[INFO] cloning repository ibaryshnikov/runtime-tcp-chat
[INFO] running `"git" "clone" "--bare" "git://github.com/ibaryshnikov/runtime-tcp-chat.git" "work/cache/sources/gh/ibaryshnikov/runtime-tcp-chat"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/ibaryshnikov/runtime-tcp-chat'...
[INFO] running `"git" "clone" "work/cache/sources/gh/ibaryshnikov/runtime-tcp-chat" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/ibaryshnikov/runtime-tcp-chat"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/ibaryshnikov/runtime-tcp-chat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ibaryshnikov/runtime-tcp-chat" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/ibaryshnikov/runtime-tcp-chat"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/ibaryshnikov/runtime-tcp-chat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f5ee8116139ee489647b4c524201dc49d8309ccd
[INFO] sha for GitHub repo ibaryshnikov/runtime-tcp-chat: f5ee8116139ee489647b4c524201dc49d8309ccd
[INFO] validating manifest of ibaryshnikov/runtime-tcp-chat on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ibaryshnikov/runtime-tcp-chat on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ibaryshnikov/runtime-tcp-chat
[INFO] finished frobbing ibaryshnikov/runtime-tcp-chat
[INFO] frobbed toml for ibaryshnikov/runtime-tcp-chat written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/ibaryshnikov/runtime-tcp-chat/Cargo.toml
[INFO] started frobbing ibaryshnikov/runtime-tcp-chat
[INFO] finished frobbing ibaryshnikov/runtime-tcp-chat
[INFO] frobbed toml for ibaryshnikov/runtime-tcp-chat written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/ibaryshnikov/runtime-tcp-chat/Cargo.toml
[INFO] crate ibaryshnikov/runtime-tcp-chat already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ibaryshnikov/runtime-tcp-chat against try#8ec8125bea94852768b56958f05da47666c21ab0 for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-4/try#8ec8125bea94852768b56958f05da47666c21ab0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/ibaryshnikov/runtime-tcp-chat:/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=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" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c4c687ee75f2a797bd9a480d36ae26c0a4d07253f071cdd58d0b5f747ae72be1
[INFO] running `"docker" "start" "-a" "c4c687ee75f2a797bd9a480d36ae26c0a4d07253f071cdd58d0b5f747ae72be1"`
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling proc-macro-nested v0.1.3
[INFO] [stderr]     Checking futures-core-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking async-datagram v2.2.0
[INFO] [stderr]     Checking async-ready v2.1.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking futures-channel-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking futures-io-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking futures-sink-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking parking_lot_core v0.4.0
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking crossbeam v0.6.0
[INFO] [stderr]    Compiling proc-macro-hack v0.5.7
[INFO] [stderr]    Compiling runtime-attributes v0.3.0-alpha.4
[INFO] [stderr]    Compiling futures-select-macro-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking futures-util-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking futures-executor-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking futures-preview v0.3.0-alpha.16
[INFO] [stderr]     Checking juliex v0.3.0-alpha.6
[INFO] [stderr]     Checking romio v0.3.0-alpha.8
[INFO] [stderr]     Checking runtime-raw v0.3.0-alpha.3
[INFO] [stderr]     Checking runtime-native v0.3.0-alpha.3
[INFO] [stderr]     Checking runtime v0.3.0-alpha.4
[INFO] [stderr]     Checking runtime-tcp-chat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:71:21
[INFO] [stderr]    |
[INFO] [stderr] 71 |                     Ok(())
[INFO] [stderr]    |                     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/main.rs:71:21
[INFO] [stderr]    |
[INFO] [stderr] 71 |                     Ok(())
[INFO] [stderr]    |                     ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 49.91s
[INFO] running `"docker" "inspect" "c4c687ee75f2a797bd9a480d36ae26c0a4d07253f071cdd58d0b5f747ae72be1"`
[INFO] running `"docker" "rm" "-f" "c4c687ee75f2a797bd9a480d36ae26c0a4d07253f071cdd58d0b5f747ae72be1"`
[INFO] [stdout] c4c687ee75f2a797bd9a480d36ae26c0a4d07253f071cdd58d0b5f747ae72be1