[INFO] fetching crate optimistic_lock_coupling 0.2.5... [INFO] checking optimistic_lock_coupling-0.2.5 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never [INFO] extracting crate optimistic_lock_coupling 0.2.5 into /workspace/builds/worker-7-tc1/source [INFO] validating manifest of crates.io crate optimistic_lock_coupling 0.2.5 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate optimistic_lock_coupling 0.2.5 [INFO] finished tweaking crates.io crate optimistic_lock_coupling 0.2.5 [INFO] tweaked toml for crates.io crate optimistic_lock_coupling 0.2.5 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 61 packages [INFO] [stderr] Adding bitflags v1.3.2 (latest: v2.5.0) [INFO] [stderr] Adding clap v2.34.0 (latest: v4.5.4) [INFO] [stderr] Adding criterion v0.3.6 (latest: v0.5.1) [INFO] [stderr] Adding criterion-plot v0.4.5 (latest: v0.5.0) [INFO] [stderr] Adding half v1.8.3 (latest: v2.4.0) [INFO] [stderr] Adding hermit-abi v0.1.19 (latest: v0.3.9) [INFO] [stderr] Adding itertools v0.10.5 (latest: v0.12.1) [INFO] [stderr] Adding textwrap v0.11.0 (latest: v0.16.1) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 842bf8a6b3e98f3a5fa15910abebc106cfda141cf0a23e5d90c1e0b8ca59d556 [INFO] running `Command { std: "docker" "start" "-a" "842bf8a6b3e98f3a5fa15910abebc106cfda141cf0a23e5d90c1e0b8ca59d556", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "842bf8a6b3e98f3a5fa15910abebc106cfda141cf0a23e5d90c1e0b8ca59d556", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "842bf8a6b3e98f3a5fa15910abebc106cfda141cf0a23e5d90c1e0b8ca59d556", kill_on_drop: false }` [INFO] [stdout] 842bf8a6b3e98f3a5fa15910abebc106cfda141cf0a23e5d90c1e0b8ca59d556 [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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 07060b31601ef47aea09fb9854add1ebfb6fa4039fee1176851dc89462433d5d [INFO] running `Command { std: "docker" "start" "-a" "07060b31601ef47aea09fb9854add1ebfb6fa4039fee1176851dc89462433d5d", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Compiling libc v0.2.153 [INFO] [stderr] Compiling num-traits v0.2.18 [INFO] [stderr] Checking either v1.10.0 [INFO] [stderr] Checking regex-syntax v0.8.3 [INFO] [stderr] Checking plotters-backend v0.3.5 [INFO] [stderr] Checking memchr v2.7.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling syn v2.0.58 [INFO] [stderr] Checking plotters-svg v0.3.5 [INFO] [stderr] Checking half v1.8.3 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking cast v0.3.0 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Checking rayon v1.10.0 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking regex-automata v0.4.6 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking optimistic_lock_coupling v0.2.5 (/opt/rustwide/workdir) [INFO] [stderr] Checking criterion-plot v0.4.5 [INFO] [stderr] Checking plotters v0.3.5 [INFO] [stderr] Checking regex v1.10.4 [INFO] [stderr] Checking serde_json v1.0.115 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Compiling serde_derive v1.0.197 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking criterion v0.3.6 [INFO] [stdout] warning: unused imports: `BenchmarkId`, `ParameterizedBenchmark` [INFO] [stdout] --> benches/benchmarks/compare_heavy_read.rs:1:34 [INFO] [stdout] | [INFO] [stdout] 1 | use criterion::{criterion_group, BenchmarkId, Criterion, Fun, ParameterizedBenchmark}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BenchmarkId`, `ParameterizedBenchmark` [INFO] [stdout] --> benches/benchmarks/compare_heavy_write.rs:1:34 [INFO] [stdout] | [INFO] [stdout] 1 | use criterion::{criterion_group, BenchmarkId, Criterion, Fun, ParameterizedBenchmark}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BenchmarkId`, `ParameterizedBenchmark` [INFO] [stdout] --> benches/benchmarks/compare_read_only.rs:1:34 [INFO] [stdout] | [INFO] [stdout] 1 | use criterion::{criterion_group, BenchmarkId, Criterion, Fun, ParameterizedBenchmark}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BenchmarkId`, `ParameterizedBenchmark` [INFO] [stdout] --> benches/benchmarks/compare_write_only.rs:1:34 [INFO] [stdout] | [INFO] [stdout] 1 | use criterion::{criterion_group, BenchmarkId, Criterion, Fun, ParameterizedBenchmark}; [INFO] [stdout] | ^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `RwLock` [INFO] [stdout] --> benches/benchmarks/mod.rs:7:29 [INFO] [stdout] | [INFO] [stdout] 7 | use std::sync::{Arc, Mutex, RwLock}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated function `std::thread::sleep_ms`: replaced by `std::thread::sleep` [INFO] [stdout] --> src/test.rs:63:18 [INFO] [stdout] | [INFO] [stdout] 63 | std::thread::sleep_ms(5000); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> src/test.rs:44:27 [INFO] [stdout] | [INFO] [stdout] 44 | match (&lock).as_ref().unwrap().write() { [INFO] [stdout] | ^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see issue #114447 [INFO] [stdout] = note: this will be a hard error in the 2024 edition [INFO] [stdout] = note: this shared reference has lifetime `'static`, but if the static ever gets mutated, or a mutable reference is created, then any further use of this shared reference is Undefined Behavior [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] help: use `addr_of!` instead to create a raw pointer [INFO] [stdout] | [INFO] [stdout] 44 | match addr_of!(lock).as_ref().unwrap().write() { [INFO] [stdout] | ~~~~~~~~~~~~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `lock` should have an upper case name [INFO] [stdout] --> benches/benchmarks/compare_heavy_read.rs:7:16 [INFO] [stdout] | [INFO] [stdout] 7 | static mut lock: Option = None; [INFO] [stdout] | ^^^^ help: convert the identifier to upper case: `LOCK` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `lock` should have an upper case name [INFO] [stdout] --> benches/benchmarks/compare_heavy_read.rs:43:16 [INFO] [stdout] | [INFO] [stdout] 43 | static mut lock: Option = None; [INFO] [stdout] | ^^^^ help: convert the identifier to upper case: `LOCK` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `lock` should have an upper case name [INFO] [stdout] --> benches/benchmarks/compare_heavy_write.rs:7:16 [INFO] [stdout] | [INFO] [stdout] 7 | static mut lock: Option = None; [INFO] [stdout] | ^^^^ help: convert the identifier to upper case: `LOCK` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `lock` should have an upper case name [INFO] [stdout] --> benches/benchmarks/compare_heavy_write.rs:43:16 [INFO] [stdout] | [INFO] [stdout] 43 | static mut lock: Option = None; [INFO] [stdout] | ^^^^ help: convert the identifier to upper case: `LOCK` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `lock` should have an upper case name [INFO] [stdout] --> benches/benchmarks/compare_read_only.rs:7:16 [INFO] [stdout] | [INFO] [stdout] 7 | static mut lock: Option = None; [INFO] [stdout] | ^^^^ help: convert the identifier to upper case: `LOCK` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `lock` should have an upper case name [INFO] [stdout] --> benches/benchmarks/compare_read_only.rs:34:16 [INFO] [stdout] | [INFO] [stdout] 34 | static mut lock: Option = None; [INFO] [stdout] | ^^^^ help: convert the identifier to upper case: `LOCK` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `lock` should have an upper case name [INFO] [stdout] --> benches/benchmarks/compare_write_only.rs:7:16 [INFO] [stdout] | [INFO] [stdout] 7 | static mut lock: Option = None; [INFO] [stdout] | ^^^^ help: convert the identifier to upper case: `LOCK` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `lock` should have an upper case name [INFO] [stdout] --> benches/benchmarks/compare_write_only.rs:31:16 [INFO] [stdout] | [INFO] [stdout] 31 | static mut lock: Option = None; [INFO] [stdout] | ^^^^ help: convert the identifier to upper case: `LOCK` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: static variable `lock` should have an upper case name [INFO] [stdout] --> src/test.rs:37:16 [INFO] [stdout] | [INFO] [stdout] 37 | static mut lock: Option> = None; [INFO] [stdout] | ^^^^ help: convert the identifier to upper case: `LOCK` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_upper_case_globals)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 13 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.31s [INFO] running `Command { std: "docker" "inspect" "07060b31601ef47aea09fb9854add1ebfb6fa4039fee1176851dc89462433d5d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "07060b31601ef47aea09fb9854add1ebfb6fa4039fee1176851dc89462433d5d", kill_on_drop: false }` [INFO] [stdout] 07060b31601ef47aea09fb9854add1ebfb6fa4039fee1176851dc89462433d5d