[INFO] updating cached repository pixix4/Robots-Rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pixix4/Robots-Rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pixix4/Robots-Rust" "work/ex/beta-1.37-6/sources/1.36.0/gh/pixix4/Robots-Rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/pixix4/Robots-Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pixix4/Robots-Rust" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pixix4/Robots-Rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pixix4/Robots-Rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0ee861e53645de24e0b8b65625a1496d0fb557f1
[INFO] sha for GitHub repo pixix4/Robots-Rust: 0ee861e53645de24e0b8b65625a1496d0fb557f1
[INFO] validating manifest of pixix4/Robots-Rust 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 pixix4/Robots-Rust 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 pixix4/Robots-Rust
[INFO] finished frobbing pixix4/Robots-Rust
[INFO] frobbed toml for pixix4/Robots-Rust written to work/ex/beta-1.37-6/sources/1.36.0/gh/pixix4/Robots-Rust/Cargo.toml
[INFO] started frobbing pixix4/Robots-Rust
[INFO] finished frobbing pixix4/Robots-Rust
[INFO] frobbed toml for pixix4/Robots-Rust written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/pixix4/Robots-Rust/Cargo.toml
[INFO] crate pixix4/Robots-Rust 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 pixix4/Robots-Rust against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pixix4/Robots-Rust:/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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 12604969b37ad2d083208f5690ead6dc99b4aa581e1414de62de015057d6a842
[INFO] running `"docker" "start" "-a" "12604969b37ad2d083208f5690ead6dc99b4aa581e1414de62de015057d6a842"`
[INFO] [stderr]    Compiling ev3dev-lang-rust v0.4.0
[INFO] [stderr]    Compiling robots-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Stop`
[INFO] [stderr]    --> src/network.rs:223:5
[INFO] [stderr]     |
[INFO] [stderr] 223 |     Stop,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Stop`
[INFO] [stderr]    --> src/driving.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     Stop,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.80s
[INFO] running `"docker" "inspect" "12604969b37ad2d083208f5690ead6dc99b4aa581e1414de62de015057d6a842"`
[INFO] running `"docker" "rm" "-f" "12604969b37ad2d083208f5690ead6dc99b4aa581e1414de62de015057d6a842"`
[INFO] [stdout] 12604969b37ad2d083208f5690ead6dc99b4aa581e1414de62de015057d6a842
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pixix4/Robots-Rust:/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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] f3686023497ee88235eee31d135ab360a5a23a685602148d2deb4f332e570069
[INFO] running `"docker" "start" "-a" "f3686023497ee88235eee31d135ab360a5a23a685602148d2deb4f332e570069"`
[INFO] [stderr]    Compiling robots-rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Stop`
[INFO] [stderr]    --> src/network.rs:223:5
[INFO] [stderr]     |
[INFO] [stderr] 223 |     Stop,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Stop`
[INFO] [stderr]    --> src/driving.rs:129:5
[INFO] [stderr]     |
[INFO] [stderr] 129 |     Stop,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.95s
[INFO] running `"docker" "inspect" "f3686023497ee88235eee31d135ab360a5a23a685602148d2deb4f332e570069"`
[INFO] running `"docker" "rm" "-f" "f3686023497ee88235eee31d135ab360a5a23a685602148d2deb4f332e570069"`
[INFO] [stdout] f3686023497ee88235eee31d135ab360a5a23a685602148d2deb4f332e570069
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/pixix4/Robots-Rust:/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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] 236c7ad7e2ff8551d2ca52ae9bee76ab4318542be3c584960e9da0bf7a4a893a
[INFO] running `"docker" "start" "-a" "236c7ad7e2ff8551d2ca52ae9bee76ab4318542be3c584960e9da0bf7a4a893a"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/robots_rust-70586645f9e0b57b
[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" "236c7ad7e2ff8551d2ca52ae9bee76ab4318542be3c584960e9da0bf7a4a893a"`
[INFO] running `"docker" "rm" "-f" "236c7ad7e2ff8551d2ca52ae9bee76ab4318542be3c584960e9da0bf7a4a893a"`
[INFO] [stdout] 236c7ad7e2ff8551d2ca52ae9bee76ab4318542be3c584960e9da0bf7a4a893a