[INFO] cloning repository aickin/rust_advent_2016 [INFO] running `"git" "clone" "--bare" "git://github.com/aickin/rust_advent_2016.git" "work/cache/sources/gh/aickin/rust_advent_2016"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/aickin/rust_advent_2016'... [INFO] running `"git" "clone" "work/cache/sources/gh/aickin/rust_advent_2016" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/aickin/rust_advent_2016"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/aickin/rust_advent_2016'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/aickin/rust_advent_2016" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/aickin/rust_advent_2016"` [INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/aickin/rust_advent_2016'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 416afbcf873f46cc8f525d4f4344da319aea1133 [INFO] sha for GitHub repo aickin/rust_advent_2016: 416afbcf873f46cc8f525d4f4344da319aea1133 [INFO] validating manifest of aickin/rust_advent_2016 on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of aickin/rust_advent_2016 on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049 [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing aickin/rust_advent_2016 [INFO] finished frobbing aickin/rust_advent_2016 [INFO] frobbed toml for aickin/rust_advent_2016 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/aickin/rust_advent_2016/Cargo.toml [INFO] started frobbing aickin/rust_advent_2016 [INFO] finished frobbing aickin/rust_advent_2016 [INFO] frobbed toml for aickin/rust_advent_2016 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/aickin/rust_advent_2016/Cargo.toml [INFO] crate aickin/rust_advent_2016 already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking aickin/rust_advent_2016 against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008 [INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/aickin/rust_advent_2016:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 19fbfda0a0f3332c14958ad36362702125d3c4e0311af87b12c787b80ec2a67f [INFO] running `"docker" "start" "-a" "19fbfda0a0f3332c14958ad36362702125d3c4e0311af87b12c787b80ec2a67f"` [INFO] [stderr] Checking rust_advent_2016 v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.44s [INFO] running `"docker" "inspect" "19fbfda0a0f3332c14958ad36362702125d3c4e0311af87b12c787b80ec2a67f"` [INFO] running `"docker" "rm" "-f" "19fbfda0a0f3332c14958ad36362702125d3c4e0311af87b12c787b80ec2a67f"` [INFO] [stdout] 19fbfda0a0f3332c14958ad36362702125d3c4e0311af87b12c787b80ec2a67f