[INFO] fetching crate lain_derive 0.5.5...
[INFO] checking lain_derive-0.5.5 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate lain_derive 0.5.5 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate lain_derive 0.5.5 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lain_derive 0.5.5
[INFO] finished tweaking crates.io crate lain_derive 0.5.5
[INFO] tweaked toml for crates.io crate lain_derive 0.5.5 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] [stderr]       Adding proc-macro2 v0.4.30 (latest: v1.0.86)
[INFO] [stderr]       Adding quote v0.6.13 (latest: v1.0.37)
[INFO] [stderr]       Adding syn v0.15.44 (latest: v2.0.76)
[INFO] [stderr]       Adding unicode-xid v0.1.0 (latest: v0.2.5)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72b1759620ed9fdf2d8e56c8e0c8bc44d9e1e96559e68e70ba89976d10d26b4e
[INFO] running `Command { std: "docker" "start" "-a" "72b1759620ed9fdf2d8e56c8e0c8bc44d9e1e96559e68e70ba89976d10d26b4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72b1759620ed9fdf2d8e56c8e0c8bc44d9e1e96559e68e70ba89976d10d26b4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72b1759620ed9fdf2d8e56c8e0c8bc44d9e1e96559e68e70ba89976d10d26b4e", kill_on_drop: false }`
[INFO] [stdout] 72b1759620ed9fdf2d8e56c8e0c8bc44d9e1e96559e68e70ba89976d10d26b4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9d3d2164e04877ffafebb09485ee9cde8dc33d4c711905976f6f14f7f384054
[INFO] running `Command { std: "docker" "start" "-a" "d9d3d2164e04877ffafebb09485ee9cde8dc33d4c711905976f6f14f7f384054", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]     Checking quote v0.6.13
[INFO] [stderr]     Checking lain_derive v0.5.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `generics` and `original` are never read
[INFO] [stdout]   --> src/internals/ast.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Container<'a> {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub generics: &'a syn::Generics,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 17 |     /// Original input.
[INFO] [stdout] 18 |     pub original: &'a syn::DeriveInput,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `generics` and `original` are never read
[INFO] [stdout]   --> src/internals/ast.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct Container<'a> {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 16 |     pub generics: &'a syn::Generics,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 17 |     /// Original input.
[INFO] [stdout] 18 |     pub original: &'a syn::DeriveInput,
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `Command { std: "docker" "inspect" "d9d3d2164e04877ffafebb09485ee9cde8dc33d4c711905976f6f14f7f384054", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9d3d2164e04877ffafebb09485ee9cde8dc33d4c711905976f6f14f7f384054", kill_on_drop: false }`
[INFO] [stdout] d9d3d2164e04877ffafebb09485ee9cde8dc33d4c711905976f6f14f7f384054