[INFO] updating cached repository jean-airoldie/fbs-payload-example
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/jean-airoldie/fbs-payload-example
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/jean-airoldie/fbs-payload-example" "work/ex/beta-1.38-1/sources/1.37.0/gh/jean-airoldie/fbs-payload-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/jean-airoldie/fbs-payload-example'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/jean-airoldie/fbs-payload-example" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jean-airoldie/fbs-payload-example"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jean-airoldie/fbs-payload-example'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 95a18b49da0ee59ee870d160317fc8bcc4608f1e
[INFO] sha for GitHub repo jean-airoldie/fbs-payload-example: 95a18b49da0ee59ee870d160317fc8bcc4608f1e
[INFO] validating manifest of jean-airoldie/fbs-payload-example 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 jean-airoldie/fbs-payload-example 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 jean-airoldie/fbs-payload-example
[INFO] finished frobbing jean-airoldie/fbs-payload-example
[INFO] frobbed toml for jean-airoldie/fbs-payload-example written to work/ex/beta-1.38-1/sources/1.37.0/gh/jean-airoldie/fbs-payload-example/Cargo.toml
[INFO] started frobbing jean-airoldie/fbs-payload-example
[INFO] finished frobbing jean-airoldie/fbs-payload-example
[INFO] frobbed toml for jean-airoldie/fbs-payload-example written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jean-airoldie/fbs-payload-example/Cargo.toml
[INFO] crate jean-airoldie/fbs-payload-example already has a lockfile, it will not be regenerated
[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 jean-airoldie/fbs-payload-example 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-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jean-airoldie/fbs-payload-example:/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] 854cc2349b534666eae911e5d0f6cef890de0675ef78574b53cba06e581b6840
[INFO] running `"docker" "start" "-a" "854cc2349b534666eae911e5d0f6cef890de0675ef78574b53cba06e581b6840"`
[INFO] [stderr]    Compiling flatbuffers v0.5.0
[INFO] [stderr]    Compiling fbs-payload v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `bytes_vec`
[INFO] [stderr]   --> src/main.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let bytes_vec = payload.to_bytes(&mut self.builder);
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_bytes_vec`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.73s
[INFO] running `"docker" "inspect" "854cc2349b534666eae911e5d0f6cef890de0675ef78574b53cba06e581b6840"`
[INFO] running `"docker" "rm" "-f" "854cc2349b534666eae911e5d0f6cef890de0675ef78574b53cba06e581b6840"`
[INFO] [stdout] 854cc2349b534666eae911e5d0f6cef890de0675ef78574b53cba06e581b6840
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jean-airoldie/fbs-payload-example:/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] 58101b7432ddf05ff9572b5f75787ddf7197dd7cd96bb564e93571beff318d84
[INFO] running `"docker" "start" "-a" "58101b7432ddf05ff9572b5f75787ddf7197dd7cd96bb564e93571beff318d84"`
[INFO] [stderr]    Compiling fbs-payload v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `bytes_vec`
[INFO] [stderr]   --> src/main.rs:15:13
[INFO] [stderr]    |
[INFO] [stderr] 15 |         let bytes_vec = payload.to_bytes(&mut self.builder);
[INFO] [stderr]    |             ^^^^^^^^^ help: consider prefixing with an underscore: `_bytes_vec`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `"docker" "inspect" "58101b7432ddf05ff9572b5f75787ddf7197dd7cd96bb564e93571beff318d84"`
[INFO] running `"docker" "rm" "-f" "58101b7432ddf05ff9572b5f75787ddf7197dd7cd96bb564e93571beff318d84"`
[INFO] [stdout] 58101b7432ddf05ff9572b5f75787ddf7197dd7cd96bb564e93571beff318d84
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-0/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/jean-airoldie/fbs-payload-example:/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"`
[INFO] [stdout] a9475e28496cd14e1ce5ed79d71d667530d7dc3435c3085999c0a927c6f71189
[INFO] running `"docker" "start" "-a" "a9475e28496cd14e1ce5ed79d71d667530d7dc3435c3085999c0a927c6f71189"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/fbs_payload-fd7d9b8523be8dc4
[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] [stderr]      Running /opt/crater/target/debug/deps/fbs_payload-a21ce2799796dfa8
[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] [stderr]    Doc-tests fbs-payload
[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" "a9475e28496cd14e1ce5ed79d71d667530d7dc3435c3085999c0a927c6f71189"`
[INFO] running `"docker" "rm" "-f" "a9475e28496cd14e1ce5ed79d71d667530d7dc3435c3085999c0a927c6f71189"`
[INFO] [stdout] a9475e28496cd14e1ce5ed79d71d667530d7dc3435c3085999c0a927c6f71189