[INFO] fetching crate tallystick 0.3.1...
[INFO] checking tallystick-0.3.1 against beta for pr-78714
[INFO] extracting crate tallystick 0.3.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate tallystick 0.3.1 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 tallystick 0.3.1
[INFO] finished tweaking crates.io crate tallystick 0.3.1
[INFO] tweaked toml for crates.io crate tallystick 0.3.1 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 64aa443ddd5e1226b4d5e4d678cd9fa7c6e760657a8e76702040a072eebc0a12
[INFO] running `Command { std: "docker" "start" "-a" "64aa443ddd5e1226b4d5e4d678cd9fa7c6e760657a8e76702040a072eebc0a12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64aa443ddd5e1226b4d5e4d678cd9fa7c6e760657a8e76702040a072eebc0a12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64aa443ddd5e1226b4d5e4d678cd9fa7c6e760657a8e76702040a072eebc0a12", kill_on_drop: false }`
[INFO] [stdout] 64aa443ddd5e1226b4d5e4d678cd9fa7c6e760657a8e76702040a072eebc0a12
[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] [stdout] 97e80d336fb82709be537182a3731ef4a41f675e4675b94525cb27f495552d4c
[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" "97e80d336fb82709be537182a3731ef4a41f675e4675b94525cb27f495552d4c", kill_on_drop: false }`
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]    Compiling derive_more v0.99.11
[INFO] [stderr]     Checking ahash v0.2.19
[INFO] [stderr]     Checking hashbrown v0.6.3
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr]     Checking tallystick v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> benches/benchmark.rs:159:9
[INFO] [stdout]     |
[INFO] [stdout] 159 |         tally.add(&vote);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.31s
[INFO] running `Command { std: "docker" "inspect" "97e80d336fb82709be537182a3731ef4a41f675e4675b94525cb27f495552d4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97e80d336fb82709be537182a3731ef4a41f675e4675b94525cb27f495552d4c", kill_on_drop: false }`
[INFO] [stdout] 97e80d336fb82709be537182a3731ef4a41f675e4675b94525cb27f495552d4c