Dec 18 14:03:00.867 INFO checking merkle-1.10.0 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 14:03:00.867 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/merkle/1.10.0:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 14:03:01.220 INFO [stdout] 6da88403f070f70bc05c8f2e8abee671cf54e07d0095431b0e20b73ca0f281e5
Dec 18 14:03:01.226 INFO running `"docker" "start" "-a" "6da88403f070f70bc05c8f2e8abee671cf54e07d0095431b0e20b73ca0f281e5"`
Dec 18 14:03:01.876 INFO [stderr]    Compiling merkle v1.10.0 (/opt/crater/workdir)
Dec 18 14:03:03.508 INFO [stderr] error[E0464]: multiple matching crates for `rand`
Dec 18 14:03:03.508 INFO [stderr]  --> benches/lib.rs:4:1
Dec 18 14:03:03.508 INFO [stderr]   |
Dec 18 14:03:03.508 INFO [stderr] 4 | extern crate rand;
Dec 18 14:03:03.508 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 18 14:03:03.508 INFO [stderr]   |
Dec 18 14:03:03.508 INFO [stderr]   = note: candidates:
Dec 18 14:03:03.508 INFO [stderr]           crate `rand`: /opt/crater/rustup-home/toolchains/0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librand-dca7252242299db6.rlib
Dec 18 14:03:03.508 INFO [stderr]           crate `rand`: /opt/crater/rustup-home/toolchains/0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librand-3b20de38e01b4ae3.rlib
Dec 18 14:03:03.508 INFO [stderr]           crate `rand`: /opt/crater/rustup-home/toolchains/0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt/lib/rustlib/x86_64-unknown-linux-gnu/lib/librand-81c9805d3c832613.rlib
Dec 18 14:03:03.508 INFO [stderr] 
Dec 18 14:03:03.508 INFO [stderr] error[E0463]: can't find crate for `rand`
Dec 18 14:03:03.508 INFO [stderr]  --> benches/lib.rs:4:1
Dec 18 14:03:03.508 INFO [stderr]   |
Dec 18 14:03:03.508 INFO [stderr] 4 | extern crate rand;
Dec 18 14:03:03.508 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^ can't find crate
Dec 18 14:03:03.508 INFO [stderr] 
Dec 18 14:03:03.508 INFO [stderr] error: aborting due to 2 previous errors
Dec 18 14:03:03.508 INFO [stderr] 
Dec 18 14:03:03.509 INFO [stderr] Some errors occurred: E0463, E0464.
Dec 18 14:03:03.509 INFO [stderr] For more information about an error, try `rustc --explain E0463`.
Dec 18 14:03:03.516 INFO [stderr] error: Could not compile `merkle`.
Dec 18 14:03:03.516 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 18 14:03:03.710 INFO [stderr] error: build failed
Dec 18 14:03:04.190 INFO running `"docker" "inspect" "6da88403f070f70bc05c8f2e8abee671cf54e07d0095431b0e20b73ca0f281e5"`
Dec 18 14:03:04.298 INFO running `"docker" "rm" "-f" "6da88403f070f70bc05c8f2e8abee671cf54e07d0095431b0e20b73ca0f281e5"`
Dec 18 14:03:04.416 INFO [stdout] 6da88403f070f70bc05c8f2e8abee671cf54e07d0095431b0e20b73ca0f281e5