Nov 17 09:22:02.777 INFO testing andybug/rustychain against master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c for pr-55982
Nov 17 09:22:02.778 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-0/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt build --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 09:22:03.091 INFO [stdout] 416cc841eea9508684977a787ed466b47e9959f9b9d1e91dc32521915a727190
Nov 17 09:22:03.093 INFO running `"docker" "start" "-a" "416cc841eea9508684977a787ed466b47e9959f9b9d1e91dc32521915a727190"`
Nov 17 09:22:03.651 INFO [stderr] usermod: no changes
Nov 17 09:22:03.759 INFO [stderr]    Compiling odds v0.2.25
Nov 17 09:22:03.759 INFO [stderr]    Compiling serde v1.0.14
Nov 17 09:22:03.759 INFO [stderr]    Compiling yaml-rust v0.3.5
Nov 17 09:22:03.759 INFO [stderr]    Compiling serde_derive v1.0.14
Nov 17 09:22:05.043 INFO [stderr]    Compiling nodrop v0.1.9
Nov 17 09:22:05.220 INFO [stderr]    Compiling generic-array v0.8.3
Nov 17 09:22:05.791 INFO [stderr]    Compiling digest v0.6.2
Nov 17 09:22:05.791 INFO [stderr]    Compiling crypto-mac v0.4.0
Nov 17 09:22:06.239 INFO [stderr]    Compiling blake2 v0.6.1
Nov 17 09:22:16.183 INFO [stderr]    Compiling serde_yaml v0.7.1
Nov 17 09:22:18.386 INFO [stderr]    Compiling rustychain v0.1.0 (/source)
Nov 17 09:22:18.663 INFO [stderr] warning: unused import: `SeqAccess`
Nov 17 09:22:18.663 INFO [stderr]  --> src/blockchain/block.rs:9:70
Nov 17 09:22:18.663 INFO [stderr]   |
Nov 17 09:22:18.663 INFO [stderr] 9 | use self::serde::de::{Visitor, Deserialize, Deserializer, MapAccess, SeqAccess};
Nov 17 09:22:18.663 INFO [stderr]   |                                                                      ^^^^^^^^^
Nov 17 09:22:18.663 INFO [stderr]   |
Nov 17 09:22:18.663 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 17 09:22:18.663 INFO [stderr] 
Nov 17 09:22:18.663 INFO [stderr] warning: unused import: `std::fs`
Nov 17 09:22:18.663 INFO [stderr]  --> src/blockchain/chain.rs:5:5
Nov 17 09:22:18.663 INFO [stderr]   |
Nov 17 09:22:18.663 INFO [stderr] 5 | use std::fs;
Nov 17 09:22:18.663 INFO [stderr]   |     ^^^^^^^
Nov 17 09:22:18.663 INFO [stderr] 
Nov 17 09:22:18.663 INFO [stderr] warning: unused import: `Hash256`
Nov 17 09:22:18.663 INFO [stderr]   --> src/blockchain/chain.rs:14:18
Nov 17 09:22:18.663 INFO [stderr]    |
Nov 17 09:22:18.663 INFO [stderr] 14 | use util::hash::{Hash256, HASH256_BYTES};
Nov 17 09:22:18.663 INFO [stderr]    |                  ^^^^^^^
Nov 17 09:22:18.663 INFO [stderr] 
Nov 17 09:22:18.663 INFO [stderr] warning: unused import: `FromHex`
Nov 17 09:22:18.663 INFO [stderr]  --> src/blockchain/transaction.rs:9:17
Nov 17 09:22:18.663 INFO [stderr]   |
Nov 17 09:22:18.663 INFO [stderr] 9 | use util::hex::{FromHex, ToHex};
Nov 17 09:22:18.663 INFO [stderr]   |                 ^^^^^^^
Nov 17 09:22:18.663 INFO [stderr] 
Nov 17 09:22:18.835 INFO [stderr] warning: unused import: `std::io::prelude`
Nov 17 09:22:18.836 INFO [stderr]  --> src/blockchain/chain.rs:9:5
Nov 17 09:22:18.836 INFO [stderr]   |
Nov 17 09:22:18.836 INFO [stderr] 9 | use std::io::prelude::*;
Nov 17 09:22:18.836 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Nov 17 09:22:18.837 INFO [stderr] 
Nov 17 09:22:18.911 INFO [stderr] warning: method is never used: `reset`
Nov 17 09:22:18.912 INFO [stderr]   --> src/util/hash.rs:25:5
Nov 17 09:22:18.912 INFO [stderr]    |
Nov 17 09:22:18.912 INFO [stderr] 25 |     pub fn reset(&mut self) {
Nov 17 09:22:18.913 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:18.913 INFO [stderr]    |
Nov 17 09:22:18.913 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 17 09:22:18.913 INFO [stderr] 
Nov 17 09:22:18.913 INFO [stderr] warning: function is never used: `now`
Nov 17 09:22:18.913 INFO [stderr]  --> src/util/time.rs:3:1
Nov 17 09:22:18.913 INFO [stderr]   |
Nov 17 09:22:18.913 INFO [stderr] 3 | pub fn now() -> u64 {
Nov 17 09:22:18.913 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:18.913 INFO [stderr] 
Nov 17 09:22:18.913 INFO [stderr] warning: method is never used: `new`
Nov 17 09:22:18.913 INFO [stderr]   --> src/blockchain/block.rs:26:5
Nov 17 09:22:18.913 INFO [stderr]    |
Nov 17 09:22:18.913 INFO [stderr] 26 |     pub fn new() -> Block {
Nov 17 09:22:18.913 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:18.913 INFO [stderr] 
Nov 17 09:22:18.913 INFO [stderr] warning: method is never used: `set_timestamp`
Nov 17 09:22:18.913 INFO [stderr]   --> src/blockchain/block.rs:36:5
Nov 17 09:22:18.913 INFO [stderr]    |
Nov 17 09:22:18.913 INFO [stderr] 36 |     pub fn set_timestamp(&mut self, ts: u64) {
Nov 17 09:22:18.913 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:18.913 INFO [stderr] 
Nov 17 09:22:18.914 INFO [stderr] warning: method is never used: `set_previous`
Nov 17 09:22:18.914 INFO [stderr]   --> src/blockchain/block.rs:40:5
Nov 17 09:22:18.914 INFO [stderr]    |
Nov 17 09:22:18.914 INFO [stderr] 40 |     pub fn set_previous(&mut self, p: &[u8; HASH256_BYTES]) {
Nov 17 09:22:18.914 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:18.914 INFO [stderr] 
Nov 17 09:22:18.914 INFO [stderr] warning: method is never used: `add_transaction`
Nov 17 09:22:18.914 INFO [stderr]   --> src/blockchain/block.rs:48:5
Nov 17 09:22:18.914 INFO [stderr]    |
Nov 17 09:22:18.914 INFO [stderr] 48 |     pub fn add_transaction(&mut self, tx: Transaction) {
Nov 17 09:22:18.914 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:18.914 INFO [stderr] 
Nov 17 09:22:18.914 INFO [stderr] warning: method is never used: `new`
Nov 17 09:22:18.914 INFO [stderr]   --> src/blockchain/transaction.rs:58:5
Nov 17 09:22:18.914 INFO [stderr]    |
Nov 17 09:22:18.914 INFO [stderr] 58 |     pub fn new() -> Transaction {
Nov 17 09:22:18.914 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:18.914 INFO [stderr] 
Nov 17 09:22:18.914 INFO [stderr] warning: method is never used: `set_timestamp`
Nov 17 09:22:18.914 INFO [stderr]   --> src/blockchain/transaction.rs:67:5
Nov 17 09:22:18.914 INFO [stderr]    |
Nov 17 09:22:18.914 INFO [stderr] 67 |     pub fn set_timestamp(&mut self, ts: u64) {
Nov 17 09:22:18.914 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:18.914 INFO [stderr] 
Nov 17 09:22:18.914 INFO [stderr] warning: method is never used: `add_output`
Nov 17 09:22:18.914 INFO [stderr]   --> src/blockchain/transaction.rs:71:5
Nov 17 09:22:18.914 INFO [stderr]    |
Nov 17 09:22:18.914 INFO [stderr] 71 |     pub fn add_output(&mut self, amount: u64) {
Nov 17 09:22:18.914 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:18.914 INFO [stderr] 
Nov 17 09:22:18.914 INFO [stderr] warning: variant `Merkle_root` should have a camel case name such as `MerkleRoot`
Nov 17 09:22:18.914 INFO [stderr]   --> src/blockchain/block.rs:88:52
Nov 17 09:22:18.914 INFO [stderr]    |
Nov 17 09:22:18.914 INFO [stderr] 88 |         enum Field { Version, Timestamp, Previous, Merkle_root };
Nov 17 09:22:18.914 INFO [stderr]    |                                                    ^^^^^^^^^^^
Nov 17 09:22:18.914 INFO [stderr]    |
Nov 17 09:22:18.914 INFO [stderr]    = note: #[warn(non_camel_case_types)] on by default
Nov 17 09:22:18.914 INFO [stderr] 
Nov 17 09:22:18.914 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 09:22:18.914 INFO [stderr]   --> src/blockchain/chain.rs:83:21
Nov 17 09:22:18.914 INFO [stderr]    |
Nov 17 09:22:18.914 INFO [stderr] 83 |                     writeln!(&mut io::stderr(), "read_chain: {}", e);
Nov 17 09:22:18.914 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:18.914 INFO [stderr]    |
Nov 17 09:22:18.914 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 17 09:22:18.914 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 09:22:18.914 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 09:22:18.914 INFO [stderr] 
Nov 17 09:22:18.914 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 09:22:18.914 INFO [stderr]   --> src/blockchain/transaction.rs:19:9
Nov 17 09:22:18.914 INFO [stderr]    |
Nov 17 09:22:18.914 INFO [stderr] 19 |         hash.write_all(&self.hash);
Nov 17 09:22:18.914 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:18.914 INFO [stderr]    |
Nov 17 09:22:18.914 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 09:22:18.914 INFO [stderr] 
Nov 17 09:22:19.803 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.10s
Nov 17 09:22:19.807 INFO [stderr] su: No module specific data is present
Nov 17 09:22:20.323 INFO running `"docker" "inspect" "416cc841eea9508684977a787ed466b47e9959f9b9d1e91dc32521915a727190"`
Nov 17 09:22:20.561 INFO running `"docker" "rm" "-f" "416cc841eea9508684977a787ed466b47e9959f9b9d1e91dc32521915a727190"`
Nov 17 09:22:20.782 INFO [stdout] 416cc841eea9508684977a787ed466b47e9959f9b9d1e91dc32521915a727190
Nov 17 09:22:20.790 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-0/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen --no-run" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 09:22:21.084 INFO [stdout] ad98e3bfccd19f7f8a50599e07cb8c862fcc2c46bc10d93e5308d4c4a4eedd82
Nov 17 09:22:21.088 INFO running `"docker" "start" "-a" "ad98e3bfccd19f7f8a50599e07cb8c862fcc2c46bc10d93e5308d4c4a4eedd82"`
Nov 17 09:22:21.442 INFO [stderr] usermod: no changes
Nov 17 09:22:21.501 INFO [stderr]    Compiling rustychain v0.1.0 (/source)
Nov 17 09:22:21.871 INFO [stderr] warning: unused import: `SeqAccess`
Nov 17 09:22:21.871 INFO [stderr]  --> src/blockchain/block.rs:9:70
Nov 17 09:22:21.871 INFO [stderr]   |
Nov 17 09:22:21.871 INFO [stderr] 9 | use self::serde::de::{Visitor, Deserialize, Deserializer, MapAccess, SeqAccess};
Nov 17 09:22:21.871 INFO [stderr]   |                                                                      ^^^^^^^^^
Nov 17 09:22:21.871 INFO [stderr]   |
Nov 17 09:22:21.871 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 17 09:22:21.871 INFO [stderr] 
Nov 17 09:22:21.871 INFO [stderr] warning: unused import: `std::fs`
Nov 17 09:22:21.871 INFO [stderr]  --> src/blockchain/chain.rs:5:5
Nov 17 09:22:21.871 INFO [stderr]   |
Nov 17 09:22:21.871 INFO [stderr] 5 | use std::fs;
Nov 17 09:22:21.871 INFO [stderr]   |     ^^^^^^^
Nov 17 09:22:21.871 INFO [stderr] 
Nov 17 09:22:21.871 INFO [stderr] warning: unused import: `Hash256`
Nov 17 09:22:21.871 INFO [stderr]   --> src/blockchain/chain.rs:14:18
Nov 17 09:22:21.871 INFO [stderr]    |
Nov 17 09:22:21.871 INFO [stderr] 14 | use util::hash::{Hash256, HASH256_BYTES};
Nov 17 09:22:21.871 INFO [stderr]    |                  ^^^^^^^
Nov 17 09:22:21.871 INFO [stderr] 
Nov 17 09:22:21.871 INFO [stderr] warning: unused import: `FromHex`
Nov 17 09:22:21.871 INFO [stderr]  --> src/blockchain/transaction.rs:9:17
Nov 17 09:22:21.871 INFO [stderr]   |
Nov 17 09:22:21.871 INFO [stderr] 9 | use util::hex::{FromHex, ToHex};
Nov 17 09:22:21.871 INFO [stderr]   |                 ^^^^^^^
Nov 17 09:22:21.871 INFO [stderr] 
Nov 17 09:22:22.047 INFO [stderr] warning: unused import: `std::io::prelude`
Nov 17 09:22:22.047 INFO [stderr]  --> src/blockchain/chain.rs:9:5
Nov 17 09:22:22.047 INFO [stderr]   |
Nov 17 09:22:22.047 INFO [stderr] 9 | use std::io::prelude::*;
Nov 17 09:22:22.047 INFO [stderr]   |     ^^^^^^^^^^^^^^^^
Nov 17 09:22:22.047 INFO [stderr] 
Nov 17 09:22:22.119 INFO [stderr] warning: method is never used: `reset`
Nov 17 09:22:22.119 INFO [stderr]   --> src/util/hash.rs:25:5
Nov 17 09:22:22.119 INFO [stderr]    |
Nov 17 09:22:22.119 INFO [stderr] 25 |     pub fn reset(&mut self) {
Nov 17 09:22:22.119 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:22.119 INFO [stderr]    |
Nov 17 09:22:22.119 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 17 09:22:22.119 INFO [stderr] 
Nov 17 09:22:22.119 INFO [stderr] warning: function is never used: `now`
Nov 17 09:22:22.119 INFO [stderr]  --> src/util/time.rs:3:1
Nov 17 09:22:22.119 INFO [stderr]   |
Nov 17 09:22:22.119 INFO [stderr] 3 | pub fn now() -> u64 {
Nov 17 09:22:22.119 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:22.119 INFO [stderr] 
Nov 17 09:22:22.119 INFO [stderr] warning: method is never used: `new`
Nov 17 09:22:22.119 INFO [stderr]   --> src/blockchain/block.rs:26:5
Nov 17 09:22:22.119 INFO [stderr]    |
Nov 17 09:22:22.119 INFO [stderr] 26 |     pub fn new() -> Block {
Nov 17 09:22:22.119 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:22.119 INFO [stderr] 
Nov 17 09:22:22.119 INFO [stderr] warning: method is never used: `set_timestamp`
Nov 17 09:22:22.119 INFO [stderr]   --> src/blockchain/block.rs:36:5
Nov 17 09:22:22.119 INFO [stderr]    |
Nov 17 09:22:22.119 INFO [stderr] 36 |     pub fn set_timestamp(&mut self, ts: u64) {
Nov 17 09:22:22.119 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:22.119 INFO [stderr] 
Nov 17 09:22:22.119 INFO [stderr] warning: method is never used: `set_previous`
Nov 17 09:22:22.119 INFO [stderr]   --> src/blockchain/block.rs:40:5
Nov 17 09:22:22.119 INFO [stderr]    |
Nov 17 09:22:22.119 INFO [stderr] 40 |     pub fn set_previous(&mut self, p: &[u8; HASH256_BYTES]) {
Nov 17 09:22:22.119 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:22.119 INFO [stderr] 
Nov 17 09:22:22.119 INFO [stderr] warning: method is never used: `add_transaction`
Nov 17 09:22:22.119 INFO [stderr]   --> src/blockchain/block.rs:48:5
Nov 17 09:22:22.119 INFO [stderr]    |
Nov 17 09:22:22.119 INFO [stderr] 48 |     pub fn add_transaction(&mut self, tx: Transaction) {
Nov 17 09:22:22.119 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:22.119 INFO [stderr] 
Nov 17 09:22:22.120 INFO [stderr] warning: method is never used: `new`
Nov 17 09:22:22.120 INFO [stderr]   --> src/blockchain/transaction.rs:58:5
Nov 17 09:22:22.120 INFO [stderr]    |
Nov 17 09:22:22.120 INFO [stderr] 58 |     pub fn new() -> Transaction {
Nov 17 09:22:22.120 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:22.120 INFO [stderr] 
Nov 17 09:22:22.120 INFO [stderr] warning: method is never used: `set_timestamp`
Nov 17 09:22:22.120 INFO [stderr]   --> src/blockchain/transaction.rs:67:5
Nov 17 09:22:22.120 INFO [stderr]    |
Nov 17 09:22:22.120 INFO [stderr] 67 |     pub fn set_timestamp(&mut self, ts: u64) {
Nov 17 09:22:22.120 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:22.120 INFO [stderr] 
Nov 17 09:22:22.120 INFO [stderr] warning: method is never used: `add_output`
Nov 17 09:22:22.120 INFO [stderr]   --> src/blockchain/transaction.rs:71:5
Nov 17 09:22:22.120 INFO [stderr]    |
Nov 17 09:22:22.120 INFO [stderr] 71 |     pub fn add_output(&mut self, amount: u64) {
Nov 17 09:22:22.120 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:22.120 INFO [stderr] 
Nov 17 09:22:22.120 INFO [stderr] warning: variant `Merkle_root` should have a camel case name such as `MerkleRoot`
Nov 17 09:22:22.120 INFO [stderr]   --> src/blockchain/block.rs:88:52
Nov 17 09:22:22.120 INFO [stderr]    |
Nov 17 09:22:22.120 INFO [stderr] 88 |         enum Field { Version, Timestamp, Previous, Merkle_root };
Nov 17 09:22:22.120 INFO [stderr]    |                                                    ^^^^^^^^^^^
Nov 17 09:22:22.120 INFO [stderr]    |
Nov 17 09:22:22.120 INFO [stderr]    = note: #[warn(non_camel_case_types)] on by default
Nov 17 09:22:22.120 INFO [stderr] 
Nov 17 09:22:22.120 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 09:22:22.120 INFO [stderr]   --> src/blockchain/chain.rs:83:21
Nov 17 09:22:22.120 INFO [stderr]    |
Nov 17 09:22:22.120 INFO [stderr] 83 |                     writeln!(&mut io::stderr(), "read_chain: {}", e);
Nov 17 09:22:22.120 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:22.120 INFO [stderr]    |
Nov 17 09:22:22.120 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 17 09:22:22.120 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 09:22:22.120 INFO [stderr]    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
Nov 17 09:22:22.120 INFO [stderr] 
Nov 17 09:22:22.133 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 17 09:22:22.133 INFO [stderr]   --> src/blockchain/transaction.rs:19:9
Nov 17 09:22:22.133 INFO [stderr]    |
Nov 17 09:22:22.133 INFO [stderr] 19 |         hash.write_all(&self.hash);
Nov 17 09:22:22.133 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 17 09:22:22.133 INFO [stderr]    |
Nov 17 09:22:22.133 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 17 09:22:22.133 INFO [stderr] 
Nov 17 09:22:22.471 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.01s
Nov 17 09:22:22.475 INFO [stderr] su: No module specific data is present
Nov 17 09:22:22.904 INFO running `"docker" "inspect" "ad98e3bfccd19f7f8a50599e07cb8c862fcc2c46bc10d93e5308d4c4a4eedd82"`
Nov 17 09:22:23.056 INFO running `"docker" "rm" "-f" "ad98e3bfccd19f7f8a50599e07cb8c862fcc2c46bc10d93e5308d4c4a4eedd82"`
Nov 17 09:22:23.331 INFO [stdout] ad98e3bfccd19f7f8a50599e07cb8c862fcc2c46bc10d93e5308d4c4a4eedd82
Nov 17 09:22:23.338 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55982/worker-0/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-55982/master#6b9b97bd9b704f85f0184f7a213cc4d62bd9654c:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +6b9b97bd9b704f85f0184f7a213cc4d62bd9654c-alt test --frozen" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Nov 17 09:22:23.755 INFO [stdout] 95f096d27ff61ec3204fdf935ca005eb62d120895c5c9bae365a1cc7fa66199c
Nov 17 09:22:23.760 INFO running `"docker" "start" "-a" "95f096d27ff61ec3204fdf935ca005eb62d120895c5c9bae365a1cc7fa66199c"`
Nov 17 09:22:25.067 INFO [stderr] usermod: no changes
Nov 17 09:22:25.183 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.07s
Nov 17 09:22:25.195 INFO [stderr]      Running /target/debug/deps/rustychain-489b809203213b3f
Nov 17 09:22:25.195 INFO [stderr] su: No module specific data is present
Nov 17 09:22:25.196 INFO [stdout] 
Nov 17 09:22:25.196 INFO [stdout] running 0 tests
Nov 17 09:22:25.196 INFO [stdout] 
Nov 17 09:22:25.196 INFO [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
Nov 17 09:22:25.196 INFO [stdout] 
Nov 17 09:22:25.806 INFO running `"docker" "inspect" "95f096d27ff61ec3204fdf935ca005eb62d120895c5c9bae365a1cc7fa66199c"`
Nov 17 09:22:26.146 INFO running `"docker" "rm" "-f" "95f096d27ff61ec3204fdf935ca005eb62d120895c5c9bae365a1cc7fa66199c"`
Nov 17 09:22:26.411 INFO [stdout] 95f096d27ff61ec3204fdf935ca005eb62d120895c5c9bae365a1cc7fa66199c