[INFO] cloning repository https://github.com/hbaldwin98/RustyMazes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hbaldwin98/RustyMazes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhbaldwin98%2FRustyMazes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhbaldwin98%2FRustyMazes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c10581bad8c44854959e81eebea6ca6374a59cbe
[INFO] checking hbaldwin98/RustyMazes against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhbaldwin98%2FRustyMazes" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hbaldwin98/RustyMazes on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hbaldwin98/RustyMazes
[INFO] finished tweaking git repo https://github.com/hbaldwin98/RustyMazes
[INFO] tweaked toml for git repo https://github.com/hbaldwin98/RustyMazes written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hbaldwin98/RustyMazes 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 813b9412edc81c6d05528d292b161a2cb6f364b97e41c1cccbf342d1eef561b8
[INFO] running `Command { std: "docker" "start" "-a" "813b9412edc81c6d05528d292b161a2cb6f364b97e41c1cccbf342d1eef561b8", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `crate::prelude::*`
[INFO] [stdout]  --> src/point.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `process::Command`
[INFO] [stdout]   --> src/main.rs:28:31
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub use std::{path::Path, process::Command};
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::prelude::*`
[INFO] [stdout]  --> src/point.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `process::Command`
[INFO] [stdout]   --> src/main.rs:28:31
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub use std::{path::Path, process::Command};
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `North`, `East`, `South`, and `West` are never constructed
[INFO] [stdout]  --> src/point.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Direction {
[INFO] [stdout]   |          --------- variants in this enum
[INFO] [stdout] 6 |     North,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     East,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     South,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 9 |     West,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Direction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `zero` and `in_direction` are never used
[INFO] [stdout]   --> src/point.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Point {
[INFO] [stdout]    | ---------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn zero() -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn in_direction(direction: Direction) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `North`, `East`, `South`, and `West` are never constructed
[INFO] [stdout]  --> src/point.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum Direction {
[INFO] [stdout]   |          --------- variants in this enum
[INFO] [stdout] 6 |     North,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 7 |     East,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 8 |     South,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 9 |     West,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Direction` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `zero` and `in_direction` are never used
[INFO] [stdout]   --> src/point.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Point {
[INFO] [stdout]    | ---------- associated functions in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 23 |     pub fn zero() -> Self {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn in_direction(direction: Direction) -> Self {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.50s
[INFO] running `Command { std: "docker" "inspect" "813b9412edc81c6d05528d292b161a2cb6f364b97e41c1cccbf342d1eef561b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "813b9412edc81c6d05528d292b161a2cb6f364b97e41c1cccbf342d1eef561b8", kill_on_drop: false }`
[INFO] [stdout] 813b9412edc81c6d05528d292b161a2cb6f364b97e41c1cccbf342d1eef561b8