[INFO] cloning repository https://github.com/kojole-sandbox/piyokvs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kojole-sandbox/piyokvs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkojole-sandbox%2Fpiyokvs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkojole-sandbox%2Fpiyokvs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 13c83777166a8950e8c92677f6cf7da14a621922
[INFO] checking kojole-sandbox/piyokvs against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkojole-sandbox%2Fpiyokvs" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kojole-sandbox/piyokvs on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kojole-sandbox/piyokvs
[INFO] finished tweaking git repo https://github.com/kojole-sandbox/piyokvs
[INFO] tweaked toml for git repo https://github.com/kojole-sandbox/piyokvs written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/kojole-sandbox/piyokvs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9cd8df9d2da14ae288693eb00e711ce9aa8123efbe678b602e3c17dbdf16fb62
[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" "9cd8df9d2da14ae288693eb00e711ce9aa8123efbe678b602e3c17dbdf16fb62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9cd8df9d2da14ae288693eb00e711ce9aa8123efbe678b602e3c17dbdf16fb62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9cd8df9d2da14ae288693eb00e711ce9aa8123efbe678b602e3c17dbdf16fb62", kill_on_drop: false }`
[INFO] [stdout] 9cd8df9d2da14ae288693eb00e711ce9aa8123efbe678b602e3c17dbdf16fb62
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e32dae3493f61bc6e6498c10fe1cec110796c311ae6b10cc4d2dece8e857a8e
[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" "3e32dae3493f61bc6e6498c10fe1cec110796c311ae6b10cc4d2dece8e857a8e", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking rand v0.5.1
[INFO] [stderr]     Checking piyokvs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:20:16
[INFO] [stdout]    |
[INFO] [stdout] 20 |     cache: Box<Cache<u32, u64> + Send + Sync>,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Cache<u32, u64> + Send + Sync`
[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]   --> src/buffer.rs:21:24
[INFO] [stdout]    |
[INFO] [stdout] 21 |     storage: Mutex<Box<Storage + Send>>,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |         cache: Box<Cache<u32, u64> + Send + Sync>,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Cache<u32, u64> + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:27:22
[INFO] [stdout]    |
[INFO] [stdout] 27 |         storage: Box<Storage + Send>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/client.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 |     buffer: Arc<Buffer>,
[INFO] [stdout]   |                 ^^^^^^ help: use `dyn`: `dyn Buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:13:28
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(buffer: Arc<Buffer>) -> Client {
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:20:16
[INFO] [stdout]    |
[INFO] [stdout] 20 |     cache: Box<Cache<u32, u64> + Send + Sync>,
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Cache<u32, u64> + Send + Sync`
[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]   --> src/buffer.rs:21:24
[INFO] [stdout]    |
[INFO] [stdout] 21 |     storage: Mutex<Box<Storage + Send>>,
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:26:20
[INFO] [stdout]    |
[INFO] [stdout] 26 |         cache: Box<Cache<u32, u64> + Send + Sync>,
[INFO] [stdout]    |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Cache<u32, u64> + Send + Sync`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/buffer.rs:27:22
[INFO] [stdout]    |
[INFO] [stdout] 27 |         storage: Box<Storage + Send>,
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^ help: use `dyn`: `dyn Storage + Send`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/client.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 |     buffer: Arc<Buffer>,
[INFO] [stdout]   |                 ^^^^^^ help: use `dyn`: `dyn Buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/client.rs:13:28
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(buffer: Arc<Buffer>) -> Client {
[INFO] [stdout]    |                            ^^^^^^ help: use `dyn`: `dyn Buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/storage.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 143 |     use std::mem::uninitialized;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated function `std::mem::uninitialized`: use `mem::MaybeUninit` instead
[INFO] [stdout]    --> src/storage.rs:183:32
[INFO] [stdout]     |
[INFO] [stdout] 183 |                 let mut data = uninitialized();
[INFO] [stdout]     |                                ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> tests/integration_test.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let mut entry = buffer.lock(key).unwrap();
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.90s
[INFO] running `Command { std: "docker" "inspect" "3e32dae3493f61bc6e6498c10fe1cec110796c311ae6b10cc4d2dece8e857a8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e32dae3493f61bc6e6498c10fe1cec110796c311ae6b10cc4d2dece8e857a8e", kill_on_drop: false }`
[INFO] [stdout] 3e32dae3493f61bc6e6498c10fe1cec110796c311ae6b10cc4d2dece8e857a8e