[INFO] updating cached repository fcostin/go_vs_rust_json_deserialise
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fcostin/go_vs_rust_json_deserialise
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fcostin/go_vs_rust_json_deserialise" "work/ex/beta-1.37-6/sources/1.36.0/gh/fcostin/go_vs_rust_json_deserialise"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/fcostin/go_vs_rust_json_deserialise'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fcostin/go_vs_rust_json_deserialise" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fcostin/go_vs_rust_json_deserialise"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fcostin/go_vs_rust_json_deserialise'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 843dd1a0ee96619796476586e2966a281d7f0100
[INFO] sha for GitHub repo fcostin/go_vs_rust_json_deserialise: 843dd1a0ee96619796476586e2966a281d7f0100
[INFO] validating manifest of fcostin/go_vs_rust_json_deserialise on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of fcostin/go_vs_rust_json_deserialise on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing fcostin/go_vs_rust_json_deserialise
[INFO] finished frobbing fcostin/go_vs_rust_json_deserialise
[INFO] frobbed toml for fcostin/go_vs_rust_json_deserialise written to work/ex/beta-1.37-6/sources/1.36.0/gh/fcostin/go_vs_rust_json_deserialise/Cargo.toml
[INFO] started frobbing fcostin/go_vs_rust_json_deserialise
[INFO] finished frobbing fcostin/go_vs_rust_json_deserialise
[INFO] frobbed toml for fcostin/go_vs_rust_json_deserialise written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fcostin/go_vs_rust_json_deserialise/Cargo.toml
[INFO] crate fcostin/go_vs_rust_json_deserialise already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing fcostin/go_vs_rust_json_deserialise against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fcostin/go_vs_rust_json_deserialise:/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-2019-07-23" "build" "--frozen"`
[INFO] [stdout] f8a0c35bb1be19f48a1592db17ad25ce78dd34f309d76307abcbf66b25f5cfc6
[INFO] running `"docker" "start" "-a" "f8a0c35bb1be19f48a1592db17ad25ce78dd34f309d76307abcbf66b25f5cfc6"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.25
[INFO] [stderr]    Compiling serde_json v1.0.36
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling golang_json_deserialisation v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.99s
[INFO] running `"docker" "inspect" "f8a0c35bb1be19f48a1592db17ad25ce78dd34f309d76307abcbf66b25f5cfc6"`
[INFO] running `"docker" "rm" "-f" "f8a0c35bb1be19f48a1592db17ad25ce78dd34f309d76307abcbf66b25f5cfc6"`
[INFO] [stdout] f8a0c35bb1be19f48a1592db17ad25ce78dd34f309d76307abcbf66b25f5cfc6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fcostin/go_vs_rust_json_deserialise:/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-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 09842704d082e7cdb1a8fe8a5f8e8d0e5c880fa643942a9a9eba1afecc747ef9
[INFO] running `"docker" "start" "-a" "09842704d082e7cdb1a8fe8a5f8e8d0e5c880fa643942a9a9eba1afecc747ef9"`
[INFO] [stderr]    Compiling golang_json_deserialisation v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "09842704d082e7cdb1a8fe8a5f8e8d0e5c880fa643942a9a9eba1afecc747ef9"`
[INFO] running `"docker" "rm" "-f" "09842704d082e7cdb1a8fe8a5f8e8d0e5c880fa643942a9a9eba1afecc747ef9"`
[INFO] [stdout] 09842704d082e7cdb1a8fe8a5f8e8d0e5c880fa643942a9a9eba1afecc747ef9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-4/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/fcostin/go_vs_rust_json_deserialise:/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-2019-07-23" "test" "--frozen"`
[INFO] [stdout] cffd42f3c0d88af2dff4a2876abe43a49e371103ea7bc8e7245e61c03ec7d3ef
[INFO] running `"docker" "start" "-a" "cffd42f3c0d88af2dff4a2876abe43a49e371103ea7bc8e7245e61c03ec7d3ef"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/golang_json_deserialisation-177ec93fc808f5b5
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "cffd42f3c0d88af2dff4a2876abe43a49e371103ea7bc8e7245e61c03ec7d3ef"`
[INFO] running `"docker" "rm" "-f" "cffd42f3c0d88af2dff4a2876abe43a49e371103ea7bc8e7245e61c03ec7d3ef"`
[INFO] [stdout] cffd42f3c0d88af2dff4a2876abe43a49e371103ea7bc8e7245e61c03ec7d3ef