[INFO] cloning repository https://github.com/xeusteerapat/traits-basket
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xeusteerapat/traits-basket" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxeusteerapat%2Ftraits-basket", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxeusteerapat%2Ftraits-basket'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b904734374029af29b9a7fdede91fb5c25078bf
[INFO] checking xeusteerapat/traits-basket against a621e2b446eafb53c7a8569f225e0b8cc2429a68 for pr-162600
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxeusteerapat%2Ftraits-basket" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/xeusteerapat/traits-basket
[INFO] finished tweaking git repo https://github.com/xeusteerapat/traits-basket
[INFO] tweaked toml for git repo https://github.com/xeusteerapat/traits-basket written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/xeusteerapat/traits-basket on toolchain a621e2b446eafb53c7a8569f225e0b8cc2429a68
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/xeusteerapat/traits-basket 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" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "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-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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] 97f0370fc9151e40fb4bb0d056b20f12146a9ef74eddfdd0699d692f662e603b
[INFO] running `Command { std: "docker" "start" "97f0370fc9151e40fb4bb0d056b20f12146a9ef74eddfdd0699d692f662e603b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97f0370fc9151e40fb4bb0d056b20f12146a9ef74eddfdd0699d692f662e603b", 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" "97f0370fc9151e40fb4bb0d056b20f12146a9ef74eddfdd0699d692f662e603b" "/opt/rustwide/cargo-home/bin/cargo" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97f0370fc9151e40fb4bb0d056b20f12146a9ef74eddfdd0699d692f662e603b", 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" "97f0370fc9151e40fb4bb0d056b20f12146a9ef74eddfdd0699d692f662e603b" "/opt/rustwide/cargo-home/bin/cargo" "+a621e2b446eafb53c7a8569f225e0b8cc2429a68" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking traits-basket v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `second_basket`
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let second_basket = Basket::new(10);
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_second_basket`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `third_basket`
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let third_basket = Basket::new(true);
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_third_basket`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let s1 = Stack::new(vec![1, 2, 3]);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get` and `is_empty` are never used
[INFO] [stdout]  --> src/container.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Container<T> {
[INFO] [stdout]   |           --------- methods in this trait
[INFO] [stdout] 2 |     fn get(&mut self) -> Option<T>; // abstract method, there is no default implementation
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 3 |     fn put(&mut self, item: T); // abstract method
[INFO] [stdout] 4 |     fn is_empty(&self) -> bool; // abstract method
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `second_basket`
[INFO] [stdout]   --> src/main.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let second_basket = Basket::new(10);
[INFO] [stdout]    |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_second_basket`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `third_basket`
[INFO] [stdout]   --> src/main.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     let third_basket = Basket::new(true);
[INFO] [stdout]    |         ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_third_basket`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s1`
[INFO] [stdout]   --> src/main.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     let s1 = Stack::new(vec![1, 2, 3]);
[INFO] [stdout]    |         ^^ help: if this is intentional, prefix it with an underscore: `_s1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `get` and `is_empty` are never used
[INFO] [stdout]  --> src/container.rs:2:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub trait Container<T> {
[INFO] [stdout]   |           --------- methods in this trait
[INFO] [stdout] 2 |     fn get(&mut self) -> Option<T>; // abstract method, there is no default implementation
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 3 |     fn put(&mut self, item: T); // abstract method
[INFO] [stdout] 4 |     fn is_empty(&self) -> bool; // abstract method
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "97f0370fc9151e40fb4bb0d056b20f12146a9ef74eddfdd0699d692f662e603b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97f0370fc9151e40fb4bb0d056b20f12146a9ef74eddfdd0699d692f662e603b", kill_on_drop: false }`
[INFO] [stdout] 97f0370fc9151e40fb4bb0d056b20f12146a9ef74eddfdd0699d692f662e603b
