[INFO] cloning repository https://github.com/quantatic/rust-microbenchmarks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quantatic/rust-microbenchmarks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquantatic%2Frust-microbenchmarks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquantatic%2Frust-microbenchmarks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f7aca83a49e8181bc8a039912c8c22428d06ba8b
[INFO] checking quantatic/rust-microbenchmarks against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquantatic%2Frust-microbenchmarks" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/quantatic/rust-microbenchmarks
[INFO] finished tweaking git repo https://github.com/quantatic/rust-microbenchmarks
[INFO] tweaked toml for git repo https://github.com/quantatic/rust-microbenchmarks written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/quantatic/rust-microbenchmarks on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/quantatic/rust-microbenchmarks 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c7cf5ec5e809ab5c002fe4288ba2b3924aac132a72c46bfd874884a417694249
[INFO] running `Command { std: "docker" "start" "-a" "c7cf5ec5e809ab5c002fe4288ba2b3924aac132a72c46bfd874884a417694249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c7cf5ec5e809ab5c002fe4288ba2b3924aac132a72c46bfd874884a417694249", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7cf5ec5e809ab5c002fe4288ba2b3924aac132a72c46bfd874884a417694249", kill_on_drop: false }`
[INFO] [stdout] c7cf5ec5e809ab5c002fe4288ba2b3924aac132a72c46bfd874884a417694249
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fbc4cb07ad07d14ba2aee367c24810442a9b19c8a4c76f01c105c216a64e264
[INFO] running `Command { std: "docker" "start" "-a" "6fbc4cb07ad07d14ba2aee367c24810442a9b19c8a4c76f01c105c216a64e264", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.39
[INFO] [stderr]    Compiling futures-core v0.3.29
[INFO] [stderr]    Compiling serde v1.0.192
[INFO] [stderr]     Checking futures-sink v0.3.29
[INFO] [stderr]     Checking linux-raw-sys v0.4.11
[INFO] [stderr]    Compiling syscalls v0.6.15
[INFO] [stderr]     Checking clap_builder v4.4.8
[INFO] [stderr]     Checking core_affinity v0.8.1
[INFO] [stderr]     Checking futures-channel v0.3.29
[INFO] [stderr]     Checking rustix v0.38.21
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking clap v4.4.8
[INFO] [stderr]    Compiling serde_derive v1.0.192
[INFO] [stderr]    Compiling futures-macro v0.3.29
[INFO] [stderr]    Compiling serde_repr v0.1.17
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]     Checking tokio v1.34.0
[INFO] [stderr]     Checking futures-util v0.3.29
[INFO] [stderr]     Checking futures-executor v0.3.29
[INFO] [stderr]     Checking futures v0.3.29
[INFO] [stderr]     Checking serde_json v1.0.108
[INFO] [stderr]     Checking ciborium v0.2.1
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking instruction-benchmark v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::hint::black_box`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::hint::black_box;
[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 imports: `Instant`, `_mm_lfence`, `_mm_mfence`, `_mm_sfence`, and `thread::yield_now`
[INFO] [stdout]  --> benches/benchmark.rs:4:27
[INFO] [stdout]   |
[INFO] [stdout] 4 |         x86_64::{__cpuid, _mm_lfence, _mm_mfence, _mm_sfence},
[INFO] [stdout]   |                           ^^^^^^^^^^  ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 5 |     },
[INFO] [stdout] 6 |     thread::yield_now,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 7 |     time::{Duration, Instant},
[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: `std::hint::black_box`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::hint::black_box;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> benches/benchmark.rs:462:19
[INFO] [stdout]     |
[INFO] [stdout] 462 |         b.iter(|| unsafe { __cpuid(0) });
[INFO] [stdout]     |                   ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.94s
[INFO] running `Command { std: "docker" "inspect" "6fbc4cb07ad07d14ba2aee367c24810442a9b19c8a4c76f01c105c216a64e264", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fbc4cb07ad07d14ba2aee367c24810442a9b19c8a4c76f01c105c216a64e264", kill_on_drop: false }`
[INFO] [stdout] 6fbc4cb07ad07d14ba2aee367c24810442a9b19c8a4c76f01c105c216a64e264