Oct 13 15:35:01.629 INFO checking ethash-0.3.1 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 15:35:01.629 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-3/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-3/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 15:35:01.944 INFO blam! ef81262562e194a4a38a21c138743e6f1dd5d037d98b0daa979c0e8598e80f81
Oct 13 15:35:01.945 INFO running `"docker" "start" "-a" "ef81262562e194a4a38a21c138743e6f1dd5d037d98b0daa979c0e8598e80f81"`
Oct 13 15:35:02.576 INFO kablam! usermod: no changes
Oct 13 15:35:02.673 INFO kablam!     Checking ethereum-hexutil v0.2.3
Oct 13 15:35:02.674 INFO kablam!     Checking blockchain v0.1.9
Oct 13 15:35:02.682 INFO kablam!     Checking sha3 v0.6.0
Oct 13 15:35:02.682 INFO kablam!     Checking libsecp256k1 v0.1.14
Oct 13 15:35:03.696 INFO kablam!     Checking ethereum-rlp v0.2.3
Oct 13 15:35:06.136 INFO kablam!     Checking ethereum-bigint v0.2.9
Oct 13 15:35:09.296 INFO kablam!     Checking ethereum-trie v0.3.8
Oct 13 15:35:09.296 INFO kablam!     Checking ethereum-block-core v0.1.0
Oct 13 15:35:09.296 INFO kablam!     Checking ethereum-bloom v0.2.1
Oct 13 15:35:09.296 INFO kablam!     Checking ethash v0.3.1 (/source)
Oct 13 15:35:13.600 INFO kablam! warning: unused import: `H1024`
Oct 13 15:35:13.600 INFO kablam!   --> src/lib.rs:17:14
Oct 13 15:35:13.600 INFO kablam!    |
Oct 13 15:35:13.600 INFO kablam! 17 | use bigint::{H1024, U256, H256, H64, H512};
Oct 13 15:35:13.601 INFO kablam!    |              ^^^^^
Oct 13 15:35:13.601 INFO kablam!    |
Oct 13 15:35:13.601 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 13 15:35:13.601 INFO kablam! 
Oct 13 15:35:14.417 INFO kablam! warning: unused variable: `a32`
Oct 13 15:35:14.417 INFO kablam!    --> src/lib.rs:111:13
Oct 13 15:35:14.418 INFO kablam!     |
Oct 13 15:35:14.418 INFO kablam! 111 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Oct 13 15:35:14.418 INFO kablam!     |             ^^^ help: consider using `_a32` instead
Oct 13 15:35:14.418 INFO kablam!     |
Oct 13 15:35:14.418 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 13 15:35:14.418 INFO kablam! 
Oct 13 15:35:14.418 INFO kablam! warning: unused variable: `b32`
Oct 13 15:35:14.418 INFO kablam!    --> src/lib.rs:112:13
Oct 13 15:35:14.418 INFO kablam!     |
Oct 13 15:35:14.418 INFO kablam! 112 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Oct 13 15:35:14.418 INFO kablam!     |             ^^^ help: consider using `_b32` instead
Oct 13 15:35:14.418 INFO kablam! 
Oct 13 15:35:14.419 INFO kablam! warning: unused variable: `a32`
Oct 13 15:35:14.419 INFO kablam!    --> src/lib.rs:125:13
Oct 13 15:35:14.419 INFO kablam!     |
Oct 13 15:35:14.419 INFO kablam! 125 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Oct 13 15:35:14.419 INFO kablam!     |             ^^^ help: consider using `_a32` instead
Oct 13 15:35:14.419 INFO kablam! 
Oct 13 15:35:14.419 INFO kablam! warning: unused variable: `b32`
Oct 13 15:35:14.419 INFO kablam!    --> src/lib.rs:126:13
Oct 13 15:35:14.419 INFO kablam!     |
Oct 13 15:35:14.419 INFO kablam! 126 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Oct 13 15:35:14.419 INFO kablam!     |             ^^^ help: consider using `_b32` instead
Oct 13 15:35:14.419 INFO kablam! 
Oct 13 15:35:14.420 INFO kablam! warning: unused variable: `n`
Oct 13 15:35:14.420 INFO kablam!    --> src/lib.rs:136:9
Oct 13 15:35:14.420 INFO kablam!     |
Oct 13 15:35:14.420 INFO kablam! 136 |     let n = a.len();
Oct 13 15:35:14.420 INFO kablam!     |         ^ help: consider using `_n` instead
Oct 13 15:35:14.420 INFO kablam! 
Oct 13 15:35:14.421 INFO kablam! warning: unused variable: `i`
Oct 13 15:35:14.421 INFO kablam!    --> src/lib.rs:307:9
Oct 13 15:35:14.421 INFO kablam!     |
Oct 13 15:35:14.421 INFO kablam! 307 |     for i in 0..epoch {
Oct 13 15:35:14.421 INFO kablam!     |         ^ help: consider using `_i` instead
Oct 13 15:35:14.421 INFO kablam! 
Oct 13 15:35:14.546 INFO kablam! warning: field is never used: `cache_size`
Oct 13 15:35:14.546 INFO kablam!   --> src/dag.rs:16:5
Oct 13 15:35:14.547 INFO kablam!    |
Oct 13 15:35:14.547 INFO kablam! 16 |     cache_size: usize,
Oct 13 15:35:14.547 INFO kablam!    |     ^^^^^^^^^^^^^^^^^
Oct 13 15:35:14.568 INFO kablam!    |
Oct 13 15:35:14.568 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 13 15:35:14.569 INFO kablam! 
Oct 13 15:35:14.569 INFO kablam! warning: constant item is never used: `CACHE_MULTIPLIER`
Oct 13 15:35:14.569 INFO kablam!   --> src/lib.rs:26:1
Oct 13 15:35:14.569 INFO kablam!    |
Oct 13 15:35:14.569 INFO kablam! 26 | const CACHE_MULTIPLIER: usize = 1024;
Oct 13 15:35:14.569 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 15:35:14.569 INFO kablam! 
Oct 13 15:35:14.570 INFO kablam! warning: constant item is never used: `FNV_PRIME`
Oct 13 15:35:14.570 INFO kablam!   --> src/lib.rs:99:1
Oct 13 15:35:14.570 INFO kablam!    |
Oct 13 15:35:14.570 INFO kablam! 99 | const FNV_PRIME: u32 = 0x01000193;
Oct 13 15:35:14.570 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 15:35:14.570 INFO kablam! 
Oct 13 15:35:14.571 INFO kablam! warning: function is never used: `u8s_to_u32`
Oct 13 15:35:14.571 INFO kablam!    --> src/lib.rs:135:1
Oct 13 15:35:14.571 INFO kablam!     |
Oct 13 15:35:14.571 INFO kablam! 135 | fn u8s_to_u32(a: &[u8]) -> u32 {
Oct 13 15:35:14.571 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 15:35:14.571 INFO kablam! 
Oct 13 15:35:14.573 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 15:35:14.573 INFO kablam!    --> src/lib.rs:114:9
Oct 13 15:35:14.573 INFO kablam!     |
Oct 13 15:35:14.573 INFO kablam! 114 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Oct 13 15:35:14.573 INFO kablam! 115 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Oct 13 15:35:14.573 INFO kablam! 116 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Oct 13 15:35:14.574 INFO kablam!     | |________________________________________________________________^
Oct 13 15:35:14.574 INFO kablam!     |
Oct 13 15:35:14.574 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 13 15:35:14.574 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 15:35:14.574 INFO kablam! 
Oct 13 15:35:14.574 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 15:35:14.575 INFO kablam!    --> src/lib.rs:128:9
Oct 13 15:35:14.575 INFO kablam!     |
Oct 13 15:35:14.575 INFO kablam! 128 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Oct 13 15:35:14.575 INFO kablam! 129 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Oct 13 15:35:14.575 INFO kablam! 130 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Oct 13 15:35:14.575 INFO kablam!     | |________________________________________________________________^
Oct 13 15:35:14.576 INFO kablam!     |
Oct 13 15:35:14.576 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 15:35:14.576 INFO kablam! 
Oct 13 15:35:14.576 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 15:35:14.576 INFO kablam!    --> src/lib.rs:152:5
Oct 13 15:35:14.576 INFO kablam!     |
Oct 13 15:35:14.577 INFO kablam! 152 |     mix.as_mut().write_u32::<LittleEndian>(mix_first32);
Oct 13 15:35:14.577 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 15:35:14.577 INFO kablam!     |
Oct 13 15:35:14.577 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 15:35:14.577 INFO kablam! 
Oct 13 15:35:14.577 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 15:35:14.577 INFO kablam!    --> src/lib.rs:230:9
Oct 13 15:35:14.578 INFO kablam!     |
Oct 13 15:35:14.578 INFO kablam! 230 |         (&mut cmix[j..]).write_u32::<LittleEndian>(c);
Oct 13 15:35:14.578 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 15:35:14.578 INFO kablam!     |
Oct 13 15:35:14.578 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 15:35:14.578 INFO kablam! 
Oct 13 15:35:23.656 INFO kablam!     Checking ethereum-block v0.3.5
Oct 13 15:35:27.700 INFO kablam! warning: unused import: `H1024`
Oct 13 15:35:27.700 INFO kablam!   --> src/lib.rs:17:14
Oct 13 15:35:27.700 INFO kablam!    |
Oct 13 15:35:27.700 INFO kablam! 17 | use bigint::{H1024, U256, H256, H64, H512};
Oct 13 15:35:27.700 INFO kablam!    |              ^^^^^
Oct 13 15:35:27.700 INFO kablam!    |
Oct 13 15:35:27.700 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 13 15:35:27.700 INFO kablam! 
Oct 13 15:35:28.056 INFO kablam! warning: unused variable: `a32`
Oct 13 15:35:28.056 INFO kablam!    --> src/lib.rs:111:13
Oct 13 15:35:28.056 INFO kablam!     |
Oct 13 15:35:28.057 INFO kablam! 111 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Oct 13 15:35:28.057 INFO kablam!     |             ^^^ help: consider using `_a32` instead
Oct 13 15:35:28.057 INFO kablam!     |
Oct 13 15:35:28.057 INFO kablam!     = note: #[warn(unused_variables)] on by default
Oct 13 15:35:28.057 INFO kablam! 
Oct 13 15:35:28.057 INFO kablam! warning: unused variable: `b32`
Oct 13 15:35:28.057 INFO kablam!    --> src/lib.rs:112:13
Oct 13 15:35:28.057 INFO kablam!     |
Oct 13 15:35:28.057 INFO kablam! 112 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Oct 13 15:35:28.057 INFO kablam!     |             ^^^ help: consider using `_b32` instead
Oct 13 15:35:28.057 INFO kablam! 
Oct 13 15:35:28.057 INFO kablam! warning: unused variable: `a32`
Oct 13 15:35:28.057 INFO kablam!    --> src/lib.rs:125:13
Oct 13 15:35:28.057 INFO kablam!     |
Oct 13 15:35:28.057 INFO kablam! 125 |         let a32 = (&a[j..]).read_u32::<LittleEndian>().unwrap();
Oct 13 15:35:28.057 INFO kablam!     |             ^^^ help: consider using `_a32` instead
Oct 13 15:35:28.057 INFO kablam! 
Oct 13 15:35:28.057 INFO kablam! warning: unused variable: `b32`
Oct 13 15:35:28.057 INFO kablam!    --> src/lib.rs:126:13
Oct 13 15:35:28.057 INFO kablam!     |
Oct 13 15:35:28.057 INFO kablam! 126 |         let b32 = (&b[j..]).read_u32::<LittleEndian>().unwrap();
Oct 13 15:35:28.057 INFO kablam!     |             ^^^ help: consider using `_b32` instead
Oct 13 15:35:28.057 INFO kablam! 
Oct 13 15:35:28.057 INFO kablam! warning: unused variable: `n`
Oct 13 15:35:28.057 INFO kablam!    --> src/lib.rs:136:9
Oct 13 15:35:28.057 INFO kablam!     |
Oct 13 15:35:28.057 INFO kablam! 136 |     let n = a.len();
Oct 13 15:35:28.057 INFO kablam!     |         ^ help: consider using `_n` instead
Oct 13 15:35:28.057 INFO kablam! 
Oct 13 15:35:28.057 INFO kablam! warning: unused variable: `i`
Oct 13 15:35:28.057 INFO kablam!    --> src/lib.rs:307:9
Oct 13 15:35:28.057 INFO kablam!     |
Oct 13 15:35:28.057 INFO kablam! 307 |     for i in 0..epoch {
Oct 13 15:35:28.057 INFO kablam!     |         ^ help: consider using `_i` instead
Oct 13 15:35:28.057 INFO kablam! 
Oct 13 15:35:28.108 INFO kablam! warning: field is never used: `cache_size`
Oct 13 15:35:28.108 INFO kablam!   --> src/dag.rs:16:5
Oct 13 15:35:28.108 INFO kablam!    |
Oct 13 15:35:28.108 INFO kablam! 16 |     cache_size: usize,
Oct 13 15:35:28.108 INFO kablam!    |     ^^^^^^^^^^^^^^^^^
Oct 13 15:35:28.108 INFO kablam!    |
Oct 13 15:35:28.108 INFO kablam!    = note: #[warn(dead_code)] on by default
Oct 13 15:35:28.108 INFO kablam! 
Oct 13 15:35:28.108 INFO kablam! warning: constant item is never used: `CACHE_MULTIPLIER`
Oct 13 15:35:28.108 INFO kablam!   --> src/lib.rs:26:1
Oct 13 15:35:28.108 INFO kablam!    |
Oct 13 15:35:28.108 INFO kablam! 26 | const CACHE_MULTIPLIER: usize = 1024;
Oct 13 15:35:28.108 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 15:35:28.108 INFO kablam! 
Oct 13 15:35:28.108 INFO kablam! warning: constant item is never used: `FNV_PRIME`
Oct 13 15:35:28.108 INFO kablam!   --> src/lib.rs:99:1
Oct 13 15:35:28.108 INFO kablam!    |
Oct 13 15:35:28.108 INFO kablam! 99 | const FNV_PRIME: u32 = 0x01000193;
Oct 13 15:35:28.108 INFO kablam!    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 15:35:28.108 INFO kablam! 
Oct 13 15:35:28.108 INFO kablam! warning: function is never used: `u8s_to_u32`
Oct 13 15:35:28.108 INFO kablam!    --> src/lib.rs:135:1
Oct 13 15:35:28.108 INFO kablam!     |
Oct 13 15:35:28.108 INFO kablam! 135 | fn u8s_to_u32(a: &[u8]) -> u32 {
Oct 13 15:35:28.108 INFO kablam!     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 15:35:28.108 INFO kablam! 
Oct 13 15:35:28.112 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 15:35:28.112 INFO kablam!    --> src/lib.rs:114:9
Oct 13 15:35:28.112 INFO kablam!     |
Oct 13 15:35:28.112 INFO kablam! 114 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Oct 13 15:35:28.112 INFO kablam! 115 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Oct 13 15:35:28.112 INFO kablam! 116 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Oct 13 15:35:28.112 INFO kablam!     | |________________________________________________________________^
Oct 13 15:35:28.112 INFO kablam!     |
Oct 13 15:35:28.112 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 13 15:35:28.112 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 15:35:28.112 INFO kablam! 
Oct 13 15:35:28.112 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 15:35:28.112 INFO kablam!    --> src/lib.rs:128:9
Oct 13 15:35:28.112 INFO kablam!     |
Oct 13 15:35:28.112 INFO kablam! 128 | /         (&mut r[j..]).write_u32::<LittleEndian>(
Oct 13 15:35:28.112 INFO kablam! 129 | |             fnv((&a[j..]).read_u32::<LittleEndian>().unwrap(),
Oct 13 15:35:28.112 INFO kablam! 130 | |                 (&b[j..]).read_u32::<LittleEndian>().unwrap()));
Oct 13 15:35:28.112 INFO kablam!     | |________________________________________________________________^
Oct 13 15:35:28.112 INFO kablam!     |
Oct 13 15:35:28.112 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 15:35:28.112 INFO kablam! 
Oct 13 15:35:28.112 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 15:35:28.112 INFO kablam!    --> src/lib.rs:152:5
Oct 13 15:35:28.112 INFO kablam!     |
Oct 13 15:35:28.112 INFO kablam! 152 |     mix.as_mut().write_u32::<LittleEndian>(mix_first32);
Oct 13 15:35:28.112 INFO kablam!     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 15:35:28.113 INFO kablam!     |
Oct 13 15:35:28.113 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 15:35:28.113 INFO kablam! 
Oct 13 15:35:28.113 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 15:35:28.113 INFO kablam!    --> src/lib.rs:230:9
Oct 13 15:35:28.113 INFO kablam!     |
Oct 13 15:35:28.113 INFO kablam! 230 |         (&mut cmix[j..]).write_u32::<LittleEndian>(c);
Oct 13 15:35:28.113 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 15:35:28.113 INFO kablam!     |
Oct 13 15:35:28.113 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 15:35:28.113 INFO kablam! 
Oct 13 15:35:29.168 INFO kablam! warning: unused import: `blockchain::chain::HeaderHash`
Oct 13 15:35:29.169 INFO kablam!   --> tests/headers.rs:13:5
Oct 13 15:35:29.169 INFO kablam!    |
Oct 13 15:35:29.169 INFO kablam! 13 | use blockchain::chain::HeaderHash;
Oct 13 15:35:29.169 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 15:35:29.170 INFO kablam!    |
Oct 13 15:35:29.170 INFO kablam!    = note: #[warn(unused_imports)] on by default
Oct 13 15:35:29.170 INFO kablam! 
Oct 13 15:35:29.314 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 26.72s
Oct 13 15:35:29.328 INFO kablam! su: No module specific data is present
Oct 13 15:35:30.073 INFO running `"docker" "rm" "-f" "ef81262562e194a4a38a21c138743e6f1dd5d037d98b0daa979c0e8598e80f81"`
Oct 13 15:35:30.392 INFO blam! ef81262562e194a4a38a21c138743e6f1dd5d037d98b0daa979c0e8598e80f81