[INFO] cloning repository https://github.com/RotesWasser/advent-of-code
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RotesWasser/advent-of-code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRotesWasser%2Fadvent-of-code", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRotesWasser%2Fadvent-of-code'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5993cfa9bcfc6f377cef8a8fb021f8a4eabc57a
[INFO] checking RotesWasser/advent-of-code against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRotesWasser%2Fadvent-of-code" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/RotesWasser/advent-of-code
[INFO] finished tweaking git repo https://github.com/RotesWasser/advent-of-code
[INFO] tweaked toml for git repo https://github.com/RotesWasser/advent-of-code written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/RotesWasser/advent-of-code on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/RotesWasser/advent-of-code 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45bf45a4ebc167056348b5a828d3b4c66c3f8eb95b6869bbbac1318670f46c7a
[INFO] running `Command { std: "docker" "start" "-a" "45bf45a4ebc167056348b5a828d3b4c66c3f8eb95b6869bbbac1318670f46c7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45bf45a4ebc167056348b5a828d3b4c66c3f8eb95b6869bbbac1318670f46c7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45bf45a4ebc167056348b5a828d3b4c66c3f8eb95b6869bbbac1318670f46c7a", kill_on_drop: false }`
[INFO] [stdout] 45bf45a4ebc167056348b5a828d3b4c66c3f8eb95b6869bbbac1318670f46c7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7cd4f4de41433df4dc6b23a1ec5ddcb3b5535c0bb03d3e19e3fa396843abc2f1
[INFO] running `Command { std: "docker" "start" "-a" "7cd4f4de41433df4dc6b23a1ec5ddcb3b5535c0bb03d3e19e3fa396843abc2f1", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking fixedbitset v0.4.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking petgraph v0.6.0
[INFO] [stderr]     Checking day6 v0.1.0 (/opt/rustwide/workdir/day6)
[INFO] [stderr]     Checking day8 v0.1.0 (/opt/rustwide/workdir/day8)
[INFO] [stderr]     Checking day11 v0.1.0 (/opt/rustwide/workdir/day11)
[INFO] [stderr]     Checking day5 v0.1.0 (/opt/rustwide/workdir/day5)
[INFO] [stderr]     Checking day10 v0.1.0 (/opt/rustwide/workdir/day10)
[INFO] [stderr]     Checking day13 v0.1.0 (/opt/rustwide/workdir/day13)
[INFO] [stdout] warning: unused imports: `HashSet`, `error::Error`, and `hash::Hash`
[INFO] [stdout]  --> day10/src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{error::Error, collections::{HashSet, HashMap}, hash::Hash};
[INFO] [stdout]   |           ^^^^^^^^^^^^                ^^^^^^^            ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `position` and `expected` are never read
[INFO] [stdout]  --> day10/src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct SyntaxError {
[INFO] [stdout]   |        ----------- fields in this struct
[INFO] [stdout] 8 |     position: usize,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 9 |     expected: Option<char>,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day14 v0.1.0 (/opt/rustwide/workdir/day14)
[INFO] [stderr]     Checking day1 v0.1.0 (/opt/rustwide/workdir/day1)
[INFO] [stdout] warning: unused import: `error::Error`
[INFO] [stdout]  --> day8/src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{error::Error, collections::{HashMap, HashSet}, vec};
[INFO] [stdout]   |           ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking day3 v0.1.0 (/opt/rustwide/workdir/day3)
[INFO] [stdout] error: this type will no longer be must used: Result<f64, Infallible>
[INFO] [stdout]   --> day5/src/main.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 |         let fx: f64 = self.x.pow(2).try_into().unwrap();
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<f64, Infallible>
[INFO] [stdout]   --> day5/src/main.rs:15:23
[INFO] [stdout]    |
[INFO] [stdout] 15 |         let fy: f64 = self.y.pow(2).try_into().unwrap();
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to_parse`
[INFO] [stdout]    --> day8/src/main.rs:149:20
[INFO] [stdout]     |
[INFO] [stdout] 149 |     let (observed, to_parse) = unpack_input_line(TEST_INPUT);
[INFO] [stdout]     |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_parse`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to_parse`
[INFO] [stdout]    --> day8/src/main.rs:169:20
[INFO] [stdout]     |
[INFO] [stdout] 169 |     let (observed, to_parse) = unpack_input_line(TRIVIAL_INPUT);
[INFO] [stdout]     |                    ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_to_parse`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `solver`
[INFO] [stdout]    --> day8/src/main.rs:171:9
[INFO] [stdout]     |
[INFO] [stdout] 171 |     let solver = SevenSegmentSolver::new(observed);
[INFO] [stdout]     |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_solver`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `day5` (bin "day5" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: constant `TEST_INPUTS` is never used
[INFO] [stdout]    --> day3/src/main.rs:127:7
[INFO] [stdout]     |
[INFO] [stdout] 127 | const TEST_INPUTS: [&'static str; 12] = [
[INFO] [stdout]     |       ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: using `.clone()` on a double reference, which returns `&str` instead of cloning the inner type
[INFO] [stdout]    --> day3/src/main.rs:112:94
[INFO] [stdout]     |
[INFO] [stdout] 112 |     return to_search.iter().filter(|x| x.chars().nth(position).unwrap() == to_keep).map(|x| x.clone()).collect();
[INFO] [stdout]     |                                                                                              ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7cd4f4de41433df4dc6b23a1ec5ddcb3b5535c0bb03d3e19e3fa396843abc2f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7cd4f4de41433df4dc6b23a1ec5ddcb3b5535c0bb03d3e19e3fa396843abc2f1", kill_on_drop: false }`
[INFO] [stdout] 7cd4f4de41433df4dc6b23a1ec5ddcb3b5535c0bb03d3e19e3fa396843abc2f1
