[INFO] cloning repository ejmahler/SandpileFractal
[INFO] running `"git" "clone" "--bare" "git://github.com/ejmahler/SandpileFractal.git" "work/cache/sources/gh/ejmahler/SandpileFractal"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/ejmahler/SandpileFractal'...
[INFO] running `"git" "clone" "work/cache/sources/gh/ejmahler/SandpileFractal" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/ejmahler/SandpileFractal"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/ejmahler/SandpileFractal'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ejmahler/SandpileFractal" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/ejmahler/SandpileFractal"`
[INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/ejmahler/SandpileFractal'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 9688de3c74c0a89c8fb331b12ad3af31579bd3a3
[INFO] sha for GitHub repo ejmahler/SandpileFractal: 9688de3c74c0a89c8fb331b12ad3af31579bd3a3
[INFO] validating manifest of ejmahler/SandpileFractal on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ejmahler/SandpileFractal on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ejmahler/SandpileFractal
[INFO] finished frobbing ejmahler/SandpileFractal
[INFO] frobbed toml for ejmahler/SandpileFractal written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/ejmahler/SandpileFractal/Cargo.toml
[INFO] started frobbing ejmahler/SandpileFractal
[INFO] finished frobbing ejmahler/SandpileFractal
[INFO] frobbed toml for ejmahler/SandpileFractal written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/ejmahler/SandpileFractal/Cargo.toml
[INFO] crate ejmahler/SandpileFractal already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ejmahler/SandpileFractal against try#d3301713b54af69ca9de941a8c6b0d8287dbd6df for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-7/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/ejmahler/SandpileFractal:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0da57bb57aca69f03f2d75c5d02da4ddafe47658f15ec0961b94c7f976e62666
[INFO] running `"docker" "start" "-a" "0da57bb57aca69f03f2d75c5d02da4ddafe47658f15ec0961b94c7f976e62666"`
[INFO] [stderr]     Checking serde v1.0.18
[INFO] [stderr]     Checking rand v0.3.17
[INFO] [stderr]     Checking coco v0.1.1
[INFO] [stderr]     Checking deflate v0.7.17
[INFO] [stderr]    Compiling serde_derive v1.0.18
[INFO] [stderr]     Checking png v0.11.0
[INFO] [stderr]     Checking rayon-core v1.2.1
[INFO] [stderr]     Checking rayon v0.8.2
[INFO] [stderr]     Checking jpeg-decoder v0.1.13
[INFO] [stderr]     Checking image v0.17.0
[INFO] [stderr]     Checking bincode v0.9.2
[INFO] [stderr]     Checking sandpile_fractal v0.1.0 (/opt/crater/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" "0da57bb57aca69f03f2d75c5d02da4ddafe47658f15ec0961b94c7f976e62666"`
[INFO] running `"docker" "rm" "-f" "0da57bb57aca69f03f2d75c5d02da4ddafe47658f15ec0961b94c7f976e62666"`
[INFO] [stdout] 0da57bb57aca69f03f2d75c5d02da4ddafe47658f15ec0961b94c7f976e62666