[INFO] cloning repository https://github.com/MrRooten/bench_rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MrRooten/bench_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrRooten%2Fbench_rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrRooten%2Fbench_rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 588498aac35e521369601612439cdc2fd177a853
[INFO] checking MrRooten/bench_rs against master#507271bc119683008ec719ecee48814e8ac86c65 for pr-146440
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMrRooten%2Fbench_rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MrRooten/bench_rs
[INFO] finished tweaking git repo https://github.com/MrRooten/bench_rs
[INFO] tweaked toml for git repo https://github.com/MrRooten/bench_rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MrRooten/bench_rs on toolchain 507271bc119683008ec719ecee48814e8ac86c65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MrRooten/bench_rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f0befce35b66047b8c51fe1345bfaf9cefec83dfdcd507fa6c93bab12c15f60
[INFO] running `Command { std: "docker" "start" "-a" "6f0befce35b66047b8c51fe1345bfaf9cefec83dfdcd507fa6c93bab12c15f60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f0befce35b66047b8c51fe1345bfaf9cefec83dfdcd507fa6c93bab12c15f60", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f0befce35b66047b8c51fe1345bfaf9cefec83dfdcd507fa6c93bab12c15f60", kill_on_drop: false }`
[INFO] [stdout] 6f0befce35b66047b8c51fe1345bfaf9cefec83dfdcd507fa6c93bab12c15f60
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+507271bc119683008ec719ecee48814e8ac86c65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 557d2d16348e549bd1712038f736b64b97d43effb23cfa5fc773bd50f62428a6
[INFO] running `Command { std: "docker" "start" "-a" "557d2d16348e549bd1712038f736b64b97d43effb23cfa5fc773bd50f62428a6", kill_on_drop: false }`
[INFO] [stderr]     Checking bench_rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/code_impl/owner_vs_ref.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Small([u8; 8]);
[INFO] [stdout]   |            ----- ^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/code_impl/owner_vs_ref.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Medium([u8; 64]);
[INFO] [stdout]   |            ------ ^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/code_impl/owner_vs_ref.rs:10:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Large([u8; 256]);
[INFO] [stdout]    |            ----- ^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/code_impl/owner_vs_ref.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct VecStruct {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 13 |     data: Vec<u8>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_ownership` is never used
[INFO] [stdout]   --> src/code_impl/owner_vs_ref.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn take_ownership<T>(x: T) -> T {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/code_impl/owner_vs_ref.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Small([u8; 8]);
[INFO] [stdout]   |            ----- ^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> src/code_impl/owner_vs_ref.rs:8:19
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Medium([u8; 64]);
[INFO] [stdout]   |            ------ ^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/code_impl/owner_vs_ref.rs:10:18
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub struct Large([u8; 256]);
[INFO] [stdout]    |            ----- ^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `data` is never read
[INFO] [stdout]   --> src/code_impl/owner_vs_ref.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct VecStruct {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 13 |     data: Vec<u8>,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `take_ownership` is never used
[INFO] [stdout]   --> src/code_impl/owner_vs_ref.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn take_ownership<T>(x: T) -> T {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.53s
[INFO] running `Command { std: "docker" "inspect" "557d2d16348e549bd1712038f736b64b97d43effb23cfa5fc773bd50f62428a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "557d2d16348e549bd1712038f736b64b97d43effb23cfa5fc773bd50f62428a6", kill_on_drop: false }`
[INFO] [stdout] 557d2d16348e549bd1712038f736b64b97d43effb23cfa5fc773bd50f62428a6
