Dec 19 06:58:37.441 INFO checking tlrobrn/one_d against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 06:58:37.441 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-5/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/tlrobrn/one_d:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 06:58:37.992 INFO [stdout] caf2d102e184d136c9d5100986f93dc0ca9ad652c99e2d8c7fd52611ae3bf122
Dec 19 06:58:38.000 INFO running `"docker" "start" "-a" "caf2d102e184d136c9d5100986f93dc0ca9ad652c99e2d8c7fd52611ae3bf122"`
Dec 19 06:58:39.624 INFO [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
Dec 19 06:58:39.624 INFO [stderr] disables Cargo from automatically inferring other binary targets.
Dec 19 06:58:39.624 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Dec 19 06:58:39.624 INFO [stderr] files will be included as a binary target:
Dec 19 06:58:39.624 INFO [stderr] 
Dec 19 06:58:39.624 INFO [stderr] * /opt/crater/workdir/src/main.rs
Dec 19 06:58:39.624 INFO [stderr] 
Dec 19 06:58:39.624 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Dec 19 06:58:39.624 INFO [stderr] ready to be compiled as a binary target today. You can future-proof yourself
Dec 19 06:58:39.624 INFO [stderr] and disable this warning by adding `autobins = false` to your [package]
Dec 19 06:58:39.624 INFO [stderr] section. You may also move the files to a location where Cargo would not
Dec 19 06:58:39.624 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Dec 19 06:58:39.624 INFO [stderr] 
Dec 19 06:58:39.624 INFO [stderr] For more information on this warning you can consult
Dec 19 06:58:39.624 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Dec 19 06:58:39.624 INFO [stderr] warning: path `/opt/crater/workdir/src/main.rs` was erroneously implicitly accepted for binary `oned`,
Dec 19 06:58:39.624 INFO [stderr] please set bin.path in Cargo.toml
Dec 19 06:58:39.860 INFO [stderr]    Compiling libc v0.2.20
Dec 19 06:58:39.860 INFO [stderr]    Compiling siphasher v0.2.0
Dec 19 06:58:39.860 INFO [stderr]    Compiling serde v0.8.22
Dec 19 06:58:39.860 INFO [stderr]     Checking piston-float v0.2.0
Dec 19 06:58:39.860 INFO [stderr]     Checking adler32 v0.3.0
Dec 19 06:58:39.860 INFO [stderr]     Checking odds v0.2.25
Dec 19 06:58:39.860 INFO [stderr]     Checking shader_version v0.2.1
Dec 19 06:58:39.860 INFO [stderr]     Checking piston-texture v0.5.0
Dec 19 06:58:40.760 INFO [stderr]     Checking regex-syntax v0.4.0
Dec 19 06:58:40.832 INFO [stderr]     Checking read_color v0.1.0
Dec 19 06:58:41.152 INFO [stderr]     Checking linked-hash-map v0.0.10
Dec 19 06:58:41.280 INFO [stderr]     Checking piston-shaders_graphics2d v0.1.0
Dec 19 06:58:41.781 INFO [stderr]    Compiling xml-rs v0.3.5
Dec 19 06:58:42.149 INFO [stderr]    Compiling x11-dl v2.12.0
Dec 19 06:58:43.262 INFO [stderr]     Checking num_cpus v1.2.1
Dec 19 06:58:44.037 INFO [stderr]     Checking thread-id v3.0.0
Dec 19 06:58:44.717 INFO [stderr]     Checking memchr v1.0.1
Dec 19 06:58:44.750 INFO [stderr]     Checking shared_library v0.1.5
Dec 19 06:58:45.452 INFO [stderr]     Checking stb_truetype v0.2.0
Dec 19 06:58:45.544 INFO [stderr]     Checking piston-viewport v0.2.0
Dec 19 06:58:45.603 INFO [stderr]     Checking vecmath v0.2.0
Dec 19 06:58:46.030 INFO [stderr]     Checking deflate v0.7.2
Dec 19 06:58:46.341 INFO [stderr]    Compiling tempfile v2.1.5
Dec 19 06:58:46.734 INFO [stderr]    Compiling phf_shared v0.7.21
Dec 19 06:58:48.578 INFO [stderr]     Checking nodrop v0.1.8
Dec 19 06:58:48.581 INFO [stderr]     Checking thread_local v0.3.2
Dec 19 06:58:49.078 INFO [stderr]    Compiling rand v0.3.15
Dec 19 06:58:49.378 INFO [stderr]     Checking aho-corasick v0.6.1
Dec 19 06:58:49.880 INFO [stderr]     Checking osmesa-sys v0.1.2
Dec 19 06:58:50.568 INFO [stderr]     Checking pistoncore-input v0.15.0
Dec 19 06:58:50.953 INFO [stderr]    Compiling phf v0.7.21
Dec 19 06:58:51.964 INFO [stderr]     Checking rayon v0.6.0
Dec 19 06:58:53.208 INFO [stderr]     Checking arrayvec v0.3.20
Dec 19 06:58:54.300 INFO [stderr]     Checking piston2d-graphics v0.19.0
Dec 19 06:58:57.953 INFO [stderr]     Checking fs2 v0.2.5
Dec 19 06:59:03.341 INFO [stderr]     Checking png v0.6.2
Dec 19 06:59:03.583 INFO [stderr]     Checking regex v0.2.1
Dec 19 06:59:03.826 INFO [stderr]     Checking rusttype v0.2.1
Dec 19 06:59:04.118 INFO [stderr]     Checking memmap v0.4.0
Dec 19 06:59:04.257 INFO [stderr]     Checking pistoncore-window v0.24.0
Dec 19 06:59:05.770 INFO [stderr]     Checking jpeg-decoder v0.1.11
Dec 19 06:59:05.809 INFO [stderr]    Compiling wayland-scanner v0.7.6
Dec 19 06:59:06.210 INFO [stderr]    Compiling gl_generator v0.5.2
Dec 19 06:59:10.293 INFO [stderr]    Compiling phf_generator v0.7.21
Dec 19 06:59:11.564 INFO [stderr]     Checking pistoncore-event_loop v0.27.0
Dec 19 06:59:12.866 INFO [stderr]    Compiling phf_codegen v0.7.21
Dec 19 06:59:13.092 INFO [stderr]     Checking image v0.12.1
Dec 19 06:59:14.900 INFO [stderr]     Checking piston v0.27.0
Dec 19 06:59:14.952 INFO [stderr]    Compiling target_build_utils v0.1.2
Dec 19 06:59:17.028 INFO [stderr]    Compiling wayland-client v0.7.6
Dec 19 06:59:19.232 INFO [stderr]     Checking docopt v0.7.0
Dec 19 06:59:22.163 INFO [stderr]    Compiling glutin v0.7.2
Dec 19 06:59:22.194 INFO [stderr]    Compiling gl v0.6.1
Dec 19 06:59:22.219 INFO [stderr]    Compiling serde_json v0.8.6
Dec 19 06:59:46.980 INFO [stderr]    Compiling libloading v0.3.1
Dec 19 06:59:49.173 INFO [stderr]     Checking dlib v0.3.1
Dec 19 06:59:49.470 INFO [stderr]     Checking wayland-sys v0.7.6
Dec 19 06:59:52.104 INFO [stderr]     Checking piston2d-opengl_graphics v0.37.0
Dec 19 06:59:52.124 INFO [stderr]     Checking wayland-window v0.4.3
Dec 19 06:59:52.124 INFO [stderr]     Checking wayland-kbd v0.6.2
Dec 19 06:59:53.568 INFO [stderr]     Checking winit v0.5.8
Dec 19 06:59:56.215 INFO [stderr]     Checking pistoncore-glutin_window v0.33.0
Dec 19 06:59:56.586 INFO [stderr]     Checking one_d v0.1.0 (/opt/crater/workdir)
Dec 19 06:59:56.900 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:59:56.900 INFO [stderr]    --> src/maze.rs:191:28
Dec 19 06:59:56.900 INFO [stderr]     |
Dec 19 06:59:56.900 INFO [stderr] 191 |     fn try_wall(&mut self, mut dsets: &mut DisjointSets, index: usize, is_east: bool) {
Dec 19 06:59:56.900 INFO [stderr]     |                            ----^^^^^
Dec 19 06:59:56.900 INFO [stderr]     |                            |
Dec 19 06:59:56.900 INFO [stderr]     |                            help: remove this `mut`
Dec 19 06:59:56.900 INFO [stderr]     |
Dec 19 06:59:56.900 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 06:59:56.900 INFO [stderr] 
Dec 19 06:59:57.268 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:59:57.268 INFO [stderr]    --> src/maze.rs:191:28
Dec 19 06:59:57.280 INFO [stderr]     |
Dec 19 06:59:57.280 INFO [stderr] 191 |     fn try_wall(&mut self, mut dsets: &mut DisjointSets, index: usize, is_east: bool) {
Dec 19 06:59:57.280 INFO [stderr]     |                            ----^^^^^
Dec 19 06:59:57.280 INFO [stderr]     |                            |
Dec 19 06:59:57.280 INFO [stderr]     |                            help: remove this `mut`
Dec 19 06:59:57.280 INFO [stderr]     |
Dec 19 06:59:57.280 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 06:59:57.280 INFO [stderr] 
Dec 19 06:59:57.706 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 18s
Dec 19 06:59:58.985 INFO running `"docker" "inspect" "caf2d102e184d136c9d5100986f93dc0ca9ad652c99e2d8c7fd52611ae3bf122"`
Dec 19 06:59:59.310 INFO running `"docker" "rm" "-f" "caf2d102e184d136c9d5100986f93dc0ca9ad652c99e2d8c7fd52611ae3bf122"`
Dec 19 06:59:59.700 INFO [stdout] caf2d102e184d136c9d5100986f93dc0ca9ad652c99e2d8c7fd52611ae3bf122