Dec 19 06:53:49.398 INFO checking tomc1998/specs_test against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 06:53:49.398 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/tomc1998/specs_test:/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 06:53:49.994 INFO [stdout] aabf96d13337713fa3658b6c112c43b5690ccb8cc3dd7f87295823354e658aca
Dec 19 06:53:49.996 INFO running `"docker" "start" "-a" "aabf96d13337713fa3658b6c112c43b5690ccb8cc3dd7f87295823354e658aca"`
Dec 19 06:53:52.487 INFO [stderr]    Compiling libc v0.2.22
Dec 19 06:53:52.490 INFO [stderr]    Compiling serde_json v0.9.10
Dec 19 06:53:52.490 INFO [stderr]     Checking shared_library v0.1.5
Dec 19 06:53:52.490 INFO [stderr]    Compiling x11-dl v2.13.0
Dec 19 06:53:52.493 INFO [stderr]     Checking cgmath v0.14.1
Dec 19 06:53:52.500 INFO [stderr]     Checking pulse v0.5.3
Dec 19 06:53:52.501 INFO [stderr]    Compiling glium v0.16.0
Dec 19 06:53:52.502 INFO [stderr]     Checking backtrace-sys v0.1.10
Dec 19 06:53:53.289 INFO [stderr]     Checking fs2 v0.2.5
Dec 19 06:53:54.478 INFO [stderr]     Checking tempfile v2.1.5
Dec 19 06:53:54.583 INFO [stderr]     Checking backtrace v0.2.3
Dec 19 06:53:54.914 INFO [stderr]     Checking osmesa-sys v0.1.2
Dec 19 06:53:56.042 INFO [stderr]     Checking specs v0.8.1
Dec 19 06:53:56.241 INFO [stderr]     Checking memmap v0.4.0
Dec 19 06:53:57.300 INFO [stderr]    Compiling rand v0.3.15
Dec 19 06:54:05.400 INFO [stderr]    Compiling phf_generator v0.7.21
Dec 19 06:54:06.324 INFO [stderr]    Compiling phf_codegen v0.7.21
Dec 19 06:54:07.952 INFO [stderr]    Compiling target_build_utils v0.3.1
Dec 19 06:54:29.910 INFO [stderr]    Compiling libloading v0.3.4
Dec 19 06:54:32.537 INFO [stderr]     Checking dlib v0.3.1
Dec 19 06:54:32.792 INFO [stderr]     Checking wayland-sys v0.7.8
Dec 19 06:54:33.099 INFO [stderr]     Checking wayland-client v0.7.8
Dec 19 06:54:34.390 INFO [stderr]     Checking wayland-window v0.4.4
Dec 19 06:54:34.392 INFO [stderr]     Checking wayland-kbd v0.6.3
Dec 19 06:54:35.485 INFO [stderr]     Checking winit v0.5.11
Dec 19 06:54:36.647 INFO [stderr]     Checking glutin v0.7.4
Dec 19 06:54:50.655 INFO [stderr]     Checking specs_test v0.1.0 (/opt/crater/workdir)
Dec 19 06:54:51.048 INFO [stderr] warning: unused import: `Rng`
Dec 19 06:54:51.048 INFO [stderr]   --> src/main.rs:18:12
Dec 19 06:54:51.048 INFO [stderr]    |
Dec 19 06:54:51.048 INFO [stderr] 18 | use rand::{Rng, StdRng};
Dec 19 06:54:51.048 INFO [stderr]    |            ^^^
Dec 19 06:54:51.048 INFO [stderr]    |
Dec 19 06:54:51.048 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 06:54:51.048 INFO [stderr] 
Dec 19 06:54:51.112 INFO [stderr] warning: unused import: `Rng`
Dec 19 06:54:51.112 INFO [stderr]   --> src/main.rs:18:12
Dec 19 06:54:51.112 INFO [stderr]    |
Dec 19 06:54:51.112 INFO [stderr] 18 | use rand::{Rng, StdRng};
Dec 19 06:54:51.113 INFO [stderr]    |            ^^^
Dec 19 06:54:51.113 INFO [stderr]    |
Dec 19 06:54:51.113 INFO [stderr]    = note: #[warn(unused_imports)] on by default
Dec 19 06:54:51.113 INFO [stderr] 
Dec 19 06:54:51.428 INFO [stderr] warning: unused variable: `rng`
Dec 19 06:54:51.428 INFO [stderr]   --> src/main.rs:52:11
Dec 19 06:54:51.428 INFO [stderr]    |
Dec 19 06:54:51.428 INFO [stderr] 52 |   let mut rng = StdRng::new().unwrap();
Dec 19 06:54:51.428 INFO [stderr]    |           ^^^ help: consider using `_rng` instead
Dec 19 06:54:51.428 INFO [stderr]    |
Dec 19 06:54:51.429 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 06:54:51.429 INFO [stderr] 
Dec 19 06:54:51.431 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:54:51.431 INFO [stderr]   --> src/main.rs:52:7
Dec 19 06:54:51.431 INFO [stderr]    |
Dec 19 06:54:51.431 INFO [stderr] 52 |   let mut rng = StdRng::new().unwrap();
Dec 19 06:54:51.431 INFO [stderr]    |       ----^^^
Dec 19 06:54:51.431 INFO [stderr]    |       |
Dec 19 06:54:51.431 INFO [stderr]    |       help: remove this `mut`
Dec 19 06:54:51.432 INFO [stderr]    |
Dec 19 06:54:51.432 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 06:54:51.432 INFO [stderr] 
Dec 19 06:54:51.571 INFO [stderr] warning: unused variable: `rng`
Dec 19 06:54:51.571 INFO [stderr]   --> src/main.rs:52:11
Dec 19 06:54:51.571 INFO [stderr]    |
Dec 19 06:54:51.571 INFO [stderr] 52 |   let mut rng = StdRng::new().unwrap();
Dec 19 06:54:51.571 INFO [stderr]    |           ^^^ help: consider using `_rng` instead
Dec 19 06:54:51.571 INFO [stderr]    |
Dec 19 06:54:51.571 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 06:54:51.571 INFO [stderr] 
Dec 19 06:54:51.580 INFO [stderr] warning: variable does not need to be mutable
Dec 19 06:54:51.580 INFO [stderr]   --> src/main.rs:52:7
Dec 19 06:54:51.580 INFO [stderr]    |
Dec 19 06:54:51.580 INFO [stderr] 52 |   let mut rng = StdRng::new().unwrap();
Dec 19 06:54:51.580 INFO [stderr]    |       ----^^^
Dec 19 06:54:51.580 INFO [stderr]    |       |
Dec 19 06:54:51.580 INFO [stderr]    |       help: remove this `mut`
Dec 19 06:54:51.580 INFO [stderr]    |
Dec 19 06:54:51.580 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 06:54:51.580 INFO [stderr] 
Dec 19 06:54:51.740 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.43s
Dec 19 06:54:53.080 INFO running `"docker" "inspect" "aabf96d13337713fa3658b6c112c43b5690ccb8cc3dd7f87295823354e658aca"`
Dec 19 06:54:53.476 INFO running `"docker" "rm" "-f" "aabf96d13337713fa3658b6c112c43b5690ccb8cc3dd7f87295823354e658aca"`
Dec 19 06:54:53.756 INFO [stdout] aabf96d13337713fa3658b6c112c43b5690ccb8cc3dd7f87295823354e658aca