[INFO] cloning repository https://github.com/shhx/speeder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shhx/speeder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshhx%2Fspeeder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshhx%2Fspeeder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a88dbbbcad2c507d094b3c53b74e73bd3a620e84
[INFO] testing shhx/speeder against master#9e297bf54d31eb3b30067208ff9af4416945a2ed for pr-125507
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshhx%2Fspeeder" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/shhx/speeder on toolchain 9e297bf54d31eb3b30067208ff9af4416945a2ed
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/shhx/speeder
[INFO] finished tweaking git repo https://github.com/shhx/speeder
[INFO] tweaked toml for git repo https://github.com/shhx/speeder written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/shhx/speeder already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 464d69bc99113168e70f09f01f8dbc8436b7eb68594c8072ed48e587dd2bdd21
[INFO] running `Command { std: "docker" "start" "-a" "464d69bc99113168e70f09f01f8dbc8436b7eb68594c8072ed48e587dd2bdd21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "464d69bc99113168e70f09f01f8dbc8436b7eb68594c8072ed48e587dd2bdd21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "464d69bc99113168e70f09f01f8dbc8436b7eb68594c8072ed48e587dd2bdd21", kill_on_drop: false }`
[INFO] [stdout] 464d69bc99113168e70f09f01f8dbc8436b7eb68594c8072ed48e587dd2bdd21
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 681d891458f2f9783e382b81bd0946a6c494d7d7023531c9d014147f46be2deb
[INFO] running `Command { std: "docker" "start" "-a" "681d891458f2f9783e382b81bd0946a6c494d7d7023531c9d014147f46be2deb", kill_on_drop: false }`
[INFO] [stderr]    Compiling server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/bin/client.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /         loop {
[INFO] [stdout] 17 | |             socket.send_to(&[0; MAX_DATA_LENGTH], &addr).expect("couldn't send data");
[INFO] [stdout] 18 | |         }
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 19 |       } // the socket is closed here
[INFO] [stdout] 20 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "681d891458f2f9783e382b81bd0946a6c494d7d7023531c9d014147f46be2deb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "681d891458f2f9783e382b81bd0946a6c494d7d7023531c9d014147f46be2deb", kill_on_drop: false }`
[INFO] [stdout] 681d891458f2f9783e382b81bd0946a6c494d7d7023531c9d014147f46be2deb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf6e4c5330e9d519dbb502f707346bdcb098f20652b3eadc470474e9ed0faac3
[INFO] running `Command { std: "docker" "start" "-a" "cf6e4c5330e9d519dbb502f707346bdcb098f20652b3eadc470474e9ed0faac3", kill_on_drop: false }`
[INFO] [stderr]    Compiling server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/bin/client.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | /         loop {
[INFO] [stdout] 17 | |             socket.send_to(&[0; MAX_DATA_LENGTH], &addr).expect("couldn't send data");
[INFO] [stdout] 18 | |         }
[INFO] [stdout]    | |_________- any code following this expression is unreachable
[INFO] [stdout] 19 |       } // the socket is closed here
[INFO] [stdout] 20 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "cf6e4c5330e9d519dbb502f707346bdcb098f20652b3eadc470474e9ed0faac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf6e4c5330e9d519dbb502f707346bdcb098f20652b3eadc470474e9ed0faac3", kill_on_drop: false }`
[INFO] [stdout] cf6e4c5330e9d519dbb502f707346bdcb098f20652b3eadc470474e9ed0faac3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+9e297bf54d31eb3b30067208ff9af4416945a2ed" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9be0662cac567f5a6d156b2c4ef44ad60e4ec86b05cad7542582ee2a31557faf
[INFO] running `Command { std: "docker" "start" "-a" "9be0662cac567f5a6d156b2c4ef44ad60e4ec86b05cad7542582ee2a31557faf", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/bin/client.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 16 | /         loop {
[INFO] [stderr] 17 | |             socket.send_to(&[0; MAX_DATA_LENGTH], &addr).expect("couldn't send data");
[INFO] [stderr] 18 | |         }
[INFO] [stderr]    | |_________- any code following this expression is unreachable
[INFO] [stderr] 19 |       } // the socket is closed here
[INFO] [stderr] 20 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `server` (bin "client" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/bin/client.rs (/opt/rustwide/target/debug/deps/client-860b3e4bbca13615)
[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] [stderr]      Running unittests src/bin/server.rs (/opt/rustwide/target/debug/deps/server-c0d1a27390271d47)
[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" "9be0662cac567f5a6d156b2c4ef44ad60e4ec86b05cad7542582ee2a31557faf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9be0662cac567f5a6d156b2c4ef44ad60e4ec86b05cad7542582ee2a31557faf", kill_on_drop: false }`
[INFO] [stdout] 9be0662cac567f5a6d156b2c4ef44ad60e4ec86b05cad7542582ee2a31557faf