[INFO] fetching crate rs_observable 0.1.4... [INFO] checking rs_observable-0.1.4 against master#8a703520e80d87d4423c01f9d4fbc9e5f6533a02 for pr-154205-1 [INFO] extracting crate rs_observable 0.1.4 into /workspace/builds/worker-1-tc1/source [INFO] started tweaking crates.io crate rs_observable 0.1.4 [INFO] finished tweaking crates.io crate rs_observable 0.1.4 [INFO] tweaked toml for crates.io crate rs_observable 0.1.4 written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate rs_observable 0.1.4 on toolchain 8a703520e80d87d4423c01f9d4fbc9e5f6533a02 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 47 packages to latest compatible versions [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded env_logger v0.11.10 [INFO] [stderr] Downloaded portable-atomic-util v0.2.6 [INFO] [stderr] Downloaded env_filter v1.0.1 [INFO] [stderr] Downloaded jiff-static v0.2.23 [INFO] [stderr] Downloaded portable-atomic v1.13.1 [INFO] [stderr] Downloaded jiff v0.2.23 [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7d9d887cbc532c62b919c5b49a28f1f7a0597aae03467267a7a56aaf6939459a [INFO] running `Command { std: "docker" "start" "-a" "7d9d887cbc532c62b919c5b49a28f1f7a0597aae03467267a7a56aaf6939459a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7d9d887cbc532c62b919c5b49a28f1f7a0597aae03467267a7a56aaf6939459a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7d9d887cbc532c62b919c5b49a28f1f7a0597aae03467267a7a56aaf6939459a", kill_on_drop: false }` [INFO] [stdout] 7d9d887cbc532c62b919c5b49a28f1f7a0597aae03467267a7a56aaf6939459a [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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b8168ab50f10f91d6b66950b33feca51b2a3333d9891af359aca6bc377268496 [INFO] running `Command { std: "docker" "start" "-a" "b8168ab50f10f91d6b66950b33feca51b2a3333d9891af359aca6bc377268496", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.183 [INFO] [stderr] Compiling parking_lot_core v0.9.12 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Checking smallvec v1.15.1 [INFO] [stderr] Checking regex-syntax v0.8.10 [INFO] [stderr] Checking log v0.4.29 [INFO] [stderr] Checking utf8parse v0.2.2 [INFO] [stderr] Checking bytes v1.11.1 [INFO] [stderr] Checking anstyle v1.0.14 [INFO] [stderr] Checking anstyle-query v1.1.5 [INFO] [stderr] Checking is_terminal_polyfill v1.70.2 [INFO] [stderr] Checking colorchoice v1.0.5 [INFO] [stderr] Checking jiff v0.2.23 [INFO] [stderr] Compiling syn v2.0.117 [INFO] [stderr] Checking lock_api v0.4.14 [INFO] [stderr] Checking anstyle-parse v1.0.0 [INFO] [stderr] Checking anstream v1.0.0 [INFO] [stderr] Checking regex-automata v0.4.14 [INFO] [stderr] Checking errno v0.3.14 [INFO] [stderr] Checking socket2 v0.6.3 [INFO] [stderr] Checking mio v1.1.1 [INFO] [stderr] Checking signal-hook-registry v1.4.8 [INFO] [stderr] Checking parking_lot v0.12.5 [INFO] [stderr] Checking regex v1.12.3 [INFO] [stderr] Compiling tokio-macros v2.6.1 [INFO] [stderr] Checking env_filter v1.0.1 [INFO] [stderr] Checking env_logger v0.11.10 [INFO] [stderr] Checking tokio v1.50.0 [INFO] [stderr] Checking rs_observable v0.1.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::observed_value::ObservedValue` [INFO] [stdout] --> 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] --> 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::observable::Observable` [INFO] [stdout] --> 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] --> 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] --> src/observable.rs:10:8 [INFO] [stdout] | [INFO] [stdout] 7 | pub trait Observer { [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] --> src/observable.rs:13:8 [INFO] [stdout] | [INFO] [stdout] 13 | struct StoredObserver { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/observable.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 18 | impl StoredObserver { [INFO] [stdout] | -------------------------------- associated function in this implementation [INFO] [stdout] 19 | pub fn new(id: u32, observer: Rc + Send + Sync>>) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Observable` is never constructed [INFO] [stdout] --> src/observable.rs:28:12 [INFO] [stdout] | [INFO] [stdout] 28 | pub struct Observable { [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] --> src/observable.rs:37:12 [INFO] [stdout] | [INFO] [stdout] 35 | impl Observable { [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 + 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] --> src/observed_value.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct ObservedValue { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `set_value`, `reset_value`, `register`, and `unregister` are never used [INFO] [stdout] --> src/observed_value.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl ObservedValue { [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> + 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] --> 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] --> 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] --> 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] --> 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] [stdout] warning: method `notify_observers_borrowed` is never used [INFO] [stdout] --> src/observable.rs:91:12 [INFO] [stdout] | [INFO] [stdout] 35 | impl Observable { [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 10.00s [INFO] running `Command { std: "docker" "inspect" "b8168ab50f10f91d6b66950b33feca51b2a3333d9891af359aca6bc377268496", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b8168ab50f10f91d6b66950b33feca51b2a3333d9891af359aca6bc377268496", kill_on_drop: false }` [INFO] [stdout] b8168ab50f10f91d6b66950b33feca51b2a3333d9891af359aca6bc377268496