[INFO] cloning repository https://github.com/tengrommel/tcpimplement
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tengrommel/tcpimplement" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftengrommel%2Ftcpimplement", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftengrommel%2Ftcpimplement'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb9fafcaa8b1b19261614e10b3527e42529cb762
[INFO] testing tengrommel/tcpimplement against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftengrommel%2Ftcpimplement" "/workspace/builds/worker-16/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-16/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tengrommel/tcpimplement on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tengrommel/tcpimplement
[INFO] finished tweaking git repo https://github.com/tengrommel/tcpimplement
[INFO] tweaked toml for git repo https://github.com/tengrommel/tcpimplement written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate git repo https://github.com/tengrommel/tcpimplement already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 94da90d052ed18b4d6a34d78eed726835bd51f4d8285f6931869d99f269387c0
[INFO] running `Command { std: "docker" "start" "-a" "94da90d052ed18b4d6a34d78eed726835bd51f4d8285f6931869d99f269387c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "94da90d052ed18b4d6a34d78eed726835bd51f4d8285f6931869d99f269387c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94da90d052ed18b4d6a34d78eed726835bd51f4d8285f6931869d99f269387c0", kill_on_drop: false }`
[INFO] [stdout] 94da90d052ed18b4d6a34d78eed726835bd51f4d8285f6931869d99f269387c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e7974312363abd0a6460fcc8d9fad23b316063b73dcc286f9d1bd58b305970e
[INFO] running `Command { std: "docker" "start" "-a" "0e7974312363abd0a6460fcc8d9fad23b316063b73dcc286f9d1bd58b305970e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]    Compiling tokio-sync v0.1.8
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling etherparse v0.9.0
[INFO] [stderr]    Compiling tokio-executor v0.1.10
[INFO] [stderr]    Compiling crossbeam-queue v0.2.1
[INFO] [stderr]    Compiling tokio-timer v0.2.13
[INFO] [stderr]    Compiling tokio-current-thread v0.1.7
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling tun-tap v0.1.2
[INFO] [stderr]    Compiling crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling tokio-io v0.1.13
[INFO] [stderr]    Compiling tokio-codec v0.1.2
[INFO] [stderr]    Compiling tokio-fs v0.1.7
[INFO] [stderr]    Compiling tokio-reactor v0.1.12
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling tokio-tcp v0.1.4
[INFO] [stderr]    Compiling tokio-uds v0.2.6
[INFO] [stderr]    Compiling tokio-udp v0.1.6
[INFO] [stderr]    Compiling tokio v0.1.22
[INFO] [stderr]    Compiling tokio-core v0.1.17
[INFO] [stderr]    Compiling tcpimplement v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |             Err(e) => {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/tcp.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         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: `ackn`
[INFO] [stdout]    --> src/tcp.rs:154:13
[INFO] [stdout]     |
[INFO] [stdout] 154 |         let ackn = tcph.acknowledgment_number();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_ackn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nic`
[INFO] [stdout]    --> src/tcp.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         nic: &mut tun_tap::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:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |         iph: etherparse::Ipv4HeaderSlice<'a>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_iph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:44:43
[INFO] [stdout]    |
[INFO] [stdout] 44 | ...                   Entry::Vacant(mut e) => {
[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: field is never read: `up`
[INFO] [stdout]   --> src/tcp.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     up: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `SendSequenceSpace` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tcp.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wl1`
[INFO] [stdout]   --> src/tcp.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     wl1: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `SendSequenceSpace` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tcp.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wl2`
[INFO] [stdout]   --> src/tcp.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     wl2: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `SendSequenceSpace` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tcp.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `up`
[INFO] [stdout]   --> src/tcp.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     up: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `RecvSequenceSpace` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tcp.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `irs`
[INFO] [stdout]   --> src/tcp.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     irs: u32,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `RecvSequenceSpace` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tcp.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Estab`
[INFO] [stdout]   --> src/tcp.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Estab,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tcp.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |         c.ip.set_payload_len(syn_ack.header_len() as usize + 0);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tcp.rs:136:13
[INFO] [stdout]     |
[INFO] [stdout] 136 |             c.ip.write(&mut unwritten);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tcp.rs:137:13
[INFO] [stdout]     |
[INFO] [stdout] 137 |             syn_ack.write(&mut unwritten);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.37s
[INFO] running `Command { std: "docker" "inspect" "0e7974312363abd0a6460fcc8d9fad23b316063b73dcc286f9d1bd58b305970e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e7974312363abd0a6460fcc8d9fad23b316063b73dcc286f9d1bd58b305970e", kill_on_drop: false }`
[INFO] [stdout] 0e7974312363abd0a6460fcc8d9fad23b316063b73dcc286f9d1bd58b305970e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 010528fd39db17b0784b6a9642b6e4144c2b39f87e4286324157a9eb0a11c98d
[INFO] running `Command { std: "docker" "start" "-a" "010528fd39db17b0784b6a9642b6e4144c2b39f87e4286324157a9eb0a11c98d", kill_on_drop: false }`
[INFO] [stderr]    Compiling tcpimplement v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:61:17
[INFO] [stdout]    |
[INFO] [stdout] 61 |             Err(e) => {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/tcp.rs:74:9
[INFO] [stdout]    |
[INFO] [stdout] 74 |         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: `ackn`
[INFO] [stdout]    --> src/tcp.rs:154:13
[INFO] [stdout]     |
[INFO] [stdout] 154 |         let ackn = tcph.acknowledgment_number();
[INFO] [stdout]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_ackn`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `nic`
[INFO] [stdout]    --> src/tcp.rs:147:9
[INFO] [stdout]     |
[INFO] [stdout] 147 |         nic: &mut tun_tap::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:148:9
[INFO] [stdout]     |
[INFO] [stdout] 148 |         iph: etherparse::Ipv4HeaderSlice<'a>,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_iph`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:44:43
[INFO] [stdout]    |
[INFO] [stdout] 44 | ...                   Entry::Vacant(mut e) => {
[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: field is never read: `up`
[INFO] [stdout]   --> src/tcp.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     up: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `SendSequenceSpace` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tcp.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wl1`
[INFO] [stdout]   --> src/tcp.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     wl1: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `SendSequenceSpace` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tcp.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `wl2`
[INFO] [stdout]   --> src/tcp.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     wl2: usize,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `SendSequenceSpace` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tcp.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `up`
[INFO] [stdout]   --> src/tcp.rs:57:5
[INFO] [stdout]    |
[INFO] [stdout] 57 |     up: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `RecvSequenceSpace` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tcp.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `irs`
[INFO] [stdout]   --> src/tcp.rs:59:5
[INFO] [stdout]    |
[INFO] [stdout] 59 |     irs: u32,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: `RecvSequenceSpace` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   --> src/tcp.rs:50:10
[INFO] [stdout]    |
[INFO] [stdout] 50 | #[derive(Debug)]
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Estab`
[INFO] [stdout]   --> src/tcp.rs:65:5
[INFO] [stdout]    |
[INFO] [stdout] 65 |     Estab,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tcp.rs:127:9
[INFO] [stdout]     |
[INFO] [stdout] 127 |         c.ip.set_payload_len(syn_ack.header_len() as usize + 0);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tcp.rs:136:13
[INFO] [stdout]     |
[INFO] [stdout] 136 |             c.ip.write(&mut unwritten);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/tcp.rs:137:13
[INFO] [stdout]     |
[INFO] [stdout] 137 |             syn_ack.write(&mut unwritten);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/tcpimplement-f5fe1bd0d7775e01)
[INFO] running `Command { std: "docker" "inspect" "010528fd39db17b0784b6a9642b6e4144c2b39f87e4286324157a9eb0a11c98d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "010528fd39db17b0784b6a9642b6e4144c2b39f87e4286324157a9eb0a11c98d", kill_on_drop: false }`
[INFO] [stdout] 010528fd39db17b0784b6a9642b6e4144c2b39f87e4286324157a9eb0a11c98d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2f70ddeffd9c06c4a616c2784af74419a31765b8f867aca9747060345493dbf7
[INFO] running `Command { std: "docker" "start" "-a" "2f70ddeffd9c06c4a616c2784af74419a31765b8f867aca9747060345493dbf7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/main.rs:61:17
[INFO] [stderr]    |
[INFO] [stderr] 61 |             Err(e) => {
[INFO] [stderr]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]   --> src/tcp.rs:74:9
[INFO] [stderr]    |
[INFO] [stderr] 74 |         data: &'a [u8],
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ackn`
[INFO] [stderr]    --> src/tcp.rs:154:13
[INFO] [stderr]     |
[INFO] [stderr] 154 |         let ackn = tcph.acknowledgment_number();
[INFO] [stderr]     |             ^^^^ help: if this is intentional, prefix it with an underscore: `_ackn`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `nic`
[INFO] [stderr]    --> src/tcp.rs:147:9
[INFO] [stderr]     |
[INFO] [stderr] 147 |         nic: &mut tun_tap::Iface,
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_nic`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `iph`
[INFO] [stderr]    --> src/tcp.rs:148:9
[INFO] [stderr]     |
[INFO] [stderr] 148 |         iph: etherparse::Ipv4HeaderSlice<'a>,
[INFO] [stderr]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_iph`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:44:43
[INFO] [stderr]    |
[INFO] [stderr] 44 | ...                   Entry::Vacant(mut e) => {
[INFO] [stderr]    |                                     ----^
[INFO] [stderr]    |                                     |
[INFO] [stderr]    |                                     help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `up`
[INFO] [stderr]   --> src/tcp.rs:31:5
[INFO] [stderr]    |
[INFO] [stderr] 31 |     up: bool,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `SendSequenceSpace` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/tcp.rs:22:10
[INFO] [stderr]    |
[INFO] [stderr] 22 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `wl1`
[INFO] [stderr]   --> src/tcp.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     wl1: usize,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `SendSequenceSpace` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/tcp.rs:22:10
[INFO] [stderr]    |
[INFO] [stderr] 22 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `wl2`
[INFO] [stderr]   --> src/tcp.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     wl2: usize,
[INFO] [stderr]    |     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `SendSequenceSpace` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/tcp.rs:22:10
[INFO] [stderr]    |
[INFO] [stderr] 22 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `up`
[INFO] [stderr]   --> src/tcp.rs:57:5
[INFO] [stderr]    |
[INFO] [stderr] 57 |     up: bool,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `RecvSequenceSpace` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/tcp.rs:50:10
[INFO] [stderr]    |
[INFO] [stderr] 50 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `irs`
[INFO] [stderr]   --> src/tcp.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 |     irs: u32,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: `RecvSequenceSpace` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   --> src/tcp.rs:50:10
[INFO] [stderr]    |
[INFO] [stderr] 50 | #[derive(Debug)]
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr]    = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Estab`
[INFO] [stderr]   --> src/tcp.rs:65:5
[INFO] [stderr]    |
[INFO] [stderr] 65 |     Estab,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/tcp.rs:127:9
[INFO] [stderr]     |
[INFO] [stderr] 127 |         c.ip.set_payload_len(syn_ack.header_len() as usize + 0);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/tcp.rs:136:13
[INFO] [stderr]     |
[INFO] [stderr] 136 |             c.ip.write(&mut unwritten);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]    --> src/tcp.rs:137:13
[INFO] [stderr]     |
[INFO] [stderr] 137 |             syn_ack.write(&mut unwritten);
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `tcpimplement` (bin "tcpimplement" test) generated 15 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.07s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/tcpimplement-f5fe1bd0d7775e01)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2f70ddeffd9c06c4a616c2784af74419a31765b8f867aca9747060345493dbf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f70ddeffd9c06c4a616c2784af74419a31765b8f867aca9747060345493dbf7", kill_on_drop: false }`
[INFO] [stdout] 2f70ddeffd9c06c4a616c2784af74419a31765b8f867aca9747060345493dbf7