[INFO] fetching crate vermilion 0.0.0-unreleased...
[INFO] checking vermilion-0.0.0-unreleased against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate vermilion 0.0.0-unreleased into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate vermilion 0.0.0-unreleased on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vermilion 0.0.0-unreleased
[INFO] finished tweaking crates.io crate vermilion 0.0.0-unreleased
[INFO] tweaked toml for crates.io crate vermilion 0.0.0-unreleased written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate vermilion 0.0.0-unreleased already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "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-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4b764d3fa98eeb085df35095ab56c089db63f640e682ef89fc4da653e21cf308
[INFO] running `Command { std: "docker" "start" "-a" "4b764d3fa98eeb085df35095ab56c089db63f640e682ef89fc4da653e21cf308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4b764d3fa98eeb085df35095ab56c089db63f640e682ef89fc4da653e21cf308", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4b764d3fa98eeb085df35095ab56c089db63f640e682ef89fc4da653e21cf308", kill_on_drop: false }`
[INFO] [stdout] 4b764d3fa98eeb085df35095ab56c089db63f640e682ef89fc4da653e21cf308
[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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c5e5f2c0792bd43b8edab8df6973d19b69862a4b7e749a9b1db245a1e5b490d
[INFO] running `Command { std: "docker" "start" "-a" "2c5e5f2c0792bd43b8edab8df6973d19b69862a4b7e749a9b1db245a1e5b490d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking vermilion v0.0.0-unreleased (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `Command { std: "docker" "inspect" "2c5e5f2c0792bd43b8edab8df6973d19b69862a4b7e749a9b1db245a1e5b490d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c5e5f2c0792bd43b8edab8df6973d19b69862a4b7e749a9b1db245a1e5b490d", kill_on_drop: false }`
[INFO] [stdout] 2c5e5f2c0792bd43b8edab8df6973d19b69862a4b7e749a9b1db245a1e5b490d