[INFO] fetching crate destruct-derive 0.1.2...
[INFO] checking destruct-derive-0.1.2 against beta for pr-78714
[INFO] extracting crate destruct-derive 0.1.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate destruct-derive 0.1.2 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate destruct-derive 0.1.2
[INFO] finished tweaking crates.io crate destruct-derive 0.1.2
[INFO] tweaked toml for crates.io crate destruct-derive 0.1.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1d6626477b5783f8f271d4a506b1f880bc2de547937be8679fca9f66380a9ee
[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" "f1d6626477b5783f8f271d4a506b1f880bc2de547937be8679fca9f66380a9ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1d6626477b5783f8f271d4a506b1f880bc2de547937be8679fca9f66380a9ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1d6626477b5783f8f271d4a506b1f880bc2de547937be8679fca9f66380a9ee", kill_on_drop: false }`
[INFO] [stdout] f1d6626477b5783f8f271d4a506b1f880bc2de547937be8679fca9f66380a9ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 1200f35c3234f2acc90787b8cc3efcc1e1900f59b15ca5df225830bf56ced195
[INFO] running `Command { std: "docker" "start" "-a" "1200f35c3234f2acc90787b8cc3efcc1e1900f59b15ca5df225830bf56ced195", kill_on_drop: false }`
[INFO] [stderr]     Checking destruct-derive v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `brace_token`
[INFO] [stdout]    --> src/lib.rs:339:5
[INFO] [stdout]     |
[INFO] [stdout] 339 |     brace_token: syn::token::Paren,
[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] [stdout] warning: field is never read: `brace_token`
[INFO] [stdout]    --> src/lib.rs:339:5
[INFO] [stdout]     |
[INFO] [stdout] 339 |     brace_token: syn::token::Paren,
[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 1.26s
[INFO] running `Command { std: "docker" "inspect" "1200f35c3234f2acc90787b8cc3efcc1e1900f59b15ca5df225830bf56ced195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1200f35c3234f2acc90787b8cc3efcc1e1900f59b15ca5df225830bf56ced195", kill_on_drop: false }`
[INFO] [stdout] 1200f35c3234f2acc90787b8cc3efcc1e1900f59b15ca5df225830bf56ced195