[INFO] cloning repository https://github.com/anookinov-training-ground/rust_iterators
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anookinov-training-ground/rust_iterators" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanookinov-training-ground%2Frust_iterators", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanookinov-training-ground%2Frust_iterators'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a54e91825cfbc6b2b3ea516d34ae801eef3fc65
[INFO] testing anookinov-training-ground/rust_iterators against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanookinov-training-ground%2Frust_iterators" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anookinov-training-ground/rust_iterators on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anookinov-training-ground/rust_iterators
[INFO] finished tweaking git repo https://github.com/anookinov-training-ground/rust_iterators
[INFO] tweaked toml for git repo https://github.com/anookinov-training-ground/rust_iterators written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/anookinov-training-ground/rust_iterators already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a23a63fbe3ec2234cfb59d0ef2aebcdb6a5a6dbba85f72a0c45efef4d8b1e929
[INFO] running `Command { std: "docker" "start" "-a" "a23a63fbe3ec2234cfb59d0ef2aebcdb6a5a6dbba85f72a0c45efef4d8b1e929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a23a63fbe3ec2234cfb59d0ef2aebcdb6a5a6dbba85f72a0c45efef4d8b1e929", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a23a63fbe3ec2234cfb59d0ef2aebcdb6a5a6dbba85f72a0c45efef4d8b1e929", kill_on_drop: false }`
[INFO] [stdout] a23a63fbe3ec2234cfb59d0ef2aebcdb6a5a6dbba85f72a0c45efef4d8b1e929
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 270b14e4b3335d621fad39691d0d8f5ad796d11eef4a84d063616052d23d3932
[INFO] running `Command { std: "docker" "start" "-a" "270b14e4b3335d621fad39691d0d8f5ad796d11eef4a84d063616052d23d3932", kill_on_drop: false }`
[INFO] [stderr]    Compiling iterators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `shoes_in_size`
[INFO] [stdout]  --> src/lib.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn shoes_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[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/lib.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new() -> Counter {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.92s
[INFO] running `Command { std: "docker" "inspect" "270b14e4b3335d621fad39691d0d8f5ad796d11eef4a84d063616052d23d3932", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "270b14e4b3335d621fad39691d0d8f5ad796d11eef4a84d063616052d23d3932", kill_on_drop: false }`
[INFO] [stdout] 270b14e4b3335d621fad39691d0d8f5ad796d11eef4a84d063616052d23d3932
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 470fc0502f4c0109fcb54477814b96e0a42ab47a99d30dee106e734724aeb213
[INFO] running `Command { std: "docker" "start" "-a" "470fc0502f4c0109fcb54477814b96e0a42ab47a99d30dee106e734724aeb213", kill_on_drop: false }`
[INFO] [stdout] warning: function is never used: `shoes_in_size`
[INFO] [stdout]  --> src/lib.rs:7:4
[INFO] [stdout]   |
[INFO] [stdout] 7 | fn shoes_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling iterators v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib.rs:16:8
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn new() -> Counter {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/iterators-4afee485cd9956d9)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/iterators-8df7df2ec69644d3)
[INFO] running `Command { std: "docker" "inspect" "470fc0502f4c0109fcb54477814b96e0a42ab47a99d30dee106e734724aeb213", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "470fc0502f4c0109fcb54477814b96e0a42ab47a99d30dee106e734724aeb213", kill_on_drop: false }`
[INFO] [stdout] 470fc0502f4c0109fcb54477814b96e0a42ab47a99d30dee106e734724aeb213
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 76d1c9059daa4309f34a84b11f2eb058bcfab06c82a84381a452e38e66237625
[INFO] running `Command { std: "docker" "start" "-a" "76d1c9059daa4309f34a84b11f2eb058bcfab06c82a84381a452e38e66237625", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `shoes_in_size`
[INFO] [stderr]  --> src/lib.rs:7:4
[INFO] [stderr]   |
[INFO] [stderr] 7 | fn shoes_in_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stderr]   |    ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/lib.rs:16:8
[INFO] [stderr]    |
[INFO] [stderr] 16 |     fn new() -> Counter {
[INFO] [stderr]    |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `iterators` (lib) generated 2 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/iterators-4afee485cd9956d9)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::calling_next_directly ... ok
[INFO] [stdout] test tests::filters_by_size ... ok
[INFO] [stdout] test tests::using_other_iterator_trait_methods ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/iterators-8df7df2ec69644d3)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::iterator_demonstration ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests iterators
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "76d1c9059daa4309f34a84b11f2eb058bcfab06c82a84381a452e38e66237625", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76d1c9059daa4309f34a84b11f2eb058bcfab06c82a84381a452e38e66237625", kill_on_drop: false }`
[INFO] [stdout] 76d1c9059daa4309f34a84b11f2eb058bcfab06c82a84381a452e38e66237625