[INFO] cloning repository https://github.com/allemanfredi/simple-eth-node-discoverer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/allemanfredi/simple-eth-node-discoverer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fallemanfredi%2Fsimple-eth-node-discoverer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fallemanfredi%2Fsimple-eth-node-discoverer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e35e0c3d87a108361c616c2a2e335e6e2dc60de
[INFO] checking allemanfredi/simple-eth-node-discoverer against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fallemanfredi%2Fsimple-eth-node-discoverer" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/allemanfredi/simple-eth-node-discoverer on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/allemanfredi/simple-eth-node-discoverer
[INFO] finished tweaking git repo https://github.com/allemanfredi/simple-eth-node-discoverer
[INFO] tweaked toml for git repo https://github.com/allemanfredi/simple-eth-node-discoverer written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/allemanfredi/simple-eth-node-discoverer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sha3 v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ebbff8f59051796250f1e7db0bb47fa595ad106ebb7cb0495470de9b6baf5799
[INFO] running `Command { std: "docker" "start" "-a" "ebbff8f59051796250f1e7db0bb47fa595ad106ebb7cb0495470de9b6baf5799", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebbff8f59051796250f1e7db0bb47fa595ad106ebb7cb0495470de9b6baf5799", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebbff8f59051796250f1e7db0bb47fa595ad106ebb7cb0495470de9b6baf5799", kill_on_drop: false }`
[INFO] [stdout] ebbff8f59051796250f1e7db0bb47fa595ad106ebb7cb0495470de9b6baf5799
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 444968eeaf6dd20c6e1d05faa72f3a8126be5d514537da4d3da73290638a4301
[INFO] running `Command { std: "docker" "start" "-a" "444968eeaf6dd20c6e1d05faa72f3a8126be5d514537da4d3da73290638a4301", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling serde v1.0.112
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking ppv-lite86 v0.2.8
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]     Checking utils v0.1.0 (/opt/rustwide/workdir/utils)
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[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking libsecp256k1 v0.3.5
[INFO] [stderr]    Compiling serde_derive v1.0.112
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]     Checking tokio v0.2.21
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking settings v0.1.0 (/opt/rustwide/workdir/settings)
[INFO] [stderr]     Checking peers v0.1.0 (/opt/rustwide/workdir/peers)
[INFO] [stdout] warning: unused imports: `Signature`, `verify`
[INFO] [stdout]  --> peers/src/discover/protocol.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use secp256k1::{sign, verify, Message, PublicKey, SecretKey, Signature};
[INFO] [stdout]   |                       ^^^^^^                                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FIND_NODE`, `NEIGHBORS`
[INFO] [stdout]   --> peers/src/discover/protocol.rs:10:54
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::discover::packets::{Data, Header, Packet, FIND_NODE, NEIGHBORS, PING, PONG};
[INFO] [stdout]    |                                                      ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::peer::Peer`
[INFO] [stdout]   --> peers/src/discover/protocol.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::peer::Peer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Signature`, `verify`
[INFO] [stdout]  --> peers/src/discover/protocol.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use secp256k1::{sign, verify, Message, PublicKey, SecretKey, Signature};
[INFO] [stdout]   |                       ^^^^^^                                 ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `FIND_NODE`, `NEIGHBORS`
[INFO] [stdout]   --> peers/src/discover/protocol.rs:10:54
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::discover::packets::{Data, Header, Packet, FIND_NODE, NEIGHBORS, PING, PONG};
[INFO] [stdout]    |                                                      ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::peer::Peer`
[INFO] [stdout]   --> peers/src/discover/protocol.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::peer::Peer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `recipient_ip`
[INFO] [stdout]    --> peers/src/discover/protocol.rs:129:24
[INFO] [stdout]     |
[INFO] [stdout] 129 |             Data::Pong(recipient_ip, recipient_tcp_port, ping_hash, _, node_id) => {
[INFO] [stdout]     |                        ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_recipient_ip`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `recipient_tcp_port`
[INFO] [stdout]    --> peers/src/discover/protocol.rs:129:38
[INFO] [stdout]     |
[INFO] [stdout] 129 |             Data::Pong(recipient_ip, recipient_tcp_port, ping_hash, _, node_id) => {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_recipient_tcp_port`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node_id`
[INFO] [stdout]    --> peers/src/discover/protocol.rs:129:72
[INFO] [stdout]     |
[INFO] [stdout] 129 |             Data::Pong(recipient_ip, recipient_tcp_port, ping_hash, _, node_id) => {
[INFO] [stdout]     |                                                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `self_peers`
[INFO] [stdout]   --> peers/src/peers_handler.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let self_peers = self.peers.clone();
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_self_peers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `recipient_ip`
[INFO] [stdout]    --> peers/src/discover/protocol.rs:129:24
[INFO] [stdout]     |
[INFO] [stdout] 129 |             Data::Pong(recipient_ip, recipient_tcp_port, ping_hash, _, node_id) => {
[INFO] [stdout]     |                        ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_recipient_ip`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `recipient_tcp_port`
[INFO] [stdout]    --> peers/src/discover/protocol.rs:129:38
[INFO] [stdout]     |
[INFO] [stdout] 129 |             Data::Pong(recipient_ip, recipient_tcp_port, ping_hash, _, node_id) => {
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_recipient_tcp_port`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node_id`
[INFO] [stdout]    --> peers/src/discover/protocol.rs:129:72
[INFO] [stdout]     |
[INFO] [stdout] 129 |             Data::Pong(recipient_ip, recipient_tcp_port, ping_hash, _, node_id) => {
[INFO] [stdout]     |                                                                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_node_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `self_peers`
[INFO] [stdout]   --> peers/src/peers_handler.rs:75:13
[INFO] [stdout]    |
[INFO] [stdout] 75 |         let self_peers = self.peers.clone();
[INFO] [stdout]    |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_self_peers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> peers/src/peers_handler.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         self.spawn_connect_with_default_peers(default_peers);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> peers/src/peers_handler.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         self.spawn_discover_new_peers();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> peers/src/peers_handler.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |         self.spawn_connect_with_default_peers(default_peers);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> peers/src/peers_handler.rs:64:9
[INFO] [stdout]    |
[INFO] [stdout] 64 |         self.spawn_discover_new_peers();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking simple-eth-node-discoverer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.85s
[INFO] running `Command { std: "docker" "inspect" "444968eeaf6dd20c6e1d05faa72f3a8126be5d514537da4d3da73290638a4301", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "444968eeaf6dd20c6e1d05faa72f3a8126be5d514537da4d3da73290638a4301", kill_on_drop: false }`
[INFO] [stdout] 444968eeaf6dd20c6e1d05faa72f3a8126be5d514537da4d3da73290638a4301