[INFO] cloning repository https://github.com/kvverti/cgc-strategy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kvverti/cgc-strategy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvverti%2Fcgc-strategy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvverti%2Fcgc-strategy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 89416a990b6dd318d2b14c2d55bb81ade1baee9d
[INFO] checking kvverti/cgc-strategy against master#818811b3cd1e0ff0d8ef20d5a4cf0b7c079929bc for pr-156114-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkvverti%2Fcgc-strategy" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kvverti/cgc-strategy
[INFO] finished tweaking git repo https://github.com/kvverti/cgc-strategy
[INFO] tweaked toml for git repo https://github.com/kvverti/cgc-strategy written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kvverti/cgc-strategy on toolchain 818811b3cd1e0ff0d8ef20d5a4cf0b7c079929bc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+818811b3cd1e0ff0d8ef20d5a4cf0b7c079929bc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/kvverti/cgc-strategy 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" "+818811b3cd1e0ff0d8ef20d5a4cf0b7c079929bc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+818811b3cd1e0ff0d8ef20d5a4cf0b7c079929bc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1c43094caac7707f0bfb7d5331cc62609017f14ab867f710258b2e9c87f81e1
[INFO] running `Command { std: "docker" "start" "-a" "e1c43094caac7707f0bfb7d5331cc62609017f14ab867f710258b2e9c87f81e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1c43094caac7707f0bfb7d5331cc62609017f14ab867f710258b2e9c87f81e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1c43094caac7707f0bfb7d5331cc62609017f14ab867f710258b2e9c87f81e1", kill_on_drop: false }`
[INFO] [stdout] e1c43094caac7707f0bfb7d5331cc62609017f14ab867f710258b2e9c87f81e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+818811b3cd1e0ff0d8ef20d5a4cf0b7c079929bc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 12d28d388a0e4ed6e265f6fdb2a91ccd0891100dcb7ac0c7e9ba902ab33c4a28
[INFO] running `Command { std: "docker" "start" "-a" "12d28d388a0e4ed6e265f6fdb2a91ccd0891100dcb7ac0c7e9ba902ab33c4a28", kill_on_drop: false }`
[INFO] [stderr]     Checking cgc-strategy v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `layout` and `trace` are never read
[INFO] [stdout]   --> src/heap.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct GcVtable {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout]  9 |     /// The size and alignment of the GC allocation.
[INFO] [stdout] 10 |     layout: Layout,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     trace: unsafe fn(NonNull<()>, &TraceContext<'_>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `layout` and `trace` are never read
[INFO] [stdout]   --> src/heap.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  8 | pub struct GcVtable {
[INFO] [stdout]    |            -------- fields in this struct
[INFO] [stdout]  9 |     /// The size and alignment of the GC allocation.
[INFO] [stdout] 10 |     layout: Layout,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 14 |     trace: unsafe fn(NonNull<()>, &TraceContext<'_>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "12d28d388a0e4ed6e265f6fdb2a91ccd0891100dcb7ac0c7e9ba902ab33c4a28", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12d28d388a0e4ed6e265f6fdb2a91ccd0891100dcb7ac0c7e9ba902ab33c4a28", kill_on_drop: false }`
[INFO] [stdout] 12d28d388a0e4ed6e265f6fdb2a91ccd0891100dcb7ac0c7e9ba902ab33c4a28