[INFO] fetching crate dune-chain 0.0.0...
[INFO] checking dune-chain-0.0.0 against master#8007b506ac5da629f223b755f5a5391edd5f6d01 for pr-88041
[INFO] extracting crate dune-chain 0.0.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate dune-chain 0.0.0 on toolchain 8007b506ac5da629f223b755f5a5391edd5f6d01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dune-chain 0.0.0
[INFO] finished tweaking crates.io crate dune-chain 0.0.0
[INFO] tweaked toml for crates.io crate dune-chain 0.0.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 997e3dad18d3e97bbee2b3f303a1906f4b5bdb2c2d30b43a1207e0206c8224e5
[INFO] running `Command { std: "docker" "start" "-a" "997e3dad18d3e97bbee2b3f303a1906f4b5bdb2c2d30b43a1207e0206c8224e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "997e3dad18d3e97bbee2b3f303a1906f4b5bdb2c2d30b43a1207e0206c8224e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "997e3dad18d3e97bbee2b3f303a1906f4b5bdb2c2d30b43a1207e0206c8224e5", kill_on_drop: false }`
[INFO] [stdout] 997e3dad18d3e97bbee2b3f303a1906f4b5bdb2c2d30b43a1207e0206c8224e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+8007b506ac5da629f223b755f5a5391edd5f6d01" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f35f0582b2cfe46f247fb978167868bb02ee09ed808bc81718194eb817654ce0
[INFO] running `Command { std: "docker" "start" "-a" "f35f0582b2cfe46f247fb978167868bb02ee09ed808bc81718194eb817654ce0", kill_on_drop: false }`
[INFO] [stderr]     Checking dune-chain v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "f35f0582b2cfe46f247fb978167868bb02ee09ed808bc81718194eb817654ce0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f35f0582b2cfe46f247fb978167868bb02ee09ed808bc81718194eb817654ce0", kill_on_drop: false }`
[INFO] [stdout] f35f0582b2cfe46f247fb978167868bb02ee09ed808bc81718194eb817654ce0