Dec 05 14:06:27.509 INFO checking ethash-0.3.1 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 14:06:27.509 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 05 14:06:27.760 INFO [stdout] b5e8b804ad87c9e611f955e2c906b3fd91e9cca13408d2ff9485850fae737ae2
Dec 05 14:06:27.764 INFO running `"docker" "start" "-a" "b5e8b804ad87c9e611f955e2c906b3fd91e9cca13408d2ff9485850fae737ae2"`
Dec 05 14:06:28.639 INFO [stderr] usermod: no changes
Dec 05 14:06:28.734 INFO [stderr]     Checking blockchain v0.1.9
Dec 05 14:06:28.738 INFO [stderr]     Checking ethereum-trie v0.3.8
Dec 05 14:06:28.739 INFO [stderr]     Checking ethereum-block-core v0.1.0
Dec 05 14:06:28.739 INFO [stderr]     Checking ethereum-bloom v0.2.1
Dec 05 14:06:28.739 INFO [stderr]     Checking ethash v0.3.1 (/source)
Dec 05 14:06:32.081 INFO [stderr] warning: unused import: `H1024`
Dec 05 14:06:32.081 INFO [stderr]   --> src/lib.rs:17:14
Dec 05 14:06:32.081 INFO [stderr]    |
Dec 05 14:06:32.081 INFO [stderr] 17 | use bigint::{H1024, U256, H256, H64, H512};
Dec 05 14:06:32.081 INFO [stderr]    |              ^^^^^
Dec 05 14:06:32.081 INFO [stderr]    |
Dec 05 14:06:32.081 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 14:06:32.081 INFO [stderr] 
Dec 05 14:06:32.354 INFO [stderr] warning: unused variable: `a32`
Dec 05 14:06:32.355 INFO [stderr]    --> src/lib.rs:111:13
Dec 05 14:06:32.355 INFO [stderr]     |
Dec 05 14:06:32.355 INFO [stderr] 111 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Dec 05 14:06:32.355 INFO [stderr]     |             ^^^ help: consider using `_a32` instead
Dec 05 14:06:32.355 INFO [stderr]     |
Dec 05 14:06:32.355 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 05 14:06:32.355 INFO [stderr] 
Dec 05 14:06:32.355 INFO [stderr] warning: unused variable: `b32`
Dec 05 14:06:32.355 INFO [stderr]    --> src/lib.rs:112:13
Dec 05 14:06:32.355 INFO [stderr]     |
Dec 05 14:06:32.355 INFO [stderr] 112 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Dec 05 14:06:32.355 INFO [stderr]     |             ^^^ help: consider using `_b32` instead
Dec 05 14:06:32.355 INFO [stderr] 
Dec 05 14:06:32.355 INFO [stderr] warning: unused variable: `a32`
Dec 05 14:06:32.355 INFO [stderr]    --> src/lib.rs:125:13
Dec 05 14:06:32.355 INFO [stderr]     |
Dec 05 14:06:32.355 INFO [stderr] 125 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Dec 05 14:06:32.355 INFO [stderr]     |             ^^^ help: consider using `_a32` instead
Dec 05 14:06:32.355 INFO [stderr] 
Dec 05 14:06:32.355 INFO [stderr] warning: unused variable: `b32`
Dec 05 14:06:32.355 INFO [stderr]    --> src/lib.rs:126:13
Dec 05 14:06:32.355 INFO [stderr]     |
Dec 05 14:06:32.355 INFO [stderr] 126 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Dec 05 14:06:32.355 INFO [stderr]     |             ^^^ help: consider using `_b32` instead
Dec 05 14:06:32.355 INFO [stderr] 
Dec 05 14:06:32.355 INFO [stderr] warning: unused variable: `n`
Dec 05 14:06:32.355 INFO [stderr]    --> src/lib.rs:136:9
Dec 05 14:06:32.355 INFO [stderr]     |
Dec 05 14:06:32.355 INFO [stderr] 136 |     let n = a.len();
Dec 05 14:06:32.355 INFO [stderr]     |         ^ help: consider using `_n` instead
Dec 05 14:06:32.355 INFO [stderr] 
Dec 05 14:06:32.355 INFO [stderr] warning: unused variable: `i`
Dec 05 14:06:32.355 INFO [stderr]    --> src/lib.rs:307:9
Dec 05 14:06:32.355 INFO [stderr]     |
Dec 05 14:06:32.355 INFO [stderr] 307 |     for i in 0..epoch {
Dec 05 14:06:32.355 INFO [stderr]     |         ^ help: consider using `_i` instead
Dec 05 14:06:32.355 INFO [stderr] 
Dec 05 14:06:32.399 INFO [stderr] warning: field is never used: `cache_size`
Dec 05 14:06:32.399 INFO [stderr]   --> src/dag.rs:16:5
Dec 05 14:06:32.399 INFO [stderr]    |
Dec 05 14:06:32.399 INFO [stderr] 16 |     cache_size: usize,
Dec 05 14:06:32.399 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 05 14:06:32.399 INFO [stderr]    |
Dec 05 14:06:32.399 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 14:06:32.399 INFO [stderr] 
Dec 05 14:06:32.399 INFO [stderr] warning: constant item is never used: `CACHE_MULTIPLIER`
Dec 05 14:06:32.399 INFO [stderr]   --> src/lib.rs:26:1
Dec 05 14:06:32.399 INFO [stderr]    |
Dec 05 14:06:32.399 INFO [stderr] 26 | const CACHE_MULTIPLIER: usize = 1024;
Dec 05 14:06:32.399 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:06:32.399 INFO [stderr] 
Dec 05 14:06:32.399 INFO [stderr] warning: constant item is never used: `FNV_PRIME`
Dec 05 14:06:32.399 INFO [stderr]   --> src/lib.rs:99:1
Dec 05 14:06:32.399 INFO [stderr]    |
Dec 05 14:06:32.399 INFO [stderr] 99 | const FNV_PRIME: u32 = 0x01000193;
Dec 05 14:06:32.399 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:06:32.399 INFO [stderr] 
Dec 05 14:06:32.399 INFO [stderr] warning: function is never used: `u8s_to_u32`
Dec 05 14:06:32.399 INFO [stderr]    --> src/lib.rs:135:1
Dec 05 14:06:32.399 INFO [stderr]     |
Dec 05 14:06:32.399 INFO [stderr] 135 | fn u8s_to_u32(a: &[u8]) -> u32 {
Dec 05 14:06:32.399 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:06:32.399 INFO [stderr] 
Dec 05 14:06:32.399 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 14:06:32.399 INFO [stderr]    --> src/lib.rs:114:9
Dec 05 14:06:32.399 INFO [stderr]     |
Dec 05 14:06:32.399 INFO [stderr] 114 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Dec 05 14:06:32.399 INFO [stderr] 115 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Dec 05 14:06:32.399 INFO [stderr] 116 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Dec 05 14:06:32.399 INFO [stderr]     | |________________________________________________________________^
Dec 05 14:06:32.399 INFO [stderr]     |
Dec 05 14:06:32.399 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 14:06:32.399 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 14:06:32.399 INFO [stderr] 
Dec 05 14:06:32.399 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 14:06:32.399 INFO [stderr]    --> src/lib.rs:128:9
Dec 05 14:06:32.399 INFO [stderr]     |
Dec 05 14:06:32.399 INFO [stderr] 128 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Dec 05 14:06:32.399 INFO [stderr] 129 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Dec 05 14:06:32.399 INFO [stderr] 130 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Dec 05 14:06:32.399 INFO [stderr]     | |________________________________________________________________^
Dec 05 14:06:32.399 INFO [stderr]     |
Dec 05 14:06:32.399 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 14:06:32.399 INFO [stderr] 
Dec 05 14:06:32.399 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 14:06:32.399 INFO [stderr]    --> src/lib.rs:152:5
Dec 05 14:06:32.399 INFO [stderr]     |
Dec 05 14:06:32.399 INFO [stderr] 152 |     mix.as_mut().write_u32::<LittleEndian>(mix_first32);
Dec 05 14:06:32.399 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:06:32.399 INFO [stderr]     |
Dec 05 14:06:32.399 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 14:06:32.399 INFO [stderr] 
Dec 05 14:06:32.407 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 14:06:32.407 INFO [stderr]    --> src/lib.rs:230:9
Dec 05 14:06:32.407 INFO [stderr]     |
Dec 05 14:06:32.407 INFO [stderr] 230 |         (&mut cmix[j..]).write_u32::<LittleEndian>(c);
Dec 05 14:06:32.407 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:06:32.407 INFO [stderr]     |
Dec 05 14:06:32.407 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 14:06:32.407 INFO [stderr] 
Dec 05 14:06:32.751 INFO [stderr]     Checking ethereum-block v0.3.5
Dec 05 14:06:36.919 INFO [stderr] warning: unused import: `H1024`
Dec 05 14:06:36.919 INFO [stderr]   --> src/lib.rs:17:14
Dec 05 14:06:36.919 INFO [stderr]    |
Dec 05 14:06:36.919 INFO [stderr] 17 | use bigint::{H1024, U256, H256, H64, H512};
Dec 05 14:06:36.919 INFO [stderr]    |              ^^^^^
Dec 05 14:06:36.919 INFO [stderr]    |
Dec 05 14:06:36.919 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 14:06:36.919 INFO [stderr] 
Dec 05 14:06:37.092 INFO [stderr] warning: unused variable: `a32`
Dec 05 14:06:37.092 INFO [stderr]    --> src/lib.rs:111:13
Dec 05 14:06:37.092 INFO [stderr]     |
Dec 05 14:06:37.092 INFO [stderr] 111 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Dec 05 14:06:37.092 INFO [stderr]     |             ^^^ help: consider using `_a32` instead
Dec 05 14:06:37.092 INFO [stderr]     |
Dec 05 14:06:37.092 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 05 14:06:37.092 INFO [stderr] 
Dec 05 14:06:37.092 INFO [stderr] warning: unused variable: `b32`
Dec 05 14:06:37.092 INFO [stderr]    --> src/lib.rs:112:13
Dec 05 14:06:37.092 INFO [stderr]     |
Dec 05 14:06:37.092 INFO [stderr] 112 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Dec 05 14:06:37.092 INFO [stderr]     |             ^^^ help: consider using `_b32` instead
Dec 05 14:06:37.092 INFO [stderr] 
Dec 05 14:06:37.092 INFO [stderr] warning: unused variable: `a32`
Dec 05 14:06:37.092 INFO [stderr]    --> src/lib.rs:125:13
Dec 05 14:06:37.092 INFO [stderr]     |
Dec 05 14:06:37.092 INFO [stderr] 125 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Dec 05 14:06:37.092 INFO [stderr]     |             ^^^ help: consider using `_a32` instead
Dec 05 14:06:37.092 INFO [stderr] 
Dec 05 14:06:37.092 INFO [stderr] warning: unused variable: `b32`
Dec 05 14:06:37.092 INFO [stderr]    --> src/lib.rs:126:13
Dec 05 14:06:37.092 INFO [stderr]     |
Dec 05 14:06:37.092 INFO [stderr] 126 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Dec 05 14:06:37.092 INFO [stderr]     |             ^^^ help: consider using `_b32` instead
Dec 05 14:06:37.092 INFO [stderr] 
Dec 05 14:06:37.092 INFO [stderr] warning: unused variable: `n`
Dec 05 14:06:37.092 INFO [stderr]    --> src/lib.rs:136:9
Dec 05 14:06:37.092 INFO [stderr]     |
Dec 05 14:06:37.092 INFO [stderr] 136 |     let n = a.len();
Dec 05 14:06:37.092 INFO [stderr]     |         ^ help: consider using `_n` instead
Dec 05 14:06:37.092 INFO [stderr] 
Dec 05 14:06:37.092 INFO [stderr] warning: unused variable: `i`
Dec 05 14:06:37.092 INFO [stderr]    --> src/lib.rs:307:9
Dec 05 14:06:37.092 INFO [stderr]     |
Dec 05 14:06:37.092 INFO [stderr] 307 |     for i in 0..epoch {
Dec 05 14:06:37.092 INFO [stderr]     |         ^ help: consider using `_i` instead
Dec 05 14:06:37.092 INFO [stderr] 
Dec 05 14:06:37.129 INFO [stderr] warning: field is never used: `cache_size`
Dec 05 14:06:37.129 INFO [stderr]   --> src/dag.rs:16:5
Dec 05 14:06:37.129 INFO [stderr]    |
Dec 05 14:06:37.129 INFO [stderr] 16 |     cache_size: usize,
Dec 05 14:06:37.129 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Dec 05 14:06:37.129 INFO [stderr]    |
Dec 05 14:06:37.129 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 05 14:06:37.129 INFO [stderr] 
Dec 05 14:06:37.129 INFO [stderr] warning: constant item is never used: `CACHE_MULTIPLIER`
Dec 05 14:06:37.129 INFO [stderr]   --> src/lib.rs:26:1
Dec 05 14:06:37.129 INFO [stderr]    |
Dec 05 14:06:37.129 INFO [stderr] 26 | const CACHE_MULTIPLIER: usize = 1024;
Dec 05 14:06:37.129 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:06:37.129 INFO [stderr] 
Dec 05 14:06:37.129 INFO [stderr] warning: constant item is never used: `FNV_PRIME`
Dec 05 14:06:37.129 INFO [stderr]   --> src/lib.rs:99:1
Dec 05 14:06:37.129 INFO [stderr]    |
Dec 05 14:06:37.129 INFO [stderr] 99 | const FNV_PRIME: u32 = 0x01000193;
Dec 05 14:06:37.129 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:06:37.129 INFO [stderr] 
Dec 05 14:06:37.129 INFO [stderr] warning: function is never used: `u8s_to_u32`
Dec 05 14:06:37.129 INFO [stderr]    --> src/lib.rs:135:1
Dec 05 14:06:37.129 INFO [stderr]     |
Dec 05 14:06:37.129 INFO [stderr] 135 | fn u8s_to_u32(a: &[u8]) -> u32 {
Dec 05 14:06:37.129 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:06:37.129 INFO [stderr] 
Dec 05 14:06:37.135 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 14:06:37.135 INFO [stderr]    --> src/lib.rs:114:9
Dec 05 14:06:37.135 INFO [stderr]     |
Dec 05 14:06:37.135 INFO [stderr] 114 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Dec 05 14:06:37.135 INFO [stderr] 115 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Dec 05 14:06:37.135 INFO [stderr] 116 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Dec 05 14:06:37.135 INFO [stderr]     | |________________________________________________________________^
Dec 05 14:06:37.135 INFO [stderr]     |
Dec 05 14:06:37.135 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 14:06:37.135 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 14:06:37.135 INFO [stderr] 
Dec 05 14:06:37.135 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 14:06:37.135 INFO [stderr]    --> src/lib.rs:128:9
Dec 05 14:06:37.135 INFO [stderr]     |
Dec 05 14:06:37.135 INFO [stderr] 128 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Dec 05 14:06:37.135 INFO [stderr] 129 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Dec 05 14:06:37.135 INFO [stderr] 130 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Dec 05 14:06:37.135 INFO [stderr]     | |________________________________________________________________^
Dec 05 14:06:37.135 INFO [stderr]     |
Dec 05 14:06:37.135 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 14:06:37.135 INFO [stderr] 
Dec 05 14:06:37.135 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 14:06:37.135 INFO [stderr]    --> src/lib.rs:152:5
Dec 05 14:06:37.135 INFO [stderr]     |
Dec 05 14:06:37.135 INFO [stderr] 152 |     mix.as_mut().write_u32::<LittleEndian>(mix_first32);
Dec 05 14:06:37.135 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:06:37.135 INFO [stderr]     |
Dec 05 14:06:37.135 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 14:06:37.135 INFO [stderr] 
Dec 05 14:06:37.135 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 14:06:37.135 INFO [stderr]    --> src/lib.rs:230:9
Dec 05 14:06:37.135 INFO [stderr]     |
Dec 05 14:06:37.135 INFO [stderr] 230 |         (&mut cmix[j..]).write_u32::<LittleEndian>(c);
Dec 05 14:06:37.135 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:06:37.135 INFO [stderr]     |
Dec 05 14:06:37.135 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 14:06:37.135 INFO [stderr] 
Dec 05 14:06:37.771 INFO [stderr] warning: unused import: `blockchain::chain::HeaderHash`
Dec 05 14:06:37.771 INFO [stderr]   --> tests/headers.rs:13:5
Dec 05 14:06:37.771 INFO [stderr]    |
Dec 05 14:06:37.771 INFO [stderr] 13 | use blockchain::chain::HeaderHash;
Dec 05 14:06:37.771 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 14:06:37.771 INFO [stderr]    |
Dec 05 14:06:37.771 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 05 14:06:37.771 INFO [stderr] 
Dec 05 14:06:37.879 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.22s
Dec 05 14:06:37.884 INFO [stderr] su: No module specific data is present
Dec 05 14:06:38.583 INFO running `"docker" "inspect" "b5e8b804ad87c9e611f955e2c906b3fd91e9cca13408d2ff9485850fae737ae2"`
Dec 05 14:06:38.872 INFO running `"docker" "rm" "-f" "b5e8b804ad87c9e611f955e2c906b3fd91e9cca13408d2ff9485850fae737ae2"`
Dec 05 14:06:39.125 INFO [stdout] b5e8b804ad87c9e611f955e2c906b3fd91e9cca13408d2ff9485850fae737ae2