[INFO] cloning repository https://github.com/tsych0/thunder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tsych0/thunder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsych0%2Fthunder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsych0%2Fthunder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dd8ba8c5cee3badfac1fd321fc85ebf95bdb9c81
[INFO] checking tsych0/thunder against master#8202d110516c6bd87cee375e9a9b774db499015c for pr-149596
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftsych0%2Fthunder" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/tsych0/thunder
[INFO] finished tweaking git repo https://github.com/tsych0/thunder
[INFO] tweaked toml for git repo https://github.com/tsych0/thunder written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/tsych0/thunder on toolchain 8202d110516c6bd87cee375e9a9b774db499015c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8202d110516c6bd87cee375e9a9b774db499015c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/tsych0/thunder 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" "+8202d110516c6bd87cee375e9a9b774db499015c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+8202d110516c6bd87cee375e9a9b774db499015c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "0198e460fa617686e9e8c6f890edf2ecbe99027f03df3181745f3acc7971abd4", kill_on_drop: false }`
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[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/tcp.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 178 | /         match self.state {
[INFO] [stdout] 179 | |             State::Listen => {
[INFO] [stdout] 180 | |                 if !tcph.syn() {
[INFO] [stdout] 181 | |                     return Ok(0); 
[INFO] [stdout] ...   |
[INFO] [stdout] 206 | |             _ => {return Ok(0)}
[INFO] [stdout] 207 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 208 |           
[INFO] [stdout] 209 | /         eprintln!(
[INFO] [stdout] 210 | |             "{}:{} -> {}:{} {}b of tcp",
[INFO] [stdout] 211 | |             iph.source_addr(),
[INFO] [stdout] 212 | |             tcph.source_port(),
[INFO] [stdout] ...   |
[INFO] [stdout] 215 | |             data.len()
[INFO] [stdout] 216 | |         );
[INFO] [stdout]     | |_________^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[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/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     loop {
[INFO] [stdout] 20 | |         let n_bytes = nic.recv(&mut buf)?;
[INFO] [stdout] 21 | |         let proto = u16::from_be_bytes(buf[2..5].try_into().unwrap());
[INFO] [stdout] 22 | |         if proto != 0x0800 {
[INFO] [stdout] ...  |
[INFO] [stdout] 52 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 53 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tcp.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |                 let mut ip = Ipv4Header::new(
[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: `data`
[INFO] [stdout]    --> src/tcp.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |         data: &[u8],
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_bytes`
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let n_bytes = nic.recv(&mut buf)?;
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     Err(e) => {}
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |             Err(e) => {}
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/tcp.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | enum State {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 62 |     SynSent,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     SynReceived,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     Established,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     FinWait1,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     FinWait2,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     CloseWait,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     Closing,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 88 |     LastAck,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92 |     TimeWait,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 93 |     /// represents no connection state at all.
[INFO] [stdout] 94 |     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: struct `SendSequence` is never constructed
[INFO] [stdout]    --> src/tcp.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | struct SendSequence {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RecvSequence` is never constructed
[INFO] [stdout]    --> src/tcp.rs:145:8
[INFO] [stdout]     |
[INFO] [stdout] 145 | struct RecvSequence {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CurrentSegment` is never constructed
[INFO] [stdout]    --> src/tcp.rs:156:8
[INFO] [stdout]     |
[INFO] [stdout] 156 | struct CurrentSegment {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable statement
[INFO] [stdout]    --> src/tcp.rs:209:9
[INFO] [stdout]     |
[INFO] [stdout] 178 | /         match self.state {
[INFO] [stdout] 179 | |             State::Listen => {
[INFO] [stdout] 180 | |                 if !tcph.syn() {
[INFO] [stdout] 181 | |                     return Ok(0); 
[INFO] [stdout] ...   |
[INFO] [stdout] 206 | |             _ => {return Ok(0)}
[INFO] [stdout] 207 | |         }
[INFO] [stdout]     | |_________- any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 208 |           
[INFO] [stdout] 209 | /         eprintln!(
[INFO] [stdout] 210 | |             "{}:{} -> {}:{} {}b of tcp",
[INFO] [stdout] 211 | |             iph.source_addr(),
[INFO] [stdout] 212 | |             tcph.source_port(),
[INFO] [stdout] ...   |
[INFO] [stdout] 215 | |             data.len()
[INFO] [stdout] 216 | |         );
[INFO] [stdout]     | |_________^ unreachable statement
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[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/main.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | /     loop {
[INFO] [stdout] 20 | |         let n_bytes = nic.recv(&mut buf)?;
[INFO] [stdout] 21 | |         let proto = u16::from_be_bytes(buf[2..5].try_into().unwrap());
[INFO] [stdout] 22 | |         if proto != 0x0800 {
[INFO] [stdout] ...  |
[INFO] [stdout] 52 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 53 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/tcp.rs:190:21
[INFO] [stdout]     |
[INFO] [stdout] 190 |                 let mut ip = Ipv4Header::new(
[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: `data`
[INFO] [stdout]    --> src/tcp.rs:175:9
[INFO] [stdout]     |
[INFO] [stdout] 175 |         data: &[u8],
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n_bytes`
[INFO] [stdout]   --> src/main.rs:20:13
[INFO] [stdout]    |
[INFO] [stdout] 20 |         let n_bytes = nic.recv(&mut buf)?;
[INFO] [stdout]    |             ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_n_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:47:25
[INFO] [stdout]    |
[INFO] [stdout] 47 |                     Err(e) => {}
[INFO] [stdout]    |                         ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 |             Err(e) => {}
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/tcp.rs:62:5
[INFO] [stdout]    |
[INFO] [stdout] 56 | enum State {
[INFO] [stdout]    |      ----- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 62 |     SynSent,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 66 |     SynReceived,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 70 |     Established,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 74 |     FinWait1,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 77 |     FinWait2,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     CloseWait,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 83 |     Closing,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 88 |     LastAck,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 92 |     TimeWait,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 93 |     /// represents no connection state at all.
[INFO] [stdout] 94 |     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: struct `SendSequence` is never constructed
[INFO] [stdout]    --> src/tcp.rs:114:8
[INFO] [stdout]     |
[INFO] [stdout] 114 | struct SendSequence {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `RecvSequence` is never constructed
[INFO] [stdout]    --> src/tcp.rs:145:8
[INFO] [stdout]     |
[INFO] [stdout] 145 | struct RecvSequence {
[INFO] [stdout]     |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `CurrentSegment` is never constructed
[INFO] [stdout]    --> src/tcp.rs:156:8
[INFO] [stdout]     |
[INFO] [stdout] 156 | struct CurrentSegment {}
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.97s
[INFO] running `Command { std: "docker" "inspect" "0f7e713ed71ed459a5c6158cbdcfb3e25d32a8b1fd6ef2be12dfb5c43e40a6ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f7e713ed71ed459a5c6158cbdcfb3e25d32a8b1fd6ef2be12dfb5c43e40a6ba", kill_on_drop: false }`
[INFO] [stdout] 0f7e713ed71ed459a5c6158cbdcfb3e25d32a8b1fd6ef2be12dfb5c43e40a6ba
