[INFO] cloning repository https://github.com/sidgaikwad/rust-concurrency-and-parallelism
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sidgaikwad/rust-concurrency-and-parallelism" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsidgaikwad%2Frust-concurrency-and-parallelism", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsidgaikwad%2Frust-concurrency-and-parallelism'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9cee6b8e90477eec94ead6a5a61a51051b2c4e8
[INFO] checking sidgaikwad/rust-concurrency-and-parallelism against try#1779a8680dcd39c56ed600627cf6742ef07ed78c for pr-149045
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsidgaikwad%2Frust-concurrency-and-parallelism" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sidgaikwad/rust-concurrency-and-parallelism
[INFO] finished tweaking git repo https://github.com/sidgaikwad/rust-concurrency-and-parallelism
[INFO] tweaked toml for git repo https://github.com/sidgaikwad/rust-concurrency-and-parallelism written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sidgaikwad/rust-concurrency-and-parallelism on toolchain 1779a8680dcd39c56ed600627cf6742ef07ed78c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sidgaikwad/rust-concurrency-and-parallelism 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" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2705de8c8f281606f9d68ae25c46d7569964165c1e43ffa2586aabc50026bdb2
[INFO] running `Command { std: "docker" "start" "-a" "2705de8c8f281606f9d68ae25c46d7569964165c1e43ffa2586aabc50026bdb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2705de8c8f281606f9d68ae25c46d7569964165c1e43ffa2586aabc50026bdb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2705de8c8f281606f9d68ae25c46d7569964165c1e43ffa2586aabc50026bdb2", kill_on_drop: false }`
[INFO] [stdout] 2705de8c8f281606f9d68ae25c46d7569964165c1e43ffa2586aabc50026bdb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1779a8680dcd39c56ed600627cf6742ef07ed78c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e762253a1f10fb0671dfd12dc67026d1f49ce6a71cd9539d94aed59292ae74c2
[INFO] running `Command { std: "docker" "start" "-a" "e762253a1f10fb0671dfd12dc67026d1f49ce6a71cd9539d94aed59292ae74c2", kill_on_drop: false }`
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking socket2 v0.6.0
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]     Checking tokio v1.47.0
[INFO] [stderr]     Checking rust-concurrency-and-parallelism v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> src/main.rs:1:47
[INFO] [stdout]   |
[INFO] [stdout] 1 | use::std::{thread, time::Duration, sync::Arc, rc::Rc};
[INFO] [stdout]   |                                               ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]  --> src/main.rs:1:47
[INFO] [stdout]   |
[INFO] [stdout] 1 | use::std::{thread, time::Duration, sync::Arc, rc::Rc};
[INFO] [stdout]   |                                               ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `basic_thread_example` is never used
[INFO] [stdout]  --> src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn basic_thread_example() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `basic_thread_example` is never used
[INFO] [stdout]  --> src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn basic_thread_example() {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `basic_async_example` is never used
[INFO] [stdout]   --> src/main.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | async fn basic_async_example () {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `basic_async_example` is never used
[INFO] [stdout]   --> src/main.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | async fn basic_async_example () {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.88s
[INFO] running `Command { std: "docker" "inspect" "e762253a1f10fb0671dfd12dc67026d1f49ce6a71cd9539d94aed59292ae74c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e762253a1f10fb0671dfd12dc67026d1f49ce6a71cd9539d94aed59292ae74c2", kill_on_drop: false }`
[INFO] [stdout] e762253a1f10fb0671dfd12dc67026d1f49ce6a71cd9539d94aed59292ae74c2
