[INFO] fetching crate cell 0.1.8...
[INFO] checking cell-0.1.8 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate cell 0.1.8 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate cell 0.1.8 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 cell 0.1.8
[INFO] finished tweaking crates.io crate cell 0.1.8
[INFO] tweaked toml for crates.io crate cell 0.1.8 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8bfe45a28940dcf958ce8febb5ab04da0140415efa9d3d990c8db31dd199847f
[INFO] running `Command { std: "docker" "start" "-a" "8bfe45a28940dcf958ce8febb5ab04da0140415efa9d3d990c8db31dd199847f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bfe45a28940dcf958ce8febb5ab04da0140415efa9d3d990c8db31dd199847f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bfe45a28940dcf958ce8febb5ab04da0140415efa9d3d990c8db31dd199847f", kill_on_drop: false }`
[INFO] [stdout] 8bfe45a28940dcf958ce8febb5ab04da0140415efa9d3d990c8db31dd199847f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c3a2b47bd0a57118030f109996fe328926bce208b593b272a352fdac459f1b59
[INFO] running `Command { std: "docker" "start" "-a" "c3a2b47bd0a57118030f109996fe328926bce208b593b272a352fdac459f1b59", kill_on_drop: false }`
[INFO] [stderr]     Checking cell v0.1.8 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `val`
[INFO] [stdout]    --> tests/cell.rs:367:3
[INFO] [stdout]     |
[INFO] [stdout] 367 |   val: u64,
[INFO] [stdout]     |   ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "c3a2b47bd0a57118030f109996fe328926bce208b593b272a352fdac459f1b59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3a2b47bd0a57118030f109996fe328926bce208b593b272a352fdac459f1b59", kill_on_drop: false }`
[INFO] [stdout] c3a2b47bd0a57118030f109996fe328926bce208b593b272a352fdac459f1b59