[INFO] cloning repository https://github.com/craccho/cube_rust_example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/craccho/cube_rust_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcraccho%2Fcube_rust_example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcraccho%2Fcube_rust_example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4fe3d27fcf80147a5e0b8e89ca2ba52ee9a6f3f
[INFO] checking craccho/cube_rust_example against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcraccho%2Fcube_rust_example" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/craccho/cube_rust_example on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/craccho/cube_rust_example
[INFO] finished tweaking git repo https://github.com/craccho/cube_rust_example
[INFO] tweaked toml for git repo https://github.com/craccho/cube_rust_example written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/craccho/cube_rust_example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d66e00bee6e860b1743175ef5d89b5e5cb606e3bac2ee7a437c9e47c2083fc71
[INFO] running `Command { std: "docker" "start" "-a" "d66e00bee6e860b1743175ef5d89b5e5cb606e3bac2ee7a437c9e47c2083fc71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d66e00bee6e860b1743175ef5d89b5e5cb606e3bac2ee7a437c9e47c2083fc71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d66e00bee6e860b1743175ef5d89b5e5cb606e3bac2ee7a437c9e47c2083fc71", kill_on_drop: false }`
[INFO] [stdout] d66e00bee6e860b1743175ef5d89b5e5cb606e3bac2ee7a437c9e47c2083fc71
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2eb6aad22a4600f356129c4cad49bb6b42d86da8d4ef98121ca4b9975b2bb2c8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2eb6aad22a4600f356129c4cad49bb6b42d86da8d4ef98121ca4b9975b2bb2c8", kill_on_drop: false }`
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking cube v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `sequence4`
[INFO] [stdout]     --> src/main.rs:1013:9
[INFO] [stdout]      |
[INFO] [stdout] 1013 |     let sequence4 = vec![
[INFO] [stdout]      |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sequence4`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sequence5`
[INFO] [stdout]     --> src/main.rs:1021:9
[INFO] [stdout]      |
[INFO] [stdout] 1021 |     let sequence5 = vec![
[INFO] [stdout]      |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sequence5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sc2`
[INFO] [stdout]     --> src/main.rs:1038:9
[INFO] [stdout]      |
[INFO] [stdout] 1038 |     let sc2 = Perm::from_scramble("R");
[INFO] [stdout]      |         ^^^ help: if this is intentional, prefix it with an underscore: `_sc2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sequence4`
[INFO] [stdout]     --> src/main.rs:1013:9
[INFO] [stdout]      |
[INFO] [stdout] 1013 |     let sequence4 = vec![
[INFO] [stdout]      |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sequence4`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sequence5`
[INFO] [stdout]     --> src/main.rs:1021:9
[INFO] [stdout]      |
[INFO] [stdout] 1021 |     let sequence5 = vec![
[INFO] [stdout]      |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_sequence5`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sc2`
[INFO] [stdout]     --> src/main.rs:1038:9
[INFO] [stdout]      |
[INFO] [stdout] 1038 |     let sc2 = Perm::from_scramble("R");
[INFO] [stdout]      |         ^^^ help: if this is intentional, prefix it with an underscore: `_sc2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `X`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     X, Xi, Y, Yi, Z, Zi,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Xi`
[INFO] [stdout]   --> src/main.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     X, Xi, Y, Yi, Z, Zi,
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Y`
[INFO] [stdout]   --> src/main.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     X, Xi, Y, Yi, Z, Zi,
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Yi`
[INFO] [stdout]   --> src/main.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 20 |     X, Xi, Y, Yi, Z, Zi,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Z`
[INFO] [stdout]   --> src/main.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 |     X, Xi, Y, Yi, Z, Zi,
[INFO] [stdout]    |                   ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Zi`
[INFO] [stdout]   --> src/main.rs:20:22
[INFO] [stdout]    |
[INFO] [stdout] 20 |     X, Xi, Y, Yi, Z, Zi,
[INFO] [stdout]    |                      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]   --> src/main.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn inverse(self) -> Rotation {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotate_sticker`
[INFO] [stdout]   --> src/main.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn rotate_sticker(s: u8, r: &Rotation) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]   --> src/main.rs:95:8
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn rotate(&self, rotation: &Rotation) -> Self {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]    --> src/main.rs:156:8
[INFO] [stdout]     |
[INFO] [stdout] 156 |     fn rotate(&mut self, rotation: &Rotation) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotation`
[INFO] [stdout]    --> src/main.rs:161:8
[INFO] [stdout]     |
[INFO] [stdout] 161 |     fn rotation(&self) -> Vec<Rotation> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reverse`
[INFO] [stdout]    --> src/main.rs:209:8
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn reverse(&self) -> Vec<Rotation> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]    --> src/main.rs:620:8
[INFO] [stdout]     |
[INFO] [stdout] 620 |     fn rotate(&mut self, rotation: &Rotation) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `orient`
[INFO] [stdout]    --> src/main.rs:949:8
[INFO] [stdout]     |
[INFO] [stdout] 949 |     fn orient(&mut self, o: &Orientation) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `X`
[INFO] [stdout]   --> src/main.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     X, Xi, Y, Yi, Z, Zi,
[INFO] [stdout]    |     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Xi`
[INFO] [stdout]   --> src/main.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 |     X, Xi, Y, Yi, Z, Zi,
[INFO] [stdout]    |        ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Y`
[INFO] [stdout]   --> src/main.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     X, Xi, Y, Yi, Z, Zi,
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Yi`
[INFO] [stdout]   --> src/main.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 20 |     X, Xi, Y, Yi, Z, Zi,
[INFO] [stdout]    |               ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Z`
[INFO] [stdout]   --> src/main.rs:20:19
[INFO] [stdout]    |
[INFO] [stdout] 20 |     X, Xi, Y, Yi, Z, Zi,
[INFO] [stdout]    |                   ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Zi`
[INFO] [stdout]   --> src/main.rs:20:22
[INFO] [stdout]    |
[INFO] [stdout] 20 |     X, Xi, Y, Yi, Z, Zi,
[INFO] [stdout]    |                      ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `inverse`
[INFO] [stdout]   --> src/main.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn inverse(self) -> Rotation {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rotate_sticker`
[INFO] [stdout]   --> src/main.rs:36:4
[INFO] [stdout]    |
[INFO] [stdout] 36 | fn rotate_sticker(s: u8, r: &Rotation) -> u8 {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]   --> src/main.rs:95:8
[INFO] [stdout]    |
[INFO] [stdout] 95 |     fn rotate(&self, rotation: &Rotation) -> Self {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]    --> src/main.rs:156:8
[INFO] [stdout]     |
[INFO] [stdout] 156 |     fn rotate(&mut self, rotation: &Rotation) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotation`
[INFO] [stdout]    --> src/main.rs:161:8
[INFO] [stdout]     |
[INFO] [stdout] 161 |     fn rotation(&self) -> Vec<Rotation> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reverse`
[INFO] [stdout]    --> src/main.rs:209:8
[INFO] [stdout]     |
[INFO] [stdout] 209 |     fn reverse(&self) -> Vec<Rotation> {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rotate`
[INFO] [stdout]    --> src/main.rs:620:8
[INFO] [stdout]     |
[INFO] [stdout] 620 |     fn rotate(&mut self, rotation: &Rotation) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `orient`
[INFO] [stdout]    --> src/main.rs:949:8
[INFO] [stdout]     |
[INFO] [stdout] 949 |     fn orient(&mut self, o: &Orientation) {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.16s
[INFO] running `Command { std: "docker" "inspect" "2eb6aad22a4600f356129c4cad49bb6b42d86da8d4ef98121ca4b9975b2bb2c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eb6aad22a4600f356129c4cad49bb6b42d86da8d4ef98121ca4b9975b2bb2c8", kill_on_drop: false }`
[INFO] [stdout] 2eb6aad22a4600f356129c4cad49bb6b42d86da8d4ef98121ca4b9975b2bb2c8