[INFO] cloning repository https://github.com/codepr/ruft
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codepr/ruft" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodepr%2Fruft", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodepr%2Fruft'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d12022bd58ec1988b8ffef5c78a3c029e43bde54
[INFO] checking codepr/ruft against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodepr%2Fruft" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/codepr/ruft
[INFO] finished tweaking git repo https://github.com/codepr/ruft
[INFO] tweaked toml for git repo https://github.com/codepr/ruft written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/codepr/ruft on toolchain 40527f3e444fde1deb361751bdef9b9e11d1b971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/codepr/ruft 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" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking codepr/ruft against 40527f3e444fde1deb361751bdef9b9e11d1b971+rustflags=--cfg crater_hack --force-warn invalid-c-variadic-arguments for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodepr%2Fruft" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/codepr/ruft
[INFO] finished tweaking git repo https://github.com/codepr/ruft
[INFO] tweaked toml for git repo https://github.com/codepr/ruft written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/codepr/ruft on toolchain 40527f3e444fde1deb361751bdef9b9e11d1b971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/codepr/ruft 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" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "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 simplelog v0.10.2
[INFO] [stderr]   Downloaded serde v1.0.221
[INFO] [stderr]   Downloaded serde_core v1.0.221
[INFO] [stderr]   Downloaded serde_derive v1.0.221
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] eced8c808ab4aa98fdd37bee223d6d8237a1d75c5bfa70d62110f03930b0aac6
[INFO] running `Command { std: "docker" "start" "eced8c808ab4aa98fdd37bee223d6d8237a1d75c5bfa70d62110f03930b0aac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eced8c808ab4aa98fdd37bee223d6d8237a1d75c5bfa70d62110f03930b0aac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "eced8c808ab4aa98fdd37bee223d6d8237a1d75c5bfa70d62110f03930b0aac6" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eced8c808ab4aa98fdd37bee223d6d8237a1d75c5bfa70d62110f03930b0aac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid --cfg crater_hack --force-warn invalid-c-variadic-arguments" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "eced8c808ab4aa98fdd37bee223d6d8237a1d75c5bfa70d62110f03930b0aac6" "/opt/rustwide/cargo-home/bin/cargo" "+40527f3e444fde1deb361751bdef9b9e11d1b971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_core v1.0.221
[INFO] [stderr]    Compiling serde v1.0.221
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking simplelog v0.10.2
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling serde_derive v1.0.221
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling async-trait v0.1.89
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking futures-executor v0.3.31
[INFO] [stderr]     Checking futures v0.3.31
[INFO] [stderr]     Checking tokio-stream v0.1.17
[INFO] [stderr]     Checking tokio-retry v0.3.0
[INFO] [stderr]     Checking tokio-util v0.6.10
[INFO] [stderr]     Checking ruft v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `success`
[INFO] [stdout]    --> src/rpc.rs:351:69
[INFO] [stdout]     |
[INFO] [stdout] 351 |                         if let RpcMessage::AppendEntriesReply(term, success) = re {
[INFO] [stdout]     |                                                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_success`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `success`
[INFO] [stdout]    --> src/rpc.rs:351:69
[INFO] [stdout]     |
[INFO] [stdout] 351 |                         if let RpcMessage::AppendEntriesReply(term, success) = re {
[INFO] [stdout]     |                                                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_success`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `last_id`
[INFO] [stdout]    --> src/rpc.rs:512:43
[INFO] [stdout]     |
[INFO] [stdout] 512 |         RpcMessage::RequestVote(term, id, last_id, last_log) => {
[INFO] [stdout]     |                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `last_log`
[INFO] [stdout]    --> src/rpc.rs:512:52
[INFO] [stdout]     |
[INFO] [stdout] 512 |         RpcMessage::RequestVote(term, id, last_id, last_log) => {
[INFO] [stdout]     |                                                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_log`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `last_id`
[INFO] [stdout]    --> src/rpc.rs:512:43
[INFO] [stdout]     |
[INFO] [stdout] 512 |         RpcMessage::RequestVote(term, id, last_id, last_log) => {
[INFO] [stdout]     |                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `last_log`
[INFO] [stdout]    --> src/rpc.rs:512:52
[INFO] [stdout]     |
[INFO] [stdout] 512 |         RpcMessage::RequestVote(term, id, last_id, last_log) => {
[INFO] [stdout]     |                                                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_log`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RpcError` is never constructed
[INFO] [stdout]    --> src/rpc.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | struct RpcError(String);
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `append_entries`, `request_vote_reply`, and `append_entries_reply` are never used
[INFO] [stdout]    --> src/rpc.rs:206:14
[INFO] [stdout]     |
[INFO] [stdout] 199 | trait RaftRpc {
[INFO] [stdout]     |       ------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 206 |     async fn append_entries(
[INFO] [stdout]     |              ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 212 |     async fn request_vote_reply(
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 |     async fn append_entries_reply(
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peers_number` is never used
[INFO] [stdout]    --> src/rpc.rs:248:12
[INFO] [stdout]     |
[INFO] [stdout] 235 | impl TokioRpcClient {
[INFO] [stdout]     | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 248 |     pub fn peers_number(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `term` and `command` are never read
[INFO] [stdout]   --> src/rpc.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     struct LogEntry {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 37 |         // Current term of the command being issued
[INFO] [stdout] 38 |         term: i32,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 39 |         // The actual command to be applied to the state machine
[INFO] [stdout] 40 |         command: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `term` is never read
[INFO] [stdout]   --> src/rpc.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub struct RequestVoteReply {
[INFO] [stdout]    |                ---------------- field in this struct
[INFO] [stdout] 63 |         // Current term for candidate to update itself
[INFO] [stdout] 64 |         pub term: i32,
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AppendEntriesReply` is never constructed
[INFO] [stdout]   --> src/rpc.rs:79:16
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub struct AppendEntriesReply {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `commit_index` and `last_applied` are never read
[INFO] [stdout]    --> src/rpc.rs:99:13
[INFO] [stdout]     |
[INFO] [stdout]  86 |     pub struct Machine {
[INFO] [stdout]     |                ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout]  99 |         pub commit_index: i32,
[INFO] [stdout]     |             ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |         pub last_applied: i32,
[INFO] [stdout]     |             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RpcError` is never constructed
[INFO] [stdout]    --> src/rpc.rs:163:8
[INFO] [stdout]     |
[INFO] [stdout] 163 | struct RpcError(String);
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `append_entries`, `request_vote_reply`, and `append_entries_reply` are never used
[INFO] [stdout]    --> src/rpc.rs:206:14
[INFO] [stdout]     |
[INFO] [stdout] 199 | trait RaftRpc {
[INFO] [stdout]     |       ------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 206 |     async fn append_entries(
[INFO] [stdout]     |              ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 212 |     async fn request_vote_reply(
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 218 |     async fn append_entries_reply(
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `peers_number` is never used
[INFO] [stdout]    --> src/rpc.rs:248:12
[INFO] [stdout]     |
[INFO] [stdout] 235 | impl TokioRpcClient {
[INFO] [stdout]     | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 248 |     pub fn peers_number(&self) -> usize {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `term` and `command` are never read
[INFO] [stdout]   --> src/rpc.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     struct LogEntry {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout] 37 |         // Current term of the command being issued
[INFO] [stdout] 38 |         term: i32,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 39 |         // The actual command to be applied to the state machine
[INFO] [stdout] 40 |         command: String,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `term` is never read
[INFO] [stdout]   --> src/rpc.rs:64:13
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub struct RequestVoteReply {
[INFO] [stdout]    |                ---------------- field in this struct
[INFO] [stdout] 63 |         // Current term for candidate to update itself
[INFO] [stdout] 64 |         pub term: i32,
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `AppendEntriesReply` is never constructed
[INFO] [stdout]   --> src/rpc.rs:79:16
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub struct AppendEntriesReply {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `commit_index` and `last_applied` are never read
[INFO] [stdout]    --> src/rpc.rs:99:13
[INFO] [stdout]     |
[INFO] [stdout]  86 |     pub struct Machine {
[INFO] [stdout]     |                ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout]  99 |         pub commit_index: i32,
[INFO] [stdout]     |             ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |         pub last_applied: i32,
[INFO] [stdout]     |             ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.90s
[INFO] running `Command { std: "docker" "inspect" "eced8c808ab4aa98fdd37bee223d6d8237a1d75c5bfa70d62110f03930b0aac6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eced8c808ab4aa98fdd37bee223d6d8237a1d75c5bfa70d62110f03930b0aac6", kill_on_drop: false }`
[INFO] [stdout] eced8c808ab4aa98fdd37bee223d6d8237a1d75c5bfa70d62110f03930b0aac6
