[INFO] cloning repository https://github.com/conradludgate/rubiks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/conradludgate/rubiks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Frubiks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Frubiks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c86242c7ff7f01f45f90019538020557ab1d9ea8
[INFO] checking conradludgate/rubiks against try#121a90d34197f711021eeb158e7f4184b8be8ceb for pr-140313
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fconradludgate%2Frubiks" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/conradludgate/rubiks on toolchain 121a90d34197f711021eeb158e7f4184b8be8ceb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/conradludgate/rubiks
[INFO] finished tweaking git repo https://github.com/conradludgate/rubiks
[INFO] tweaked toml for git repo https://github.com/conradludgate/rubiks written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/conradludgate/rubiks 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" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1a09f635211dfc5a0a96a521e1e449f7eff1bccbf93659dda6fbe456eb5a50e
[INFO] running `Command { std: "docker" "start" "-a" "c1a09f635211dfc5a0a96a521e1e449f7eff1bccbf93659dda6fbe456eb5a50e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1a09f635211dfc5a0a96a521e1e449f7eff1bccbf93659dda6fbe456eb5a50e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1a09f635211dfc5a0a96a521e1e449f7eff1bccbf93659dda6fbe456eb5a50e", kill_on_drop: false }`
[INFO] [stdout] c1a09f635211dfc5a0a96a521e1e449f7eff1bccbf93659dda6fbe456eb5a50e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b5c9d9102697095a7a7b58aa699b4a7594508a77a1fafce669b0766f5433d72a
[INFO] running `Command { std: "docker" "start" "-a" "b5c9d9102697095a7a7b58aa699b4a7594508a77a1fafce669b0766f5433d72a", kill_on_drop: false }`
[INFO] [stderr]     Checking rubiks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Cube` is never constructed
[INFO] [stdout]  --> src/cube.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Cube {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cube` is never constructed
[INFO] [stdout]  --> src/cube.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Cube {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `EdgeOrientation` is never used
[INFO] [stdout]  --> src/cube.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum EdgeOrientation {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `EdgeOrientation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CornerOrientation` is never used
[INFO] [stdout]   --> src/cube.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum CornerOrientation {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CornerOrientation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]   --> src/cube.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Edge(u8);
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Edge` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `EdgeOrientation` is never used
[INFO] [stdout]  --> src/cube.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub enum EdgeOrientation {
[INFO] [stdout]   |          ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `EdgeOrientation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `CornerOrientation` is never used
[INFO] [stdout]   --> src/cube.rs:13:10
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub enum CornerOrientation {
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CornerOrientation` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Edge` is never constructed
[INFO] [stdout]   --> src/cube.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct Edge(u8);
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Edge` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Corner` is never constructed
[INFO] [stdout]   --> src/cube.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Corner(u8);
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Corner` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Corner` is never constructed
[INFO] [stdout]   --> src/cube.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct Corner(u8);
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Corner` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Side` is never used
[INFO] [stdout]   --> src/cube.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum Side {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Side` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stdout] warning: enum `Side` is never used
[INFO] [stdout]   --> src/cube.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum Side {
[INFO] [stdout]    |          ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Side` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `edge` and `corner` are never used
[INFO] [stdout]   --> src/cube.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl Side {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] 37 |     pub fn edge(a: Self, b: Self) -> Option<Edge> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn corner(a: Self, b: Self, c: Self) -> Option<Corner> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated functions `edge` and `corner` are never used
[INFO] [stdout]   --> src/cube.rs:37:12
[INFO] [stdout]    |
[INFO] [stdout] 36 | impl Side {
[INFO] [stdout]    | --------- associated functions in this implementation
[INFO] [stdout] 37 |     pub fn edge(a: Self, b: Self) -> Option<Edge> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 54 |     pub fn corner(a: Self, b: Self, c: Self) -> Option<Corner> {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b5c9d9102697095a7a7b58aa699b4a7594508a77a1fafce669b0766f5433d72a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5c9d9102697095a7a7b58aa699b4a7594508a77a1fafce669b0766f5433d72a", kill_on_drop: false }`
[INFO] [stdout] b5c9d9102697095a7a7b58aa699b4a7594508a77a1fafce669b0766f5433d72a