[INFO] updating cached repository https://github.com/fpapado/aoc-2019-rust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] fcef0318a365083eb4a1b8f27817693940d8f46c
[INFO] checking fpapado/aoc-2019-rust against master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffpapado%2Faoc-2019-rust" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fpapado/aoc-2019-rust on toolchain bd0bacc694d7d8175804bb6f690cb846bfa4a9ee
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/fpapado/aoc-2019-rust
[INFO] finished tweaking git repo https://github.com/fpapado/aoc-2019-rust
[INFO] tweaked toml for git repo https://github.com/fpapado/aoc-2019-rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/fpapado/aoc-2019-rust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 936f5f94ad9e6f23ca6494a5a5d408521d8bac2c7ac28f2514d4cad37f9b7391
[INFO] running `"docker" "start" "-a" "936f5f94ad9e6f23ca6494a5a5d408521d8bac2c7ac28f2514d4cad37f9b7391"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking aoc-2019-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `opcode`
[INFO] [stderr]    --> src/day2.rs:150:25
[INFO] [stderr]     |
[INFO] [stderr] 150 |         OpCode::Unknown(opcode) => Err(ProcessingError),
[INFO] [stderr]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_opcode`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `opcode`
[INFO] [stderr]    --> src/day2.rs:150:25
[INFO] [stderr]     |
[INFO] [stderr] 150 |         OpCode::Unknown(opcode) => Err(ProcessingError),
[INFO] [stderr]     |                         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_opcode`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.75s
[INFO] running `"docker" "inspect" "936f5f94ad9e6f23ca6494a5a5d408521d8bac2c7ac28f2514d4cad37f9b7391"`
[INFO] running `"docker" "rm" "-f" "936f5f94ad9e6f23ca6494a5a5d408521d8bac2c7ac28f2514d4cad37f9b7391"`
[INFO] [stdout] 936f5f94ad9e6f23ca6494a5a5d408521d8bac2c7ac28f2514d4cad37f9b7391