[INFO] updating cached repository Altefore/2048-GUI
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Altefore/2048-GUI
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Altefore/2048-GUI" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/Altefore/2048-GUI"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/Altefore/2048-GUI'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Altefore/2048-GUI" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/Altefore/2048-GUI"`
[INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/Altefore/2048-GUI'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d6aa4e6f6da3cc591dbf798b0f285899b93d3757
[INFO] sha for GitHub repo Altefore/2048-GUI: d6aa4e6f6da3cc591dbf798b0f285899b93d3757
[INFO] validating manifest of Altefore/2048-GUI on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Altefore/2048-GUI on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Altefore/2048-GUI
[INFO] finished frobbing Altefore/2048-GUI
[INFO] frobbed toml for Altefore/2048-GUI written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/Altefore/2048-GUI/Cargo.toml
[INFO] started frobbing Altefore/2048-GUI
[INFO] finished frobbing Altefore/2048-GUI
[INFO] frobbed toml for Altefore/2048-GUI written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/Altefore/2048-GUI/Cargo.toml
[INFO] crate Altefore/2048-GUI already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/Altefore/2048-GUI/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" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "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" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "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" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking Altefore/2048-GUI against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-1/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/Altefore/2048-GUI:/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" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] da2c990b199dff06de14f747168888eec9ae4e685e220d5c113ebfb3aa48b92d
[INFO] running `"docker" "start" "-a" "da2c990b199dff06de14f747168888eec9ae4e685e220d5c113ebfb3aa48b92d"`
[INFO] [stderr]     Checking spin v0.5.0
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]     Checking same-file v1.0.4
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]     Checking piston-float v1.0.0
[INFO] [stderr]     Checking piston-graphics_api_version v0.2.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking interpolation v0.2.0
[INFO] [stderr]    Compiling libloading v0.5.1
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.2.0
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking walkdir v2.2.8
[INFO] [stderr]     Checking gif v0.10.2
[INFO] [stderr]     Checking piston-viewport v1.0.0
[INFO] [stderr]     Checking vecmath v1.0.0
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking shader_version v0.6.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.5
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking getrandom v0.1.6
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking stb_truetype v0.2.6
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]    Compiling xml-rs v0.7.0
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]     Checking ordered-float v1.0.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.7.1
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]     Checking dlib v0.4.1
[INFO] [stderr]     Checking rusttype v0.7.7
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling gl_generator v0.11.0
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking png v0.14.1
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stderr]     Checking piston2d-graphics v0.32.0
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]     Checking lib_2048 v0.1.0 (https://bitbucket.org/AdrienChampion/rust_2048.git?rev=3791048#3791048f)
[INFO] [stderr] error[E0432]: unresolved import `rand::IsaacRng`
[INFO] [stderr]  --> /opt/crater/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/3791048/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/3791048/src/common.rs:107:13
[INFO] [stderr]     |
[INFO] [stderr] 107 |         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/3791048/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/3791048/src/grid.rs:228:9
[INFO] [stderr]     |
[INFO] [stderr] 228 |     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/3791048/src/common.rs:105:17
[INFO] [stderr]     |
[INFO] [stderr] 105 |     match rand::StdRng::new() {
[INFO] [stderr]     |                 ^^^^^^ could not find `StdRng` in `rand`
[INFO] [stderr] 
[INFO] [stderr]    Compiling gl v0.11.0
[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/3791048/src/common.rs:111:26
[INFO] [stderr]     |
[INFO] [stderr] 111 |           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/3791048/src/grid.rs:231:34
[INFO] [stderr]     |
[INFO] [stderr] 231 |       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/3791048/src/grid.rs:232:24
[INFO] [stderr]     |
[INFO] [stderr] 232 |       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" "da2c990b199dff06de14f747168888eec9ae4e685e220d5c113ebfb3aa48b92d"`
[INFO] running `"docker" "rm" "-f" "da2c990b199dff06de14f747168888eec9ae4e685e220d5c113ebfb3aa48b92d"`
[INFO] [stdout] da2c990b199dff06de14f747168888eec9ae4e685e220d5c113ebfb3aa48b92d