[INFO] updating cached repository evanisko/2048
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/evanisko/2048
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/evanisko/2048" "work/ex/beta-1.38-1/sources/1.37.0/gh/evanisko/2048"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/evanisko/2048'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/evanisko/2048" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/evanisko/2048"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/evanisko/2048'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 14838bbe0c8215a0ef331c4eb719d009a0b29647
[INFO] sha for GitHub repo evanisko/2048: 14838bbe0c8215a0ef331c4eb719d009a0b29647
[INFO] validating manifest of evanisko/2048 on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of evanisko/2048 on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing evanisko/2048
[INFO] finished frobbing evanisko/2048
[INFO] frobbed toml for evanisko/2048 written to work/ex/beta-1.38-1/sources/1.37.0/gh/evanisko/2048/Cargo.toml
[INFO] started frobbing evanisko/2048
[INFO] finished frobbing evanisko/2048
[INFO] frobbed toml for evanisko/2048 written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/evanisko/2048/Cargo.toml
[INFO] crate evanisko/2048 already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/evanisko/2048/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://bitbucket.org/AdrienChampion/rust_2048.git`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Updating git repository `https://bitbucket.org/AdrienChampion/rust_2048.git`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing evanisko/2048 against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/evanisko/2048:/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=warn" "-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" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] e430db20794060685c1cc1cc677b653930fbd8aba9e2d69dd5996f1b2d837aa4
[INFO] running `"docker" "start" "-a" "e430db20794060685c1cc1cc677b653930fbd8aba9e2d69dd5996f1b2d837aa4"`
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling scopeguard v1.0.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling syn v1.0.3
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling same-file v1.0.5
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]    Compiling downcast-rs v1.0.4
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling smallvec v0.6.10
[INFO] [stderr]    Compiling getrandom v0.1.10
[INFO] [stderr]    Compiling piston-float v1.0.0
[INFO] [stderr]    Compiling either v1.5.2
[INFO] [stderr]    Compiling xdg v2.2.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]    Compiling piston-graphics_api_version v0.2.0
[INFO] [stderr]    Compiling percent-encoding v2.1.0
[INFO] [stderr]    Compiling read_color v1.0.0
[INFO] [stderr]    Compiling piston-texture v0.7.0
[INFO] [stderr]    Compiling interpolation v0.2.0
[INFO] [stderr]    Compiling piston-shaders_graphics2d v0.3.1
[INFO] [stderr]    Compiling ansi_term v0.12.0
[INFO] [stderr]    Compiling find_folder v0.3.0
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling lock_api v0.2.0
[INFO] [stderr]    Compiling walkdir v2.2.9
[INFO] [stderr]    Compiling piston-viewport v1.0.0
[INFO] [stderr]    Compiling vecmath v1.0.0
[INFO] [stderr]    Compiling inflate v0.4.5
[INFO] [stderr]    Compiling gif v0.10.2
[INFO] [stderr]    Compiling shader_version v0.6.0
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling x11-dl v2.18.4
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]    Compiling draw_state v0.8.0
[INFO] [stderr]    Compiling num_cpus v1.10.1
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling shared_library v0.1.9
[INFO] [stderr]    Compiling crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling ordered-float v1.0.2
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling line_drawing v0.7.0
[INFO] [stderr]    Compiling stb_truetype v0.2.6
[INFO] [stderr]    Compiling deflate v0.7.20
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling osmesa-sys v0.1.2
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[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]    Compiling rusttype v0.7.7
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.2
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling png v0.15.0
[INFO] [stderr]    Compiling wayland-client v0.21.13
[INFO] [stderr]    Compiling wayland-protocols v0.21.13
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling gfx_gl v0.5.0
[INFO] [stderr]    Compiling andrew v0.2.1
[INFO] [stderr]    Compiling piston2d-graphics v0.34.0
[INFO] [stderr]    Compiling dlib v0.4.1
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling wayland-sys v0.21.13
[INFO] [stderr]    Compiling lib_2048 v0.1.0 (https://bitbucket.org/AdrienChampion/rust_2048.git?rev=4751eb6#4751eb6b)
[INFO] [stderr]    Compiling wayland-commons v0.21.13
[INFO] [stderr] error[E0432]: unresolved import `rand::IsaacRng`
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/common.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use rand::IsaacRng ;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^ no `IsaacRng` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rand::Rand`
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/common.rs:108:13
[INFO] [stderr]     |
[INFO] [stderr] 108 |         use rand::Rand ;
[INFO] [stderr]     |             ^^^^^^^^^^ no `Rand` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rand::IsaacRng`
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/grid.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rand::IsaacRng ;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^ no `IsaacRng` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `rand::Rand`
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/grid.rs:243:9
[INFO] [stderr]     |
[INFO] [stderr] 243 |     use rand::Rand ;
[INFO] [stderr]     |         ^^^^^^^^^^ no `Rand` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: could not find `StdRng` in `rand`
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/common.rs:106:17
[INFO] [stderr]     |
[INFO] [stderr] 106 |     match rand::StdRng::new() {
[INFO] [stderr]     |                 ^^^^^^ could not find `StdRng` in `rand`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `rand` found for type `u8` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/common.rs:112:26
[INFO] [stderr]     |
[INFO] [stderr] 112 |           let val = (u8::rand(& mut rng) % 26) + 97 ;
[INFO] [stderr]     |                          ^^^^ function or associated item not found in `u8`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `rand` found for type `u8` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/grid.rs:246:34
[INFO] [stderr]     |
[INFO] [stderr] 246 |       let (row, col) = free[(u8::rand(& mut self.rng) as usize) % free.len()] ;
[INFO] [stderr]     |                                  ^^^^ function or associated item not found in `u8`
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no function or associated item named `rand` found for type `u8` in the current scope
[INFO] [stderr]    --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/grid.rs:247:24
[INFO] [stderr]     |
[INFO] [stderr] 247 |       let pow = if u8::rand(& mut self.rng) % 100u8 > 80u8 {
[INFO] [stderr]     |                        ^^^^ function or associated item not found in `u8`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0433, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: Could not compile `lib_2048`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e430db20794060685c1cc1cc677b653930fbd8aba9e2d69dd5996f1b2d837aa4"`
[INFO] running `"docker" "rm" "-f" "e430db20794060685c1cc1cc677b653930fbd8aba9e2d69dd5996f1b2d837aa4"`
[INFO] [stdout] e430db20794060685c1cc1cc677b653930fbd8aba9e2d69dd5996f1b2d837aa4