[INFO] updating cached repository msehnout/netcat-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/msehnout/netcat-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/msehnout/netcat-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/msehnout/netcat-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/msehnout/netcat-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/msehnout/netcat-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/msehnout/netcat-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/msehnout/netcat-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 557e985c7816a5060f2362f90098151acbaadc74
[INFO] sha for GitHub repo msehnout/netcat-rs: 557e985c7816a5060f2362f90098151acbaadc74
[INFO] validating manifest of msehnout/netcat-rs 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 msehnout/netcat-rs 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 msehnout/netcat-rs
[INFO] finished frobbing msehnout/netcat-rs
[INFO] frobbed toml for msehnout/netcat-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/msehnout/netcat-rs/Cargo.toml
[INFO] started frobbing msehnout/netcat-rs
[INFO] finished frobbing msehnout/netcat-rs
[INFO] frobbed toml for msehnout/netcat-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/msehnout/netcat-rs/Cargo.toml
[INFO] crate msehnout/netcat-rs 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 msehnout/netcat-rs 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-4/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/msehnout/netcat-rs:/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] 9927285b1a3c618ec654a820da0471648e38b2855769621f6bd7b0adf2fa1c48
[INFO] running `"docker" "start" "-a" "9927285b1a3c618ec654a820da0471648e38b2855769621f6bd7b0adf2fa1c48"`
[INFO] [stderr]    Compiling term_size v0.2.3
[INFO] [stderr]    Compiling clap v2.20.5
[INFO] [stderr]    Compiling netcat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `config::*`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use config::*;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Config`
[INFO] [stderr]  --> src/config.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Config {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/config.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_timeout`
[INFO] [stderr]   --> src/config.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn set_timeout(&mut self, seconds: u64) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_timeout`
[INFO] [stderr]   --> src/config.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn get_timeout(&self) -> Duration {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.43s
[INFO] running `"docker" "inspect" "9927285b1a3c618ec654a820da0471648e38b2855769621f6bd7b0adf2fa1c48"`
[INFO] running `"docker" "rm" "-f" "9927285b1a3c618ec654a820da0471648e38b2855769621f6bd7b0adf2fa1c48"`
[INFO] [stdout] 9927285b1a3c618ec654a820da0471648e38b2855769621f6bd7b0adf2fa1c48
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/msehnout/netcat-rs:/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] 4009b759b0317e73823026dd1fb7648c326eeaac65d2b3055158dc62f5626d7b
[INFO] running `"docker" "start" "-a" "4009b759b0317e73823026dd1fb7648c326eeaac65d2b3055158dc62f5626d7b"`
[INFO] [stderr]    Compiling netcat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `config::*`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use config::*;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Config`
[INFO] [stderr]  --> src/config.rs:4:1
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Config {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/config.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn new() -> Self {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_timeout`
[INFO] [stderr]   --> src/config.rs:21:5
[INFO] [stderr]    |
[INFO] [stderr] 21 |     pub fn set_timeout(&mut self, seconds: u64) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_timeout`
[INFO] [stderr]   --> src/config.rs:26:5
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn get_timeout(&self) -> Duration {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `"docker" "inspect" "4009b759b0317e73823026dd1fb7648c326eeaac65d2b3055158dc62f5626d7b"`
[INFO] running `"docker" "rm" "-f" "4009b759b0317e73823026dd1fb7648c326eeaac65d2b3055158dc62f5626d7b"`
[INFO] [stdout] 4009b759b0317e73823026dd1fb7648c326eeaac65d2b3055158dc62f5626d7b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/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/msehnout/netcat-rs:/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] efd08340311f0df0c9aab07341885315f71a53ba106055201da8c43b5d3b9dc3
[INFO] running `"docker" "start" "-a" "efd08340311f0df0c9aab07341885315f71a53ba106055201da8c43b5d3b9dc3"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/netcat-2bf95b6771fcb001
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test modes::tests::pass ... 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" "efd08340311f0df0c9aab07341885315f71a53ba106055201da8c43b5d3b9dc3"`
[INFO] running `"docker" "rm" "-f" "efd08340311f0df0c9aab07341885315f71a53ba106055201da8c43b5d3b9dc3"`
[INFO] [stdout] efd08340311f0df0c9aab07341885315f71a53ba106055201da8c43b5d3b9dc3