[INFO] cloning repository https://github.com/chrishayuk/rust-websockets-timebot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chrishayuk/rust-websockets-timebot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrishayuk%2Frust-websockets-timebot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrishayuk%2Frust-websockets-timebot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58b63f65d274aa6a754d9144fd9636e43122c380
[INFO] checking chrishayuk/rust-websockets-timebot against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchrishayuk%2Frust-websockets-timebot" "/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/chrishayuk/rust-websockets-timebot 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/chrishayuk/rust-websockets-timebot
[INFO] finished tweaking git repo https://github.com/chrishayuk/rust-websockets-timebot
[INFO] tweaked toml for git repo https://github.com/chrishayuk/rust-websockets-timebot written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/chrishayuk/rust-websockets-timebot 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] 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] 7d9086ee4ccb27fa2495b22ed573ba0e5716b4761780ae75aff4f1b73eeeb319
[INFO] running `Command { std: "docker" "start" "-a" "7d9086ee4ccb27fa2495b22ed573ba0e5716b4761780ae75aff4f1b73eeeb319", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d9086ee4ccb27fa2495b22ed573ba0e5716b4761780ae75aff4f1b73eeeb319", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d9086ee4ccb27fa2495b22ed573ba0e5716b4761780ae75aff4f1b73eeeb319", kill_on_drop: false }`
[INFO] [stdout] 7d9086ee4ccb27fa2495b22ed573ba0e5716b4761780ae75aff4f1b73eeeb319
[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] 1972c8d08aae4e7b025038ab55e0f23cd5c5dd737faddf4a2443a9dbb46feded
[INFO] running `Command { std: "docker" "start" "-a" "1972c8d08aae4e7b025038ab55e0f23cd5c5dd737faddf4a2443a9dbb46feded", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling vcpkg v0.2.15
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling openssl v0.10.61
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]    Compiling native-tls v0.2.11
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling futures-task v0.3.29
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling thiserror v1.0.51
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]    Compiling futures-util v0.3.29
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking utf-8 v0.7.6
[INFO] [stderr]     Checking iana-time-zone v0.1.58
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking http v1.0.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling openssl-sys v0.9.97
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.51
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling futures-macro v0.3.29
[INFO] [stderr]     Checking tokio v1.35.0
[INFO] [stderr]     Checking tungstenite v0.21.0
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking tokio-tungstenite v0.21.0
[INFO] [stderr]     Checking rust-websockets-timebot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:116:21
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let (mut write, mut read) = ws_stream.split();
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:116:21
[INFO] [stdout]     |
[INFO] [stdout] 116 |     let (mut write, mut read) = ws_stream.split();
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.18s
[INFO] running `Command { std: "docker" "inspect" "1972c8d08aae4e7b025038ab55e0f23cd5c5dd737faddf4a2443a9dbb46feded", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1972c8d08aae4e7b025038ab55e0f23cd5c5dd737faddf4a2443a9dbb46feded", kill_on_drop: false }`
[INFO] [stdout] 1972c8d08aae4e7b025038ab55e0f23cd5c5dd737faddf4a2443a9dbb46feded