[INFO] cloning repository https://github.com/huwwynnjones/advent_of_code_2020_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/huwwynnjones/advent_of_code_2020_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuwwynnjones%2Fadvent_of_code_2020_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuwwynnjones%2Fadvent_of_code_2020_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0201f425058b18de046cc19a07efdd9cad79ca67
[INFO] checking huwwynnjones/advent_of_code_2020_rust against try#4a04890980766cc79878135f5ade8c0c4321e943 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhuwwynnjones%2Fadvent_of_code_2020_rust" "/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/huwwynnjones/advent_of_code_2020_rust on toolchain 4a04890980766cc79878135f5ade8c0c4321e943
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/huwwynnjones/advent_of_code_2020_rust
[INFO] finished tweaking git repo https://github.com/huwwynnjones/advent_of_code_2020_rust
[INFO] tweaked toml for git repo https://github.com/huwwynnjones/advent_of_code_2020_rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/huwwynnjones/advent_of_code_2020_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/jobserver:/tmp/crater-runner-fifo:rw,Z" "-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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4a04890980766cc79878135f5ade8c0c4321e943" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd9f81928fcd5a40f0129b291346e2432d1c21af84bbf8e887e23faf3e3cbba6
[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" "cd9f81928fcd5a40f0129b291346e2432d1c21af84bbf8e887e23faf3e3cbba6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd9f81928fcd5a40f0129b291346e2432d1c21af84bbf8e887e23faf3e3cbba6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd9f81928fcd5a40f0129b291346e2432d1c21af84bbf8e887e23faf3e3cbba6", kill_on_drop: false }`
[INFO] [stdout] cd9f81928fcd5a40f0129b291346e2432d1c21af84bbf8e887e23faf3e3cbba6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/jobserver:/tmp/crater-runner-fifo:rw,Z" "-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" "RUSTUP_TOOLCHAIN=4a04890980766cc79878135f5ade8c0c4321e943" "-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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/tmp/crater-runner-fifo/jobserver-crater-fwd" "/opt/rustwide/cargo-home/bin/cargo" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4e6538444c980cbf850b71d92ea2d476d501fa8390a0865404d79ded01c966a
[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" "e4e6538444c980cbf850b71d92ea2d476d501fa8390a0865404d79ded01c966a", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking advent_of_code_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `seat_rows`
[INFO] [stdout]  --> src/day_5.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn seat_rows() -> Vec<u32> {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lower_half`
[INFO] [stdout]  --> src/day_5.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn lower_half(seats: &[u32]) -> Vec<u32> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `upper_half`
[INFO] [stdout]  --> src/day_5.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn upper_half(seats: &[u32]) -> Vec<u32> {
[INFO] [stdout]   |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `mid_point`
[INFO] [stdout]   --> src/day_5.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn mid_point(seats: &[u32]) -> usize {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `split_seats`
[INFO] [stdout]   --> src/day_5.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn split_seats(seats: &[u32], indicator: char) -> Vec<u32> {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_row`
[INFO] [stdout]   --> src/day_5.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn find_row(seats: &[u32], input: &[char]) -> Vec<u32> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `string_to_op_pair`
[INFO] [stdout]   --> src/day_8.rs:15:4
[INFO] [stdout]    |
[INFO] [stdout] 15 | fn string_to_op_pair(input: &str) -> (OpCode, i64) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.87s
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e4e6538444c980cbf850b71d92ea2d476d501fa8390a0865404d79ded01c966a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4e6538444c980cbf850b71d92ea2d476d501fa8390a0865404d79ded01c966a", kill_on_drop: false }`
[INFO] [stdout] e4e6538444c980cbf850b71d92ea2d476d501fa8390a0865404d79ded01c966a