[INFO] cloning repository https://github.com/namelesslogger/chat_box
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/namelesslogger/chat_box" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnamelesslogger%2Fchat_box", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnamelesslogger%2Fchat_box'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b42899e358728dc9b06c9cb63aa1fcd019f3753b
[INFO] testing namelesslogger/chat_box against master#61223975d46f794466efa832bc7562b9707ecc46+rustflags=-Copt-level=3 for pr-121282
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnamelesslogger%2Fchat_box" "/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/namelesslogger/chat_box on toolchain 61223975d46f794466efa832bc7562b9707ecc46
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/namelesslogger/chat_box
[INFO] finished tweaking git repo https://github.com/namelesslogger/chat_box
[INFO] tweaked toml for git repo https://github.com/namelesslogger/chat_box written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/namelesslogger/chat_box 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" "+61223975d46f794466efa832bc7562b9707ecc46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xsalsa20poly1305 v0.6.0
[INFO] [stderr]   Downloaded chacha20 v0.6.0
[INFO] [stderr]   Downloaded chacha20poly1305 v0.7.1
[INFO] [stderr]   Downloaded crypto_box v0.5.0
[INFO] [stderr]   Downloaded whoami v0.7.0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c850bef1e0fa6bcb48da94d524d3eff547d99c961c375075019e807579cb49eb
[INFO] running `Command { std: "docker" "start" "-a" "c850bef1e0fa6bcb48da94d524d3eff547d99c961c375075019e807579cb49eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c850bef1e0fa6bcb48da94d524d3eff547d99c961c375075019e807579cb49eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c850bef1e0fa6bcb48da94d524d3eff547d99c961c375075019e807579cb49eb", kill_on_drop: false }`
[INFO] [stdout] c850bef1e0fa6bcb48da94d524d3eff547d99c961c375075019e807579cb49eb
[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 -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b974dd1439fb1ed8d24a7cbc6ecd9c4b84eaf04615b6869eb94d5fac98efa337
[INFO] running `Command { std: "docker" "start" "-a" "b974dd1439fb1ed8d24a7cbc6ecd9c4b84eaf04615b6869eb94d5fac98efa337", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling subtle v2.3.0
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling zmq v0.9.2
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling unicode-segmentation v1.7.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling whoami v0.7.0
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling tui v0.13.0
[INFO] [stderr]    Compiling zmq-sys v0.11.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling cipher v0.2.5
[INFO] [stderr]    Compiling universal-hash v0.4.0
[INFO] [stderr]    Compiling aead v0.3.2
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling poly1305 v0.6.1
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling zeroize v1.1.1
[INFO] [stderr]    Compiling salsa20 v0.7.2
[INFO] [stderr]    Compiling curve25519-dalek v3.0.0
[INFO] [stderr]    Compiling chacha20 v0.6.0
[INFO] [stderr]    Compiling xsalsa20poly1305 v0.6.0
[INFO] [stderr]    Compiling chacha20poly1305 v0.7.1
[INFO] [stderr]    Compiling x25519-dalek v1.1.0
[INFO] [stderr]    Compiling crypto_box v0.5.0
[INFO] [stderr]    Compiling chat_box v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `hex` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use hex;
[INFO] [stdout]   |     ^^^ the item `hex` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::HashMap`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     collections::HashMap,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]   --> src/main.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{thread_rng, Rng};
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `event::Key`, `input::MouseTerminal`, `raw::IntoRawMode`, `screen::AlternateScreen`
[INFO] [stdout]   --> src/main.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | use termion::{event::Key, input::MouseTerminal, raw::IntoRawMode, screen::AlternateScreen};
[INFO] [stdout]    |               ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Block`, `Borders`, `Color`, `Constraint`, `Direction`, `Layout`, `ListItem`, `List`, `Modifier`, `Paragraph`, `Span`, `Spans`, `Style`, `Terminal`, `Text`, `backend::TermionBackend`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     backend::TermionBackend,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     layout::{Constraint, Direction, Layout},
[INFO] [stdout]    |              ^^^^^^^^^^  ^^^^^^^^^  ^^^^^^
[INFO] [stdout] 16 |     style::{Color, Modifier, Style},
[INFO] [stdout]    |             ^^^^^  ^^^^^^^^  ^^^^^
[INFO] [stdout] 17 |     text::{Span, Spans, Text},
[INFO] [stdout]    |            ^^^^  ^^^^^  ^^^^
[INFO] [stdout] 18 |     widgets::{Block, Borders, List, ListItem, Paragraph},
[INFO] [stdout]    |               ^^^^^  ^^^^^^^  ^^^^  ^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 19 |     Terminal,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> src/main.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |             let message = match self.client_message.try_recv() {
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `request`
[INFO] [stdout]   --> src/main.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let request = match rx.try_recv() {
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.88s
[INFO] running `Command { std: "docker" "inspect" "b974dd1439fb1ed8d24a7cbc6ecd9c4b84eaf04615b6869eb94d5fac98efa337", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b974dd1439fb1ed8d24a7cbc6ecd9c4b84eaf04615b6869eb94d5fac98efa337", kill_on_drop: false }`
[INFO] [stdout] b974dd1439fb1ed8d24a7cbc6ecd9c4b84eaf04615b6869eb94d5fac98efa337
[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 -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a2f1b5640fca7a1c22c5f4577ac3a23b15082adef0a389e4c07dec976c243db
[INFO] running `Command { std: "docker" "start" "-a" "0a2f1b5640fca7a1c22c5f4577ac3a23b15082adef0a389e4c07dec976c243db", kill_on_drop: false }`
[INFO] [stderr]    Compiling chat_box v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `hex` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use hex;
[INFO] [stdout]   |     ^^^ the item `hex` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::HashMap`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     collections::HashMap,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]   --> src/main.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{thread_rng, Rng};
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `event::Key`, `input::MouseTerminal`, `raw::IntoRawMode`, `screen::AlternateScreen`
[INFO] [stdout]   --> src/main.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | use termion::{event::Key, input::MouseTerminal, raw::IntoRawMode, screen::AlternateScreen};
[INFO] [stdout]    |               ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Block`, `Borders`, `Color`, `Constraint`, `Direction`, `Layout`, `ListItem`, `List`, `Modifier`, `Paragraph`, `Span`, `Spans`, `Style`, `Terminal`, `Text`, `backend::TermionBackend`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     backend::TermionBackend,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     layout::{Constraint, Direction, Layout},
[INFO] [stdout]    |              ^^^^^^^^^^  ^^^^^^^^^  ^^^^^^
[INFO] [stdout] 16 |     style::{Color, Modifier, Style},
[INFO] [stdout]    |             ^^^^^  ^^^^^^^^  ^^^^^
[INFO] [stdout] 17 |     text::{Span, Spans, Text},
[INFO] [stdout]    |            ^^^^  ^^^^^  ^^^^
[INFO] [stdout] 18 |     widgets::{Block, Borders, List, ListItem, Paragraph},
[INFO] [stdout]    |               ^^^^^  ^^^^^^^  ^^^^  ^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 19 |     Terminal,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> src/main.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |             let message = match self.client_message.try_recv() {
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `request`
[INFO] [stdout]   --> src/main.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let request = match rx.try_recv() {
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "0a2f1b5640fca7a1c22c5f4577ac3a23b15082adef0a389e4c07dec976c243db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a2f1b5640fca7a1c22c5f4577ac3a23b15082adef0a389e4c07dec976c243db", kill_on_drop: false }`
[INFO] [stdout] 0a2f1b5640fca7a1c22c5f4577ac3a23b15082adef0a389e4c07dec976c243db
[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 -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 11abdb479d5f272f367f8781daa39059f191cb2f99d2ff4ac28b6a110c9a6252
[INFO] running `Command { std: "docker" "start" "-a" "11abdb479d5f272f367f8781daa39059f191cb2f99d2ff4ac28b6a110c9a6252", kill_on_drop: false }`
[INFO] [stderr] warning: the item `hex` is imported redundantly
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use hex;
[INFO] [stderr]   |     ^^^ the item `hex` is already defined here
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `collections::HashMap`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     collections::HashMap,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[INFO] [stderr]   --> src/main.rs:11:24
[INFO] [stderr]    |
[INFO] [stderr] 11 | use rand::{thread_rng, Rng};
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `event::Key`, `input::MouseTerminal`, `raw::IntoRawMode`, `screen::AlternateScreen`
[INFO] [stderr]   --> src/main.rs:12:15
[INFO] [stderr]    |
[INFO] [stderr] 12 | use termion::{event::Key, input::MouseTerminal, raw::IntoRawMode, screen::AlternateScreen};
[INFO] [stderr]    |               ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Block`, `Borders`, `Color`, `Constraint`, `Direction`, `Layout`, `ListItem`, `List`, `Modifier`, `Paragraph`, `Span`, `Spans`, `Style`, `Terminal`, `Text`, `backend::TermionBackend`
[INFO] [stderr]   --> src/main.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     backend::TermionBackend,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 15 |     layout::{Constraint, Direction, Layout},
[INFO] [stderr]    |              ^^^^^^^^^^  ^^^^^^^^^  ^^^^^^
[INFO] [stderr] 16 |     style::{Color, Modifier, Style},
[INFO] [stderr]    |             ^^^^^  ^^^^^^^^  ^^^^^
[INFO] [stderr] 17 |     text::{Span, Spans, Text},
[INFO] [stderr]    |            ^^^^  ^^^^^  ^^^^
[INFO] [stderr] 18 |     widgets::{Block, Borders, List, ListItem, Paragraph},
[INFO] [stderr]    |               ^^^^^  ^^^^^^^  ^^^^  ^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 19 |     Terminal,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `message`
[INFO] [stderr]   --> src/main.rs:74:17
[INFO] [stderr]    |
[INFO] [stderr] 74 |             let message = match self.client_message.try_recv() {
[INFO] [stderr]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `request`
[INFO] [stderr]   --> src/main.rs:91:17
[INFO] [stderr]    |
[INFO] [stderr] 91 |             let request = match rx.try_recv() {
[INFO] [stderr]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request`
[INFO] [stderr] 
[INFO] [stderr] warning: `chat_box` (bin "chat_box" test) generated 7 warnings (run `cargo fix --bin "chat_box" --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/chat_box-a554c4be8fa771a8)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "11abdb479d5f272f367f8781daa39059f191cb2f99d2ff4ac28b6a110c9a6252", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11abdb479d5f272f367f8781daa39059f191cb2f99d2ff4ac28b6a110c9a6252", kill_on_drop: false }`
[INFO] [stdout] 11abdb479d5f272f367f8781daa39059f191cb2f99d2ff4ac28b6a110c9a6252
[INFO] testing namelesslogger/chat_box against try#d073071d77ce0f93b4fd8cc567a1e2b9e1b22126+rustflags=-Copt-level=3 for pr-121282
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnamelesslogger%2Fchat_box" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/namelesslogger/chat_box on toolchain d073071d77ce0f93b4fd8cc567a1e2b9e1b22126
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/namelesslogger/chat_box
[INFO] finished tweaking git repo https://github.com/namelesslogger/chat_box
[INFO] tweaked toml for git repo https://github.com/namelesslogger/chat_box written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/namelesslogger/chat_box 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" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5377b27e2564e15287123215978bb003c638fc960187c6452cab04ee0a63d970
[INFO] running `Command { std: "docker" "start" "-a" "5377b27e2564e15287123215978bb003c638fc960187c6452cab04ee0a63d970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5377b27e2564e15287123215978bb003c638fc960187c6452cab04ee0a63d970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5377b27e2564e15287123215978bb003c638fc960187c6452cab04ee0a63d970", kill_on_drop: false }`
[INFO] [stdout] 5377b27e2564e15287123215978bb003c638fc960187c6452cab04ee0a63d970
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 501606540d19fb3eec31e30a5056caaaa70bb052a4a45aaa8a19013516f377d8
[INFO] running `Command { std: "docker" "start" "-a" "501606540d19fb3eec31e30a5056caaaa70bb052a4a45aaa8a19013516f377d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling subtle v2.3.0
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling zmq v0.9.2
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]    Compiling unicode-segmentation v1.7.0
[INFO] [stderr]    Compiling cassowary v0.3.0
[INFO] [stderr]    Compiling whoami v0.7.0
[INFO] [stderr]    Compiling hex v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling termion v1.5.5
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling tui v0.13.0
[INFO] [stderr]    Compiling zmq-sys v0.11.0
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling cipher v0.2.5
[INFO] [stderr]    Compiling universal-hash v0.4.0
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling aead v0.3.2
[INFO] [stderr]    Compiling poly1305 v0.6.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling zeroize_derive v1.0.1
[INFO] [stderr]    Compiling zeroize v1.1.1
[INFO] [stderr]    Compiling salsa20 v0.7.2
[INFO] [stderr]    Compiling chacha20 v0.6.0
[INFO] [stderr]    Compiling curve25519-dalek v3.0.0
[INFO] [stderr]    Compiling xsalsa20poly1305 v0.6.0
[INFO] [stderr]    Compiling chacha20poly1305 v0.7.1
[INFO] [stderr]    Compiling x25519-dalek v1.1.0
[INFO] [stderr]    Compiling crypto_box v0.5.0
[INFO] [stderr]    Compiling chat_box v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `hex` is imported redundantly
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use hex;
[INFO] [stdout]   |     ^^^ the item `hex` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `collections::HashMap`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     collections::HashMap,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]   --> src/main.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | use rand::{thread_rng, Rng};
[INFO] [stdout]    |                        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `event::Key`, `input::MouseTerminal`, `raw::IntoRawMode`, `screen::AlternateScreen`
[INFO] [stdout]   --> src/main.rs:12:15
[INFO] [stdout]    |
[INFO] [stdout] 12 | use termion::{event::Key, input::MouseTerminal, raw::IntoRawMode, screen::AlternateScreen};
[INFO] [stdout]    |               ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Block`, `Borders`, `Color`, `Constraint`, `Direction`, `Layout`, `ListItem`, `List`, `Modifier`, `Paragraph`, `Span`, `Spans`, `Style`, `Terminal`, `Text`, `backend::TermionBackend`
[INFO] [stdout]   --> src/main.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     backend::TermionBackend,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 15 |     layout::{Constraint, Direction, Layout},
[INFO] [stdout]    |              ^^^^^^^^^^  ^^^^^^^^^  ^^^^^^
[INFO] [stdout] 16 |     style::{Color, Modifier, Style},
[INFO] [stdout]    |             ^^^^^  ^^^^^^^^  ^^^^^
[INFO] [stdout] 17 |     text::{Span, Spans, Text},
[INFO] [stdout]    |            ^^^^  ^^^^^  ^^^^
[INFO] [stdout] 18 |     widgets::{Block, Borders, List, ListItem, Paragraph},
[INFO] [stdout]    |               ^^^^^  ^^^^^^^  ^^^^  ^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 19 |     Terminal,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> src/main.rs:74:17
[INFO] [stdout]    |
[INFO] [stdout] 74 |             let message = match self.client_message.try_recv() {
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `request`
[INFO] [stdout]   --> src/main.rs:91:17
[INFO] [stdout]    |
[INFO] [stdout] 91 |             let request = match rx.try_recv() {
[INFO] [stdout]    |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_request`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.78s
[INFO] running `Command { std: "docker" "inspect" "501606540d19fb3eec31e30a5056caaaa70bb052a4a45aaa8a19013516f377d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "501606540d19fb3eec31e30a5056caaaa70bb052a4a45aaa8a19013516f377d8", kill_on_drop: false }`
[INFO] [stdout] 501606540d19fb3eec31e30a5056caaaa70bb052a4a45aaa8a19013516f377d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+d073071d77ce0f93b4fd8cc567a1e2b9e1b22126" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/1cdb57070f657bf8046b7d037eb09f4ca8848d3e8070a0747ad01f413956da5e-init: no space left on device