[INFO] updating cached repository polachok/test-tokio-fairness
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/polachok/test-tokio-fairness
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/polachok/test-tokio-fairness" "work/ex/beta-1.38-1/sources/1.37.0/gh/polachok/test-tokio-fairness"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/polachok/test-tokio-fairness'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/polachok/test-tokio-fairness" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/polachok/test-tokio-fairness"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/polachok/test-tokio-fairness'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] dcc70c553cf8e3a08b6739a2280a7b235d63386c
[INFO] sha for GitHub repo polachok/test-tokio-fairness: dcc70c553cf8e3a08b6739a2280a7b235d63386c
[INFO] validating manifest of polachok/test-tokio-fairness 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 polachok/test-tokio-fairness 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 polachok/test-tokio-fairness
[INFO] finished frobbing polachok/test-tokio-fairness
[INFO] frobbed toml for polachok/test-tokio-fairness written to work/ex/beta-1.38-1/sources/1.37.0/gh/polachok/test-tokio-fairness/Cargo.toml
[INFO] started frobbing polachok/test-tokio-fairness
[INFO] finished frobbing polachok/test-tokio-fairness
[INFO] frobbed toml for polachok/test-tokio-fairness written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/polachok/test-tokio-fairness/Cargo.toml
[INFO] crate polachok/test-tokio-fairness 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 polachok/test-tokio-fairness 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-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/polachok/test-tokio-fairness:/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] 241c712283971509060545842eb37bb232162b60a02fd599b27cf690f0af4979
[INFO] running `"docker" "start" "-a" "241c712283971509060545842eb37bb232162b60a02fd599b27cf690f0af4979"`
[INFO] [stderr]    Compiling errno v0.2.4
[INFO] [stderr]    Compiling bytes v0.4.9
[INFO] [stderr]    Compiling tokio-executor v0.1.4
[INFO] [stderr]    Compiling tsc v0.1.0
[INFO] [stderr]    Compiling mio v0.6.15
[INFO] [stderr]    Compiling scheduler v0.1.3
[INFO] [stderr]    Compiling tokio-threadpool v0.1.6
[INFO] [stderr]    Compiling tokio-current-thread v0.1.1
[INFO] [stderr]    Compiling tokio-timer v0.2.6
[INFO] [stderr]    Compiling tokio-io v0.1.8
[INFO] [stderr]    Compiling mio-uds v0.6.6
[INFO] [stderr]    Compiling tokio-reactor v0.1.5
[INFO] [stderr]    Compiling tokio-codec v0.1.0
[INFO] [stderr]    Compiling tokio-fs v0.1.3
[INFO] [stderr]    Compiling tokio-tcp v0.1.1
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio-uds v0.2.1
[INFO] [stderr]    Compiling tokio v0.1.8
[INFO] [stderr]    Compiling test-tokio-fairness v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `TcpStream`
[INFO] [stderr]   --> src/main.rs:98:30
[INFO] [stderr]    |
[INFO] [stderr] 98 |     use mio::net::{TcpListener, TcpStream};
[INFO] [stderr]    |                                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TcpStream`
[INFO] [stderr]    --> src/main.rs:158:30
[INFO] [stderr]     |
[INFO] [stderr] 158 |     use mio::net::{TcpListener, TcpStream};
[INFO] [stderr]     |                                 ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/main.rs:230:47
[INFO] [stderr]     |
[INFO] [stderr] 230 |             }).or_else(move |err| { panic!("{}", err); Ok(Loop::Break(())) })
[INFO] [stderr]     |                                                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.69s
[INFO] running `"docker" "inspect" "241c712283971509060545842eb37bb232162b60a02fd599b27cf690f0af4979"`
[INFO] running `"docker" "rm" "-f" "241c712283971509060545842eb37bb232162b60a02fd599b27cf690f0af4979"`
[INFO] [stdout] 241c712283971509060545842eb37bb232162b60a02fd599b27cf690f0af4979
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/polachok/test-tokio-fairness:/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] 4dc97260617f7f8860e448aa24ef1f304df7e872ac43a288c28e2213ad8bb500
[INFO] running `"docker" "start" "-a" "4dc97260617f7f8860e448aa24ef1f304df7e872ac43a288c28e2213ad8bb500"`
[INFO] [stderr]    Compiling test-tokio-fairness v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `TcpStream`
[INFO] [stderr]   --> src/main.rs:98:30
[INFO] [stderr]    |
[INFO] [stderr] 98 |     use mio::net::{TcpListener, TcpStream};
[INFO] [stderr]    |                                 ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TcpStream`
[INFO] [stderr]    --> src/main.rs:158:30
[INFO] [stderr]     |
[INFO] [stderr] 158 |     use mio::net::{TcpListener, TcpStream};
[INFO] [stderr]     |                                 ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/main.rs:230:47
[INFO] [stderr]     |
[INFO] [stderr] 230 |             }).or_else(move |err| { panic!("{}", err); Ok(Loop::Break(())) })
[INFO] [stderr]     |                                                        ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unreachable_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `"docker" "inspect" "4dc97260617f7f8860e448aa24ef1f304df7e872ac43a288c28e2213ad8bb500"`
[INFO] running `"docker" "rm" "-f" "4dc97260617f7f8860e448aa24ef1f304df7e872ac43a288c28e2213ad8bb500"`
[INFO] [stdout] 4dc97260617f7f8860e448aa24ef1f304df7e872ac43a288c28e2213ad8bb500
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/polachok/test-tokio-fairness:/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] 871337b1b2df7b92bcdb0970b8aba238c54d896de916d744afa25c5d95938fd1
[INFO] running `"docker" "start" "-a" "871337b1b2df7b92bcdb0970b8aba238c54d896de916d744afa25c5d95938fd1"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stdout] 
[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] [stderr]      Running /opt/crater/target/debug/deps/test_tokio_fairness-2dcef4874d04768a
[INFO] running `"docker" "inspect" "871337b1b2df7b92bcdb0970b8aba238c54d896de916d744afa25c5d95938fd1"`
[INFO] running `"docker" "rm" "-f" "871337b1b2df7b92bcdb0970b8aba238c54d896de916d744afa25c5d95938fd1"`
[INFO] [stdout] 871337b1b2df7b92bcdb0970b8aba238c54d896de916d744afa25c5d95938fd1