Nov 29 01:54:01.312 INFO checking ethash-0.3.1 against master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5 for pr-56074
Nov 29 01:54:01.313 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-5/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56074/master#0b9f19dff1347e29bf4362ab5a8fab84b43023b5:/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 +0b9f19dff1347e29bf4362ab5a8fab84b43023b5-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"`
Nov 29 01:54:01.472 INFO [stdout] 6640333abaea304d6b8cc9204aed6b2dbc5a1db9977d46bd93f91c931581ab74
Nov 29 01:54:01.474 INFO running `"docker" "start" "-a" "6640333abaea304d6b8cc9204aed6b2dbc5a1db9977d46bd93f91c931581ab74"`
Nov 29 01:54:02.311 INFO [stderr] usermod: no changes
Nov 29 01:54:02.468 INFO [stderr]     Checking ethereum-hexutil v0.2.3
Nov 29 01:54:02.480 INFO [stderr]     Checking blockchain v0.1.9
Nov 29 01:54:02.508 INFO [stderr]     Checking sha3 v0.6.0
Nov 29 01:54:02.516 INFO [stderr]     Checking hmac-drbg v0.1.2
Nov 29 01:54:03.756 INFO [stderr]     Checking libsecp256k1 v0.1.15
Nov 29 01:54:03.936 INFO [stderr]     Checking ethereum-rlp v0.2.3
Nov 29 01:54:04.936 INFO [stderr]     Checking ethereum-bigint v0.2.9
Nov 29 01:54:07.728 INFO [stderr]     Checking ethereum-trie v0.3.8
Nov 29 01:54:07.728 INFO [stderr]     Checking ethereum-block-core v0.1.0
Nov 29 01:54:07.728 INFO [stderr]     Checking ethereum-bloom v0.2.1
Nov 29 01:54:07.728 INFO [stderr]     Checking ethash v0.3.1 (/source)
Nov 29 01:54:11.396 INFO [stderr] warning: unused import: `H1024`
Nov 29 01:54:11.396 INFO [stderr]   --> src/lib.rs:17:14
Nov 29 01:54:11.396 INFO [stderr]    |
Nov 29 01:54:11.396 INFO [stderr] 17 | use bigint::{H1024, U256, H256, H64, H512};
Nov 29 01:54:11.396 INFO [stderr]    |              ^^^^^
Nov 29 01:54:11.396 INFO [stderr]    |
Nov 29 01:54:11.396 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 29 01:54:11.396 INFO [stderr] 
Nov 29 01:54:11.596 INFO [stderr] warning: unused variable: `a32`
Nov 29 01:54:11.596 INFO [stderr]    --> src/lib.rs:111:13
Nov 29 01:54:11.596 INFO [stderr]     |
Nov 29 01:54:11.596 INFO [stderr] 111 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Nov 29 01:54:11.596 INFO [stderr]     |             ^^^ help: consider using `_a32` instead
Nov 29 01:54:11.596 INFO [stderr]     |
Nov 29 01:54:11.596 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 29 01:54:11.596 INFO [stderr] 
Nov 29 01:54:11.596 INFO [stderr] warning: unused variable: `b32`
Nov 29 01:54:11.596 INFO [stderr]    --> src/lib.rs:112:13
Nov 29 01:54:11.596 INFO [stderr]     |
Nov 29 01:54:11.596 INFO [stderr] 112 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Nov 29 01:54:11.596 INFO [stderr]     |             ^^^ help: consider using `_b32` instead
Nov 29 01:54:11.596 INFO [stderr] 
Nov 29 01:54:11.596 INFO [stderr] warning: unused variable: `a32`
Nov 29 01:54:11.596 INFO [stderr]    --> src/lib.rs:125:13
Nov 29 01:54:11.596 INFO [stderr]     |
Nov 29 01:54:11.596 INFO [stderr] 125 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Nov 29 01:54:11.596 INFO [stderr]     |             ^^^ help: consider using `_a32` instead
Nov 29 01:54:11.596 INFO [stderr] 
Nov 29 01:54:11.596 INFO [stderr] warning: unused variable: `b32`
Nov 29 01:54:11.596 INFO [stderr]    --> src/lib.rs:126:13
Nov 29 01:54:11.596 INFO [stderr]     |
Nov 29 01:54:11.596 INFO [stderr] 126 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Nov 29 01:54:11.596 INFO [stderr]     |             ^^^ help: consider using `_b32` instead
Nov 29 01:54:11.596 INFO [stderr] 
Nov 29 01:54:11.596 INFO [stderr] warning: unused variable: `n`
Nov 29 01:54:11.596 INFO [stderr]    --> src/lib.rs:136:9
Nov 29 01:54:11.596 INFO [stderr]     |
Nov 29 01:54:11.597 INFO [stderr] 136 |     let n = a.len();
Nov 29 01:54:11.597 INFO [stderr]     |         ^ help: consider using `_n` instead
Nov 29 01:54:11.597 INFO [stderr] 
Nov 29 01:54:11.597 INFO [stderr] warning: unused variable: `i`
Nov 29 01:54:11.597 INFO [stderr]    --> src/lib.rs:307:9
Nov 29 01:54:11.597 INFO [stderr]     |
Nov 29 01:54:11.597 INFO [stderr] 307 |     for i in 0..epoch {
Nov 29 01:54:11.597 INFO [stderr]     |         ^ help: consider using `_i` instead
Nov 29 01:54:11.597 INFO [stderr] 
Nov 29 01:54:11.725 INFO [stderr] warning: field is never used: `cache_size`
Nov 29 01:54:11.725 INFO [stderr]   --> src/dag.rs:16:5
Nov 29 01:54:11.725 INFO [stderr]    |
Nov 29 01:54:11.725 INFO [stderr] 16 |     cache_size: usize,
Nov 29 01:54:11.725 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Nov 29 01:54:11.725 INFO [stderr]    |
Nov 29 01:54:11.725 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 01:54:11.725 INFO [stderr] 
Nov 29 01:54:11.725 INFO [stderr] warning: constant item is never used: `CACHE_MULTIPLIER`
Nov 29 01:54:11.725 INFO [stderr]   --> src/lib.rs:26:1
Nov 29 01:54:11.725 INFO [stderr]    |
Nov 29 01:54:11.725 INFO [stderr] 26 | const CACHE_MULTIPLIER: usize = 1024;
Nov 29 01:54:11.725 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 01:54:11.725 INFO [stderr] 
Nov 29 01:54:11.725 INFO [stderr] warning: constant item is never used: `FNV_PRIME`
Nov 29 01:54:11.725 INFO [stderr]   --> src/lib.rs:99:1
Nov 29 01:54:11.725 INFO [stderr]    |
Nov 29 01:54:11.725 INFO [stderr] 99 | const FNV_PRIME: u32 = 0x01000193;
Nov 29 01:54:11.725 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 01:54:11.725 INFO [stderr] 
Nov 29 01:54:11.725 INFO [stderr] warning: function is never used: `u8s_to_u32`
Nov 29 01:54:11.725 INFO [stderr]    --> src/lib.rs:135:1
Nov 29 01:54:11.725 INFO [stderr]     |
Nov 29 01:54:11.725 INFO [stderr] 135 | fn u8s_to_u32(a: &[u8]) -> u32 {
Nov 29 01:54:11.725 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 01:54:11.725 INFO [stderr] 
Nov 29 01:54:11.740 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 01:54:11.740 INFO [stderr]    --> src/lib.rs:114:9
Nov 29 01:54:11.740 INFO [stderr]     |
Nov 29 01:54:11.740 INFO [stderr] 114 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Nov 29 01:54:11.740 INFO [stderr] 115 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Nov 29 01:54:11.740 INFO [stderr] 116 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Nov 29 01:54:11.740 INFO [stderr]     | |________________________________________________________________^
Nov 29 01:54:11.740 INFO [stderr]     |
Nov 29 01:54:11.740 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 29 01:54:11.740 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 01:54:11.740 INFO [stderr] 
Nov 29 01:54:11.741 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 01:54:11.741 INFO [stderr]    --> src/lib.rs:128:9
Nov 29 01:54:11.741 INFO [stderr]     |
Nov 29 01:54:11.741 INFO [stderr] 128 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Nov 29 01:54:11.741 INFO [stderr] 129 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Nov 29 01:54:11.741 INFO [stderr] 130 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Nov 29 01:54:11.741 INFO [stderr]     | |________________________________________________________________^
Nov 29 01:54:11.741 INFO [stderr]     |
Nov 29 01:54:11.742 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 01:54:11.742 INFO [stderr] 
Nov 29 01:54:11.760 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 01:54:11.760 INFO [stderr]    --> src/lib.rs:152:5
Nov 29 01:54:11.761 INFO [stderr]     |
Nov 29 01:54:11.761 INFO [stderr] 152 |     mix.as_mut().write_u32::<LittleEndian>(mix_first32);
Nov 29 01:54:11.761 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 01:54:11.761 INFO [stderr]     |
Nov 29 01:54:11.761 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 01:54:11.761 INFO [stderr] 
Nov 29 01:54:11.762 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 01:54:11.762 INFO [stderr]    --> src/lib.rs:230:9
Nov 29 01:54:11.762 INFO [stderr]     |
Nov 29 01:54:11.762 INFO [stderr] 230 |         (&mut cmix[j..]).write_u32::<LittleEndian>(c);
Nov 29 01:54:11.762 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 01:54:11.762 INFO [stderr]     |
Nov 29 01:54:11.762 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 01:54:11.762 INFO [stderr] 
Nov 29 01:54:19.754 INFO [stderr]     Checking ethereum-block v0.3.5
Nov 29 01:54:24.176 INFO [stderr] warning: unused import: `H1024`
Nov 29 01:54:24.176 INFO [stderr]   --> src/lib.rs:17:14
Nov 29 01:54:24.176 INFO [stderr]    |
Nov 29 01:54:24.176 INFO [stderr] 17 | use bigint::{H1024, U256, H256, H64, H512};
Nov 29 01:54:24.176 INFO [stderr]    |              ^^^^^
Nov 29 01:54:24.176 INFO [stderr]    |
Nov 29 01:54:24.176 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 29 01:54:24.176 INFO [stderr] 
Nov 29 01:54:24.552 INFO [stderr] warning: unused variable: `a32`
Nov 29 01:54:24.552 INFO [stderr]    --> src/lib.rs:111:13
Nov 29 01:54:24.552 INFO [stderr]     |
Nov 29 01:54:24.552 INFO [stderr] 111 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Nov 29 01:54:24.552 INFO [stderr]     |             ^^^ help: consider using `_a32` instead
Nov 29 01:54:24.552 INFO [stderr]     |
Nov 29 01:54:24.552 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Nov 29 01:54:24.552 INFO [stderr] 
Nov 29 01:54:24.552 INFO [stderr] warning: unused variable: `b32`
Nov 29 01:54:24.552 INFO [stderr]    --> src/lib.rs:112:13
Nov 29 01:54:24.552 INFO [stderr]     |
Nov 29 01:54:24.552 INFO [stderr] 112 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Nov 29 01:54:24.552 INFO [stderr]     |             ^^^ help: consider using `_b32` instead
Nov 29 01:54:24.552 INFO [stderr] 
Nov 29 01:54:24.552 INFO [stderr] warning: unused variable: `a32`
Nov 29 01:54:24.552 INFO [stderr]    --> src/lib.rs:125:13
Nov 29 01:54:24.552 INFO [stderr]     |
Nov 29 01:54:24.552 INFO [stderr] 125 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Nov 29 01:54:24.552 INFO [stderr]     |             ^^^ help: consider using `_a32` instead
Nov 29 01:54:24.552 INFO [stderr] 
Nov 29 01:54:24.552 INFO [stderr] warning: unused variable: `b32`
Nov 29 01:54:24.552 INFO [stderr]    --> src/lib.rs:126:13
Nov 29 01:54:24.552 INFO [stderr]     |
Nov 29 01:54:24.552 INFO [stderr] 126 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Nov 29 01:54:24.552 INFO [stderr]     |             ^^^ help: consider using `_b32` instead
Nov 29 01:54:24.552 INFO [stderr] 
Nov 29 01:54:24.552 INFO [stderr] warning: unused variable: `n`
Nov 29 01:54:24.552 INFO [stderr]    --> src/lib.rs:136:9
Nov 29 01:54:24.552 INFO [stderr]     |
Nov 29 01:54:24.552 INFO [stderr] 136 |     let n = a.len();
Nov 29 01:54:24.552 INFO [stderr]     |         ^ help: consider using `_n` instead
Nov 29 01:54:24.552 INFO [stderr] 
Nov 29 01:54:24.552 INFO [stderr] warning: unused variable: `i`
Nov 29 01:54:24.552 INFO [stderr]    --> src/lib.rs:307:9
Nov 29 01:54:24.552 INFO [stderr]     |
Nov 29 01:54:24.552 INFO [stderr] 307 |     for i in 0..epoch {
Nov 29 01:54:24.552 INFO [stderr]     |         ^ help: consider using `_i` instead
Nov 29 01:54:24.552 INFO [stderr] 
Nov 29 01:54:24.612 INFO [stderr] warning: field is never used: `cache_size`
Nov 29 01:54:24.612 INFO [stderr]   --> src/dag.rs:16:5
Nov 29 01:54:24.612 INFO [stderr]    |
Nov 29 01:54:24.612 INFO [stderr] 16 |     cache_size: usize,
Nov 29 01:54:24.612 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^
Nov 29 01:54:24.612 INFO [stderr]    |
Nov 29 01:54:24.612 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 29 01:54:24.612 INFO [stderr] 
Nov 29 01:54:24.612 INFO [stderr] warning: constant item is never used: `CACHE_MULTIPLIER`
Nov 29 01:54:24.612 INFO [stderr]   --> src/lib.rs:26:1
Nov 29 01:54:24.612 INFO [stderr]    |
Nov 29 01:54:24.612 INFO [stderr] 26 | const CACHE_MULTIPLIER: usize = 1024;
Nov 29 01:54:24.612 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 01:54:24.612 INFO [stderr] 
Nov 29 01:54:24.612 INFO [stderr] warning: constant item is never used: `FNV_PRIME`
Nov 29 01:54:24.612 INFO [stderr]   --> src/lib.rs:99:1
Nov 29 01:54:24.612 INFO [stderr]    |
Nov 29 01:54:24.612 INFO [stderr] 99 | const FNV_PRIME: u32 = 0x01000193;
Nov 29 01:54:24.612 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 01:54:24.612 INFO [stderr] 
Nov 29 01:54:24.612 INFO [stderr] warning: function is never used: `u8s_to_u32`
Nov 29 01:54:24.612 INFO [stderr]    --> src/lib.rs:135:1
Nov 29 01:54:24.612 INFO [stderr]     |
Nov 29 01:54:24.612 INFO [stderr] 135 | fn u8s_to_u32(a: &[u8]) -> u32 {
Nov 29 01:54:24.612 INFO [stderr]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 01:54:24.612 INFO [stderr] 
Nov 29 01:54:24.612 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 01:54:24.612 INFO [stderr]    --> src/lib.rs:114:9
Nov 29 01:54:24.612 INFO [stderr]     |
Nov 29 01:54:24.612 INFO [stderr] 114 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Nov 29 01:54:24.612 INFO [stderr] 115 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Nov 29 01:54:24.612 INFO [stderr] 116 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Nov 29 01:54:24.612 INFO [stderr]     | |________________________________________________________________^
Nov 29 01:54:24.612 INFO [stderr]     |
Nov 29 01:54:24.612 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Nov 29 01:54:24.612 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 01:54:24.612 INFO [stderr] 
Nov 29 01:54:24.612 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 01:54:24.612 INFO [stderr]    --> src/lib.rs:128:9
Nov 29 01:54:24.612 INFO [stderr]     |
Nov 29 01:54:24.612 INFO [stderr] 128 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Nov 29 01:54:24.612 INFO [stderr] 129 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Nov 29 01:54:24.612 INFO [stderr] 130 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Nov 29 01:54:24.612 INFO [stderr]     | |________________________________________________________________^
Nov 29 01:54:24.613 INFO [stderr]     |
Nov 29 01:54:24.613 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 01:54:24.613 INFO [stderr] 
Nov 29 01:54:24.613 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 01:54:24.613 INFO [stderr]    --> src/lib.rs:152:5
Nov 29 01:54:24.613 INFO [stderr]     |
Nov 29 01:54:24.613 INFO [stderr] 152 |     mix.as_mut().write_u32::<LittleEndian>(mix_first32);
Nov 29 01:54:24.613 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 01:54:24.613 INFO [stderr]     |
Nov 29 01:54:24.613 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 01:54:24.613 INFO [stderr] 
Nov 29 01:54:24.613 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 01:54:24.613 INFO [stderr]    --> src/lib.rs:230:9
Nov 29 01:54:24.613 INFO [stderr]     |
Nov 29 01:54:24.613 INFO [stderr] 230 |         (&mut cmix[j..]).write_u32::<LittleEndian>(c);
Nov 29 01:54:24.613 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 01:54:24.613 INFO [stderr]     |
Nov 29 01:54:24.613 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 01:54:24.613 INFO [stderr] 
Nov 29 01:54:24.681 INFO [stderr] warning: unused import: `blockchain::chain::HeaderHash`
Nov 29 01:54:24.681 INFO [stderr]   --> tests/headers.rs:13:5
Nov 29 01:54:24.681 INFO [stderr]    |
Nov 29 01:54:24.681 INFO [stderr] 13 | use blockchain::chain::HeaderHash;
Nov 29 01:54:24.681 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 01:54:24.681 INFO [stderr]    |
Nov 29 01:54:24.681 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Nov 29 01:54:24.681 INFO [stderr] 
Nov 29 01:54:24.824 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.48s
Nov 29 01:54:24.832 INFO [stderr] su: No module specific data is present
Nov 29 01:54:25.450 INFO running `"docker" "inspect" "6640333abaea304d6b8cc9204aed6b2dbc5a1db9977d46bd93f91c931581ab74"`
Nov 29 01:54:25.644 INFO running `"docker" "rm" "-f" "6640333abaea304d6b8cc9204aed6b2dbc5a1db9977d46bd93f91c931581ab74"`
Nov 29 01:54:25.983 INFO [stdout] 6640333abaea304d6b8cc9204aed6b2dbc5a1db9977d46bd93f91c931581ab74