[INFO] cloning repository https://github.com/evanisko/2048
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/evanisko/2048" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fevanisko%2F2048", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fevanisko%2F2048'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 14838bbe0c8215a0ef331c4eb719d009a0b29647
[INFO] checking evanisko/2048 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fevanisko%2F2048" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/evanisko/2048 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/evanisko/2048
[INFO] finished tweaking git repo https://github.com/evanisko/2048
[INFO] tweaked toml for git repo https://github.com/evanisko/2048 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/evanisko/2048 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-13/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://bitbucket.org/AdrienChampion/rust_2048.git`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ca2e6dc3fc5073e53fc47132489e95156e9ec5c0821fa5a93274575e600eb47
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2ca2e6dc3fc5073e53fc47132489e95156e9ec5c0821fa5a93274575e600eb47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ca2e6dc3fc5073e53fc47132489e95156e9ec5c0821fa5a93274575e600eb47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ca2e6dc3fc5073e53fc47132489e95156e9ec5c0821fa5a93274575e600eb47", kill_on_drop: false }`
[INFO] [stdout] 2ca2e6dc3fc5073e53fc47132489e95156e9ec5c0821fa5a93274575e600eb47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 030c8b32b02ec46965fe4857526459e8e2c21f3f987684aad918f9ec0a676f69
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "030c8b32b02ec46965fe4857526459e8e2c21f3f987684aad918f9ec0a676f69", kill_on_drop: false }`
[INFO] [stderr]    Compiling xml-rs v0.8.3
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling nix v0.14.1
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking piston-graphics_api_version v1.0.0
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]    Compiling cc v1.0.66
[INFO] [stderr]     Checking piston-texture v0.8.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking piston-shaders_graphics2d v0.4.0
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking find_folder v0.3.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling x11-dl v2.18.5
[INFO] [stderr]     Checking libloading v0.6.6
[INFO] [stderr]     Checking shader_version v0.7.0
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking getrandom v0.2.0
[INFO] [stderr]     Checking raw-window-handle v0.3.3
[INFO] [stderr]     Checking shared_library v0.1.9
[INFO] [stderr]     Checking stb_truetype v0.3.1
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]     Checking piston2d-graphics v0.39.0
[INFO] [stderr]     Checking dlib v0.4.2
[INFO] [stderr]     Checking draw_state v0.8.0
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stderr]    Compiling gl_generator v0.10.0
[INFO] [stderr]     Checking osmesa-sys v0.1.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.0
[INFO] [stderr]     Checking wayland-sys v0.21.13
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking gfx_core v0.9.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling wayland-scanner v0.21.13
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]     Checking rand v0.8.0
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking ordered-float v1.1.1
[INFO] [stderr]     Checking line_drawing v0.7.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rusttype v0.8.3
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]    Compiling gfx_gl v0.6.1
[INFO] [stderr]    Compiling gl v0.11.0
[INFO] [stderr]     Checking num-iter v0.1.42
[INFO] [stderr]     Checking rusttype v0.7.9
[INFO] [stderr]     Checking lib_2048 v0.1.0 (https://bitbucket.org/AdrienChampion/rust_2048.git?rev=4751eb6#4751eb6b)
[INFO] [stderr]     Checking andrew v0.2.1
[INFO] [stdout] error[E0432]: unresolved import `rand::IsaacRng`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/common.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::IsaacRng ;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ no `IsaacRng` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rand::Rand`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/common.rs:108:13
[INFO] [stdout]     |
[INFO] [stdout] 108 |         use rand::Rand ;
[INFO] [stdout]     |             ^^^^^^^^^^ no `Rand` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rand::IsaacRng`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/grid.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::IsaacRng ;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ no `IsaacRng` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `rand::Rand`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/grid.rs:243:9
[INFO] [stdout]     |
[INFO] [stdout] 243 |     use rand::Rand ;
[INFO] [stdout]     |         ^^^^^^^^^^ no `Rand` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `StdRng` in `rand`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/common.rs:106:17
[INFO] [stdout]     |
[INFO] [stdout] 106 |     match rand::StdRng::new() {
[INFO] [stdout]     |                 ^^^^^^ not found in `rand`
[INFO] [stdout]     |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]     |
[INFO] [stdout] 3   | use rand::rngs::StdRng;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `rand` found for type `u8` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/common.rs:112:26
[INFO] [stdout]     |
[INFO] [stdout] 112 |           let val = (u8::rand(& mut rng) % 26) + 97 ;
[INFO] [stdout]     |                          ^^^^ function or associated item not found in `u8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `rand` found for type `u8` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/grid.rs:246:34
[INFO] [stdout]     |
[INFO] [stdout] 246 |       let (row, col) = free[(u8::rand(& mut self.rng) as usize) % free.len()] ;
[INFO] [stdout]     |                                  ^^^^ function or associated item not found in `u8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `rand` found for type `u8` in the current scope
[INFO] [stdout]    --> /opt/rustwide/cargo-home/git/checkouts/rust_2048-e4b2572afb50011c/4751eb6/src/grid.rs:247:24
[INFO] [stdout]     |
[INFO] [stdout] 247 |       let pow = if u8::rand(& mut self.rng) % 100u8 > 80u8 {
[INFO] [stdout]     |                        ^^^^ function or associated item not found in `u8`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lib_2048`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "030c8b32b02ec46965fe4857526459e8e2c21f3f987684aad918f9ec0a676f69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "030c8b32b02ec46965fe4857526459e8e2c21f3f987684aad918f9ec0a676f69", kill_on_drop: false }`
[INFO] [stdout] 030c8b32b02ec46965fe4857526459e8e2c21f3f987684aad918f9ec0a676f69