[INFO] fetching crate yield 0.0.0...
[INFO] checking yield-0.0.0 against master#7dc9ff5c629753b6930ecfe9a0446538b8e25fb7 for pr-85387
[INFO] extracting crate yield 0.0.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate yield 0.0.0 on toolchain 7dc9ff5c629753b6930ecfe9a0446538b8e25fb7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yield 0.0.0
[INFO] finished tweaking crates.io crate yield 0.0.0
[INFO] tweaked toml for crates.io crate yield 0.0.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate yield 0.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c8b07abeb3cacf422bd1a08233b0bae8368ae49cf36b86d7a218503cb3ce134c
[INFO] running `Command { std: "docker" "start" "-a" "c8b07abeb3cacf422bd1a08233b0bae8368ae49cf36b86d7a218503cb3ce134c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8b07abeb3cacf422bd1a08233b0bae8368ae49cf36b86d7a218503cb3ce134c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8b07abeb3cacf422bd1a08233b0bae8368ae49cf36b86d7a218503cb3ce134c", kill_on_drop: false }`
[INFO] [stdout] c8b07abeb3cacf422bd1a08233b0bae8368ae49cf36b86d7a218503cb3ce134c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4a3bedda446df286a7b3c5a88eb1579e2eaa8b69bce8ee57d0f387046a9072a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d4a3bedda446df286a7b3c5a88eb1579e2eaa8b69bce8ee57d0f387046a9072a", kill_on_drop: false }`
[INFO] [stderr]     Checking yield v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "d4a3bedda446df286a7b3c5a88eb1579e2eaa8b69bce8ee57d0f387046a9072a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4a3bedda446df286a7b3c5a88eb1579e2eaa8b69bce8ee57d0f387046a9072a", kill_on_drop: false }`
[INFO] [stdout] d4a3bedda446df286a7b3c5a88eb1579e2eaa8b69bce8ee57d0f387046a9072a