[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] testing AaronKutch/ptr_rotate_bench_demonstration against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAaronKutch%2Fptr_rotate_bench_demonstration" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/AaronKutch/ptr_rotate_bench_demonstration on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "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-12/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" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 44aaaec189af70b5f73ab5c97f80bec1a149627346b7f47b18b4c4c100bb87f8
[INFO] running `"docker" "start" "-a" "44aaaec189af70b5f73ab5c97f80bec1a149627346b7f47b18b4c4c100bb87f8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling rotate_bench v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(test)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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] error: aborting due to previous error; 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `rotate_bench`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "44aaaec189af70b5f73ab5c97f80bec1a149627346b7f47b18b4c4c100bb87f8"`
[INFO] running `"docker" "rm" "-f" "44aaaec189af70b5f73ab5c97f80bec1a149627346b7f47b18b4c4c100bb87f8"`
[INFO] [stdout] 44aaaec189af70b5f73ab5c97f80bec1a149627346b7f47b18b4c4c100bb87f8