[INFO] cloning repository https://github.com/Abhishek8394/rust-tut-closures
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Abhishek8394/rust-tut-closures" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhishek8394%2Frust-tut-closures", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhishek8394%2Frust-tut-closures'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ba5062402616d4cfeb1cc934e9b2f32acb8eda8
[INFO] testing Abhishek8394/rust-tut-closures against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAbhishek8394%2Frust-tut-closures" "/workspace/builds/worker-27/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-27/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Abhishek8394/rust-tut-closures on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Abhishek8394/rust-tut-closures
[INFO] finished tweaking git repo https://github.com/Abhishek8394/rust-tut-closures
[INFO] tweaked toml for git repo https://github.com/Abhishek8394/rust-tut-closures written to /workspace/builds/worker-27/source/Cargo.toml
[INFO] crate git repo https://github.com/Abhishek8394/rust-tut-closures already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0119acf4c1afe44dbaee103cf08657796a32f5e15608224106b0790d8ee7ec6
[INFO] running `Command { std: "docker" "start" "-a" "e0119acf4c1afe44dbaee103cf08657796a32f5e15608224106b0790d8ee7ec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0119acf4c1afe44dbaee103cf08657796a32f5e15608224106b0790d8ee7ec6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0119acf4c1afe44dbaee103cf08657796a32f5e15608224106b0790d8ee7ec6", kill_on_drop: false }`
[INFO] [stdout] e0119acf4c1afe44dbaee103cf08657796a32f5e15608224106b0790d8ee7ec6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3093c941d8fcd5c01c1614773dc0f913cea318319944d017eb3d3b617e863295
[INFO] running `Command { std: "docker" "start" "-a" "3093c941d8fcd5c01c1614773dc0f913cea318319944d017eb3d3b617e863295", kill_on_drop: false }`
[INFO] [stderr]    Compiling closures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `foo`
[INFO] [stdout]    --> src/main.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let foo = x(String::from("foo"));
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_foo`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `simulated_expensive_calculation`
[INFO] [stdout]   --> src/main.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn simulated_expensive_calculation(intensity: u32) -> u32 {
[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/main.rs:92:8
[INFO] [stdout]    |
[INFO] [stdout] 92 |     fn new() -> Counter{
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `shoes_in_my_size`
[INFO] [stdout]    --> src/main.rs:111:4
[INFO] [stdout]     |
[INFO] [stdout] 111 | fn shoes_in_my_size(shoes: Vec<Shoe>, size: u32) -> Vec<Shoe>{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "3093c941d8fcd5c01c1614773dc0f913cea318319944d017eb3d3b617e863295", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3093c941d8fcd5c01c1614773dc0f913cea318319944d017eb3d3b617e863295", kill_on_drop: false }`
[INFO] [stdout] 3093c941d8fcd5c01c1614773dc0f913cea318319944d017eb3d3b617e863295
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e3c570f54d579a0193b47fcc476e173bb75c140cd614c74a0b054f6b9b83bff3
[INFO] running `Command { std: "docker" "start" "-a" "e3c570f54d579a0193b47fcc476e173bb75c140cd614c74a0b054f6b9b83bff3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling closures v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `foo`
[INFO] [stdout]    --> src/main.rs:117:9
[INFO] [stdout]     |
[INFO] [stdout] 117 |     let foo = x(String::from("foo"));
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_foo`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v1`
[INFO] [stdout]    --> src/main.rs:143:13
[INFO] [stdout]     |
[INFO] [stdout] 143 |         let v1 = cache.value(4);
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_v1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v1`
[INFO] [stdout]    --> src/main.rs:151:13
[INFO] [stdout]     |
[INFO] [stdout] 151 |         let v1 = cache.value("four");
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_v1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:191:13
[INFO] [stdout]     |
[INFO] [stdout] 191 |         let mut counter = Counter::new();
[INFO] [stdout]     |             ----^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `simulated_expensive_calculation`
[INFO] [stdout]   --> src/main.rs:43:4
[INFO] [stdout]    |
[INFO] [stdout] 43 | fn simulated_expensive_calculation(intensity: u32) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.57s
[INFO] running `Command { std: "docker" "inspect" "e3c570f54d579a0193b47fcc476e173bb75c140cd614c74a0b054f6b9b83bff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e3c570f54d579a0193b47fcc476e173bb75c140cd614c74a0b054f6b9b83bff3", kill_on_drop: false }`
[INFO] [stdout] e3c570f54d579a0193b47fcc476e173bb75c140cd614c74a0b054f6b9b83bff3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-27/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 863b83b3cbc3dcd7a39d7ef602f5469ece424b44d9cdd3598bad098a0707ced7
[INFO] running `Command { std: "docker" "start" "-a" "863b83b3cbc3dcd7a39d7ef602f5469ece424b44d9cdd3598bad098a0707ced7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `foo`
[INFO] [stderr]    --> src/main.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |     let foo = x(String::from("foo"));
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_foo`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v1`
[INFO] [stderr]    --> src/main.rs:143:13
[INFO] [stderr]     |
[INFO] [stderr] 143 |         let v1 = cache.value(4);
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_v1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `v1`
[INFO] [stderr]    --> src/main.rs:151:13
[INFO] [stderr]     |
[INFO] [stderr] 151 |         let v1 = cache.value("four");
[INFO] [stderr]     |             ^^ help: if this is intentional, prefix it with an underscore: `_v1`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:191:13
[INFO] [stderr]     |
[INFO] [stderr] 191 |         let mut counter = Counter::new();
[INFO] [stderr]     |             ----^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `simulated_expensive_calculation`
[INFO] [stderr]   --> src/main.rs:43:4
[INFO] [stderr]    |
[INFO] [stderr] 43 | fn simulated_expensive_calculation(intensity: u32) -> u32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `closures` (bin "closures" test) generated 5 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.86s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/closures-a227aa8662d2b053)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::call_with_different_values ... ok
[INFO] [stdout] test tests::call_with_string_values ... ok
[INFO] [stdout] test tests::other_iter_methods_on_counter ... ok
[INFO] [stdout] test tests::calling_next_directly ... ok
[INFO] [stdout] test tests::filters_by_size ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "863b83b3cbc3dcd7a39d7ef602f5469ece424b44d9cdd3598bad098a0707ced7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "863b83b3cbc3dcd7a39d7ef602f5469ece424b44d9cdd3598bad098a0707ced7", kill_on_drop: false }`
[INFO] [stdout] 863b83b3cbc3dcd7a39d7ef602f5469ece424b44d9cdd3598bad098a0707ced7