[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 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamyshkinKostya%2Ftcpchat" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[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-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/SamyshkinKostya/tcpchat on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded strip-ansi-escapes v0.1.1
[INFO] [stderr]   Downloaded vte v0.10.1
[INFO] [stderr]   Downloaded nix v0.26.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bfc7c84df4011363f96c37a96831f92f553a7780a63eb0d7fec05fc9e998482b
[INFO] running `Command { std: "docker" "start" "-a" "bfc7c84df4011363f96c37a96831f92f553a7780a63eb0d7fec05fc9e998482b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfc7c84df4011363f96c37a96831f92f553a7780a63eb0d7fec05fc9e998482b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfc7c84df4011363f96c37a96831f92f553a7780a63eb0d7fec05fc9e998482b", kill_on_drop: false }`
[INFO] [stdout] bfc7c84df4011363f96c37a96831f92f553a7780a63eb0d7fec05fc9e998482b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2bc6d5236c9e7163a8e1bb29db8307bc6d029ebbec004ae048a3546ee676ab9e
[INFO] running `Command { std: "docker" "start" "-a" "2bc6d5236c9e7163a8e1bb29db8307bc6d029ebbec004ae048a3546ee676ab9e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]     Checking futures v0.1.31
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling rustix v0.38.3
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]     Checking linux-raw-sys v0.4.3
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling parking_lot_core v0.6.3
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling anyhow v1.0.71
[INFO] [stderr]    Compiling vte_generate_state_changes v0.1.1
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking vte v0.10.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]    Compiling tun-tap v0.1.3
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking net2 v0.2.39
[INFO] [stderr]     Checking getrandom v0.2.10
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[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking colored v2.0.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
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[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking tokio-executor v0.1.10
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[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking tokio-current-thread v0.1.7
[INFO] [stderr]     Checking mio-uds v0.6.8
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking tokio-codec v0.1.2
[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-fs v0.1.7
[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)]` (part of `#[warn(unused)]`) 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: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/tcp/ipv4.rs:27:59
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn new(data: &'a [u8]) -> Result<(IPv4Header<'a>, &[u8])>
[INFO] [stdout]    |                       --                             --   ^^^^^ the same lifetime is elided here
[INFO] [stdout]    |                       |                              |
[INFO] [stdout]    |                       the lifetime is named here     the same lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn new(data: &'a [u8]) -> Result<(IPv4Header<'a>, &'a [u8])>
[INFO] [stdout]    |                                                            ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/tcp/tcp.rs:47:58
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn new(data: &'a [u8]) -> Result<(TcpHeader<'a>, &[u8])>
[INFO] [stdout]    |                       --                            --   ^^^^^ the same lifetime is elided here
[INFO] [stdout]    |                       |                             |
[INFO] [stdout]    |                       the lifetime is named here    the same lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn new(data: &'a [u8]) -> Result<(TcpHeader<'a>, &'a [u8])>
[INFO] [stdout]    |                                                           ++
[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)]` (part of `#[warn(unused)]`) 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: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/tcp/ipv4.rs:27:59
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn new(data: &'a [u8]) -> Result<(IPv4Header<'a>, &[u8])>
[INFO] [stdout]    |                       --                             --   ^^^^^ the same lifetime is elided here
[INFO] [stdout]    |                       |                              |
[INFO] [stdout]    |                       the lifetime is named here     the same lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub fn new(data: &'a [u8]) -> Result<(IPv4Header<'a>, &'a [u8])>
[INFO] [stdout]    |                                                            ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/tcp/tcp.rs:47:58
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn new(data: &'a [u8]) -> Result<(TcpHeader<'a>, &[u8])>
[INFO] [stdout]    |                       --                            --   ^^^^^ the same lifetime is elided here
[INFO] [stdout]    |                       |                             |
[INFO] [stdout]    |                       the lifetime is named here    the same lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn new(data: &'a [u8]) -> Result<(TcpHeader<'a>, &'a [u8])>
[INFO] [stdout]    |                                                           ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.18s
[INFO] running `Command { std: "docker" "inspect" "2bc6d5236c9e7163a8e1bb29db8307bc6d029ebbec004ae048a3546ee676ab9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bc6d5236c9e7163a8e1bb29db8307bc6d029ebbec004ae048a3546ee676ab9e", kill_on_drop: false }`
[INFO] [stdout] 2bc6d5236c9e7163a8e1bb29db8307bc6d029ebbec004ae048a3546ee676ab9e
