[INFO] cloning repository https://github.com/zhangningboo/rust_cpp_ffi
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zhangningboo/rust_cpp_ffi" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhangningboo%2Frust_cpp_ffi", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhangningboo%2Frust_cpp_ffi'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4dfa1c2bcdb44acd99662a29e9f57a769652e8a9
[INFO] checking zhangningboo/rust_cpp_ffi against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhangningboo%2Frust_cpp_ffi" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zhangningboo/rust_cpp_ffi
[INFO] finished tweaking git repo https://github.com/zhangningboo/rust_cpp_ffi
[INFO] tweaked toml for git repo https://github.com/zhangningboo/rust_cpp_ffi written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zhangningboo/rust_cpp_ffi on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zhangningboo/rust_cpp_ffi 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded link-cplusplus v1.0.10
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b5bbca3e001943af2e5a709ba284eda6d78818566c1552cb0c72deec03f8896
[INFO] running `Command { std: "docker" "start" "-a" "5b5bbca3e001943af2e5a709ba284eda6d78818566c1552cb0c72deec03f8896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b5bbca3e001943af2e5a709ba284eda6d78818566c1552cb0c72deec03f8896", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b5bbca3e001943af2e5a709ba284eda6d78818566c1552cb0c72deec03f8896", kill_on_drop: false }`
[INFO] [stdout] 5b5bbca3e001943af2e5a709ba284eda6d78818566c1552cb0c72deec03f8896
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bef375de11f86038b2a7ab76a188500ada0231dc496233636c80dc9f899cb36f
[INFO] running `Command { std: "docker" "start" "-a" "bef375de11f86038b2a7ab76a188500ada0231dc496233636c80dc9f899cb36f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
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[INFO] [stderr]     Checking tracing-core v0.1.34
[INFO] [stderr]     Checking deranged v0.4.0
[INFO] [stderr]    Compiling serde_json v1.0.141
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[INFO] [stderr]    Compiling darling_core v0.20.11
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[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling tracing-attributes v0.1.30
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[INFO] [stderr]    Compiling rust_cpp_ffi v0.1.0 (/opt/rustwide/workdir)
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[INFO] [stderr]     Checking serde_with v3.14.0
[INFO] [stdout] warning: fields `key` and `pairs` are never read
[INFO] [stdout]   --> src/ffi/cpp_map.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct RustGroup {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 41 |     pub key: i32,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 42 |     pub pairs: Vec<PairIntRect>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RustGroup` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `key` and `pairs` are never read
[INFO] [stdout]   --> src/ffi/cpp_map.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 40 | pub struct RustGroup {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 41 |     pub key: i32,
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 42 |     pub pairs: Vec<PairIntRect>,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RustGroup` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[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 14.13s
[INFO] running `Command { std: "docker" "inspect" "bef375de11f86038b2a7ab76a188500ada0231dc496233636c80dc9f899cb36f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bef375de11f86038b2a7ab76a188500ada0231dc496233636c80dc9f899cb36f", kill_on_drop: false }`
[INFO] [stdout] bef375de11f86038b2a7ab76a188500ada0231dc496233636c80dc9f899cb36f