[INFO] cloning repository https://github.com/SamyshkinKostya/tcpchat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SamyshkinKostya/tcpchat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamyshkinKostya%2Ftcpchat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamyshkinKostya%2Ftcpchat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 594ad3f6dd42d45f16d93fb395fff5743ba857f1
[INFO] checking SamyshkinKostya/tcpchat/594ad3f6dd42d45f16d93fb395fff5743ba857f1 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamyshkinKostya%2Ftcpchat" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SamyshkinKostya/tcpchat on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SamyshkinKostya/tcpchat
[INFO] finished tweaking git repo https://github.com/SamyshkinKostya/tcpchat
[INFO] tweaked toml for git repo https://github.com/SamyshkinKostya/tcpchat written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/SamyshkinKostya/tcpchat 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tun-tap v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 567230bbd65fde743aa053ff1e57eace43634a42fe1d923127f2fa8fea6e40c4
[INFO] running `Command { std: "docker" "start" "-a" "567230bbd65fde743aa053ff1e57eace43634a42fe1d923127f2fa8fea6e40c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "567230bbd65fde743aa053ff1e57eace43634a42fe1d923127f2fa8fea6e40c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "567230bbd65fde743aa053ff1e57eace43634a42fe1d923127f2fa8fea6e40c4", kill_on_drop: false }`
[INFO] [stdout] 567230bbd65fde743aa053ff1e57eace43634a42fe1d923127f2fa8fea6e40c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8c31cb73a1c1f92be5ef5ba89e99fd0ee8eaf7c9500d6f84b5b126c620cbba95
[INFO] running `Command { std: "docker" "start" "-a" "8c31cb73a1c1f92be5ef5ba89e99fd0ee8eaf7c9500d6f84b5b126c620cbba95", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]     Checking log v0.4.19
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.64
[INFO] [stderr]    Compiling unicode-ident v1.0.10
[INFO] [stderr]     Checking lock_api v0.3.4
[INFO] [stderr]    Compiling quote v1.0.29
[INFO] [stderr]    Compiling rustix v0.38.3
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking utf8parse v0.2.1
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]     Checking tokio-executor v0.1.10
[INFO] [stderr]     Checking tokio-sync v0.1.8
[INFO] [stderr]    Compiling tun-tap v0.1.3
[INFO] [stderr]     Checking vte v0.10.1
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking colored v2.0.4
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking strip-ansi-escapes v0.1.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio-uds v0.2.7
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.18
[INFO] [stderr]     Checking chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `to_remove` is never read
[INFO] [stdout]   --> src/client.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Client
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub to_remove: bool,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Cwr`, `Ece`, `Urg`, and `Psh` are never constructed
[INFO] [stdout]   --> src/tcp/tcp.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub enum TcpFlag
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 8  | {
[INFO] [stdout] 9  |     Cwr = 0b10000000,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     Ece = 0b01000000,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 11 |     Urg = 0b00100000,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 12 |     Ack = 0b00010000,
[INFO] [stdout] 13 |     Psh = 0b00001000,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_flag` is never used
[INFO] [stdout]    --> src/tcp/tcp.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 44  | impl<'a> TcpHeader<'a>
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 124 |     pub fn set_flag(&mut self, flag: TcpFlag, value: bool)
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `to_remove` is never read
[INFO] [stdout]   --> src/client.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Client
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 20 |     pub to_remove: bool,
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Cwr`, `Ece`, `Urg`, and `Psh` are never constructed
[INFO] [stdout]   --> src/tcp/tcp.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub enum TcpFlag
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] 8  | {
[INFO] [stdout] 9  |     Cwr = 0b10000000,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     Ece = 0b01000000,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 11 |     Urg = 0b00100000,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 12 |     Ack = 0b00010000,
[INFO] [stdout] 13 |     Psh = 0b00001000,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `set_flag` is never used
[INFO] [stdout]    --> src/tcp/tcp.rs:124:12
[INFO] [stdout]     |
[INFO] [stdout] 44  | impl<'a> TcpHeader<'a>
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 124 |     pub fn set_flag(&mut self, flag: TcpFlag, value: bool)
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.68s
[INFO] running `Command { std: "docker" "inspect" "8c31cb73a1c1f92be5ef5ba89e99fd0ee8eaf7c9500d6f84b5b126c620cbba95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c31cb73a1c1f92be5ef5ba89e99fd0ee8eaf7c9500d6f84b5b126c620cbba95", kill_on_drop: false }`
[INFO] [stdout] 8c31cb73a1c1f92be5ef5ba89e99fd0ee8eaf7c9500d6f84b5b126c620cbba95