{MsgFromWorker, MsgToWorker}; [INFO] [stdout] | ^^^^^^^^^^^^^ ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition [INFO] [stdout] --> src/sieve/thread.rs:8:20 [INFO] [stdout] | [INFO] [stdout] 8 | fn send(&self, MsgToWorker) -> Result<(), SendError>; [INFO] [stdout] | ^^^^^^^^^^^ help: try naming the parameter or explicitly ignoring it: `_: MsgToWorker` [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018! [INFO] [stdout] = note: for more information, see issue #41686 [INFO] [stdout] = note: `#[warn(anonymous_parameters)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:19:28 [INFO] [stdout] | [INFO] [stdout] 19 | let mut primes_pager = try!(fs::load_primes(fname)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:22:30 [INFO] [stdout] | [INFO] [stdout] 22 | let mut candidates = try!(thread_pool.find_candidates(init_primes)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead [INFO] [stdout] --> src/main.rs:27:26 [INFO] [stdout] | [INFO] [stdout] 27 | candidates = try!(thread_pool.sieve(page, candidates)); [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `part` [INFO] [stdout] --> src/sieve/pool.rs:100:14 [INFO] [stdout] | [INFO] [stdout] 100 | for (part, thread) in threadparts {} [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_part` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `thread` [INFO] [stdout] --> src/sieve/pool.rs:100:20 [INFO] [stdout] | [INFO] [stdout] 100 | for (part, thread) in threadparts {} [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_thread` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `prime_page` [INFO] [stdout] --> src/sieve/pool.rs:94:18 [INFO] [stdout] | [INFO] [stdout] 94 | prime_page: Vec, [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prime_page` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `part` [INFO] [stdout] --> src/sieve/pool.rs:100:14 [INFO] [stdout] | [INFO] [stdout] 100 | for (part, thread) in threadparts {} [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_part` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `thread` [INFO] [stdout] --> src/sieve/pool.rs:100:20 [INFO] [stdout] | [INFO] [stdout] 100 | for (part, thread) in threadparts {} [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_thread` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `prime_page` [INFO] [stdout] --> src/sieve/pool.rs:94:18 [INFO] [stdout] | [INFO] [stdout] 94 | prime_page: Vec, [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_prime_page` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `position` is never read [INFO] [stdout] --> src/fs/fs.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct PrimesPagination { [INFO] [stdout] | ---------------- field in this struct [INFO] [stdout] 10 | pub file: File, [INFO] [stdout] 11 | pub position: usize, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `stop` is never used [INFO] [stdout] --> src/sieve/pool.rs:105:12 [INFO] [stdout] | [INFO] [stdout] 16 | impl ThreadPool { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 105 | pub fn stop(&self) -> Result<(), ThreadPoolError> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Sieve` and `Stop` are never constructed [INFO] [stdout] --> src/sieve/worker.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub enum MsgToWorker { [INFO] [stdout] | ----------- variants in this enum [INFO] [stdout] 10 | FindCandidates(ArcVec, Partition), [INFO] [stdout] 11 | Sieve(ArcVec, ArcVec), [INFO] [stdout] | ^^^^^ [INFO] [stdout] 12 | Stop, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/sieve/worker.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | SieveResult(Vec), [INFO] [stdout] | ----------- ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 17 | SieveResult(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/sieve/worker.rs:18:11 [INFO] [stdout] | [INFO] [stdout] 18 | Error(MathError), [INFO] [stdout] | ----- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 18 | Error(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Ok` is never constructed [INFO] [stdout] --> src/sieve/worker.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 15 | pub enum MsgFromWorker { [INFO] [stdout] | ------------- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 19 | Ok, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 21 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `position` is never read [INFO] [stdout] --> src/fs/fs.rs:11:9 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct PrimesPagination { [INFO] [stdout] | ---------------- field in this struct [INFO] [stdout] 10 | pub file: File, [INFO] [stdout] 11 | pub position: usize, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `stop` is never used [INFO] [stdout] --> src/sieve/pool.rs:105:12 [INFO] [stdout] | [INFO] [stdout] 16 | impl ThreadPool { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 105 | pub fn stop(&self) -> Result<(), ThreadPoolError> { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Sieve` and `Stop` are never constructed [INFO] [stdout] --> src/sieve/worker.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 9 | pub enum MsgToWorker { [INFO] [stdout] | ----------- variants in this enum [INFO] [stdout] 10 | FindCandidates(ArcVec, Partition), [INFO] [stdout] 11 | Sieve(ArcVec, ArcVec), [INFO] [stdout] | ^^^^^ [INFO] [stdout] 12 | Stop, [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/sieve/worker.rs:17:17 [INFO] [stdout] | [INFO] [stdout] 17 | SieveResult(Vec), [INFO] [stdout] | ----------- ^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 17 | SieveResult(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/sieve/worker.rs:18:11 [INFO] [stdout] | [INFO] [stdout] 18 | Error(MathError), [INFO] [stdout] | ----- ^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 18 | Error(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Ok` is never constructed [INFO] [stdout] --> src/sieve/worker.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 15 | pub enum MsgFromWorker { [INFO] [stdout] | ------------- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 19 | Ok, [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 21 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s [INFO] running `Command { std: "docker" "inspect" "38ce0b1ff69d763815da42642f0bc384fdbf9d9805a5ab2df547c54812453658", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "38ce0b1ff69d763815da42642f0bc384fdbf9d9805a5ab2df547c54812453658", kill_on_drop: false }` [INFO] [stdout] 38ce0b1ff69d763815da42642f0bc384fdbf9d9805a5ab2df547c54812453658