[INFO] cloning repository https://github.com/OkieOth/rs_observable
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/OkieOth/rs_observable" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOkieOth%2Frs_observable", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOkieOth%2Frs_observable'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fbe48ed995f9e141331f14050dfc0ec234c5620f
[INFO] checking OkieOth/rs_observable against try#ed606620234c6b50f2414162c4bbabd5f4a925f3 for pr-147995
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOkieOth%2Frs_observable" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/OkieOth/rs_observable
[INFO] finished tweaking git repo https://github.com/OkieOth/rs_observable
[INFO] tweaked toml for git repo https://github.com/OkieOth/rs_observable written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/OkieOth/rs_observable on toolchain ed606620234c6b50f2414162c4bbabd5f4a925f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/OkieOth/rs_observable 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" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded env_logger v0.11.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc5b74d745314218043505f6ee279ef28d834148e6c2892cb68fdd3bcb5f79db
[INFO] running `Command { std: "docker" "start" "-a" "dc5b74d745314218043505f6ee279ef28d834148e6c2892cb68fdd3bcb5f79db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc5b74d745314218043505f6ee279ef28d834148e6c2892cb68fdd3bcb5f79db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc5b74d745314218043505f6ee279ef28d834148e6c2892cb68fdd3bcb5f79db", kill_on_drop: false }`
[INFO] [stdout] dc5b74d745314218043505f6ee279ef28d834148e6c2892cb68fdd3bcb5f79db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ed606620234c6b50f2414162c4bbabd5f4a925f3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b92b2f1942a24113c6729cbc29d04d342b0a8961b1cf9b912c8c04bb0c5eee34
[INFO] running `Command { std: "docker" "start" "-a" "b92b2f1942a24113c6729cbc29d04d342b0a8961b1cf9b912c8c04bb0c5eee34", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]     Checking smallvec v1.11.2
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]     Checking linux-raw-sys v0.4.12
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking anstyle-query v1.0.2
[INFO] [stderr]     Checking anstyle-parse v0.2.3
[INFO] [stderr]     Checking anstream v0.6.11
[INFO] [stderr]     Checking parking_lot_core v0.9.9
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking is-terminal v0.4.10
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking env_filter v0.1.0
[INFO] [stderr]     Checking env_logger v0.10.1
[INFO] [stderr]     Checking env_logger v0.11.1
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.35.1
[INFO] [stderr]     Checking rs_observable v0.1.4 (/opt/rustwide/workdir/rs_observable)
[INFO] [stdout] warning: unused import: `crate::observable::Observable`
[INFO] [stdout]    --> rs_observable/src/observed_value.rs:127:13
[INFO] [stdout]     |
[INFO] [stdout] 127 |         use crate::observable::Observable;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> rs_observable/src/chobservable.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |           /// creates a new object
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 44 | /         ChObservable {
[INFO] [stdout] 45 | |             observers: Arc::new(Mutex::new(Vec::new())),
[INFO] [stdout] 46 | |             next_id: 1,
[INFO] [stdout] 47 | |         }
[INFO] [stdout]    | |_________- rustdoc does not generate documentation for expressions
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::observed_value::ObservedValue`
[INFO] [stdout]   --> rs_observable/src/observed_value.rs:79:9
[INFO] [stdout]    |
[INFO] [stdout] 79 |     use crate::observed_value::ObservedValue;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> rs_observable/src/chobservable.rs:43:9
[INFO] [stdout]    |
[INFO] [stdout] 43 |           /// creates a new object
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 44 | /         ChObservable {
[INFO] [stdout] 45 | |             observers: Arc::new(Mutex::new(Vec::new())),
[INFO] [stdout] 46 | |             next_id: 1,
[INFO] [stdout] 47 | |         }
[INFO] [stdout]    | |_________- rustdoc does not generate documentation for expressions
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `notify` is never used
[INFO] [stdout]   --> rs_observable/src/observable.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub trait Observer<T: Clone> {
[INFO] [stdout]    |           -------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 10 |     fn notify(&mut self, data: T);
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `StoredObserver` is never constructed
[INFO] [stdout]   --> rs_observable/src/observable.rs:13:8
[INFO] [stdout]    |
[INFO] [stdout] 13 | struct StoredObserver<T: Clone> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> rs_observable/src/observable.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl<T: Clone> StoredObserver<T> {
[INFO] [stdout]    | -------------------------------- associated function in this implementation
[INFO] [stdout] 19 |     pub fn new(id: u32, observer: Rc<RefCell<dyn Observer<T> + Send + Sync>>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Observable` is never constructed
[INFO] [stdout]   --> rs_observable/src/observable.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct Observable<T: Clone> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `register`, `unregister`, `notify_observers`, and `notify_observers_borrowed` are never used
[INFO] [stdout]   --> rs_observable/src/observable.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl<T: Clone> Observable<T> {
[INFO] [stdout]    | ---------------------------- associated items in this implementation
[INFO] [stdout] 36 |     /// Creates a new Observable object
[INFO] [stdout] 37 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |     pub fn register(&mut self, observer: Rc<RefCell<dyn Observer<T> + Send + Sync>>) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 62 |     pub fn unregister(&mut self, observer_id: u32) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     pub fn notify_observers(&self, data: T) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 91 |     pub fn notify_observers_borrowed(&self, data: &T) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ObservedValue` is never constructed
[INFO] [stdout]  --> rs_observable/src/observed_value.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct ObservedValue<T: Clone> {
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `set_value`, `reset_value`, `register`, and `unregister` are never used
[INFO] [stdout]   --> rs_observable/src/observed_value.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<T: Clone> ObservedValue<T> {
[INFO] [stdout]    | ------------------------------- associated items in this implementation
[INFO] [stdout] 15 |     /// Create a new instance
[INFO] [stdout] 16 |     pub fn new() -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 29 |     pub fn set_value(&mut self, v: &T) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub fn reset_value(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 48 |     pub fn register(&mut self, observer: Rc<RefCell<dyn Observer<Option<T>> + Send + Sync>>) -> u32 {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 57 |     pub fn unregister(&mut self, observer_id: u32) {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyString` is never constructed
[INFO] [stdout]   --> rs_observable/src/observed_value.rs:83:12
[INFO] [stdout]    |
[INFO] [stdout] 83 |     struct MyString(String);
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> rs_observable/src/observed_value.rs:86:16
[INFO] [stdout]    |
[INFO] [stdout] 85 |     impl MyString {
[INFO] [stdout]    |     ------------- associated function in this implementation
[INFO] [stdout] 86 |         pub fn new(v: &str) -> MyString {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ObserverString` is never constructed
[INFO] [stdout]    --> rs_observable/src/observed_value.rs:103:12
[INFO] [stdout]     |
[INFO] [stdout] 103 |     struct ObserverString {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> rs_observable/src/observed_value.rs:108:16
[INFO] [stdout]     |
[INFO] [stdout] 107 |     impl ObserverString {
[INFO] [stdout]     |     ------------------- associated function in this implementation
[INFO] [stdout] 108 |         pub fn new() -> Self {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tokio_test v0.1.0 (/opt/rustwide/workdir/examples/tokio_test)
[INFO] [stdout] warning: method `notify_observers_borrowed` is never used
[INFO] [stdout]   --> rs_observable/src/observable.rs:91:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl<T: Clone> Observable<T> {
[INFO] [stdout]    | ---------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 91 |     pub fn notify_observers_borrowed(&self, data: &T) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.40s
[INFO] running `Command { std: "docker" "inspect" "b92b2f1942a24113c6729cbc29d04d342b0a8961b1cf9b912c8c04bb0c5eee34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b92b2f1942a24113c6729cbc29d04d342b0a8961b1cf9b912c8c04bb0c5eee34", kill_on_drop: false }`
[INFO] [stdout] b92b2f1942a24113c6729cbc29d04d342b0a8961b1cf9b912c8c04bb0c5eee34
