[INFO] fetching crate implex 0.0.1...
[INFO] checking implex-0.0.1 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate implex 0.0.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate implex 0.0.1 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate implex 0.0.1
[INFO] finished tweaking crates.io crate implex 0.0.1
[INFO] tweaked toml for crates.io crate implex 0.0.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47deb97d405cc37a62444779d1e2bf0d6ce6769b75c1780f478419227f4ce7e2
[INFO] running `Command { std: "docker" "start" "-a" "47deb97d405cc37a62444779d1e2bf0d6ce6769b75c1780f478419227f4ce7e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47deb97d405cc37a62444779d1e2bf0d6ce6769b75c1780f478419227f4ce7e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47deb97d405cc37a62444779d1e2bf0d6ce6769b75c1780f478419227f4ce7e2", kill_on_drop: false }`
[INFO] [stdout] 47deb97d405cc37a62444779d1e2bf0d6ce6769b75c1780f478419227f4ce7e2
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 440de13c7e59877dd31c72f6085f234dff9dec1266b4af364c90c394a1691bac
[INFO] running `Command { std: "docker" "start" "-a" "440de13c7e59877dd31c72f6085f234dff9dec1266b4af364c90c394a1691bac", kill_on_drop: false }`
[INFO] [stderr]     Checking implex v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "440de13c7e59877dd31c72f6085f234dff9dec1266b4af364c90c394a1691bac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "440de13c7e59877dd31c72f6085f234dff9dec1266b4af364c90c394a1691bac", kill_on_drop: false }`
[INFO] [stdout] 440de13c7e59877dd31c72f6085f234dff9dec1266b4af364c90c394a1691bac