[INFO] crate qapi-qmp 0.3.0 is already in cache
[INFO] extracting crate qapi-qmp 0.3.0 into work/ex/clippy-test-run/sources/stable/reg/qapi-qmp/0.3.0
[INFO] extracting crate qapi-qmp 0.3.0 into work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/qapi-qmp/0.3.0
[INFO] validating manifest of qapi-qmp-0.3.0 on toolchain stable
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of qapi-qmp-0.3.0 on toolchain stable+rustflags=-Dclippy::into_iter_on_array
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing qapi-qmp-0.3.0
[INFO] finished frobbing qapi-qmp-0.3.0
[INFO] frobbed toml for qapi-qmp-0.3.0 written to work/ex/clippy-test-run/sources/stable/reg/qapi-qmp/0.3.0/Cargo.toml
[INFO] started frobbing qapi-qmp-0.3.0
[INFO] finished frobbing qapi-qmp-0.3.0
[INFO] frobbed toml for qapi-qmp-0.3.0 written to work/ex/clippy-test-run/sources/stable+rustflags=-Dclippy%3A%3Ainto_iter_on_array/reg/qapi-qmp/0.3.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+stable" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] linting qapi-qmp-0.3.0 against stable for clippy-test-run
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/clippy-test-run/worker-1/stable:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/clippy-test-run/sources/stable/reg/qapi-qmp/0.3.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+stable" "clippy" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] f6636a2a93487c46b4193bd2f247a3999e28e587506d62e573a5ec011aeadfc3
[INFO] running `"docker" "start" "-a" "f6636a2a93487c46b4193bd2f247a3999e28e587506d62e573a5ec011aeadfc3"`
[INFO] [stderr]    Compiling qapi-parser v0.2.1
[INFO] [stderr]     Checking qapi-spec v0.2.2
[INFO] [stderr]    Compiling qapi-codegen v0.2.1
[INFO] [stderr]    Compiling qapi-qmp v0.3.0 (/opt/crater/workdir)
[INFO] [stderr] error: Could not compile `qapi-qmp`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/crater/rustup-home/toolchains/stable-x86_64-unknown-linux-gnu/bin/clippy-driver rustc --crate-name qapi_qmp src/lib.rs --color never --emit=dep-info,metadata -C debuginfo=2 --test -C metadata=59716d6c2729f078 -C extra-filename=-59716d6c2729f078 --out-dir /opt/crater/target/debug/deps -L dependency=/opt/crater/target/debug/deps --extern qapi_spec=/opt/crater/target/debug/deps/libqapi_spec-052bc7ad90900dd8.rmeta --extern serde=/opt/crater/target/debug/deps/libserde-1a05b79e010b418f.rmeta --extern serde_derive=/opt/crater/target/debug/deps/libserde_derive-e199811fe2f7d329.so --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: large size difference between variants
[INFO] [stderr]     --> /opt/crater/target/debug/build/qapi-qmp-a90da718aaf58618/out/qmp.rs:5124:2
[INFO] [stderr]      |
[INFO] [stderr] 5124 |       user {
[INFO] [stderr]      |  _____^
[INFO] [stderr] 5125 | |         #[serde(rename = "id")]
[INFO] [stderr] 5126 | | id: ::std::string::String,
[INFO] [stderr] 5127 | |         #[serde(flatten)] #[serde(rename = "user")]
[INFO] [stderr] 5128 | | user: NetdevUserOptions,
[INFO] [stderr] 5129 | |     },
[INFO] [stderr]      | |_____^
[INFO] [stderr]      |
[INFO] [stderr]      = note: #[warn(clippy::large_enum_variant)] on by default
[INFO] [stderr] help: consider boxing the large fields to reduce the total size of the enum
[INFO] [stderr]     --> /opt/crater/target/debug/build/qapi-qmp-a90da718aaf58618/out/qmp.rs:5124:2
[INFO] [stderr]      |
[INFO] [stderr] 5124 |       user {
[INFO] [stderr]      |  _____^
[INFO] [stderr] 5125 | |         #[serde(rename = "id")]
[INFO] [stderr] 5126 | | id: ::std::string::String,
[INFO] [stderr] 5127 | |         #[serde(flatten)] #[serde(rename = "user")]
[INFO] [stderr] 5128 | | user: NetdevUserOptions,
[INFO] [stderr] 5129 | |     },
[INFO] [stderr]      | |_____^
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_enum_variant
[INFO] [stderr] 
[INFO] [stderr] warning: large size difference between variants
[INFO] [stderr]     --> /opt/crater/target/debug/build/qapi-qmp-a90da718aaf58618/out/qmp.rs:5237:2
[INFO] [stderr]      |
[INFO] [stderr] 5237 |       user {
[INFO] [stderr]      |  _____^
[INFO] [stderr] 5238 | |         #[serde(flatten)] #[serde(rename = "user")]
[INFO] [stderr] 5239 | | user: NetdevUserOptions,
[INFO] [stderr] 5240 | |     },
[INFO] [stderr]      | |_____^
[INFO] [stderr]      |
[INFO] [stderr]      = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#large_enum_variant
[INFO] [stderr] help: consider boxing the large fields to reduce the total size of the enum
[INFO] [stderr]      |
[INFO] [stderr] 5239 | user: Box<NetdevUserOptions>,
[INFO] [stderr]      |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "f6636a2a93487c46b4193bd2f247a3999e28e587506d62e573a5ec011aeadfc3"`
[INFO] running `"docker" "rm" "-f" "f6636a2a93487c46b4193bd2f247a3999e28e587506d62e573a5ec011aeadfc3"`
[INFO] [stdout] f6636a2a93487c46b4193bd2f247a3999e28e587506d62e573a5ec011aeadfc3