[INFO] cloning repository https://github.com/c0utin/tcp-no-reason
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/c0utin/tcp-no-reason" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc0utin%2Ftcp-no-reason", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc0utin%2Ftcp-no-reason'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b400ca49ea0d696a3226aeaeb5025f2ddb2e1961
[INFO] checking c0utin/tcp-no-reason against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc0utin%2Ftcp-no-reason" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/c0utin/tcp-no-reason
[INFO] finished tweaking git repo https://github.com/c0utin/tcp-no-reason
[INFO] tweaked toml for git repo https://github.com/c0utin/tcp-no-reason written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/c0utin/tcp-no-reason on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/c0utin/tcp-no-reason 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c2a3e01d4785ecfc006bcc890da7117d46c4b8f7f0eaa297f1003e9c7576f2e
[INFO] running `Command { std: "docker" "start" "-a" "7c2a3e01d4785ecfc006bcc890da7117d46c4b8f7f0eaa297f1003e9c7576f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c2a3e01d4785ecfc006bcc890da7117d46c4b8f7f0eaa297f1003e9c7576f2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c2a3e01d4785ecfc006bcc890da7117d46c4b8f7f0eaa297f1003e9c7576f2e", kill_on_drop: false }`
[INFO] [stdout] 7c2a3e01d4785ecfc006bcc890da7117d46c4b8f7f0eaa297f1003e9c7576f2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 58ce96c0565b6118e80bef26b13c27adbeef89f988cf4aedae5fff1b569493b6
[INFO] running `Command { std: "docker" "start" "-a" "58ce96c0565b6118e80bef26b13c27adbeef89f988cf4aedae5fff1b569493b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]     Checking log v0.4.22
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling cc v1.1.21
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking arrayvec v0.7.6
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking etherparse v0.16.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]    Compiling tun-tap v0.1.4
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.18
[INFO] [stderr]     Checking tcp-no-reason v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/tcp.rs:39:111
[INFO] [stdout]    |
[INFO] [stdout] 39 |                     etherparse::TcpHeader::new(tcph.destination_port(), tcph.source_port(), unimplemented!(), unimplemented!());
[INFO] [stdout]    |                                                                                             ----------------  ^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |                                                                                             |
[INFO] [stdout]    |                                                                                             any code following this expression is unreachable
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `unimplemented` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tcp.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut buf = [0u8; 1500];
[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: `nic`
[INFO] [stdout]   --> src/tcp.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         nic: &mut tun_tap::Iface,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_nic`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iph`
[INFO] [stdout]   --> src/tcp.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         iph: etherparse::Ipv4HeaderSlice<'a>,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_iph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/tcp.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         data: &'a [u8],
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/tcp.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut buf = [0u8; 1500];
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `syn_ack`
[INFO] [stdout]   --> src/tcp.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 let mut syn_ack =
[INFO] [stdout]    |                     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_syn_ack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Closed` is never constructed
[INFO] [stdout]  --> src/tcp.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum State {
[INFO] [stdout]   |          ----- variant in this enum
[INFO] [stdout] 5 |     Closed,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/tcp.rs:39:111
[INFO] [stdout]    |
[INFO] [stdout] 39 |                     etherparse::TcpHeader::new(tcph.destination_port(), tcph.source_port(), unimplemented!(), unimplemented!());
[INFO] [stdout]    |                                                                                             ----------------  ^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |                                                                                             |
[INFO] [stdout]    |                                                                                             any code following this expression is unreachable
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `unimplemented` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tcp.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut buf = [0u8; 1500];
[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: `nic`
[INFO] [stdout]   --> src/tcp.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         nic: &mut tun_tap::Iface,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_nic`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iph`
[INFO] [stdout]   --> src/tcp.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |         iph: etherparse::Ipv4HeaderSlice<'a>,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_iph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/tcp.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |         data: &'a [u8],
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/tcp.rs:26:13
[INFO] [stdout]    |
[INFO] [stdout] 26 |         let mut buf = [0u8; 1500];
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `syn_ack`
[INFO] [stdout]   --> src/tcp.rs:38:21
[INFO] [stdout]    |
[INFO] [stdout] 38 |                 let mut syn_ack =
[INFO] [stdout]    |                     ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_syn_ack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Closed` is never constructed
[INFO] [stdout]  --> src/tcp.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub enum State {
[INFO] [stdout]   |          ----- variant in this enum
[INFO] [stdout] 5 |     Closed,
[INFO] [stdout]   |     ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.35s
[INFO] running `Command { std: "docker" "inspect" "58ce96c0565b6118e80bef26b13c27adbeef89f988cf4aedae5fff1b569493b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58ce96c0565b6118e80bef26b13c27adbeef89f988cf4aedae5fff1b569493b6", kill_on_drop: false }`
[INFO] [stdout] 58ce96c0565b6118e80bef26b13c27adbeef89f988cf4aedae5fff1b569493b6
