[INFO] cloning repository https://github.com/javierjcf/gui_serial2websocket
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/javierjcf/gui_serial2websocket" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjavierjcf%2Fgui_serial2websocket", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjavierjcf%2Fgui_serial2websocket'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3630393488a10161402c08329ba1e21a17eb9864
[INFO] testing javierjcf/gui_serial2websocket against try#db823df02fd0c2cf67b43025ac3fef3f2d743245 for pr-150681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjavierjcf%2Fgui_serial2websocket" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/javierjcf/gui_serial2websocket
[INFO] finished tweaking git repo https://github.com/javierjcf/gui_serial2websocket
[INFO] tweaked toml for git repo https://github.com/javierjcf/gui_serial2websocket written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/javierjcf/gui_serial2websocket on toolchain db823df02fd0c2cf67b43025ac3fef3f2d743245
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/javierjcf/gui_serial2websocket 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" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded accesskit_macos v0.4.2
[INFO] [stderr]   Downloaded crossfont v0.5.2
[INFO] [stderr]   Downloaded egui-winit v0.20.1
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[INFO] [stderr]   Downloaded tokio-serial v5.4.5
[INFO] [stderr]   Downloaded tokio-tungstenite v0.15.0
[INFO] [stderr]   Downloaded accesskit_consumer v0.12.1
[INFO] [stderr]   Downloaded accesskit_windows v0.10.4
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[INFO] [stderr]   Downloaded serialport v4.7.0
[INFO] [stderr]   Downloaded accesskit_winit v0.7.3
[INFO] [stderr]   Downloaded ecolor v0.20.0
[INFO] [stderr]   Downloaded egui v0.20.1
[INFO] [stderr]   Downloaded epaint v0.20.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17f35a89a160cb3e01e0b39efdbe2c98e90448a408c358e6ff5fed759c3827a3
[INFO] running `Command { std: "docker" "start" "-a" "17f35a89a160cb3e01e0b39efdbe2c98e90448a408c358e6ff5fed759c3827a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17f35a89a160cb3e01e0b39efdbe2c98e90448a408c358e6ff5fed759c3827a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17f35a89a160cb3e01e0b39efdbe2c98e90448a408c358e6ff5fed759c3827a3", kill_on_drop: false }`
[INFO] [stdout] 17f35a89a160cb3e01e0b39efdbe2c98e90448a408c358e6ff5fed759c3827a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c2369a4a2f61bc7d4ea1da50b5781dd1a769b4108fae33738099219a5e4701b
[INFO] running `Command { std: "docker" "start" "-a" "4c2369a4a2f61bc7d4ea1da50b5781dd1a769b4108fae33738099219a5e4701b", kill_on_drop: false }`
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[INFO] [stderr]    Compiling pin-project-internal v1.1.9
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[INFO] [stderr]    Compiling safe_arch v0.5.2
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[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling zerofrom v0.1.5
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling enumset_derive v0.10.0
[INFO] [stderr]    Compiling mio-serial v5.0.6
[INFO] [stderr]    Compiling yoke v0.7.5
[INFO] [stderr]    Compiling tiny-skia v0.7.0
[INFO] [stderr]    Compiling epaint v0.20.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling zerovec v0.10.4
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling enumset v1.1.5
[INFO] [stderr]    Compiling accesskit v0.8.1
[INFO] [stderr]    Compiling egui v0.20.1
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling tinystr v0.7.6
[INFO] [stderr]    Compiling icu_collections v1.5.0
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling icu_locid v1.5.0
[INFO] [stderr]    Compiling icu_provider v1.5.0
[INFO] [stderr]    Compiling icu_locid_transform v1.5.0
[INFO] [stderr]    Compiling icu_properties v1.5.1
[INFO] [stderr]    Compiling tokio-serial v5.4.5
[INFO] [stderr]    Compiling egui_glow v0.20.1
[INFO] [stderr]    Compiling icu_normalizer v1.5.0
[INFO] [stderr]    Compiling idna_adapter v1.2.0
[INFO] [stderr]    Compiling idna v1.0.3
[INFO] [stderr]    Compiling url v2.5.4
[INFO] [stderr]    Compiling webbrowser v0.8.15
[INFO] [stderr]    Compiling tungstenite v0.14.0
[INFO] [stderr]    Compiling tokio-tungstenite v0.15.0
[INFO] [stderr]    Compiling sctk-adwaita v0.4.3
[INFO] [stderr]    Compiling smithay-clipboard v0.6.6
[INFO] [stderr]    Compiling winit v0.27.5
[INFO] [stderr]    Compiling accesskit_winit v0.7.3
[INFO] [stderr]    Compiling egui-winit v0.20.1
[INFO] [stderr]    Compiling eframe v0.20.1
[INFO] [stderr]    Compiling serial_to_websocket v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `AsyncWriteExt`
[INFO] [stdout]  --> src/main.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:146:25
[INFO] [stdout]     |
[INFO] [stdout] 146 |                     let mut clients_guard = clients.lock().await;
[INFO] [stdout]     |                         ----^^^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:178:49
[INFO] [stdout]     |
[INFO] [stdout] 178 | ...                   let mut clients_guard = clients.lock().await;
[INFO] [stdout]     |                           ----^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:191:45
[INFO] [stdout]     |
[INFO] [stdout] 191 | ...                   let mut clients_guard = clients.lock().await;
[INFO] [stdout]     |                           ----^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StreamExt`
[INFO] [stdout]  --> src/main.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures_util::{StreamExt, SinkExt};
[INFO] [stdout]   |                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 57.04s
[INFO] running `Command { std: "docker" "inspect" "4c2369a4a2f61bc7d4ea1da50b5781dd1a769b4108fae33738099219a5e4701b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c2369a4a2f61bc7d4ea1da50b5781dd1a769b4108fae33738099219a5e4701b", kill_on_drop: false }`
[INFO] [stdout] 4c2369a4a2f61bc7d4ea1da50b5781dd1a769b4108fae33738099219a5e4701b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 899835c9589eb9c7c0e680f4e025e92ebc99c387c491910bf41ab40a12366311
[INFO] running `Command { std: "docker" "start" "-a" "899835c9589eb9c7c0e680f4e025e92ebc99c387c491910bf41ab40a12366311", kill_on_drop: false }`
[INFO] [stderr]    Compiling serial_to_websocket v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `AsyncWriteExt`
[INFO] [stdout]  --> src/main.rs:2:31
[INFO] [stdout]   |
[INFO] [stdout] 2 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:146:25
[INFO] [stdout]     |
[INFO] [stdout] 146 |                     let mut clients_guard = clients.lock().await;
[INFO] [stdout]     |                         ----^^^^^^^^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:178:49
[INFO] [stdout]     |
[INFO] [stdout] 178 | ...                   let mut clients_guard = clients.lock().await;
[INFO] [stdout]     |                           ----^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:191:45
[INFO] [stdout]     |
[INFO] [stdout] 191 | ...                   let mut clients_guard = clients.lock().await;
[INFO] [stdout]     |                           ----^^^^^^^^^^^^^
[INFO] [stdout]     |                           |
[INFO] [stdout]     |                           help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StreamExt`
[INFO] [stdout]  --> src/main.rs:7:20
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures_util::{StreamExt, SinkExt};
[INFO] [stdout]   |                    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.89s
[INFO] running `Command { std: "docker" "inspect" "899835c9589eb9c7c0e680f4e025e92ebc99c387c491910bf41ab40a12366311", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "899835c9589eb9c7c0e680f4e025e92ebc99c387c491910bf41ab40a12366311", kill_on_drop: false }`
[INFO] [stdout] 899835c9589eb9c7c0e680f4e025e92ebc99c387c491910bf41ab40a12366311
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db823df02fd0c2cf67b43025ac3fef3f2d743245" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fb381885fd422d9f4d5be122cc901b906f538b27aa17238024102aac588706a4
[INFO] running `Command { std: "docker" "start" "-a" "fb381885fd422d9f4d5be122cc901b906f538b27aa17238024102aac588706a4", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `AsyncWriteExt`
[INFO] [stderr]  --> src/main.rs:2:31
[INFO] [stderr]   |
[INFO] [stderr] 2 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stderr]   |                               ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:146:25
[INFO] [stderr]     |
[INFO] [stderr] 146 |                     let mut clients_guard = clients.lock().await;
[INFO] [stderr]     |                         ----^^^^^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:178:49
[INFO] [stderr]     |
[INFO] [stderr] 178 | ...                   let mut clients_guard = clients.lock().await;
[INFO] [stderr]     |                           ----^^^^^^^^^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:191:45
[INFO] [stderr]     |
[INFO] [stderr] 191 | ...                   let mut clients_guard = clients.lock().await;
[INFO] [stderr]     |                           ----^^^^^^^^^^^^^
[INFO] [stderr]     |                           |
[INFO] [stderr]     |                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `StreamExt`
[INFO] [stderr]  --> src/main.rs:7:20
[INFO] [stderr]   |
[INFO] [stderr] 7 | use futures_util::{StreamExt, SinkExt};
[INFO] [stderr]   |                    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `serial_to_websocket` (bin "serial_to_websocket" test) generated 5 warnings (run `cargo fix --bin "serial_to_websocket" -p serial_to_websocket --tests` to apply 4 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.30s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/serial_to_websocket-38f87f0bb34d5854)
[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" "fb381885fd422d9f4d5be122cc901b906f538b27aa17238024102aac588706a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb381885fd422d9f4d5be122cc901b906f538b27aa17238024102aac588706a4", kill_on_drop: false }`
[INFO] [stdout] fb381885fd422d9f4d5be122cc901b906f538b27aa17238024102aac588706a4
