[INFO] cloning repository https://github.com/LemonHX/optimistic_lock_coupling_rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LemonHX/optimistic_lock_coupling_rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLemonHX%2Foptimistic_lock_coupling_rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLemonHX%2Foptimistic_lock_coupling_rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1265a873371e39cd99818573cd94117ea3db66da [INFO] checking LemonHX/optimistic_lock_coupling_rs/1265a873371e39cd99818573cd94117ea3db66da against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLemonHX%2Foptimistic_lock_coupling_rs" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LemonHX/optimistic_lock_coupling_rs on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/LemonHX/optimistic_lock_coupling_rs [INFO] finished tweaking git repo https://github.com/LemonHX/optimistic_lock_coupling_rs [INFO] tweaked toml for git repo https://github.com/LemonHX/optimistic_lock_coupling_rs written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/LemonHX/optimistic_lock_coupling_rs 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded cast v0.2.4 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] f389289117706f98ac9c746a6357d755c9fe710b1c4274a677789973f765aa37 [INFO] running `Command { std: "docker" "start" "-a" "f389289117706f98ac9c746a6357d755c9fe710b1c4274a677789973f765aa37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "f389289117706f98ac9c746a6357d755c9fe710b1c4274a677789973f765aa37", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f389289117706f98ac9c746a6357d755c9fe710b1c4274a677789973f765aa37", kill_on_drop: false }` [INFO] [stdout] f389289117706f98ac9c746a6357d755c9fe710b1c4274a677789973f765aa37 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f2128e61e7d372f59c9c58ddd06c81d776017c2c2803c834e528ac3c6618bb78 [INFO] running `Command { std: "docker" "start" "-a" "f2128e61e7d372f59c9c58ddd06c81d776017c2c2803c834e528ac3c6618bb78", kill_on_drop: false }` [INFO] [stderr] Compiling autocfg v1.0.1 [INFO] [stderr] Compiling serde v1.0.125 [INFO] [stderr] Compiling libc v0.2.93 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling proc-macro2 v1.0.26 [INFO] [stderr] Compiling memchr v2.3.4 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling rayon-core v1.9.0 [INFO] [stderr] Checking either v1.6.1 [INFO] [stderr] Compiling syn v1.0.69 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking byteorder v1.4.3 [INFO] [stderr] Compiling crossbeam-utils v0.8.3 [INFO] [stderr] Compiling memoffset v0.6.3 [INFO] [stderr] Compiling cast v0.2.4 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking regex-automata v0.1.9 [INFO] [stderr] Compiling rayon v1.5.0 [INFO] [stderr] Checking num_cpus v1.13.0 [INFO] [stderr] Compiling serde_derive v1.0.125 [INFO] [stderr] Checking plotters-backend v0.3.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking plotters-svg v0.3.0 [INFO] [stderr] Checking csv-core v0.1.10 [INFO] [stderr] Checking itertools v0.9.0 [INFO] [stderr] Checking crossbeam-epoch v0.9.3 [INFO] [stderr] Checking crossbeam-channel v0.5.1 [INFO] [stderr] Checking regex-syntax v0.6.23 [INFO] [stderr] Checking half v1.7.1 [INFO] [stderr] Checking crossbeam-deque v0.8.0 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking itertools v0.10.0 [INFO] [stderr] Checking plotters v0.3.0 [INFO] [stderr] Checking criterion-plot v0.4.3 [INFO] [stderr] Checking regex v1.4.5 [INFO] [stderr] Checking oorandom v11.1.3 [INFO] [stderr] Checking optimistic_lock_coupling v0.2.5 (/opt/rustwide/workdir) [INFO] [stderr] Checking bstr v0.2.15 [INFO] [stderr] Checking serde_cbor v0.11.1 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking csv v1.1.6 [INFO] [stderr] Checking criterion v0.3.4 [INFO] [stdout] warning: unused imports: `BenchmarkId` and `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` and `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` and `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` and `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: 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: 13 warnings emitted [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: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.00s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.4 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "f2128e61e7d372f59c9c58ddd06c81d776017c2c2803c834e528ac3c6618bb78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f2128e61e7d372f59c9c58ddd06c81d776017c2c2803c834e528ac3c6618bb78", kill_on_drop: false }` [INFO] [stdout] f2128e61e7d372f59c9c58ddd06c81d776017c2c2803c834e528ac3c6618bb78