[INFO] fetching crate zap_api 0.0.2...
[INFO] checking zap_api-0.0.2 against master#43a4909ee98ed4d006d9d773f5d94dc58e34f846 for pr-157576
[INFO] extracting crate zap_api 0.0.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate zap_api 0.0.2
[INFO] finished tweaking crates.io crate zap_api 0.0.2
[INFO] tweaked toml for crates.io crate zap_api 0.0.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate zap_api 0.0.2 on toolchain 43a4909ee98ed4d006d9d773f5d94dc58e34f846
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+43a4909ee98ed4d006d9d773f5d94dc58e34f846" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+43a4909ee98ed4d006d9d773f5d94dc58e34f846" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 187 packages to latest compatible versions
[INFO] [stderr]       Adding reqwest v0.9.24 (available: v0.13.4)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+43a4909ee98ed4d006d9d773f5d94dc58e34f846" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 1efdfb55e28de4dd377ca60ef278f00b475cb8bf5aa13ad6c7fa3a1852ca2468
[INFO] running `Command { std: "docker" "start" "1efdfb55e28de4dd377ca60ef278f00b475cb8bf5aa13ad6c7fa3a1852ca2468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1efdfb55e28de4dd377ca60ef278f00b475cb8bf5aa13ad6c7fa3a1852ca2468" "/opt/rustwide/cargo-home/bin/cargo" "+43a4909ee98ed4d006d9d773f5d94dc58e34f846" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1efdfb55e28de4dd377ca60ef278f00b475cb8bf5aa13ad6c7fa3a1852ca2468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "1efdfb55e28de4dd377ca60ef278f00b475cb8bf5aa13ad6c7fa3a1852ca2468" "/opt/rustwide/cargo-home/bin/cargo" "+43a4909ee98ed4d006d9d773f5d94dc58e34f846" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking zap_api v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Serialize` is never used
[INFO] [stdout]   --> src/lib.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 | trait Serialize {}
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind` and `message` are never read
[INFO] [stdout]   --> src/lib.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub struct ZapApiError {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 62 |     kind: String,    // type of the error
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 63 |     message: String, // error message
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ZapApiError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Serialize` is never used
[INFO] [stdout]   --> src/lib.rs:21:7
[INFO] [stdout]    |
[INFO] [stdout] 21 | trait Serialize {}
[INFO] [stdout]    |       ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind` and `message` are never read
[INFO] [stdout]   --> src/lib.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 61 | pub struct ZapApiError {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 62 |     kind: String,    // type of the error
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 63 |     message: String, // error message
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ZapApiError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "1efdfb55e28de4dd377ca60ef278f00b475cb8bf5aa13ad6c7fa3a1852ca2468", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1efdfb55e28de4dd377ca60ef278f00b475cb8bf5aa13ad6c7fa3a1852ca2468", kill_on_drop: false }`
[INFO] [stdout] 1efdfb55e28de4dd377ca60ef278f00b475cb8bf5aa13ad6c7fa3a1852ca2468
