[INFO] cloning repository https://github.com/jkhsjdhjs/LedESP8266_backend-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jkhsjdhjs/LedESP8266_backend-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkhsjdhjs%2FLedESP8266_backend-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkhsjdhjs%2FLedESP8266_backend-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3643a89e9e98eee91a47a9825e59440e817bbf0c [INFO] checking jkhsjdhjs/LedESP8266_backend-rs against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjkhsjdhjs%2FLedESP8266_backend-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jkhsjdhjs/LedESP8266_backend-rs on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jkhsjdhjs/LedESP8266_backend-rs [INFO] finished tweaking git repo https://github.com/jkhsjdhjs/LedESP8266_backend-rs [INFO] tweaked toml for git repo https://github.com/jkhsjdhjs/LedESP8266_backend-rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/jkhsjdhjs/LedESP8266_backend-rs 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded byteorder v1.3.1 [INFO] [stderr] Downloaded smallvec v0.6.8 [INFO] [stderr] Downloaded rand_os v0.1.2 [INFO] [stderr] Downloaded itoa v0.4.3 [INFO] [stderr] Downloaded autocfg v0.1.2 [INFO] [stderr] Downloaded quote v0.6.11 [INFO] [stderr] Downloaded rand_jitter v0.1.2 [INFO] [stderr] Downloaded proc-macro2 v0.4.27 [INFO] [stderr] Downloaded syn v0.15.26 [INFO] [stderr] Downloaded libc v0.2.48 [INFO] [stderr] Downloaded serde v1.0.87 [INFO] [stderr] Downloaded serde_json v1.0.38 [INFO] [stderr] Downloaded serde_derive v1.0.87 [INFO] [stderr] Downloaded ryu v0.2.7 [INFO] [stderr] Downloaded ws v0.7.9 [INFO] [stderr] Downloaded rand_pcg v0.1.1 [INFO] [stderr] Downloaded uuid v0.7.2 [INFO] [stderr] Downloaded httparse v1.3.3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] fde5e258abc3fa63e081f31c65faae81a68ff037b3c76a472640b5bcd18a238e [INFO] running `Command { std: "docker" "start" "-a" "fde5e258abc3fa63e081f31c65faae81a68ff037b3c76a472640b5bcd18a238e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "fde5e258abc3fa63e081f31c65faae81a68ff037b3c76a472640b5bcd18a238e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fde5e258abc3fa63e081f31c65faae81a68ff037b3c76a472640b5bcd18a238e", kill_on_drop: false }` [INFO] [stdout] fde5e258abc3fa63e081f31c65faae81a68ff037b3c76a472640b5bcd18a238e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 04f66e6355d9ae7eb227ca5d49e61150c4b6f603ad632cf02756f01b6b658473 [INFO] running `Command { std: "docker" "start" "-a" "04f66e6355d9ae7eb227ca5d49e61150c4b6f603ad632cf02756f01b6b658473", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.48 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking log v0.4.6 [INFO] [stderr] Checking smallvec v0.6.8 [INFO] [stderr] Compiling serde v1.0.87 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Checking unicode-normalization v0.1.8 [INFO] [stderr] Compiling ryu v0.2.7 [INFO] [stderr] Compiling httparse v1.3.3 [INFO] [stderr] Checking lazycell v1.2.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling quote v0.6.11 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_jitter v0.1.2 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Compiling syn v0.15.26 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking rand_os v0.1.2 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking bytes v0.4.11 [INFO] [stderr] Checking mio v0.6.16 [INFO] [stderr] Checking itoa v0.4.3 [INFO] [stderr] Checking sha1 v0.6.0 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking mio-extras v2.0.5 [INFO] [stderr] Checking uuid v0.7.2 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking ws v0.7.9 [INFO] [stderr] Compiling serde_derive v1.0.87 [INFO] [stderr] Checking serde_json v1.0.38 [INFO] [stderr] Checking led_esp8266_backend_rs v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/main.rs:48:25 [INFO] [stdout] | [INFO] [stdout] 48 | let ref b = WS_CONNECTIONS; [INFO] [stdout] | ^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 48 | let ref b = addr_of!(WS_CONNECTIONS); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/main.rs:71:25 [INFO] [stdout] | [INFO] [stdout] 71 | let ref b = WS_CONNECTIONS; [INFO] [stdout] | ^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 71 | let ref b = addr_of!(WS_CONNECTIONS); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/main.rs:159:25 [INFO] [stdout] | [INFO] [stdout] 159 | let ref b = WS_CONNECTIONS; [INFO] [stdout] | ^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 159 | let ref b = addr_of!(WS_CONNECTIONS); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/main.rs:191:25 [INFO] [stdout] | [INFO] [stdout] 191 | let ref b = WS_CONNECTIONS; [INFO] [stdout] | ^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 191 | let ref b = addr_of!(WS_CONNECTIONS); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/main.rs:48:25 [INFO] [stdout] | [INFO] [stdout] 48 | let ref b = WS_CONNECTIONS; [INFO] [stdout] | ^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 48 | let ref b = addr_of!(WS_CONNECTIONS); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/main.rs:214:25 [INFO] [stdout] | [INFO] [stdout] 214 | let ref b = WS_CONNECTIONS; [INFO] [stdout] | ^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 214 | let ref b = addr_of!(WS_CONNECTIONS); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/main.rs:71:25 [INFO] [stdout] | [INFO] [stdout] 71 | let ref b = WS_CONNECTIONS; [INFO] [stdout] | ^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 71 | let ref b = addr_of!(WS_CONNECTIONS); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/main.rs:268:25 [INFO] [stdout] | [INFO] [stdout] 268 | let ref b = WS_CONNECTIONS; [INFO] [stdout] | ^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 268 | let ref b = addr_of!(WS_CONNECTIONS); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/main.rs:159:25 [INFO] [stdout] | [INFO] [stdout] 159 | let ref b = WS_CONNECTIONS; [INFO] [stdout] | ^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 159 | let ref b = addr_of!(WS_CONNECTIONS); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/main.rs:191:25 [INFO] [stdout] | [INFO] [stdout] 191 | let ref b = WS_CONNECTIONS; [INFO] [stdout] | ^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 191 | let ref b = addr_of!(WS_CONNECTIONS); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/main.rs:214:25 [INFO] [stdout] | [INFO] [stdout] 214 | let ref b = WS_CONNECTIONS; [INFO] [stdout] | ^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 214 | let ref b = addr_of!(WS_CONNECTIONS); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/main.rs:268:25 [INFO] [stdout] | [INFO] [stdout] 268 | let ref b = WS_CONNECTIONS; [INFO] [stdout] | ^^^^^^^^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 268 | let ref b = addr_of!(WS_CONNECTIONS); [INFO] [stdout] | ~~~~~~~~~~~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.69s [INFO] running `Command { std: "docker" "inspect" "04f66e6355d9ae7eb227ca5d49e61150c4b6f603ad632cf02756f01b6b658473", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "04f66e6355d9ae7eb227ca5d49e61150c4b6f603ad632cf02756f01b6b658473", kill_on_drop: false }` [INFO] [stdout] 04f66e6355d9ae7eb227ca5d49e61150c4b6f603ad632cf02756f01b6b658473