[INFO] fetching crate tower-ready-cache 0.3.1...
[INFO] checking tower-ready-cache-0.3.1 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate tower-ready-cache 0.3.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate tower-ready-cache 0.3.1 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tower-ready-cache 0.3.1
[INFO] finished tweaking crates.io crate tower-ready-cache 0.3.1
[INFO] tweaked toml for crates.io crate tower-ready-cache 0.3.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 25 packages to latest compatible versions
[INFO] [stderr]       Adding bytes v0.5.6 (latest: v1.7.1)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.5)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.4.0)
[INFO] [stderr]       Adding pin-project v0.4.30 (latest: v1.1.5)
[INFO] [stderr]       Adding pin-project-internal v0.4.30 (latest: v1.1.5)
[INFO] [stderr]       Adding pin-project-lite v0.1.12 (latest: v0.2.14)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.76)
[INFO] [stderr]       Adding tokio v0.2.25 (latest: v1.39.3)
[INFO] [stderr]       Adding tokio-test v0.2.1 (latest: v0.4.4)
[INFO] [stderr]       Adding tower-test v0.3.0 (latest: v0.4.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tower-test v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 43ceef6b799b4a292c91214eecdd1430179ae4db6943676e7d131ca753031f66
[INFO] running `Command { std: "docker" "start" "-a" "43ceef6b799b4a292c91214eecdd1430179ae4db6943676e7d131ca753031f66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "43ceef6b799b4a292c91214eecdd1430179ae4db6943676e7d131ca753031f66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "43ceef6b799b4a292c91214eecdd1430179ae4db6943676e7d131ca753031f66", kill_on_drop: false }`
[INFO] [stdout] 43ceef6b799b4a292c91214eecdd1430179ae4db6943676e7d131ca753031f66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c19d3e47cf15367763cb809dcf7685f9ec8ef149e1fad8edcc4e7541e44c9cf
[INFO] running `Command { std: "docker" "start" "-a" "7c19d3e47cf15367763cb809dcf7685f9ec8ef149e1fad8edcc4e7541e44c9cf", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking pin-project-lite v0.1.12
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling pin-project-internal v0.4.30
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking tower-service v0.3.3
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking tower-layer v0.3.3
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking tokio v0.2.25
[INFO] [stderr]     Checking tokio-test v0.2.1
[INFO] [stderr]     Checking tower-ready-cache v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking pin-project v0.4.30
[INFO] [stderr]     Checking tower-test v0.3.0
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.92s
[INFO] running `Command { std: "docker" "inspect" "7c19d3e47cf15367763cb809dcf7685f9ec8ef149e1fad8edcc4e7541e44c9cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c19d3e47cf15367763cb809dcf7685f9ec8ef149e1fad8edcc4e7541e44c9cf", kill_on_drop: false }`
[INFO] [stdout] 7c19d3e47cf15367763cb809dcf7685f9ec8ef149e1fad8edcc4e7541e44c9cf