[INFO] updating cached repository https://github.com/matteocam/pay-to-sudoku-attack [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] cfc072fcdc17e10916185308edbdd232be808ad4 [INFO] testing matteocam/pay-to-sudoku-attack against beta-2019-09-28 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatteocam%2Fpay-to-sudoku-attack" "work/builds/worker-2/source"` [INFO] [stderr] Cloning into 'work/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/matteocam/pay-to-sudoku-attack on toolchain beta-2019-09-28 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/matteocam/pay-to-sudoku-attack [INFO] finished tweaking git repo https://github.com/matteocam/pay-to-sudoku-attack [INFO] tweaked toml for git repo https://github.com/matteocam/pay-to-sudoku-attack written to work/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/matteocam/pay-to-sudoku-attack already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"` [INFO] [stdout] 4d3202c40b0a2afab894cddca5ee6a734b40c47dc230727e2a10490d7facd63e [INFO] running `"docker" "start" "-a" "4d3202c40b0a2afab894cddca5ee6a734b40c47dc230727e2a10490d7facd63e"` [INFO] [stderr] Compiling rustc-serialize v0.3.23 [INFO] [stderr] Compiling httparse v1.2.2 [INFO] [stderr] Compiling vec_map v0.4.0 [INFO] [stderr] Compiling whiteread v0.2.0 [INFO] [stderr] Compiling hex v0.1.0 [INFO] [stderr] Compiling fixedbitset v0.1.6 [INFO] [stderr] Compiling num_cpus v0.2.13 [INFO] [stderr] Compiling hpack v0.2.0 [INFO] [stderr] Compiling rust-crypto v0.2.36 [INFO] [stderr] Compiling bzip2 v0.2.4 [INFO] [stderr] Compiling clap v1.5.6 [INFO] [stderr] Compiling solicit v0.4.4 [INFO] [stderr] Compiling num-bigint v0.1.37 [INFO] [stderr] Compiling num-complex v0.1.37 [INFO] [stderr] Compiling uuid v0.1.18 [INFO] [stderr] Compiling url v0.2.38 [INFO] [stderr] Compiling num-rational v0.1.36 [INFO] [stderr] Compiling cookie v0.1.21 [INFO] [stderr] Compiling num v0.1.37 [INFO] [stderr] Compiling serde v0.6.15 [INFO] [stderr] Compiling mime v0.1.3 [INFO] [stderr] Compiling strason v0.3.4 [INFO] [stderr] Compiling bincode v0.4.1 [INFO] [stderr] Compiling hyper v0.6.16 [INFO] [stderr] Compiling jsonrpc v0.7.6 [INFO] [stderr] Compiling pay-to-sudoku v0.0.1 (/opt/rustwide/workdir) [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:194:5 [INFO] [stderr] | [INFO] [stderr] 194 | try!(serialize_into(stream, &puzzle, Infinite)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:198:28 [INFO] [stderr] | [INFO] [stderr] 198 | let proof: Cow<[u8]> = try!(deserialize_from(stream, Infinite)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:199:41 [INFO] [stderr] | [INFO] [stderr] 199 | let encrypted_solution: Cow<[u8]> = try!(deserialize_from(stream, Infinite)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:201:33 [INFO] [stderr] | [INFO] [stderr] 201 | let mut h_of_key: Vec = try!(deserialize_from(stream, Infinite)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:214:9 [INFO] [stderr] | [INFO] [stderr] 214 | try!(serialize_into(stream, &redeem_pubkey, Infinite)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:215:9 [INFO] [stderr] | [INFO] [stderr] 215 | try!(serialize_into(stream, &cltv_height, Infinite)); [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:217:38 [INFO] [stderr] | [INFO] [stderr] 217 | let solving_pubkey: String = try!(deserialize_from(stream, Infinite)); [INFO] [stderr] | ^^^ [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: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ffi.rs:54:32 [INFO] [stderr] | [INFO] [stderr] 54 | let closure: &mut &mut for<'a> FnMut(&'a [u8], &'a [i8]) = mem::transmute(cb); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> FnMut(&'a [u8], &'a [i8])` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ffi.rs:66:32 [INFO] [stderr] | [INFO] [stderr] 66 | let closure: &mut &mut for<'a> FnMut(&'a [i8], &'a [i8]) = mem::transmute(cb); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> FnMut(&'a [i8], &'a [i8])` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ffi.rs:73:22 [INFO] [stderr] | [INFO] [stderr] 73 | let mut cb: &mut for<'a> FnMut(&'a [u8], &'a [u8]) = &mut f; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> FnMut(&'a [u8], &'a [u8])` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ffi.rs:97:22 [INFO] [stderr] | [INFO] [stderr] 97 | let mut cb: &mut for<'a> FnMut(&'a [u8], &'a [u8]) = &mut f; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> FnMut(&'a [u8], &'a [u8])` [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/ffi.rs:111:22 [INFO] [stderr] | [INFO] [stderr] 111 | let mut cb: &mut for<'a> FnMut(&'a [u8], &'a [u8]) = &mut f; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn for<'a> FnMut(&'a [u8], &'a [u8])` [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:311:28 [INFO] [stderr] | [INFO] [stderr] 311 | 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:179:16 [INFO] [stderr] | [INFO] [stderr] 179 | |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:179:36 [INFO] [stderr] | [INFO] [stderr] 179 | |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:352:13 [INFO] [stderr] | [INFO] [stderr] 352 | 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:358:13 [INFO] [stderr] | [INFO] [stderr] 358 | 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:201:9 [INFO] [stderr] | [INFO] [stderr] 201 | 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:324:13 [INFO] [stderr] | [INFO] [stderr] 324 | 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:325:13 [INFO] [stderr] | [INFO] [stderr] 325 | 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/main.rs:117:9 [INFO] [stderr] | [INFO] [stderr] 117 | handle_server(&mut stream, &ctx, n, &mut rpc); [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: 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:276:9 [INFO] [stderr] | [INFO] [stderr] 276 | 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:277:9 [INFO] [stderr] | [INFO] [stderr] 277 | 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:278:9 [INFO] [stderr] | [INFO] [stderr] 278 | 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:289:9 [INFO] [stderr] | [INFO] [stderr] 289 | 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:318:17 [INFO] [stderr] | [INFO] [stderr] 318 | 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 `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: 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 [INFO] [stderr] --> src/ffi.rs:24:12 [INFO] [stderr] | [INFO] [stderr] 24 | -> *const Keypair; [INFO] [stderr] | ^^^^^^^^^^^^^^ not FFI-safe [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(improper_ctypes)]` on by default [INFO] [stderr] = help: consider adding a member to this struct [INFO] [stderr] = note: this struct has no fields [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 [INFO] [stderr] --> src/ffi.rs:25:27 [INFO] [stderr] | [INFO] [stderr] 25 | fn gen_proof(keypair: *const Keypair, h: *mut c_void, [INFO] [stderr] | ^^^^^^^^^^^^^^ not FFI-safe [INFO] [stderr] | [INFO] [stderr] = help: consider adding a member to this struct [INFO] [stderr] = note: this struct has no fields [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 [INFO] [stderr] --> src/ffi.rs:30:40 [INFO] [stderr] | [INFO] [stderr] 30 | fn malicious_snark_verify(keypair: *const Keypair, [INFO] [stderr] | ^^^^^^^^^^^^^^ not FFI-safe [INFO] [stderr] | [INFO] [stderr] = help: consider adding a member to this struct [INFO] [stderr] = note: this struct has no fields [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 [INFO] [stderr] --> src/ffi.rs:38:40 [INFO] [stderr] | [INFO] [stderr] 38 | fn prove_malicious_verify(keypair: *const Keypair, h: *mut c_void, [INFO] [stderr] | ^^^^^^^^^^^^^^ not FFI-safe [INFO] [stderr] | [INFO] [stderr] = help: consider adding a member to this struct [INFO] [stderr] = note: this struct has no fields [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] error: linking with `cc` failed: exit code: 1 [INFO] [stderr] | [INFO] [stderr] = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.10.rcgu.o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.11.rcgu.o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.12.rcgu.o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.13.rcgu.o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.14.rcgu.o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.15.rcgu.o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.6.rcgu.o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.7.rcgu.o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.8.rcgu.o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.pay_to_sudoku.4qoqkc9v-cgu.9.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623" "/opt/rustwide/target/debug/deps/pay_to_sudoku-50007fc9cf921623.2m2vm49f3qujn7cc.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/bzip2-sys-85ba621920a3299e/out" "-L" "/opt/rustwide/target/debug/build/miniz-sys-20619cb9925ccce8/out" "-L" "/opt/rustwide/target/debug/build/rust-crypto-c7cbfdca3e4d7090/out" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-lmysnark" "-Wl,-Bstatic" "/opt/rustwide/target/debug/deps/libjsonrpc-a8b1bf57277ca950.rlib" "/opt/rustwide/target/debug/deps/libhyper-7d09f1f746e9e6d6.rlib" "/opt/rustwide/target/debug/deps/libmime-04d0834850936049.rlib" "/opt/rustwide/target/debug/deps/liblanguage_tags-2b6ea0ef23f91360.rlib" "/opt/rustwide/target/debug/deps/libsolicit-25931e0e5455c001.rlib" "/opt/rustwide/target/debug/deps/libhpack-1c5d15c593a93caa.rlib" "/opt/rustwide/target/debug/deps/liblog-f9231666fb78a3c3.rlib" "/opt/rustwide/target/debug/deps/libtypeable-094902d221ec1107.rlib" "/opt/rustwide/target/debug/deps/libtraitobject-b5c0c421e2409ae5.rlib" "/opt/rustwide/target/debug/deps/libnum_cpus-ed6d9f81ef677143.rlib" "/opt/rustwide/target/debug/deps/libhttparse-ac3c46726fa7fc5d.rlib" "/opt/rustwide/target/debug/deps/libunicase-a3a47f82fc9006bc.rlib" "/opt/rustwide/target/debug/deps/libcookie-ad763f1b6a292b8a.rlib" "/opt/rustwide/target/debug/deps/liburl-90dc7f52c86c46d1.rlib" "/opt/rustwide/target/debug/deps/libmatches-14d67259d4142956.rlib" "/opt/rustwide/target/debug/deps/libuuid-65d01262c387ef18.rlib" "/opt/rustwide/target/debug/deps/libcrypto-7e8567d3b83c8473.rlib" "/opt/rustwide/target/debug/deps/libtime-5513141959cf10ef.rlib" "/opt/rustwide/target/debug/deps/libstrason-d0d4bf4262a6ec00.rlib" "/opt/rustwide/target/debug/deps/libencoding-f502efba40cc9ca6.rlib" "/opt/rustwide/target/debug/deps/libencoding_index_tradchinese-9d2c39fc0023ce73.rlib" "/opt/rustwide/target/debug/deps/libencoding_index_simpchinese-0ab2b52e2ceb8792.rlib" "/opt/rustwide/target/debug/deps/libencoding_index_japanese-9c1af5f48c63e566.rlib" "/opt/rustwide/target/debug/deps/libencoding_index_korean-d8d62443e6e9f356.rlib" "/opt/rustwide/target/debug/deps/libencoding_index_singlebyte-4bfdd1f8621eee7d.rlib" "/opt/rustwide/target/debug/deps/libflate2-5037e19e3cf99822.rlib" "/opt/rustwide/target/debug/deps/libminiz_sys-b181b647a78f02b8.rlib" "/opt/rustwide/target/debug/deps/libclap-7cc6a0738d58aee3.rlib" "/opt/rustwide/target/debug/deps/libvec_map-fdf95ffcc3f1b6b1.rlib" "/opt/rustwide/target/debug/deps/libbitflags-8c44b7aba38a898e.rlib" "/opt/rustwide/target/debug/deps/libansi_term-6e150d727849f099.rlib" "/opt/rustwide/target/debug/deps/libstrsim-8bf09659c1c1114d.rlib" "/opt/rustwide/target/debug/deps/libhex-f5afe6ee6509069a.rlib" "/opt/rustwide/target/debug/deps/libthread_scoped-28feb5e0a700566e.rlib" "/opt/rustwide/target/debug/deps/libbincode-0ec1c8b5a39dfc7f.rlib" "/opt/rustwide/target/debug/deps/libserde-dc644b5e7e540890.rlib" "/opt/rustwide/target/debug/deps/libnum-1be761648ba54ca0.rlib" "/opt/rustwide/target/debug/deps/libnum_rational-154ff38633df6c6b.rlib" "/opt/rustwide/target/debug/deps/libnum_bigint-cf2264e50af84578.rlib" "/opt/rustwide/target/debug/deps/librand-31da2a4bda145ca2.rlib" "/opt/rustwide/target/debug/deps/libnum_complex-f475225e7267b240.rlib" "/opt/rustwide/target/debug/deps/libnum_iter-2071c3529e7f4f44.rlib" "/opt/rustwide/target/debug/deps/libnum_integer-cc0751f7e308b717.rlib" "/opt/rustwide/target/debug/deps/libnum_traits-88cc96a86a1932ed.rlib" "/opt/rustwide/target/debug/deps/libbyteorder-3f7de8017388f934.rlib" "/opt/rustwide/target/debug/deps/librustc_serialize-31b1678c07349ebf.rlib" "/opt/rustwide/target/debug/deps/liblibc-106265b24434952a.rlib" "/opt/rustwide/target/debug/deps/libwhiteread-0012b29e3784c262.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-db812c66f862af4c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-e7871a21575d5ff7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-2f2c581bc0d759e6.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-35731cabc05dc8a0.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace-36477394541292db.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libbacktrace_sys-8b706b170c1272d8.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-801dbb3043ccf581.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-a32aa66ce6f72b21.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-d00ea3bfb2bb6c00.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-d2c6ebe88c3e113c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-df74f62f6bb60621.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-2170473575daeedb.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-1a08089bbddc4f51.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2019-09-28-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-f8f562e5472ad5c3.rlib" "-Wl,-Bdynamic" "-lutil" "-ldl" "-lrt" "-lpthread" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-lutil" [INFO] [stderr] = note: /usr/bin/ld: cannot find -lmysnark [INFO] [stderr] collect2: error: ld returned 1 exit status [INFO] [stderr] [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] error: could not compile `pay-to-sudoku`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "4d3202c40b0a2afab894cddca5ee6a734b40c47dc230727e2a10490d7facd63e"` [INFO] running `"docker" "rm" "-f" "4d3202c40b0a2afab894cddca5ee6a734b40c47dc230727e2a10490d7facd63e"` [INFO] [stdout] 4d3202c40b0a2afab894cddca5ee6a734b40c47dc230727e2a10490d7facd63e