[INFO] fetching crate fff 0.3.1...
[INFO] checking fff-0.3.1 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate fff 0.3.1 into /workspace/builds/worker-64/source
[INFO] validating manifest of crates.io crate fff 0.3.1 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fff 0.3.1
[INFO] finished tweaking crates.io crate fff 0.3.1
[INFO] tweaked toml for crates.io crate fff 0.3.1 written to /workspace/builds/worker-64/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d541a498a8d23ebfe7b05008ef368ff2497d89f05a397c65f88f42e31e68574
[INFO] running `Command { std: "docker" "start" "-a" "2d541a498a8d23ebfe7b05008ef368ff2497d89f05a397c65f88f42e31e68574", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d541a498a8d23ebfe7b05008ef368ff2497d89f05a397c65f88f42e31e68574", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d541a498a8d23ebfe7b05008ef368ff2497d89f05a397c65f88f42e31e68574", kill_on_drop: false }`
[INFO] [stdout] 2d541a498a8d23ebfe7b05008ef368ff2497d89f05a397c65f88f42e31e68574
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd3fa41efa32dfdfd56705ae8318c092c02594f832a7e38619804bd0cf571e50
[INFO] running `Command { std: "docker" "start" "-a" "cd3fa41efa32dfdfd56705ae8318c092c02594f832a7e38619804bd0cf571e50", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.129
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling fff v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.03s
[INFO] running `Command { std: "docker" "inspect" "cd3fa41efa32dfdfd56705ae8318c092c02594f832a7e38619804bd0cf571e50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd3fa41efa32dfdfd56705ae8318c092c02594f832a7e38619804bd0cf571e50", kill_on_drop: false }`
[INFO] [stdout] cd3fa41efa32dfdfd56705ae8318c092c02594f832a7e38619804bd0cf571e50