Sep 10 12:41:35.215 INFO checking prng-0.1.1 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 12:41:35.215 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 12:41:35.215 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-0/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 12:41:35.382 INFO blam! eb4b4847b5a65b3391e198120256384347391ad873e1e11e9b339398b28f6eaa
Sep 10 12:41:35.384 INFO running `"docker" "start" "-a" "eb4b4847b5a65b3391e198120256384347391ad873e1e11e9b339398b28f6eaa"`
Sep 10 12:41:36.284 INFO kablam! usermod: no changes
Sep 10 12:41:36.311 INFO kablam!     Checking rng_trait v0.1.1
Sep 10 12:41:36.375 INFO kablam!     Checking prng v0.1.1 (file:///source)
Sep 10 12:41:36.417 INFO kablam! error[E0432]: unresolved import `alloc::arc`
Sep 10 12:41:36.417 INFO kablam!  --> src/atomic_prng.rs:1:12
Sep 10 12:41:36.417 INFO kablam!   |
Sep 10 12:41:36.417 INFO kablam! 1 | use alloc::arc::Arc;
Sep 10 12:41:36.417 INFO kablam!   |            ^^^ Could not find `arc` in `alloc`
Sep 10 12:41:36.417 INFO kablam! 
Sep 10 12:41:36.447 INFO kablam! error: aborting due to previous error
Sep 10 12:41:36.447 INFO kablam! 
Sep 10 12:41:36.447 INFO kablam! For more information about this error, try `rustc --explain E0432`.
Sep 10 12:41:36.452 INFO kablam! error: Could not compile `prng`.
Sep 10 12:41:36.452 INFO kablam! warning: build failed, waiting for other jobs to finish...
Sep 10 12:41:36.515 INFO kablam! error[E0432]: unresolved import `alloc::arc`
Sep 10 12:41:36.515 INFO kablam!  --> src/atomic_prng.rs:1:12
Sep 10 12:41:36.515 INFO kablam!   |
Sep 10 12:41:36.515 INFO kablam! 1 | use alloc::arc::Arc;
Sep 10 12:41:36.515 INFO kablam!   |            ^^^ Could not find `arc` in `alloc`
Sep 10 12:41:36.515 INFO kablam! 
Sep 10 12:41:36.551 INFO kablam! error: aborting due to previous error
Sep 10 12:41:36.551 INFO kablam! 
Sep 10 12:41:36.551 INFO kablam! For more information about this error, try `rustc --explain E0432`.
Sep 10 12:41:36.559 INFO kablam! error: Could not compile `prng`.
Sep 10 12:41:36.559 INFO kablam! 
Sep 10 12:41:36.559 INFO kablam! To learn more, run the command again with --verbose.
Sep 10 12:41:36.560 INFO kablam! su: No module specific data is present
Sep 10 12:41:37.059 INFO running `"docker" "rm" "-f" "eb4b4847b5a65b3391e198120256384347391ad873e1e11e9b339398b28f6eaa"`
Sep 10 12:41:37.113 INFO blam! eb4b4847b5a65b3391e198120256384347391ad873e1e11e9b339398b28f6eaa