[INFO] cloning repository https://github.com/victor-prokhorov/gossip-glomers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/victor-prokhorov/gossip-glomers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvictor-prokhorov%2Fgossip-glomers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvictor-prokhorov%2Fgossip-glomers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a67c6b62d748e4278ec369a3a5321181e8377c3
[INFO] checking victor-prokhorov/gossip-glomers against try#c8085cfed34c45021fc8f66d073f6394b3e35431 for pr-148939
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvictor-prokhorov%2Fgossip-glomers" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/victor-prokhorov/gossip-glomers
[INFO] finished tweaking git repo https://github.com/victor-prokhorov/gossip-glomers
[INFO] tweaked toml for git repo https://github.com/victor-prokhorov/gossip-glomers written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/victor-prokhorov/gossip-glomers on toolchain c8085cfed34c45021fc8f66d073f6394b3e35431
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/victor-prokhorov/gossip-glomers 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" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid v1.9.1
[INFO] [stderr]   Downloaded syn v2.0.67
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cce671c60f6a287016d5f99b25bad0d51ae92849b428ff4beae40c517abdf677
[INFO] running `Command { std: "docker" "start" "-a" "cce671c60f6a287016d5f99b25bad0d51ae92849b428ff4beae40c517abdf677", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cce671c60f6a287016d5f99b25bad0d51ae92849b428ff4beae40c517abdf677", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cce671c60f6a287016d5f99b25bad0d51ae92849b428ff4beae40c517abdf677", kill_on_drop: false }`
[INFO] [stdout] cce671c60f6a287016d5f99b25bad0d51ae92849b428ff4beae40c517abdf677
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+c8085cfed34c45021fc8f66d073f6394b3e35431" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6eeb46de0466b5b3a298f89eaba1ec1321132b66d9057c6c3ae371b522cd0297
[INFO] running `Command { std: "docker" "start" "-a" "6eeb46de0466b5b3a298f89eaba1ec1321132b66d9057c6c3ae371b522cd0297", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]    Compiling syn v2.0.67
[INFO] [stderr]     Checking uuid v1.9.1
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]     Checking serde v1.0.203
[INFO] [stderr]     Checking serde_json v1.0.117
[INFO] [stderr]     Checking gossip-glomers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::time::Duration;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> src/main.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::time::Duration;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:280:9
[INFO] [stdout]     |
[INFO] [stdout] 280 |     let mut txn_id = 0; // clock
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txn_id`
[INFO] [stdout]    --> src/main.rs:280:9
[INFO] [stdout]     |
[INFO] [stdout] 280 |     let mut txn_id = 0; // clock
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_txn_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txsc`
[INFO] [stdout]    --> src/main.rs:285:9
[INFO] [stdout]     |
[INFO] [stdout] 285 |     let txsc = txc.clone();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_txsc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:280:9
[INFO] [stdout]     |
[INFO] [stdout] 280 |     let mut txn_id = 0; // clock
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txsm`
[INFO] [stdout]    --> src/main.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |     let txsm = txc.clone();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_txsm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `jhc`
[INFO] [stdout]    --> src/main.rs:298:9
[INFO] [stdout]     |
[INFO] [stdout] 298 |     let jhc = thread::spawn(move || {
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_jhc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txn_id`
[INFO] [stdout]    --> src/main.rs:280:9
[INFO] [stdout]     |
[INFO] [stdout] 280 |     let mut txn_id = 0; // clock
[INFO] [stdout]     |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_txn_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txsc`
[INFO] [stdout]    --> src/main.rs:285:9
[INFO] [stdout]     |
[INFO] [stdout] 285 |     let txsc = txc.clone();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_txsc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `txsm`
[INFO] [stdout]    --> src/main.rs:286:9
[INFO] [stdout]     |
[INFO] [stdout] 286 |     let txsm = txc.clone();
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_txsm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `jhc`
[INFO] [stdout]    --> src/main.rs:298:9
[INFO] [stdout]     |
[INFO] [stdout] 298 |     let jhc = thread::spawn(move || {
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_jhc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `CentralGossip`, `MeshGossip`, `GossipCntr`, and `SwitchPhase` are never constructed
[INFO] [stdout]    --> src/main.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 151 | enum Task {
[INFO] [stdout]     |      ---- variants in this enum
[INFO] [stdout] 152 |     CentralGossip,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 153 |     MeshGossip,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 154 |     GossipCntr,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 155 |     SwitchPhase,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Int` is never constructed
[INFO] [stdout]    --> src/main.rs:160:5
[INFO] [stdout]     |
[INFO] [stdout] 158 | enum Evt {
[INFO] [stdout]     |      --- variant in this enum
[INFO] [stdout] 159 |     Ext(Msg),
[INFO] [stdout] 160 |     Int(Task),
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `CentralGossip`, `MeshGossip`, `GossipCntr`, and `SwitchPhase` are never constructed
[INFO] [stdout]    --> src/main.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 151 | enum Task {
[INFO] [stdout]     |      ---- variants in this enum
[INFO] [stdout] 152 |     CentralGossip,
[INFO] [stdout]     |     ^^^^^^^^^^^^^
[INFO] [stdout] 153 |     MeshGossip,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 154 |     GossipCntr,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 155 |     SwitchPhase,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Int` is never constructed
[INFO] [stdout]    --> src/main.rs:160:5
[INFO] [stdout]     |
[INFO] [stdout] 158 | enum Evt {
[INFO] [stdout]     |      --- variant in this enum
[INFO] [stdout] 159 |     Ext(Msg),
[INFO] [stdout] 160 |     Int(Task),
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:545:33
[INFO] [stdout]     |
[INFO] [stdout] 545 | ...                   msg_to_replic.send(&mut stdout);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 545 |                                 let _ = msg_to_replic.send(&mut stdout);
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:545:33
[INFO] [stdout]     |
[INFO] [stdout] 545 | ...                   msg_to_replic.send(&mut stdout);
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 545 |                                 let _ = msg_to_replic.send(&mut stdout);
[INFO] [stdout]     |                                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.40s
[INFO] running `Command { std: "docker" "inspect" "6eeb46de0466b5b3a298f89eaba1ec1321132b66d9057c6c3ae371b522cd0297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6eeb46de0466b5b3a298f89eaba1ec1321132b66d9057c6c3ae371b522cd0297", kill_on_drop: false }`
[INFO] [stdout] 6eeb46de0466b5b3a298f89eaba1ec1321132b66d9057c6c3ae371b522cd0297
