[INFO] cloning repository https://github.com/hayasshi/rust-tcp-book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hayasshi/rust-tcp-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhayasshi%2Frust-tcp-book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhayasshi%2Frust-tcp-book'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d76d73cca8cbb0daaf7c84aae7b2a6d604a79c65 [INFO] checking hayasshi/rust-tcp-book against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhayasshi%2Frust-tcp-book" "/workspace/builds/worker-79/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-79/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hayasshi/rust-tcp-book on toolchain 39e1293fce4b650061e85dda88aa428f726a8444 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hayasshi/rust-tcp-book [INFO] finished tweaking git repo https://github.com/hayasshi/rust-tcp-book [INFO] tweaked toml for git repo https://github.com/hayasshi/rust-tcp-book written to /workspace/builds/worker-79/source/Cargo.toml [INFO] crate git repo https://github.com/hayasshi/rust-tcp-book already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ec5e133a3cae6bc8b2d317a4556e7e14567a61b63ff9c901668c464ac9540a38 [INFO] running `Command { std: "docker" "start" "-a" "ec5e133a3cae6bc8b2d317a4556e7e14567a61b63ff9c901668c464ac9540a38", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ec5e133a3cae6bc8b2d317a4556e7e14567a61b63ff9c901668c464ac9540a38", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec5e133a3cae6bc8b2d317a4556e7e14567a61b63ff9c901668c464ac9540a38", kill_on_drop: false }` [INFO] [stdout] ec5e133a3cae6bc8b2d317a4556e7e14567a61b63ff9c901668c464ac9540a38 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-79/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 6b033302042317c3100371ade19024735b5ef2a489e3c1aa1f3a4e55a29d6cf2 [INFO] running `Command { std: "docker" "start" "-a" "6b033302042317c3100371ade19024735b5ef2a489e3c1aa1f3a4e55a29d6cf2", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.81 [INFO] [stderr] Compiling log v0.4.11 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling rustc-serialize v0.3.24 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling unicode-xid v0.0.3 [INFO] [stderr] Compiling term v0.4.6 [INFO] [stderr] Compiling bitflags v0.5.0 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling regex-syntax v0.6.21 [INFO] [stderr] Compiling getrandom v0.2.0 [INFO] [stderr] Compiling serde v1.0.118 [INFO] [stderr] Checking pnet_base v0.27.2 [INFO] [stderr] Compiling glob v0.2.11 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling pnet v0.27.2 [INFO] [stderr] Checking ppv-lite86 v0.2.10 [INFO] [stderr] Compiling anyhow v1.0.36 [INFO] [stderr] Checking echoserver v0.1.0 (/opt/rustwide/workdir/echoserver) [INFO] [stderr] Compiling thread_local v1.0.1 [INFO] [stderr] Checking pnet_macros_support v0.27.2 [INFO] [stderr] Compiling aho-corasick v0.7.15 [INFO] [stderr] Compiling syntex_pos v0.42.0 [INFO] [stderr] Compiling log v0.3.9 [INFO] [stderr] Compiling regex v1.4.2 [INFO] [stderr] Checking pnet_sys v0.27.2 [INFO] [stderr] Checking nix v0.18.0 [INFO] [stderr] Checking ipnetwork v0.17.0 [INFO] [stderr] Checking rand_core v0.6.0 [INFO] [stderr] Compiling syntex_errors v0.42.0 [INFO] [stderr] Checking rand_chacha v0.3.0 [INFO] [stderr] Checking pnet_datalink v0.27.2 [INFO] [stderr] Compiling syntex_syntax v0.42.0 [INFO] [stderr] Checking rand v0.8.0 [INFO] [stderr] Checking ctrlc v3.1.7 [INFO] [stderr] Compiling syntex v0.42.2 [INFO] [stderr] Compiling pnet_macros v0.27.2 [INFO] [stderr] Compiling pnet_packet v0.27.2 [INFO] [stderr] Checking pnet_transport v0.27.2 [INFO] [stderr] Checking toytcp v0.1.0 (/opt/rustwide/workdir/toytcp) [INFO] [stdout] warning: unused import: `crate::tcpflags` [INFO] [stdout] --> toytcp/src/socket.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::tcpflags; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tcp` [INFO] [stdout] --> toytcp/src/socket.rs:4:47 [INFO] [stdout] | [INFO] [stdout] 4 | use pnet::packet::{ip::IpNextHeaderProtocols, tcp, Packet}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::VecDeque` [INFO] [stdout] --> toytcp/src/socket.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::collections::VecDeque; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::SystemTime` [INFO] [stdout] --> toytcp/src/socket.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::time::SystemTime; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Ipv4`, `Tcp` [INFO] [stdout] --> toytcp/src/socket.rs:11:29 [INFO] [stdout] | [INFO] [stdout] 11 | use IpNextHeaderProtocols::{Ipv4, Tcp}; [INFO] [stdout] | ^^^^ ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::tcpflags` [INFO] [stdout] --> toytcp/src/socket.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use crate::tcpflags; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tcp` [INFO] [stdout] --> toytcp/src/socket.rs:4:47 [INFO] [stdout] | [INFO] [stdout] 4 | use pnet::packet::{ip::IpNextHeaderProtocols, tcp, Packet}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::VecDeque` [INFO] [stdout] --> toytcp/src/socket.rs:7:5 [INFO] [stdout] | [INFO] [stdout] 7 | use std::collections::VecDeque; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::SystemTime` [INFO] [stdout] --> toytcp/src/socket.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | use std::time::SystemTime; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Ipv4`, `Tcp` [INFO] [stdout] --> toytcp/src/socket.rs:11:29 [INFO] [stdout] | [INFO] [stdout] 11 | use IpNextHeaderProtocols::{Ipv4, Tcp}; [INFO] [stdout] | ^^^^ ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ptr::NonNull` [INFO] [stdout] --> toytcp/src/tcp.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use std::ptr::NonNull; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RwLockWriteGuard` [INFO] [stdout] --> toytcp/src/tcp.rs:12:46 [INFO] [stdout] | [INFO] [stdout] 12 | use std::sync::{Arc, Condvar, Mutex, RwLock, RwLockWriteGuard}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Duration`, `SystemTime` [INFO] [stdout] --> toytcp/src/tcp.rs:13:17 [INFO] [stdout] | [INFO] [stdout] 13 | use std::time::{Duration, SystemTime}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `cmp`, `thread` [INFO] [stdout] --> toytcp/src/tcp.rs:14:11 [INFO] [stdout] | [INFO] [stdout] 14 | use std::{cmp, ops::Range, str, thread}; [INFO] [stdout] | ^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::ptr::NonNull` [INFO] [stdout] --> toytcp/src/tcp.rs:11:5 [INFO] [stdout] | [INFO] [stdout] 11 | use std::ptr::NonNull; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RwLockWriteGuard` [INFO] [stdout] --> toytcp/src/tcp.rs:12:46 [INFO] [stdout] | [INFO] [stdout] 12 | use std::sync::{Arc, Condvar, Mutex, RwLock, RwLockWriteGuard}; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Duration`, `SystemTime` [INFO] [stdout] --> toytcp/src/tcp.rs:13:17 [INFO] [stdout] | [INFO] [stdout] 13 | use std::time::{Duration, SystemTime}; [INFO] [stdout] | ^^^^^^^^ ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `cmp`, `thread` [INFO] [stdout] --> toytcp/src/tcp.rs:14:11 [INFO] [stdout] | [INFO] [stdout] 14 | use std::{cmp, ops::Range, str, thread}; [INFO] [stdout] | ^^^ ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sock_id` [INFO] [stdout] --> toytcp/src/tcp.rs:131:17 [INFO] [stdout] | [INFO] [stdout] 131 | let sock_id = socket.get_sock_id(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sock_id` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `sock_id` [INFO] [stdout] --> toytcp/src/tcp.rs:131:17 [INFO] [stdout] | [INFO] [stdout] 131 | let sock_id = socket.get_sock_id(); [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sock_id` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Listen` [INFO] [stdout] --> toytcp/src/socket.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 47 | Listen, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `FinWait1` [INFO] [stdout] --> toytcp/src/socket.rs:51:5 [INFO] [stdout] | [INFO] [stdout] 51 | FinWait1, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `FinWait2` [INFO] [stdout] --> toytcp/src/socket.rs:52:5 [INFO] [stdout] | [INFO] [stdout] 52 | FinWait2, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `TimeWait` [INFO] [stdout] --> toytcp/src/socket.rs:53:5 [INFO] [stdout] | [INFO] [stdout] 53 | TimeWait, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `CloseWait` [INFO] [stdout] --> toytcp/src/socket.rs:54:5 [INFO] [stdout] | [INFO] [stdout] 54 | CloseWait, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `LastAck` [INFO] [stdout] --> toytcp/src/socket.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 55 | LastAck, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `MAX_TRANSMITTION` [INFO] [stdout] --> toytcp/src/tcp.rs:18:1 [INFO] [stdout] | [INFO] [stdout] 18 | const MAX_TRANSMITTION: u8 = 5; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `RETRANSMITTION_TIMEOUT` [INFO] [stdout] --> toytcp/src/tcp.rs:19:1 [INFO] [stdout] | [INFO] [stdout] 19 | const RETRANSMITTION_TIMEOUT: u64 = 3; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `MSS` [INFO] [stdout] --> toytcp/src/tcp.rs:20:1 [INFO] [stdout] | [INFO] [stdout] 20 | const MSS: usize = 1460; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Listen` [INFO] [stdout] --> toytcp/src/socket.rs:47:5 [INFO] [stdout] | [INFO] [stdout] 47 | Listen, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `FinWait1` [INFO] [stdout] --> toytcp/src/socket.rs:51:5 [INFO] [stdout] | [INFO] [stdout] 51 | FinWait1, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `FinWait2` [INFO] [stdout] --> toytcp/src/socket.rs:52:5 [INFO] [stdout] | [INFO] [stdout] 52 | FinWait2, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `TimeWait` [INFO] [stdout] --> toytcp/src/socket.rs:53:5 [INFO] [stdout] | [INFO] [stdout] 53 | TimeWait, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `CloseWait` [INFO] [stdout] --> toytcp/src/socket.rs:54:5 [INFO] [stdout] | [INFO] [stdout] 54 | CloseWait, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `LastAck` [INFO] [stdout] --> toytcp/src/socket.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 55 | LastAck, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 19 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `MAX_TRANSMITTION` [INFO] [stdout] --> toytcp/src/tcp.rs:18:1 [INFO] [stdout] | [INFO] [stdout] 18 | const MAX_TRANSMITTION: u8 = 5; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `RETRANSMITTION_TIMEOUT` [INFO] [stdout] --> toytcp/src/tcp.rs:19:1 [INFO] [stdout] | [INFO] [stdout] 19 | const RETRANSMITTION_TIMEOUT: u64 = 3; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: constant is never used: `MSS` [INFO] [stdout] --> toytcp/src/tcp.rs:20:1 [INFO] [stdout] | [INFO] [stdout] 20 | const MSS: usize = 1460; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 19 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `io`, `str` [INFO] [stdout] --> toytcp/examples/echoclient.rs:2:16 [INFO] [stdout] | [INFO] [stdout] 2 | use std::{env, io, net::Ipv4Addr, str}; [INFO] [stdout] | ^^ ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 59.24s [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "6b033302042317c3100371ade19024735b5ef2a489e3c1aa1f3a4e55a29d6cf2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6b033302042317c3100371ade19024735b5ef2a489e3c1aa1f3a4e55a29d6cf2", kill_on_drop: false }` [INFO] [stdout] 6b033302042317c3100371ade19024735b5ef2a489e3c1aa1f3a4e55a29d6cf2