[INFO] cloning repository https://github.com/alevy/iterator_bench
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alevy/iterator_bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falevy%2Fiterator_bench"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falevy%2Fiterator_bench'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 026d67b174f1304e34626850dcc9c3aecc155f2b
[INFO] checking alevy/iterator_bench against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falevy%2Fiterator_bench" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/alevy/iterator_bench on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/alevy/iterator_bench
[INFO] finished tweaking git repo https://github.com/alevy/iterator_bench
[INFO] tweaked toml for git repo https://github.com/alevy/iterator_bench written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/alevy/iterator_bench already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "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] c1150ad319ce742ea2c2160241c2f51c0b085731aef68bdd9a8be84d989deabc
[INFO] running `"docker" "start" "-a" "c1150ad319ce742ea2c2160241c2f51c0b085731aef68bdd9a8be84d989deabc"`
[INFO] [stderr]     Checking iterator_bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/main.rs:63:1
[INFO] [stderr]    |
[INFO] [stderr] 63 | / /// This is the implementation we would write in C.
[INFO] [stderr] 64 | | ///
[INFO] [stderr] 65 | | ///   * It iterators over the input array with a C-style for-loop.
[INFO] [stderr] 66 | | ///
[INFO] [stderr] ...  |
[INFO] [stderr] 77 | | /// The compiler has managed to compile this into packed moves. So there are only 20,000 iterations
[INFO] [stderr] 78 | | /// of the loop with 5 instructions each.
[INFO] [stderr]    | |_________________________________________^
[INFO] [stderr] 79 | / benchmark!(
[INFO] [stderr] 80 | |     optimal_unsafe,
[INFO] [stderr] 81 | |     [u8; 640000],
[INFO] [stderr] 82 | |     [u16; 320000],
[INFO] [stderr] ...  |
[INFO] [stderr] 89 | |     }
[INFO] [stderr] 90 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/main.rs:63:1
[INFO] [stderr]    |
[INFO] [stderr] 63 | / /// This is the implementation we would write in C.
[INFO] [stderr] 64 | | ///
[INFO] [stderr] 65 | | ///   * It iterators over the input array with a C-style for-loop.
[INFO] [stderr] 66 | | ///
[INFO] [stderr] ...  |
[INFO] [stderr] 77 | | /// The compiler has managed to compile this into packed moves. So there are only 20,000 iterations
[INFO] [stderr] 78 | | /// of the loop with 5 instructions each.
[INFO] [stderr]    | |_________________________________________^
[INFO] [stderr] 79 | / benchmark!(
[INFO] [stderr] 80 | |     optimal_unsafe,
[INFO] [stderr] 81 | |     [u8; 640000],
[INFO] [stderr] 82 | |     [u16; 320000],
[INFO] [stderr] ...  |
[INFO] [stderr] 89 | |     }
[INFO] [stderr] 90 | | );
[INFO] [stderr]    | |__- rustdoc does not generate documentation for macro expansions
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `"docker" "inspect" "c1150ad319ce742ea2c2160241c2f51c0b085731aef68bdd9a8be84d989deabc"`
[INFO] running `"docker" "rm" "-f" "c1150ad319ce742ea2c2160241c2f51c0b085731aef68bdd9a8be84d989deabc"`
[INFO] [stdout] c1150ad319ce742ea2c2160241c2f51c0b085731aef68bdd9a8be84d989deabc