[INFO] cloning repository https://github.com/fffclaypool/toytcp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fffclaypool/toytcp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffffclaypool%2Ftoytcp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffffclaypool%2Ftoytcp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6fbe87f80fd726ebb715c2320ee2afdd64fc22bc
[INFO] checking fffclaypool/toytcp against try#44f3504e96c944ae54fc72b5f5008f53f7eda001 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffffclaypool%2Ftoytcp" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fffclaypool/toytcp on toolchain 44f3504e96c944ae54fc72b5f5008f53f7eda001
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fffclaypool/toytcp
[INFO] finished tweaking git repo https://github.com/fffclaypool/toytcp
[INFO] tweaked toml for git repo https://github.com/fffclaypool/toytcp written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/fffclaypool/toytcp 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" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: devdependencies
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/e514745e742ceeffec14905010305941dd64dabc8e3a1231b7357c4195e16f93-init/work: no space left on device
[INFO] checking fffclaypool/toytcp against try#44f3504e96c944ae54fc72b5f5008f53f7eda001 for pr-136776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffffclaypool%2Ftoytcp" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fffclaypool/toytcp on toolchain 44f3504e96c944ae54fc72b5f5008f53f7eda001
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fffclaypool/toytcp
[INFO] finished tweaking git repo https://github.com/fffclaypool/toytcp
[INFO] tweaked toml for git repo https://github.com/fffclaypool/toytcp written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/fffclaypool/toytcp 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" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: devdependencies
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 85f113076e1b0ee1e1c9863dc512ac98cde52cf8bfe3d23378a7e26dc1f067f0
[INFO] running `Command { std: "docker" "start" "-a" "85f113076e1b0ee1e1c9863dc512ac98cde52cf8bfe3d23378a7e26dc1f067f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "85f113076e1b0ee1e1c9863dc512ac98cde52cf8bfe3d23378a7e26dc1f067f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85f113076e1b0ee1e1c9863dc512ac98cde52cf8bfe3d23378a7e26dc1f067f0", kill_on_drop: false }`
[INFO] [stdout] 85f113076e1b0ee1e1c9863dc512ac98cde52cf8bfe3d23378a7e26dc1f067f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+44f3504e96c944ae54fc72b5f5008f53f7eda001" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5499edad377dacfca4c2e1f4ad052e7d48eb406e0b97d9b596f364ae72ac330f
[INFO] running `Command { std: "docker" "start" "-a" "5499edad377dacfca4c2e1f4ad052e7d48eb406e0b97d9b596f364ae72ac330f", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: devdependencies
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]     Checking no-std-net v0.6.0
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling pnet v0.34.0
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking pnet_base v0.34.0
[INFO] [stderr]     Checking pnet_macros_support v0.34.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking pnet_sys v0.34.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling regex-automata v0.4.3
[INFO] [stderr]     Checking ipnetwork v0.20.0
[INFO] [stderr]     Checking pnet_datalink v0.34.0
[INFO] [stderr]    Compiling regex v1.10.2
[INFO] [stderr]    Compiling pnet_macros v0.34.0
[INFO] [stderr]     Checking pnet_packet v0.34.0
[INFO] [stderr]     Checking pnet_transport v0.34.0
[INFO] [stderr]     Checking toytcp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::tcpflags`
[INFO] [stdout]  --> 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: `std::collections::VecDeque`
[INFO] [stdout]  --> 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]   --> src/socket.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::time::SystemTime;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RwLockWriteGuard`
[INFO] [stdout]   --> src/tcp.rs:11:46
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::sync::{Arc, Condvar, Mutex, RwLock, RwLockWriteGuard};
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration` and `SystemTime`
[INFO] [stdout]   --> src/tcp.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::time::{Duration, SystemTime};
[INFO] [stdout]    |                 ^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cmp` and `thread`
[INFO] [stdout]   --> src/tcp.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::{cmp, ops::Range, str, thread};
[INFO] [stdout]    |           ^^^                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tcpflags`
[INFO] [stdout]  --> 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: `std::collections::VecDeque`
[INFO] [stdout]  --> 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]   --> src/socket.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::time::SystemTime;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RwLockWriteGuard`
[INFO] [stdout]   --> src/tcp.rs:11:46
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::sync::{Arc, Condvar, Mutex, RwLock, RwLockWriteGuard};
[INFO] [stdout]    |                                              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration` and `SystemTime`
[INFO] [stdout]   --> src/tcp.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::time::{Duration, SystemTime};
[INFO] [stdout]    |                 ^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cmp` and `thread`
[INFO] [stdout]   --> src/tcp.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::{cmp, ops::Range, str, thread};
[INFO] [stdout]    |           ^^^                   ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tail` is never read
[INFO] [stdout]    --> src/socket.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub struct RecvParam {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub tail: u32,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RecvParam` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Listen`, `FinWait1`, `FinWait2`, `TimeWait`, `CloseWait`, and `LastAck` are never constructed
[INFO] [stdout]    --> src/socket.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 134 | pub enum TcpStatus {
[INFO] [stdout]     |          --------- variants in this enum
[INFO] [stdout] 135 |     Listen,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 139 |     FinWait1,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 140 |     FinWait2,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 141 |     TimeWait,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 142 |     CloseWait,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 143 |     LastAck,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TcpStatus` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_TRANSMITTION` is never used
[INFO] [stdout]   --> src/tcp.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const MAX_TRANSMITTION: u8 = 5;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RETRANSMITTION_TIMEOUT` is never used
[INFO] [stdout]   --> src/tcp.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const RETRANSMITTION_TIMEOUT: u64 = 3;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MSS` is never used
[INFO] [stdout]   --> src/tcp.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const MSS: usize = 1460;
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `tail` is never read
[INFO] [stdout]    --> src/socket.rs:130:9
[INFO] [stdout]     |
[INFO] [stdout] 126 | pub struct RecvParam {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 130 |     pub tail: u32,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `RecvParam` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Listen`, `FinWait1`, `FinWait2`, `TimeWait`, `CloseWait`, and `LastAck` are never constructed
[INFO] [stdout]    --> src/socket.rs:135:5
[INFO] [stdout]     |
[INFO] [stdout] 134 | pub enum TcpStatus {
[INFO] [stdout]     |          --------- variants in this enum
[INFO] [stdout] 135 |     Listen,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 139 |     FinWait1,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 140 |     FinWait2,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 141 |     TimeWait,
[INFO] [stdout]     |     ^^^^^^^^
[INFO] [stdout] 142 |     CloseWait,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] 143 |     LastAck,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TcpStatus` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_TRANSMITTION` is never used
[INFO] [stdout]   --> src/tcp.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const MAX_TRANSMITTION: u8 = 5;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RETRANSMITTION_TIMEOUT` is never used
[INFO] [stdout]   --> src/tcp.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const RETRANSMITTION_TIMEOUT: u64 = 3;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MSS` is never used
[INFO] [stdout]   --> src/tcp.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const MSS: usize = 1460;
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `io` and `str`
[INFO] [stdout]  --> 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` profile [unoptimized + debuginfo] target(s) in 14.27s
[INFO] running `Command { std: "docker" "inspect" "5499edad377dacfca4c2e1f4ad052e7d48eb406e0b97d9b596f364ae72ac330f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5499edad377dacfca4c2e1f4ad052e7d48eb406e0b97d9b596f364ae72ac330f", kill_on_drop: false }`
[INFO] [stdout] 5499edad377dacfca4c2e1f4ad052e7d48eb406e0b97d9b596f364ae72ac330f
