[INFO] cloning repository https://github.com/lincolnq/advent-2018
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lincolnq/advent-2018" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flincolnq%2Fadvent-2018", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flincolnq%2Fadvent-2018'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0d1999f20c7a17901f6ea919128f3c246ea98f0b
[INFO] checking lincolnq/advent-2018 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flincolnq%2Fadvent-2018" "/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/lincolnq/advent-2018 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lincolnq/advent-2018
[INFO] finished tweaking git repo https://github.com/lincolnq/advent-2018
[INFO] tweaked toml for git repo https://github.com/lincolnq/advent-2018 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/lincolnq/advent-2018 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nom v4.1.1
[INFO] [stderr]   Downloaded ndarray v0.12.1
[INFO] [stderr]   Downloaded ordered-float 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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2d5f6c4f6d9495d51bd7275c2162371a7da231e110c8df4e6e94fa2e4360260
[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" "d2d5f6c4f6d9495d51bd7275c2162371a7da231e110c8df4e6e94fa2e4360260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2d5f6c4f6d9495d51bd7275c2162371a7da231e110c8df4e6e94fa2e4360260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2d5f6c4f6d9495d51bd7275c2162371a7da231e110c8df4e6e94fa2e4360260", kill_on_drop: false }`
[INFO] [stdout] d2d5f6c4f6d9495d51bd7275c2162371a7da231e110c8df4e6e94fa2e4360260
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7cd595ef05690e30529af953d7db8e90eb8adaf9dd6414fd33621864185f8dda
[INFO] running `Command { std: "docker" "start" "-a" "7cd595ef05690e30529af953d7db8e90eb8adaf9dd6414fd33621864185f8dda", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking ordered-float v1.0.1
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking advent v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use(s)]
[INFO] [stdout]   |             ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:3:13
[INFO] [stdout]   |
[INFO] [stdout] 3 | #[macro_use(s)]
[INFO] [stdout]   |             ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/advent11_convolve_power_level.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn advent11(s: String) -> Result<String, &'static str> {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `best_square`
[INFO] [stdout]   --> src/advent11_convolve_power_level.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn best_square(grid: &Vec<i32>, square_size: i32) -> (i32, (i32, i32)) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `from_str_i32`
[INFO] [stdout]  --> src/parsing.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn from_str_i32(input: &str) -> Result<i32, ParseIntError> {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/advent11_convolve_power_level.rs:67:17
[INFO] [stdout]    |
[INFO] [stdout] 67 | pub fn advent11(s: String) -> Result<String, &'static str> {
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `best_square`
[INFO] [stdout]   --> src/advent11_convolve_power_level.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn best_square(grid: &Vec<i32>, square_size: i32) -> (i32, (i32, i32)) {
[INFO] [stdout]    |    ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `from_str_i32`
[INFO] [stdout]  --> src/parsing.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn from_str_i32(input: &str) -> Result<i32, ParseIntError> {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.48s
[INFO] running `Command { std: "docker" "inspect" "7cd595ef05690e30529af953d7db8e90eb8adaf9dd6414fd33621864185f8dda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cd595ef05690e30529af953d7db8e90eb8adaf9dd6414fd33621864185f8dda", kill_on_drop: false }`
[INFO] [stdout] 7cd595ef05690e30529af953d7db8e90eb8adaf9dd6414fd33621864185f8dda