[INFO] cloning repository https://github.com/study-core/my-rust-coding-studing
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/study-core/my-rust-coding-studing" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudy-core%2Fmy-rust-coding-studing", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstudy-core%2Fmy-rust-coding-studing'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] efe4c16988d7f84a96c014a6691aa2c3e82141cd
[INFO] testing study-core/my-rust-coding-studing 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%2Fstudy-core%2Fmy-rust-coding-studing" "/workspace/builds/worker-48/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-48/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/study-core/my-rust-coding-studing 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/study-core/my-rust-coding-studing
[INFO] finished tweaking git repo https://github.com/study-core/my-rust-coding-studing
[INFO] tweaked toml for git repo https://github.com/study-core/my-rust-coding-studing written to /workspace/builds/worker-48/source/Cargo.toml
[INFO] crate git repo https://github.com/study-core/my-rust-coding-studing 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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] e8afc2cf596aad127d00767525e62681672dc4149902e60bbdf1e5e0da8d015a
[INFO] running `Command { std: "docker" "start" "-a" "e8afc2cf596aad127d00767525e62681672dc4149902e60bbdf1e5e0da8d015a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e8afc2cf596aad127d00767525e62681672dc4149902e60bbdf1e5e0da8d015a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8afc2cf596aad127d00767525e62681672dc4149902e60bbdf1e5e0da8d015a", kill_on_drop: false }`
[INFO] [stdout] e8afc2cf596aad127d00767525e62681672dc4149902e60bbdf1e5e0da8d015a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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] d8059db276f5314e2715d8911e61ae8f07cebd820a3885b576cc6a31eae6d839
[INFO] running `Command { std: "docker" "start" "-a" "d8059db276f5314e2715d8911e61ae8f07cebd820a3885b576cc6a31eae6d839", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling first_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/lib.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn new() -> Counter {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.02s
[INFO] running `Command { std: "docker" "inspect" "d8059db276f5314e2715d8911e61ae8f07cebd820a3885b576cc6a31eae6d839", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d8059db276f5314e2715d8911e61ae8f07cebd820a3885b576cc6a31eae6d839", kill_on_drop: false }`
[INFO] [stdout] d8059db276f5314e2715d8911e61ae8f07cebd820a3885b576cc6a31eae6d839
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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] b62507a921b053bdb54e8d619bbf4acea6d1b97967b9d840461032d76ee6de41
[INFO] running `Command { std: "docker" "start" "-a" "b62507a921b053bdb54e8d619bbf4acea6d1b97967b9d840461032d76ee6de41", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/lib.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn new() -> Counter {
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling first_game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.38s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/first_game-d3fa2d0579d1c0bc)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/first_game-4b3865c2a76825c5)
[INFO] running `Command { std: "docker" "inspect" "b62507a921b053bdb54e8d619bbf4acea6d1b97967b9d840461032d76ee6de41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b62507a921b053bdb54e8d619bbf4acea6d1b97967b9d840461032d76ee6de41", kill_on_drop: false }`
[INFO] [stdout] b62507a921b053bdb54e8d619bbf4acea6d1b97967b9d840461032d76ee6de41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-48/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] 8795251e3486f1a44454a22a93a007346a67f654a537726bae58fd2b566ca53f
[INFO] running `Command { std: "docker" "start" "-a" "8795251e3486f1a44454a22a93a007346a67f654a537726bae58fd2b566ca53f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> src/lib.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 |     fn new() -> Counter {
[INFO] [stderr]   |        ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `first_game` (lib) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.44s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/first_game-d3fa2d0579d1c0bc)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test calling_next_directly ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/first_game-4b3865c2a76825c5)
[INFO] [stdout] test using_other_iterator_trait_methods ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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] [stderr]    Doc-tests first_game
[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 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8795251e3486f1a44454a22a93a007346a67f654a537726bae58fd2b566ca53f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8795251e3486f1a44454a22a93a007346a67f654a537726bae58fd2b566ca53f", kill_on_drop: false }`
[INFO] [stdout] 8795251e3486f1a44454a22a93a007346a67f654a537726bae58fd2b566ca53f