[INFO] fetching crate derive_builder 0.10.2...
[INFO] checking derive_builder-0.10.2 against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] extracting crate derive_builder 0.10.2 into /workspace/builds/worker-89/source
[INFO] validating manifest of crates.io crate derive_builder 0.10.2 on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate derive_builder 0.10.2
[INFO] finished tweaking crates.io crate derive_builder 0.10.2
[INFO] tweaked toml for crates.io crate derive_builder 0.10.2 written to /workspace/builds/worker-89/source/Cargo.toml
[INFO] crate crates.io crate derive_builder 0.10.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 667f662002c461f22142c47055b0406b642624f64cac70a5db432e34b6cf596d
[INFO] running `Command { std: "docker" "start" "-a" "667f662002c461f22142c47055b0406b642624f64cac70a5db432e34b6cf596d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "667f662002c461f22142c47055b0406b642624f64cac70a5db432e34b6cf596d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "667f662002c461f22142c47055b0406b642624f64cac70a5db432e34b6cf596d", kill_on_drop: false }`
[INFO] [stdout] 667f662002c461f22142c47055b0406b642624f64cac70a5db432e34b6cf596d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c99453a22352b096c4dea6928d2500837c04b5b18921d5acb89646e6ee4d193d
[INFO] running `Command { std: "docker" "start" "-a" "c99453a22352b096c4dea6928d2500837c04b5b18921d5acb89646e6ee4d193d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling rustversion v1.0.4
[INFO] [stderr]    Compiling trybuild v1.0.42
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking difference v2.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling darling_core v0.12.4
[INFO] [stderr]    Compiling darling_macro v0.12.4
[INFO] [stderr]    Compiling darling v0.12.4
[INFO] [stderr]    Compiling derive_builder_core v0.10.2
[INFO] [stderr]    Compiling derive_builder_macro v0.10.2
[INFO] [stderr]     Checking derive_builder v0.10.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stdout] warning: field is never read: `foo`
[INFO] [stdout]   --> tests/derive_trait.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     foo: u8,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `excluded`
[INFO] [stdout]   --> tests/derive_trait.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     excluded: NotPartialEq,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `id`
[INFO] [stdout]   --> examples/channel.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     id: Uuid,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `token`
[INFO] [stdout]   --> examples/channel.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     token: Authentication,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `special_info`
[INFO] [stdout]   --> examples/channel.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     special_info: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> examples/custom_error.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     name: String,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]   --> examples/custom_error.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     age: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `token`
[INFO] [stdout]   --> examples/readme_example.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     token: i32,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `special_info`
[INFO] [stdout]   --> examples/readme_example.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     special_info: i32,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> examples/custom_error_generic.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     name: N,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]   --> examples/custom_error_generic.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     age: u16,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.04s
[INFO] running `Command { std: "docker" "inspect" "c99453a22352b096c4dea6928d2500837c04b5b18921d5acb89646e6ee4d193d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c99453a22352b096c4dea6928d2500837c04b5b18921d5acb89646e6ee4d193d", kill_on_drop: false }`
[INFO] [stdout] c99453a22352b096c4dea6928d2500837c04b5b18921d5acb89646e6ee4d193d