[INFO] fetching crate smolscale 0.4.16... [INFO] checking smolscale-0.4.16 against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3 [INFO] extracting crate smolscale 0.4.16 into /workspace/builds/worker-0-tc1/source [INFO] started tweaking crates.io crate smolscale 0.4.16 [INFO] removed 0 missing examples [INFO] finished tweaking crates.io crate smolscale 0.4.16 [INFO] tweaked toml for crates.io crate smolscale 0.4.16 written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate smolscale 0.4.16 on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate smolscale 0.4.16 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded parking v2.1.1 [INFO] [stderr] Downloaded async-oneshot v0.4.2 [INFO] [stderr] Downloaded tabwriter v1.3.0 [INFO] [stderr] Downloaded cache-padded v1.3.0 [INFO] [stderr] Downloaded futures-micro v0.3.1 [INFO] [stderr] Downloaded async-task v4.4.1 [INFO] [stderr] Downloaded async-compat v0.2.3 [INFO] [stderr] Downloaded hermit-abi v0.4.0 [INFO] [stderr] Downloaded st3 v0.4.1 [INFO] [stderr] Downloaded async-event v0.2.1 [INFO] [stderr] Downloaded futures-lite v2.6.0 [INFO] [stderr] Downloaded async-io v2.4.0 [INFO] [stderr] Downloaded polling v3.7.4 [INFO] [stderr] Downloaded tracing v0.1.39 [INFO] [stderr] Downloaded async-executor v1.5.4 [INFO] [stderr] Downloaded regex v1.10.1 [INFO] [stderr] Downloaded rustix v0.37.25 [INFO] [stderr] Downloaded regex-automata v0.4.2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 1a9f8c48a7e780b01a94459c025feeceae195d329c0dab3160aee1b0d880179d [INFO] running `Command { std: "docker" "start" "-a" "1a9f8c48a7e780b01a94459c025feeceae195d329c0dab3160aee1b0d880179d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1a9f8c48a7e780b01a94459c025feeceae195d329c0dab3160aee1b0d880179d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1a9f8c48a7e780b01a94459c025feeceae195d329c0dab3160aee1b0d880179d", kill_on_drop: false }` [INFO] [stdout] 1a9f8c48a7e780b01a94459c025feeceae195d329c0dab3160aee1b0d880179d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c509780be150318461422c4b8d33ff81fc83cba5735ebc22cc84003c7c1a94f2 [INFO] running `Command { std: "docker" "start" "-a" "c509780be150318461422c4b8d33ff81fc83cba5735ebc22cc84003c7c1a94f2", kill_on_drop: false }` [INFO] [stderr] Compiling crossbeam-utils v0.8.20 [INFO] [stderr] Compiling futures-core v0.3.28 [INFO] [stderr] Checking parking v2.1.1 [INFO] [stderr] Checking futures-io v0.3.28 [INFO] [stderr] Checking scopeguard v1.2.0 [INFO] [stderr] Compiling libc v0.2.169 [INFO] [stderr] Compiling serde v1.0.189 [INFO] [stderr] Checking tracing v0.1.39 [INFO] [stderr] Compiling lock_api v0.4.10 [INFO] [stderr] Compiling rustix v0.38.44 [INFO] [stderr] Compiling syn v2.0.38 [INFO] [stderr] Compiling rustix v0.37.25 [INFO] [stderr] Compiling parking_lot_core v0.9.8 [INFO] [stderr] Checking aho-corasick v1.1.2 [INFO] [stderr] Compiling serde_json v1.0.107 [INFO] [stderr] Checking async-task v4.4.1 [INFO] [stderr] Checking bitflags v2.8.0 [INFO] [stderr] Compiling futures-task v0.3.28 [INFO] [stderr] Checking ryu v1.0.15 [INFO] [stderr] Checking linux-raw-sys v0.4.15 [INFO] [stderr] Checking piper v0.2.1 [INFO] [stderr] Checking gimli v0.28.0 [INFO] [stderr] Compiling futures-util v0.3.28 [INFO] [stderr] Checking futures-lite v1.13.0 [INFO] [stderr] Checking plotters-backend v0.3.5 [INFO] [stderr] Compiling crossbeam-queue v0.3.8 [INFO] [stderr] Checking futures-lite v2.6.0 [INFO] [stderr] Checking miniz_oxide v0.7.1 [INFO] [stderr] Checking itertools v0.10.5 [INFO] [stderr] Checking plotters-svg v0.3.5 [INFO] [stderr] Checking object v0.32.1 [INFO] [stderr] Checking tokio v1.33.0 [INFO] [stderr] Checking concurrent-queue v2.3.0 [INFO] [stderr] Checking crossbeam-epoch v0.9.15 [INFO] [stderr] Checking csv-core v0.1.11 [INFO] [stderr] Checking hashbrown v0.14.1 [INFO] [stderr] Checking io-lifetimes v1.0.11 [INFO] [stderr] Checking polling v2.8.0 [INFO] [stderr] Checking event-listener v5.2.0 [INFO] [stderr] Checking crossbeam-deque v0.8.3 [INFO] [stderr] Checking async-channel v1.9.0 [INFO] [stderr] Compiling cc v1.0.83 [INFO] [stderr] Checking socket2 v0.4.9 [INFO] [stderr] Checking blocking v1.4.1 [INFO] [stderr] Checking regex-automata v0.4.2 [INFO] [stderr] Checking rayon-core v1.12.0 [INFO] [stderr] Checking async-executor v1.5.4 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking event-listener-strategy v0.5.3 [INFO] [stderr] Checking dashmap v5.5.3 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking async-lock v3.4.0 [INFO] [stderr] Checking walkdir v2.4.0 [INFO] [stderr] Checking st3 v0.4.1 [INFO] [stderr] Checking async-compat v0.2.3 [INFO] [stderr] Checking rayon v1.8.0 [INFO] [stderr] Checking plotters v0.3.5 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking thread_local v1.1.7 [INFO] [stderr] Checking tabwriter v1.3.0 [INFO] [stderr] Checking async-event v0.2.1 [INFO] [stderr] Checking termcolor v1.3.0 [INFO] [stderr] Checking cache-padded v1.3.0 [INFO] [stderr] Checking futures-micro v0.3.1 [INFO] [stderr] Checking criterion-plot v0.4.5 [INFO] [stderr] Checking async-oneshot v0.4.2 [INFO] [stderr] Checking addr2line v0.21.0 [INFO] [stderr] Compiling backtrace v0.3.69 [INFO] [stderr] Compiling futures-macro v0.3.28 [INFO] [stderr] Compiling serde_derive v1.0.189 [INFO] [stderr] Checking async-io v1.13.0 [INFO] [stderr] Checking regex v1.10.1 [INFO] [stderr] Checking async-global-executor v2.3.1 [INFO] [stderr] Checking env_logger v0.9.3 [INFO] [stderr] Checking serde_cbor v0.11.2 [INFO] [stderr] Checking csv v1.3.0 [INFO] [stderr] Checking tinytemplate v1.2.1 [INFO] [stderr] Checking polling v3.7.4 [INFO] [stderr] Checking criterion v0.3.6 [INFO] [stderr] Checking async-io v2.4.0 [INFO] [stderr] Checking smolscale v0.4.16 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `backtrace::Backtrace` [INFO] [stdout] --> src/lib.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use backtrace::Backtrace; [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 import: `dashmap::DashMap` [INFO] [stdout] --> src/lib.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use dashmap::DashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `fastcounter::FastCounter` [INFO] [stdout] --> src/lib.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use fastcounter::FastCounter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Write` [INFO] [stdout] --> src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | use std::io::Write; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `AtomicU64`, `Context`, `Instant`, `Poll`, `io::stderr`, and `pin::Pin` [INFO] [stdout] --> src/lib.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | io::stderr, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 20 | pin::Pin, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | atomic::{AtomicBool, AtomicU64, Ordering}, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 24 | Arc, [INFO] [stdout] | ^^^ [INFO] [stdout] 25 | }, [INFO] [stdout] 26 | task::{Context, Poll}, [INFO] [stdout] | ^^^^^^^ ^^^^ [INFO] [stdout] 27 | time::{Duration, Instant}, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tabwriter::TabWriter` [INFO] [stdout] --> src/lib.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | use tabwriter::TabWriter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `FastCounter` is never constructed [INFO] [stdout] --> src/fastcounter.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct FastCounter { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `incr`, `decr`, and `count` are never used [INFO] [stdout] --> src/fastcounter.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl FastCounter { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 12 | pub fn incr(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 18 | pub fn decr(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | pub fn count(&self) -> usize { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `backtrace::Backtrace` [INFO] [stdout] --> src/lib.rs:12:5 [INFO] [stdout] | [INFO] [stdout] 12 | use backtrace::Backtrace; [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 import: `dashmap::DashMap` [INFO] [stdout] --> src/lib.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use dashmap::DashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `fastcounter::FastCounter` [INFO] [stdout] --> src/lib.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | use fastcounter::FastCounter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io::Write` [INFO] [stdout] --> src/lib.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | use std::io::Write; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `AtomicU64`, `Context`, `Instant`, `Poll`, `io::stderr`, and `pin::Pin` [INFO] [stdout] --> src/lib.rs:19:5 [INFO] [stdout] | [INFO] [stdout] 19 | io::stderr, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 20 | pin::Pin, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | atomic::{AtomicBool, AtomicU64, Ordering}, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 24 | Arc, [INFO] [stdout] | ^^^ [INFO] [stdout] 25 | }, [INFO] [stdout] 26 | task::{Context, Poll}, [INFO] [stdout] | ^^^^^^^ ^^^^ [INFO] [stdout] 27 | time::{Duration, Instant}, [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `tabwriter::TabWriter` [INFO] [stdout] --> src/lib.rs:29:5 [INFO] [stdout] | [INFO] [stdout] 29 | use tabwriter::TabWriter; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `slow_fibonacci` is never used [INFO] [stdout] --> benches/my_benchmark.rs:144:4 [INFO] [stdout] | [INFO] [stdout] 144 | fn slow_fibonacci(n: u64) -> u64 { [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 `FastCounter` is never constructed [INFO] [stdout] --> src/fastcounter.rs:5:12 [INFO] [stdout] | [INFO] [stdout] 5 | pub struct FastCounter { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `incr`, `decr`, and `count` are never used [INFO] [stdout] --> src/fastcounter.rs:12:12 [INFO] [stdout] | [INFO] [stdout] 9 | impl FastCounter { [INFO] [stdout] | ---------------- methods in this implementation [INFO] [stdout] ... [INFO] [stdout] 12 | pub fn incr(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 18 | pub fn decr(&self) { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | pub fn count(&self) -> usize { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.59s [INFO] running `Command { std: "docker" "inspect" "c509780be150318461422c4b8d33ff81fc83cba5735ebc22cc84003c7c1a94f2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c509780be150318461422c4b8d33ff81fc83cba5735ebc22cc84003c7c1a94f2", kill_on_drop: false }` [INFO] [stdout] c509780be150318461422c4b8d33ff81fc83cba5735ebc22cc84003c7c1a94f2