[INFO] cloning repository https://github.com/thomasmatecki/advent-of-code-2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thomasmatecki/advent-of-code-2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasmatecki%2Fadvent-of-code-2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasmatecki%2Fadvent-of-code-2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c6fc99efdc5a4c3f98b9507d7e001425d918bb74
[INFO] checking thomasmatecki/advent-of-code-2020 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasmatecki%2Fadvent-of-code-2020" "/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/thomasmatecki/advent-of-code-2020 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thomasmatecki/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/thomasmatecki/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/thomasmatecki/advent-of-code-2020 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/thomasmatecki/advent-of-code-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd736c2f2e41fe45b6d29ba97b9482033899595c793cece598e7b5c7dae74da0
[INFO] running `Command { std: "docker" "start" "-a" "fd736c2f2e41fe45b6d29ba97b9482033899595c793cece598e7b5c7dae74da0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd736c2f2e41fe45b6d29ba97b9482033899595c793cece598e7b5c7dae74da0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd736c2f2e41fe45b6d29ba97b9482033899595c793cece598e7b5c7dae74da0", kill_on_drop: false }`
[INFO] [stdout] fd736c2f2e41fe45b6d29ba97b9482033899595c793cece598e7b5c7dae74da0
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9520f0d7db37a4faa0a58357a58e8b086fe2643a28e9c7a58a89cedacc5fc0db
[INFO] running `Command { std: "docker" "start" "-a" "9520f0d7db37a4faa0a58357a58e8b086fe2643a28e9c7a58a89cedacc5fc0db", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking aoc_lib v0.1.0 (/opt/rustwide/workdir/lib)
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking advent-of-code-2020 v0.1.0 (/opt/rustwide/workdir/2020)
[INFO] [stderr]     Checking advent-of-code-2021 v0.1.0 (/opt/rustwide/workdir/2021)
[INFO] [stdout] warning: unused imports: `multiply_counts`, `parse_input`
[INFO] [stdout]   --> 2020/src/day10.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |         use super::{multiply_counts, parse_input};
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `calc_arrangements`, `parse_input`
[INFO] [stdout]   --> 2020/src/day10.rs:75:21
[INFO] [stdout]    |
[INFO] [stdout] 75 |         use super::{calc_arrangements, parse_input};
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_space` is never used
[INFO] [stdout]   --> 2020/src/day17.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<const N: usize> DimensionIter<N> {
[INFO] [stdout]    | ------------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn from_space(space: &HashSet<[i32; N]>) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_space` is never used
[INFO] [stdout]   --> 2020/src/day17.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<const N: usize> DimensionIter<N> {
[INFO] [stdout]    | ------------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn from_space(space: &HashSet<[i32; N]>) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.23s
[INFO] running `Command { std: "docker" "inspect" "9520f0d7db37a4faa0a58357a58e8b086fe2643a28e9c7a58a89cedacc5fc0db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9520f0d7db37a4faa0a58357a58e8b086fe2643a28e9c7a58a89cedacc5fc0db", kill_on_drop: false }`
[INFO] [stdout] 9520f0d7db37a4faa0a58357a58e8b086fe2643a28e9c7a58a89cedacc5fc0db
[INFO] checking thomasmatecki/advent-of-code-2020 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthomasmatecki%2Fadvent-of-code-2020" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thomasmatecki/advent-of-code-2020 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thomasmatecki/advent-of-code-2020
[INFO] finished tweaking git repo https://github.com/thomasmatecki/advent-of-code-2020
[INFO] tweaked toml for git repo https://github.com/thomasmatecki/advent-of-code-2020 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/thomasmatecki/advent-of-code-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d28ac7c6dd4b737910c465f4c11a1c37bb5219720ca1a2364699b77331144f79
[INFO] running `Command { std: "docker" "start" "-a" "d28ac7c6dd4b737910c465f4c11a1c37bb5219720ca1a2364699b77331144f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d28ac7c6dd4b737910c465f4c11a1c37bb5219720ca1a2364699b77331144f79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d28ac7c6dd4b737910c465f4c11a1c37bb5219720ca1a2364699b77331144f79", kill_on_drop: false }`
[INFO] [stdout] d28ac7c6dd4b737910c465f4c11a1c37bb5219720ca1a2364699b77331144f79
[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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] da475ab235062b3b84bc62f45881cfb28ed3d7399e31628c492ffee94d2b51ba
[INFO] running `Command { std: "docker" "start" "-a" "da475ab235062b3b84bc62f45881cfb28ed3d7399e31628c492ffee94d2b51ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking aoc_lib v0.1.0 (/opt/rustwide/workdir/lib)
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking advent-of-code-2021 v0.1.0 (/opt/rustwide/workdir/2021)
[INFO] [stderr]     Checking advent-of-code-2020 v0.1.0 (/opt/rustwide/workdir/2020)
[INFO] [stdout] warning: unused imports: `multiply_counts`, `parse_input`
[INFO] [stdout]   --> 2020/src/day10.rs:56:21
[INFO] [stdout]    |
[INFO] [stdout] 56 |         use super::{multiply_counts, parse_input};
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `calc_arrangements`, `parse_input`
[INFO] [stdout]   --> 2020/src/day10.rs:75:21
[INFO] [stdout]    |
[INFO] [stdout] 75 |         use super::{calc_arrangements, parse_input};
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_space` is never used
[INFO] [stdout]   --> 2020/src/day17.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<const N: usize> DimensionIter<N> {
[INFO] [stdout]    | ------------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn from_space(space: &HashSet<[i32; N]>) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_space` is never used
[INFO] [stdout]   --> 2020/src/day17.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl<const N: usize> DimensionIter<N> {
[INFO] [stdout]    | ------------------------------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn from_space(space: &HashSet<[i32; N]>) -> Self {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.06s
[INFO] running `Command { std: "docker" "inspect" "da475ab235062b3b84bc62f45881cfb28ed3d7399e31628c492ffee94d2b51ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da475ab235062b3b84bc62f45881cfb28ed3d7399e31628c492ffee94d2b51ba", kill_on_drop: false }`
[INFO] [stdout] da475ab235062b3b84bc62f45881cfb28ed3d7399e31628c492ffee94d2b51ba