[INFO] cloning repository https://github.com/mikeweber/adventofcode2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikeweber/adventofcode2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikeweber%2Fadventofcode2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikeweber%2Fadventofcode2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8a077300fb8773f2716b74c8cb7b01fb177ae47
[INFO] checking mikeweber/adventofcode2020 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikeweber%2Fadventofcode2020" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mikeweber/adventofcode2020 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mikeweber/adventofcode2020
[INFO] finished tweaking git repo https://github.com/mikeweber/adventofcode2020
[INFO] tweaked toml for git repo https://github.com/mikeweber/adventofcode2020 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mikeweber/adventofcode2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c88455d263d3685c5b02b93b3a2b14c8f9cade78b18ac0af260803d937be28c
[INFO] running `Command { std: "docker" "start" "-a" "4c88455d263d3685c5b02b93b3a2b14c8f9cade78b18ac0af260803d937be28c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c88455d263d3685c5b02b93b3a2b14c8f9cade78b18ac0af260803d937be28c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c88455d263d3685c5b02b93b3a2b14c8f9cade78b18ac0af260803d937be28c", kill_on_drop: false }`
[INFO] [stdout] 4c88455d263d3685c5b02b93b3a2b14c8f9cade78b18ac0af260803d937be28c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2f165d77a6e99e18a03dd1a71e9a87b44794dbed5bb47fd3c54c7ac98267af2
[INFO] running `Command { std: "docker" "start" "-a" "e2f165d77a6e99e18a03dd1a71e9a87b44794dbed5bb47fd3c54c7ac98267af2", kill_on_drop: false }`
[INFO] [stderr]     Checking advent2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `min`
[INFO] [stdout]   --> src/ex05/mod.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn find_missing_seat(tickets: &Vec<u16>, min: u16, max: u16) -> Option<u32> {
[INFO] [stdout]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_min`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max`
[INFO] [stdout]   --> src/ex05/mod.rs:32:52
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn find_missing_seat(tickets: &Vec<u16>, min: u16, max: u16) -> Option<u32> {
[INFO] [stdout]    |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]   --> src/ex06/mod.rs:82:28
[INFO] [stdout]    |
[INFO] [stdout] 82 |     group.fold(0, |count, (ch, answer_size)| {
[INFO] [stdout]    |                            ^^ help: if this is intentional, prefix it with an underscore: `_ch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get` is never used
[INFO] [stdout]   --> src/ex03/mod.rs:71:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl TreeMap {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 71 |     pub fn get(&self, row_index: usize, col_index: usize) -> Marker {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min`
[INFO] [stdout]   --> src/ex05/mod.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn find_missing_seat(tickets: &Vec<u16>, min: u16, max: u16) -> Option<u32> {
[INFO] [stdout]    |                                          ^^^ help: if this is intentional, prefix it with an underscore: `_min`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max`
[INFO] [stdout]   --> src/ex05/mod.rs:32:52
[INFO] [stdout]    |
[INFO] [stdout] 32 | fn find_missing_seat(tickets: &Vec<u16>, min: u16, max: u16) -> Option<u32> {
[INFO] [stdout]    |                                                    ^^^ help: if this is intentional, prefix it with an underscore: `_max`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ch`
[INFO] [stdout]   --> src/ex06/mod.rs:82:28
[INFO] [stdout]    |
[INFO] [stdout] 82 |     group.fold(0, |count, (ch, answer_size)| {
[INFO] [stdout]    |                            ^^ help: if this is intentional, prefix it with an underscore: `_ch`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `test_part_a` is never used
[INFO] [stdout]   --> src/ex05/mod.rs:87:8
[INFO] [stdout]    |
[INFO] [stdout] 87 |     fn test_part_a() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "e2f165d77a6e99e18a03dd1a71e9a87b44794dbed5bb47fd3c54c7ac98267af2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2f165d77a6e99e18a03dd1a71e9a87b44794dbed5bb47fd3c54c7ac98267af2", kill_on_drop: false }`
[INFO] [stdout] e2f165d77a6e99e18a03dd1a71e9a87b44794dbed5bb47fd3c54c7ac98267af2