[INFO] cloning repository https://github.com/rustnew/websocket_app
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rustnew/websocket_app" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustnew%2Fwebsocket_app", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustnew%2Fwebsocket_app'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 558ecbbfa54a409100e25d1901545c454c0f0f95
[INFO] checking rustnew/websocket_app/558ecbbfa54a409100e25d1901545c454c0f0f95 against master#c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3 for pr-141352
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustnew%2Fwebsocket_app" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rustnew/websocket_app on toolchain c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rustnew/websocket_app
[INFO] finished tweaking git repo https://github.com/rustnew/websocket_app
[INFO] tweaked toml for git repo https://github.com/rustnew/websocket_app written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rustnew/websocket_app 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" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 859f4279340e6741875b29dee533a1df9dfd4b7fc440d0175949a01c0853e4ef
[INFO] running `Command { std: "docker" "start" "-a" "859f4279340e6741875b29dee533a1df9dfd4b7fc440d0175949a01c0853e4ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "859f4279340e6741875b29dee533a1df9dfd4b7fc440d0175949a01c0853e4ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "859f4279340e6741875b29dee533a1df9dfd4b7fc440d0175949a01c0853e4ef", kill_on_drop: false }`
[INFO] [stdout] 859f4279340e6741875b29dee533a1df9dfd4b7fc440d0175949a01c0853e4ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+c43786c9b7b8d8dcc3f9c604e0e3074c16ed69d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f62ca3dd458e04ada10ab3f265b57183c9aee19f240b304a42b18ab8f9ff23cb
[INFO] running `Command { std: "docker" "start" "-a" "f62ca3dd458e04ada10ab3f265b57183c9aee19f240b304a42b18ab8f9ff23cb", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling version_check v0.9.5
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]     Checking itoa v1.0.15
[INFO] [stderr]    Compiling icu_locid_transform_data v1.5.1
[INFO] [stderr]     Checking litemap v0.7.5
[INFO] [stderr]     Checking writeable v0.5.5
[INFO] [stderr]    Compiling typenum v1.18.0
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]    Compiling icu_properties_data v1.5.1
[INFO] [stderr]    Compiling icu_normalizer_data v1.5.1
[INFO] [stderr]     Checking futures-core v0.3.31
[INFO] [stderr]     Checking futures-sink v0.3.31
[INFO] [stderr]    Compiling zerocopy v0.8.24
[INFO] [stderr]    Compiling httparse v1.10.1
[INFO] [stderr]     Checking write16 v1.0.0
[INFO] [stderr]     Checking utf16_iter v1.0.5
[INFO] [stderr]     Checking log v0.4.27
[INFO] [stderr]     Checking utf8_iter v1.0.4
[INFO] [stderr]     Checking futures-task v0.3.31
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking cpufeatures v0.2.17
[INFO] [stderr]    Compiling unicase v2.8.1
[INFO] [stderr]     Checking equivalent v1.0.2
[INFO] [stderr]     Checking hashbrown v0.15.2
[INFO] [stderr]     Checking ryu v1.0.20
[INFO] [stderr]     Checking tracing-core v0.1.33
[INFO] [stderr]    Compiling serde_json v1.0.140
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling multer v2.1.0
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling mime_guess v2.0.5
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking indexmap v2.9.0
[INFO] [stderr]     Checking data-encoding v2.9.0
[INFO] [stderr]     Checking futures-channel v0.3.31
[INFO] [stderr]     Checking encoding_rs v0.8.35
[INFO] [stderr]     Checking http v0.2.12
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking http v1.3.1
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking tower-service v0.3.3
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking http-body v0.4.6
[INFO] [stderr]     Checking headers-core v0.2.0
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking mio v1.0.3
[INFO] [stderr]     Checking getrandom v0.2.15
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking socket2 v0.5.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking parking_lot v0.12.3
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking headers v0.3.9
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling synstructure v0.13.1
[INFO] [stderr]    Compiling zerofrom-derive v0.1.6
[INFO] [stderr]    Compiling yoke-derive v0.7.5
[INFO] [stderr]    Compiling zerovec-derive v0.10.3
[INFO] [stderr]    Compiling displaydoc v0.2.5
[INFO] [stderr]    Compiling icu_provider_macros v1.5.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling pin-project-internal v1.1.10
[INFO] [stderr]     Checking tokio v1.44.2
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking pin-project v1.1.10
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking yoke v0.7.5
[INFO] [stderr]     Checking zerovec v0.10.4
[INFO] [stderr]     Checking tinystr v0.7.6
[INFO] [stderr]     Checking icu_collections v1.5.0
[INFO] [stderr]     Checking icu_locid v1.5.0
[INFO] [stderr]     Checking icu_provider v1.5.0
[INFO] [stderr]     Checking icu_locid_transform v1.5.0
[INFO] [stderr]     Checking icu_properties v1.5.1
[INFO] [stderr]     Checking tokio-util v0.7.14
[INFO] [stderr]     Checking h2 v0.3.26
[INFO] [stderr]     Checking icu_normalizer v1.5.0
[INFO] [stderr]     Checking idna_adapter v1.2.0
[INFO] [stderr]     Checking idna v1.0.3
[INFO] [stderr]     Checking url v2.5.4
[INFO] [stderr]     Checking tungstenite v0.21.0
[INFO] [stderr]     Checking tokio-tungstenite v0.21.0
[INFO] [stderr]     Checking hyper v0.14.32
[INFO] [stderr]     Checking warp v0.3.7
[INFO] [stderr]     Checking chat_app_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/func.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |             Err(e) => break,
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/func.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |             Err(e) => break,
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 39.21s
[INFO] running `Command { std: "docker" "inspect" "f62ca3dd458e04ada10ab3f265b57183c9aee19f240b304a42b18ab8f9ff23cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f62ca3dd458e04ada10ab3f265b57183c9aee19f240b304a42b18ab8f9ff23cb", kill_on_drop: false }`
[INFO] [stdout] f62ca3dd458e04ada10ab3f265b57183c9aee19f240b304a42b18ab8f9ff23cb