[INFO] cloning repository https://github.com/dvalnn/rs-totris
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dvalnn/rs-totris" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvalnn%2Frs-totris", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvalnn%2Frs-totris'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 015a72d9f7372adad5981290a4af940b60ff5897
[INFO] checking dvalnn/rs-totris against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdvalnn%2Frs-totris" "/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/dvalnn/rs-totris 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] removed /workspace/builds/worker-1-tc1/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/dvalnn/rs-totris
[INFO] finished tweaking git repo https://github.com/dvalnn/rs-totris
[INFO] tweaked toml for git repo https://github.com/dvalnn/rs-totris written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/dvalnn/rs-totris 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 }`
[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 }`
[INFO] [stdout] 75b4950547b1420dbe015c971e3fa6aca33fe6d7fe0039d95a53573f74464cfe
[INFO] running `Command { std: "docker" "start" "-a" "75b4950547b1420dbe015c971e3fa6aca33fe6d7fe0039d95a53573f74464cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75b4950547b1420dbe015c971e3fa6aca33fe6d7fe0039d95a53573f74464cfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75b4950547b1420dbe015c971e3fa6aca33fe6d7fe0039d95a53573f74464cfe", kill_on_drop: false }`
[INFO] [stdout] 75b4950547b1420dbe015c971e3fa6aca33fe6d7fe0039d95a53573f74464cfe
[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] 37fe9524f722ee467a0af154abb91dfd9513c068c90011aedd42919004e8bf06
[INFO] running `Command { std: "docker" "start" "-a" "37fe9524f722ee467a0af154abb91dfd9513c068c90011aedd42919004e8bf06", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]     Checking slab v0.4.9
[INFO] [stderr]    Compiling sdl2-sys v0.36.0
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking pin-project-lite v0.2.13
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling relative-path v1.9.2
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling cgmath v0.18.0
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling rstest_macros v0.18.2
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling sdl2 v0.36.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking strum v0.26.1
[INFO] [stderr]     Checking approx v0.4.0
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling regex-automata v0.4.5
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling strum_macros v0.26.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking rstest v0.18.2
[INFO] [stderr]     Checking totris v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `Option` is imported redundantly
[INFO] [stdout]  --> src/engine/mod.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{option::Option, time::Duration};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Option` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::isize`
[INFO] [stdout]  --> src/interface/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::isize;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Offset`
[INFO] [stdout]   --> src/interface/mod.rs:13:64
[INFO] [stdout]    |
[INFO] [stdout] 13 |     engine::{Color as EngineColor, Coordinate, Engine, Matrix, Offset},
[INFO] [stdout]    |                                                                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Option` is imported redundantly
[INFO] [stdout]  --> src/engine/mod.rs:7:11
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::{option::Option, time::Duration};
[INFO] [stdout]   |           ^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/ceab6128fa48a616bfd3e3adf4bc80133b8ee223/library/std/src/prelude/mod.rs:148:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Option` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::isize`
[INFO] [stdout]  --> src/interface/mod.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::isize;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Offset`
[INFO] [stdout]   --> src/interface/mod.rs:13:64
[INFO] [stdout]    |
[INFO] [stdout] 13 |     engine::{Color as EngineColor, Coordinate, Engine, Matrix, Offset},
[INFO] [stdout]    |                                                                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `coords`
[INFO] [stdout]    --> src/interface/mod.rs:183:22
[INFO] [stdout]     |
[INFO] [stdout] 183 |         if let Some((coords, color)) = engine.held_cursor_info() {
[INFO] [stdout]     |                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_coords`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]    --> src/interface/mod.rs:183:30
[INFO] [stdout]     |
[INFO] [stdout] 183 |         if let Some((coords, color)) = engine.held_cursor_info() {
[INFO] [stdout]     |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `grid_incd` is never used
[INFO] [stdout]  --> src/engine/geometry.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait GridIncrement: Sized {
[INFO] [stdout]   |           ------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 7 |     fn grid_incd(mut self) -> Self {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Kick` is never used
[INFO] [stdout]  --> src/engine/kick_tables.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait Kick {
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `coords`
[INFO] [stdout]    --> src/interface/mod.rs:183:22
[INFO] [stdout]     |
[INFO] [stdout] 183 |         if let Some((coords, color)) = engine.held_cursor_info() {
[INFO] [stdout]     |                      ^^^^^^ help: if this is intentional, prefix it with an underscore: `_coords`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `color`
[INFO] [stdout]    --> src/interface/mod.rs:183:30
[INFO] [stdout]     |
[INFO] [stdout] 183 |         if let Some((coords, color)) = engine.held_cursor_info() {
[INFO] [stdout]     |                              ^^^^^ help: if this is intentional, prefix it with an underscore: `_color`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `grid_incd` is never used
[INFO] [stdout]  --> src/engine/geometry.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait GridIncrement: Sized {
[INFO] [stdout]   |           ------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 7 |     fn grid_incd(mut self) -> Self {
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Kick` is never used
[INFO] [stdout]  --> src/engine/kick_tables.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub trait Kick {
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.35s
[INFO] running `Command { std: "docker" "inspect" "37fe9524f722ee467a0af154abb91dfd9513c068c90011aedd42919004e8bf06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37fe9524f722ee467a0af154abb91dfd9513c068c90011aedd42919004e8bf06", kill_on_drop: false }`
[INFO] [stdout] 37fe9524f722ee467a0af154abb91dfd9513c068c90011aedd42919004e8bf06