[INFO] fetching crate tokio-tower 0.7.0-rc4...
[INFO] building tokio-tower-0.7.0-rc4 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate tokio-tower 0.7.0-rc4 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate tokio-tower 0.7.0-rc4
[INFO] finished tweaking crates.io crate tokio-tower 0.7.0-rc4
[INFO] tweaked toml for crates.io crate tokio-tower 0.7.0-rc4 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate tokio-tower 0.7.0-rc4 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 76 packages to latest compatible versions
[INFO] [stderr]       Adding async-bincode v0.6.2 (available: v0.8.0)
[INFO] [stderr]       Adding tower v0.4.13 (available: v0.5.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 274f9a5c6040326a6c2ad44fb8d13bd9e6983bd9d74722751d665fbdaf5530b9
[INFO] running `Command { std: "docker" "start" "-a" "274f9a5c6040326a6c2ad44fb8d13bd9e6983bd9d74722751d665fbdaf5530b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "274f9a5c6040326a6c2ad44fb8d13bd9e6983bd9d74722751d665fbdaf5530b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "274f9a5c6040326a6c2ad44fb8d13bd9e6983bd9d74722751d665fbdaf5530b9", kill_on_drop: false }`
[INFO] [stdout] 274f9a5c6040326a6c2ad44fb8d13bd9e6983bd9d74722751d665fbdaf5530b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d691e0cc0dfea972c0a50805b1d1208cc886f4a3b28e1daa16056a9e84e5a86
[INFO] running `Command { std: "docker" "start" "-a" "7d691e0cc0dfea972c0a50805b1d1208cc886f4a3b28e1daa16056a9e84e5a86", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]    Compiling signal-hook-registry v1.4.6
[INFO] [stderr]    Compiling parking_lot v0.12.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-channel v0.5.15
[INFO] [stderr]    Compiling crossbeam-queue v0.3.12
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling crossbeam v0.8.4
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio v1.47.1
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling tracing v0.1.41
[INFO] [stderr]    Compiling pin-project v1.1.10
[INFO] [stderr]    Compiling tower v0.4.13
[INFO] [stderr]    Compiling tokio-tower v0.7.0-rc4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.93s
[INFO] running `Command { std: "docker" "inspect" "7d691e0cc0dfea972c0a50805b1d1208cc886f4a3b28e1daa16056a9e84e5a86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d691e0cc0dfea972c0a50805b1d1208cc886f4a3b28e1daa16056a9e84e5a86", kill_on_drop: false }`
[INFO] [stdout] 7d691e0cc0dfea972c0a50805b1d1208cc886f4a3b28e1daa16056a9e84e5a86
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fea80232d43c8c523396657d1443f70a515877b5f52afe58152696267d76a8f
[INFO] running `Command { std: "docker" "start" "-a" "8fea80232d43c8c523396657d1443f70a515877b5f52afe58152696267d76a8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling async-bincode v0.6.2
[INFO] [stderr]    Compiling tokio-test v0.4.4
[INFO] [stderr]    Compiling tower-test v0.4.0
[INFO] [stderr]    Compiling tokio-tower v0.7.0-rc4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.46s
[INFO] running `Command { std: "docker" "inspect" "8fea80232d43c8c523396657d1443f70a515877b5f52afe58152696267d76a8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fea80232d43c8c523396657d1443f70a515877b5f52afe58152696267d76a8f", kill_on_drop: false }`
[INFO] [stdout] 8fea80232d43c8c523396657d1443f70a515877b5f52afe58152696267d76a8f