[INFO] fetching crate tower-load 0.3.0...
[INFO] testing tower-load-0.3.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate tower-load 0.3.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate tower-load 0.3.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f60e6228eb42eee8cf8bf4bd07989d9ac75027d366f329b514f38ffa4b17856f
[INFO] running `Command { std: "docker" "start" "-a" "f60e6228eb42eee8cf8bf4bd07989d9ac75027d366f329b514f38ffa4b17856f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f60e6228eb42eee8cf8bf4bd07989d9ac75027d366f329b514f38ffa4b17856f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f60e6228eb42eee8cf8bf4bd07989d9ac75027d366f329b514f38ffa4b17856f", kill_on_drop: false }`
[INFO] [stdout] f60e6228eb42eee8cf8bf4bd07989d9ac75027d366f329b514f38ffa4b17856f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 196a2a9d037d4176a3221685f44e8cc9203f4f864d8a7d0c0daa3ba74cac24c9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "196a2a9d037d4176a3221685f44e8cc9203f4f864d8a7d0c0daa3ba74cac24c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling tower-discover v0.3.0
[INFO] [stderr]    Compiling tower-load v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "196a2a9d037d4176a3221685f44e8cc9203f4f864d8a7d0c0daa3ba74cac24c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "196a2a9d037d4176a3221685f44e8cc9203f4f864d8a7d0c0daa3ba74cac24c9", kill_on_drop: false }`
[INFO] [stdout] 196a2a9d037d4176a3221685f44e8cc9203f4f864d8a7d0c0daa3ba74cac24c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5a6e9147a2550a73b106b0d1dcc0df79a01893d9ca08d95eec7596c884063b3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b5a6e9147a2550a73b106b0d1dcc0df79a01893d9ca08d95eec7596c884063b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling tower-load v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "b5a6e9147a2550a73b106b0d1dcc0df79a01893d9ca08d95eec7596c884063b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5a6e9147a2550a73b106b0d1dcc0df79a01893d9ca08d95eec7596c884063b3", kill_on_drop: false }`
[INFO] [stdout] b5a6e9147a2550a73b106b0d1dcc0df79a01893d9ca08d95eec7596c884063b3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f298074d4613f5d290868a4bd66cfa7e8f3148d23abfa01154d804d17077b13c
[INFO] running `Command { std: "docker" "start" "-a" "f298074d4613f5d290868a4bd66cfa7e8f3148d23abfa01154d804d17077b13c", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tower_load-10b755ea0b4d1092)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test peak_ewma::tests::compound_decay ... ok
[INFO] [stdout] test peak_ewma::tests::default_decay ... ok
[INFO] [stdout] test peak_ewma::tests::nanos ... ok
[INFO] [stdout] test pending_requests::tests::instrumented ... ok
[INFO] [stderr]    Doc-tests tower-load
[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] [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" "f298074d4613f5d290868a4bd66cfa7e8f3148d23abfa01154d804d17077b13c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f298074d4613f5d290868a4bd66cfa7e8f3148d23abfa01154d804d17077b13c", kill_on_drop: false }`
[INFO] [stdout] f298074d4613f5d290868a4bd66cfa7e8f3148d23abfa01154d804d17077b13c