[INFO] updating cached repository ilkka/advent-of-code
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ilkka/advent-of-code
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ilkka/advent-of-code" "work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/ilkka/advent-of-code"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/ilkka/advent-of-code'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ilkka/advent-of-code" "work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/ilkka/advent-of-code"`
[INFO] [stderr] Cloning into 'work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/ilkka/advent-of-code'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 428f8196bec7b5945b3b14ca89cb47911a1f80fc
[INFO] sha for GitHub repo ilkka/advent-of-code: 428f8196bec7b5945b3b14ca89cb47911a1f80fc
[INFO] validating manifest of ilkka/advent-of-code on toolchain master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ilkka/advent-of-code on toolchain try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ilkka/advent-of-code
[INFO] finished frobbing ilkka/advent-of-code
[INFO] frobbed toml for ilkka/advent-of-code written to work/ex/pr-61753/sources/master#8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be/gh/ilkka/advent-of-code/Cargo.toml
[INFO] started frobbing ilkka/advent-of-code
[INFO] finished frobbing ilkka/advent-of-code
[INFO] frobbed toml for ilkka/advent-of-code written to work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/ilkka/advent-of-code/Cargo.toml
[INFO] crate ilkka/advent-of-code already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8e948df707ea8a3c88c65bf2ffdcb2f1cf5491be-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking ilkka/advent-of-code against try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af for pr-61753
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61753/worker-1/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61753/sources/try#af22dfc7f56a5057c6b6120a65c74e7b6c1530af/gh/ilkka/advent-of-code:/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" "+af22dfc7f56a5057c6b6120a65c74e7b6c1530af-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 661b6f0f9dcc04b79f4d10bcfeee8d8e78f7279445f9677646e6bed8eddd8a45
[INFO] running `"docker" "start" "-a" "661b6f0f9dcc04b79f4d10bcfeee8d8e78f7279445f9677646e6bed8eddd8a45"`
[INFO] [stderr]     Checking advent v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused variable: `vec`
[INFO] [stderr]  --> src/bin/first.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let vec = INPUT.split("").collect::<Vec<_>>();
[INFO] [stderr]   |         ^^^ help: consider prefixing with an underscore: `_vec`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `vec`
[INFO] [stderr]  --> src/bin/first.rs:4:9
[INFO] [stderr]   |
[INFO] [stderr] 4 |     let vec = INPUT.split("").collect::<Vec<_>>();
[INFO] [stderr]   |         ^^^ help: consider prefixing with an underscore: `_vec`
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "661b6f0f9dcc04b79f4d10bcfeee8d8e78f7279445f9677646e6bed8eddd8a45"`
[INFO] running `"docker" "rm" "-f" "661b6f0f9dcc04b79f4d10bcfeee8d8e78f7279445f9677646e6bed8eddd8a45"`
[INFO] [stdout] 661b6f0f9dcc04b79f4d10bcfeee8d8e78f7279445f9677646e6bed8eddd8a45