[INFO] updating cached repository https://github.com/jonhoo/rust-tcp [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] d19d03ebdc754c927056e8a59b8f6add9686e284 [INFO] checking jonhoo/rust-tcp against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjonhoo%2Frust-tcp" "/workspace/builds/worker-7/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jonhoo/rust-tcp on toolchain 45d050cde277b22a755847338f2acc2c7b834141 [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/jonhoo/rust-tcp [INFO] finished tweaking git repo https://github.com/jonhoo/rust-tcp [INFO] tweaked toml for git repo https://github.com/jonhoo/rust-tcp written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/jonhoo/rust-tcp already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 7900dc529c9b30248b4d2711971f886c34835cb93941fa810fa75c0853ead080 [INFO] running `"docker" "start" "-a" "7900dc529c9b30248b4d2711971f886c34835cb93941fa810fa75c0853ead080"` [INFO] [stderr] Compiling libc v0.2.49 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling cc v1.0.29 [INFO] [stderr] Checking scoped-tls v0.1.2 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking rand_jitter v0.1.3 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking tokio-sync v0.1.2 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking tokio-executor v0.1.6 [INFO] [stderr] Checking crossbeam-channel v0.3.8 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Checking crossbeam-epoch v0.7.1 [INFO] [stderr] Checking tokio-current-thread v0.1.4 [INFO] [stderr] Checking tokio-timer v0.2.10 [INFO] [stderr] Checking rand_os v0.1.2 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking num_cpus v1.10.0 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking nix v0.13.0 [INFO] [stderr] Checking etherparse v0.8.0 [INFO] [stderr] Checking bytes v0.4.11 [INFO] [stderr] Checking crossbeam-deque v0.6.3 [INFO] [stderr] Checking mio v0.6.16 [INFO] [stderr] Checking tokio-io v0.1.11 [INFO] [stderr] Compiling tun-tap v0.1.2 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking tokio-codec v0.1.1 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking tokio-reactor v0.1.8 [INFO] [stderr] Checking crossbeam v0.6.0 [INFO] [stderr] Checking tokio-threadpool v0.1.11 [INFO] [stderr] Checking tokio-uds v0.2.5 [INFO] [stderr] Checking tokio-tcp v0.1.3 [INFO] [stderr] Checking tokio-udp v0.1.3 [INFO] [stderr] Checking tokio-fs v0.1.5 [INFO] [stderr] Checking tokio v0.1.15 [INFO] [stderr] Checking tokio-core v0.1.17 [INFO] [stderr] Checking trust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/lib.rs:157:17 [INFO] [stderr] | [INFO] [stderr] 157 | 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: `quad` [INFO] [stderr] --> src/lib.rs:217:13 [INFO] [stderr] | [INFO] [stderr] 217 | for quad in pending { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_quad` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cm` [INFO] [stderr] --> src/lib.rs:252:13 [INFO] [stderr] | [INFO] [stderr] 252 | let cm = self.h.manager.lock().unwrap(); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_cm` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `how` [INFO] [stderr] --> src/lib.rs:338:28 [INFO] [stderr] | [INFO] [stderr] 338 | pub fn shutdown(&self, how: std::net::Shutdown) -> io::Result<()> { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_how` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `buf` [INFO] [stderr] --> src/tcp.rs:132:13 [INFO] [stderr] | [INFO] [stderr] 132 | let buf = [0u8; 1500]; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_buf` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `data` [INFO] [stderr] --> src/tcp.rs:130:9 [INFO] [stderr] | [INFO] [stderr] 130 | data: &'a [u8], [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `iph` [INFO] [stderr] --> src/tcp.rs:377:9 [INFO] [stderr] | [INFO] [stderr] 377 | 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/tcp.rs:469:25 [INFO] [stderr] | [INFO] [stderr] 469 | let mut srtt = &mut self.timers.srtt; [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: method is never used: `is_synchronized` [INFO] [stderr] --> src/tcp.rs:23:5 [INFO] [stderr] | [INFO] [stderr] 23 | fn is_synchronized(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `up` [INFO] [stderr] --> src/tcp.rs:93:5 [INFO] [stderr] | [INFO] [stderr] 93 | up: bool, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `wl1` [INFO] [stderr] --> src/tcp.rs:95:5 [INFO] [stderr] | [INFO] [stderr] 95 | wl1: usize, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `wl2` [INFO] [stderr] --> src/tcp.rs:97:5 [INFO] [stderr] | [INFO] [stderr] 97 | wl2: usize, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `up` [INFO] [stderr] --> src/tcp.rs:120:5 [INFO] [stderr] | [INFO] [stderr] 120 | up: bool, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `send_rst` [INFO] [stderr] --> src/tcp.rs:294:5 [INFO] [stderr] | [INFO] [stderr] 294 | fn send_rst(&mut self, nic: &mut tun_tap::Iface) -> io::Result<()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the feature `duration_float` has been stable since 1.38.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/lib.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(duration_float)] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/tcp.rs:235:9 [INFO] [stderr] | [INFO] [stderr] 235 | / self.ip [INFO] [stderr] 236 | | .set_payload_len(size - self.ip.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:243:9 [INFO] [stderr] | [INFO] [stderr] 243 | self.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:274:9 [INFO] [stderr] | [INFO] [stderr] 274 | self.tcp.write(&mut tcp_header_buf); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/lib.rs:157:17 [INFO] [stderr] | [INFO] [stderr] 157 | 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: `quad` [INFO] [stderr] --> src/lib.rs:217:13 [INFO] [stderr] | [INFO] [stderr] 217 | for quad in pending { [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_quad` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `cm` [INFO] [stderr] --> src/lib.rs:252:13 [INFO] [stderr] | [INFO] [stderr] 252 | let cm = self.h.manager.lock().unwrap(); [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_cm` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `how` [INFO] [stderr] --> src/lib.rs:338:28 [INFO] [stderr] | [INFO] [stderr] 338 | pub fn shutdown(&self, how: std::net::Shutdown) -> io::Result<()> { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_how` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `buf` [INFO] [stderr] --> src/tcp.rs:132:13 [INFO] [stderr] | [INFO] [stderr] 132 | let buf = [0u8; 1500]; [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_buf` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `data` [INFO] [stderr] --> src/tcp.rs:130:9 [INFO] [stderr] | [INFO] [stderr] 130 | data: &'a [u8], [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_data` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `iph` [INFO] [stderr] --> src/tcp.rs:377:9 [INFO] [stderr] | [INFO] [stderr] 377 | 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/tcp.rs:469:25 [INFO] [stderr] | [INFO] [stderr] 469 | let mut srtt = &mut self.timers.srtt; [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: 18 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: method is never used: `is_synchronized` [INFO] [stderr] --> src/tcp.rs:23:5 [INFO] [stderr] | [INFO] [stderr] 23 | fn is_synchronized(&self) -> bool { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: field is never read: `up` [INFO] [stderr] --> src/tcp.rs:93:5 [INFO] [stderr] | [INFO] [stderr] 93 | up: bool, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `wl1` [INFO] [stderr] --> src/tcp.rs:95:5 [INFO] [stderr] | [INFO] [stderr] 95 | wl1: usize, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `wl2` [INFO] [stderr] --> src/tcp.rs:97:5 [INFO] [stderr] | [INFO] [stderr] 97 | wl2: usize, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `up` [INFO] [stderr] --> src/tcp.rs:120:5 [INFO] [stderr] | [INFO] [stderr] 120 | up: bool, [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: method is never used: `send_rst` [INFO] [stderr] --> src/tcp.rs:294:5 [INFO] [stderr] | [INFO] [stderr] 294 | fn send_rst(&mut self, nic: &mut tun_tap::Iface) -> io::Result<()> { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: the feature `duration_float` has been stable since 1.38.0 and no longer requires an attribute to enable [INFO] [stderr] --> src/lib.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(duration_float)] [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(stable_features)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/tcp.rs:235:9 [INFO] [stderr] | [INFO] [stderr] 235 | / self.ip [INFO] [stderr] 236 | | .set_payload_len(size - self.ip.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:243:9 [INFO] [stderr] | [INFO] [stderr] 243 | self.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:274:9 [INFO] [stderr] | [INFO] [stderr] 274 | self.tcp.write(&mut tcp_header_buf); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 18 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 31.82s [INFO] running `"docker" "inspect" "7900dc529c9b30248b4d2711971f886c34835cb93941fa810fa75c0853ead080"` [INFO] running `"docker" "rm" "-f" "7900dc529c9b30248b4d2711971f886c34835cb93941fa810fa75c0853ead080"` [INFO] [stdout] 7900dc529c9b30248b4d2711971f886c34835cb93941fa810fa75c0853ead080