[INFO] updating cached repository https://github.com/jmpesp/advent-of-code-2019
[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] abfd5b0ac8ba5e787dcfcfb372138260f3c69fa7
[INFO] checking jmpesp/advent-of-code-2019 against master#6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 for pr-70872
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmpesp%2Fadvent-of-code-2019" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jmpesp/advent-of-code-2019 on toolchain 6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/jmpesp/advent-of-code-2019
[INFO] finished tweaking git repo https://github.com/jmpesp/advent-of-code-2019
[INFO] tweaked toml for git repo https://github.com/jmpesp/advent-of-code-2019 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/jmpesp/advent-of-code-2019 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "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] b547ebda438c8dbe53c89529c275f6847eddb788261e4504358dbae01ae489e3
[INFO] running `"docker" "start" "-a" "b547ebda438c8dbe53c89529c275f6847eddb788261e4504358dbae01ae489e3"`
[INFO] [stderr]     Checking advent-of-code-2019 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::convert`
[INFO] [stderr]  --> src/bin/day01.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::convert;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/bin/day01.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 |     if (fuel < 0) {
[INFO] [stderr]    |        ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pos` is never read
[INFO] [stderr]    --> src/bin/day16.rs:133:21
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     pos += index;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]    --> src/bin/day16.rs:203:9
[INFO] [stderr]     |
[INFO] [stderr] 203 |     let output: Vec<String> = numbers.iter().map(|s| s.to_string()).collect();
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_repeating_pattern`
[INFO] [stderr]   --> src/bin/day16.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 | fn get_repeating_pattern(index: u32) -> Vec<i32> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `pos` is never read
[INFO] [stderr]    --> src/bin/day16.rs:133:21
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     pos += index;
[INFO] [stderr]     |                     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `output`
[INFO] [stderr]    --> src/bin/day16.rs:203:9
[INFO] [stderr]     |
[INFO] [stderr] 203 |     let output: Vec<String> = numbers.iter().map(|s| s.to_string()).collect();
[INFO] [stderr]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_output`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::convert`
[INFO] [stderr]  --> src/bin/day01.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::convert;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/bin/day01.rs:31:8
[INFO] [stderr]    |
[INFO] [stderr] 31 |     if (fuel < 0) {
[INFO] [stderr]    |        ^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/bin/day18.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `letters`
[INFO] [stderr]    --> src/bin/day18.rs:106:5
[INFO] [stderr]     |
[INFO] [stderr] 106 |     fn letters(&self, v: Vec<NodeIndex<DefaultIx>>) -> HashSet<String> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.07s
[INFO] running `"docker" "inspect" "b547ebda438c8dbe53c89529c275f6847eddb788261e4504358dbae01ae489e3"`
[INFO] running `"docker" "rm" "-f" "b547ebda438c8dbe53c89529c275f6847eddb788261e4504358dbae01ae489e3"`
[INFO] [stdout] b547ebda438c8dbe53c89529c275f6847eddb788261e4504358dbae01ae489e3