[INFO] fetching crate rflow 0.1.0...
[INFO] checking rflow-0.1.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate rflow 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate rflow 0.1.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc1/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate rflow 0.1.0
[INFO] finished tweaking crates.io crate rflow 0.1.0
[INFO] tweaked toml for crates.io crate rflow 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 64 packages to latest compatible versions
[INFO] [stderr]       Adding addr2line v0.22.0 (latest: v0.24.1)
[INFO] [stderr]       Adding darling v0.13.4 (latest: v0.20.10)
[INFO] [stderr]       Adding darling_core v0.13.4 (latest: v0.20.10)
[INFO] [stderr]       Adding darling_macro v0.13.4 (latest: v0.20.10)
[INFO] [stderr]       Adding gimli v0.29.0 (latest: v0.31.0)
[INFO] [stderr]       Adding hermit-abi v0.3.9 (latest: v0.4.0)
[INFO] [stderr]       Adding miniz_oxide v0.7.4 (latest: v0.8.0)
[INFO] [stderr]       Adding nix v0.27.1 (latest: v0.29.0)
[INFO] [stderr]       Adding strsim v0.10.0 (latest: v0.11.1)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.2+wasi-0.2.1)
[INFO] [stderr]       Adding windows-sys v0.52.0 (latest: v0.59.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded linux-futex v1.0.0
[INFO] [stderr]   Downloaded parking_lot_rt v0.12.1
[INFO] [stderr]   Downloaded bma-ts v0.1.14
[INFO] [stderr]   Downloaded object-id v0.1.4
[INFO] [stderr]   Downloaded rtsc v0.3.2
[INFO] [stderr]   Downloaded rtsc-derive v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6556bc7799382d3fc1d1c6daae4b4ebf859388d3330cba1aa1010b9ac527ef57
[INFO] running `Command { std: "docker" "start" "-a" "6556bc7799382d3fc1d1c6daae4b4ebf859388d3330cba1aa1010b9ac527ef57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6556bc7799382d3fc1d1c6daae4b4ebf859388d3330cba1aa1010b9ac527ef57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6556bc7799382d3fc1d1c6daae4b4ebf859388d3330cba1aa1010b9ac527ef57", kill_on_drop: false }`
[INFO] [stdout] 6556bc7799382d3fc1d1c6daae4b4ebf859388d3330cba1aa1010b9ac527ef57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f031f3ca3c3d45efe9e86f48e4acd067ea5df1c3c5ce6248c1b59d1c9443bc8
[INFO] running `Command { std: "docker" "start" "-a" "5f031f3ca3c3d45efe9e86f48e4acd067ea5df1c3c5ce6248c1b59d1c9443bc8", kill_on_drop: false }`
[INFO] [stderr]     Checking object-id v0.1.4
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking nix v0.27.1
[INFO] [stderr]     Checking linux-futex v1.0.0
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling pin-project-internal v1.1.5
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking parking_lot_rt v0.12.1
[INFO] [stderr]     Checking bma-ts v0.1.14
[INFO] [stderr]     Checking pin-project v1.1.5
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling rtsc-derive v0.1.0
[INFO] [stderr]     Checking rtsc v0.3.2
[INFO] [stderr]     Checking rflow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.24s
[INFO] running `Command { std: "docker" "inspect" "5f031f3ca3c3d45efe9e86f48e4acd067ea5df1c3c5ce6248c1b59d1c9443bc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f031f3ca3c3d45efe9e86f48e4acd067ea5df1c3c5ce6248c1b59d1c9443bc8", kill_on_drop: false }`
[INFO] [stdout] 5f031f3ca3c3d45efe9e86f48e4acd067ea5df1c3c5ce6248c1b59d1c9443bc8