[INFO] fetching crate kip_db 0.1.0-beta.0...
[INFO] checking kip_db-0.1.0-beta.0 against master#e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682 for beta-170-4
[INFO] extracting crate kip_db 0.1.0-beta.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate kip_db 0.1.0-beta.0 on toolchain e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config
[INFO] started tweaking crates.io crate kip_db 0.1.0-beta.0
[INFO] finished tweaking crates.io crate kip_db 0.1.0-beta.0
[INFO] tweaked toml for crates.io crate kip_db 0.1.0-beta.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate kip_db 0.1.0-beta.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa505a6f10aa4af930130a0e3be2174d3e66ec3891c3e070253a54decb8e05de
[INFO] running `Command { std: "docker" "start" "-a" "fa505a6f10aa4af930130a0e3be2174d3e66ec3891c3e070253a54decb8e05de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa505a6f10aa4af930130a0e3be2174d3e66ec3891c3e070253a54decb8e05de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa505a6f10aa4af930130a0e3be2174d3e66ec3891c3e070253a54decb8e05de", kill_on_drop: false }`
[INFO] [stdout] fa505a6f10aa4af930130a0e3be2174d3e66ec3891c3e070253a54decb8e05de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+e6e4f7ed1589e03bc2f6c5931c1a72e7947e8682" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6e2451f001f32c92ef22d90668c2ddc8d19203f640c6c7ca28871ff222a3813
[INFO] running `Command { std: "docker" "start" "-a" "b6e2451f001f32c92ef22d90668c2ddc8d19203f640c6c7ca28871ff222a3813", kill_on_drop: false }`
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[INFO] [stderr]    Compiling kip_db v0.1.0-beta.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking predicates-tree v1.0.5
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[INFO] [stdout] error: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/kernel/lsm/iterator/version_iter.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |         drop(self.all_ss_tables.as_ptr());
[INFO] [stdout]     |         ^^^^^---------------------------^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `*mut Vec<Vec<SSTable>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:38:1
[INFO] [stdout]     |
[INFO] [stdout] 38  | warnings, // treat all wanings as errors
[INFO] [stdout]     | ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(dropping_copy_types)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/kernel/lsm/iterator/version_iter.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |         drop(self.version.as_ptr());
[INFO] [stdout]     |         ^^^^^---------------------^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `*mut Arc<version::Version>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/kernel/utils/lru_cache.rs:389:17
[INFO] [stdout]     |
[INFO] [stdout] 389 |                 drop(node.as_ptr());
[INFO] [stdout]     |                 ^^^^^-------------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `*mut Node<K, V>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kip_db` (lib) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/kernel/lsm/iterator/version_iter.rs:186:9
[INFO] [stdout]     |
[INFO] [stdout] 186 |         drop(self.all_ss_tables.as_ptr());
[INFO] [stdout]     |         ^^^^^---------------------------^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `*mut Vec<Vec<SSTable>>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:38:1
[INFO] [stdout]     |
[INFO] [stdout] 38  | warnings, // treat all wanings as errors
[INFO] [stdout]     | ^^^^^^^^
[INFO] [stdout]     = note: `#[deny(dropping_copy_types)]` implied by `#[deny(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/kernel/lsm/iterator/version_iter.rs:187:9
[INFO] [stdout]     |
[INFO] [stdout] 187 |         drop(self.version.as_ptr());
[INFO] [stdout]     |         ^^^^^---------------------^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              argument has type `*mut Arc<version::Version>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: calls to `std::mem::drop` with a value that implements `Copy` does nothing
[INFO] [stdout]    --> src/kernel/utils/lru_cache.rs:389:17
[INFO] [stdout]     |
[INFO] [stdout] 389 |                 drop(node.as_ptr());
[INFO] [stdout]     |                 ^^^^^-------------^
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      argument has type `*mut Node<K, V>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: use `let _ = ...` to ignore the expression or result
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kip_db` (lib test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "b6e2451f001f32c92ef22d90668c2ddc8d19203f640c6c7ca28871ff222a3813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6e2451f001f32c92ef22d90668c2ddc8d19203f640c6c7ca28871ff222a3813", kill_on_drop: false }`
[INFO] [stdout] b6e2451f001f32c92ef22d90668c2ddc8d19203f640c6c7ca28871ff222a3813
