[INFO] fetching crate lightbeam 0.30.0...
[INFO] checking lightbeam-0.30.0 against master#8a497b7181cad4ae66dbd6cc31042b69b6bd0df7 for pr-102474
[INFO] extracting crate lightbeam 0.30.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate lightbeam 0.30.0 on toolchain 8a497b7181cad4ae66dbd6cc31042b69b6bd0df7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8a497b7181cad4ae66dbd6cc31042b69b6bd0df7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lightbeam 0.30.0
[INFO] finished tweaking crates.io crate lightbeam 0.30.0
[INFO] tweaked toml for crates.io crate lightbeam 0.30.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate lightbeam 0.30.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8a497b7181cad4ae66dbd6cc31042b69b6bd0df7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+8a497b7181cad4ae66dbd6cc31042b69b6bd0df7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b3b8b7b09fce0505b3fa9523b55d7c0e6bbf52a3e92dfc3ffee7c2094e5568fd
[INFO] running `Command { std: "docker" "start" "-a" "b3b8b7b09fce0505b3fa9523b55d7c0e6bbf52a3e92dfc3ffee7c2094e5568fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b3b8b7b09fce0505b3fa9523b55d7c0e6bbf52a3e92dfc3ffee7c2094e5568fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3b8b7b09fce0505b3fa9523b55d7c0e6bbf52a3e92dfc3ffee7c2094e5568fd", kill_on_drop: false }`
[INFO] [stdout] b3b8b7b09fce0505b3fa9523b55d7c0e6bbf52a3e92dfc3ffee7c2094e5568fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:3d1cd00eb6e6ea2a7969240779edeaeff35b24be85036c63b883ba933028a15f" "/opt/rustwide/cargo-home/bin/cargo" "+8a497b7181cad4ae66dbd6cc31042b69b6bd0df7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6d6e52f19935b0a0c6e51f00f71fa641226bdcf3cccdf6c8fb925038cd3649b
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[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
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[INFO] [stdout] warning: fields `reg` and `imm` are never read
[INFO] [stdout]    --> src/backend.rs:680:5
[INFO] [stdout]     |
[INFO] [stdout] 679 | struct RelocateAddress {
[INFO] [stdout]     |        --------------- fields in this struct
[INFO] [stdout] 680 |     reg: Option<GPR>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 681 |     imm: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]     = note: `RelocateAddress` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `position`, `dst_reg` and `address` are never read
[INFO] [stdout]    --> src/backend.rs:686:5
[INFO] [stdout]     |
[INFO] [stdout] 685 | struct RelocateAccess {
[INFO] [stdout]     |        -------------- fields in this struct
[INFO] [stdout] 686 |     position: AssemblyOffset,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 687 |     dst_reg: GPR,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 688 |     address: RelocateAddress,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RelocateAccess` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `reg` and `imm` are never read
[INFO] [stdout]    --> src/backend.rs:680:5
[INFO] [stdout]     |
[INFO] [stdout] 679 | struct RelocateAddress {
[INFO] [stdout]     |        --------------- fields in this struct
[INFO] [stdout] 680 |     reg: Option<GPR>,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 681 |     imm: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout]     = note: `RelocateAddress` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `position`, `dst_reg` and `address` are never read
[INFO] [stdout]    --> src/backend.rs:686:5
[INFO] [stdout]     |
[INFO] [stdout] 685 | struct RelocateAccess {
[INFO] [stdout]     |        -------------- fields in this struct
[INFO] [stdout] 686 |     position: AssemblyOffset,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 687 |     dst_reg: GPR,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 688 |     address: RelocateAddress,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RelocateAccess` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 28s
[INFO] running `Command { std: "docker" "inspect" "e6d6e52f19935b0a0c6e51f00f71fa641226bdcf3cccdf6c8fb925038cd3649b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6d6e52f19935b0a0c6e51f00f71fa641226bdcf3cccdf6c8fb925038cd3649b", kill_on_drop: false }`
[INFO] [stdout] e6d6e52f19935b0a0c6e51f00f71fa641226bdcf3cccdf6c8fb925038cd3649b