[INFO] crate movingai 1.0.0 is already in cache
[INFO] extracting crate movingai 1.0.0 into work/ex/beta-1.38-1/sources/1.37.0/reg/movingai/1.0.0
[INFO] extracting crate movingai 1.0.0 into work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/movingai/1.0.0
[INFO] validating manifest of movingai-1.0.0 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 movingai-1.0.0 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 movingai-1.0.0
[INFO] finished frobbing movingai-1.0.0
[INFO] frobbed toml for movingai-1.0.0 written to work/ex/beta-1.38-1/sources/1.37.0/reg/movingai/1.0.0/Cargo.toml
[INFO] started frobbing movingai-1.0.0
[INFO] finished frobbing movingai-1.0.0
[INFO] frobbed toml for movingai-1.0.0 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/movingai/1.0.0/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] 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 movingai-1.0.0 against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/movingai/1.0.0:/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] bfa663d89f993579b41872926f5c22b10feef139034d71a081b0672f8055f514
[INFO] running `"docker" "start" "-a" "bfa663d89f993579b41872926f5c22b10feef139034d71a081b0672f8055f514"`
[INFO] [stderr]    Compiling movingai v1.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `"docker" "inspect" "bfa663d89f993579b41872926f5c22b10feef139034d71a081b0672f8055f514"`
[INFO] running `"docker" "rm" "-f" "bfa663d89f993579b41872926f5c22b10feef139034d71a081b0672f8055f514"`
[INFO] [stdout] bfa663d89f993579b41872926f5c22b10feef139034d71a081b0672f8055f514
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/reg/movingai/1.0.0:/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 5daf87f927037b5d6aa8a443a4009d5aac03927129ac568ebf6d991e80d2caae
[INFO] running `"docker" "start" "-a" "5daf87f927037b5d6aa8a443a4009d5aac03927129ac568ebf6d991e80d2caae"`
[INFO] [stderr]    Compiling movingai v1.0.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0277]: the trait bound `movingai::MovingAiMap: serde::ser::Serialize` is not satisfied
[INFO] [stderr]   --> examples/into_json.rs:11:22
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let serialized = serde_json::to_string(&map).unwrap();
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^ the trait `serde::ser::Serialize` is not implemented for `movingai::MovingAiMap`
[INFO] [stderr]    |
[INFO] [stderr]    = note: required by `serde_json::ser::to_string`
[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 `movingai`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "5daf87f927037b5d6aa8a443a4009d5aac03927129ac568ebf6d991e80d2caae"`
[INFO] running `"docker" "rm" "-f" "5daf87f927037b5d6aa8a443a4009d5aac03927129ac568ebf6d991e80d2caae"`
[INFO] [stdout] 5daf87f927037b5d6aa8a443a4009d5aac03927129ac568ebf6d991e80d2caae