[INFO] cloning repository https://github.com/polachok/test-tokio-fairness
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/polachok/test-tokio-fairness" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpolachok%2Ftest-tokio-fairness", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpolachok%2Ftest-tokio-fairness'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dcc70c553cf8e3a08b6739a2280a7b235d63386c
[INFO] testing polachok/test-tokio-fairness against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpolachok%2Ftest-tokio-fairness" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/polachok/test-tokio-fairness on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/polachok/test-tokio-fairness
[INFO] finished tweaking git repo https://github.com/polachok/test-tokio-fairness
[INFO] tweaked toml for git repo https://github.com/polachok/test-tokio-fairness written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/polachok/test-tokio-fairness already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-threadpool v0.1.6
[INFO] [stderr]   Downloaded tokio-current-thread v0.1.1
[INFO] [stderr]   Downloaded tokio-uds v0.2.1
[INFO] [stderr]   Downloaded cc v1.0.23
[INFO] [stderr]   Downloaded tokio v0.1.8
[INFO] [stderr]   Downloaded tsc v0.1.0
[INFO] [stderr]   Downloaded scheduler v0.1.3
[INFO] [stderr]   Downloaded parking_lot_core v0.3.0
[INFO] [stderr]   Downloaded tokio-timer v0.2.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ef3c54d3d1a58296c6d898c443a7eb9071cb9272b713285443caa274f242fa6
[INFO] running `Command { std: "docker" "start" "-a" "4ef3c54d3d1a58296c6d898c443a7eb9071cb9272b713285443caa274f242fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ef3c54d3d1a58296c6d898c443a7eb9071cb9272b713285443caa274f242fa6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ef3c54d3d1a58296c6d898c443a7eb9071cb9272b713285443caa274f242fa6", kill_on_drop: false }`
[INFO] [stdout] 4ef3c54d3d1a58296c6d898c443a7eb9071cb9272b713285443caa274f242fa6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee935d3a17fd548c351b06ca92635344280c53c3a42507867946cb3ee3b11ed6
[INFO] running `Command { std: "docker" "start" "-a" "ee935d3a17fd548c351b06ca92635344280c53c3a42507867946cb3ee3b11ed6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling futures v0.1.23
[INFO] [stderr]    Compiling version_check v0.1.4
[INFO] [stderr]    Compiling scopeguard v0.3.3
[INFO] [stderr]    Compiling crossbeam-utils v0.5.0
[INFO] [stderr]    Compiling rand_core v0.2.1
[INFO] [stderr]    Compiling byteorder v1.2.6
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]    Compiling slab v0.4.1
[INFO] [stderr]    Compiling lazycell v0.6.0
[INFO] [stderr]    Compiling nodrop v0.1.12
[INFO] [stderr]    Compiling memoffset v0.2.1
[INFO] [stderr]    Compiling cc v1.0.23
[INFO] [stderr]    Compiling smallvec v0.6.5
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling arrayvec v0.4.7
[INFO] [stderr]    Compiling lock_api v0.1.3
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.5.2
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling errno v0.2.4
[INFO] [stderr]    Compiling crossbeam-deque v0.6.1
[INFO] [stderr]    Compiling scheduler v0.1.3
[INFO] [stderr]    Compiling tsc v0.1.0
[INFO] [stderr]    Compiling bytes v0.4.9
[INFO] [stderr]    Compiling mio v0.6.15
[INFO] [stderr]    Compiling mio-uds v0.6.6
[INFO] [stderr]    Compiling parking_lot_core v0.3.0
[INFO] [stderr]    Compiling tokio-executor v0.1.4
[INFO] [stderr]    Compiling tokio-io v0.1.8
[INFO] [stderr]    Compiling parking_lot v0.6.4
[INFO] [stderr]    Compiling tokio-threadpool v0.1.6
[INFO] [stderr]    Compiling tokio-timer v0.2.6
[INFO] [stderr]    Compiling tokio-current-thread v0.1.1
[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-uds v0.2.1
[INFO] [stderr]    Compiling tokio-udp v0.1.2
[INFO] [stderr]    Compiling tokio v0.1.8
[INFO] [stderr]    Compiling test-tokio-fairness v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `TcpStream`
[INFO] [stdout]   --> src/main.rs:98:30
[INFO] [stdout]    |
[INFO] [stdout] 98 |     use mio::net::{TcpListener, TcpStream};
[INFO] [stdout]    |                                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TcpStream`
[INFO] [stdout]    --> src/main.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 |     use mio::net::{TcpListener, TcpStream};
[INFO] [stdout]     |                                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:230:47
[INFO] [stdout]     |
[INFO] [stdout] 230 |             }).or_else(move |err| { panic!("{}", err); Ok(Loop::Break(())) })
[INFO] [stdout]     |                                     ------------------ ^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |                                     |
[INFO] [stdout]     |                                     any code following this expression is unreachable
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.84s
[INFO] running `Command { std: "docker" "inspect" "ee935d3a17fd548c351b06ca92635344280c53c3a42507867946cb3ee3b11ed6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee935d3a17fd548c351b06ca92635344280c53c3a42507867946cb3ee3b11ed6", kill_on_drop: false }`
[INFO] [stdout] ee935d3a17fd548c351b06ca92635344280c53c3a42507867946cb3ee3b11ed6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86239e8a2ba691c63a8ef27b20ebf2b2a53219792b280b79abc63c3238988d08
[INFO] running `Command { std: "docker" "start" "-a" "86239e8a2ba691c63a8ef27b20ebf2b2a53219792b280b79abc63c3238988d08", kill_on_drop: false }`
[INFO] [stderr]    Compiling test-tokio-fairness v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `TcpStream`
[INFO] [stdout]   --> src/main.rs:98:30
[INFO] [stdout]    |
[INFO] [stdout] 98 |     use mio::net::{TcpListener, TcpStream};
[INFO] [stdout]    |                                 ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TcpStream`
[INFO] [stdout]    --> src/main.rs:158:30
[INFO] [stdout]     |
[INFO] [stdout] 158 |     use mio::net::{TcpListener, TcpStream};
[INFO] [stdout]     |                                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:230:47
[INFO] [stdout]     |
[INFO] [stdout] 230 |             }).or_else(move |err| { panic!("{}", err); Ok(Loop::Break(())) })
[INFO] [stdout]     |                                     ------------------ ^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]     |                                     |
[INFO] [stdout]     |                                     any code following this expression is unreachable
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.34s
[INFO] running `Command { std: "docker" "inspect" "86239e8a2ba691c63a8ef27b20ebf2b2a53219792b280b79abc63c3238988d08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86239e8a2ba691c63a8ef27b20ebf2b2a53219792b280b79abc63c3238988d08", kill_on_drop: false }`
[INFO] [stdout] 86239e8a2ba691c63a8ef27b20ebf2b2a53219792b280b79abc63c3238988d08
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 049d61b5f8fd610f2f80e37d0cc92d01fef289e601a4e46129b25e22d9859788
[INFO] running `Command { std: "docker" "start" "-a" "049d61b5f8fd610f2f80e37d0cc92d01fef289e601a4e46129b25e22d9859788", kill_on_drop: false }`
[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]     |                                     ------------------ ^^^^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stderr]     |                                     |
[INFO] [stderr]     |                                     any code following this expression is unreachable
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `test-tokio-fairness` (bin "test-tokio-fairness" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.09s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/test_tokio_fairness-39caeb59461edabb)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "049d61b5f8fd610f2f80e37d0cc92d01fef289e601a4e46129b25e22d9859788", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "049d61b5f8fd610f2f80e37d0cc92d01fef289e601a4e46129b25e22d9859788", kill_on_drop: false }`
[INFO] [stdout] 049d61b5f8fd610f2f80e37d0cc92d01fef289e601a4e46129b25e22d9859788