[INFO] cloning repository https://github.com/Pk-Kher/tcp-in-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Pk-Kher/tcp-in-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPk-Kher%2Ftcp-in-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPk-Kher%2Ftcp-in-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 84a0c3cfa3fb6babd9ffe7c7f1328de98a314f12
[INFO] checking Pk-Kher/tcp-in-rust against try#53f0b05ecbcf011a1f77f1c627304e87ebd05801 for pr-154492-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPk-Kher%2Ftcp-in-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Pk-Kher/tcp-in-rust
[INFO] finished tweaking git repo https://github.com/Pk-Kher/tcp-in-rust
[INFO] tweaked toml for git repo https://github.com/Pk-Kher/tcp-in-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Pk-Kher/tcp-in-rust on toolchain 53f0b05ecbcf011a1f77f1c627304e87ebd05801
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Pk-Kher/tcp-in-rust 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" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 738dd08406372b307e007fce79b81b5713e3bb066ec6b4fae90170978e1bb5a8
[INFO] running `Command { std: "docker" "start" "-a" "738dd08406372b307e007fce79b81b5713e3bb066ec6b4fae90170978e1bb5a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "738dd08406372b307e007fce79b81b5713e3bb066ec6b4fae90170978e1bb5a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "738dd08406372b307e007fce79b81b5713e3bb066ec6b4fae90170978e1bb5a8", kill_on_drop: false }`
[INFO] [stdout] 738dd08406372b307e007fce79b81b5713e3bb066ec6b4fae90170978e1bb5a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+53f0b05ecbcf011a1f77f1c627304e87ebd05801" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfcd34c635dcdea8fad7fb01d10006e141e2b93c759027bd7db6938fe59ff17a
[INFO] running `Command { std: "docker" "start" "-a" "dfcd34c635dcdea8fad7fb01d10006e141e2b93c759027bd7db6938fe59ff17a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking log v0.4.28
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling cc v1.2.48
[INFO] [stderr]    Compiling cfg_aliases v0.2.1
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]    Compiling nix v0.30.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking etherparse v0.19.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling tun-tap v0.1.4
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.18
[INFO] [stderr]     Checking tcp_in_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `any::Any`, `error::Error`, and `time::Duration`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     any::Any,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 3 |     collections::{HashMap, VecDeque, hash_map::Entry},
[INFO] [stdout] 4 |     error::Error,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     time::Duration,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `any::Any`, `error::Error`, and `time::Duration`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     any::Any,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 3 |     collections::{HashMap, VecDeque, hash_map::Entry},
[INFO] [stdout] 4 |     error::Error,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     time::Duration,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Bits`
[INFO] [stdout]  --> src/tcp.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use bitflags::{Bits, bitflags};
[INFO] [stdout]   |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Bits`
[INFO] [stdout]  --> src/tcp.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use bitflags::{Bits, bitflags};
[INFO] [stdout]   |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `etherparse::err::tcp`
[INFO] [stdout]   --> src/tcp.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use etherparse::err::tcp;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `etherparse::err::tcp`
[INFO] [stdout]   --> src/tcp.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use etherparse::err::tcp;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/tcp.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     error::Error,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> src/tcp.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     error::Error,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nacked`
[INFO] [stdout]    --> src/tcp.rs:460:25
[INFO] [stdout]     |
[INFO] [stdout] 460 |                     let nacked = self
[INFO] [stdout]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_nacked`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nacked`
[INFO] [stdout]    --> src/tcp.rs:460:25
[INFO] [stdout]     |
[INFO] [stdout] 460 |                     let nacked = self
[INFO] [stdout]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_nacked`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:93:29
[INFO] [stdout]    |
[INFO] [stdout] 93 |                         let mut cm=&mut *cmg;
[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/lib.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let mut iface = Iface::without_packet_info("mytun", Mode::Tun)?;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 | ...   let mut buffer = vec![0u8; 1504]; // 1504 It comes from the maximum size of an IPv4/IPv6 packet plus a little extra padding t...
[INFO] [stdout]     |           ----^^^^^^
[INFO] [stdout]     |           |
[INFO] [stdout]     |           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]    --> src/lib.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 | ...   let mut buffer = vec![0u8; 1504]; // 1504 It comes from the maximum size of an IPv4/IPv6 packet plus a little extra padding t...
[INFO] [stdout]     |           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:93:29
[INFO] [stdout]    |
[INFO] [stdout] 93 |                         let mut cm=&mut *cmg;
[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: unused variable: `cm`
[INFO] [stdout]    --> src/lib.rs:243:13
[INFO] [stdout]     |
[INFO] [stdout] 243 |         let cm = self.h.manager.lock().unwrap();
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_cm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:146:13
[INFO] [stdout]     |
[INFO] [stdout] 146 |         let mut iface = Iface::without_packet_info("mytun", Mode::Tun)?;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/lib.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 | ...   let mut buffer = vec![0u8; 1504]; // 1504 It comes from the maximum size of an IPv4/IPv6 packet plus a little extra padding t...
[INFO] [stdout]     |           ----^^^^^^
[INFO] [stdout]     |           |
[INFO] [stdout]     |           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buffer`
[INFO] [stdout]    --> src/lib.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 148 | ...   let mut buffer = vec![0u8; 1504]; // 1504 It comes from the maximum size of an IPv4/IPv6 packet plus a little extra padding t...
[INFO] [stdout]     |           ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buffer`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `up`, `wl1`, and `wl2` are never read
[INFO] [stdout]    --> src/tcp.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout]  96 | struct SendSequenceSpace {
[INFO] [stdout]     |        ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 104 |     up: bool,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 105 |     ///segment sequence number used for last window update
[INFO] [stdout] 106 |     wl1: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 107 |     ///segment acknowledgment number used for last window update
[INFO] [stdout] 108 |     wl2: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cm`
[INFO] [stdout]    --> src/lib.rs:243:13
[INFO] [stdout]     |
[INFO] [stdout] 243 |         let cm = self.h.manager.lock().unwrap();
[INFO] [stdout]     |             ^^ help: if this is intentional, prefix it with an underscore: `_cm`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `up` and `irs` are never read
[INFO] [stdout]    --> src/tcp.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 123 | struct ReceiveSequenceSpace {
[INFO] [stdout]     |        -------------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 129 |     up: bool,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 130 |     ///initial receive sequence number
[INFO] [stdout] 131 |     irs: u32,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `up`, `wl1`, and `wl2` are never read
[INFO] [stdout]    --> src/tcp.rs:104:5
[INFO] [stdout]     |
[INFO] [stdout]  96 | struct SendSequenceSpace {
[INFO] [stdout]     |        ----------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 104 |     up: bool,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 105 |     ///segment sequence number used for last window update
[INFO] [stdout] 106 |     wl1: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 107 |     ///segment acknowledgment number used for last window update
[INFO] [stdout] 108 |     wl2: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `up` and `irs` are never read
[INFO] [stdout]    --> src/tcp.rs:129:5
[INFO] [stdout]     |
[INFO] [stdout] 123 | struct ReceiveSequenceSpace {
[INFO] [stdout]     |        -------------------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 129 |     up: bool,
[INFO] [stdout]     |     ^^
[INFO] [stdout] 130 |     ///initial receive sequence number
[INFO] [stdout] 131 |     irs: u32,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.92s
[INFO] running `Command { std: "docker" "inspect" "dfcd34c635dcdea8fad7fb01d10006e141e2b93c759027bd7db6938fe59ff17a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfcd34c635dcdea8fad7fb01d10006e141e2b93c759027bd7db6938fe59ff17a", kill_on_drop: false }`
[INFO] [stdout] dfcd34c635dcdea8fad7fb01d10006e141e2b93c759027bd7db6938fe59ff17a
