[INFO] fetching crate superviseur-core 0.1.0...
[INFO] checking superviseur-core-0.1.0 against try#8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f for pr-114559
[INFO] extracting crate superviseur-core 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate superviseur-core 0.1.0 on toolchain 8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate superviseur-core 0.1.0
[INFO] finished tweaking crates.io crate superviseur-core 0.1.0
[INFO] tweaked toml for crates.io crate superviseur-core 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "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" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a2bf297c7d7008c2da25c30ceb902fc9a44947c99d54104f2f6935bbfda39252
[INFO] running `Command { std: "docker" "start" "-a" "a2bf297c7d7008c2da25c30ceb902fc9a44947c99d54104f2f6935bbfda39252", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a2bf297c7d7008c2da25c30ceb902fc9a44947c99d54104f2f6935bbfda39252", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2bf297c7d7008c2da25c30ceb902fc9a44947c99d54104f2f6935bbfda39252", kill_on_drop: false }`
[INFO] [stdout] a2bf297c7d7008c2da25c30ceb902fc9a44947c99d54104f2f6935bbfda39252
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+8d0c454bea9d9cc2cc7e288388f3b7d1da19c04f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b9374cded9513e80b05f42b705dcb06afccae6513960a2d5f417d8e7b42e08c4
[INFO] running `Command { std: "docker" "start" "-a" "b9374cded9513e80b05f42b705dcb06afccae6513960a2d5f417d8e7b42e08c4", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling tokio v1.29.1
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking parking_lot_core v0.9.8
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking futures-util v0.3.28
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]    Compiling async-trait v0.1.72
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]     Checking ucd-trie v0.1.6
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]     Checking ahash v0.7.6
[INFO] [stderr]     Checking tracing-core v0.1.31
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling pest_meta v2.7.2
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking pest v2.7.2
[INFO] [stderr]    Compiling pin-project-internal v1.1.3
[INFO] [stderr]     Checking deranged v0.3.7
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling serde v1.0.183
[INFO] [stderr]     Checking http v0.2.9
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]    Compiling async-stream-impl v0.3.5
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking local-waker v0.1.3
[INFO] [stderr]    Compiling either v1.9.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking ownedbytes v0.4.0
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling pest_generator v2.7.2
[INFO] [stderr]     Checking time v0.3.25
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]    Compiling aho-corasick v1.0.2
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]    Compiling axum-core v0.3.4
[INFO] [stderr]     Checking async-stream v0.3.5
[INFO] [stderr]    Compiling ahash v0.8.3
[INFO] [stderr]     Checking http-body v0.4.5
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling regex-syntax v0.7.4
[INFO] [stderr]    Compiling ryu v1.0.15
[INFO] [stderr]     Checking tower-layer v0.3.2
[INFO] [stderr]     Checking pin-project v1.1.3
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]     Checking chrono v0.4.26
[INFO] [stderr]     Checking actix-service v2.0.2
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stderr]     Checking tantivy-common v0.4.0
[INFO] [stderr]     Checking actix-utils v3.0.1
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking bytestring v1.3.0
[INFO] [stderr]    Compiling indexmap v2.0.0
[INFO] [stderr]    Compiling axum v0.6.20
[INFO] [stderr]     Checking combine v4.6.6
[INFO] [stderr]     Checking instant v0.1.12
[INFO] [stderr]    Compiling winnow v0.5.4
[INFO] [stderr]    Compiling pest_derive v2.7.2
[INFO] [stderr]     Checking tantivy-bitpacker v0.3.0
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]     Checking utf8-ranges v1.0.5
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking bytecount v0.6.3
[INFO] [stderr]     Checking fastdivide v0.4.0
[INFO] [stderr]     Checking fastfield_codecs v0.3.1
[INFO] [stderr]     Checking papergrid v0.7.1
[INFO] [stderr]     Checking sha1 v0.10.5
[INFO] [stderr]     Checking local-channel v0.1.3
[INFO] [stderr]     Checking measure_time v0.8.2
[INFO] [stderr]     Checking bitpacking v0.8.4
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking num-integer v0.1.45
[INFO] [stderr]     Checking fail v0.5.1
[INFO] [stderr]     Checking lru v0.7.8
[INFO] [stderr]     Checking murmurhash32 v0.2.0
[INFO] [stderr]     Checking uuid v1.4.1
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking vecmap-rs v0.1.11
[INFO] [stderr]     Checking rust-stemmers v1.2.0
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]    Compiling multer v2.1.0
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling rustls v0.20.8
[INFO] [stderr]     Checking webpki v0.22.0
[INFO] [stderr]     Checking levenshtein_automata v0.2.1
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking arc-swap v1.6.0
[INFO] [stderr]     Checking matchit v0.7.2
[INFO] [stderr]    Compiling regex-automata v0.3.6
[INFO] [stderr]     Checking census v0.4.1
[INFO] [stderr]     Checking lz4_flex v0.9.5
[INFO] [stderr]    Compiling serde_json v1.0.104
[INFO] [stderr]     Checking sync_wrapper v0.1.2
[INFO] [stderr]     Checking htmlescape v0.3.1
[INFO] [stderr]     Checking oneshot v0.1.5
[INFO] [stderr]     Checking tantivy-fst v0.4.0
[INFO] [stderr]     Checking language-tags v0.3.2
[INFO] [stderr]     Checking hcl-rs v0.12.3
[INFO] [stderr]    Compiling toml_edit v0.19.14
[INFO] [stderr]     Checking sct v0.7.0
[INFO] [stderr]     Checking actix-router v0.5.1
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking async-graphql-value v5.0.10
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]     Checking tokio-util v0.7.8
[INFO] [stderr]     Checking actix-rt v2.8.0
[INFO] [stderr]     Checking tokio-io-timeout v1.2.0
[INFO] [stderr]     Checking tokio-stream v0.1.14
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling bollard-buildkit-proto v0.1.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking actix-server v2.2.0
[INFO] [stderr]     Checking ascii_utils v0.9.3
[INFO] [stderr]     Checking async-graphql-parser v5.0.10
[INFO] [stderr]     Checking fast_chemail v0.9.6
[INFO] [stderr]     Checking handlebars v4.3.7
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]     Checking h2 v0.3.20
[INFO] [stderr]     Checking actix-codec v0.5.1
[INFO] [stderr]     Checking tower v0.4.13
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling names v0.14.0
[INFO] [stderr]     Checking rustls-native-certs v0.6.3
[INFO] [stderr]    Compiling regex v1.9.3
[INFO] [stderr]     Checking futures-executor v0.3.28
[INFO] [stderr]     Checking num-complex v0.4.3
[INFO] [stderr]     Checking serde_with v2.3.3
[INFO] [stderr]     Checking futures v0.3.28
[INFO] [stderr]     Checking webpki-roots v0.22.6
[INFO] [stderr]     Checking superviseur-util v0.1.0
[INFO] [stderr]     Checking inotify-sys v0.1.5
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking superviseur-macros v0.1.0
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking owo-colors v3.5.0
[INFO] [stderr]     Checking inotify v0.9.6
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]    Compiling async-recursion v1.0.4
[INFO] [stderr]     Checking notify v5.2.0
[INFO] [stderr]     Checking tantivy-query-grammar v0.19.0
[INFO] [stderr]     Checking tokio-rustls v0.23.4
[INFO] [stderr]     Checking tantivy v0.19.2
[INFO] [stderr]    Compiling prost-derive v0.11.9
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling tabled_derive v0.5.0
[INFO] [stderr]    Compiling actix_derive v0.6.0
[INFO] [stderr]    Compiling clap_derive v3.2.25
[INFO] [stderr]    Compiling strum_macros v0.24.3
[INFO] [stderr]     Checking actix v0.13.0
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling async-graphql-derive v5.0.10
[INFO] [stderr]     Checking tabled v0.10.0
[INFO] [stderr]     Checking prost v0.11.9
[INFO] [stderr]     Checking strum v0.24.1
[INFO] [stderr]     Checking spinners v4.1.0
[INFO] [stderr]     Checking prost-types v0.11.9
[INFO] [stderr]     Checking hyper v0.14.27
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking actix-http v3.3.1
[INFO] [stderr]     Checking actix-web v4.3.1
[INFO] [stderr]     Checking superviseur-types v0.1.0
[INFO] [stderr]     Checking hyper-timeout v0.4.1
[INFO] [stderr]     Checking hyper-rustls v0.23.2
[INFO] [stderr]     Checking hyperlocal v0.8.0
[INFO] [stderr]     Checking superviseur-provider v0.1.0
[INFO] [stderr]     Checking superviseur-log v0.1.0
[INFO] [stderr]     Checking actix-web-actors v4.2.0
[INFO] [stderr]     Checking async-graphql v5.0.10
[INFO] [stderr]     Checking tonic v0.8.3
[INFO] [stderr]     Checking bollard-stubs v1.42.0-rc.7
[INFO] [stderr]     Checking async-graphql-actix-web v5.0.10
[INFO] [stderr]     Checking superviseur-graphql v0.1.0
[INFO] [stderr]     Checking bollard v0.14.0
[INFO] [stderr]     Checking superviseur-drivers v0.1.0
[INFO] [stderr]     Checking superviseur-core v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `log::Log`
[INFO] [stdout]   --> src/core.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     log::Log,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::Log`
[INFO] [stdout]   --> src/core.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     log::Log,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/core.rs:439:21
[INFO] [stdout]     |
[INFO] [stdout] 439 |                 let mut process = &mut processes
[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/core.rs:456:21
[INFO] [stdout]     |
[INFO] [stdout] 456 |                 let mut process = &mut processes
[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/core.rs:473:21
[INFO] [stdout]     |
[INFO] [stdout] 473 |                 let mut process = &mut processes
[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/core.rs:505:21
[INFO] [stdout]     |
[INFO] [stdout] 505 |                 let mut process = &mut processes
[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/core.rs:521:21
[INFO] [stdout]     |
[INFO] [stdout] 521 |                 let mut process = &mut processes
[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/core.rs:537:21
[INFO] [stdout]     |
[INFO] [stdout] 537 |                 let mut process = &mut processes
[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/core.rs:553:21
[INFO] [stdout]     |
[INFO] [stdout] 553 |                 let mut process = &mut processes
[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/core.rs:439:21
[INFO] [stdout]     |
[INFO] [stdout] 439 |                 let mut process = &mut processes
[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/core.rs:456:21
[INFO] [stdout]     |
[INFO] [stdout] 456 |                 let mut process = &mut processes
[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/core.rs:473:21
[INFO] [stdout]     |
[INFO] [stdout] 473 |                 let mut process = &mut processes
[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/core.rs:505:21
[INFO] [stdout]     |
[INFO] [stdout] 505 |                 let mut process = &mut processes
[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/core.rs:521:21
[INFO] [stdout]     |
[INFO] [stdout] 521 |                 let mut process = &mut processes
[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/core.rs:537:21
[INFO] [stdout]     |
[INFO] [stdout] 537 |                 let mut process = &mut processes
[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/core.rs:553:21
[INFO] [stdout]     |
[INFO] [stdout] 553 |                 let mut process = &mut processes
[INFO] [stdout]     |                     ----^^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `watcher` is never read
[INFO] [stdout]   --> src/watch.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct WatchForChangesInternal {
[INFO] [stdout]    |        ----------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 37 |     watcher: Box<dyn Watcher>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `watcher` is never read
[INFO] [stdout]   --> src/watch.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 32 | struct WatchForChangesInternal {
[INFO] [stdout]    |        ----------------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 37 |     watcher: Box<dyn Watcher>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.30s
[INFO] running `Command { std: "docker" "inspect" "b9374cded9513e80b05f42b705dcb06afccae6513960a2d5f417d8e7b42e08c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9374cded9513e80b05f42b705dcb06afccae6513960a2d5f417d8e7b42e08c4", kill_on_drop: false }`
[INFO] [stdout] b9374cded9513e80b05f42b705dcb06afccae6513960a2d5f417d8e7b42e08c4
