[INFO] fetching crate event-emitter-rs 0.1.4... [INFO] checking event-emitter-rs-0.1.4 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] extracting crate event-emitter-rs 0.1.4 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate event-emitter-rs 0.1.4 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate event-emitter-rs 0.1.4 [INFO] finished tweaking crates.io crate event-emitter-rs 0.1.4 [INFO] tweaked toml for crates.io crate event-emitter-rs 0.1.4 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 14 packages [INFO] [stderr] Adding uuid v0.8.2 (latest: v1.8.0) [INFO] [stderr] Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 11e49870d4ed755a717a0abcc908e7ccefabd270257db302cd99e740d98b7301 [INFO] running `Command { std: "docker" "start" "-a" "11e49870d4ed755a717a0abcc908e7ccefabd270257db302cd99e740d98b7301", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "11e49870d4ed755a717a0abcc908e7ccefabd270257db302cd99e740d98b7301", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "11e49870d4ed755a717a0abcc908e7ccefabd270257db302cd99e740d98b7301", kill_on_drop: false }` [INFO] [stdout] 11e49870d4ed755a717a0abcc908e7ccefabd270257db302cd99e740d98b7301 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 059bb7e01656951d1e7b26324647e6b900bceb5bab00abdbec2fd18a576accff [INFO] running `Command { std: "docker" "start" "-a" "059bb7e01656951d1e7b26324647e6b900bceb5bab00abdbec2fd18a576accff", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Checking bincode v1.3.3 [INFO] [stderr] Checking getrandom v0.2.12 [INFO] [stderr] Checking uuid v0.8.2 [INFO] [stderr] Checking event-emitter-rs v0.1.4 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::EventEmitter` [INFO] [stdout] --> src/tests.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use crate::EventEmitter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module [INFO] [stdout] --> src/lib.rs:115:1 [INFO] [stdout] | [INFO] [stdout] 115 | mod tests; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Deserialize`, `Serialize` [INFO] [stdout] --> src/tests.rs:2:13 [INFO] [stdout] | [INFO] [stdout] 2 | use serde::{Deserialize, Serialize}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module [INFO] [stdout] --> src/lib.rs:115:1 [INFO] [stdout] | [INFO] [stdout] 115 | mod tests; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `Mutex` [INFO] [stdout] --> src/tests.rs:3:17 [INFO] [stdout] | [INFO] [stdout] 3 | use std::sync::{Mutex, Arc}; [INFO] [stdout] | ^^^^^ ^^^ [INFO] [stdout] | [INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module [INFO] [stdout] --> src/lib.rs:115:1 [INFO] [stdout] | [INFO] [stdout] 115 | mod tests; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `bincode` is imported redundantly [INFO] [stdout] --> src/lib.rs:125:5 [INFO] [stdout] | [INFO] [stdout] 125 | use bincode; [INFO] [stdout] | ^^^^^^^ the item `bincode` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Deserialize`, `Serialize` [INFO] [stdout] --> src/tests.rs:2:13 [INFO] [stdout] | [INFO] [stdout] 2 | use serde::{Deserialize, Serialize}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: the item `bincode` is imported redundantly [INFO] [stdout] --> src/lib.rs:125:5 [INFO] [stdout] | [INFO] [stdout] 125 | use bincode; [INFO] [stdout] | ^^^^^^^ the item `bincode` is already defined by prelude [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `event` [INFO] [stdout] --> src/lib.rs:331:32 [INFO] [stdout] | [INFO] [stdout] 331 | pub fn sync_emit(&self, event: &str, value: T) [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_event` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/lib.rs:331:45 [INFO] [stdout] | [INFO] [stdout] 331 | pub fn sync_emit(&self, event: &str, value: T) [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tests.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | let mut counter: Arc> = Arc::new(Mutex::new(5)); [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/tests.rs:30:9 [INFO] [stdout] | [INFO] [stdout] 30 | let mut container: Arc> = Arc::new(Mutex::new(Container { list: Vec::new() })); [INFO] [stdout] | ----^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/tests.rs:78:9 [INFO] [stdout] | [INFO] [stdout] 78 | let mut counter: Arc> = Arc::new(Mutex::new(5)); [INFO] [stdout] | ----^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `event` [INFO] [stdout] --> src/lib.rs:331:32 [INFO] [stdout] | [INFO] [stdout] 331 | pub fn sync_emit(&self, event: &str, value: T) [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_event` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `value` [INFO] [stdout] --> src/lib.rs:331:45 [INFO] [stdout] | [INFO] [stdout] 331 | pub fn sync_emit(&self, event: &str, value: T) [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_value` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tests.rs:17:9 [INFO] [stdout] | [INFO] [stdout] 17 | callback.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 17 | let _ = callback.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/tests.rs:40:9 [INFO] [stdout] | [INFO] [stdout] 40 | callback.join(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 40 | let _ = callback.join(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 9 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.73s [INFO] running `Command { std: "docker" "inspect" "059bb7e01656951d1e7b26324647e6b900bceb5bab00abdbec2fd18a576accff", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "059bb7e01656951d1e7b26324647e6b900bceb5bab00abdbec2fd18a576accff", kill_on_drop: false }` [INFO] [stdout] 059bb7e01656951d1e7b26324647e6b900bceb5bab00abdbec2fd18a576accff