[INFO] updating cached repository saem/rncc
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/saem/rncc
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/saem/rncc" "work/ex/beta-1.38-1/sources/1.37.0/gh/saem/rncc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/saem/rncc'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/saem/rncc" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/saem/rncc"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/saem/rncc'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d2e8b0baa55d73594b8063d64bed23bfb0fe23ad
[INFO] sha for GitHub repo saem/rncc: d2e8b0baa55d73594b8063d64bed23bfb0fe23ad
[INFO] validating manifest of saem/rncc 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 saem/rncc 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 saem/rncc
[INFO] finished frobbing saem/rncc
[INFO] frobbed toml for saem/rncc written to work/ex/beta-1.38-1/sources/1.37.0/gh/saem/rncc/Cargo.toml
[INFO] started frobbing saem/rncc
[INFO] finished frobbing saem/rncc
[INFO] frobbed toml for saem/rncc written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/saem/rncc/Cargo.toml
[INFO] crate saem/rncc 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 saem/rncc 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/saem/rncc:/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] be5346944c6361e93fab37f0efdb020d2129b482d674496510e7647e1ea0f63a
[INFO] running `"docker" "start" "-a" "be5346944c6361e93fab37f0efdb020d2129b482d674496510e7647e1ea0f63a"`
[INFO] [stderr]    Compiling rncc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: enum is never used: `Operation`
[INFO] [stderr]   --> src/network.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | enum Operation {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.93s
[INFO] running `"docker" "inspect" "be5346944c6361e93fab37f0efdb020d2129b482d674496510e7647e1ea0f63a"`
[INFO] running `"docker" "rm" "-f" "be5346944c6361e93fab37f0efdb020d2129b482d674496510e7647e1ea0f63a"`
[INFO] [stdout] be5346944c6361e93fab37f0efdb020d2129b482d674496510e7647e1ea0f63a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/saem/rncc:/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] e3d105f88316c5b260ad2ac4c5ad3c744346322c2c6a19c93dd3e180c79c1b54
[INFO] running `"docker" "start" "-a" "e3d105f88316c5b260ad2ac4c5ad3c744346322c2c6a19c93dd3e180c79c1b54"`
[INFO] [stderr]    Compiling rncc v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: enum is never used: `Operation`
[INFO] [stderr]   --> src/network.rs:34:1
[INFO] [stderr]    |
[INFO] [stderr] 34 | enum Operation {
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "e3d105f88316c5b260ad2ac4c5ad3c744346322c2c6a19c93dd3e180c79c1b54"`
[INFO] running `"docker" "rm" "-f" "e3d105f88316c5b260ad2ac4c5ad3c744346322c2c6a19c93dd3e180c79c1b54"`
[INFO] [stdout] e3d105f88316c5b260ad2ac4c5ad3c744346322c2c6a19c93dd3e180c79c1b54
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/saem/rncc:/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"`
[INFO] [stdout] 4d9e759c170cd7c4fde5448a2b79e1731e91afcf5a7d0a9102c143bf3501c178
[INFO] running `"docker" "start" "-a" "4d9e759c170cd7c4fde5448a2b79e1731e91afcf5a7d0a9102c143bf3501c178"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rncc-889380d978cbc7d9
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test network::tests::empty_network_is_empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "4d9e759c170cd7c4fde5448a2b79e1731e91afcf5a7d0a9102c143bf3501c178"`
[INFO] running `"docker" "rm" "-f" "4d9e759c170cd7c4fde5448a2b79e1731e91afcf5a7d0a9102c143bf3501c178"`
[INFO] [stdout] 4d9e759c170cd7c4fde5448a2b79e1731e91afcf5a7d0a9102c143bf3501c178