[INFO] updating cached repository vsinha/sim-physarum
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/vsinha/sim-physarum
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/vsinha/sim-physarum" "work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/vsinha/sim-physarum"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/vsinha/sim-physarum'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vsinha/sim-physarum" "work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/vsinha/sim-physarum"`
[INFO] [stderr] Cloning into 'work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/vsinha/sim-physarum'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0a427c9666f6998b555948c57e095c62fc1ff7dc
[INFO] sha for GitHub repo vsinha/sim-physarum: 0a427c9666f6998b555948c57e095c62fc1ff7dc
[INFO] validating manifest of vsinha/sim-physarum on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vsinha/sim-physarum on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vsinha/sim-physarum
[INFO] finished frobbing vsinha/sim-physarum
[INFO] frobbed toml for vsinha/sim-physarum written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/gh/vsinha/sim-physarum/Cargo.toml
[INFO] started frobbing vsinha/sim-physarum
[INFO] finished frobbing vsinha/sim-physarum
[INFO] frobbed toml for vsinha/sim-physarum written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/vsinha/sim-physarum/Cargo.toml
[INFO] crate vsinha/sim-physarum already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking vsinha/sim-physarum against try#18481b65f318e0b4b20c0fc61340054701719d6c for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-2/try#18481b65f318e0b4b20c0fc61340054701719d6c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/gh/vsinha/sim-physarum:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2fcb93097ff6bdadd6f3440ce2c6a17777fbc7dd226694b2a38ca2042883ef9d
[INFO] running `"docker" "start" "-a" "2fcb93097ff6bdadd6f3440ce2c6a17777fbc7dd226694b2a38ca2042883ef9d"`
[INFO] [stderr]    Compiling rustc-demangle v0.1.13
[INFO] [stderr]    Compiling pulldown-cmark v0.2.0
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling bytecount v0.4.0
[INFO] [stderr]     Checking seahash v3.0.6
[INFO] [stderr]    Compiling cgmath v0.17.0
[INFO] [stderr]     Checking mint v0.5.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling minimp3-sys v0.3.1
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]     Checking uuid v0.6.5
[INFO] [stderr]     Checking matrixmultiply v0.2.2
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]     Checking toml v0.4.10
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking slice-deque v0.1.16
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking approx v0.3.1
[INFO] [stderr]     Checking ogg v0.7.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.15
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]     Checking alsa-sys v0.1.2
[INFO] [stderr]     Checking libudev-sys v0.1.4
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking lewton v0.9.4
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking cpal v0.8.2
[INFO] [stderr]    Compiling euclid_macros v0.1.0
[INFO] [stderr]    Compiling smart-default v0.3.0
[INFO] [stderr]     Checking wayland-sys v0.21.11
[INFO] [stderr]     Checking minimp3 v0.3.2
[INFO] [stderr]     Checking rusttype v0.7.5
[INFO] [stderr]     Checking cgmath v0.14.1
[INFO] [stderr]     Checking nix v0.10.0
[INFO] [stderr]     Checking gfx_core v0.9.0
[INFO] [stderr]     Checking wayland-commons v0.21.11
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling glutin v0.19.0
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking alga v0.8.2
[INFO] [stderr]    Compiling tempdir v0.3.7
[INFO] [stderr]     Checking andrew v0.2.0
[INFO] [stderr]     Checking glyph_brush_layout v0.1.5
[INFO] [stderr]     Checking image v0.21.0
[INFO] [stderr]     Checking wayland-client v0.21.11
[INFO] [stderr]    Compiling error-chain v0.12.0
[INFO] [stderr]     Checking euclid v0.19.6
[INFO] [stderr]     Checking zip v0.5.1
[INFO] [stderr]     Checking rodio v0.8.1
[INFO] [stderr]     Checking glyph_brush v0.2.4
[INFO] [stderr]     Checking gilrs v0.6.3
[INFO] [stderr]     Checking wayland-protocols v0.21.11
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]     Checking nalgebra v0.17.2
[INFO] [stderr]     Checking lyon_geom v0.12.4
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking lyon_path v0.13.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]     Checking lyon_tessellation v0.13.1
[INFO] [stderr]     Checking lyon_algorithms v0.13.1
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.5
[INFO] [stderr]     Checking lyon v0.13.1
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]    Compiling cargo_metadata v0.6.4
[INFO] [stderr]     Checking winit v0.18.1
[INFO] [stderr]    Compiling skeptic v0.13.4
[INFO] [stderr]    Compiling ggez v0.5.0-rc.1
[INFO] [stderr]     Checking gfx_device_gl v0.16.0
[INFO] [stderr]     Checking gfx v0.18.0
[INFO] [stderr]     Checking gfx_window_glutin v0.29.0
[INFO] [stderr] warning[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.17.2/src/base/cg.rs:297:44
[INFO] [stderr]     |
[INFO] [stderr] 297 |                 self[(j, i)] += shift[j] * self[(D::dim() - 1, i)];
[INFO] [stderr]     |                 ---------------------------^^^^-------------------
[INFO] [stderr]     |                 |                          |
[INFO] [stderr]     |                 |                          immutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow later used here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]     Checking simthing v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elem`
[INFO] [stderr]   --> src/trail.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |         for elem in self.data.iter() {
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_elem`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `target_mesh`
[INFO] [stderr]   --> src/main.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     target_mesh: ggez::graphics::Mesh,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `trail_mesh`
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     trail_mesh: ggez::graphics::Mesh,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `elem`
[INFO] [stderr]   --> src/trail.rs:54:13
[INFO] [stderr]    |
[INFO] [stderr] 54 |         for elem in self.data.iter() {
[INFO] [stderr]    |             ^^^^ help: consider prefixing with an underscore: `_elem`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `target_mesh`
[INFO] [stderr]   --> src/main.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     target_mesh: ggez::graphics::Mesh,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `trail_mesh`
[INFO] [stderr]   --> src/main.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     trail_mesh: ggez::graphics::Mesh,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3m 09s
[INFO] running `"docker" "inspect" "2fcb93097ff6bdadd6f3440ce2c6a17777fbc7dd226694b2a38ca2042883ef9d"`
[INFO] running `"docker" "rm" "-f" "2fcb93097ff6bdadd6f3440ce2c6a17777fbc7dd226694b2a38ca2042883ef9d"`
[INFO] [stdout] 2fcb93097ff6bdadd6f3440ce2c6a17777fbc7dd226694b2a38ca2042883ef9d