[INFO] cloning repository https://github.com/xiaochen0517/trust_tcp_ip
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/xiaochen0517/trust_tcp_ip" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaochen0517%2Ftrust_tcp_ip", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaochen0517%2Ftrust_tcp_ip'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4501ef16250c8a4b9099e075da5c6dfa1efac1b2
[INFO] checking xiaochen0517/trust_tcp_ip against master#3350c1eb3fd8fe1bee1ed4c76944d707bd256876 for pr-140558
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fxiaochen0517%2Ftrust_tcp_ip" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/xiaochen0517/trust_tcp_ip on toolchain 3350c1eb3fd8fe1bee1ed4c76944d707bd256876
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3350c1eb3fd8fe1bee1ed4c76944d707bd256876" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/xiaochen0517/trust_tcp_ip
[INFO] finished tweaking git repo https://github.com/xiaochen0517/trust_tcp_ip
[INFO] tweaked toml for git repo https://github.com/xiaochen0517/trust_tcp_ip written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/xiaochen0517/trust_tcp_ip 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" "+3350c1eb3fd8fe1bee1ed4c76944d707bd256876" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded etherparse v0.13.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+3350c1eb3fd8fe1bee1ed4c76944d707bd256876" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92e5079b49df2bc45d131e3c15db98b90be5304409f611d574ff06693bf3c120
[INFO] running `Command { std: "docker" "start" "-a" "92e5079b49df2bc45d131e3c15db98b90be5304409f611d574ff06693bf3c120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92e5079b49df2bc45d131e3c15db98b90be5304409f611d574ff06693bf3c120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92e5079b49df2bc45d131e3c15db98b90be5304409f611d574ff06693bf3c120", kill_on_drop: false }`
[INFO] [stdout] 92e5079b49df2bc45d131e3c15db98b90be5304409f611d574ff06693bf3c120
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+3350c1eb3fd8fe1bee1ed4c76944d707bd256876" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a376fb6393c1dff7462659ea099269e21674dd12134f7cd4eee0f89742ce3f97
[INFO] running `Command { std: "docker" "start" "-a" "a376fb6393c1dff7462659ea099269e21674dd12134f7cd4eee0f89742ce3f97", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking arrayvec v0.7.4
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking etherparse v0.13.0
[INFO] [stderr]    Compiling cc v1.0.82
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[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]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]    Compiling tun-tap v0.1.4
[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 trust_tcp_ip v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/tcp.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 60 |                     unimplemented!(),
[INFO] [stdout]    |                     ---------------- any code following this expression is unreachable
[INFO] [stdout] 61 |                     unimplemented!(),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` 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: unreachable statement
[INFO] [stdout]   --> src/tcp.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 42 | /         match (*self).state {
[INFO] [stdout] 43 | |             State::Closed => {
[INFO] [stdout] 44 | |                 return Err(io::Error::new(
[INFO] [stdout] 45 | |                     io::ErrorKind::Other,
[INFO] [stdout] ...  |
[INFO] [stdout] 81 | |         }
[INFO] [stdout]    | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 82 | /         eprintln!(
[INFO] [stdout] 83 | |             "{}:{} > {}:{}; {} bytes",
[INFO] [stdout] 84 | |             iph.source_addr(),
[INFO] [stdout] 85 | |             tcph.source_port(),
[INFO] [stdout] ...  |
[INFO] [stdout] 88 | |             data.len()
[INFO] [stdout] 89 | |         );
[INFO] [stdout]    | |_________^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `eprintln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/tcp.rs:61:21
[INFO] [stdout]    |
[INFO] [stdout] 60 |                     unimplemented!(),
[INFO] [stdout]    |                     ---------------- any code following this expression is unreachable
[INFO] [stdout] 61 |                     unimplemented!(),
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` 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: unreachable statement
[INFO] [stdout]   --> src/tcp.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 42 | /         match (*self).state {
[INFO] [stdout] 43 | |             State::Closed => {
[INFO] [stdout] 44 | |                 return Err(io::Error::new(
[INFO] [stdout] 45 | |                     io::ErrorKind::Other,
[INFO] [stdout] ...  |
[INFO] [stdout] 81 | |         }
[INFO] [stdout]    | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 82 | /         eprintln!(
[INFO] [stdout] 83 | |             "{}:{} > {}:{}; {} bytes",
[INFO] [stdout] 84 | |             iph.source_addr(),
[INFO] [stdout] 85 | |             tcph.source_port(),
[INFO] [stdout] ...  |
[INFO] [stdout] 88 | |             data.len()
[INFO] [stdout] 89 | |         );
[INFO] [stdout]    | |_________^ unreachable statement
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `eprintln` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/tcp.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let mut buf = [0u8; 1504];
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `syn_ack`
[INFO] [stdout]   --> src/tcp.rs:57:25
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 let mut syn_ack = etherparse::TcpHeader::new(
[INFO] [stdout]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_syn_ack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nic`
[INFO] [stdout]   --> src/tcp.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         nic: &mut Iface,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_nic`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iph`
[INFO] [stdout]   --> src/tcp.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         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:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         data: &'a [u8],
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tcp.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let mut buf = [0u8; 1504];
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/tcp.rs:41:17
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let mut buf = [0u8; 1504];
[INFO] [stdout]    |                 ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `syn_ack`
[INFO] [stdout]   --> src/tcp.rs:57:25
[INFO] [stdout]    |
[INFO] [stdout] 57 |                 let mut syn_ack = etherparse::TcpHeader::new(
[INFO] [stdout]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_syn_ack`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nic`
[INFO] [stdout]   --> src/tcp.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |         nic: &mut Iface,
[INFO] [stdout]    |         ^^^ help: if this is intentional, prefix it with an underscore: `_nic`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iph`
[INFO] [stdout]   --> src/tcp.rs:37:9
[INFO] [stdout]    |
[INFO] [stdout] 37 |         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:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |         data: &'a [u8],
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tcp.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let mut buf = [0u8; 1504];
[INFO] [stdout]    |             ----^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tcp.rs:75:21
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     ip_packet.write(&mut unwriten);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     let _ = ip_packet.write(&mut unwriten);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tcp.rs:76:21
[INFO] [stdout]    |
[INFO] [stdout] 76 |                     syn_ack.write(&mut unwriten);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 76 |                     let _ = syn_ack.write(&mut unwriten);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tcp.rs:75:21
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     ip_packet.write(&mut unwriten);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 75 |                     let _ = ip_packet.write(&mut unwriten);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/tcp.rs:76:21
[INFO] [stdout]    |
[INFO] [stdout] 76 |                     syn_ack.write(&mut unwriten);
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 76 |                     let _ = syn_ack.write(&mut unwriten);
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.97s
[INFO] running `Command { std: "docker" "inspect" "a376fb6393c1dff7462659ea099269e21674dd12134f7cd4eee0f89742ce3f97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a376fb6393c1dff7462659ea099269e21674dd12134f7cd4eee0f89742ce3f97", kill_on_drop: false }`
[INFO] [stdout] a376fb6393c1dff7462659ea099269e21674dd12134f7cd4eee0f89742ce3f97
