[INFO] cloning repository https://github.com/rickard1117/yimu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rickard1117/yimu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frickard1117%2Fyimu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frickard1117%2Fyimu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53951f489da9e1664008e849ab606b7dbe65253e
[INFO] checking rickard1117/yimu against master#2a023bf80a6fbd6a06d5460a34eb247b986286ed for pr-143764
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frickard1117%2Fyimu" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/rickard1117/yimu
[INFO] finished tweaking git repo https://github.com/rickard1117/yimu
[INFO] tweaked toml for git repo https://github.com/rickard1117/yimu written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rickard1117/yimu on toolchain 2a023bf80a6fbd6a06d5460a34eb247b986286ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rickard1117/yimu 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" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3e68919e6a0fed5c3e9e12b3649c23288523258d93de62d90f40c190c02e801
[INFO] running `Command { std: "docker" "start" "-a" "b3e68919e6a0fed5c3e9e12b3649c23288523258d93de62d90f40c190c02e801", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3e68919e6a0fed5c3e9e12b3649c23288523258d93de62d90f40c190c02e801", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3e68919e6a0fed5c3e9e12b3649c23288523258d93de62d90f40c190c02e801", kill_on_drop: false }`
[INFO] [stdout] b3e68919e6a0fed5c3e9e12b3649c23288523258d93de62d90f40c190c02e801
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2a023bf80a6fbd6a06d5460a34eb247b986286ed" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3038c582e9b23bd5991fb04c32f1c9e33e016894ed5a5630eeaae32fd8707482
[INFO] running `Command { std: "docker" "start" "-a" "3038c582e9b23bd5991fb04c32f1c9e33e016894ed5a5630eeaae32fd8707482", kill_on_drop: false }`
[INFO] [stderr]     Checking tcp-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Buffer` is never constructed
[INFO] [stdout]  --> src/buffer.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Buffer {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Buffer` is never constructed
[INFO] [stdout]  --> src/buffer.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Buffer {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BUFFER_SIZE` is never used
[INFO] [stdout]  --> src/buffer.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const BUFFER_SIZE: usize = 32;
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `BUFFER_SIZE` is never used
[INFO] [stdout]  --> src/buffer.rs:7:7
[INFO] [stdout]   |
[INFO] [stdout] 7 | const BUFFER_SIZE: usize = 32;
[INFO] [stdout]   |       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `len`, `capacity`, `append`, and `data` are never used
[INFO] [stdout]   --> src/buffer.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Buffer {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new() -> Buffer {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub const fn len(&self) -> usize {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub const fn capacity(&self) -> usize {
[INFO] [stdout]    |                  ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn append(&mut self, slice: &[u8]) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn data(&self) -> &[u8] {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `len`, `capacity`, `append`, and `data` are never used
[INFO] [stdout]   --> src/buffer.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl Buffer {
[INFO] [stdout]    | ----------- associated items in this implementation
[INFO] [stdout] 10 |     pub fn new() -> Buffer {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub const fn len(&self) -> usize {
[INFO] [stdout]    |                  ^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     pub const fn capacity(&self) -> usize {
[INFO] [stdout]    |                  ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn append(&mut self, slice: &[u8]) {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn data(&self) -> &[u8] {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileUtil` is never constructed
[INFO] [stdout]  --> src/file.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct FileUtil {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `write` are never used
[INFO] [stdout]   --> src/file.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl FileUtil {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 9  |     pub fn new(path: &String) -> FileUtil {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn write(&mut self, data: &[u8]) -> std::io::Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `FileUtil` is never constructed
[INFO] [stdout]  --> src/file.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct FileUtil {
[INFO] [stdout]   |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `setOutput` is never used
[INFO] [stdout]   --> src/logger.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Logger {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 13 |     pub fn setOutput(f: fn(&String)) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `write` are never used
[INFO] [stdout]   --> src/file.rs:9:12
[INFO] [stdout]    |
[INFO] [stdout] 8  | impl FileUtil {
[INFO] [stdout]    | ------------- associated items in this implementation
[INFO] [stdout] 9  |     pub fn new(path: &String) -> FileUtil {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 19 |     pub fn write(&mut self, data: &[u8]) -> std::io::Result<()> {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `setOutput` is never used
[INFO] [stdout]   --> src/logger.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Logger {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 13 |     pub fn setOutput(f: fn(&String)) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `TRACE`, `WARN`, `ERROR`, and `FATAL` are never constructed
[INFO] [stdout]   --> src/logger.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub enum LogLevel {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 59 |     TRACE = 1,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     WARN,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 63 |     ERROR,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 64 |     FATAL,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LogLevel` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `DefaultOutput` should have a snake case name
[INFO] [stdout]  --> src/logger.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn DefaultOutput(content: &String) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^ help: convert the identifier to snake case: `default_output`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `TRACE`, `WARN`, `ERROR`, and `FATAL` are never constructed
[INFO] [stdout]   --> src/logger.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub enum LogLevel {
[INFO] [stdout]    |          -------- variants in this enum
[INFO] [stdout] 59 |     TRACE = 1,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     WARN,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 63 |     ERROR,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 64 |     FATAL,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `LogLevel` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `DefaultOutput` should have a snake case name
[INFO] [stdout]  --> src/logger.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn DefaultOutput(content: &String) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^ help: convert the identifier to snake case: `default_output`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `g_log_output` should have an upper case name
[INFO] [stdout]  --> src/logger.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | static mut g_log_output: fn(&String) = DefaultOutput;
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]   |
[INFO] [stdout] 7 - static mut g_log_output: fn(&String) = DefaultOutput;
[INFO] [stdout] 7 + static mut G_LOG_OUTPUT: fn(&String) = DefaultOutput;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `g_log_output` should have an upper case name
[INFO] [stdout]  --> src/logger.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | static mut g_log_output: fn(&String) = DefaultOutput;
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]   |
[INFO] [stdout] 7 - static mut g_log_output: fn(&String) = DefaultOutput;
[INFO] [stdout] 7 + static mut G_LOG_OUTPUT: fn(&String) = DefaultOutput;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `g_log_level` should have an upper case name
[INFO] [stdout]  --> src/logger.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | static mut g_log_level: LogLevel = LogLevel::DEBUG;
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]   |
[INFO] [stdout] 8 - static mut g_log_level: LogLevel = LogLevel::DEBUG;
[INFO] [stdout] 8 + static mut G_LOG_LEVEL: LogLevel = LogLevel::DEBUG;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static variable `g_log_level` should have an upper case name
[INFO] [stdout]  --> src/logger.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | static mut g_log_level: LogLevel = LogLevel::DEBUG;
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout] help: convert the identifier to upper case
[INFO] [stdout]   |
[INFO] [stdout] 8 - static mut g_log_level: LogLevel = LogLevel::DEBUG;
[INFO] [stdout] 8 + static mut G_LOG_LEVEL: LogLevel = LogLevel::DEBUG;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `setOutput` should have a snake case name
[INFO] [stdout]   --> src/logger.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn setOutput(f: fn(&String)) {
[INFO] [stdout]    |            ^^^^^^^^^ help: convert the identifier to snake case: `set_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `setOutput` should have a snake case name
[INFO] [stdout]   --> src/logger.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn setOutput(f: fn(&String)) {
[INFO] [stdout]    |            ^^^^^^^^^ help: convert the identifier to snake case: `set_output`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `setLevel` should have a snake case name
[INFO] [stdout]   --> src/logger.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn setLevel(level: LogLevel) {
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case: `set_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `setLevel` should have a snake case name
[INFO] [stdout]   --> src/logger.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn setLevel(level: LogLevel) {
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case: `set_level`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "3038c582e9b23bd5991fb04c32f1c9e33e016894ed5a5630eeaae32fd8707482", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3038c582e9b23bd5991fb04c32f1c9e33e016894ed5a5630eeaae32fd8707482", kill_on_drop: false }`
[INFO] [stdout] 3038c582e9b23bd5991fb04c32f1c9e33e016894ed5a5630eeaae32fd8707482