[INFO] cloning repository https://github.com/LOKESH-999/mpsc-channels
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LOKESH-999/mpsc-channels" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLOKESH-999%2Fmpsc-channels", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLOKESH-999%2Fmpsc-channels'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9751b9d50573bb820f5c2a975c990cfa94c2ae22
[INFO] checking LOKESH-999/mpsc-channels/9751b9d50573bb820f5c2a975c990cfa94c2ae22 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLOKESH-999%2Fmpsc-channels" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LOKESH-999/mpsc-channels on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LOKESH-999/mpsc-channels
[INFO] finished tweaking git repo https://github.com/LOKESH-999/mpsc-channels
[INFO] tweaked toml for git repo https://github.com/LOKESH-999/mpsc-channels written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/LOKESH-999/mpsc-channels 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 041381773d54dfea66def86117d7c7b31771be6bbaa3cee6210b80f3a711f87e
[INFO] running `Command { std: "docker" "start" "-a" "041381773d54dfea66def86117d7c7b31771be6bbaa3cee6210b80f3a711f87e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "041381773d54dfea66def86117d7c7b31771be6bbaa3cee6210b80f3a711f87e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "041381773d54dfea66def86117d7c7b31771be6bbaa3cee6210b80f3a711f87e", kill_on_drop: false }`
[INFO] [stdout] 041381773d54dfea66def86117d7c7b31771be6bbaa3cee6210b80f3a711f87e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7367d23503b50196ec573ba2da6654c04e9e79064dfba415d3948234c2d7405
[INFO] running `Command { std: "docker" "start" "-a" "b7367d23503b50196ec573ba2da6654c04e9e79064dfba415d3948234c2d7405", kill_on_drop: false }`
[INFO] [stderr]     Checking channels v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `mpsc`
[INFO] [stdout]  --> src/main.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::{mpsc};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mpsc`
[INFO] [stdout]  --> src/main.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::sync::{mpsc};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/channel.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let b=Base{
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]   --> src/channel.rs:29:13
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let b=Base{
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]  --> src/channel.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Base<T>{
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     data:VecDeque<T>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]   --> src/channel.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Channel;
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/channel.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Channel{
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 26 |     pub fn new<T>()->(Sender<T>,Reciver<T>){
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clone` is never used
[INFO] [stdout]   --> src/channel.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl<T> Sender<T>{
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 60 |     pub fn clone(&self)->Self{
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]  --> src/channel.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub struct Base<T>{
[INFO] [stdout]   |            ---- field in this struct
[INFO] [stdout] 8 |     data:VecDeque<T>,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Channel` is never constructed
[INFO] [stdout]   --> src/channel.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Channel;
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/channel.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | impl Channel{
[INFO] [stdout]    | ------------ associated function in this implementation
[INFO] [stdout] 26 |     pub fn new<T>()->(Sender<T>,Reciver<T>){
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `clone` is never used
[INFO] [stdout]   --> src/channel.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 59 | impl<T> Sender<T>{
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] 60 |     pub fn clone(&self)->Self{
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "b7367d23503b50196ec573ba2da6654c04e9e79064dfba415d3948234c2d7405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7367d23503b50196ec573ba2da6654c04e9e79064dfba415d3948234c2d7405", kill_on_drop: false }`
[INFO] [stdout] b7367d23503b50196ec573ba2da6654c04e9e79064dfba415d3948234c2d7405