[INFO] crate jsonrpc-core 12.1.0 is already in cache
[INFO] extracting crate jsonrpc-core 12.1.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/jsonrpc-core/12.1.0
[INFO] extracting crate jsonrpc-core 12.1.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/jsonrpc-core/12.1.0
[INFO] validating manifest of jsonrpc-core-12.1.0 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of jsonrpc-core-12.1.0 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing jsonrpc-core-12.1.0
[INFO] finished frobbing jsonrpc-core-12.1.0
[INFO] frobbed toml for jsonrpc-core-12.1.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/jsonrpc-core/12.1.0/Cargo.toml
[INFO] started frobbing jsonrpc-core-12.1.0
[INFO] finished frobbing jsonrpc-core-12.1.0
[INFO] frobbed toml for jsonrpc-core-12.1.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/jsonrpc-core/12.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing jsonrpc-core-12.1.0 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/jsonrpc-core/12.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] efc7c43a03e2afd02a5be8bfecb502d00eca3c54740067a438af257947cd22d1
[INFO] running `"docker" "start" "-a" "efc7c43a03e2afd02a5be8bfecb502d00eca3c54740067a438af257947cd22d1"`
[INFO] [stderr]    Compiling jsonrpc-core v12.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.04s
[INFO] running `"docker" "inspect" "efc7c43a03e2afd02a5be8bfecb502d00eca3c54740067a438af257947cd22d1"`
[INFO] running `"docker" "rm" "-f" "efc7c43a03e2afd02a5be8bfecb502d00eca3c54740067a438af257947cd22d1"`
[INFO] [stdout] efc7c43a03e2afd02a5be8bfecb502d00eca3c54740067a438af257947cd22d1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-3/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/reg/jsonrpc-core/12.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] c6562af852d152f28b9cf32803dd513c9242cc7dda65341f40a54a93f76cc9ea
[INFO] running `"docker" "start" "-a" "c6562af852d152f28b9cf32803dd513c9242cc7dda65341f40a54a93f76cc9ea"`
[INFO] [stderr]    Compiling jsonrpc-core v12.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: cannot find derive macro `Deserialize` in this scope
[INFO] [stderr]  --> examples/params.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[derive(Deserialize)]
[INFO] [stderr]   |          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `serde::Deserialize`
[INFO] [stderr]  --> examples/params.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use serde::Deserialize;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `for<'de> HelloParams: serde::de::Deserialize<'de>` is not satisfied
[INFO] [stderr]   --> examples/params.rs:13:36
[INFO] [stderr]    |
[INFO] [stderr] 13 |         let parsed: HelloParams = params.parse().unwrap();
[INFO] [stderr]    |                                          ^^^^^ the trait `for<'de> serde::de::Deserialize<'de>` is not implemented for `HelloParams`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required because of the requirements on the impl of `serde::de::DeserializeOwned` for `HelloParams`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: Could not compile `jsonrpc-core`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "c6562af852d152f28b9cf32803dd513c9242cc7dda65341f40a54a93f76cc9ea"`
[INFO] running `"docker" "rm" "-f" "c6562af852d152f28b9cf32803dd513c9242cc7dda65341f40a54a93f76cc9ea"`
[INFO] [stdout] c6562af852d152f28b9cf32803dd513c9242cc7dda65341f40a54a93f76cc9ea