[INFO] fetching crate kademlia-dht 1.2.0...
[INFO] checking kademlia-dht-1.2.0 against beta for pr-78714
[INFO] extracting crate kademlia-dht 1.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate kademlia-dht 1.2.0 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 kademlia-dht 1.2.0
[INFO] finished tweaking crates.io crate kademlia-dht 1.2.0
[INFO] tweaked toml for crates.io crate kademlia-dht 1.2.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate kademlia-dht 1.2.0 already has a lockfile, it will not be regenerated
[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-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" "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] 18cd8389f5a4aa6d84cdab85356ef89244e432e6422b65f49982ca641722ff34
[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" "18cd8389f5a4aa6d84cdab85356ef89244e432e6422b65f49982ca641722ff34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18cd8389f5a4aa6d84cdab85356ef89244e432e6422b65f49982ca641722ff34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18cd8389f5a4aa6d84cdab85356ef89244e432e6422b65f49982ca641722ff34", kill_on_drop: false }`
[INFO] [stdout] 18cd8389f5a4aa6d84cdab85356ef89244e432e6422b65f49982ca641722ff34
[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" "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] 4074688c68b76cc5e5f0cc745de5fc7292828ba75cba5f352875533cdfada6b6
[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" "4074688c68b76cc5e5f0cc745de5fc7292828ba75cba5f352875533cdfada6b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling syn v1.0.6
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]     Checking term v0.5.2
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking sha3 v0.7.3
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking simplelog v0.5.3
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]     Checking bincode v0.9.2
[INFO] [stderr]     Checking kademlia-dht v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `log`
[INFO] [stdout]   --> src/node/mod.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | use log::{debug, info, log, warn};
[INFO] [stdout]    |                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log`
[INFO] [stdout]  --> src/protocol.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use log::{log, warn};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log`
[INFO] [stdout]  --> src/storage.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log::{info, log};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log`
[INFO] [stdout]   --> src/node/mod.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | use log::{debug, info, log, warn};
[INFO] [stdout]    |                        ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log`
[INFO] [stdout]  --> src/protocol.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use log::{log, warn};
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log`
[INFO] [stdout]  --> src/storage.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use log::{info, log};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/routing.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         mem::replace(&mut self.nodes, old_bucket);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stdout]   --> src/routing.rs:53:9
[INFO] [stdout]    |
[INFO] [stdout] 53 |         mem::replace(&mut self.nodes, old_bucket);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: if you don't need the old value, you can just assign the new value directly
[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: unused import: `log`
[INFO] [stdout]  --> src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log::{info, log};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log`
[INFO] [stdout]  --> src/main.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log::{info, log};
[INFO] [stdout]   |                 ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.92s
[INFO] running `Command { std: "docker" "inspect" "4074688c68b76cc5e5f0cc745de5fc7292828ba75cba5f352875533cdfada6b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4074688c68b76cc5e5f0cc745de5fc7292828ba75cba5f352875533cdfada6b6", kill_on_drop: false }`
[INFO] [stdout] 4074688c68b76cc5e5f0cc745de5fc7292828ba75cba5f352875533cdfada6b6