Dec 12 00:55:45.383 INFO checking PhdTrollSlayer/CrabChain against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 00:55:45.383 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-alt check --frozen --all --all-targets" "-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"`
Dec 12 00:55:45.628 INFO [stdout] ae8e647a3e27de869f2e3c4b05f3ec783f584d58a4d22860f16be802cf3f458a
Dec 12 00:55:45.633 INFO running `"docker" "start" "-a" "ae8e647a3e27de869f2e3c4b05f3ec783f584d58a4d22860f16be802cf3f458a"`
Dec 12 00:55:46.551 INFO [stderr] usermod: no changes
Dec 12 00:55:46.760 INFO [stderr]    Compiling openssl v0.10.6
Dec 12 00:55:46.760 INFO [stderr]     Checking csv v1.0.0
Dec 12 00:55:52.057 INFO [stderr]     Checking blockchain1 v0.1.0 (/source)
Dec 12 00:55:53.300 INFO [stderr] warning: unused `#[macro_use]` import
Dec 12 00:55:53.300 INFO [stderr]  --> src/lib.rs:5:1
Dec 12 00:55:53.300 INFO [stderr]   |
Dec 12 00:55:53.300 INFO [stderr] 5 | #[macro_use]
Dec 12 00:55:53.300 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 00:55:53.300 INFO [stderr]   |
Dec 12 00:55:53.300 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 00:55:53.300 INFO [stderr] 
Dec 12 00:55:53.300 INFO [stderr] warning: unused import: `seek`
Dec 12 00:55:53.300 INFO [stderr]  --> src/mining.rs:1:5
Dec 12 00:55:53.300 INFO [stderr]   |
Dec 12 00:55:53.300 INFO [stderr] 1 | use seek;
Dec 12 00:55:53.300 INFO [stderr]   |     ^^^^
Dec 12 00:55:53.300 INFO [stderr] 
Dec 12 00:55:53.408 INFO [stderr] warning: function is never used: `find_last_block_hash`
Dec 12 00:55:53.408 INFO [stderr]  --> src/seek.rs:4:1
Dec 12 00:55:53.408 INFO [stderr]   |
Dec 12 00:55:53.408 INFO [stderr] 4 | pub fn find_last_block_hash() -> String {
Dec 12 00:55:53.409 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:55:53.409 INFO [stderr]   |
Dec 12 00:55:53.409 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 00:55:53.409 INFO [stderr] 
Dec 12 00:55:53.409 INFO [stderr] warning: function is never used: `find_last_block_id`
Dec 12 00:55:53.409 INFO [stderr]   --> src/seek.rs:28:1
Dec 12 00:55:53.410 INFO [stderr]    |
Dec 12 00:55:53.410 INFO [stderr] 28 | pub fn find_last_block_id() -> String {
Dec 12 00:55:53.410 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:55:53.410 INFO [stderr] 
Dec 12 00:55:53.410 INFO [stderr] warning: function is never used: `last_block`
Dec 12 00:55:53.410 INFO [stderr]  --> src/mining.rs:5:1
Dec 12 00:55:53.410 INFO [stderr]   |
Dec 12 00:55:53.411 INFO [stderr] 5 | pub fn last_block(prev_hash: String) -> (String, String) {
Dec 12 00:55:53.411 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:55:53.411 INFO [stderr] 
Dec 12 00:55:53.425 INFO [stderr] warning: unused `#[macro_use]` import
Dec 12 00:55:53.426 INFO [stderr]  --> src/lib.rs:5:1
Dec 12 00:55:53.426 INFO [stderr]   |
Dec 12 00:55:53.426 INFO [stderr] 5 | #[macro_use]
Dec 12 00:55:53.426 INFO [stderr]   | ^^^^^^^^^^^^
Dec 12 00:55:53.427 INFO [stderr]   |
Dec 12 00:55:53.427 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 00:55:53.427 INFO [stderr] 
Dec 12 00:55:53.427 INFO [stderr] warning: unused import: `seek`
Dec 12 00:55:53.427 INFO [stderr]  --> src/mining.rs:1:5
Dec 12 00:55:53.427 INFO [stderr]   |
Dec 12 00:55:53.427 INFO [stderr] 1 | use seek;
Dec 12 00:55:53.427 INFO [stderr]   |     ^^^^
Dec 12 00:55:53.427 INFO [stderr] 
Dec 12 00:55:53.640 INFO [stderr] warning: function is never used: `find_last_block_hash`
Dec 12 00:55:53.641 INFO [stderr]  --> src/seek.rs:4:1
Dec 12 00:55:53.641 INFO [stderr]   |
Dec 12 00:55:53.641 INFO [stderr] 4 | pub fn find_last_block_hash() -> String {
Dec 12 00:55:53.641 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:55:53.641 INFO [stderr]   |
Dec 12 00:55:53.641 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 12 00:55:53.641 INFO [stderr] 
Dec 12 00:55:53.641 INFO [stderr] warning: function is never used: `find_last_block_id`
Dec 12 00:55:53.641 INFO [stderr]   --> src/seek.rs:28:1
Dec 12 00:55:53.641 INFO [stderr]    |
Dec 12 00:55:53.641 INFO [stderr] 28 | pub fn find_last_block_id() -> String {
Dec 12 00:55:53.641 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:55:53.641 INFO [stderr] 
Dec 12 00:55:53.641 INFO [stderr] warning: function is never used: `last_block`
Dec 12 00:55:53.641 INFO [stderr]  --> src/mining.rs:5:1
Dec 12 00:55:53.641 INFO [stderr]   |
Dec 12 00:55:53.641 INFO [stderr] 5 | pub fn last_block(prev_hash: String) -> (String, String) {
Dec 12 00:55:53.641 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:55:53.641 INFO [stderr] 
Dec 12 00:55:54.768 INFO [stderr] warning: unused import: `openssl::sha`
Dec 12 00:55:54.768 INFO [stderr]  --> src/new_block.rs:2:5
Dec 12 00:55:54.768 INFO [stderr]   |
Dec 12 00:55:54.768 INFO [stderr] 2 | use openssl::sha;
Dec 12 00:55:54.768 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 12 00:55:54.768 INFO [stderr]   |
Dec 12 00:55:54.768 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 00:55:54.768 INFO [stderr] 
Dec 12 00:55:54.768 INFO [stderr] warning: unused import: `hex`
Dec 12 00:55:54.768 INFO [stderr]  --> src/new_block.rs:3:5
Dec 12 00:55:54.768 INFO [stderr]   |
Dec 12 00:55:54.768 INFO [stderr] 3 | use hex;
Dec 12 00:55:54.768 INFO [stderr]   |     ^^^
Dec 12 00:55:54.768 INFO [stderr] 
Dec 12 00:55:54.772 INFO [stderr] warning: unused import: `std::error::Error`
Dec 12 00:55:54.772 INFO [stderr]  --> src/validator.rs:1:5
Dec 12 00:55:54.772 INFO [stderr]   |
Dec 12 00:55:54.772 INFO [stderr] 1 | use std::error::Error;
Dec 12 00:55:54.772 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 12 00:55:54.772 INFO [stderr] 
Dec 12 00:55:54.772 INFO [stderr] warning: unused import: `std::ptr::null`
Dec 12 00:55:54.772 INFO [stderr]  --> src/validator.rs:4:5
Dec 12 00:55:54.772 INFO [stderr]   |
Dec 12 00:55:54.772 INFO [stderr] 4 | use std::ptr::null;
Dec 12 00:55:54.772 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 12 00:55:54.772 INFO [stderr] 
Dec 12 00:55:54.772 INFO [stderr] warning: unused import: `seek`
Dec 12 00:55:54.772 INFO [stderr]  --> src/mining.rs:1:5
Dec 12 00:55:54.776 INFO [stderr]   |
Dec 12 00:55:54.776 INFO [stderr] 1 | use seek;
Dec 12 00:55:54.776 INFO [stderr]   |     ^^^^
Dec 12 00:55:54.776 INFO [stderr] 
Dec 12 00:55:54.892 INFO [stderr] warning: unused import: `openssl::sha`
Dec 12 00:55:54.892 INFO [stderr]  --> src/new_block.rs:2:5
Dec 12 00:55:54.892 INFO [stderr]   |
Dec 12 00:55:54.892 INFO [stderr] 2 | use openssl::sha;
Dec 12 00:55:54.892 INFO [stderr]   |     ^^^^^^^^^^^^
Dec 12 00:55:54.892 INFO [stderr]   |
Dec 12 00:55:54.892 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 00:55:54.892 INFO [stderr] 
Dec 12 00:55:54.896 INFO [stderr] warning: unused import: `hex`
Dec 12 00:55:54.896 INFO [stderr]  --> src/new_block.rs:3:5
Dec 12 00:55:54.896 INFO [stderr]   |
Dec 12 00:55:54.896 INFO [stderr] 3 | use hex;
Dec 12 00:55:54.896 INFO [stderr]   |     ^^^
Dec 12 00:55:54.896 INFO [stderr] 
Dec 12 00:55:54.896 INFO [stderr] warning: unused import: `std::error::Error`
Dec 12 00:55:54.896 INFO [stderr]  --> src/validator.rs:1:5
Dec 12 00:55:54.896 INFO [stderr]   |
Dec 12 00:55:54.896 INFO [stderr] 1 | use std::error::Error;
Dec 12 00:55:54.896 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 12 00:55:54.896 INFO [stderr] 
Dec 12 00:55:54.896 INFO [stderr] warning: unused import: `std::ptr::null`
Dec 12 00:55:54.896 INFO [stderr]  --> src/validator.rs:4:5
Dec 12 00:55:54.896 INFO [stderr]   |
Dec 12 00:55:54.896 INFO [stderr] 4 | use std::ptr::null;
Dec 12 00:55:54.896 INFO [stderr]   |     ^^^^^^^^^^^^^^
Dec 12 00:55:54.896 INFO [stderr] 
Dec 12 00:55:54.896 INFO [stderr] warning: unused import: `seek`
Dec 12 00:55:54.896 INFO [stderr]  --> src/mining.rs:1:5
Dec 12 00:55:54.896 INFO [stderr]   |
Dec 12 00:55:54.896 INFO [stderr] 1 | use seek;
Dec 12 00:55:54.896 INFO [stderr]   |     ^^^^
Dec 12 00:55:54.896 INFO [stderr] 
Dec 12 00:55:55.016 INFO [stderr] warning: unused variable: `nonce`
Dec 12 00:55:55.016 INFO [stderr]   --> src/new_block.rs:18:17
Dec 12 00:55:55.016 INFO [stderr]    |
Dec 12 00:55:55.016 INFO [stderr] 18 |         let mut nonce: i64 = 0;
Dec 12 00:55:55.016 INFO [stderr]    |                 ^^^^^ help: consider using `_nonce` instead
Dec 12 00:55:55.016 INFO [stderr]    |
Dec 12 00:55:55.016 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 00:55:55.016 INFO [stderr] 
Dec 12 00:55:55.016 INFO [stderr] warning: value assigned to `this_record` is never read
Dec 12 00:55:55.016 INFO [stderr]  --> src/validator.rs:9:13
Dec 12 00:55:55.016 INFO [stderr]   |
Dec 12 00:55:55.016 INFO [stderr] 9 |     let mut this_record = StringRecord::from(vec!["0", "0", "0", "0", "0"]);
Dec 12 00:55:55.016 INFO [stderr]   |             ^^^^^^^^^^^
Dec 12 00:55:55.016 INFO [stderr]   |
Dec 12 00:55:55.016 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Dec 12 00:55:55.016 INFO [stderr] 
Dec 12 00:55:55.029 INFO [stderr] warning: variable does not need to be mutable
Dec 12 00:55:55.029 INFO [stderr]   --> src/new_block.rs:18:13
Dec 12 00:55:55.029 INFO [stderr]    |
Dec 12 00:55:55.029 INFO [stderr] 18 |         let mut nonce: i64 = 0;
Dec 12 00:55:55.029 INFO [stderr]    |             ----^^^^^
Dec 12 00:55:55.029 INFO [stderr]    |             |
Dec 12 00:55:55.029 INFO [stderr]    |             help: remove this `mut`
Dec 12 00:55:55.029 INFO [stderr]    |
Dec 12 00:55:55.043 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 00:55:55.043 INFO [stderr] 
Dec 12 00:55:55.100 INFO [stderr] warning: unused variable: `nonce`
Dec 12 00:55:55.100 INFO [stderr]   --> src/new_block.rs:18:17
Dec 12 00:55:55.100 INFO [stderr]    |
Dec 12 00:55:55.100 INFO [stderr] 18 |         let mut nonce: i64 = 0;
Dec 12 00:55:55.100 INFO [stderr]    |                 ^^^^^ help: consider using `_nonce` instead
Dec 12 00:55:55.100 INFO [stderr]    |
Dec 12 00:55:55.100 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 12 00:55:55.100 INFO [stderr] 
Dec 12 00:55:55.100 INFO [stderr] warning: value assigned to `this_record` is never read
Dec 12 00:55:55.100 INFO [stderr]  --> src/validator.rs:9:13
Dec 12 00:55:55.100 INFO [stderr]   |
Dec 12 00:55:55.100 INFO [stderr] 9 |     let mut this_record = StringRecord::from(vec!["0", "0", "0", "0", "0"]);
Dec 12 00:55:55.100 INFO [stderr]   |             ^^^^^^^^^^^
Dec 12 00:55:55.100 INFO [stderr]   |
Dec 12 00:55:55.100 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Dec 12 00:55:55.100 INFO [stderr] 
Dec 12 00:55:55.160 INFO [stderr] warning: variable does not need to be mutable
Dec 12 00:55:55.160 INFO [stderr]   --> src/new_block.rs:18:13
Dec 12 00:55:55.160 INFO [stderr]    |
Dec 12 00:55:55.160 INFO [stderr] 18 |         let mut nonce: i64 = 0;
Dec 12 00:55:55.160 INFO [stderr]    |             ----^^^^^
Dec 12 00:55:55.160 INFO [stderr]    |             |
Dec 12 00:55:55.160 INFO [stderr]    |             help: remove this `mut`
Dec 12 00:55:55.160 INFO [stderr]    |
Dec 12 00:55:55.160 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 12 00:55:55.160 INFO [stderr] 
Dec 12 00:55:55.276 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.69s
Dec 12 00:55:55.284 INFO [stderr] su: No module specific data is present
Dec 12 00:55:56.556 INFO running `"docker" "inspect" "ae8e647a3e27de869f2e3c4b05f3ec783f584d58a4d22860f16be802cf3f458a"`
Dec 12 00:55:56.930 INFO running `"docker" "rm" "-f" "ae8e647a3e27de869f2e3c4b05f3ec783f584d58a4d22860f16be802cf3f458a"`
Dec 12 00:55:57.280 INFO [stdout] ae8e647a3e27de869f2e3c4b05f3ec783f584d58a4d22860f16be802cf3f458a