[INFO] cloning repository ghusse/advent-of-code-2018-rust
[INFO] running `"git" "clone" "--bare" "git://github.com/ghusse/advent-of-code-2018-rust.git" "work/cache/sources/gh/ghusse/advent-of-code-2018-rust"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/ghusse/advent-of-code-2018-rust'...
[INFO] running `"git" "clone" "work/cache/sources/gh/ghusse/advent-of-code-2018-rust" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/ghusse/advent-of-code-2018-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/ghusse/advent-of-code-2018-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ghusse/advent-of-code-2018-rust" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/ghusse/advent-of-code-2018-rust"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/ghusse/advent-of-code-2018-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d310ec9de346e0152ecf618548026697f9f9ae52
[INFO] sha for GitHub repo ghusse/advent-of-code-2018-rust: d310ec9de346e0152ecf618548026697f9f9ae52
[INFO] validating manifest of ghusse/advent-of-code-2018-rust 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 ghusse/advent-of-code-2018-rust 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 ghusse/advent-of-code-2018-rust
[INFO] finished frobbing ghusse/advent-of-code-2018-rust
[INFO] frobbed toml for ghusse/advent-of-code-2018-rust written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/ghusse/advent-of-code-2018-rust/Cargo.toml
[INFO] started frobbing ghusse/advent-of-code-2018-rust
[INFO] finished frobbing ghusse/advent-of-code-2018-rust
[INFO] frobbed toml for ghusse/advent-of-code-2018-rust written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/ghusse/advent-of-code-2018-rust/Cargo.toml
[INFO] crate ghusse/advent-of-code-2018-rust 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 ghusse/advent-of-code-2018-rust against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-6/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/ghusse/advent-of-code-2018-rust:/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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1a21131b9011d694c82ca0dfad72e344c4ae872372d4c6bda21b0f9b9beae439
[INFO] running `"docker" "start" "-a" "1a21131b9011d694c82ca0dfad72e344c4ae872372d4c6bda21b0f9b9beae439"`
[INFO] [stderr]     Checking elapsed v0.1.2
[INFO] [stderr]     Checking iso8601 v0.1.1
[INFO] [stderr]     Checking quickersort v3.0.1
[INFO] [stderr]     Checking locale v0.2.2
[INFO] [stderr]     Checking datetime v0.4.7
[INFO] [stderr]     Checking advent v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/day_13/mod.rs:164:9
[INFO] [stderr]     |
[INFO] [stderr] 164 |     for mut i in 0..len {
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/day_13/mod.rs:164:9
[INFO] [stderr]     |
[INFO] [stderr] 164 |     for mut i in 0..len {
[INFO] [stderr]     |         ----^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.37s
[INFO] running `"docker" "inspect" "1a21131b9011d694c82ca0dfad72e344c4ae872372d4c6bda21b0f9b9beae439"`
[INFO] running `"docker" "rm" "-f" "1a21131b9011d694c82ca0dfad72e344c4ae872372d4c6bda21b0f9b9beae439"`
[INFO] [stdout] 1a21131b9011d694c82ca0dfad72e344c4ae872372d4c6bda21b0f9b9beae439