[INFO] fetching crate json_to_rust 0.2.0...
[INFO] checking json_to_rust-0.2.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate json_to_rust 0.2.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate json_to_rust 0.2.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate json_to_rust 0.2.0
[INFO] finished tweaking crates.io crate json_to_rust 0.2.0
[INFO] tweaked toml for crates.io crate json_to_rust 0.2.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate json_to_rust 0.2.0 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded anyhow v1.0.33
[INFO] [stderr]   Downloaded indexmap v1.6.0
[INFO] [stderr]   Downloaded pico-args v0.3.4
[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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a56a418016885583dddc1671e3483c20b820315e66e28560fd3d08386a18085
[INFO] running `Command { std: "docker" "start" "-a" "5a56a418016885583dddc1671e3483c20b820315e66e28560fd3d08386a18085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a56a418016885583dddc1671e3483c20b820315e66e28560fd3d08386a18085", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a56a418016885583dddc1671e3483c20b820315e66e28560fd3d08386a18085", kill_on_drop: false }`
[INFO] [stdout] 5a56a418016885583dddc1671e3483c20b820315e66e28560fd3d08386a18085
[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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6abb7668e6e8fefa5080f26c4bf961ef4a76557949308b1fa304af372cf9779
[INFO] running `Command { std: "docker" "start" "-a" "d6abb7668e6e8fefa5080f26c4bf961ef4a76557949308b1fa304af372cf9779", kill_on_drop: false }`
[INFO] [stderr]    Compiling indexmap v1.6.0
[INFO] [stderr]    Compiling anyhow v1.0.33
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking inflections v1.1.1
[INFO] [stderr]     Checking json v0.12.4
[INFO] [stderr]     Checking pico-args v0.3.4
[INFO] [stderr]     Checking json_to_rust v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `WrapperApply` is never used
[INFO] [stdout]   --> src/util.rs:55:7
[INFO] [stdout]    |
[INFO] [stdout] 55 | trait WrapperApply {
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NestedWrapper` is never constructed
[INFO] [stdout]   --> src/util.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct NestedWrapper {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NestedWrapper` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `WrapperApply` is never used
[INFO] [stdout]   --> src/util.rs:55:7
[INFO] [stdout]    |
[INFO] [stdout] 55 | trait WrapperApply {
[INFO] [stdout]    |       ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NestedWrapper` is never constructed
[INFO] [stdout]   --> src/util.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 | pub struct NestedWrapper {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NestedWrapper` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "d6abb7668e6e8fefa5080f26c4bf961ef4a76557949308b1fa304af372cf9779", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6abb7668e6e8fefa5080f26c4bf961ef4a76557949308b1fa304af372cf9779", kill_on_drop: false }`
[INFO] [stdout] d6abb7668e6e8fefa5080f26c4bf961ef4a76557949308b1fa304af372cf9779