[INFO] crate off_blockway 0.0.8 is already in cache [INFO] checking off_blockway-0.0.8 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] extracting crate off_blockway 0.0.8 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate off_blockway 0.0.8 on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate off_blockway 0.0.8 [INFO] finished tweaking crates.io crate off_blockway 0.0.8 [INFO] tweaked toml for crates.io crate off_blockway 0.0.8 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] d0e7add785a02523d206528c2a577304c3d5cfc5429f2d5700c6589ddcc30d7e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "d0e7add785a02523d206528c2a577304c3d5cfc5429f2d5700c6589ddcc30d7e"` [INFO] [stderr] Checking generic-array v0.8.3 [INFO] [stderr] Checking generic-array v0.9.0 [INFO] [stderr] Compiling syn v1.0.18 [INFO] [stderr] Checking digest v0.6.2 [INFO] [stderr] Checking block-buffer v0.2.0 [INFO] [stderr] Checking sha3 v0.6.0 [INFO] [stderr] Compiling serde_derive v1.0.106 [INFO] [stderr] Checking off_blockway v0.0.8 (/opt/rustwide/workdir) [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/block.rs:140:13 [INFO] [stderr] | [INFO] [stderr] 140 | Ok( ( json ) ) [INFO] [stderr] | ^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/merkle.rs:516:13 [INFO] [stderr] | [INFO] [stderr] 516 | Ok( ( json ) ) [INFO] [stderr] | ^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/block.rs:140:13 [INFO] [stderr] | [INFO] [stderr] 140 | Ok( ( json ) ) [INFO] [stderr] | ^^^^^^^^ help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around function argument [INFO] [stderr] --> src/merkle.rs:516:13 [INFO] [stderr] | [INFO] [stderr] 516 | Ok( ( json ) ) [INFO] [stderr] | ^^^^^^^^ help: remove these parentheses [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/lib.rs:100:13 [INFO] [stderr] | [INFO] [stderr] 100 | let value: u8 = 9; [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `left_value` [INFO] [stderr] --> src/lib.rs:122:13 [INFO] [stderr] | [INFO] [stderr] 122 | let left_value: u8 = 0; [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_left_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `right_value` [INFO] [stderr] --> src/lib.rs:123:13 [INFO] [stderr] | [INFO] [stderr] 123 | let right_value: u8 = 1; [INFO] [stderr] | ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_right_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `status` [INFO] [stderr] --> src/lib.rs:212:13 [INFO] [stderr] | [INFO] [stderr] 212 | let status = Command::new( "rm" ).args( &[ "-rf", "testing-block.json" ] [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `json_block` [INFO] [stderr] --> src/lib.rs:219:13 [INFO] [stderr] | [INFO] [stderr] 219 | let json_block = block::Block::read_and_construct( "testing-block.json" ).expect( "Did not convert json_block" ); [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_json_block` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/lib.rs:374:13 [INFO] [stderr] | [INFO] [stderr] 374 | for i in 0 .. 16 [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/lib.rs:423:13 [INFO] [stderr] | [INFO] [stderr] 423 | for i in 0 .. 8 [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/lib.rs:444:13 [INFO] [stderr] | [INFO] [stderr] 444 | for i in 0 .. 8 [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/lib.rs:465:13 [INFO] [stderr] | [INFO] [stderr] 465 | for i in 0 .. 8 [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/lib.rs:496:13 [INFO] [stderr] | [INFO] [stderr] 496 | for i in 0 .. 8 [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/lib.rs:529:13 [INFO] [stderr] | [INFO] [stderr] 529 | for i in 0 .. 8 [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/lib.rs:569:13 [INFO] [stderr] | [INFO] [stderr] 569 | for i in 0 .. 8 [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `status` [INFO] [stderr] --> src/lib.rs:677:13 [INFO] [stderr] | [INFO] [stderr] 677 | let status = Command::new( "rm" ).args( &[ "-rf", "testing-merkle.json" ] [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `json_nodes` [INFO] [stderr] --> src/lib.rs:686:13 [INFO] [stderr] | [INFO] [stderr] 686 | let json_nodes = merkle::Merkle::read_and_construct( "testing-merkle.json" ).expect("Did not convert to json_nodes"); [INFO] [stderr] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_json_nodes` [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `status` [INFO] [stderr] --> src/lib.rs:785:13 [INFO] [stderr] | [INFO] [stderr] 785 | let status = Command::new( "rm" ).args( &[ "-rf", "testing-chain.json" ] ).status().expect( "Process failed "); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `d_chain` [INFO] [stderr] --> src/lib.rs:798:13 [INFO] [stderr] | [INFO] [stderr] 798 | let d_chain = chain::Chain::read_and_construct( "testing-chain.json" ).expect("Did not convert to d_chain"); [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_d_chain` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `status` [INFO] [stderr] --> src/lib.rs:909:13 [INFO] [stderr] | [INFO] [stderr] 909 | let status = Command::new( "rm" ).args( &[ "testing-write.json" ] ).status().expect( "Filed to delete the json files" ); [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_status` [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:192:9 [INFO] [stderr] | [INFO] [stderr] 192 | block.write_to( &file_name ); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:199:9 [INFO] [stderr] | [INFO] [stderr] 199 | file.read_to_string( &mut json ); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:217:9 [INFO] [stderr] | [INFO] [stderr] 217 | block.write_to( "testing-block.json" ); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:657:9 [INFO] [stderr] | [INFO] [stderr] 657 | merkle.write_to( &file_name ); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:664:9 [INFO] [stderr] | [INFO] [stderr] 664 | file.read_to_string( &mut json ); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:684:9 [INFO] [stderr] | [INFO] [stderr] 684 | merkle.write_to( "testing-merkle.json" ); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:766:9 [INFO] [stderr] | [INFO] [stderr] 766 | chain.write_to( "testing-chain.json" ); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:772:9 [INFO] [stderr] | [INFO] [stderr] 772 | file.read_to_string( &mut string ); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:796:9 [INFO] [stderr] | [INFO] [stderr] 796 | chain.write_to( "testing-chain.json" ); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:890:9 [INFO] [stderr] | [INFO] [stderr] 890 | transaction.write_to( "testing-write.json" ); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:896:9 [INFO] [stderr] | [INFO] [stderr] 896 | file.read_to_string( &mut info ); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:921:9 [INFO] [stderr] | [INFO] [stderr] 921 | transaction.write_to( "testing-write.json" ); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 31 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 16.03s [INFO] running `"docker" "inspect" "d0e7add785a02523d206528c2a577304c3d5cfc5429f2d5700c6589ddcc30d7e"` [INFO] running `"docker" "rm" "-f" "d0e7add785a02523d206528c2a577304c3d5cfc5429f2d5700c6589ddcc30d7e"` [INFO] [stdout] d0e7add785a02523d206528c2a577304c3d5cfc5429f2d5700c6589ddcc30d7e