[INFO] fetching crate heap-vec 0.1.0...
[INFO] checking heap-vec-0.1.0 against master#d62d3f7fa9a91d933213cc10e20e740608983f64 for pr-77015
[INFO] extracting crate heap-vec 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate heap-vec 0.1.0 on toolchain d62d3f7fa9a91d933213cc10e20e740608983f64
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate heap-vec 0.1.0
[INFO] finished tweaking crates.io crate heap-vec 0.1.0
[INFO] tweaked toml for crates.io crate heap-vec 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "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" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d9b88a3e7cebe3dbd40a69bdb5e37f7e0555c24edefb8a97db0631f492eb9db6
[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" "d9b88a3e7cebe3dbd40a69bdb5e37f7e0555c24edefb8a97db0631f492eb9db6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d9b88a3e7cebe3dbd40a69bdb5e37f7e0555c24edefb8a97db0631f492eb9db6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9b88a3e7cebe3dbd40a69bdb5e37f7e0555c24edefb8a97db0631f492eb9db6", kill_on_drop: false }`
[INFO] [stdout] d9b88a3e7cebe3dbd40a69bdb5e37f7e0555c24edefb8a97db0631f492eb9db6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+d62d3f7fa9a91d933213cc10e20e740608983f64" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fb0328a2c3d7fc3573b00fae4578f397775d970db316c17a7ff7965b727c416
[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" "3fb0328a2c3d7fc3573b00fae4578f397775d970db316c17a7ff7965b727c416", kill_on_drop: false }`
[INFO] [stderr]     Checking heap-vec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `test`
[INFO] [stdout]   --> src/lib.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |             test: u8
[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 0.52s
[INFO] running `Command { std: "docker" "inspect" "3fb0328a2c3d7fc3573b00fae4578f397775d970db316c17a7ff7965b727c416", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fb0328a2c3d7fc3573b00fae4578f397775d970db316c17a7ff7965b727c416", kill_on_drop: false }`
[INFO] [stdout] 3fb0328a2c3d7fc3573b00fae4578f397775d970db316c17a7ff7965b727c416