[INFO] fetching crate rudderanalytics 1.1.4...
[INFO] testing rudderanalytics-1.1.4 against 1.95.0 for beta-1.96-2
[INFO] extracting crate rudderanalytics 1.1.4 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate rudderanalytics 1.1.4
[INFO] finished tweaking crates.io crate rudderanalytics 1.1.4
[INFO] tweaked toml for crates.io crate rudderanalytics 1.1.4 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rudderanalytics 1.1.4 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rudderanalytics 1.1.4 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a52ccc4538b1ce98d99bad6a65b8ff0034cb8caeb6f6c2f818af70d6b183f7d3
[INFO] running `Command { std: "docker" "start" "-a" "a52ccc4538b1ce98d99bad6a65b8ff0034cb8caeb6f6c2f818af70d6b183f7d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a52ccc4538b1ce98d99bad6a65b8ff0034cb8caeb6f6c2f818af70d6b183f7d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a52ccc4538b1ce98d99bad6a65b8ff0034cb8caeb6f6c2f818af70d6b183f7d3", kill_on_drop: false }`
[INFO] [stdout] a52ccc4538b1ce98d99bad6a65b8ff0034cb8caeb6f6c2f818af70d6b183f7d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52c7555c4f5e02a686423a62bbdbb7935b1e66359101b85146cd30f384e3c0e2
[INFO] running `Command { std: "docker" "start" "-a" "52c7555c4f5e02a686423a62bbdbb7935b1e66359101b85146cd30f384e3c0e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling cc v1.1.6
[INFO] [stderr]    Compiling bytes v1.6.1
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling openssl v0.10.66
[INFO] [stderr]    Compiling httparse v1.9.4
[INFO] [stderr]    Compiling native-tls v0.2.12
[INFO] [stderr]    Compiling futures-io v0.3.30
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling bitflags v2.6.0
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling futures-task v0.3.30
[INFO] [stderr]    Compiling http v0.2.12
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling futures-util v0.3.30
[INFO] [stderr]    Compiling syn v2.0.72
[INFO] [stderr]    Compiling tinyvec v1.8.0
[INFO] [stderr]    Compiling tracing v0.1.40
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling openssl-sys v0.9.103
[INFO] [stderr]    Compiling mio v1.0.1
[INFO] [stderr]    Compiling socket2 v0.5.7
[INFO] [stderr]    Compiling unicode-normalization v0.1.23
[INFO] [stderr]    Compiling http-body v0.4.6
[INFO] [stderr]    Compiling tokio v1.39.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling regex-syntax v0.8.4
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling idna v0.5.0
[INFO] [stderr]    Compiling base64 v0.21.7
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling url v2.5.2
[INFO] [stderr]    Compiling rustls-pemfile v1.0.4
[INFO] [stderr]    Compiling is-terminal v0.4.12
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling regex-automata v0.4.7
[INFO] [stderr]    Compiling iana-time-zone v0.1.60
[INFO] [stderr]    Compiling serde_derive v1.0.204
[INFO] [stderr]    Compiling openssl-macros v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]    Compiling regex v1.10.5
[INFO] [stderr]    Compiling env_logger v0.10.2
[INFO] [stderr]    Compiling tokio-util v0.7.11
[INFO] [stderr]    Compiling h2 v0.3.26
[INFO] [stderr]    Compiling serde v1.0.204
[INFO] [stderr]    Compiling tokio-native-tls v0.3.1
[INFO] [stderr]    Compiling hyper v0.14.30
[INFO] [stderr]    Compiling serde_urlencoded v0.7.1
[INFO] [stderr]    Compiling serde_json v1.0.120
[INFO] [stderr]    Compiling chrono v0.4.38
[INFO] [stderr]    Compiling hyper-tls v0.5.0
[INFO] [stderr]    Compiling reqwest v0.11.27
[INFO] [stderr]    Compiling rudderanalytics v1.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/utils.rs:256:21
[INFO] [stdout]     |
[INFO] [stdout] 256 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:275:21
[INFO] [stdout]     |
[INFO] [stdout] 275 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:296:21
[INFO] [stdout]     |
[INFO] [stdout] 296 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:317:21
[INFO] [stdout]     |
[INFO] [stdout] 317 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:338:21
[INFO] [stdout]     |
[INFO] [stdout] 338 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:359:21
[INFO] [stdout]     |
[INFO] [stdout] 359 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "52c7555c4f5e02a686423a62bbdbb7935b1e66359101b85146cd30f384e3c0e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52c7555c4f5e02a686423a62bbdbb7935b1e66359101b85146cd30f384e3c0e2", kill_on_drop: false }`
[INFO] [stdout] 52c7555c4f5e02a686423a62bbdbb7935b1e66359101b85146cd30f384e3c0e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d216b1bbb4798d4e7194acca7ffbf506d45f16113b0b8778eb7d1ac38949f41e
[INFO] running `Command { std: "docker" "start" "-a" "d216b1bbb4798d4e7194acca7ffbf506d45f16113b0b8778eb7d1ac38949f41e", kill_on_drop: false }`
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/utils.rs:256:21
[INFO] [stdout]     |
[INFO] [stdout] 256 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:275:21
[INFO] [stdout]     |
[INFO] [stdout] 275 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:296:21
[INFO] [stdout]     |
[INFO] [stdout] 296 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:317:21
[INFO] [stdout]     |
[INFO] [stdout] 317 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:338:21
[INFO] [stdout]     |
[INFO] [stdout] 338 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:359:21
[INFO] [stdout]     |
[INFO] [stdout] 359 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rudderanalytics v1.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/utils.rs:256:21
[INFO] [stdout]     |
[INFO] [stdout] 256 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:275:21
[INFO] [stdout]     |
[INFO] [stdout] 275 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:296:21
[INFO] [stdout]     |
[INFO] [stdout] 296 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:317:21
[INFO] [stdout]     |
[INFO] [stdout] 317 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:338:21
[INFO] [stdout]     |
[INFO] [stdout] 338 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:359:21
[INFO] [stdout]     |
[INFO] [stdout] 359 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[INFO] [stdout]     |                     ----^^^^^^^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.49s
[INFO] running `Command { std: "docker" "inspect" "d216b1bbb4798d4e7194acca7ffbf506d45f16113b0b8778eb7d1ac38949f41e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d216b1bbb4798d4e7194acca7ffbf506d45f16113b0b8778eb7d1ac38949f41e", kill_on_drop: false }`
[INFO] [stdout] d216b1bbb4798d4e7194acca7ffbf506d45f16113b0b8778eb7d1ac38949f41e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ae643a44616727f8aa21104ed12d7098dc94771ef247ac0b7a919a0044b05955
[INFO] running `Command { std: "docker" "start" "-a" "ae643a44616727f8aa21104ed12d7098dc94771ef247ac0b7a919a0044b05955", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/utils.rs:256:21
[INFO] [stderr]     |
[INFO] [stderr] 256 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:275:21
[INFO] [stderr]     |
[INFO] [stderr] 275 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:296:21
[INFO] [stderr]     |
[INFO] [stderr] 296 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:317:21
[INFO] [stderr]     |
[INFO] [stderr] 317 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:338:21
[INFO] [stderr]     |
[INFO] [stderr] 338 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[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/utils.rs:359:21
[INFO] [stderr]     |
[INFO] [stderr] 359 |                 let mut event_context: Value = a_.context.clone().unwrap_or(json!({}));
[INFO] [stderr]     |                     ----^^^^^^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `rudderanalytics` (lib) generated 6 warnings (run `cargo fix --lib -p rudderanalytics` to apply 6 suggestions)
[INFO] [stderr] warning: `rudderanalytics` (lib test) generated 6 warnings (6 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rudderanalytics-2d192473974867dd)
[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] [stderr]      Running tests/events.rs (/opt/rustwide/target/debug/deps/events-05756f1e2cef064f)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::serialize ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rudderanalytics
[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" "ae643a44616727f8aa21104ed12d7098dc94771ef247ac0b7a919a0044b05955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae643a44616727f8aa21104ed12d7098dc94771ef247ac0b7a919a0044b05955", kill_on_drop: false }`
[INFO] [stdout] ae643a44616727f8aa21104ed12d7098dc94771ef247ac0b7a919a0044b05955
