[INFO] updating cached repository iveltondequeiroz/port-sniffer-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/iveltondequeiroz/port-sniffer-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/iveltondequeiroz/port-sniffer-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/iveltondequeiroz/port-sniffer-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/iveltondequeiroz/port-sniffer-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/iveltondequeiroz/port-sniffer-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iveltondequeiroz/port-sniffer-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iveltondequeiroz/port-sniffer-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fb8c0ebbd04512774660291694cf19e54d01ad5f
[INFO] sha for GitHub repo iveltondequeiroz/port-sniffer-rust: fb8c0ebbd04512774660291694cf19e54d01ad5f
[INFO] validating manifest of iveltondequeiroz/port-sniffer-rust 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 iveltondequeiroz/port-sniffer-rust 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 iveltondequeiroz/port-sniffer-rust
[INFO] finished frobbing iveltondequeiroz/port-sniffer-rust
[INFO] frobbed toml for iveltondequeiroz/port-sniffer-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/iveltondequeiroz/port-sniffer-rust/Cargo.toml
[INFO] started frobbing iveltondequeiroz/port-sniffer-rust
[INFO] finished frobbing iveltondequeiroz/port-sniffer-rust
[INFO] frobbed toml for iveltondequeiroz/port-sniffer-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/iveltondequeiroz/port-sniffer-rust/Cargo.toml
[INFO] crate iveltondequeiroz/port-sniffer-rust 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 iveltondequeiroz/port-sniffer-rust 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/gh/iveltondequeiroz/port-sniffer-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] ba446a53d469934e06703b7f2281a0b8ac17ddc4d01a469d87a6deed6b03e229
[INFO] running `"docker" "start" "-a" "ba446a53d469934e06703b7f2281a0b8ac17ddc4d01a469d87a6deed6b03e229"`
[INFO] [stderr]    Compiling ip_sniffer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `flag`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     flag: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.81s
[INFO] running `"docker" "inspect" "ba446a53d469934e06703b7f2281a0b8ac17ddc4d01a469d87a6deed6b03e229"`
[INFO] running `"docker" "rm" "-f" "ba446a53d469934e06703b7f2281a0b8ac17ddc4d01a469d87a6deed6b03e229"`
[INFO] [stdout] ba446a53d469934e06703b7f2281a0b8ac17ddc4d01a469d87a6deed6b03e229
[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/gh/iveltondequeiroz/port-sniffer-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 793bca44bca6b5cbc367c8dcbc8a02766dd2748c049c9d13de4f6438a07fad8b
[INFO] running `"docker" "start" "-a" "793bca44bca6b5cbc367c8dcbc8a02766dd2748c049c9d13de4f6438a07fad8b"`
[INFO] [stderr]    Compiling ip_sniffer v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: field is never used: `flag`
[INFO] [stderr]   --> src/main.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     flag: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "793bca44bca6b5cbc367c8dcbc8a02766dd2748c049c9d13de4f6438a07fad8b"`
[INFO] running `"docker" "rm" "-f" "793bca44bca6b5cbc367c8dcbc8a02766dd2748c049c9d13de4f6438a07fad8b"`
[INFO] [stdout] 793bca44bca6b5cbc367c8dcbc8a02766dd2748c049c9d13de4f6438a07fad8b
[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/gh/iveltondequeiroz/port-sniffer-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 794d79b2a80c12c179da9fd0d32620e7ae551e9ccfd3187b436cc5560df43085
[INFO] running `"docker" "start" "-a" "794d79b2a80c12c179da9fd0d32620e7ae551e9ccfd3187b436cc5560df43085"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/crater/target/debug/deps/ip_sniffer-331c7c4755540a87
[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" "794d79b2a80c12c179da9fd0d32620e7ae551e9ccfd3187b436cc5560df43085"`
[INFO] running `"docker" "rm" "-f" "794d79b2a80c12c179da9fd0d32620e7ae551e9ccfd3187b436cc5560df43085"`
[INFO] [stdout] 794d79b2a80c12c179da9fd0d32620e7ae551e9ccfd3187b436cc5560df43085