[INFO] updating cached repository justinliew/tcp_rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/justinliew/tcp_rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/justinliew/tcp_rust" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/justinliew/tcp_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/justinliew/tcp_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/justinliew/tcp_rust" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/justinliew/tcp_rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/justinliew/tcp_rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9d7bdaa46ffd20a21db8617dd97da8139e0d7235
[INFO] sha for GitHub repo justinliew/tcp_rust: 9d7bdaa46ffd20a21db8617dd97da8139e0d7235
[INFO] validating manifest of justinliew/tcp_rust on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of justinliew/tcp_rust on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing justinliew/tcp_rust
[INFO] finished frobbing justinliew/tcp_rust
[INFO] frobbed toml for justinliew/tcp_rust written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/justinliew/tcp_rust/Cargo.toml
[INFO] started frobbing justinliew/tcp_rust
[INFO] finished frobbing justinliew/tcp_rust
[INFO] frobbed toml for justinliew/tcp_rust written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/justinliew/tcp_rust/Cargo.toml
[INFO] crate justinliew/tcp_rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/justinliew/tcp_rust/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking justinliew/tcp_rust against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-4/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/justinliew/tcp_rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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=forbid" "-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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] e9ba8c283b2cb7b1d512b377c0d1051b687a8df0320578a56df36f91af67a396
[INFO] running `"docker" "start" "-a" "e9ba8c283b2cb7b1d512b377c0d1051b687a8df0320578a56df36f91af67a396"`
[INFO] [stderr]    Compiling tun-tap v0.1.2
[INFO] [stderr]     Checking etherparse v0.8.2
[INFO] [stderr]     Checking tcp_rust v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variant is never constructed: `Closed`
[INFO] [stderr]  --> src/tcp.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     Closed,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SynRcvd`
[INFO] [stderr]  --> src/tcp.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     SynRcvd,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Estab`
[INFO] [stderr]  --> src/tcp.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     Estab,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Closed`
[INFO] [stderr]  --> src/tcp.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     Closed,
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SynRcvd`
[INFO] [stderr]  --> src/tcp.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     SynRcvd,
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Estab`
[INFO] [stderr]  --> src/tcp.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     Estab,
[INFO] [stderr]   |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.13s
[INFO] running `"docker" "inspect" "e9ba8c283b2cb7b1d512b377c0d1051b687a8df0320578a56df36f91af67a396"`
[INFO] running `"docker" "rm" "-f" "e9ba8c283b2cb7b1d512b377c0d1051b687a8df0320578a56df36f91af67a396"`
[INFO] [stdout] e9ba8c283b2cb7b1d512b377c0d1051b687a8df0320578a56df36f91af67a396