[INFO] fetching crate implex 0.0.1...
[INFO] checking implex-0.0.1 against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] extracting crate implex 0.0.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate implex 0.0.1 on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2712f796481033f247811b386902dbe615a8ea32870f6b2a751baf1195ea5d19
[INFO] running `Command { std: "docker" "start" "-a" "2712f796481033f247811b386902dbe615a8ea32870f6b2a751baf1195ea5d19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2712f796481033f247811b386902dbe615a8ea32870f6b2a751baf1195ea5d19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2712f796481033f247811b386902dbe615a8ea32870f6b2a751baf1195ea5d19", kill_on_drop: false }`
[INFO] [stdout] 2712f796481033f247811b386902dbe615a8ea32870f6b2a751baf1195ea5d19
[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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8730a99fd6020d6bdea0e758c6093dc00576f2427bae13d6208fc78b97cc7a32
[INFO] running `Command { std: "docker" "start" "-a" "8730a99fd6020d6bdea0e758c6093dc00576f2427bae13d6208fc78b97cc7a32", kill_on_drop: false }`
[INFO] [stderr]     Checking implex v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "8730a99fd6020d6bdea0e758c6093dc00576f2427bae13d6208fc78b97cc7a32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8730a99fd6020d6bdea0e758c6093dc00576f2427bae13d6208fc78b97cc7a32", kill_on_drop: false }`
[INFO] [stdout] 8730a99fd6020d6bdea0e758c6093dc00576f2427bae13d6208fc78b97cc7a32