Dec 18 13:26:13.943 INFO checking off_blockway-0.0.8 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 13:26:13.943 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/off_blockway/0.0.8:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 13:26:14.578 INFO [stdout] 02cd5d65e01704d05705377de4d2044b007ab7f4748fe9a7676f4488a26d02bb
Dec 18 13:26:14.580 INFO running `"docker" "start" "-a" "02cd5d65e01704d05705377de4d2044b007ab7f4748fe9a7676f4488a26d02bb"`
Dec 18 13:26:16.180 INFO [stderr]     Checking block-buffer v0.2.0
Dec 18 13:26:16.538 INFO [stderr]     Checking sha3 v0.6.0
Dec 18 13:26:17.036 INFO [stderr]     Checking off_blockway v0.0.8 (/opt/crater/workdir)
Dec 18 13:26:17.668 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 18 13:26:17.668 INFO [stderr]    --> src/block.rs:140:13
Dec 18 13:26:17.668 INFO [stderr]     |
Dec 18 13:26:17.668 INFO [stderr] 140 |         Ok( ( json ) )
Dec 18 13:26:17.668 INFO [stderr]     |             ^^^^^^^^ help: remove these parentheses
Dec 18 13:26:17.668 INFO [stderr]     |
Dec 18 13:26:17.668 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 18 13:26:17.668 INFO [stderr] 
Dec 18 13:26:17.684 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 18 13:26:17.684 INFO [stderr]    --> src/merkle.rs:516:13
Dec 18 13:26:17.684 INFO [stderr]     |
Dec 18 13:26:17.684 INFO [stderr] 516 |         Ok( ( json ) )
Dec 18 13:26:17.684 INFO [stderr]     |             ^^^^^^^^ help: remove these parentheses
Dec 18 13:26:17.684 INFO [stderr] 
Dec 18 13:26:17.839 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 18 13:26:17.839 INFO [stderr]    --> src/block.rs:140:13
Dec 18 13:26:17.839 INFO [stderr]     |
Dec 18 13:26:17.839 INFO [stderr] 140 |         Ok( ( json ) )
Dec 18 13:26:17.839 INFO [stderr]     |             ^^^^^^^^ help: remove these parentheses
Dec 18 13:26:17.839 INFO [stderr]     |
Dec 18 13:26:17.840 INFO [stderr]     = note: #[warn(unused_parens)] on by default
Dec 18 13:26:17.840 INFO [stderr] 
Dec 18 13:26:17.841 INFO [stderr] warning: unnecessary parentheses around function argument
Dec 18 13:26:17.841 INFO [stderr]    --> src/merkle.rs:516:13
Dec 18 13:26:17.848 INFO [stderr]     |
Dec 18 13:26:17.848 INFO [stderr] 516 |         Ok( ( json ) )
Dec 18 13:26:17.848 INFO [stderr]     |             ^^^^^^^^ help: remove these parentheses
Dec 18 13:26:17.848 INFO [stderr] 
Dec 18 13:26:18.441 INFO [stderr] warning: unused variable: `value`
Dec 18 13:26:18.441 INFO [stderr]    --> src/lib.rs:100:13
Dec 18 13:26:18.441 INFO [stderr]     |
Dec 18 13:26:18.441 INFO [stderr] 100 |         let value: u8 = 9;
Dec 18 13:26:18.441 INFO [stderr]     |             ^^^^^ help: consider using `_value` instead
Dec 18 13:26:18.441 INFO [stderr]     |
Dec 18 13:26:18.441 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 18 13:26:18.441 INFO [stderr] 
Dec 18 13:26:18.441 INFO [stderr] warning: unused variable: `left_value`
Dec 18 13:26:18.441 INFO [stderr]    --> src/lib.rs:122:13
Dec 18 13:26:18.441 INFO [stderr]     |
Dec 18 13:26:18.441 INFO [stderr] 122 |         let left_value: u8 = 0;
Dec 18 13:26:18.441 INFO [stderr]     |             ^^^^^^^^^^ help: consider using `_left_value` instead
Dec 18 13:26:18.441 INFO [stderr] 
Dec 18 13:26:18.441 INFO [stderr] warning: unused variable: `right_value`
Dec 18 13:26:18.441 INFO [stderr]    --> src/lib.rs:123:13
Dec 18 13:26:18.441 INFO [stderr]     |
Dec 18 13:26:18.441 INFO [stderr] 123 |         let right_value: u8 = 1;
Dec 18 13:26:18.441 INFO [stderr]     |             ^^^^^^^^^^^ help: consider using `_right_value` instead
Dec 18 13:26:18.441 INFO [stderr] 
Dec 18 13:26:18.441 INFO [stderr] warning: unused variable: `status`
Dec 18 13:26:18.441 INFO [stderr]    --> src/lib.rs:212:13
Dec 18 13:26:18.441 INFO [stderr]     |
Dec 18 13:26:18.441 INFO [stderr] 212 |         let status = Command::new( "rm" ).args( &[ "-rf", "testing-block.json" ]
Dec 18 13:26:18.441 INFO [stderr]     |             ^^^^^^ help: consider using `_status` instead
Dec 18 13:26:18.441 INFO [stderr] 
Dec 18 13:26:18.441 INFO [stderr] warning: unused variable: `json_block`
Dec 18 13:26:18.442 INFO [stderr]    --> src/lib.rs:219:13
Dec 18 13:26:18.442 INFO [stderr]     |
Dec 18 13:26:18.442 INFO [stderr] 219 |         let json_block = block::Block::read_and_construct( "testing-block.json" ).expect( "Did not convert json_block" );
Dec 18 13:26:18.442 INFO [stderr]     |             ^^^^^^^^^^ help: consider using `_json_block` instead
Dec 18 13:26:18.442 INFO [stderr] 
Dec 18 13:26:18.442 INFO [stderr] warning: unused variable: `i`
Dec 18 13:26:18.442 INFO [stderr]    --> src/lib.rs:374:13
Dec 18 13:26:18.442 INFO [stderr]     |
Dec 18 13:26:18.442 INFO [stderr] 374 |         for i in 0 .. 16 
Dec 18 13:26:18.442 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 18 13:26:18.442 INFO [stderr] 
Dec 18 13:26:18.442 INFO [stderr] warning: unused variable: `i`
Dec 18 13:26:18.442 INFO [stderr]    --> src/lib.rs:423:13
Dec 18 13:26:18.442 INFO [stderr]     |
Dec 18 13:26:18.442 INFO [stderr] 423 |         for i in 0 .. 8 
Dec 18 13:26:18.442 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 18 13:26:18.442 INFO [stderr] 
Dec 18 13:26:18.442 INFO [stderr] warning: unused variable: `i`
Dec 18 13:26:18.442 INFO [stderr]    --> src/lib.rs:444:13
Dec 18 13:26:18.442 INFO [stderr]     |
Dec 18 13:26:18.442 INFO [stderr] 444 |         for i in 0 .. 8
Dec 18 13:26:18.442 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 18 13:26:18.442 INFO [stderr] 
Dec 18 13:26:18.442 INFO [stderr] warning: unused variable: `i`
Dec 18 13:26:18.442 INFO [stderr]    --> src/lib.rs:465:13
Dec 18 13:26:18.442 INFO [stderr]     |
Dec 18 13:26:18.442 INFO [stderr] 465 |         for i in 0 .. 8 
Dec 18 13:26:18.442 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 18 13:26:18.442 INFO [stderr] 
Dec 18 13:26:18.442 INFO [stderr] warning: unused variable: `i`
Dec 18 13:26:18.442 INFO [stderr]    --> src/lib.rs:496:13
Dec 18 13:26:18.442 INFO [stderr]     |
Dec 18 13:26:18.442 INFO [stderr] 496 |         for i in 0 .. 8 
Dec 18 13:26:18.442 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 18 13:26:18.442 INFO [stderr] 
Dec 18 13:26:18.442 INFO [stderr] warning: unused variable: `i`
Dec 18 13:26:18.442 INFO [stderr]    --> src/lib.rs:529:13
Dec 18 13:26:18.442 INFO [stderr]     |
Dec 18 13:26:18.442 INFO [stderr] 529 |         for i in 0 .. 8
Dec 18 13:26:18.442 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 18 13:26:18.442 INFO [stderr] 
Dec 18 13:26:18.442 INFO [stderr] warning: unused variable: `i`
Dec 18 13:26:18.442 INFO [stderr]    --> src/lib.rs:569:13
Dec 18 13:26:18.442 INFO [stderr]     |
Dec 18 13:26:18.442 INFO [stderr] 569 |         for i in 0 .. 8
Dec 18 13:26:18.442 INFO [stderr]     |             ^ help: consider using `_i` instead
Dec 18 13:26:18.442 INFO [stderr] 
Dec 18 13:26:18.442 INFO [stderr] warning: unused variable: `status`
Dec 18 13:26:18.442 INFO [stderr]    --> src/lib.rs:677:13
Dec 18 13:26:18.442 INFO [stderr]     |
Dec 18 13:26:18.442 INFO [stderr] 677 |         let status = Command::new( "rm" ).args( &[ "-rf", "testing-merkle.json" ]
Dec 18 13:26:18.442 INFO [stderr]     |             ^^^^^^ help: consider using `_status` instead
Dec 18 13:26:18.442 INFO [stderr] 
Dec 18 13:26:18.442 INFO [stderr] warning: unused variable: `json_nodes`
Dec 18 13:26:18.442 INFO [stderr]    --> src/lib.rs:686:13
Dec 18 13:26:18.442 INFO [stderr]     |
Dec 18 13:26:18.442 INFO [stderr] 686 |         let json_nodes = merkle::Merkle::read_and_construct( "testing-merkle.json" ).expect("Did not convert to json_nodes");
Dec 18 13:26:18.442 INFO [stderr]     |             ^^^^^^^^^^ help: consider using `_json_nodes` instead
Dec 18 13:26:18.442 INFO [stderr] 
Dec 18 13:26:18.442 INFO [stderr] warning: unused variable: `status`
Dec 18 13:26:18.442 INFO [stderr]    --> src/lib.rs:785:13
Dec 18 13:26:18.442 INFO [stderr]     |
Dec 18 13:26:18.442 INFO [stderr] 785 |         let status = Command::new( "rm" ).args( &[ "-rf", "testing-chain.json" ] ).status().expect( "Process failed ");
Dec 18 13:26:18.442 INFO [stderr]     |             ^^^^^^ help: consider using `_status` instead
Dec 18 13:26:18.442 INFO [stderr] 
Dec 18 13:26:18.442 INFO [stderr] warning: unused variable: `d_chain`
Dec 18 13:26:18.442 INFO [stderr]    --> src/lib.rs:798:13
Dec 18 13:26:18.442 INFO [stderr]     |
Dec 18 13:26:18.442 INFO [stderr] 798 |         let d_chain = chain::Chain::read_and_construct( "testing-chain.json" ).expect("Did not convert to d_chain");
Dec 18 13:26:18.442 INFO [stderr]     |             ^^^^^^^ help: consider using `_d_chain` instead
Dec 18 13:26:18.442 INFO [stderr] 
Dec 18 13:26:18.442 INFO [stderr] warning: unused variable: `status`
Dec 18 13:26:18.442 INFO [stderr]    --> src/lib.rs:909:13
Dec 18 13:26:18.442 INFO [stderr]     |
Dec 18 13:26:18.442 INFO [stderr] 909 |         let status = Command::new( "rm" ).args( &[ "testing-write.json" ] ).status().expect( "Filed to delete the json files" );
Dec 18 13:26:18.442 INFO [stderr]     |             ^^^^^^ help: consider using `_status` instead
Dec 18 13:26:18.442 INFO [stderr] 
Dec 18 13:26:18.690 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:26:18.690 INFO [stderr]    --> src/lib.rs:192:9
Dec 18 13:26:18.690 INFO [stderr]     |
Dec 18 13:26:18.690 INFO [stderr] 192 |         block.write_to( &file_name );
Dec 18 13:26:18.690 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:26:18.690 INFO [stderr]     |
Dec 18 13:26:18.690 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 13:26:18.690 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:26:18.690 INFO [stderr] 
Dec 18 13:26:18.690 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:26:18.690 INFO [stderr]    --> src/lib.rs:199:9
Dec 18 13:26:18.690 INFO [stderr]     |
Dec 18 13:26:18.690 INFO [stderr] 199 |         file.read_to_string( &mut json );
Dec 18 13:26:18.690 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:26:18.692 INFO [stderr]     |
Dec 18 13:26:18.692 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:26:18.692 INFO [stderr] 
Dec 18 13:26:18.692 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:26:18.692 INFO [stderr]    --> src/lib.rs:217:9
Dec 18 13:26:18.692 INFO [stderr]     |
Dec 18 13:26:18.692 INFO [stderr] 217 |         block.write_to( "testing-block.json" );
Dec 18 13:26:18.692 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:26:18.692 INFO [stderr]     |
Dec 18 13:26:18.692 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:26:18.692 INFO [stderr] 
Dec 18 13:26:18.695 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:26:18.695 INFO [stderr]    --> src/lib.rs:657:9
Dec 18 13:26:18.695 INFO [stderr]     |
Dec 18 13:26:18.695 INFO [stderr] 657 |         merkle.write_to( &file_name );
Dec 18 13:26:18.695 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:26:18.695 INFO [stderr]     |
Dec 18 13:26:18.695 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:26:18.695 INFO [stderr] 
Dec 18 13:26:18.696 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:26:18.696 INFO [stderr]    --> src/lib.rs:664:9
Dec 18 13:26:18.696 INFO [stderr]     |
Dec 18 13:26:18.696 INFO [stderr] 664 |         file.read_to_string( &mut json );
Dec 18 13:26:18.696 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:26:18.696 INFO [stderr]     |
Dec 18 13:26:18.696 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:26:18.696 INFO [stderr] 
Dec 18 13:26:18.699 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:26:18.699 INFO [stderr]    --> src/lib.rs:684:9
Dec 18 13:26:18.699 INFO [stderr]     |
Dec 18 13:26:18.699 INFO [stderr] 684 |         merkle.write_to( "testing-merkle.json" );
Dec 18 13:26:18.699 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:26:18.699 INFO [stderr]     |
Dec 18 13:26:18.699 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:26:18.699 INFO [stderr] 
Dec 18 13:26:18.699 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:26:18.699 INFO [stderr]    --> src/lib.rs:766:9
Dec 18 13:26:18.699 INFO [stderr]     |
Dec 18 13:26:18.699 INFO [stderr] 766 |         chain.write_to( "testing-chain.json" );
Dec 18 13:26:18.699 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:26:18.699 INFO [stderr]     |
Dec 18 13:26:18.699 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:26:18.699 INFO [stderr] 
Dec 18 13:26:18.699 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:26:18.699 INFO [stderr]    --> src/lib.rs:772:9
Dec 18 13:26:18.699 INFO [stderr]     |
Dec 18 13:26:18.699 INFO [stderr] 772 |         file.read_to_string( &mut string );
Dec 18 13:26:18.699 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:26:18.699 INFO [stderr]     |
Dec 18 13:26:18.699 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:26:18.699 INFO [stderr] 
Dec 18 13:26:18.699 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:26:18.699 INFO [stderr]    --> src/lib.rs:796:9
Dec 18 13:26:18.699 INFO [stderr]     |
Dec 18 13:26:18.699 INFO [stderr] 796 |         chain.write_to( "testing-chain.json" );
Dec 18 13:26:18.699 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:26:18.699 INFO [stderr]     |
Dec 18 13:26:18.700 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:26:18.700 INFO [stderr] 
Dec 18 13:26:18.700 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:26:18.700 INFO [stderr]    --> src/lib.rs:890:9
Dec 18 13:26:18.700 INFO [stderr]     |
Dec 18 13:26:18.700 INFO [stderr] 890 |         transaction.write_to( "testing-write.json" );
Dec 18 13:26:18.700 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:26:18.700 INFO [stderr]     |
Dec 18 13:26:18.700 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:26:18.700 INFO [stderr] 
Dec 18 13:26:18.700 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:26:18.700 INFO [stderr]    --> src/lib.rs:896:9
Dec 18 13:26:18.700 INFO [stderr]     |
Dec 18 13:26:18.700 INFO [stderr] 896 |         file.read_to_string( &mut info );
Dec 18 13:26:18.700 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:26:18.700 INFO [stderr]     |
Dec 18 13:26:18.700 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:26:18.700 INFO [stderr] 
Dec 18 13:26:18.700 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:26:18.700 INFO [stderr]    --> src/lib.rs:921:9
Dec 18 13:26:18.700 INFO [stderr]     |
Dec 18 13:26:18.700 INFO [stderr] 921 |         transaction.write_to( "testing-write.json" );
Dec 18 13:26:18.700 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 13:26:18.700 INFO [stderr]     |
Dec 18 13:26:18.700 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:26:18.700 INFO [stderr] 
Dec 18 13:26:19.131 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.01s
Dec 18 13:26:19.634 INFO running `"docker" "inspect" "02cd5d65e01704d05705377de4d2044b007ab7f4748fe9a7676f4488a26d02bb"`
Dec 18 13:26:19.714 INFO running `"docker" "rm" "-f" "02cd5d65e01704d05705377de4d2044b007ab7f4748fe9a7676f4488a26d02bb"`
Dec 18 13:26:19.863 INFO [stdout] 02cd5d65e01704d05705377de4d2044b007ab7f4748fe9a7676f4488a26d02bb