[INFO] fetching crate parity-db 0.2.4...
[INFO] checking parity-db-0.2.4 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate parity-db 0.2.4 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate parity-db 0.2.4 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate parity-db 0.2.4
[INFO] finished tweaking crates.io crate parity-db 0.2.4
[INFO] tweaked toml for crates.io crate parity-db 0.2.4 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18194a3a54b69710d7e1b4c809b465c8b0458f953f58f2c422dce08264ffe20e
[INFO] running `Command { std: "docker" "start" "-a" "18194a3a54b69710d7e1b4c809b465c8b0458f953f58f2c422dce08264ffe20e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18194a3a54b69710d7e1b4c809b465c8b0458f953f58f2c422dce08264ffe20e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18194a3a54b69710d7e1b4c809b465c8b0458f953f58f2c422dce08264ffe20e", kill_on_drop: false }`
[INFO] [stdout] 18194a3a54b69710d7e1b4c809b465c8b0458f953f58f2c422dce08264ffe20e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9ca62b39349b499a85122bf437b88b6ddde908725702f07fc2f32e3d38dc473c
[INFO] running `Command { std: "docker" "start" "-a" "9ca62b39349b499a85122bf437b88b6ddde908725702f07fc2f32e3d38dc473c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking instant v0.1.10
[INFO] [stderr]     Checking crc32fast v1.2.1
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]     Checking blake2-rfc v0.2.18
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking memmap2 v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking parity-db v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/index.rs:303:4
[INFO] [stdout]     |
[INFO] [stdout] 303 |             &mut chunk[i * 8 .. i * 8 + 8].copy_from_slice(&new_entry.as_u64().to_le_bytes());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/index.rs:311:5
[INFO] [stdout]     |
[INFO] [stdout] 311 |                 &mut chunk[i * 8 .. i * 8 + 8].copy_from_slice(&new_entry.as_u64().to_le_bytes());
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/index.rs:349:4
[INFO] [stdout]     |
[INFO] [stdout] 349 |             &mut chunk[i * 8 .. i * 8 + 8].copy_from_slice(&new_entry.as_u64().to_le_bytes());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/table.rs:467:3
[INFO] [stdout]     |
[INFO] [stdout] 467 |         &buf[0..2].copy_from_slice(TOMBSTONE);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/table.rs:468:3
[INFO] [stdout]     |
[INFO] [stdout] 468 |         &buf[2..10].copy_from_slice(&last_removed.to_le_bytes());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/column.rs:473:7
[INFO] [stdout]     |
[INFO] [stdout] 473 |                         &mut key[0..8].copy_from_slice(&index_key.to_be_bytes());
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/index.rs:303:4
[INFO] [stdout]     |
[INFO] [stdout] 303 |             &mut chunk[i * 8 .. i * 8 + 8].copy_from_slice(&new_entry.as_u64().to_le_bytes());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/index.rs:311:5
[INFO] [stdout]     |
[INFO] [stdout] 311 |                 &mut chunk[i * 8 .. i * 8 + 8].copy_from_slice(&new_entry.as_u64().to_le_bytes());
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/index.rs:349:4
[INFO] [stdout]     |
[INFO] [stdout] 349 |             &mut chunk[i * 8 .. i * 8 + 8].copy_from_slice(&new_entry.as_u64().to_le_bytes());
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/table.rs:467:3
[INFO] [stdout]     |
[INFO] [stdout] 467 |         &buf[0..2].copy_from_slice(TOMBSTONE);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/table.rs:468:3
[INFO] [stdout]     |
[INFO] [stdout] 468 |         &buf[2..10].copy_from_slice(&last_removed.to_le_bytes());
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/column.rs:473:7
[INFO] [stdout]     |
[INFO] [stdout] 473 |                         &mut key[0..8].copy_from_slice(&index_key.to_be_bytes());
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.82s
[INFO] running `Command { std: "docker" "inspect" "9ca62b39349b499a85122bf437b88b6ddde908725702f07fc2f32e3d38dc473c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ca62b39349b499a85122bf437b88b6ddde908725702f07fc2f32e3d38dc473c", kill_on_drop: false }`
[INFO] [stdout] 9ca62b39349b499a85122bf437b88b6ddde908725702f07fc2f32e3d38dc473c