Dec 19 21:55:11.315 INFO checking ShaunApps/learning-rust-and-bitcoin against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 21:55:11.315 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/ShaunApps/learning-rust-and-bitcoin:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 21:55:11.640 INFO [stdout] d06bc29a0abdae49e5e1a5f5d100cfdc65915060c10f872f25d6dec3107f3c19
Dec 19 21:55:11.646 INFO running `"docker" "start" "-a" "d06bc29a0abdae49e5e1a5f5d100cfdc65915060c10f872f25d6dec3107f3c19"`
Dec 19 21:55:13.671 INFO [stderr]    Compiling regex v1.0.1
Dec 19 21:55:13.672 INFO [stderr]     Checking regex-syntax v0.6.1
Dec 19 21:55:13.673 INFO [stderr]     Checking want v0.0.5
Dec 19 21:55:13.673 INFO [stderr]     Checking bytes v0.4.8
Dec 19 21:55:13.674 INFO [stderr]     Checking mio v0.6.14
Dec 19 21:55:13.674 INFO [stderr]     Checking thread_local v0.3.5
Dec 19 21:55:13.675 INFO [stderr]     Checking tokio-threadpool v0.1.4
Dec 19 21:55:17.727 INFO [stderr]     Checking tokio-io v0.1.7
Dec 19 21:55:17.727 INFO [stderr]     Checking http v0.1.6
Dec 19 21:55:20.140 INFO [stderr]     Checking tokio-codec v0.1.0
Dec 19 21:55:20.140 INFO [stderr]     Checking tokio-reactor v0.1.2
Dec 19 21:55:20.140 INFO [stderr]     Checking tokio-fs v0.1.1
Dec 19 21:55:21.697 INFO [stderr]     Checking tokio-udp v0.1.1
Dec 19 21:55:21.697 INFO [stderr]     Checking tokio-tcp v0.1.0
Dec 19 21:55:22.356 INFO [stderr]     Checking tokio v0.1.7
Dec 19 21:55:22.628 INFO [stderr]     Checking h2 v0.1.10
Dec 19 21:55:24.884 INFO [stderr]     Checking env_logger v0.5.10
Dec 19 21:55:25.651 INFO [stderr]     Checking pretty_env_logger v0.2.3
Dec 19 21:55:26.439 INFO [stderr]     Checking hyper v0.12.2
Dec 19 21:55:29.629 INFO [stderr]     Checking crypto v0.1.0 (/opt/crater/workdir)
Dec 19 21:55:30.580 INFO [stderr] warning: unused `#[macro_use]` import
Dec 19 21:55:30.580 INFO [stderr]  --> src/main.rs:5:1
Dec 19 21:55:30.580 INFO [stderr]   |
Dec 19 21:55:30.580 INFO [stderr] 5 | #[macro_use]
Dec 19 21:55:30.580 INFO [stderr]   | ^^^^^^^^^^^^
Dec 19 21:55:30.580 INFO [stderr]   |
Dec 19 21:55:30.580 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 21:55:30.580 INFO [stderr] 
Dec 19 21:55:30.580 INFO [stderr] warning: unused imports: `Error`, `Value`
Dec 19 21:55:30.580 INFO [stderr]  --> src/main.rs:8:18
Dec 19 21:55:30.580 INFO [stderr]   |
Dec 19 21:55:30.580 INFO [stderr] 8 | use serde_json::{Value, Error};
Dec 19 21:55:30.580 INFO [stderr]   |                  ^^^^^  ^^^^^
Dec 19 21:55:30.580 INFO [stderr] 
Dec 19 21:55:30.580 INFO [stderr] warning: unused imports: `Digest`, `Sha256`
Dec 19 21:55:30.580 INFO [stderr]   --> src/main.rs:10:12
Dec 19 21:55:30.580 INFO [stderr]    |
Dec 19 21:55:30.580 INFO [stderr] 10 | use sha2::{Sha256, Digest};
Dec 19 21:55:30.580 INFO [stderr]    |            ^^^^^^  ^^^^^^
Dec 19 21:55:30.580 INFO [stderr] 
Dec 19 21:55:30.580 INFO [stderr] warning: unused import: `std::env`
Dec 19 21:55:30.580 INFO [stderr]   --> src/main.rs:11:5
Dec 19 21:55:30.580 INFO [stderr]    |
Dec 19 21:55:30.580 INFO [stderr] 11 | use std::env;
Dec 19 21:55:30.580 INFO [stderr]    |     ^^^^^^^^
Dec 19 21:55:30.580 INFO [stderr] 
Dec 19 21:55:30.580 INFO [stderr] warning: unused imports: `Future`, `Stream`, `self`
Dec 19 21:55:30.580 INFO [stderr]   --> src/main.rs:12:17
Dec 19 21:55:30.580 INFO [stderr]    |
Dec 19 21:55:30.580 INFO [stderr] 12 | use hyper::rt::{self, Future, Stream};
Dec 19 21:55:30.580 INFO [stderr]    |                 ^^^^  ^^^^^^  ^^^^^^
Dec 19 21:55:30.580 INFO [stderr] 
Dec 19 21:55:30.580 INFO [stderr] warning: unused import: `std::env`
Dec 19 21:55:30.580 INFO [stderr]  --> src/utxos/mod.rs:4:5
Dec 19 21:55:30.580 INFO [stderr]   |
Dec 19 21:55:30.580 INFO [stderr] 4 | use std::env;
Dec 19 21:55:30.580 INFO [stderr]   |     ^^^^^^^^
Dec 19 21:55:30.580 INFO [stderr] 
Dec 19 21:55:30.580 INFO [stderr] warning: unused imports: `Write`, `self`
Dec 19 21:55:30.580 INFO [stderr]  --> src/utxos/mod.rs:5:15
Dec 19 21:55:30.580 INFO [stderr]   |
Dec 19 21:55:30.580 INFO [stderr] 5 | use std::io::{self, Write};
Dec 19 21:55:30.581 INFO [stderr]   |               ^^^^  ^^^^^
Dec 19 21:55:30.581 INFO [stderr] 
Dec 19 21:55:30.581 INFO [stderr] warning: unused import: `std::str`
Dec 19 21:55:30.581 INFO [stderr]  --> src/utxos/mod.rs:6:5
Dec 19 21:55:30.581 INFO [stderr]   |
Dec 19 21:55:30.581 INFO [stderr] 6 | use std::str;
Dec 19 21:55:30.581 INFO [stderr]   |     ^^^^^^^^
Dec 19 21:55:30.581 INFO [stderr] 
Dec 19 21:55:30.581 INFO [stderr] warning: unused import: `hyper::Client`
Dec 19 21:55:30.581 INFO [stderr]  --> src/utxos/mod.rs:8:5
Dec 19 21:55:30.581 INFO [stderr]   |
Dec 19 21:55:30.581 INFO [stderr] 8 | use hyper::Client;
Dec 19 21:55:30.581 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 21:55:30.581 INFO [stderr] 
Dec 19 21:55:30.581 INFO [stderr] warning: unused imports: `Future`, `Stream`, `self`
Dec 19 21:55:30.581 INFO [stderr]  --> src/utxos/mod.rs:9:17
Dec 19 21:55:30.581 INFO [stderr]   |
Dec 19 21:55:30.581 INFO [stderr] 9 | use hyper::rt::{self, Future, Stream};
Dec 19 21:55:30.581 INFO [stderr]   |                 ^^^^  ^^^^^^  ^^^^^^
Dec 19 21:55:30.581 INFO [stderr] 
Dec 19 21:55:30.581 INFO [stderr] warning: unused imports: `Error`, `Value`
Dec 19 21:55:30.581 INFO [stderr]   --> src/utxos/mod.rs:11:18
Dec 19 21:55:30.581 INFO [stderr]    |
Dec 19 21:55:30.581 INFO [stderr] 11 | use serde_json::{Value, Error};
Dec 19 21:55:30.581 INFO [stderr]    |                  ^^^^^  ^^^^^
Dec 19 21:55:30.581 INFO [stderr] 
Dec 19 21:55:30.581 INFO [stderr] warning: unnecessary parentheses around assigned value
Dec 19 21:55:30.581 INFO [stderr]   --> src/field_element.rs:20:23
Dec 19 21:55:30.581 INFO [stderr]    |
Dec 19 21:55:30.581 INFO [stderr] 20 |         let exp_num = (num.pow(other) % self.prime);
Dec 19 21:55:30.581 INFO [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 21:55:30.581 INFO [stderr]    |
Dec 19 21:55:30.581 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 21:55:30.581 INFO [stderr] 
Dec 19 21:55:30.581 INFO [stderr] warning: unused import: `FieldElement`
Dec 19 21:55:30.581 INFO [stderr]  --> src/elliptic_curves.rs:7:21
Dec 19 21:55:30.581 INFO [stderr]   |
Dec 19 21:55:30.581 INFO [stderr] 7 | use field_element::{FieldElement};
Dec 19 21:55:30.581 INFO [stderr]   |                     ^^^^^^^^^^^^
Dec 19 21:55:30.581 INFO [stderr] 
Dec 19 21:55:30.581 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 21:55:30.581 INFO [stderr]   --> src/elliptic_curves.rs:31:12
Dec 19 21:55:30.581 INFO [stderr]    |
Dec 19 21:55:30.581 INFO [stderr] 31 |         if (self.a != other.a || self.b != other.b) { panic!("Points are not on the same curve!")}
Dec 19 21:55:30.581 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 21:55:30.581 INFO [stderr] 
Dec 19 21:55:30.581 INFO [stderr] warning: unused import: `std::fs::File`
Dec 19 21:55:30.581 INFO [stderr]   --> src/main.rs:18:5
Dec 19 21:55:30.581 INFO [stderr]    |
Dec 19 21:55:30.581 INFO [stderr] 18 | use std::fs::File;
Dec 19 21:55:30.581 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 19 21:55:30.581 INFO [stderr] 
Dec 19 21:55:30.581 INFO [stderr] warning: unused import: `std::path::Path`
Dec 19 21:55:30.581 INFO [stderr]   --> src/main.rs:19:5
Dec 19 21:55:30.581 INFO [stderr]    |
Dec 19 21:55:30.581 INFO [stderr] 19 | use std::path::Path;
Dec 19 21:55:30.581 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 19 21:55:30.581 INFO [stderr] 
Dec 19 21:55:30.581 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 19 21:55:30.581 INFO [stderr]   --> src/main.rs:20:5
Dec 19 21:55:30.581 INFO [stderr]    |
Dec 19 21:55:30.581 INFO [stderr] 20 | use std::io::prelude::*;
Dec 19 21:55:30.581 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 19 21:55:30.581 INFO [stderr] 
Dec 19 21:55:30.630 INFO [stderr] warning: unused `#[macro_use]` import
Dec 19 21:55:30.630 INFO [stderr]  --> src/main.rs:5:1
Dec 19 21:55:30.630 INFO [stderr]   |
Dec 19 21:55:30.630 INFO [stderr] 5 | #[macro_use]
Dec 19 21:55:30.630 INFO [stderr]   | ^^^^^^^^^^^^
Dec 19 21:55:30.630 INFO [stderr]   |
Dec 19 21:55:30.630 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 21:55:30.630 INFO [stderr] 
Dec 19 21:55:30.630 INFO [stderr] warning: unused imports: `Error`, `Value`
Dec 19 21:55:30.630 INFO [stderr]  --> src/main.rs:8:18
Dec 19 21:55:30.630 INFO [stderr]   |
Dec 19 21:55:30.630 INFO [stderr] 8 | use serde_json::{Value, Error};
Dec 19 21:55:30.630 INFO [stderr]   |                  ^^^^^  ^^^^^
Dec 19 21:55:30.630 INFO [stderr] 
Dec 19 21:55:30.630 INFO [stderr] warning: unused import: `Digest`
Dec 19 21:55:30.630 INFO [stderr]   --> src/main.rs:10:20
Dec 19 21:55:30.630 INFO [stderr]    |
Dec 19 21:55:30.630 INFO [stderr] 10 | use sha2::{Sha256, Digest};
Dec 19 21:55:30.674 INFO [stderr]    |                    ^^^^^^
Dec 19 21:55:30.674 INFO [stderr] 
Dec 19 21:55:30.674 INFO [stderr] warning: unused import: `std::env`
Dec 19 21:55:30.674 INFO [stderr]   --> src/main.rs:11:5
Dec 19 21:55:30.674 INFO [stderr]    |
Dec 19 21:55:30.674 INFO [stderr] 11 | use std::env;
Dec 19 21:55:30.674 INFO [stderr]    |     ^^^^^^^^
Dec 19 21:55:30.674 INFO [stderr] 
Dec 19 21:55:30.674 INFO [stderr] warning: unused imports: `Future`, `Stream`, `self`
Dec 19 21:55:30.674 INFO [stderr]   --> src/main.rs:12:17
Dec 19 21:55:30.674 INFO [stderr]    |
Dec 19 21:55:30.674 INFO [stderr] 12 | use hyper::rt::{self, Future, Stream};
Dec 19 21:55:30.674 INFO [stderr]    |                 ^^^^  ^^^^^^  ^^^^^^
Dec 19 21:55:30.674 INFO [stderr] 
Dec 19 21:55:30.674 INFO [stderr] warning: unused import: `std::env`
Dec 19 21:55:30.674 INFO [stderr]  --> src/utxos/mod.rs:4:5
Dec 19 21:55:30.674 INFO [stderr]   |
Dec 19 21:55:30.674 INFO [stderr] 4 | use std::env;
Dec 19 21:55:30.674 INFO [stderr]   |     ^^^^^^^^
Dec 19 21:55:30.674 INFO [stderr] 
Dec 19 21:55:30.674 INFO [stderr] warning: unused imports: `Write`, `self`
Dec 19 21:55:30.674 INFO [stderr]  --> src/utxos/mod.rs:5:15
Dec 19 21:55:30.674 INFO [stderr]   |
Dec 19 21:55:30.674 INFO [stderr] 5 | use std::io::{self, Write};
Dec 19 21:55:30.674 INFO [stderr]   |               ^^^^  ^^^^^
Dec 19 21:55:30.674 INFO [stderr] 
Dec 19 21:55:30.674 INFO [stderr] warning: unused import: `std::str`
Dec 19 21:55:30.674 INFO [stderr]  --> src/utxos/mod.rs:6:5
Dec 19 21:55:30.674 INFO [stderr]   |
Dec 19 21:55:30.674 INFO [stderr] 6 | use std::str;
Dec 19 21:55:30.674 INFO [stderr]   |     ^^^^^^^^
Dec 19 21:55:30.674 INFO [stderr] 
Dec 19 21:55:30.674 INFO [stderr] warning: unused import: `hyper::Client`
Dec 19 21:55:30.674 INFO [stderr]  --> src/utxos/mod.rs:8:5
Dec 19 21:55:30.674 INFO [stderr]   |
Dec 19 21:55:30.674 INFO [stderr] 8 | use hyper::Client;
Dec 19 21:55:30.674 INFO [stderr]   |     ^^^^^^^^^^^^^
Dec 19 21:55:30.674 INFO [stderr] 
Dec 19 21:55:30.675 INFO [stderr] warning: unused imports: `Future`, `Stream`, `self`
Dec 19 21:55:30.675 INFO [stderr]  --> src/utxos/mod.rs:9:17
Dec 19 21:55:30.675 INFO [stderr]   |
Dec 19 21:55:30.675 INFO [stderr] 9 | use hyper::rt::{self, Future, Stream};
Dec 19 21:55:30.675 INFO [stderr]   |                 ^^^^  ^^^^^^  ^^^^^^
Dec 19 21:55:30.675 INFO [stderr] 
Dec 19 21:55:30.675 INFO [stderr] warning: unused imports: `Error`, `Value`
Dec 19 21:55:30.675 INFO [stderr]   --> src/utxos/mod.rs:11:18
Dec 19 21:55:30.675 INFO [stderr]    |
Dec 19 21:55:30.675 INFO [stderr] 11 | use serde_json::{Value, Error};
Dec 19 21:55:30.675 INFO [stderr]    |                  ^^^^^  ^^^^^
Dec 19 21:55:30.675 INFO [stderr] 
Dec 19 21:55:30.675 INFO [stderr] warning: unnecessary parentheses around assigned value
Dec 19 21:55:30.675 INFO [stderr]   --> src/field_element.rs:20:23
Dec 19 21:55:30.675 INFO [stderr]    |
Dec 19 21:55:30.675 INFO [stderr] 20 |         let exp_num = (num.pow(other) % self.prime);
Dec 19 21:55:30.675 INFO [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 21:55:30.675 INFO [stderr]    |
Dec 19 21:55:30.675 INFO [stderr]    = note: #[warn(unused_parens)] on by default
Dec 19 21:55:30.675 INFO [stderr] 
Dec 19 21:55:30.675 INFO [stderr] warning: unnecessary parentheses around `if` condition
Dec 19 21:55:30.675 INFO [stderr]   --> src/elliptic_curves.rs:31:12
Dec 19 21:55:30.675 INFO [stderr]    |
Dec 19 21:55:30.675 INFO [stderr] 31 |         if (self.a != other.a || self.b != other.b) { panic!("Points are not on the same curve!")}
Dec 19 21:55:30.675 INFO [stderr]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
Dec 19 21:55:30.675 INFO [stderr] 
Dec 19 21:55:30.675 INFO [stderr] warning: unused import: `std::fs::File`
Dec 19 21:55:30.675 INFO [stderr]   --> src/main.rs:18:5
Dec 19 21:55:30.675 INFO [stderr]    |
Dec 19 21:55:30.675 INFO [stderr] 18 | use std::fs::File;
Dec 19 21:55:30.675 INFO [stderr]    |     ^^^^^^^^^^^^^
Dec 19 21:55:30.675 INFO [stderr] 
Dec 19 21:55:30.675 INFO [stderr] warning: unused import: `std::path::Path`
Dec 19 21:55:30.675 INFO [stderr]   --> src/main.rs:19:5
Dec 19 21:55:30.675 INFO [stderr]    |
Dec 19 21:55:30.675 INFO [stderr] 19 | use std::path::Path;
Dec 19 21:55:30.675 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 19 21:55:30.675 INFO [stderr] 
Dec 19 21:55:30.675 INFO [stderr] warning: unused import: `std::io::prelude::*`
Dec 19 21:55:30.675 INFO [stderr]   --> src/main.rs:20:5
Dec 19 21:55:30.675 INFO [stderr]    |
Dec 19 21:55:30.675 INFO [stderr] 20 | use std::io::prelude::*;
Dec 19 21:55:30.675 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^
Dec 19 21:55:30.675 INFO [stderr] 
Dec 19 21:55:30.702 INFO [stderr] warning: unused variable: `data`
Dec 19 21:55:30.702 INFO [stderr]   --> src/main.rs:28:5
Dec 19 21:55:30.702 INFO [stderr]    |
Dec 19 21:55:30.702 INFO [stderr] 28 | let data = r#"[
Dec 19 21:55:30.702 INFO [stderr]    |     ^^^^ help: consider using `_data` instead
Dec 19 21:55:30.702 INFO [stderr]    |
Dec 19 21:55:30.702 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:55:30.702 INFO [stderr] 
Dec 19 21:55:30.790 INFO [stderr] warning: unused variable: `data`
Dec 19 21:55:30.790 INFO [stderr]   --> src/main.rs:28:5
Dec 19 21:55:30.790 INFO [stderr]    |
Dec 19 21:55:30.790 INFO [stderr] 28 | let data = r#"[
Dec 19 21:55:30.790 INFO [stderr]    |     ^^^^ help: consider using `_data` instead
Dec 19 21:55:30.790 INFO [stderr]    |
Dec 19 21:55:30.790 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 21:55:30.790 INFO [stderr] 
Dec 19 21:55:30.918 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.42s
Dec 19 21:55:31.883 INFO running `"docker" "inspect" "d06bc29a0abdae49e5e1a5f5d100cfdc65915060c10f872f25d6dec3107f3c19"`
Dec 19 21:55:32.158 INFO running `"docker" "rm" "-f" "d06bc29a0abdae49e5e1a5f5d100cfdc65915060c10f872f25d6dec3107f3c19"`
Dec 19 21:55:32.472 INFO [stdout] d06bc29a0abdae49e5e1a5f5d100cfdc65915060c10f872f25d6dec3107f3c19