[INFO] fetching crate actix-ws 0.2.5...
[INFO] checking actix-ws-0.2.5 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate actix-ws 0.2.5 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate actix-ws 0.2.5 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate actix-ws 0.2.5
[INFO] finished tweaking crates.io crate actix-ws 0.2.5
[INFO] tweaked toml for crates.io crate actix-ws 0.2.5 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ddee392207871bd7df392a77f854b782a0db623cfb1c6a2279d0696a26c3f7f5
[INFO] running `Command { std: "docker" "start" "-a" "ddee392207871bd7df392a77f854b782a0db623cfb1c6a2279d0696a26c3f7f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ddee392207871bd7df392a77f854b782a0db623cfb1c6a2279d0696a26c3f7f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ddee392207871bd7df392a77f854b782a0db623cfb1c6a2279d0696a26c3f7f5", kill_on_drop: false }`
[INFO] [stdout] ddee392207871bd7df392a77f854b782a0db623cfb1c6a2279d0696a26c3f7f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab9a9f5f868af1bed72acadcfe00da1a1760998ac0aa35ade1907dd3c35ba6d0
[INFO] running `Command { std: "docker" "start" "-a" "ab9a9f5f868af1bed72acadcfe00da1a1760998ac0aa35ade1907dd3c35ba6d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking local-waker v0.1.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling ahash v0.8.7
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking actix-utils v3.0.1
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking bytestring v1.3.1
[INFO] [stderr]     Checking http v0.2.11
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking local-channel v0.1.5
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking actix-service v2.0.2
[INFO] [stderr]     Checking language-tags v0.3.2
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking actix-router v0.5.2
[INFO] [stderr]     Checking actix-rt v2.9.0
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking actix-server v2.3.0
[INFO] [stderr]     Checking actix-codec v0.5.2
[INFO] [stderr]     Checking actix-http v3.6.0
[INFO] [stderr]     Checking actix-web v4.5.1
[INFO] [stderr]     Checking actix-ws v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/fut.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut this = self.get_mut();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/fut.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let mut this = self.get_mut();
[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/fut.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut this = self.get_mut();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/fut.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let mut this = self.get_mut();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.67s
[INFO] running `Command { std: "docker" "inspect" "ab9a9f5f868af1bed72acadcfe00da1a1760998ac0aa35ade1907dd3c35ba6d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab9a9f5f868af1bed72acadcfe00da1a1760998ac0aa35ade1907dd3c35ba6d0", kill_on_drop: false }`
[INFO] [stdout] ab9a9f5f868af1bed72acadcfe00da1a1760998ac0aa35ade1907dd3c35ba6d0
[INFO] checking actix-ws-0.2.5 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] extracting crate actix-ws 0.2.5 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate actix-ws 0.2.5 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate actix-ws 0.2.5
[INFO] finished tweaking crates.io crate actix-ws 0.2.5
[INFO] tweaked toml for crates.io crate actix-ws 0.2.5 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf35f52e00ad846fe30b55540e2aa2f972d83dade15a63097a4f100a15b9d480
[INFO] running `Command { std: "docker" "start" "-a" "cf35f52e00ad846fe30b55540e2aa2f972d83dade15a63097a4f100a15b9d480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf35f52e00ad846fe30b55540e2aa2f972d83dade15a63097a4f100a15b9d480", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf35f52e00ad846fe30b55540e2aa2f972d83dade15a63097a4f100a15b9d480", kill_on_drop: false }`
[INFO] [stdout] cf35f52e00ad846fe30b55540e2aa2f972d83dade15a63097a4f100a15b9d480
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dunexpected_cfgs" "-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" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] 19fd75492c52a72ad9dc5bd5d0ac750c6b4457efefc1deef9da150031a65617b
[INFO] running `Command { std: "docker" "start" "-a" "19fd75492c52a72ad9dc5bd5d0ac750c6b4457efefc1deef9da150031a65617b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking bytes v1.5.0
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking local-waker v0.1.4
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling ahash v0.8.7
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking fnv v1.0.7
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking actix-utils v3.0.1
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking powerfmt v0.2.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking bytestring v1.3.1
[INFO] [stderr]     Checking http v0.2.11
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]    Compiling serde_json v1.0.113
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking deranged v0.3.11
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking local-channel v0.1.5
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking encoding_rs v0.8.33
[INFO] [stderr]     Checking httpdate v1.0.3
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking actix-service v2.0.2
[INFO] [stderr]     Checking num-conv v0.1.0
[INFO] [stderr]     Checking base64 v0.21.7
[INFO] [stderr]     Checking language-tags v0.3.2
[INFO] [stderr]     Checking time-core v0.1.2
[INFO] [stderr]     Checking mio v0.8.10
[INFO] [stderr]     Checking socket2 v0.5.5
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking time v0.3.34
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking tokio v1.36.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking sha1 v0.10.6
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking regex-automata v0.4.5
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking actix-rt v2.9.0
[INFO] [stderr]     Checking tokio-util v0.7.10
[INFO] [stderr]     Checking actix-server v2.3.0
[INFO] [stderr]     Checking regex v1.10.3
[INFO] [stderr]     Checking actix-codec v0.5.2
[INFO] [stderr]     Checking actix-router v0.5.2
[INFO] [stderr]     Checking actix-http v3.6.0
[INFO] [stderr]     Checking actix-web v4.5.1
[INFO] [stderr]     Checking actix-ws v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/fut.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut this = self.get_mut();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/fut.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let mut this = self.get_mut();
[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/fut.rs:103:13
[INFO] [stdout]     |
[INFO] [stdout] 103 |         let mut this = self.get_mut();
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/fut.rs:140:13
[INFO] [stdout]     |
[INFO] [stdout] 140 |         let mut this = self.get_mut();
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.69s
[INFO] running `Command { std: "docker" "inspect" "19fd75492c52a72ad9dc5bd5d0ac750c6b4457efefc1deef9da150031a65617b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19fd75492c52a72ad9dc5bd5d0ac750c6b4457efefc1deef9da150031a65617b", kill_on_drop: false }`
[INFO] [stdout] 19fd75492c52a72ad9dc5bd5d0ac750c6b4457efefc1deef9da150031a65617b
