[INFO] fetching crate solstice-2d 0.2.4...
[INFO] checking solstice-2d-0.2.4 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] extracting crate solstice-2d 0.2.4 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate solstice-2d 0.2.4 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 crates.io crate solstice-2d 0.2.4
[INFO] finished tweaking crates.io crate solstice-2d 0.2.4
[INFO] tweaked toml for crates.io crate solstice-2d 0.2.4 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate solstice-2d 0.2.4 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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] f9a8c8197960ff9c997c127dbfb378c61f436d71c1c49575d09a8903ccf3dfc4
[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" "f9a8c8197960ff9c997c127dbfb378c61f436d71c1c49575d09a8903ccf3dfc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9a8c8197960ff9c997c127dbfb378c61f436d71c1c49575d09a8903ccf3dfc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9a8c8197960ff9c997c127dbfb378c61f436d71c1c49575d09a8903ccf3dfc4", kill_on_drop: false }`
[INFO] [stdout] f9a8c8197960ff9c997c127dbfb378c61f436d71c1c49575d09a8903ccf3dfc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 81af479bf7b73d0ab3ef2016bedddcbbd64b423b628ac56590d2ed1d0ec6d81e
[INFO] running `Command { std: "docker" "start" "-a" "81af479bf7b73d0ab3ef2016bedddcbbd64b423b628ac56590d2ed1d0ec6d81e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.1
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[INFO] [stderr]    Compiling glutin_egl_sys v0.1.5
[INFO] [stderr]    Compiling glutin_glx_sys v0.1.7
[INFO] [stderr]     Checking glyph_brush_layout v0.2.1
[INFO] [stderr]     Checking rusttype v0.8.3
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[INFO] [stderr]    Compiling wayland-client v0.23.6
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[INFO] [stderr]     Checking calloop v0.4.4
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[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.12
[INFO] [stderr]    Compiling solstice-derive v0.1.0
[INFO] [stderr]     Checking solstice v0.1.10
[INFO] [stderr]     Checking smithay-client-toolkit v0.6.6
[INFO] [stderr]     Checking nalgebra v0.23.1
[INFO] [stderr]     Checking winit v0.22.2
[INFO] [stderr]     Checking glutin v0.24.1
[INFO] [stderr]     Checking solstice-2d v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `rand`
[INFO] [stdout]    --> examples/wfc.rs:264:13
[INFO] [stdout]     |
[INFO] [stdout] 264 |         use rand::SeedableRng;
[INFO] [stdout]     |             ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `rand`
[INFO] [stdout]   --> examples/wfc.rs:33:27
[INFO] [stdout]    |
[INFO] [stdout] 33 |     fn forbid<W: Wrap, R: rand::Rng>(&mut self, fi: &mut ForbidInterface<W>, rng: &mut R) {
[INFO] [stdout]    |                           ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `rand`
[INFO] [stdout]    --> examples/wfc.rs:177:12
[INFO] [stdout]     |
[INFO] [stdout] 177 |         R: rand::Rng + Send + Sync + Clone,
[INFO] [stdout]     |            ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `rand`
[INFO] [stdout]    --> examples/wfc.rs:271:18
[INFO] [stdout]     |
[INFO] [stdout] 271 |             &mut rand::rngs::StdRng::from_entropy(),
[INFO] [stdout]     |                  ^^^^ use of undeclared crate or module `rand`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `solstice-2d`
[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" "81af479bf7b73d0ab3ef2016bedddcbbd64b423b628ac56590d2ed1d0ec6d81e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81af479bf7b73d0ab3ef2016bedddcbbd64b423b628ac56590d2ed1d0ec6d81e", kill_on_drop: false }`
[INFO] [stdout] 81af479bf7b73d0ab3ef2016bedddcbbd64b423b628ac56590d2ed1d0ec6d81e