Sep 10 19:28:58.687 INFO checking ethash-0.3.1 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 19:28:58.687 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 19:28:58.687 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-4/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 19:28:58.863 INFO blam! de6842bb338a9cc5dfaf6a7715c3412716a919570d8d7d0cd931a281e909a400
Sep 10 19:28:58.866 INFO running `"docker" "start" "-a" "de6842bb338a9cc5dfaf6a7715c3412716a919570d8d7d0cd931a281e909a400"`
Sep 10 19:28:59.561 INFO kablam! usermod: no changes
Sep 10 19:28:59.648 INFO kablam!     Checking blockchain v0.1.9
Sep 10 19:28:59.649 INFO kablam!     Checking ethereum-rlp v0.2.3
Sep 10 19:29:00.503 INFO kablam!     Checking ethereum-bigint v0.2.9
Sep 10 19:29:02.874 INFO kablam!     Checking ethereum-trie v0.3.8
Sep 10 19:29:02.874 INFO kablam!     Checking ethereum-bloom v0.2.1
Sep 10 19:29:02.874 INFO kablam!     Checking ethereum-block-core v0.1.0
Sep 10 19:29:02.874 INFO kablam!     Checking ethash v0.3.1 (file:///source)
Sep 10 19:29:04.975 INFO kablam! warning: unused import: `H1024`
Sep 10 19:29:04.975 INFO kablam!   --> src/lib.rs:17:14
Sep 10 19:29:04.975 INFO kablam!    |
Sep 10 19:29:04.975 INFO kablam! 17 | use bigint::{H1024, U256, H256, H64, H512};
Sep 10 19:29:04.975 INFO kablam!    |              ^^^^^
Sep 10 19:29:04.975 INFO kablam!    |
Sep 10 19:29:04.975 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 10 19:29:04.975 INFO kablam! 
Sep 10 19:29:05.300 INFO kablam!     Checking ethereum-block v0.3.5
Sep 10 19:29:05.476 INFO kablam! warning: unused variable: `a32`
Sep 10 19:29:05.476 INFO kablam!    --> src/lib.rs:111:13
Sep 10 19:29:05.476 INFO kablam!     |
Sep 10 19:29:05.476 INFO kablam! 111 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Sep 10 19:29:05.476 INFO kablam!     |             ^^^ help: consider using `_a32` instead
Sep 10 19:29:05.476 INFO kablam!     |
Sep 10 19:29:05.476 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 10 19:29:05.476 INFO kablam! 
Sep 10 19:29:05.476 INFO kablam! warning: unused variable: `b32`
Sep 10 19:29:05.476 INFO kablam!    --> src/lib.rs:112:13
Sep 10 19:29:05.476 INFO kablam!     |
Sep 10 19:29:05.476 INFO kablam! 112 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Sep 10 19:29:05.476 INFO kablam!     |             ^^^ help: consider using `_b32` instead
Sep 10 19:29:05.476 INFO kablam! 
Sep 10 19:29:05.476 INFO kablam! warning: unused variable: `a32`
Sep 10 19:29:05.476 INFO kablam!    --> src/lib.rs:125:13
Sep 10 19:29:05.476 INFO kablam!     |
Sep 10 19:29:05.476 INFO kablam! 125 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Sep 10 19:29:05.476 INFO kablam!     |             ^^^ help: consider using `_a32` instead
Sep 10 19:29:05.476 INFO kablam! 
Sep 10 19:29:05.476 INFO kablam! warning: unused variable: `b32`
Sep 10 19:29:05.476 INFO kablam!    --> src/lib.rs:126:13
Sep 10 19:29:05.476 INFO kablam!     |
Sep 10 19:29:05.476 INFO kablam! 126 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Sep 10 19:29:05.476 INFO kablam!     |             ^^^ help: consider using `_b32` instead
Sep 10 19:29:05.476 INFO kablam! 
Sep 10 19:29:05.476 INFO kablam! warning: unused variable: `n`
Sep 10 19:29:05.476 INFO kablam!    --> src/lib.rs:136:9
Sep 10 19:29:05.476 INFO kablam!     |
Sep 10 19:29:05.476 INFO kablam! 136 |     let n = a.len();
Sep 10 19:29:05.476 INFO kablam!     |         ^ help: consider using `_n` instead
Sep 10 19:29:05.476 INFO kablam! 
Sep 10 19:29:05.477 INFO kablam! warning: unused variable: `i`
Sep 10 19:29:05.477 INFO kablam!    --> src/lib.rs:307:9
Sep 10 19:29:05.477 INFO kablam!     |
Sep 10 19:29:05.477 INFO kablam! 307 |     for i in 0..epoch {
Sep 10 19:29:05.477 INFO kablam!     |         ^ help: consider using `_i` instead
Sep 10 19:29:05.477 INFO kablam! 
Sep 10 19:29:05.605 INFO kablam! warning: field is never used: `cache_size`
Sep 10 19:29:05.605 INFO kablam!   --> src/dag.rs:16:5
Sep 10 19:29:05.605 INFO kablam!    |
Sep 10 19:29:05.605 INFO kablam! 16 |     cache_size: usize,
Sep 10 19:29:05.605 INFO kablam!    |     ^^^^^^^^^^^^^^^^^
Sep 10 19:29:05.605 INFO kablam!    |
Sep 10 19:29:05.605 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 10 19:29:05.605 INFO kablam! 
Sep 10 19:29:05.605 INFO kablam! warning: constant item is never used: `CACHE_MULTIPLIER`
Sep 10 19:29:05.605 INFO kablam!   --> src/lib.rs:26:1
Sep 10 19:29:05.605 INFO kablam!    |
Sep 10 19:29:05.605 INFO kablam! 26 | const CACHE_MULTIPLIER: usize = 1024;
Sep 10 19:29:05.605 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 19:29:05.605 INFO kablam! 
Sep 10 19:29:05.605 INFO kablam! warning: constant item is never used: `FNV_PRIME`
Sep 10 19:29:05.605 INFO kablam!   --> src/lib.rs:99:1
Sep 10 19:29:05.605 INFO kablam!    |
Sep 10 19:29:05.605 INFO kablam! 99 | const FNV_PRIME: u32 = 0x01000193;
Sep 10 19:29:05.605 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 19:29:05.605 INFO kablam! 
Sep 10 19:29:05.605 INFO kablam! warning: function is never used: `u8s_to_u32`
Sep 10 19:29:05.605 INFO kablam!    --> src/lib.rs:135:1
Sep 10 19:29:05.605 INFO kablam!     |
Sep 10 19:29:05.605 INFO kablam! 135 | fn u8s_to_u32(a: &[u8]) -> u32 {
Sep 10 19:29:05.605 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 19:29:05.605 INFO kablam! 
Sep 10 19:29:05.629 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 10 19:29:05.629 INFO kablam!    --> src/lib.rs:114:9
Sep 10 19:29:05.629 INFO kablam!     |
Sep 10 19:29:05.629 INFO kablam! 114 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Sep 10 19:29:05.629 INFO kablam! 115 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Sep 10 19:29:05.629 INFO kablam! 116 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Sep 10 19:29:05.629 INFO kablam!     | |________________________________________________________________^
Sep 10 19:29:05.629 INFO kablam!     |
Sep 10 19:29:05.629 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 10 19:29:05.629 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 10 19:29:05.629 INFO kablam! 
Sep 10 19:29:05.629 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 10 19:29:05.629 INFO kablam!    --> src/lib.rs:128:9
Sep 10 19:29:05.629 INFO kablam!     |
Sep 10 19:29:05.629 INFO kablam! 128 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Sep 10 19:29:05.629 INFO kablam! 129 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Sep 10 19:29:05.629 INFO kablam! 130 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Sep 10 19:29:05.629 INFO kablam!     | |________________________________________________________________^
Sep 10 19:29:05.629 INFO kablam!     |
Sep 10 19:29:05.629 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 10 19:29:05.629 INFO kablam! 
Sep 10 19:29:05.630 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 10 19:29:05.630 INFO kablam!    --> src/lib.rs:152:5
Sep 10 19:29:05.630 INFO kablam!     |
Sep 10 19:29:05.630 INFO kablam! 152 |     mix.as_mut().write_u32::<LittleEndian>(mix_first32);
Sep 10 19:29:05.630 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 19:29:05.630 INFO kablam!     |
Sep 10 19:29:05.630 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 10 19:29:05.630 INFO kablam! 
Sep 10 19:29:05.630 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 10 19:29:05.630 INFO kablam!    --> src/lib.rs:230:9
Sep 10 19:29:05.630 INFO kablam!     |
Sep 10 19:29:05.630 INFO kablam! 230 |         (&mut cmix[j..]).write_u32::<LittleEndian>(c);
Sep 10 19:29:05.630 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 19:29:05.630 INFO kablam!     |
Sep 10 19:29:05.630 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 10 19:29:05.630 INFO kablam! 
Sep 10 19:29:07.494 INFO kablam! warning: unused import: `H1024`
Sep 10 19:29:07.494 INFO kablam!   --> src/lib.rs:17:14
Sep 10 19:29:07.494 INFO kablam!    |
Sep 10 19:29:07.494 INFO kablam! 17 | use bigint::{H1024, U256, H256, H64, H512};
Sep 10 19:29:07.494 INFO kablam!    |              ^^^^^
Sep 10 19:29:07.494 INFO kablam!    |
Sep 10 19:29:07.494 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 10 19:29:07.494 INFO kablam! 
Sep 10 19:29:07.758 INFO kablam! warning: unused variable: `a32`
Sep 10 19:29:07.758 INFO kablam!    --> src/lib.rs:111:13
Sep 10 19:29:07.758 INFO kablam!     |
Sep 10 19:29:07.758 INFO kablam! 111 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Sep 10 19:29:07.758 INFO kablam!     |             ^^^ help: consider using `_a32` instead
Sep 10 19:29:07.758 INFO kablam!     |
Sep 10 19:29:07.758 INFO kablam!     = note: #[warn(unused_variables)] on by default
Sep 10 19:29:07.758 INFO kablam! 
Sep 10 19:29:07.758 INFO kablam! warning: unused variable: `b32`
Sep 10 19:29:07.758 INFO kablam!    --> src/lib.rs:112:13
Sep 10 19:29:07.758 INFO kablam!     |
Sep 10 19:29:07.758 INFO kablam! 112 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Sep 10 19:29:07.758 INFO kablam!     |             ^^^ help: consider using `_b32` instead
Sep 10 19:29:07.758 INFO kablam! 
Sep 10 19:29:07.759 INFO kablam! warning: unused variable: `a32`
Sep 10 19:29:07.759 INFO kablam!    --> src/lib.rs:125:13
Sep 10 19:29:07.759 INFO kablam!     |
Sep 10 19:29:07.759 INFO kablam! 125 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Sep 10 19:29:07.759 INFO kablam!     |             ^^^ help: consider using `_a32` instead
Sep 10 19:29:07.759 INFO kablam! 
Sep 10 19:29:07.759 INFO kablam! warning: unused variable: `b32`
Sep 10 19:29:07.759 INFO kablam!    --> src/lib.rs:126:13
Sep 10 19:29:07.759 INFO kablam!     |
Sep 10 19:29:07.759 INFO kablam! 126 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Sep 10 19:29:07.759 INFO kablam!     |             ^^^ help: consider using `_b32` instead
Sep 10 19:29:07.759 INFO kablam! 
Sep 10 19:29:07.759 INFO kablam! warning: unused variable: `n`
Sep 10 19:29:07.759 INFO kablam!    --> src/lib.rs:136:9
Sep 10 19:29:07.759 INFO kablam!     |
Sep 10 19:29:07.759 INFO kablam! 136 |     let n = a.len();
Sep 10 19:29:07.759 INFO kablam!     |         ^ help: consider using `_n` instead
Sep 10 19:29:07.759 INFO kablam! 
Sep 10 19:29:07.759 INFO kablam! warning: unused variable: `i`
Sep 10 19:29:07.759 INFO kablam!    --> src/lib.rs:307:9
Sep 10 19:29:07.759 INFO kablam!     |
Sep 10 19:29:07.759 INFO kablam! 307 |     for i in 0..epoch {
Sep 10 19:29:07.759 INFO kablam!     |         ^ help: consider using `_i` instead
Sep 10 19:29:07.759 INFO kablam! 
Sep 10 19:29:07.822 INFO kablam! warning: field is never used: `cache_size`
Sep 10 19:29:07.822 INFO kablam!   --> src/dag.rs:16:5
Sep 10 19:29:07.822 INFO kablam!    |
Sep 10 19:29:07.822 INFO kablam! 16 |     cache_size: usize,
Sep 10 19:29:07.822 INFO kablam!    |     ^^^^^^^^^^^^^^^^^
Sep 10 19:29:07.822 INFO kablam!    |
Sep 10 19:29:07.822 INFO kablam!    = note: #[warn(dead_code)] on by default
Sep 10 19:29:07.822 INFO kablam! 
Sep 10 19:29:07.822 INFO kablam! warning: constant item is never used: `CACHE_MULTIPLIER`
Sep 10 19:29:07.822 INFO kablam!   --> src/lib.rs:26:1
Sep 10 19:29:07.822 INFO kablam!    |
Sep 10 19:29:07.822 INFO kablam! 26 | const CACHE_MULTIPLIER: usize = 1024;
Sep 10 19:29:07.822 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 19:29:07.822 INFO kablam! 
Sep 10 19:29:07.822 INFO kablam! warning: constant item is never used: `FNV_PRIME`
Sep 10 19:29:07.822 INFO kablam!   --> src/lib.rs:99:1
Sep 10 19:29:07.822 INFO kablam!    |
Sep 10 19:29:07.822 INFO kablam! 99 | const FNV_PRIME: u32 = 0x01000193;
Sep 10 19:29:07.822 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 19:29:07.822 INFO kablam! 
Sep 10 19:29:07.822 INFO kablam! warning: function is never used: `u8s_to_u32`
Sep 10 19:29:07.822 INFO kablam!    --> src/lib.rs:135:1
Sep 10 19:29:07.822 INFO kablam!     |
Sep 10 19:29:07.822 INFO kablam! 135 | fn u8s_to_u32(a: &[u8]) -> u32 {
Sep 10 19:29:07.822 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 19:29:07.822 INFO kablam! 
Sep 10 19:29:07.822 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 10 19:29:07.822 INFO kablam!    --> src/lib.rs:114:9
Sep 10 19:29:07.822 INFO kablam!     |
Sep 10 19:29:07.822 INFO kablam! 114 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Sep 10 19:29:07.822 INFO kablam! 115 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Sep 10 19:29:07.822 INFO kablam! 116 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Sep 10 19:29:07.822 INFO kablam!     | |________________________________________________________________^
Sep 10 19:29:07.824 INFO kablam!     |
Sep 10 19:29:07.824 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Sep 10 19:29:07.824 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 10 19:29:07.824 INFO kablam! 
Sep 10 19:29:07.824 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 10 19:29:07.824 INFO kablam!    --> src/lib.rs:128:9
Sep 10 19:29:07.824 INFO kablam!     |
Sep 10 19:29:07.824 INFO kablam! 128 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Sep 10 19:29:07.824 INFO kablam! 129 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Sep 10 19:29:07.824 INFO kablam! 130 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Sep 10 19:29:07.824 INFO kablam!     | |________________________________________________________________^
Sep 10 19:29:07.824 INFO kablam!     |
Sep 10 19:29:07.824 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 10 19:29:07.824 INFO kablam! 
Sep 10 19:29:07.824 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 10 19:29:07.824 INFO kablam!    --> src/lib.rs:152:5
Sep 10 19:29:07.824 INFO kablam!     |
Sep 10 19:29:07.824 INFO kablam! 152 |     mix.as_mut().write_u32::<LittleEndian>(mix_first32);
Sep 10 19:29:07.824 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 19:29:07.824 INFO kablam!     |
Sep 10 19:29:07.824 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 10 19:29:07.824 INFO kablam! 
Sep 10 19:29:07.824 INFO kablam! warning: unused `std::result::Result` which must be used
Sep 10 19:29:07.824 INFO kablam!    --> src/lib.rs:230:9
Sep 10 19:29:07.824 INFO kablam!     |
Sep 10 19:29:07.824 INFO kablam! 230 |         (&mut cmix[j..]).write_u32::<LittleEndian>(c);
Sep 10 19:29:07.824 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 19:29:07.824 INFO kablam!     |
Sep 10 19:29:07.824 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Sep 10 19:29:07.824 INFO kablam! 
Sep 10 19:29:07.868 INFO kablam! warning: unused import: `blockchain::chain::HeaderHash`
Sep 10 19:29:07.868 INFO kablam!   --> tests/headers.rs:13:5
Sep 10 19:29:07.868 INFO kablam!    |
Sep 10 19:29:07.868 INFO kablam! 13 | use blockchain::chain::HeaderHash;
Sep 10 19:29:07.868 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Sep 10 19:29:07.868 INFO kablam!    |
Sep 10 19:29:07.868 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 10 19:29:07.868 INFO kablam! 
Sep 10 19:29:07.990 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 8.40s
Sep 10 19:29:07.996 INFO kablam! su: No module specific data is present
Sep 10 19:29:08.459 INFO running `"docker" "rm" "-f" "de6842bb338a9cc5dfaf6a7715c3412716a919570d8d7d0cd931a281e909a400"`
Sep 10 19:29:08.588 INFO blam! de6842bb338a9cc5dfaf6a7715c3412716a919570d8d7d0cd931a281e909a400