[INFO] cloning repository https://github.com/haoweig/trust_learn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/haoweig/trust_learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaoweig%2Ftrust_learn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaoweig%2Ftrust_learn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] feedc9e081f8b54ff3a3cc5651213c5f2ff6fba8
[INFO] testing haoweig/trust_learn against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaoweig%2Ftrust_learn" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/haoweig/trust_learn
[INFO] finished tweaking git repo https://github.com/haoweig/trust_learn
[INFO] tweaked toml for git repo https://github.com/haoweig/trust_learn written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/haoweig/trust_learn on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/haoweig/trust_learn 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" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] Updating crates.io index
[INFO] [stderr] Downloading crates ...
[INFO] [stderr] Downloaded tun-tap v0.1.4
[INFO] [stderr] Downloaded etherparse v0.8.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b6b48f47beee3dd1accb3ef2d27881a39808021c97ed923d808427ae994b53b
[INFO] running `Command { std: "docker" "start" "-a" "9b6b48f47beee3dd1accb3ef2d27881a39808021c97ed923d808427ae994b53b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b6b48f47beee3dd1accb3ef2d27881a39808021c97ed923d808427ae994b53b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b6b48f47beee3dd1accb3ef2d27881a39808021c97ed923d808427ae994b53b", kill_on_drop: false }`
[INFO] [stdout] 9b6b48f47beee3dd1accb3ef2d27881a39808021c97ed923d808427ae994b53b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e01cb6c7a4a04272fc2840d07a20e7a9fc572665ed70a74c3ce228c57de976eb
[INFO] running `Command { std: "docker" "start" "-a" "e01cb6c7a4a04272fc2840d07a20e7a9fc572665ed70a74c3ce228c57de976eb", kill_on_drop: false }`
[INFO] [stderr] Compiling libc v0.2.155
[INFO] [stderr] Compiling crossbeam-utils v0.7.2
[INFO] [stderr] Compiling futures v0.1.31
[INFO] [stderr] Compiling log v0.4.21
[INFO] [stderr] Compiling memoffset v0.5.6
[INFO] [stderr] Compiling crossbeam-epoch v0.8.2
[INFO] [stderr] Compiling cc v1.0.98
[INFO] [stderr] Compiling scoped-tls v0.1.2
[INFO] [stderr] Compiling lock_api v0.3.4
[INFO] [stderr] Compiling etherparse v0.8.3
[INFO] [stderr] Compiling parking_lot_core v0.6.3
[INFO] [stderr] Compiling parking_lot v0.9.0
[INFO] [stderr] Compiling smallvec v0.6.14
[INFO] [stderr] Compiling crossbeam-queue v0.2.3
[INFO] [stderr] Compiling iovec v0.1.4
[INFO] [stderr] Compiling num_cpus v1.16.0
[INFO] [stderr] Compiling net2 v0.2.39
[INFO] [stderr] Compiling bytes v0.4.12
[INFO] [stderr] Compiling mio v0.6.23
[INFO] [stderr] Compiling crossbeam-deque v0.7.4
[INFO] [stderr] Compiling tun-tap v0.1.4
[INFO] [stderr] Compiling tokio-executor v0.1.10
[INFO] [stderr] Compiling tokio-io v0.1.13
[INFO] [stderr] Compiling tokio-sync v0.1.8
[INFO] [stderr] Compiling mio-uds v0.6.8
[INFO] [stderr] Compiling tokio-current-thread v0.1.7
[INFO] [stderr] Compiling tokio-timer v0.2.13
[INFO] [stderr] Compiling tokio-threadpool v0.1.18
[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-udp v0.1.6
[INFO] [stderr] Compiling tokio-tcp v0.1.4
[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 trust2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout] --> src/tcp.rs:89:17
[INFO] [stdout] |
[INFO] [stdout] 89 | Ok(Some((c)))
[INFO] [stdout] | ^ ^
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout] |
[INFO] [stdout] 89 - Ok(Some((c)))
[INFO] [stdout] 89 + Ok(Some(c ))
[INFO] [stdout] |
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout] --> src/main.rs:68:5
[INFO] [stdout] |
[INFO] [stdout] 17 | / loop {
[INFO] [stdout] 18 | | let nbytes = nic.recv(&mut buf [..])?;
[INFO] [stdout] ... |
[INFO] [stdout] 67 | | }
[INFO] [stdout] | |_____- any code following this expression is unreachable
[INFO] [stdout] 68 | Ok(())
[INFO] [stdout] | ^^^^^^ unreachable expression
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout] --> src/tcp.rs:46:13
[INFO] [stdout] |
[INFO] [stdout] 46 | let mut c = Connection {
[INFO] [stdout] | ----^
[INFO] [stdout] | |
[INFO] [stdout] | help: remove this `mut`
[INFO] [stdout] |
[INFO] [stdout] = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout] --> src/tcp.rs:74:13
[INFO] [stdout] |
[INFO] [stdout] 74 | let mut ip = etherparse::Ipv4Header::new(syn_ack.header_len(),
[INFO] [stdout] | ----^^
[INFO] [stdout] | |
[INFO] [stdout] | help: remove this `mut`
[INFO] [stdout]
[INFO] [stdout]
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout] --> src/tcp.rs:38:9
[INFO] [stdout] |
[INFO] [stdout] 38 | data: &'a[u8]) -> io::Result