[INFO] fetching crate diskspace_insight 0.1.6...
[INFO] checking diskspace_insight-0.1.6 against beta for pr-78714
[INFO] extracting crate diskspace_insight 0.1.6 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate diskspace_insight 0.1.6 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate diskspace_insight 0.1.6
[INFO] finished tweaking crates.io crate diskspace_insight 0.1.6
[INFO] tweaked toml for crates.io crate diskspace_insight 0.1.6 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aa27af155a541e5e220456875c8d876b5e09511dabfa72de84731c43d3ec0943
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aa27af155a541e5e220456875c8d876b5e09511dabfa72de84731c43d3ec0943", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa27af155a541e5e220456875c8d876b5e09511dabfa72de84731c43d3ec0943", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa27af155a541e5e220456875c8d876b5e09511dabfa72de84731c43d3ec0943", kill_on_drop: false }`
[INFO] [stdout] aa27af155a541e5e220456875c8d876b5e09511dabfa72de84731c43d3ec0943
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05826b40f97e0316d30543af2a01e24fd67009dac2c800d99e1f736417c564bc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "05826b40f97e0316d30543af2a01e24fd67009dac2c800d99e1f736417c564bc", kill_on_drop: false }`
[INFO] [stderr]     Checking transformation-pipeline v0.1.0
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking bzip2-sys v0.1.9+1.0.8
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking flate2 v1.0.19
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking serde_urlencoded v0.6.1
[INFO] [stderr]     Checking msdos_time v0.1.6
[INFO] [stderr]     Checking native-tls v0.2.6
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking tracing-futures v0.2.4
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking dirs v3.0.1
[INFO] [stderr]     Checking zip v0.2.8
[INFO] [stderr]     Checking csv v1.1.4
[INFO] [stderr]     Checking unzip v0.1.0
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking env_logger v0.8.1
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking tokio-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.2.7
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Checking diskspace_insight v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking hyper v0.13.9
[INFO] [stderr]     Checking hyper-tls v0.4.3
[INFO] [stderr]     Checking reqwest v0.10.8
[INFO] [stderr]     Checking benchmark_sampledata v0.1.5
[INFO] [stdout] warning: unused imports: `Benchmark`, `black_box`
[INFO] [stdout]  --> benches/home.rs:1:17
[INFO] [stdout]   |
[INFO] [stdout] 1 | use criterion::{black_box, criterion_group, criterion_main, Benchmark, Criterion};
[INFO] [stdout]   |                 ^^^^^^^^^                                   ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> benches/scan_kernel.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> benches/scan_kernel.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 23 |     sd.remove();
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.42s
[INFO] running `Command { std: "docker" "inspect" "05826b40f97e0316d30543af2a01e24fd67009dac2c800d99e1f736417c564bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05826b40f97e0316d30543af2a01e24fd67009dac2c800d99e1f736417c564bc", kill_on_drop: false }`
[INFO] [stdout] 05826b40f97e0316d30543af2a01e24fd67009dac2c800d99e1f736417c564bc