[INFO] cloning repository https://github.com/NakadaTokumei/NakadaDB
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NakadaTokumei/NakadaDB" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNakadaTokumei%2FNakadaDB", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNakadaTokumei%2FNakadaDB'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 77bfb11f095442e8e9456d6de3712aa669b15455
[INFO] checking NakadaTokumei/NakadaDB/77bfb11f095442e8e9456d6de3712aa669b15455 against eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNakadaTokumei%2FNakadaDB" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/NakadaTokumei/NakadaDB
[INFO] finished tweaking git repo https://github.com/NakadaTokumei/NakadaDB
[INFO] tweaked toml for git repo https://github.com/NakadaTokumei/NakadaDB written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/NakadaTokumei/NakadaDB on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/NakadaTokumei/NakadaDB 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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: binary `NakadaDB` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /workspace/builds/worker-4-tc1/source/target/.../NakadaDB
[INFO] [stderr]   |                                                  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `nakada-db`, convert `package.name`
[INFO] [stderr]  --> Cargo.toml:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 - name = "NakadaDB"
[INFO] [stderr] 5 + name = "nakada-db"
[INFO] [stderr]   |
[INFO] [stderr] help: to change the binary name to `nakada-db`, specify `bin.name`
[INFO] [stderr]  --> Cargo.toml:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 ~ version = "0.1.0"
[INFO] [stderr] 7 + [[bin]]
[INFO] [stderr] 8 + name = "nakada-db"
[INFO] [stderr] 9 + path = "src/main.rs"
[INFO] [stderr]   |
[INFO] [stderr] warning: `NakadaDB` (manifest) generated 1 warning
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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] 00875ab260b1e57cd746467c8d1d139a091d1c8b18da74eb7aea5562df6ddecb
[INFO] running `Command { std: "docker" "start" "00875ab260b1e57cd746467c8d1d139a091d1c8b18da74eb7aea5562df6ddecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00875ab260b1e57cd746467c8d1d139a091d1c8b18da74eb7aea5562df6ddecb", 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" "00875ab260b1e57cd746467c8d1d139a091d1c8b18da74eb7aea5562df6ddecb" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00875ab260b1e57cd746467c8d1d139a091d1c8b18da74eb7aea5562df6ddecb", 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" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "00875ab260b1e57cd746467c8d1d139a091d1c8b18da74eb7aea5562df6ddecb" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] warning: binary `NakadaDB` should have a kebab-case name
[INFO] [stderr]   |
[INFO] [stderr] 1 | /opt/rustwide/target/.../NakadaDB
[INFO] [stderr]   |                          ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/nakada/server/DBServer.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::thread;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]   = note: `cargo::non_kebab_case_bins` is set to `warn` by default
[INFO] [stderr] help: to change the binary name to `nakada-db`, convert `package.name`
[INFO] [stderr]  --> Cargo.toml:5:8
[INFO] [stderr]   |
[INFO] [stderr] 5 - name = "NakadaDB"
[INFO] [stderr] 5 + name = "nakada-db"
[INFO] [stderr]   |
[INFO] [stderr] help: to change the binary name to `nakada-db`, specify `bin.name`
[INFO] [stderr]  --> Cargo.toml:6:19
[INFO] [stderr]   |
[INFO] [stderr] 6 ~ version = "0.1.0"
[INFO] [stderr] 7 + [[bin]]
[INFO] [stderr] 8 + name = "nakada-db"
[INFO] [stderr] 9 + path = "src/main.rs"
[INFO] [stderr]   |
[INFO] [stderr] warning: `NakadaDB` (manifest) generated 1 warning
[INFO] [stderr]     Checking NakadaDB v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/nakada/server/DBServer.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let mut iter = self.server_thread.into_iter();
[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: `server`
[INFO] [stdout]  --> src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let server = match Server::bind("127.0.0.1:5994") {
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_server`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `NakadaThread` is never used
[INFO] [stdout]  --> src/nakada/server/Thread.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait NakadaThread
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `server_thread` is never read
[INFO] [stdout]   --> src/nakada/server/DBServer.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct ServerThread
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 10 | {
[INFO] [stdout] 11 |     server_thread : Vec<JoinHandle<()>>
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tcp_listener` and `server_thread` are never read
[INFO] [stdout]   --> src/nakada/server/DBServer.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Server
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 37 | {
[INFO] [stdout] 38 |     tcp_listener : TcpListener,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 39 |     server_thread : ServerThread
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Thread` should have a snake case name
[INFO] [stdout]  --> src/nakada/server/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod Thread;
[INFO] [stdout]   |         ^^^^^^ help: convert the identifier to snake case: `thread`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `DBServer` should have a snake case name
[INFO] [stdout]  --> src/nakada/server/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod DBServer;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `dbserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]  --> src/nakada/server/DBServer.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::thread;
[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/nakada/server/DBServer.rs:23:13
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let mut iter = self.server_thread.into_iter();
[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: `server`
[INFO] [stdout]  --> src/main.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let server = match Server::bind("127.0.0.1:5994") {
[INFO] [stdout]   |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_server`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `NakadaThread` is never used
[INFO] [stdout]  --> src/nakada/server/Thread.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub trait NakadaThread
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `server_thread` is never read
[INFO] [stdout]   --> src/nakada/server/DBServer.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct ServerThread
[INFO] [stdout]    |            ------------ field in this struct
[INFO] [stdout] 10 | {
[INFO] [stdout] 11 |     server_thread : Vec<JoinHandle<()>>
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `tcp_listener` and `server_thread` are never read
[INFO] [stdout]   --> src/nakada/server/DBServer.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 36 | pub struct Server
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 37 | {
[INFO] [stdout] 38 |     tcp_listener : TcpListener,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 39 |     server_thread : ServerThread
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `Thread` should have a snake case name
[INFO] [stdout]  --> src/nakada/server/mod.rs:1:9
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub mod Thread;
[INFO] [stdout]   |         ^^^^^^ help: convert the identifier to snake case: `thread`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: module `DBServer` should have a snake case name
[INFO] [stdout]  --> src/nakada/server/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub mod DBServer;
[INFO] [stdout]   |         ^^^^^^^^ help: convert the identifier to snake case: `dbserver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "00875ab260b1e57cd746467c8d1d139a091d1c8b18da74eb7aea5562df6ddecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00875ab260b1e57cd746467c8d1d139a091d1c8b18da74eb7aea5562df6ddecb", kill_on_drop: false }`
[INFO] [stdout] 00875ab260b1e57cd746467c8d1d139a091d1c8b18da74eb7aea5562df6ddecb
