[INFO] fetching crate blocking_object_pool 0.1.0...
[INFO] testing blocking_object_pool-0.1.0 against beta-2022-02-22 for beta-1.60-1
[INFO] extracting crate blocking_object_pool 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate blocking_object_pool 0.1.0 on toolchain beta-2022-02-22
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate blocking_object_pool 0.1.0
[INFO] finished tweaking crates.io crate blocking_object_pool 0.1.0
[INFO] tweaked toml for crates.io crate blocking_object_pool 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-02-22" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1931874ea47bedc720d231ae69d10e7b2217ca3ef3c3f7719dbe0d0ccad99631
[INFO] running `Command { std: "docker" "start" "-a" "1931874ea47bedc720d231ae69d10e7b2217ca3ef3c3f7719dbe0d0ccad99631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1931874ea47bedc720d231ae69d10e7b2217ca3ef3c3f7719dbe0d0ccad99631", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1931874ea47bedc720d231ae69d10e7b2217ca3ef3c3f7719dbe0d0ccad99631", kill_on_drop: false }`
[INFO] [stdout] 1931874ea47bedc720d231ae69d10e7b2217ca3ef3c3f7719dbe0d0ccad99631
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62acc141433289492b5cffb68212672247c80e8fcfa78db2b58c6a300d396413
[INFO] running `Command { std: "docker" "start" "-a" "62acc141433289492b5cffb68212672247c80e8fcfa78db2b58c6a300d396413", kill_on_drop: false }`
[INFO] [stderr]    Compiling blocking_object_pool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `b`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     b: i32,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Hello` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/main.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Clone)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.32s
[INFO] running `Command { std: "docker" "inspect" "62acc141433289492b5cffb68212672247c80e8fcfa78db2b58c6a300d396413", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62acc141433289492b5cffb68212672247c80e8fcfa78db2b58c6a300d396413", kill_on_drop: false }`
[INFO] [stdout] 62acc141433289492b5cffb68212672247c80e8fcfa78db2b58c6a300d396413
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a18cb0205889197ec127e3ebc53b19315ba07b9105229dc37161c0c8150eb089
[INFO] running `Command { std: "docker" "start" "-a" "a18cb0205889197ec127e3ebc53b19315ba07b9105229dc37161c0c8150eb089", kill_on_drop: false }`
[INFO] [stderr]    Compiling blocking_object_pool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `b`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     b: i32,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Hello` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/main.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | #[derive(Clone)]
[INFO] [stdout]   |          ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "a18cb0205889197ec127e3ebc53b19315ba07b9105229dc37161c0c8150eb089", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a18cb0205889197ec127e3ebc53b19315ba07b9105229dc37161c0c8150eb089", kill_on_drop: false }`
[INFO] [stdout] a18cb0205889197ec127e3ebc53b19315ba07b9105229dc37161c0c8150eb089
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-02-22" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7678c1a01b29fef664bd8ca53129ac75d685fde3a4bdc6f8df6b4f5cea6b213b
[INFO] running `Command { std: "docker" "start" "-a" "7678c1a01b29fef664bd8ca53129ac75d685fde3a4bdc6f8df6b4f5cea6b213b", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `b`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     b: i32,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Hello` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/main.rs:5:10
[INFO] [stderr]   |
[INFO] [stderr] 5 | #[derive(Clone)]
[INFO] [stderr]   |          ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `blocking_object_pool` (bin "blocking_object_pool" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/blocking_object_pool-0e4e069c232262ca)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test1 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/blocking_object_pool-de3f849397735d49)
[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 blocking_object_pool
[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" "7678c1a01b29fef664bd8ca53129ac75d685fde3a4bdc6f8df6b4f5cea6b213b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7678c1a01b29fef664bd8ca53129ac75d685fde3a4bdc6f8df6b4f5cea6b213b", kill_on_drop: false }`
[INFO] [stdout] 7678c1a01b29fef664bd8ca53129ac75d685fde3a4bdc6f8df6b4f5cea6b213b