[INFO] updating cached repository https://github.com/vrinek/memory-game
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] 76a57c4760e7c8e7b444bc642dcbcdd3951b75b2
[INFO] checking vrinek/memory-game against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvrinek%2Fmemory-game" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vrinek/memory-game on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/vrinek/memory-game
[INFO] finished tweaking git repo https://github.com/vrinek/memory-game
[INFO] tweaked toml for git repo https://github.com/vrinek/memory-game written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/vrinek/memory-game already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 2dd374422f92ac8267bc1437ab3ab671c852951c6a9fb992518dd952c986229f
[INFO] running `"docker" "start" "-a" "2dd374422f92ac8267bc1437ab3ab671c852951c6a9fb992518dd952c986229f"`
[INFO] [stderr]     Checking piston-float v1.0.0
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking piston-graphics_api_version v0.2.0
[INFO] [stderr]     Checking piston-texture v0.8.0
[INFO] [stderr]     Checking nix v0.14.1
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking raw-window-handle v0.3.0
[INFO] [stderr]     Checking getrandom v0.1.12
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]     Checking stb_truetype v0.3.0
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking piston-viewport v1.0.0
[INFO] [stderr]     Checking vecmath v1.0.0
[INFO] [stderr]     Checking shader_version v0.6.0
[INFO] [stderr]     Checking png v0.15.0
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]     Checking rusttype v0.8.1
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking pistoncore-input v0.28.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking piston2d-graphics v0.35.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.16
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.5
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.3
[INFO] [stderr]    Compiling gfx_gl v0.6.0
[INFO] [stderr]     Checking image v0.22.3
[INFO] [stderr]     Checking pistoncore-window v0.44.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.49.0
[INFO] [stderr]     Checking piston v0.49.0
[INFO] [stderr]     Checking wayland-commons v0.21.13
[INFO] [stderr]     Checking wayland-client v0.21.13
[INFO] [stderr]     Checking wayland-protocols v0.21.13
[INFO] [stderr]     Checking smithay-client-toolkit v0.4.6
[INFO] [stderr]     Checking winit v0.19.4
[INFO] [stderr]     Checking glutin v0.21.1
[INFO] [stderr]     Checking pistoncore-glutin_window v0.63.0
[INFO] [stderr]     Checking gfx v0.18.2
[INFO] [stderr]     Checking gfx_device_gl v0.16.2
[INFO] [stderr]     Checking piston-gfx_texture v0.40.0
[INFO] [stderr]     Checking piston2d-gfx_graphics v0.66.0
[INFO] [stderr]     Checking piston_window v0.105.0
[INFO] [stderr]     Checking memory-game v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `rand::XorShiftRng`
[INFO] [stderr]  --> src/deck.rs:3:30
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]   |                              ^^^^^^^^^^^ no `XorShiftRng` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `weak_rng` in crate `rand`
[INFO] [stderr]   --> src/deck.rs:55:19
[INFO] [stderr]    |
[INFO] [stderr] 55 |             rand::weak_rng()
[INFO] [stderr]    |                   ^^^^^^^^ not found in `rand`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Rng`, `SeedableRng`
[INFO] [stderr]  --> src/deck.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]   |            ^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rand::XorShiftRng`
[INFO] [stderr]  --> src/deck.rs:3:30
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]   |                              ^^^^^^^^^^^ no `XorShiftRng` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: `piston_window::PistonWindow` is not an iterator
[INFO] [stderr]   --> src/app.rs:25:18
[INFO] [stderr]    |
[INFO] [stderr] 25 |         for e in window {
[INFO] [stderr]    |                  ^^^^^^ `piston_window::PistonWindow` is not an iterator
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::iter::Iterator` is not implemented for `piston_window::PistonWindow`
[INFO] [stderr]    = note: required by `std::iter::IntoIterator::into_iter`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `weak_rng` in crate `rand`
[INFO] [stderr]   --> src/deck.rs:55:19
[INFO] [stderr]    |
[INFO] [stderr] 55 |             rand::weak_rng()
[INFO] [stderr]    |                   ^^^^^^^^ not found in `rand`
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Rng`, `SeedableRng`
[INFO] [stderr]  --> src/deck.rs:3:12
[INFO] [stderr]   |
[INFO] [stderr] 3 | use rand::{Rng, SeedableRng, XorShiftRng};
[INFO] [stderr]   |            ^^^  ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0425, E0432.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `memory-game`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0277]: `piston_window::PistonWindow` is not an iterator
[INFO] [stderr]   --> src/app.rs:25:18
[INFO] [stderr]    |
[INFO] [stderr] 25 |         for e in window {
[INFO] [stderr]    |                  ^^^^^^ `piston_window::PistonWindow` is not an iterator
[INFO] [stderr]    |
[INFO] [stderr]    = help: the trait `std::iter::Iterator` is not implemented for `piston_window::PistonWindow`
[INFO] [stderr]    = note: required by `std::iter::IntoIterator::into_iter`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0425, E0432.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `memory-game`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2dd374422f92ac8267bc1437ab3ab671c852951c6a9fb992518dd952c986229f"`
[INFO] running `"docker" "rm" "-f" "2dd374422f92ac8267bc1437ab3ab671c852951c6a9fb992518dd952c986229f"`
[INFO] [stdout] 2dd374422f92ac8267bc1437ab3ab671c852951c6a9fb992518dd952c986229f