[INFO] fetching crate leveldb 0.8.6...
[INFO] checking leveldb-0.8.6 against beta for pr-78714
[INFO] extracting crate leveldb 0.8.6 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate leveldb 0.8.6 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate leveldb 0.8.6
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate leveldb 0.8.6
[INFO] tweaked toml for crates.io crate leveldb 0.8.6 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 74131522df88a06a43f13ee33e2fd16058086f38bfbeb93e03751970c62e6818
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "74131522df88a06a43f13ee33e2fd16058086f38bfbeb93e03751970c62e6818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "74131522df88a06a43f13ee33e2fd16058086f38bfbeb93e03751970c62e6818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74131522df88a06a43f13ee33e2fd16058086f38bfbeb93e03751970c62e6818", kill_on_drop: false }`
[INFO] [stdout] 74131522df88a06a43f13ee33e2fd16058086f38bfbeb93e03751970c62e6818
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c5d9927b4e2983dd2237588a29a45a6c46b83a0f0d87feeff1993e69c0f0483
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6c5d9927b4e2983dd2237588a29a45a6c46b83a0f0d87feeff1993e69c0f0483", kill_on_drop: false }`
[INFO] [stderr]     Checking db-key v0.0.5
[INFO] [stderr]     Checking leveldb v0.8.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/database/error.rs:45:32
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]    --> src/database/iterator.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 |     #[inline]
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]    --> src/database/iterator.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     #[inline]
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]    --> src/database/iterator.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     #[inline]
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/database/error.rs:45:32
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn cause(&self) -> Option<&std::error::Error> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]    --> src/database/iterator.rs:113:5
[INFO] [stdout]     |
[INFO] [stdout] 113 |     #[inline]
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]    --> src/database/iterator.rs:116:5
[INFO] [stdout]     |
[INFO] [stdout] 116 |     #[inline]
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[inline]` is ignored on function prototypes
[INFO] [stdout]    --> src/database/iterator.rs:119:5
[INFO] [stdout]     |
[INFO] [stdout] 119 |     #[inline]
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/iterator.rs:84:22
[INFO] [stdout]    |
[INFO] [stdout] 84 |   let iterable: &mut Iterable<i32> = database;
[INFO] [stdout]    |                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterable<i32>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/iterator.rs:99:22
[INFO] [stdout]    |
[INFO] [stdout] 99 |   let iterable: &mut Iterable<i32> = database;
[INFO] [stdout]    |                      ^^^^^^^^^^^^^ help: use `dyn`: `dyn Iterable<i32>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `collect` that must be used
[INFO] [stdout]   --> tests/concurrent_access.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | /     (0..10).map(|i| {
[INFO] [stdout] 18 | |          let local_db = shared.clone();
[INFO] [stdout] 19 | |
[INFO] [stdout] 20 | |          thread::spawn(move || {
[INFO] [stdout] ...  |
[INFO] [stdout] 28 | |     .map(JoinHandle::join)
[INFO] [stdout] 29 | |     .collect::<Vec<_>>();
[INFO] [stdout]    | |_________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you really need to exhaust the iterator, consider `.for_each(drop)` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "6c5d9927b4e2983dd2237588a29a45a6c46b83a0f0d87feeff1993e69c0f0483", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c5d9927b4e2983dd2237588a29a45a6c46b83a0f0d87feeff1993e69c0f0483", kill_on_drop: false }`
[INFO] [stdout] 6c5d9927b4e2983dd2237588a29a45a6c46b83a0f0d87feeff1993e69c0f0483