[INFO] cloning repository https://github.com/Olyol95/aoc-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Olyol95/aoc-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOlyol95%2Faoc-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOlyol95%2Faoc-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2a1c626e909b02979718593e849cff0dc1b7639
[INFO] checking Olyol95/aoc-2020 against master#17ffbc81a30c094193836a5d7f90dff273b5df93 for pr-138785
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOlyol95%2Faoc-2020" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Olyol95/aoc-2020 on toolchain 17ffbc81a30c094193836a5d7f90dff273b5df93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+17ffbc81a30c094193836a5d7f90dff273b5df93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Olyol95/aoc-2020
[INFO] finished tweaking git repo https://github.com/Olyol95/aoc-2020
[INFO] tweaked toml for git repo https://github.com/Olyol95/aoc-2020 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Olyol95/aoc-2020 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" "+17ffbc81a30c094193836a5d7f90dff273b5df93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+17ffbc81a30c094193836a5d7f90dff273b5df93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d8388fe8e9ce86f9497ca3f92596650ea86f1433de7d9e8376a80b6e3314d3e
[INFO] running `Command { std: "docker" "start" "-a" "4d8388fe8e9ce86f9497ca3f92596650ea86f1433de7d9e8376a80b6e3314d3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d8388fe8e9ce86f9497ca3f92596650ea86f1433de7d9e8376a80b6e3314d3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d8388fe8e9ce86f9497ca3f92596650ea86f1433de7d9e8376a80b6e3314d3e", kill_on_drop: false }`
[INFO] [stdout] 4d8388fe8e9ce86f9497ca3f92596650ea86f1433de7d9e8376a80b6e3314d3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+17ffbc81a30c094193836a5d7f90dff273b5df93" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3989c7b9e06c3e2096b972c91d20ac6a56bac67c00aab572a9094873f6dc975e
[INFO] running `Command { std: "docker" "start" "-a" "3989c7b9e06c3e2096b972c91d20ac6a56bac67c00aab572a9094873f6dc975e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking aoc_2020 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `to_string` is never used
[INFO] [stdout]   --> src/solution/day14.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl U36 {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `field` is never read
[INFO] [stdout]  --> src/solution/day16.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rule {
[INFO] [stdout]   |        ---- field in this struct
[INFO] [stdout] 6 |     field: String,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `your_ticket` is never read
[INFO] [stdout]   --> src/solution/day16.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Day16 {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 22 |     rules: Vec<Rule>,
[INFO] [stdout] 23 |     your_ticket: Vec<u16>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `debug` is never used
[INFO] [stdout]    --> src/solution/day17.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout] 26  | impl Day17 {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 124 |     fn debug(&mut self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]   --> src/solution/day7.rs:73:38
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 to_remove.push(colour.clone());
[INFO] [stdout]    |                                      ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `to_string` is never used
[INFO] [stdout]   --> src/solution/day14.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl U36 {
[INFO] [stdout]    | -------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 42 |     pub fn to_string(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `field` is never read
[INFO] [stdout]  --> src/solution/day16.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Rule {
[INFO] [stdout]   |        ---- field in this struct
[INFO] [stdout] 6 |     field: String,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `your_ticket` is never read
[INFO] [stdout]   --> src/solution/day16.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct Day16 {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] 22 |     rules: Vec<Rule>,
[INFO] [stdout] 23 |     your_ticket: Vec<u16>,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `debug` is never used
[INFO] [stdout]    --> src/solution/day17.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout] 26  | impl Day17 {
[INFO] [stdout]     | ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 124 |     fn debug(&mut self) {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]   --> src/solution/day7.rs:73:38
[INFO] [stdout]    |
[INFO] [stdout] 73 |                 to_remove.push(colour.clone());
[INFO] [stdout]    |                                      ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.85s
[INFO] running `Command { std: "docker" "inspect" "3989c7b9e06c3e2096b972c91d20ac6a56bac67c00aab572a9094873f6dc975e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3989c7b9e06c3e2096b972c91d20ac6a56bac67c00aab572a9094873f6dc975e", kill_on_drop: false }`
[INFO] [stdout] 3989c7b9e06c3e2096b972c91d20ac6a56bac67c00aab572a9094873f6dc975e