[INFO] fetching crate hash32 0.2.1...
[INFO] checking hash32-0.2.1 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050
[INFO] extracting crate hash32 0.2.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate hash32 0.2.1 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hash32 0.2.1
[INFO] finished tweaking crates.io crate hash32 0.2.1
[INFO] tweaked toml for crates.io crate hash32 0.2.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate hash32 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 308c484d9eb4ae0189026bb99b7a320da1104495643e85834ce9e5d8a44d9de8
[INFO] running `Command { std: "docker" "start" "-a" "308c484d9eb4ae0189026bb99b7a320da1104495643e85834ce9e5d8a44d9de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "308c484d9eb4ae0189026bb99b7a320da1104495643e85834ce9e5d8a44d9de8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "308c484d9eb4ae0189026bb99b7a320da1104495643e85834ce9e5d8a44d9de8", kill_on_drop: false }`
[INFO] [stdout] 308c484d9eb4ae0189026bb99b7a320da1104495643e85834ce9e5d8a44d9de8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83becddf931063dc138dfe068c5e8506cf58d57dff67d9056d3ec24a474269a5
[INFO] running `Command { std: "docker" "start" "-a" "83becddf931063dc138dfe068c5e8506cf58d57dff67d9056d3ec24a474269a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking hash32 v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]    Compiling syn v0.13.11
[INFO] [stderr]    Compiling hash32-derive v0.1.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.77s
[INFO] running `Command { std: "docker" "inspect" "83becddf931063dc138dfe068c5e8506cf58d57dff67d9056d3ec24a474269a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83becddf931063dc138dfe068c5e8506cf58d57dff67d9056d3ec24a474269a5", kill_on_drop: false }`
[INFO] [stdout] 83becddf931063dc138dfe068c5e8506cf58d57dff67d9056d3ec24a474269a5