[INFO] cloning repository https://github.com/skagur-k/tcp-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/skagur-k/tcp-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskagur-k%2Ftcp-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskagur-k%2Ftcp-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9cc809c37a6fc527b82780adb52fa15d3f5c3de5
[INFO] testing skagur-k/tcp-rust against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskagur-k%2Ftcp-rust" "/workspace/builds/worker-20/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-20/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/skagur-k/tcp-rust on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/skagur-k/tcp-rust
[INFO] finished tweaking git repo https://github.com/skagur-k/tcp-rust
[INFO] tweaked toml for git repo https://github.com/skagur-k/tcp-rust written to /workspace/builds/worker-20/source/Cargo.toml
[INFO] crate git repo https://github.com/skagur-k/tcp-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5be61b64dfb570c4b31d3372fcd53f79061f1eefeee2b90933c4271787f22ce8
[INFO] running `Command { std: "docker" "start" "-a" "5be61b64dfb570c4b31d3372fcd53f79061f1eefeee2b90933c4271787f22ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5be61b64dfb570c4b31d3372fcd53f79061f1eefeee2b90933c4271787f22ce8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5be61b64dfb570c4b31d3372fcd53f79061f1eefeee2b90933c4271787f22ce8", kill_on_drop: false }`
[INFO] [stdout] 5be61b64dfb570c4b31d3372fcd53f79061f1eefeee2b90933c4271787f22ce8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 386fe42b4dade935b83c6319537dc4772df76f76a490ce87fe51b864e92a02e7
[INFO] running `Command { std: "docker" "start" "-a" "386fe42b4dade935b83c6319537dc4772df76f76a490ce87fe51b864e92a02e7", kill_on_drop: false }`
[INFO] [stderr] Blocking waiting for file lock on package cache
[INFO] [stderr] Compiling libc v0.2.121
[INFO] [stderr] Compiling futures v0.1.31
[INFO] [stderr] Compiling log v0.4.16
[INFO] [stderr] Compiling slab v0.4.5
[INFO] [stderr] Compiling cc v1.0.73
[INFO] [stderr] Compiling scoped-tls v0.1.2
[INFO] [stderr] Compiling etherparse v0.10.1
[INFO] [stderr] Compiling crossbeam-utils v0.7.2
[INFO] [stderr] Compiling memoffset v0.5.6
[INFO] [stderr] Compiling crossbeam-epoch v0.8.2
[INFO] [stderr] Compiling smallvec v0.6.14
[INFO] [stderr] Compiling tun-tap v0.1.2
[INFO] [stderr] Compiling iovec v0.1.4
[INFO] [stderr] Compiling num_cpus v1.13.1
[INFO] [stderr] Compiling net2 v0.2.37
[INFO] [stderr] Compiling parking_lot_core v0.6.2
[INFO] [stderr] Compiling tokio-sync v0.1.8
[INFO] [stderr] Compiling bytes v0.4.12
[INFO] [stderr] Compiling tokio-executor v0.1.10
[INFO] [stderr] Compiling crossbeam-queue v0.2.3
[INFO] [stderr] Compiling parking_lot v0.9.0
[INFO] [stderr] Compiling mio v0.6.23
[INFO] [stderr] Compiling tokio-timer v0.2.13
[INFO] [stderr] Compiling tokio-current-thread v0.1.7
[INFO] [stderr] Compiling crossbeam-deque v0.7.4
[INFO] [stderr] Compiling tokio-io v0.1.13
[INFO] [stderr] Compiling tokio-threadpool v0.1.18
[INFO] [stderr] Compiling mio-uds v0.6.8
[INFO] [stderr] Compiling tokio-reactor v0.1.12
[INFO] [stderr] Compiling tokio-codec v0.1.2
[INFO] [stderr] Compiling tokio-fs v0.1.7
[INFO] [stderr] Compiling tokio-tcp v0.1.4
[INFO] [stderr] Compiling tokio-udp v0.1.6
[INFO] [stderr] Compiling tokio-uds v0.2.7
[INFO] [stderr] Compiling tokio v0.1.22
[INFO] [stderr] Compiling tokio-core v0.1.18
[INFO] [stderr] Compiling tcp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `unwritten`
[INFO] [stdout] --> src/tcp.rs:61:17
[INFO] [stdout] |
[INFO] [stdout] 61 | let mut unwritten = &mut buf[..];
[INFO] [stdout] | ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_unwritten`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout] --> src/tcp.rs:59:138
[INFO] [stdout] |
[INFO] [stdout] 59 | ...therparse::TcpHeaderSlice<'a>, data: &'a [u8] ) -> io::Result