[INFO] updating cached repository https://github.com/AaronKutch/ptr_rotate_bench_demonstration
[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] 8ab688d7856e5f668040c70312de011ba71955e1
[INFO] checking AaronKutch/ptr_rotate_bench_demonstration against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAaronKutch%2Fptr_rotate_bench_demonstration" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AaronKutch/ptr_rotate_bench_demonstration on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/AaronKutch/ptr_rotate_bench_demonstration
[INFO] finished tweaking git repo https://github.com/AaronKutch/ptr_rotate_bench_demonstration
[INFO] tweaked toml for git repo https://github.com/AaronKutch/ptr_rotate_bench_demonstration written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/AaronKutch/ptr_rotate_bench_demonstration already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] ef92c124e8ef34b5a54ccf135eb103fbbd97ace24e25fd60afaaad4ef9b2c1a4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "ef92c124e8ef34b5a54ccf135eb103fbbd97ace24e25fd60afaaad4ef9b2c1a4"`
[INFO] [stderr]     Checking rotate_bench v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused imports: `Bencher`, `black_box`
[INFO] [stderr]  --> src/main.rs:6:12
[INFO] [stderr]   |
[INFO] [stderr] 6 | use test::{black_box, Bencher};
[INFO] [stderr]   |            ^^^^^^^^^  ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/main.rs:244:1
[INFO] [stderr]     |
[INFO] [stderr] 244 | / macro_rules! rotate_bench {
[INFO] [stderr] 245 | |     ($bench_name_old:ident, $bench_name_new:ident, $len:expr, $s:expr) => {
[INFO] [stderr] 246 | |         #[bench]
[INFO] [stderr] 247 | |         fn $bench_name_old(b: &mut Bencher) {
[INFO] [stderr] ...   |
[INFO] [stderr] 263 | |     };
[INFO] [stderr] 264 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/main.rs:266:1
[INFO] [stderr]     |
[INFO] [stderr] 266 | / macro_rules! rotate {
[INFO] [stderr] 267 | |     ($fn_old:ident, $fn_new:ident, $n:expr, $mapper:expr) => {
[INFO] [stderr] 268 | |         #[bench]
[INFO] [stderr] 269 | |         fn $fn_old(b: &mut Bencher) {
[INFO] [stderr] ...   |
[INFO] [stderr] 289 | |     }
[INFO] [stderr] 290 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `setup`
[INFO] [stderr]    --> src/main.rs:215:4
[INFO] [stderr]     |
[INFO] [stderr] 215 | fn setup(size: usize) -> Vec<usize> {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `check`
[INFO] [stderr]    --> src/main.rs:224:4
[INFO] [stderr]     |
[INFO] [stderr] 224 | fn check(x: &mut [usize], s: usize) {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "ef92c124e8ef34b5a54ccf135eb103fbbd97ace24e25fd60afaaad4ef9b2c1a4"`
[INFO] running `"docker" "rm" "-f" "ef92c124e8ef34b5a54ccf135eb103fbbd97ace24e25fd60afaaad4ef9b2c1a4"`
[INFO] [stdout] ef92c124e8ef34b5a54ccf135eb103fbbd97ace24e25fd60afaaad4ef9b2c1a4