[INFO] cloning repository https://github.com/zhangyut/rquark
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zhangyut/rquark" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhangyut%2Frquark", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhangyut%2Frquark'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 68753a0df2eb6b92d69314a521ca6086411cf4a0
[INFO] checking zhangyut/rquark against 1.95.0-beta.7 for beta-1.95-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhangyut%2Frquark" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zhangyut/rquark
[INFO] finished tweaking git repo https://github.com/zhangyut/rquark
[INFO] tweaked toml for git repo https://github.com/zhangyut/rquark written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zhangyut/rquark on toolchain 1.95.0-beta.7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0-beta.7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zhangyut/rquark 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" "+1.95.0-beta.7" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0-beta.7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8a48b7a892ffed974edb334467a8228ab56bd6f769c40c4462ae7713618caf6
[INFO] running `Command { std: "docker" "start" "-a" "c8a48b7a892ffed974edb334467a8228ab56bd6f769c40c4462ae7713618caf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8a48b7a892ffed974edb334467a8228ab56bd6f769c40c4462ae7713618caf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8a48b7a892ffed974edb334467a8228ab56bd6f769c40c4462ae7713618caf6", kill_on_drop: false }`
[INFO] [stdout] c8a48b7a892ffed974edb334467a8228ab56bd6f769c40c4462ae7713618caf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0-beta.7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2ea1b4042f6164e114aeb7ecec779ae07d566eb3d616f1c1decb4405eeb6d37
[INFO] running `Command { std: "docker" "start" "-a" "a2ea1b4042f6164e114aeb7ecec779ae07d566eb3d616f1c1decb4405eeb6d37", kill_on_drop: false }`
[INFO] [stderr]     Checking rquark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `user` is never read
[INFO] [stdout]  --> src/task.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Task<'a, T> {
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 2 |     id: u64,
[INFO] [stdout] 3 |     user: &'a str,
[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 `clear_cmd` and `len` are never used
[INFO] [stdout]   --> src/task.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl<'a, T> Task<'a, T> {
[INFO] [stdout]    | ----------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn clear_cmd(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn len(&self) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_json` is never used
[INFO] [stdout]   --> src/task.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub trait RawResult {
[INFO] [stdout]    |           --------- method in this trait
[INFO] [stdout] 30 |     fn to_str(&self) -> &str;
[INFO] [stdout] 31 |     fn to_json(&self) -> &str;
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get_id` and `get_code` are never used
[INFO] [stdout]   --> src/task.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl<T: RawResult> TaskResult<T> {
[INFO] [stdout]    | -------------------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn get_id(&self) -> &u64 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     fn get_code(&self) -> &u8 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `succeed_with_result` is never used
[INFO] [stdout]   --> src/task.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn succeed_with_result<T: RawResult>(id: u64, result: T) -> TaskResult<T> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `string` is never used
[INFO] [stdout]    --> src/task.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout]  99 |     impl MyCmd {
[INFO] [stdout]     |     ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 103 |         fn string(&self) -> String {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `myRet` should have a snake case name
[INFO] [stdout]    --> src/task.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let myRet = MyResult::new(err_msg);
[INFO] [stdout]     |             ^^^^^ help: convert the identifier to snake case: `my_ret`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` (part of `#[warn(nonstandard_style)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Task` is never constructed
[INFO] [stdout]  --> src/task.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Task<'a, T> {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `add_cmd`, `clear_cmd`, `at`, and `len` are never used
[INFO] [stdout]   --> src/task.rs:8:8
[INFO] [stdout]    |
[INFO] [stdout]  7 | impl<'a, T> Task<'a, T> {
[INFO] [stdout]    | ----------------------- associated items in this implementation
[INFO] [stdout]  8 |     fn new(id: u64, user: &'a str) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn add_cmd(&mut self, cmd: T) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     fn clear_cmd(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 21 |     fn at(&self, i: usize) -> &T {
[INFO] [stdout]    |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |     fn len(&self) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `RawResult` is never used
[INFO] [stdout]   --> src/task.rs:29:11
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub trait RawResult {
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TaskResult` is never constructed
[INFO] [stdout]   --> src/task.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 | pub struct TaskResult<T: RawResult> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `get_id`, `get_code`, `get_result`, and `result_to_str` are never used
[INFO] [stdout]   --> src/task.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl<T: RawResult> TaskResult<T> {
[INFO] [stdout]    | -------------------------------- associated items in this implementation
[INFO] [stdout] 41 |     fn new(id: u64, code: u8, result: T) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     fn get_id(&self) -> &u64 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 51 |     fn get_code(&self) -> &u8 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     fn get_result(&self) -> &T {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     fn result_to_str(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `EmptyResult` is never constructed
[INFO] [stdout]   --> src/task.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub struct EmptyResult<'a> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/task.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 71 | impl<'a> EmptyResult<'a> {
[INFO] [stdout]    | ------------------------ associated function in this implementation
[INFO] [stdout] 72 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `succeed` is never used
[INFO] [stdout]   --> src/task.rs:85:4
[INFO] [stdout]    |
[INFO] [stdout] 85 | fn succeed<'a>(id: u64) -> TaskResult<EmptyResult<'a>> {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `succeed_with_result` is never used
[INFO] [stdout]   --> src/task.rs:88:4
[INFO] [stdout]    |
[INFO] [stdout] 88 | fn succeed_with_result<T: RawResult>(id: u64, result: T) -> TaskResult<T> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "a2ea1b4042f6164e114aeb7ecec779ae07d566eb3d616f1c1decb4405eeb6d37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2ea1b4042f6164e114aeb7ecec779ae07d566eb3d616f1c1decb4405eeb6d37", kill_on_drop: false }`
[INFO] [stdout] a2ea1b4042f6164e114aeb7ecec779ae07d566eb3d616f1c1decb4405eeb6d37
