[INFO] updating cached repository https://github.com/samsartor/infloop
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 999f89d287a80e32957861ce42d5a7c27db6579d
[INFO] checking samsartor/infloop against master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsamsartor%2Finfloop" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/samsartor/infloop on toolchain bd0bacc694d7d8175804bb6f690cb846bfa4a9ee
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/samsartor/infloop
[INFO] finished tweaking git repo https://github.com/samsartor/infloop
[INFO] tweaked toml for git repo https://github.com/samsartor/infloop written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/samsartor/infloop already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 154be4a933fc1a98a0452b45d6c6373927cf69cd02641b1d2459b4c8bcb5b399
[INFO] running `"docker" "start" "-a" "154be4a933fc1a98a0452b45d6c6373927cf69cd02641b1d2459b4c8bcb5b399"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking arrayref v0.3.2
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking num-complex v0.1.35
[INFO] [stderr]     Checking num-bigint v0.1.35
[INFO] [stderr]     Checking num-rational v0.1.35
[INFO] [stderr]     Checking num v0.1.36
[INFO] [stderr]     Checking infloop v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/solver.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::NumCast`
[INFO] [stderr]  --> src/solver.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num::NumCast;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std`
[INFO] [stderr]  --> src/solver.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `num::NumCast`
[INFO] [stderr]  --> src/solver.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use num::NumCast;
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `InfLoopSolver`
[INFO] [stderr]  --> src/solver.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct InfLoopSolver {
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Empty`
[INFO] [stderr]   --> src/solver.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Empty,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Line`
[INFO] [stderr]   --> src/solver.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Line,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Corner`
[INFO] [stderr]   --> src/solver.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Corner,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Three`
[INFO] [stderr]   --> src/solver.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Three,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Cross`
[INFO] [stderr]   --> src/solver.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Cross
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `basic_shape`
[INFO] [stderr]   --> src/solver.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn basic_shape(&self) -> [bool; 4] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rot_shape`
[INFO] [stderr]   --> src/solver.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn rot_shape<T: CastInt<usize>>(&self, rot: T) -> [bool; 4] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `InfLoopSolver`
[INFO] [stderr]  --> src/solver.rs:5:12
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct InfLoopSolver {
[INFO] [stderr]   |            ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Empty`
[INFO] [stderr]   --> src/solver.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     Empty,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Line`
[INFO] [stderr]   --> src/solver.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     Line,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Corner`
[INFO] [stderr]   --> src/solver.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     Corner,
[INFO] [stderr]    |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Three`
[INFO] [stderr]   --> src/solver.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     Three,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `Cross`
[INFO] [stderr]   --> src/solver.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     Cross
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `basic_shape`
[INFO] [stderr]   --> src/solver.rs:66:5
[INFO] [stderr]    |
[INFO] [stderr] 66 |     pub fn basic_shape(&self) -> [bool; 4] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `rot_shape`
[INFO] [stderr]   --> src/solver.rs:77:5
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub fn rot_shape<T: CastInt<usize>>(&self, rot: T) -> [bool; 4] {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.04s
[INFO] running `"docker" "inspect" "154be4a933fc1a98a0452b45d6c6373927cf69cd02641b1d2459b4c8bcb5b399"`
[INFO] running `"docker" "rm" "-f" "154be4a933fc1a98a0452b45d6c6373927cf69cd02641b1d2459b4c8bcb5b399"`
[INFO] [stdout] 154be4a933fc1a98a0452b45d6c6373927cf69cd02641b1d2459b4c8bcb5b399