[INFO] fetching crate tower-load 0.3.0...
[INFO] testing tower-load-0.3.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate tower-load 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate tower-load 0.3.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tower-load 0.3.0
[INFO] finished tweaking crates.io crate tower-load 0.3.0
[INFO] tweaked toml for crates.io crate tower-load 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ed402899d5912dc6b6fdae123fc0d5781119cccf917f211b34d46d864a4b504
[INFO] running `Command { std: "docker" "start" "-a" "4ed402899d5912dc6b6fdae123fc0d5781119cccf917f211b34d46d864a4b504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ed402899d5912dc6b6fdae123fc0d5781119cccf917f211b34d46d864a4b504", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ed402899d5912dc6b6fdae123fc0d5781119cccf917f211b34d46d864a4b504", kill_on_drop: false }`
[INFO] [stdout] 4ed402899d5912dc6b6fdae123fc0d5781119cccf917f211b34d46d864a4b504
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c81e4bdc58c31ae8f5bd4dfee7dc6a730e581f9aec38eaa837da95258554383e
[INFO] running `Command { std: "docker" "start" "-a" "c81e4bdc58c31ae8f5bd4dfee7dc6a730e581f9aec38eaa837da95258554383e", kill_on_drop: false }`
[INFO] [stderr]    Compiling pin-project-lite v0.1.12
[INFO] [stderr]    Compiling bytes v0.5.6
[INFO] [stderr]    Compiling tokio-macros v0.2.6
[INFO] [stderr]    Compiling tower-discover v0.3.0
[INFO] [stderr]    Compiling tokio v0.2.25
[INFO] [stderr]    Compiling tower-load v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.92s
[INFO] running `Command { std: "docker" "inspect" "c81e4bdc58c31ae8f5bd4dfee7dc6a730e581f9aec38eaa837da95258554383e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c81e4bdc58c31ae8f5bd4dfee7dc6a730e581f9aec38eaa837da95258554383e", kill_on_drop: false }`
[INFO] [stdout] c81e4bdc58c31ae8f5bd4dfee7dc6a730e581f9aec38eaa837da95258554383e
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55ac6339d34c8de70f16d7326b6caa8079dec44940c214da85782422b3208903
[INFO] running `Command { std: "docker" "start" "-a" "55ac6339d34c8de70f16d7326b6caa8079dec44940c214da85782422b3208903", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-task v0.3.21
[INFO] [stderr]    Compiling futures-util v0.3.21
[INFO] [stderr]    Compiling tokio-test v0.2.1
[INFO] [stderr]    Compiling tower-load v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.15s
[INFO] running `Command { std: "docker" "inspect" "55ac6339d34c8de70f16d7326b6caa8079dec44940c214da85782422b3208903", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55ac6339d34c8de70f16d7326b6caa8079dec44940c214da85782422b3208903", kill_on_drop: false }`
[INFO] [stdout] 55ac6339d34c8de70f16d7326b6caa8079dec44940c214da85782422b3208903
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 20ebd3e0081f4379acc6933ad3b1ab8c110664516b0e5447b513980b72f34a6d
[INFO] running `Command { std: "docker" "start" "-a" "20ebd3e0081f4379acc6933ad3b1ab8c110664516b0e5447b513980b72f34a6d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tower_load-6eef82157ef4a3f0)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test peak_ewma::tests::compound_decay ... ok
[INFO] [stdout] test peak_ewma::tests::nanos ... ok
[INFO] [stdout] test pending_requests::tests::instrumented ... ok
[INFO] [stdout] test peak_ewma::tests::default_decay ... ok
[INFO] [stdout] test pending_requests::tests::default ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tower-load
[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" "20ebd3e0081f4379acc6933ad3b1ab8c110664516b0e5447b513980b72f34a6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20ebd3e0081f4379acc6933ad3b1ab8c110664516b0e5447b513980b72f34a6d", kill_on_drop: false }`
[INFO] [stdout] 20ebd3e0081f4379acc6933ad3b1ab8c110664516b0e5447b513980b72f34a6d