[INFO] crate serde_yaml_incomplete 0.0.0 is already in cache
[INFO] testing serde_yaml_incomplete-0.0.0 against beta-2019-09-28 for beta-1.39-1
[INFO] extracting crate serde_yaml_incomplete 0.0.0 into work/builds/worker-8/source
[INFO] validating manifest of crates.io crate serde_yaml_incomplete 0.0.0 on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate serde_yaml_incomplete 0.0.0
[INFO] finished tweaking crates.io crate serde_yaml_incomplete 0.0.0
[INFO] tweaked toml for crates.io crate serde_yaml_incomplete 0.0.0 written to work/builds/worker-8/source/Cargo.toml
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] 5a307da7a95634cf6f9e27122d227b5fd79a49b90740a1d63077b9e2cf271b00
[INFO] running `"docker" "start" "-a" "5a307da7a95634cf6f9e27122d227b5fd79a49b90740a1d63077b9e2cf271b00"`
[INFO] [stderr]    Compiling extprim v1.7.0
[INFO] [stderr]    Compiling aster v0.41.0
[INFO] [stderr]    Compiling syntex v0.58.1
[INFO] [stderr]    Compiling quasi v0.32.0
[INFO] [stderr]    Compiling syntex_syntax v0.29.3
[INFO] [stderr]    Compiling syntex_pos v0.59.1
[INFO] [stderr]    Compiling serde v0.4.3
[INFO] [stderr] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-0.4.3/src/de/mod.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | /     fn deserialize<D>(deserializer: &mut D) -> Result<Self, D::Error>
[INFO] [stderr] 23 | |         where D: Deserializer;
[INFO] [stderr]    | |______________________________^ doesn't have a size known at compile-time
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::marker::Sized` is not implemented for `Self`
[INFO] [stderr]    = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]    = help: consider adding a `where Self: std::marker::Sized` bound
[INFO] [stderr]    = note: required by `std::result::Result`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `serde`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "5a307da7a95634cf6f9e27122d227b5fd79a49b90740a1d63077b9e2cf271b00"`
[INFO] running `"docker" "rm" "-f" "5a307da7a95634cf6f9e27122d227b5fd79a49b90740a1d63077b9e2cf271b00"`
[INFO] [stdout] 5a307da7a95634cf6f9e27122d227b5fd79a49b90740a1d63077b9e2cf271b00