[INFO] updating cached repository zcash-hackworks/pay-to-sudoku [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/zcash-hackworks/pay-to-sudoku [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/zcash-hackworks/pay-to-sudoku" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/zcash-hackworks/pay-to-sudoku"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/zcash-hackworks/pay-to-sudoku'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/zcash-hackworks/pay-to-sudoku" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/zcash-hackworks/pay-to-sudoku"` [INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/zcash-hackworks/pay-to-sudoku'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] e80e165ab50495606c59edded993e193dc506dc0 [INFO] sha for GitHub repo zcash-hackworks/pay-to-sudoku: e80e165ab50495606c59edded993e193dc506dc0 [INFO] validating manifest of zcash-hackworks/pay-to-sudoku on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of zcash-hackworks/pay-to-sudoku on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing zcash-hackworks/pay-to-sudoku [INFO] finished frobbing zcash-hackworks/pay-to-sudoku [INFO] frobbed toml for zcash-hackworks/pay-to-sudoku written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/zcash-hackworks/pay-to-sudoku/Cargo.toml [INFO] started frobbing zcash-hackworks/pay-to-sudoku [INFO] finished frobbing zcash-hackworks/pay-to-sudoku [INFO] frobbed toml for zcash-hackworks/pay-to-sudoku written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/zcash-hackworks/pay-to-sudoku/Cargo.toml [INFO] crate zcash-hackworks/pay-to-sudoku already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/zcash-hackworks/pay-to-sudoku/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded whiteread v0.2.0 [INFO] [stderr] Downloaded hex v0.1.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking zcash-hackworks/pay-to-sudoku against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-1/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/zcash-hackworks/pay-to-sudoku:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] d50c79ff571a51fd3f203a577a10cbf543ca4facaddd944eb739b254f1da5c6d [INFO] running `"docker" "start" "-a" "d50c79ff571a51fd3f203a577a10cbf543ca4facaddd944eb739b254f1da5c6d"` [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling libc v0.2.50 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Checking cfg-if v0.1.7 [INFO] [stderr] Compiling cc v1.0.31 [INFO] [stderr] Checking encoding_index_tests v0.1.4 [INFO] [stderr] Compiling httparse v1.3.3 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Compiling gcc v0.3.55 [INFO] [stderr] Checking language-tags v0.0.7 [INFO] [stderr] Checking traitobject v0.0.1 [INFO] [stderr] Checking byteorder v0.4.2 [INFO] [stderr] Checking strsim v0.4.1 [INFO] [stderr] Checking ansi_term v0.7.5 [INFO] [stderr] Checking bitflags v0.4.0 [INFO] [stderr] Checking vec_map v0.4.0 [INFO] [stderr] Checking hex v0.1.0 [INFO] [stderr] Checking whiteread v0.2.0 [INFO] [stderr] Checking fixedbitset v0.1.9 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking encoding-index-tradchinese v1.20141219.5 [INFO] [stderr] Checking encoding-index-korean v1.20141219.5 [INFO] [stderr] Checking encoding-index-japanese v1.20141219.5 [INFO] [stderr] Checking encoding-index-singlebyte v1.20141219.5 [INFO] [stderr] Checking encoding-index-simpchinese v1.20141219.5 [INFO] [stderr] Checking clap v1.5.6 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Compiling rust-crypto v0.2.36 [INFO] [stderr] Compiling bzip2-sys v0.1.7 [INFO] [stderr] Compiling miniz-sys v0.1.11 [INFO] [stderr] Checking hpack v0.2.0 [INFO] [stderr] Checking encoding v0.2.33 [INFO] [stderr] Checking solicit v0.4.4 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking num_cpus v0.2.13 [INFO] [stderr] Checking flate2 v0.2.20 [INFO] [stderr] Checking bzip2 v0.2.4 [INFO] [stderr] Checking num-complex v0.1.43 [INFO] [stderr] Checking num-bigint v0.1.44 [INFO] [stderr] Checking rand v0.3.23 [INFO] [stderr] Checking uuid v0.1.18 [INFO] [stderr] Checking url v0.2.38 [INFO] [stderr] Checking cookie v0.1.21 [INFO] [stderr] Checking num-rational v0.1.42 [INFO] [stderr] Checking num v0.1.42 [INFO] [stderr] Checking serde v0.6.15 [INFO] [stderr] Checking mime v0.1.3 [INFO] [stderr] Checking strason v0.3.4 [INFO] [stderr] Checking bincode v0.4.1 [INFO] [stderr] Checking hyper v0.6.16 [INFO] [stderr] Checking jsonrpc v0.7.6 [INFO] [stderr] Checking pay-to-sudoku v0.0.1 (/opt/crater/workdir) [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stderr] --> src/main.rs:15:1 [INFO] [stderr] | [INFO] [stderr] 15 | #[macro_use] extern crate jsonrpc; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Read`, `Write`, `self` [INFO] [stderr] --> src/main.rs:18:15 [INFO] [stderr] | [INFO] [stderr] 18 | use std::io::{self, Read, Write}; [INFO] [stderr] | ^^^^ ^^^^ ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `FromHex` [INFO] [stderr] --> src/main.rs:25:18 [INFO] [stderr] | [INFO] [stderr] 25 | use hex::{ToHex, FromHex}; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `super::Sudoku` [INFO] [stderr] --> src/sudoku.rs:242:9 [INFO] [stderr] | [INFO] [stderr] 242 | use super::Sudoku; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `test::Bencher` [INFO] [stderr] --> src/sudoku.rs:243:9 [INFO] [stderr] | [INFO] [stderr] 243 | use test::Bencher; [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `serde` [INFO] [stderr] --> src/bitcoin.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use serde; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `ToHex` [INFO] [stderr] --> src/bitcoin.rs:8:11 [INFO] [stderr] | [INFO] [stderr] 8 | use hex::{ToHex, FromHex}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:310:28 [INFO] [stderr] | [INFO] [stderr] 310 | if (rx.lock().unwrap().try_recv().is_ok()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused `#[macro_use]` import [INFO] [stderr] --> src/main.rs:15:1 [INFO] [stderr] | [INFO] [stderr] 15 | #[macro_use] extern crate jsonrpc; [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Read`, `Write`, `self` [INFO] [stderr] --> src/main.rs:18:15 [INFO] [stderr] | [INFO] [stderr] 18 | use std::io::{self, Read, Write}; [INFO] [stderr] | ^^^^ ^^^^ ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `FromHex` [INFO] [stderr] --> src/main.rs:25:18 [INFO] [stderr] | [INFO] [stderr] 25 | use hex::{ToHex, FromHex}; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `serde` [INFO] [stderr] --> src/bitcoin.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use serde; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `ToHex` [INFO] [stderr] --> src/bitcoin.rs:8:11 [INFO] [stderr] | [INFO] [stderr] 8 | use hex::{ToHex, FromHex}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around `if` condition [INFO] [stderr] --> src/main.rs:310:28 [INFO] [stderr] | [INFO] [stderr] 310 | if (rx.lock().unwrap().try_recv().is_ok()) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_parens)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `encrypted_solution` [INFO] [stderr] --> src/main.rs:178:16 [INFO] [stderr] | [INFO] [stderr] 178 | |encrypted_solution, proof| {})); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_encrypted_solution` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `proof` [INFO] [stderr] --> src/main.rs:178:36 [INFO] [stderr] | [INFO] [stderr] 178 | |encrypted_solution, proof| {})); [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_proof` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/main.rs:351:13 [INFO] [stderr] | [INFO] [stderr] 351 | fn from(a: bincode::serde::SerializeError) -> ProtoError { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/main.rs:357:13 [INFO] [stderr] | [INFO] [stderr] 357 | fn from(a: bincode::serde::DeserializeError) -> ProtoError { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `dimension` [INFO] [stderr] --> src/sudoku.rs:15:12 [INFO] [stderr] | [INFO] [stderr] 15 | fn new(dimension: usize) -> Possible { [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_dimension` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `undo` [INFO] [stderr] --> src/sudoku.rs:218:21 [INFO] [stderr] | [INFO] [stderr] 218 | let undo = cell.set(candidate); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_undo` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `res` [INFO] [stderr] --> src/bitcoin.rs:54:9 [INFO] [stderr] | [INFO] [stderr] 54 | let res = client.send_request(&request).unwrap(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_res` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `res` [INFO] [stderr] --> src/bitcoin.rs:146:9 [INFO] [stderr] | [INFO] [stderr] 146 | let res = client.send_request(&request).unwrap(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_res` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `res` [INFO] [stderr] --> src/bitcoin.rs:181:9 [INFO] [stderr] | [INFO] [stderr] 181 | let res = client.send_request(&request).unwrap(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_res` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:200:9 [INFO] [stderr] | [INFO] [stderr] 200 | let mut h_of_key: Vec = try!(deserialize_from(stream, Infinite)); [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:323:13 [INFO] [stderr] | [INFO] [stderr] 323 | let mut txid; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:324:13 [INFO] [stderr] | [INFO] [stderr] 324 | let mut vout; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/sudoku.rs:97:13 [INFO] [stderr] | [INFO] [stderr] 97 | let mut grid = Sudoku::new(n); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `print` [INFO] [stderr] --> src/sudoku.rs:164:5 [INFO] [stderr] | [INFO] [stderr] 164 | pub fn print(&self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `get_sudoku_from_stdin` [INFO] [stderr] --> src/util.rs:33:1 [INFO] [stderr] | [INFO] [stderr] 33 | pub fn get_sudoku_from_stdin(dimension: usize) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/sudoku.rs:88:9 [INFO] [stderr] | [INFO] [stderr] 88 | grid.solve(&mut rng); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: `extern` block uses type `ffi::Keypair` which is not FFI-safe: this struct has no fields [INFO] [stderr] --> src/ffi.rs:24:12 [INFO] [stderr] | [INFO] [stderr] 24 | -> *const Keypair; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(improper_ctypes)] on by default [INFO] [stderr] = help: consider adding a member to this struct [INFO] [stderr] note: type defined here [INFO] [stderr] --> src/ffi.rs:11:1 [INFO] [stderr] | [INFO] [stderr] 11 | struct Keypair; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `extern` block uses type `ffi::Keypair` which is not FFI-safe: this struct has no fields [INFO] [stderr] --> src/ffi.rs:25:27 [INFO] [stderr] | [INFO] [stderr] 25 | fn gen_proof(keypair: *const Keypair, h: *mut c_void, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider adding a member to this struct [INFO] [stderr] note: type defined here [INFO] [stderr] --> src/ffi.rs:11:1 [INFO] [stderr] | [INFO] [stderr] 11 | struct Keypair; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `extern` block uses type `ffi::Keypair` which is not FFI-safe: this struct has no fields [INFO] [stderr] --> src/ffi.rs:30:30 [INFO] [stderr] | [INFO] [stderr] 30 | fn snark_verify(keypair: *const Keypair, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider adding a member to this struct [INFO] [stderr] note: type defined here [INFO] [stderr] --> src/ffi.rs:11:1 [INFO] [stderr] | [INFO] [stderr] 11 | struct Keypair; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/util.rs:64:17 [INFO] [stderr] | [INFO] [stderr] 64 | decoder.finish(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:117:9 [INFO] [stderr] | [INFO] [stderr] 117 | handle_server(&mut stream, &ctx, n, &mut rpc); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:141:21 [INFO] [stderr] | [INFO] [stderr] 141 | handle_client(&mut stream, &ctx, n, &mut rpc); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:275:9 [INFO] [stderr] | [INFO] [stderr] 275 | serialize_into(stream, &proof, Infinite); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:276:9 [INFO] [stderr] | [INFO] [stderr] 276 | serialize_into(stream, &encrypted_solution, Infinite); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:277:9 [INFO] [stderr] | [INFO] [stderr] 277 | serialize_into(stream, &h_of_key, Infinite); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:288:9 [INFO] [stderr] | [INFO] [stderr] 288 | serialize_into(stream, &solving_pubkey, Infinite); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:317:17 [INFO] [stderr] | [INFO] [stderr] 317 | tx.send(()); [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused variable: `encrypted_solution` [INFO] [stderr] --> src/main.rs:178:16 [INFO] [stderr] | [INFO] [stderr] 178 | |encrypted_solution, proof| {})); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ help: consider prefixing with an underscore: `_encrypted_solution` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `proof` [INFO] [stderr] --> src/main.rs:178:36 [INFO] [stderr] | [INFO] [stderr] 178 | |encrypted_solution, proof| {})); [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_proof` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/main.rs:351:13 [INFO] [stderr] | [INFO] [stderr] 351 | fn from(a: bincode::serde::SerializeError) -> ProtoError { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `a` [INFO] [stderr] --> src/main.rs:357:13 [INFO] [stderr] | [INFO] [stderr] 357 | fn from(a: bincode::serde::DeserializeError) -> ProtoError { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_a` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `dimension` [INFO] [stderr] --> src/sudoku.rs:15:12 [INFO] [stderr] | [INFO] [stderr] 15 | fn new(dimension: usize) -> Possible { [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_dimension` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `undo` [INFO] [stderr] --> src/sudoku.rs:218:21 [INFO] [stderr] | [INFO] [stderr] 218 | let undo = cell.set(candidate); [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_undo` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `solution` [INFO] [stderr] --> src/sudoku.rs:249:17 [INFO] [stderr] | [INFO] [stderr] 249 | let solution = Sudoku::import_and_solve(8, &puzzle); [INFO] [stderr] | ^^^^^^^^ help: consider prefixing with an underscore: `_solution` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `res` [INFO] [stderr] --> src/bitcoin.rs:54:9 [INFO] [stderr] | [INFO] [stderr] 54 | let res = client.send_request(&request).unwrap(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_res` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `res` [INFO] [stderr] --> src/bitcoin.rs:146:9 [INFO] [stderr] | [INFO] [stderr] 146 | let res = client.send_request(&request).unwrap(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_res` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `res` [INFO] [stderr] --> src/bitcoin.rs:181:9 [INFO] [stderr] | [INFO] [stderr] 181 | let res = client.send_request(&request).unwrap(); [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_res` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:200:9 [INFO] [stderr] | [INFO] [stderr] 200 | let mut h_of_key: Vec = try!(deserialize_from(stream, Infinite)); [INFO] [stderr] | ----^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:323:13 [INFO] [stderr] | [INFO] [stderr] 323 | let mut txid; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:324:13 [INFO] [stderr] | [INFO] [stderr] 324 | let mut vout; [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/sudoku.rs:97:13 [INFO] [stderr] | [INFO] [stderr] 97 | let mut grid = Sudoku::new(n); [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: method is never used: `print` [INFO] [stderr] --> src/sudoku.rs:164:5 [INFO] [stderr] | [INFO] [stderr] 164 | pub fn print(&self) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `get_sudoku_from_stdin` [INFO] [stderr] --> src/util.rs:33:1 [INFO] [stderr] | [INFO] [stderr] 33 | pub fn get_sudoku_from_stdin(dimension: usize) -> Vec { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/sudoku.rs:88:9 [INFO] [stderr] | [INFO] [stderr] 88 | grid.solve(&mut rng); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: `extern` block uses type `ffi::Keypair` which is not FFI-safe: this struct has no fields [INFO] [stderr] --> src/ffi.rs:24:12 [INFO] [stderr] | [INFO] [stderr] 24 | -> *const Keypair; [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(improper_ctypes)] on by default [INFO] [stderr] = help: consider adding a member to this struct [INFO] [stderr] note: type defined here [INFO] [stderr] --> src/ffi.rs:11:1 [INFO] [stderr] | [INFO] [stderr] 11 | struct Keypair; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `extern` block uses type `ffi::Keypair` which is not FFI-safe: this struct has no fields [INFO] [stderr] --> src/ffi.rs:25:27 [INFO] [stderr] | [INFO] [stderr] 25 | fn gen_proof(keypair: *const Keypair, h: *mut c_void, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider adding a member to this struct [INFO] [stderr] note: type defined here [INFO] [stderr] --> src/ffi.rs:11:1 [INFO] [stderr] | [INFO] [stderr] 11 | struct Keypair; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `extern` block uses type `ffi::Keypair` which is not FFI-safe: this struct has no fields [INFO] [stderr] --> src/ffi.rs:30:30 [INFO] [stderr] | [INFO] [stderr] 30 | fn snark_verify(keypair: *const Keypair, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: consider adding a member to this struct [INFO] [stderr] note: type defined here [INFO] [stderr] --> src/ffi.rs:11:1 [INFO] [stderr] | [INFO] [stderr] 11 | struct Keypair; [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/util.rs:64:17 [INFO] [stderr] | [INFO] [stderr] 64 | decoder.finish(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:117:9 [INFO] [stderr] | [INFO] [stderr] 117 | handle_server(&mut stream, &ctx, n, &mut rpc); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:141:21 [INFO] [stderr] | [INFO] [stderr] 141 | handle_client(&mut stream, &ctx, n, &mut rpc); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:275:9 [INFO] [stderr] | [INFO] [stderr] 275 | serialize_into(stream, &proof, Infinite); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:276:9 [INFO] [stderr] | [INFO] [stderr] 276 | serialize_into(stream, &encrypted_solution, Infinite); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:277:9 [INFO] [stderr] | [INFO] [stderr] 277 | serialize_into(stream, &h_of_key, Infinite); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:288:9 [INFO] [stderr] | [INFO] [stderr] 288 | serialize_into(stream, &solving_pubkey, Infinite); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/main.rs:317:17 [INFO] [stderr] | [INFO] [stderr] 317 | tx.send(()); [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 50.83s [INFO] running `"docker" "inspect" "d50c79ff571a51fd3f203a577a10cbf543ca4facaddd944eb739b254f1da5c6d"` [INFO] running `"docker" "rm" "-f" "d50c79ff571a51fd3f203a577a10cbf543ca4facaddd944eb739b254f1da5c6d"` [INFO] [stdout] d50c79ff571a51fd3f203a577a10cbf543ca4facaddd944eb739b254f1da5c6d