[INFO] updating cached repository justinliew/tcp_rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/justinliew/tcp_rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/justinliew/tcp_rust" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/justinliew/tcp_rust"` [INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/justinliew/tcp_rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/justinliew/tcp_rust" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/justinliew/tcp_rust"` [INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/justinliew/tcp_rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c32305b948952348e2605f55ea282faffbea18bc [INFO] sha for GitHub repo justinliew/tcp_rust: c32305b948952348e2605f55ea282faffbea18bc [INFO] validating manifest of justinliew/tcp_rust on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of justinliew/tcp_rust on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing justinliew/tcp_rust [INFO] finished frobbing justinliew/tcp_rust [INFO] frobbed toml for justinliew/tcp_rust written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/justinliew/tcp_rust/Cargo.toml [INFO] started frobbing justinliew/tcp_rust [INFO] finished frobbing justinliew/tcp_rust [INFO] frobbed toml for justinliew/tcp_rust written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/justinliew/tcp_rust/Cargo.toml [INFO] crate justinliew/tcp_rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Updating crates.io index [INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/justinliew/tcp_rust/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking justinliew/tcp_rust against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-3/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/justinliew/tcp_rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 843357724ef6daa9473f5a532fbed5fa498d1d67be3d118d1134daa0202336cf [INFO] running `"docker" "start" "-a" "843357724ef6daa9473f5a532fbed5fa498d1d67be3d118d1134daa0202336cf"` [INFO] [stderr] Compiling tun-tap v0.1.2 [INFO] [stderr] Checking etherparse v0.8.2 [INFO] [stderr] Checking tokio-core v0.1.17 [INFO] [stderr] Checking tcp_rust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: the item `Ord` is imported redundantly [INFO] [stderr] --> src/tcp.rs:139:24 [INFO] [stderr] | [INFO] [stderr] 139 | use std::cmp::{Ord,Ordering}; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:58:17 [INFO] [stderr] | [INFO] [stderr] 58 | Err(e) => { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `nic` [INFO] [stderr] --> src/tcp.rs:155:9 [INFO] [stderr] | [INFO] [stderr] 155 | nic: &mut tun_tap::Iface, [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_nic` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `iph` [INFO] [stderr] --> src/tcp.rs:156:9 [INFO] [stderr] | [INFO] [stderr] 156 | iph: etherparse::Ipv4HeaderSlice<'a>, [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_iph` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:45:43 [INFO] [stderr] | [INFO] [stderr] 45 | 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: variant is never constructed: `Estab` [INFO] [stderr] --> src/tcp.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | Estab, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `up` [INFO] [stderr] --> src/tcp.rs:43:5 [INFO] [stderr] | [INFO] [stderr] 43 | up: bool, // send urgent pointer [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `wl1` [INFO] [stderr] --> src/tcp.rs:44:5 [INFO] [stderr] | [INFO] [stderr] 44 | wl1: u32, // segment sequence number used for last window update [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `wl2` [INFO] [stderr] --> src/tcp.rs:45:5 [INFO] [stderr] | [INFO] [stderr] 45 | wl2: u32, // segment acknowledgement number used for last window update [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `up` [INFO] [stderr] --> src/tcp.rs:66:5 [INFO] [stderr] | [INFO] [stderr] 66 | up: bool, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `irs` [INFO] [stderr] --> src/tcp.rs:67:5 [INFO] [stderr] | [INFO] [stderr] 67 | irs: u32, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/tcp.rs:126:9 [INFO] [stderr] | [INFO] [stderr] 126 | c.ip.set_payload_len(syn_ack.header_len() as usize); [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 `std::result::Result` that must be used [INFO] [stderr] --> src/tcp.rs:130:13 [INFO] [stderr] | [INFO] [stderr] 130 | 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 `std::result::Result` that must be used [INFO] [stderr] --> src/tcp.rs:131:13 [INFO] [stderr] | [INFO] [stderr] 131 | 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: unused `std::result::Result` that must be used [INFO] [stderr] --> src/tcp.rs:134:9 [INFO] [stderr] | [INFO] [stderr] 134 | nic.send(&buf[..unwritten]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: the item `Ord` is imported redundantly [INFO] [stderr] --> src/tcp.rs:139:24 [INFO] [stderr] | [INFO] [stderr] 139 | use std::cmp::{Ord,Ordering}; [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:58:17 [INFO] [stderr] | [INFO] [stderr] 58 | Err(e) => { [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `nic` [INFO] [stderr] --> src/tcp.rs:155:9 [INFO] [stderr] | [INFO] [stderr] 155 | nic: &mut tun_tap::Iface, [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_nic` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `iph` [INFO] [stderr] --> src/tcp.rs:156:9 [INFO] [stderr] | [INFO] [stderr] 156 | iph: etherparse::Ipv4HeaderSlice<'a>, [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_iph` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:45:43 [INFO] [stderr] | [INFO] [stderr] 45 | 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: variant is never constructed: `Estab` [INFO] [stderr] --> src/tcp.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | Estab, [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `up` [INFO] [stderr] --> src/tcp.rs:43:5 [INFO] [stderr] | [INFO] [stderr] 43 | up: bool, // send urgent pointer [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `wl1` [INFO] [stderr] --> src/tcp.rs:44:5 [INFO] [stderr] | [INFO] [stderr] 44 | wl1: u32, // segment sequence number used for last window update [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `wl2` [INFO] [stderr] --> src/tcp.rs:45:5 [INFO] [stderr] | [INFO] [stderr] 45 | wl2: u32, // segment acknowledgement number used for last window update [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `up` [INFO] [stderr] --> src/tcp.rs:66:5 [INFO] [stderr] | [INFO] [stderr] 66 | up: bool, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `irs` [INFO] [stderr] --> src/tcp.rs:67:5 [INFO] [stderr] | [INFO] [stderr] 67 | irs: u32, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/tcp.rs:126:9 [INFO] [stderr] | [INFO] [stderr] 126 | c.ip.set_payload_len(syn_ack.header_len() as usize); [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 `std::result::Result` that must be used [INFO] [stderr] --> src/tcp.rs:130:13 [INFO] [stderr] | [INFO] [stderr] 130 | 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 `std::result::Result` that must be used [INFO] [stderr] --> src/tcp.rs:131:13 [INFO] [stderr] | [INFO] [stderr] 131 | 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: unused `std::result::Result` that must be used [INFO] [stderr] --> src/tcp.rs:134:9 [INFO] [stderr] | [INFO] [stderr] 134 | nic.send(&buf[..unwritten]); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 8.39s [INFO] running `"docker" "inspect" "843357724ef6daa9473f5a532fbed5fa498d1d67be3d118d1134daa0202336cf"` [INFO] running `"docker" "rm" "-f" "843357724ef6daa9473f5a532fbed5fa498d1d67be3d118d1134daa0202336cf"` [INFO] [stdout] 843357724ef6daa9473f5a532fbed5fa498d1d67be3d118d1134daa0202336cf