[INFO] updating cached repository https://github.com/nickwilcox/autovec_demo
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 36764d482e7d481478de64afdb55cf1fb113f96b
[INFO] checking nickwilcox/autovec_demo against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnickwilcox%2Fautovec_demo" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nickwilcox/autovec_demo on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/nickwilcox/autovec_demo
[INFO] finished tweaking git repo https://github.com/nickwilcox/autovec_demo
[INFO] tweaked toml for git repo https://github.com/nickwilcox/autovec_demo written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/nickwilcox/autovec_demo already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4f7bf4029a72ccb76a69df21a9fde936575a1862b43bf6de1667ac0d9067ade5
[INFO] running `"docker" "start" "-a" "4f7bf4029a72ccb76a69df21a9fde936575a1862b43bf6de1667ac0d9067ade5"`
[INFO] [stderr]    Compiling serde v1.0.94
[INFO] [stderr]    Compiling autovec_demo v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]     Checking regex-automata v0.1.7
[INFO] [stderr]     Checking atty v0.2.12
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.94
[INFO] [stderr]     Checking bstr v0.2.2
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking criterion v0.2.11
[INFO] [stderr] warning: unused import: `black_box`
[INFO] [stderr]  --> benches/benchmark.rs:2:17
[INFO] [stderr]   |
[INFO] [stderr] 2 | use criterion::{black_box, criterion_group, criterion_main, Criterion};
[INFO] [stderr]   |                 ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.20s
[INFO] running `"docker" "inspect" "4f7bf4029a72ccb76a69df21a9fde936575a1862b43bf6de1667ac0d9067ade5"`
[INFO] running `"docker" "rm" "-f" "4f7bf4029a72ccb76a69df21a9fde936575a1862b43bf6de1667ac0d9067ade5"`
[INFO] [stdout] 4f7bf4029a72ccb76a69df21a9fde936575a1862b43bf6de1667ac0d9067ade5