[INFO] updating cached repository https://github.com/botwob/AdventOfCode2019
[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] d74c6d3aa202fc4d5a17fedac04e0ada0c8df64a
[INFO] checking botwob/AdventOfCode2019 against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbotwob%2FAdventOfCode2019" "/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/botwob/AdventOfCode2019 on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/botwob/AdventOfCode2019
[INFO] finished tweaking git repo https://github.com/botwob/AdventOfCode2019
[INFO] tweaked toml for git repo https://github.com/botwob/AdventOfCode2019 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/botwob/AdventOfCode2019 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "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" "+45d050cde277b22a755847338f2acc2c7b834141" "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] e4e9055c7816df90183def5520997cbf9e99fb10e28b850c567ace2f023a7aad
[INFO] running `"docker" "start" "-a" "e4e9055c7816df90183def5520997cbf9e99fb10e28b850c567ace2f023a7aad"`
[INFO] [stderr]     Checking advent1 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]  --> src/day2.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut pos = 0;
[INFO] [stderr]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/day2.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut pos = 0;
[INFO] [stderr]   |         ----^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `part1`
[INFO] [stderr]  --> src/day1.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn part1() {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `part2`
[INFO] [stderr]  --> src/day1.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2() {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fuel_required`
[INFO] [stderr]   --> src/day1.rs:13:4
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn fuel_required(mass: i32) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mass_to_zero`
[INFO] [stderr]   --> src/day1.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn mass_to_zero( mass: i32) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_4`
[INFO] [stderr]   --> src/day2.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn read_4() {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pos`
[INFO] [stderr]  --> src/day2.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut pos = 0;
[INFO] [stderr]   |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pos`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]  --> src/day2.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let mut pos = 0;
[INFO] [stderr]   |         ----^^^
[INFO] [stderr]   |         |
[INFO] [stderr]   |         help: remove this `mut`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `part1`
[INFO] [stderr]  --> src/day1.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn part1() {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `part2`
[INFO] [stderr]  --> src/day1.rs:8:8
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub fn part2() {
[INFO] [stderr]   |        ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `fuel_required`
[INFO] [stderr]   --> src/day1.rs:13:4
[INFO] [stderr]    |
[INFO] [stderr] 13 | fn fuel_required(mass: i32) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `mass_to_zero`
[INFO] [stderr]   --> src/day1.rs:17:4
[INFO] [stderr]    |
[INFO] [stderr] 17 | fn mass_to_zero( mass: i32) -> i32 {
[INFO] [stderr]    |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_4`
[INFO] [stderr]   --> src/day2.rs:11:4
[INFO] [stderr]    |
[INFO] [stderr] 11 | fn read_4() {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `"docker" "inspect" "e4e9055c7816df90183def5520997cbf9e99fb10e28b850c567ace2f023a7aad"`
[INFO] running `"docker" "rm" "-f" "e4e9055c7816df90183def5520997cbf9e99fb10e28b850c567ace2f023a7aad"`
[INFO] [stdout] e4e9055c7816df90183def5520997cbf9e99fb10e28b850c567ace2f023a7aad