Dec 19 06:58:37.757 INFO checking tlrobrn/one_d against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 06:58:37.757 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 06:58:38.216 INFO [stdout] 223b26f39fc61df0f65d0b818fc5b117184c8384495292429b6c6141b1f26075
Dec 19 06:58:38.218 INFO running `"docker" "start" "-a" "223b26f39fc61df0f65d0b818fc5b117184c8384495292429b6c6141b1f26075"`
Dec 19 06:58:39.756 INFO [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
Dec 19 06:58:39.756 INFO [stderr] disables Cargo from automatically inferring other binary targets.
Dec 19 06:58:39.756 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Dec 19 06:58:39.756 INFO [stderr] files will be included as a binary target:
Dec 19 06:58:39.756 INFO [stderr] 
Dec 19 06:58:39.756 INFO [stderr] * /opt/crater/workdir/src/main.rs
Dec 19 06:58:39.756 INFO [stderr] 
Dec 19 06:58:39.756 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Dec 19 06:58:39.756 INFO [stderr] ready to be compiled as a binary target today. You can future-proof yourself
Dec 19 06:58:39.756 INFO [stderr] and disable this warning by adding `autobins = false` to your [package]
Dec 19 06:58:39.756 INFO [stderr] section. You may also move the files to a location where Cargo would not
Dec 19 06:58:39.756 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Dec 19 06:58:39.756 INFO [stderr] 
Dec 19 06:58:39.756 INFO [stderr] For more information on this warning you can consult
Dec 19 06:58:39.757 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Dec 19 06:58:39.757 INFO [stderr] warning: path `/opt/crater/workdir/src/main.rs` was erroneously implicitly accepted for binary `oned`,
Dec 19 06:58:39.757 INFO [stderr] please set bin.path in Cargo.toml
Dec 19 06:58:39.980 INFO [stderr]    Compiling siphasher v0.2.0
Dec 19 06:58:39.980 INFO [stderr]    Compiling serde v0.8.22
Dec 19 06:58:39.992 INFO [stderr]     Checking piston-float v0.2.0
Dec 19 06:58:39.992 INFO [stderr]     Checking odds v0.2.25
Dec 19 06:58:39.992 INFO [stderr]     Checking shader_version v0.2.1
Dec 19 06:58:39.992 INFO [stderr]     Checking piston-texture v0.5.0
Dec 19 06:58:39.992 INFO [stderr]     Checking linked-hash-map v0.0.10
Dec 19 06:58:39.992 INFO [stderr]     Checking piston-shaders_graphics2d v0.1.0
Dec 19 06:58:40.848 INFO [stderr]    Compiling x11-dl v2.12.0
Dec 19 06:58:41.172 INFO [stderr]     Checking deflate v0.7.2
Dec 19 06:58:41.442 INFO [stderr]     Checking stb_truetype v0.2.0
Dec 19 06:58:41.669 INFO [stderr]    Compiling wayland-scanner v0.7.6
Dec 19 06:58:43.040 INFO [stderr]     Checking piston-viewport v0.2.0
Dec 19 06:58:43.285 INFO [stderr]     Checking vecmath v0.2.0
Dec 19 06:58:44.254 INFO [stderr]     Checking num-bigint v0.1.35
Dec 19 06:58:44.427 INFO [stderr]    Compiling gl v0.6.1
Dec 19 06:58:44.964 INFO [stderr]    Compiling glutin v0.7.2
Dec 19 06:58:44.989 INFO [stderr]    Compiling phf_shared v0.7.21
Dec 19 06:58:46.902 INFO [stderr]     Checking pistoncore-input v0.15.0
Dec 19 06:58:47.646 INFO [stderr]     Checking nodrop v0.1.8
Dec 19 06:58:47.782 INFO [stderr]    Compiling phf_generator v0.7.21
Dec 19 06:58:53.312 INFO [stderr]    Compiling phf v0.7.21
Dec 19 06:58:55.136 INFO [stderr]     Checking piston2d-graphics v0.19.0
Dec 19 06:58:55.148 INFO [stderr]     Checking png v0.6.2
Dec 19 06:58:55.156 INFO [stderr]     Checking docopt v0.7.0
Dec 19 06:58:55.921 INFO [stderr]     Checking arrayvec v0.3.20
Dec 19 06:58:57.468 INFO [stderr]    Compiling phf_codegen v0.7.21
Dec 19 06:58:58.422 INFO [stderr]     Checking num-rational v0.1.35
Dec 19 06:58:59.565 INFO [stderr]    Compiling wayland-client v0.7.6
Dec 19 06:59:00.958 INFO [stderr]     Checking pistoncore-window v0.24.0
Dec 19 06:59:02.130 INFO [stderr]    Compiling target_build_utils v0.1.2
Dec 19 06:59:09.092 INFO [stderr]     Checking rusttype v0.2.1
Dec 19 06:59:09.094 INFO [stderr]     Checking image v0.12.1
Dec 19 06:59:09.096 INFO [stderr]     Checking pistoncore-event_loop v0.27.0
Dec 19 06:59:11.494 INFO [stderr]     Checking piston v0.27.0
Dec 19 06:59:18.800 INFO [stderr]    Compiling serde_json v0.8.6
Dec 19 06:59:33.088 INFO [stderr]     Checking piston2d-opengl_graphics v0.37.0
Dec 19 06:59:35.882 INFO [stderr]    Compiling libloading v0.3.1
Dec 19 06:59:37.862 INFO [stderr]     Checking dlib v0.3.1
Dec 19 06:59:38.087 INFO [stderr]     Checking wayland-sys v0.7.6
Dec 19 06:59:39.739 INFO [stderr]     Checking wayland-kbd v0.6.2
Dec 19 06:59:39.742 INFO [stderr]     Checking wayland-window v0.4.3
Dec 19 06:59:40.838 INFO [stderr]     Checking winit v0.5.8
Dec 19 06:59:43.077 INFO [stderr]     Checking pistoncore-glutin_window v0.33.0
Dec 19 06:59:43.553 INFO [stderr]     Checking one_d v0.1.0 (/opt/crater/workdir)
Dec 19 06:59:44.004 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:59:44.004 INFO [stderr]    --> src/maze.rs:191:28
Dec 19 06:59:44.004 INFO [stderr]     |
Dec 19 06:59:44.004 INFO [stderr] 191 |     fn try_wall(&mut self, mut dsets: &mut DisjointSets, index: usize, is_east: bool) {
Dec 19 06:59:44.004 INFO [stderr]     |                            ----^^^^^
Dec 19 06:59:44.004 INFO [stderr]     |                            |
Dec 19 06:59:44.004 INFO [stderr]     |                            help: remove this `mut`
Dec 19 06:59:44.004 INFO [stderr]     |
Dec 19 06:59:44.004 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 06:59:44.005 INFO [stderr] 
Dec 19 06:59:44.048 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:59:44.048 INFO [stderr]    --> src/maze.rs:191:28
Dec 19 06:59:44.048 INFO [stderr]     |
Dec 19 06:59:44.049 INFO [stderr] 191 |     fn try_wall(&mut self, mut dsets: &mut DisjointSets, index: usize, is_east: bool) {
Dec 19 06:59:44.049 INFO [stderr]     |                            ----^^^^^
Dec 19 06:59:44.049 INFO [stderr]     |                            |
Dec 19 06:59:44.049 INFO [stderr]     |                            help: remove this `mut`
Dec 19 06:59:44.049 INFO [stderr]     |
Dec 19 06:59:44.049 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 06:59:44.049 INFO [stderr] 
Dec 19 06:59:44.871 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
Dec 19 06:59:46.852 INFO running `"docker" "inspect" "223b26f39fc61df0f65d0b818fc5b117184c8384495292429b6c6141b1f26075"`
Dec 19 06:59:47.170 INFO running `"docker" "rm" "-f" "223b26f39fc61df0f65d0b818fc5b117184c8384495292429b6c6141b1f26075"`
Dec 19 06:59:47.548 INFO [stdout] 223b26f39fc61df0f65d0b818fc5b117184c8384495292429b6c6141b1f26075