[INFO] fetching crate union-find 0.3.3...
[INFO] testing union-find-0.3.3 against 1.55.0 for beta-1.56-1
[INFO] extracting crate union-find 0.3.3 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate union-find 0.3.3 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate union-find 0.3.3
[INFO] finished tweaking crates.io crate union-find 0.3.3
[INFO] tweaked toml for crates.io crate union-find 0.3.3 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 27a226a515c0594db43287f35fdbcc99f0962608cbe7d0676ffd89b655f3f694
[INFO] running `Command { std: "docker" "start" "-a" "27a226a515c0594db43287f35fdbcc99f0962608cbe7d0676ffd89b655f3f694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "27a226a515c0594db43287f35fdbcc99f0962608cbe7d0676ffd89b655f3f694", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27a226a515c0594db43287f35fdbcc99f0962608cbe7d0676ffd89b655f3f694", kill_on_drop: false }`
[INFO] [stdout] 27a226a515c0594db43287f35fdbcc99f0962608cbe7d0676ffd89b655f3f694
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f400a3a8b08474176409e21edcb3a14bcace8b7caddde985f82137b94cabdda9
[INFO] running `Command { std: "docker" "start" "-a" "f400a3a8b08474176409e21edcb3a14bcace8b7caddde985f82137b94cabdda9", kill_on_drop: false }`
[INFO] [stderr]    Compiling union-find v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.81s
[INFO] running `Command { std: "docker" "inspect" "f400a3a8b08474176409e21edcb3a14bcace8b7caddde985f82137b94cabdda9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f400a3a8b08474176409e21edcb3a14bcace8b7caddde985f82137b94cabdda9", kill_on_drop: false }`
[INFO] [stdout] f400a3a8b08474176409e21edcb3a14bcace8b7caddde985f82137b94cabdda9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ca3da10d02554e266a1cc4f6e5c2f3e5f866022e42dc9f652ede0f9248a9425d
[INFO] running `Command { std: "docker" "start" "-a" "ca3da10d02554e266a1cc4f6e5c2f3e5f866022e42dc9f652ede0f9248a9425d", kill_on_drop: false }`
[INFO] [stderr]    Compiling union-find v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `Command { std: "docker" "inspect" "ca3da10d02554e266a1cc4f6e5c2f3e5f866022e42dc9f652ede0f9248a9425d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca3da10d02554e266a1cc4f6e5c2f3e5f866022e42dc9f652ede0f9248a9425d", kill_on_drop: false }`
[INFO] [stdout] ca3da10d02554e266a1cc4f6e5c2f3e5f866022e42dc9f652ede0f9248a9425d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c6e78152a6d4bc7c3e8e1585fd9e4598105e42544019580bf11ffba1c008040b
[INFO] running `Command { std: "docker" "start" "-a" "c6e78152a6d4bc7c3e8e1585fd9e4598105e42544019580bf11ffba1c008040b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/union_find-2d14f1914f36c460)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::quick_union::union_find ... ok
[INFO] [stdout] test tests::quick_find::union_find ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests union-find
[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" "c6e78152a6d4bc7c3e8e1585fd9e4598105e42544019580bf11ffba1c008040b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6e78152a6d4bc7c3e8e1585fd9e4598105e42544019580bf11ffba1c008040b", kill_on_drop: false }`
[INFO] [stdout] c6e78152a6d4bc7c3e8e1585fd9e4598105e42544019580bf11ffba1c008040b