[INFO] fetching crate verifiable-randomness 0.0.0...
[INFO] checking verifiable-randomness-0.0.0 against master#fc81ad22c453776de16acf9938976930cf8c9401 for pr-77325
[INFO] extracting crate verifiable-randomness 0.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate verifiable-randomness 0.0.0 on toolchain fc81ad22c453776de16acf9938976930cf8c9401
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate verifiable-randomness 0.0.0
[INFO] finished tweaking crates.io crate verifiable-randomness 0.0.0
[INFO] tweaked toml for crates.io crate verifiable-randomness 0.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85813b4c717d574aa0b55e7a4250c505347253b7d796cd17eaed8eb709e81cfd
[INFO] running `Command { std: "docker" "start" "-a" "85813b4c717d574aa0b55e7a4250c505347253b7d796cd17eaed8eb709e81cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85813b4c717d574aa0b55e7a4250c505347253b7d796cd17eaed8eb709e81cfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85813b4c717d574aa0b55e7a4250c505347253b7d796cd17eaed8eb709e81cfd", kill_on_drop: false }`
[INFO] [stdout] 85813b4c717d574aa0b55e7a4250c505347253b7d796cd17eaed8eb709e81cfd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 742c012e81a1a398bcbf9ff45de86d50a96c0c1232c89271507dd33cc0e3a471
[INFO] running `Command { std: "docker" "start" "-a" "742c012e81a1a398bcbf9ff45de86d50a96c0c1232c89271507dd33cc0e3a471", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking verifiable-randomness v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "742c012e81a1a398bcbf9ff45de86d50a96c0c1232c89271507dd33cc0e3a471", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "742c012e81a1a398bcbf9ff45de86d50a96c0c1232c89271507dd33cc0e3a471", kill_on_drop: false }`
[INFO] [stdout] 742c012e81a1a398bcbf9ff45de86d50a96c0c1232c89271507dd33cc0e3a471