[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 try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhangyut%2Frquark" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zhangyut/rquark on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-9/source/Cargo.toml
[INFO] crate git repo https://github.com/zhangyut/rquark already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c170fe85f91c9275b5e6b09eb5eb0929e090861bd7a834d5012598bff49c7fa
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7c170fe85f91c9275b5e6b09eb5eb0929e090861bd7a834d5012598bff49c7fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c170fe85f91c9275b5e6b09eb5eb0929e090861bd7a834d5012598bff49c7fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c170fe85f91c9275b5e6b09eb5eb0929e090861bd7a834d5012598bff49c7fa", kill_on_drop: false }`
[INFO] [stdout] 7c170fe85f91c9275b5e6b09eb5eb0929e090861bd7a834d5012598bff49c7fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4065a2b5d357528e672aaa295d2334c0d4e20c9ca09f2cfa8e16c7a4d18e989e
[INFO] running `Command { std: "docker" "start" "-a" "4065a2b5d357528e672aaa295d2334c0d4e20c9ca09f2cfa8e16c7a4d18e989e", kill_on_drop: false }`
[INFO] [stderr]     Checking rquark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `user`
[INFO] [stdout]  --> src/task.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     user: &'a str,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `clear_cmd`
[INFO] [stdout]   --> src/task.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn clear_cmd(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/task.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn len(&self) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_id`
[INFO] [stdout]   --> src/task.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn get_id(&self) -> &u64 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_code`
[INFO] [stdout]   --> src/task.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_code(&self) -> &u8 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `succeed_with_result`
[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: associated function is never used: `string`
[INFO] [stdout]    --> src/task.rs:103:12
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Task`
[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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/task.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn new(id: u64, user: &'a str) -> Self {
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `add_cmd`
[INFO] [stdout]   --> src/task.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn add_cmd(&mut self, cmd: T) {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `clear_cmd`
[INFO] [stdout]   --> src/task.rs:18:8
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fn clear_cmd(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `at`
[INFO] [stdout]   --> src/task.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn at(&self, i: usize) -> &T {
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]   --> src/task.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn len(&self) -> usize {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TaskResult`
[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 function is never used: `new`
[INFO] [stdout]   --> src/task.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn new(id: u64, code: u8, result: T) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_id`
[INFO] [stdout]   --> src/task.rs:48:8
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn get_id(&self) -> &u64 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_code`
[INFO] [stdout]   --> src/task.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn get_code(&self) -> &u8 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_result`
[INFO] [stdout]   --> src/task.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn get_result(&self) -> &T {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `result_to_str`
[INFO] [stdout]   --> src/task.rs:57:8
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn result_to_str(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/task.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `succeed`
[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 is never used: `succeed_with_result`
[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: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "4065a2b5d357528e672aaa295d2334c0d4e20c9ca09f2cfa8e16c7a4d18e989e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4065a2b5d357528e672aaa295d2334c0d4e20c9ca09f2cfa8e16c7a4d18e989e", kill_on_drop: false }`
[INFO] [stdout] 4065a2b5d357528e672aaa295d2334c0d4e20c9ca09f2cfa8e16c7a4d18e989e