[INFO] cloning repository https://github.com/KalitaAlexey/test_return_self
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/KalitaAlexey/test_return_self" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKalitaAlexey%2Ftest_return_self", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKalitaAlexey%2Ftest_return_self'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c9d8d101bb93c2a67a1aa085ab90a1c69ca68d81
[INFO] checking KalitaAlexey/test_return_self against master#36b21637e93b038453924d3c66821089e71d8baa for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FKalitaAlexey%2Ftest_return_self" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/KalitaAlexey/test_return_self
[INFO] finished tweaking git repo https://github.com/KalitaAlexey/test_return_self
[INFO] tweaked toml for git repo https://github.com/KalitaAlexey/test_return_self written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/KalitaAlexey/test_return_self on toolchain 36b21637e93b038453924d3c66821089e71d8baa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/KalitaAlexey/test_return_self 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" "+36b21637e93b038453924d3c66821089e71d8baa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3561f94dd75ed1b1713931be6be63ddde74d0ef2363e662ad68518f699de7102
[INFO] running `Command { std: "docker" "start" "-a" "3561f94dd75ed1b1713931be6be63ddde74d0ef2363e662ad68518f699de7102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3561f94dd75ed1b1713931be6be63ddde74d0ef2363e662ad68518f699de7102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3561f94dd75ed1b1713931be6be63ddde74d0ef2363e662ad68518f699de7102", kill_on_drop: false }`
[INFO] [stdout] 3561f94dd75ed1b1713931be6be63ddde74d0ef2363e662ad68518f699de7102
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01b3220cff4da142b08fc8ae5587a73d301368226e931f5625445426c740ef69
[INFO] running `Command { std: "docker" "start" "-a" "01b3220cff4da142b08fc8ae5587a73d301368226e931f5625445426c740ef69", kill_on_drop: false }`
[INFO] [stderr]     Checking test_return_self v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `bytes` is never read
[INFO] [stdout]    --> benches/bench.rs:13:21
[INFO] [stdout]     |
[INFO] [stdout] 11  |                   struct Data {
[INFO] [stdout]     |                          ---- field in this struct
[INFO] [stdout] 12  |                       a: u64,
[INFO] [stdout] 13  |                       bytes: [u8; $size],
[INFO] [stdout]     |                       ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 136 | / create_benches!(
[INFO] [stdout] 137 | |     test_16: 16,
[INFO] [stdout] 138 | |     test_32: 32,
[INFO] [stdout] 139 | |     test_64: 64,
[INFO] [stdout] ...   |
[INFO] [stdout] 143 | |     test_1024: 1024
[INFO] [stdout] 144 | | );
[INFO] [stdout]     | |_- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `create_benches` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "01b3220cff4da142b08fc8ae5587a73d301368226e931f5625445426c740ef69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01b3220cff4da142b08fc8ae5587a73d301368226e931f5625445426c740ef69", kill_on_drop: false }`
[INFO] [stdout] 01b3220cff4da142b08fc8ae5587a73d301368226e931f5625445426c740ef69