[INFO] cloning repository https://github.com/jmcelwain/raft [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jmcelwain/raft" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmcelwain%2Fraft", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmcelwain%2Fraft'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] c0f34eb3af067f85f598185904eba36ab1b16633 [INFO] checking jmcelwain/raft against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmcelwain%2Fraft" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jmcelwain/raft on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jmcelwain/raft [INFO] finished tweaking git repo https://github.com/jmcelwain/raft [INFO] tweaked toml for git repo https://github.com/jmcelwain/raft written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/jmcelwain/raft 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] eaa0dacc1fa73af2e412f7fde62ded591e52896f27384f8bfca397f6ce4c01de [INFO] running `Command { std: "docker" "start" "-a" "eaa0dacc1fa73af2e412f7fde62ded591e52896f27384f8bfca397f6ce4c01de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "eaa0dacc1fa73af2e412f7fde62ded591e52896f27384f8bfca397f6ce4c01de", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eaa0dacc1fa73af2e412f7fde62ded591e52896f27384f8bfca397f6ce4c01de", kill_on_drop: false }` [INFO] [stdout] eaa0dacc1fa73af2e412f7fde62ded591e52896f27384f8bfca397f6ce4c01de [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dd7982e0564e2e6d8dd7a73960589ca2f52c1749d75dc11d0a6b51a0ad9e56d0 [INFO] running `Command { std: "docker" "start" "-a" "dd7982e0564e2e6d8dd7a73960589ca2f52c1749d75dc11d0a6b51a0ad9e56d0", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking rand_core v0.2.1 [INFO] [stderr] Checking libc v0.2.42 [INFO] [stderr] Checking bitflags v1.0.3 [INFO] [stderr] Checking rand v0.5.3 [INFO] [stderr] Checking uuid v0.7.1 [INFO] [stderr] Checking raft v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/main.rs:188:25 [INFO] [stdout] | [INFO] [stdout] 188 | Err(err) => panic!("Error!") [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `err` [INFO] [stdout] --> src/main.rs:188:25 [INFO] [stdout] | [INFO] [stdout] 188 | Err(err) => panic!("Error!") [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_err` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id`, `from`, `to`, and `response` are never read [INFO] [stdout] --> src/main.rs:64:5 [INFO] [stdout] | [INFO] [stdout] 63 | pub struct VoteResponse { [INFO] [stdout] | ------------ fields in this struct [INFO] [stdout] 64 | id: Uuid, [INFO] [stdout] | ^^ [INFO] [stdout] 65 | from: NodeId, [INFO] [stdout] | ^^^^ [INFO] [stdout] 66 | to: NodeId, [INFO] [stdout] | ^^ [INFO] [stdout] 67 | response: bool, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `VoteResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `log`, `current_term`, `voted_for`, `commit_index`, and `last_applied` are never read [INFO] [stdout] --> src/main.rs:90:5 [INFO] [stdout] | [INFO] [stdout] 85 | pub struct Raft { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 90 | log: Vec>, [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 93 | current_term: u8, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 94 | voted_for: NodeId, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 97 | commit_index: u8, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 98 | last_applied: u8, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `NoopIO` is never constructed [INFO] [stdout] --> src/main.rs:124:8 [INFO] [stdout] | [INFO] [stdout] 124 | struct NoopIO {} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/main.rs:127:12 [INFO] [stdout] | [INFO] [stdout] 126 | impl NoopIO { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 127 | pub fn new() -> NoopIO { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `next_index` and `match_index` are never read [INFO] [stdout] --> src/main.rs:215:5 [INFO] [stdout] | [INFO] [stdout] 213 | struct Leader { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 214 | state: State, [INFO] [stdout] 215 | next_index: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 216 | match_index: u8, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `leader_id` is never read [INFO] [stdout] --> src/main.rs:243:5 [INFO] [stdout] | [INFO] [stdout] 242 | struct Follower { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 243 | leader_id: Option, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `id`, `from`, `to`, and `response` are never read [INFO] [stdout] --> src/main.rs:64:5 [INFO] [stdout] | [INFO] [stdout] 63 | pub struct VoteResponse { [INFO] [stdout] | ------------ fields in this struct [INFO] [stdout] 64 | id: Uuid, [INFO] [stdout] | ^^ [INFO] [stdout] 65 | from: NodeId, [INFO] [stdout] | ^^^^ [INFO] [stdout] 66 | to: NodeId, [INFO] [stdout] | ^^ [INFO] [stdout] 67 | response: bool, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `VoteResponse` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `log`, `current_term`, `voted_for`, `commit_index`, and `last_applied` are never read [INFO] [stdout] --> src/main.rs:90:5 [INFO] [stdout] | [INFO] [stdout] 85 | pub struct Raft { [INFO] [stdout] | ---- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 90 | log: Vec>, [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 93 | current_term: u8, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 94 | voted_for: NodeId, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 97 | commit_index: u8, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] 98 | last_applied: u8, [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `NoopIO` is never constructed [INFO] [stdout] --> src/main.rs:124:8 [INFO] [stdout] | [INFO] [stdout] 124 | struct NoopIO {} [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/main.rs:127:12 [INFO] [stdout] | [INFO] [stdout] 126 | impl NoopIO { [INFO] [stdout] | ----------- associated function in this implementation [INFO] [stdout] 127 | pub fn new() -> NoopIO { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `next_index` and `match_index` are never read [INFO] [stdout] --> src/main.rs:215:5 [INFO] [stdout] | [INFO] [stdout] 213 | struct Leader { [INFO] [stdout] | ------ fields in this struct [INFO] [stdout] 214 | state: State, [INFO] [stdout] 215 | next_index: u8, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 216 | match_index: u8, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `leader_id` is never read [INFO] [stdout] --> src/main.rs:243:5 [INFO] [stdout] | [INFO] [stdout] 242 | struct Follower { [INFO] [stdout] | -------- field in this struct [INFO] [stdout] 243 | leader_id: Option, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | candidate.request_vote(2); [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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 26 | let _ = candidate.request_vote(2); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:184:25 [INFO] [stdout] | [INFO] [stdout] 184 | stream.read(&mut buf); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 184 | let _ = stream.read(&mut buf); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:186:25 [INFO] [stdout] | [INFO] [stdout] 186 | tx.send(Message::Debug); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 186 | let _ = tx.send(Message::Debug); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:197:9 [INFO] [stdout] | [INFO] [stdout] 197 | socket.write_all(vote_request.to_buf()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 197 | let _ = socket.write_all(vote_request.to_buf()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:26:5 [INFO] [stdout] | [INFO] [stdout] 26 | candidate.request_vote(2); [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)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 26 | let _ = candidate.request_vote(2); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:184:25 [INFO] [stdout] | [INFO] [stdout] 184 | stream.read(&mut buf); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 184 | let _ = stream.read(&mut buf); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:186:25 [INFO] [stdout] | [INFO] [stdout] 186 | tx.send(Message::Debug); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 186 | let _ = tx.send(Message::Debug); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:197:9 [INFO] [stdout] | [INFO] [stdout] 197 | socket.write_all(vote_request.to_buf()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 197 | let _ = socket.write_all(vote_request.to_buf()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.96s [INFO] running `Command { std: "docker" "inspect" "dd7982e0564e2e6d8dd7a73960589ca2f52c1749d75dc11d0a6b51a0ad9e56d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dd7982e0564e2e6d8dd7a73960589ca2f52c1749d75dc11d0a6b51a0ad9e56d0", kill_on_drop: false }` [INFO] [stdout] dd7982e0564e2e6d8dd7a73960589ca2f52c1749d75dc11d0a6b51a0ad9e56d0