[INFO] fetching crate opentelemetry_api 0.1.0... [INFO] checking opentelemetry_api-0.1.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1 [INFO] extracting crate opentelemetry_api 0.1.0 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate opentelemetry_api 0.1.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd [INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate opentelemetry_api 0.1.0 [INFO] finished tweaking crates.io crate opentelemetry_api 0.1.0 [INFO] tweaked toml for crates.io crate opentelemetry_api 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 0a2d3d01f7fd03ba84fb6339b86c5739d52d6cd6c194559dcf26837611ef28ac [INFO] running `"docker" "start" "-a" "0a2d3d01f7fd03ba84fb6339b86c5739d52d6cd6c194559dcf26837611ef28ac"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking rand v0.6.5 [INFO] [stderr] Checking proptest v0.9.4 [INFO] [stderr] Checking opentelemetry_api v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::borrow::Cow` [INFO] [stderr] --> src/trace/tracer.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::borrow::Cow; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: patterns aren't allowed in methods without bodies [INFO] [stderr] --> src/context/mod.rs:2:14 [INFO] [stderr] | [INFO] [stderr] 2 | fn close(mut self); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(patterns_in_fns_without_body)]` on by default [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #35203 [INFO] [stderr] [INFO] [stderr] warning: unused variable: `measurements` [INFO] [stderr] --> src/metric/meter.rs:177:29 [INFO] [stderr] | [INFO] [stderr] 177 | fn record(&mut self, measurements: I) where I: IntoIterator { [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_measurements` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/metric/measure.rs:92:31 [INFO] [stderr] | [INFO] [stderr] 92 | fn double_measurement<'a>(value: f64) -> Self::Measurement { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/metric/measure.rs:96:29 [INFO] [stderr] | [INFO] [stderr] 96 | fn long_measurement<'a>(value: i64) -> Self::Measurement { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `builder` [INFO] [stderr] --> src/metric/measure.rs:100:14 [INFO] [stderr] | [INFO] [stderr] 100 | fn build(builder: MeasureBuilder) -> Result where Self: Sized { [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_builder` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/metric/measure.rs:78:18 [INFO] [stderr] | [INFO] [stderr] 78 | pub fn build(mut self) -> Result { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/trace/trace_state.rs:79:13 [INFO] [stderr] | [INFO] [stderr] 79 | let mut entries = self.entries.get_or_insert(self.parent.map_or(vec![], |x| x.entries.clone())); [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/trace/trace_state.rs:90:13 [INFO] [stderr] | [INFO] [stderr] 90 | let mut entries = self.entries.get_or_insert(self.parent.map_or(vec![], |x| x.entries.clone())); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::borrow::Cow` [INFO] [stderr] --> src/trace/tracer.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::borrow::Cow; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: patterns aren't allowed in methods without bodies [INFO] [stderr] --> src/context/mod.rs:2:14 [INFO] [stderr] | [INFO] [stderr] 2 | fn close(mut self); [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(patterns_in_fns_without_body)]` on by default [INFO] [stderr] = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! [INFO] [stderr] = note: for more information, see issue #35203 [INFO] [stderr] [INFO] [stderr] warning: unused variable: `measurements` [INFO] [stderr] --> src/metric/meter.rs:177:29 [INFO] [stderr] | [INFO] [stderr] 177 | fn record(&mut self, measurements: I) where I: IntoIterator { [INFO] [stderr] | ^^^^^^^^^^^^ help: consider prefixing with an underscore: `_measurements` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `counter` [INFO] [stderr] --> src/metric/meter.rs:189:13 [INFO] [stderr] | [INFO] [stderr] 189 | let counter = m.counter_long("test").build().unwrap(); [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_counter` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/metric/measure.rs:92:31 [INFO] [stderr] | [INFO] [stderr] 92 | fn double_measurement<'a>(value: f64) -> Self::Measurement { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `value` [INFO] [stderr] --> src/metric/measure.rs:96:29 [INFO] [stderr] | [INFO] [stderr] 96 | fn long_measurement<'a>(value: i64) -> Self::Measurement { [INFO] [stderr] | ^^^^^ help: consider prefixing with an underscore: `_value` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `builder` [INFO] [stderr] --> src/metric/measure.rs:100:14 [INFO] [stderr] | [INFO] [stderr] 100 | fn build(builder: MeasureBuilder) -> Result where Self: Sized { [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_builder` [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/metric/measure.rs:78:18 [INFO] [stderr] | [INFO] [stderr] 78 | pub fn build(mut self) -> Result { [INFO] [stderr] | ----^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/trace/trace_state.rs:79:13 [INFO] [stderr] | [INFO] [stderr] 79 | let mut entries = self.entries.get_or_insert(self.parent.map_or(vec![], |x| x.entries.clone())); [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/trace/trace_state.rs:90:13 [INFO] [stderr] | [INFO] [stderr] 90 | let mut entries = self.entries.get_or_insert(self.parent.map_or(vec![], |x| x.entries.clone())); [INFO] [stderr] | ----^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 13.19s [INFO] running `"docker" "inspect" "0a2d3d01f7fd03ba84fb6339b86c5739d52d6cd6c194559dcf26837611ef28ac"` [INFO] running `"docker" "rm" "-f" "0a2d3d01f7fd03ba84fb6339b86c5739d52d6cd6c194559dcf26837611ef28ac"` [INFO] [stdout] 0a2d3d01f7fd03ba84fb6339b86c5739d52d6cd6c194559dcf26837611ef28ac