[INFO] fetching crate micro_metrics 0.2.0...
[INFO] checking micro_metrics-0.2.0 against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] extracting crate micro_metrics 0.2.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate micro_metrics 0.2.0
[INFO] finished tweaking crates.io crate micro_metrics 0.2.0
[INFO] tweaked toml for crates.io crate micro_metrics 0.2.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate micro_metrics 0.2.0 on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate micro_metrics 0.2.0 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" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3f2c14bf854070ef9edb0d8a6af6d8c7ce07f7a6c622f3483e0b07e22bb0b51f
[INFO] running `Command { std: "docker" "start" "-a" "3f2c14bf854070ef9edb0d8a6af6d8c7ce07f7a6c622f3483e0b07e22bb0b51f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3f2c14bf854070ef9edb0d8a6af6d8c7ce07f7a6c622f3483e0b07e22bb0b51f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f2c14bf854070ef9edb0d8a6af6d8c7ce07f7a6c622f3483e0b07e22bb0b51f", kill_on_drop: false }`
[INFO] [stdout] 3f2c14bf854070ef9edb0d8a6af6d8c7ce07f7a6c622f3483e0b07e22bb0b51f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d83a009279e2f00a4461d45c37842e58952deff1d25a5eb0fd91478476859c4c
[INFO] running `Command { std: "docker" "start" "-a" "d83a009279e2f00a4461d45c37842e58952deff1d25a5eb0fd91478476859c4c", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_json v1.0.142
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking getrandom v0.3.3
[INFO] [stderr]    Compiling heapless v0.8.0
[INFO] [stderr]    Compiling platforms v2.0.0
[INFO] [stderr]     Checking hash32 v0.3.1
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]    Compiling micro_core v0.2.0
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking nix v0.24.3
[INFO] [stderr]     Checking clap_builder v4.5.42
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking num_cpus v1.17.0
[INFO] [stderr]     Checking bit-vec v0.8.0
[INFO] [stderr]     Checking unescape v0.1.0
[INFO] [stderr]     Checking rand_core v0.9.3
[INFO] [stderr]     Checking tempfile v3.20.0
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking rand_xorshift v0.4.0
[INFO] [stderr]     Checking rand v0.9.2
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stderr]     Checking bit-set v0.8.0
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking unarray v0.1.4
[INFO] [stderr]     Checking rusty-fork v0.3.0
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking approx v0.5.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking proptest v1.7.0
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]     Checking simba v0.8.1
[INFO] [stderr]     Checking clap v4.5.42
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking sysinfo v0.30.13
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling derive_more v0.99.20
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking psutil v3.3.0
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking nalgebra v0.32.6
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stderr]     Checking micro_metrics v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]   --> src/timing.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     use std::time::Instant;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TimingHistogram`
[INFO] [stdout]  --> src/export.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::timing::{TimingHistogram, OperationStatistics, PerformanceProfiler};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::string::String`
[INFO] [stdout]   --> src/lib.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use alloc::string::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::vec::Vec`
[INFO] [stdout]   --> src/lib.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use alloc::vec::Vec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]   --> src/timing.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     use std::time::Instant;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TimingHistogram`
[INFO] [stdout]  --> src/export.rs:7:21
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::timing::{TimingHistogram, OperationStatistics, PerformanceProfiler};
[INFO] [stdout]   |                     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::string::String`
[INFO] [stdout]   --> src/lib.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use alloc::string::String;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `alloc::vec::Vec`
[INFO] [stdout]   --> src/lib.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | use alloc::vec::Vec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `timestamp` is never read
[INFO] [stdout]    --> src/collector.rs:464:5
[INFO] [stdout]     |
[INFO] [stdout] 461 | struct OperationRecord {
[INFO] [stdout]     |        --------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 464 |     timestamp: u64,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OperationRecord` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `timestamp` is never read
[INFO] [stdout]    --> src/collector.rs:464:5
[INFO] [stdout]     |
[INFO] [stdout] 461 | struct OperationRecord {
[INFO] [stdout]     |        --------------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 464 |     timestamp: u64,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `OperationRecord` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.36s
[INFO] running `Command { std: "docker" "inspect" "d83a009279e2f00a4461d45c37842e58952deff1d25a5eb0fd91478476859c4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d83a009279e2f00a4461d45c37842e58952deff1d25a5eb0fd91478476859c4c", kill_on_drop: false }`
[INFO] [stdout] d83a009279e2f00a4461d45c37842e58952deff1d25a5eb0fd91478476859c4c