[INFO] updating cached repository https://github.com/sunreef/rust_sph
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] dcbbf6eba5dffd58d527fb277aea1c04ddcd9cac
[INFO] testing sunreef/rust_sph against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsunreef%2Frust_sph" "work/builds/worker-7/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sunreef/rust_sph on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/sunreef/rust_sph
[INFO] finished tweaking git repo https://github.com/sunreef/rust_sph
[INFO] tweaked toml for git repo https://github.com/sunreef/rust_sph written to work/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/sunreef/rust_sph already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-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" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 5782f404bc3bebde3aec538feef603289fa3aaf6e486b2d2c1074e42915f185e
[INFO] running `"docker" "start" "-a" "5782f404bc3bebde3aec538feef603289fa3aaf6e486b2d2c1074e42915f185e"`
[INFO] [stderr]    Compiling serde v1.0.71
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling deflate v0.7.18
[INFO] [stderr]    Compiling stb_truetype v0.2.2
[INFO] [stderr]    Compiling tempfile v3.0.3
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling gfx_core v0.8.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]    Compiling ordered-float v0.5.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling wayland-sys v0.12.5
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling wayland-client v0.12.5
[INFO] [stderr]    Compiling rusttype v0.4.3
[INFO] [stderr]    Compiling png v0.12.0
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling piston2d-graphics v0.26.0
[INFO] [stderr]    Compiling gl v0.10.0
[INFO] [stderr]    Compiling glutin v0.14.0
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]    Compiling wayland-protocols v0.12.5
[INFO] [stderr]    Compiling wayland-kbd v0.13.1
[INFO] [stderr]    Compiling serde_derive v1.0.71
[INFO] [stderr]    Compiling num-derive v0.2.2
[INFO] [stderr]    Compiling wayland-window v0.13.3
[INFO] [stderr]    Compiling jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling winit v0.12.0
[INFO] [stderr]    Compiling image v0.19.0
[INFO] [stderr]    Compiling pistoncore-input v0.21.0
[INFO] [stderr]    Compiling pistoncore-window v0.32.0
[INFO] [stderr]    Compiling gfx v0.17.1
[INFO] [stderr]    Compiling gfx_device_gl v0.15.3
[INFO] [stderr]    Compiling piston-gfx_texture v0.32.0
[INFO] [stderr]    Compiling pistoncore-event_loop v0.37.0
[INFO] [stderr]    Compiling pistoncore-glutin_window v0.47.0
[INFO] [stderr]    Compiling piston v0.37.0
[INFO] [stderr]    Compiling piston2d-gfx_graphics v0.51.0
[INFO] [stderr]    Compiling piston_window v0.80.0
[INFO] [stderr]    Compiling sph_simulation v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(unboxed_closures, fn_traits)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `piston_window::math::*`
[INFO] [stderr]  --> src/traits.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use piston_window::math::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Div`, `Mul`
[INFO] [stderr]  --> src/point.rs:2:26
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::ops::{Add, Sub, Mul, Div, Index, IndexMut};
[INFO] [stderr]   |                          ^^^  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::ops::FnOnce`
[INFO] [stderr]  --> src/kernel.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::ops::FnOnce;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `piston_window::math::*`
[INFO] [stderr]  --> src/particle.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use piston_window::math::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::*`
[INFO] [stderr]  --> src/particle.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use rand::*;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `time::PreciseTime`
[INFO] [stderr]  --> src/world.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use time::PreciseTime;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `piston_window::math::*`
[INFO] [stderr]  --> src/world.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use piston_window::math::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `point::Point2d`
[INFO] [stderr]  --> src/grid.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use point::Point2d;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `sph_simulation`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "5782f404bc3bebde3aec538feef603289fa3aaf6e486b2d2c1074e42915f185e"`
[INFO] running `"docker" "rm" "-f" "5782f404bc3bebde3aec538feef603289fa3aaf6e486b2d2c1074e42915f185e"`
[INFO] [stdout] 5782f404bc3bebde3aec538feef603289fa3aaf6e486b2d2c1074e42915f185e