[INFO] cloning repository https://github.com/thenixan/aoc-2016
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thenixan/aoc-2016" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthenixan%2Faoc-2016", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthenixan%2Faoc-2016'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b238207f2a332c2a6fea7823ffe65f2f4554432f
[INFO] checking thenixan/aoc-2016 against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthenixan%2Faoc-2016" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thenixan/aoc-2016 on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thenixan/aoc-2016
[INFO] finished tweaking git repo https://github.com/thenixan/aoc-2016
[INFO] tweaked toml for git repo https://github.com/thenixan/aoc-2016 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/thenixan/aoc-2016 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded iterslide v1.0.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 841f93ffe15b55c931777d92bfb84c2a4a8e1df3a31cc7c55b65de943a415a88
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "841f93ffe15b55c931777d92bfb84c2a4a8e1df3a31cc7c55b65de943a415a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "841f93ffe15b55c931777d92bfb84c2a4a8e1df3a31cc7c55b65de943a415a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "841f93ffe15b55c931777d92bfb84c2a4a8e1df3a31cc7c55b65de943a415a88", kill_on_drop: false }`
[INFO] [stdout] 841f93ffe15b55c931777d92bfb84c2a4a8e1df3a31cc7c55b65de943a415a88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c19978acde777440054c64209f49b94d4afc43e78eedeb203a4ad2ffeae6dfbc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c19978acde777440054c64209f49b94d4afc43e78eedeb203a4ad2ffeae6dfbc", kill_on_drop: false }`
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking iterslide v1.0.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking aoc-2016 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `empty_pos`
[INFO] [stdout]   --> src/task_22.rs:63:18
[INFO] [stdout]    |
[INFO] [stdout] 63 |             let (empty_pos, empty_meta) = self.empty();
[INFO] [stdout]    |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_empty_pos`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `empty_pos`
[INFO] [stdout]   --> src/task_22.rs:63:18
[INFO] [stdout]    |
[INFO] [stdout] 63 |             let (empty_pos, empty_meta) = self.empty();
[INFO] [stdout]    |                  ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_empty_pos`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.40s
[INFO] running `Command { std: "docker" "inspect" "c19978acde777440054c64209f49b94d4afc43e78eedeb203a4ad2ffeae6dfbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c19978acde777440054c64209f49b94d4afc43e78eedeb203a4ad2ffeae6dfbc", kill_on_drop: false }`
[INFO] [stdout] c19978acde777440054c64209f49b94d4afc43e78eedeb203a4ad2ffeae6dfbc