[INFO] updating cached repository https://github.com/ejmahler/SandpileFractal
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/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] 9688de3c74c0a89c8fb331b12ad3af31579bd3a3
[INFO] checking ejmahler/SandpileFractal against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fejmahler%2FSandpileFractal" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ejmahler/SandpileFractal on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ejmahler/SandpileFractal
[INFO] finished tweaking git repo https://github.com/ejmahler/SandpileFractal
[INFO] tweaked toml for git repo https://github.com/ejmahler/SandpileFractal written to work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/ejmahler/SandpileFractal already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 99548ca8f9547048b49d4183b7a6928d704d5dd82f5202061ccbae3340759bf0
[INFO] running `"docker" "start" "-a" "99548ca8f9547048b49d4183b7a6928d704d5dd82f5202061ccbae3340759bf0"`
[INFO] [stderr]     Checking bincode v0.9.2
[INFO] [stderr]     Checking sandpile_fractal v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0282]: type annotations needed
[INFO] [stderr]   --> src/compute.rs:47:20
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 current_redist += read_iter.zip(write_iter).zip(counting_iter).map(|((input_chunk, output_chunk), counting_chunk)| process_row(input_chunk, output_chunk, counting_chunk, side_length)).sum();
[INFO] [stderr]    |                                ^^ cannot infer type
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0282`.
[INFO] [stderr] error: Could not compile `sandpile_fractal`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0282]: type annotations needed
[INFO] [stderr]   --> src/compute.rs:47:20
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 current_redist += read_iter.zip(write_iter).zip(counting_iter).map(|((input_chunk, output_chunk), counting_chunk)| process_row(input_chunk, output_chunk, counting_chunk, side_length)).sum();
[INFO] [stderr]    |                                ^^ cannot infer type
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0282`.
[INFO] [stderr] error: Could not compile `sandpile_fractal`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "99548ca8f9547048b49d4183b7a6928d704d5dd82f5202061ccbae3340759bf0"`
[INFO] running `"docker" "rm" "-f" "99548ca8f9547048b49d4183b7a6928d704d5dd82f5202061ccbae3340759bf0"`
[INFO] [stdout] 99548ca8f9547048b49d4183b7a6928d704d5dd82f5202061ccbae3340759bf0