[INFO] fetching crate engineer_derive 0.1.6...
[INFO] testing engineer_derive-0.1.6 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate engineer_derive 0.1.6 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate engineer_derive 0.1.6
[INFO] finished tweaking crates.io crate engineer_derive 0.1.6
[INFO] tweaked toml for crates.io crate engineer_derive 0.1.6 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate engineer_derive 0.1.6 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages to highest compatible versions
[INFO] [stderr]       Adding darling v0.14.4 (available: v0.24.1)
[INFO] [stderr]       Adding syn v1.0.109 (available: v3.0.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 2c205e95e9f5f297395e646e119aa2869f41246baaab043da5fd8d23e474e60d
[INFO] running `Command { std: "docker" "start" "2c205e95e9f5f297395e646e119aa2869f41246baaab043da5fd8d23e474e60d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c205e95e9f5f297395e646e119aa2869f41246baaab043da5fd8d23e474e60d", 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" "2c205e95e9f5f297395e646e119aa2869f41246baaab043da5fd8d23e474e60d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c205e95e9f5f297395e646e119aa2869f41246baaab043da5fd8d23e474e60d", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2c205e95e9f5f297395e646e119aa2869f41246baaab043da5fd8d23e474e60d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling engineer_derive v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `filter_options`, `map_names`, and `map_types` are never used
[INFO] [stdout]    --> src/lib.rs:260:8
[INFO] [stdout]     |
[INFO] [stdout] 255 | trait FieldsHelpers<'e>: Iterator<Item = &'e EngineerField> + Sized {
[INFO] [stdout]     |       ------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 260 |     fn filter_options(self) -> Vec<&'e EngineerField> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 264 |     fn map_names(self) -> Vec<&'e Option<syn::Ident>> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 268 |     fn map_types(self) -> Vec<&'e Type> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 10.54s
[INFO] running `Command { std: "docker" "inspect" "2c205e95e9f5f297395e646e119aa2869f41246baaab043da5fd8d23e474e60d", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2c205e95e9f5f297395e646e119aa2869f41246baaab043da5fd8d23e474e60d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling engineer_derive v0.1.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `filter_options`, `map_names`, and `map_types` are never used
[INFO] [stdout]    --> src/lib.rs:260:8
[INFO] [stdout]     |
[INFO] [stdout] 255 | trait FieldsHelpers<'e>: Iterator<Item = &'e EngineerField> + Sized {
[INFO] [stdout]     |       ------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 260 |     fn filter_options(self) -> Vec<&'e EngineerField> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 264 |     fn map_names(self) -> Vec<&'e Option<syn::Ident>> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 268 |     fn map_types(self) -> Vec<&'e Type> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `filter_options`, `map_names`, and `map_types` are never used
[INFO] [stdout]    --> src/lib.rs:260:8
[INFO] [stdout]     |
[INFO] [stdout] 255 | trait FieldsHelpers<'e>: Iterator<Item = &'e EngineerField> + Sized {
[INFO] [stdout]     |       ------------- methods in this trait
[INFO] [stdout] ...
[INFO] [stdout] 260 |     fn filter_options(self) -> Vec<&'e EngineerField> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 264 |     fn map_names(self) -> Vec<&'e Option<syn::Ident>> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 268 |     fn map_types(self) -> Vec<&'e Type> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "2c205e95e9f5f297395e646e119aa2869f41246baaab043da5fd8d23e474e60d", 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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2c205e95e9f5f297395e646e119aa2869f41246baaab043da5fd8d23e474e60d" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "test" "--frozen" "--release", kill_on_drop: false }`
[INFO] [stderr] warning: methods `filter_options`, `map_names`, and `map_types` are never used
[INFO] [stderr]    --> src/lib.rs:260:8
[INFO] [stderr]     |
[INFO] [stderr] 255 | trait FieldsHelpers<'e>: Iterator<Item = &'e EngineerField> + Sized {
[INFO] [stderr]     |       ------------- methods in this trait
[INFO] [stderr] ...
[INFO] [stderr] 260 |     fn filter_options(self) -> Vec<&'e EngineerField> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 264 |     fn map_names(self) -> Vec<&'e Option<syn::Ident>> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 268 |     fn map_types(self) -> Vec<&'e Type> {
[INFO] [stderr]     |        ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `engineer_derive` (lib) generated 1 warning
[INFO] [stderr] warning: `engineer_derive` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/release/deps/engineer_derive-cb284248fc598580)
[INFO] [stderr]    Doc-tests engineer_derive
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2c205e95e9f5f297395e646e119aa2869f41246baaab043da5fd8d23e474e60d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c205e95e9f5f297395e646e119aa2869f41246baaab043da5fd8d23e474e60d", kill_on_drop: false }`
[INFO] [stdout] 2c205e95e9f5f297395e646e119aa2869f41246baaab043da5fd8d23e474e60d
