[INFO] fetching crate Aaron 0.0.1...
[INFO] testing Aaron-0.0.1 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate Aaron 0.0.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate Aaron 0.0.1 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate Aaron 0.0.1
[INFO] finished tweaking crates.io crate Aaron 0.0.1
[INFO] tweaked toml for crates.io crate Aaron 0.0.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", 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] 9820bd0704e845d6937612386f4f913cc08c62cbf7b2805b36b2df7021a23226
[INFO] running `Command { std: "docker" "start" "-a" "9820bd0704e845d6937612386f4f913cc08c62cbf7b2805b36b2df7021a23226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9820bd0704e845d6937612386f4f913cc08c62cbf7b2805b36b2df7021a23226", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9820bd0704e845d6937612386f4f913cc08c62cbf7b2805b36b2df7021a23226", kill_on_drop: false }`
[INFO] [stdout] 9820bd0704e845d6937612386f4f913cc08c62cbf7b2805b36b2df7021a23226
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7e9ff232bb3bad2c5f3a25e73ce5a8e7fccc261142b411ebca60f634499eb1c
[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" "e7e9ff232bb3bad2c5f3a25e73ce5a8e7fccc261142b411ebca60f634499eb1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling Aaron v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "e7e9ff232bb3bad2c5f3a25e73ce5a8e7fccc261142b411ebca60f634499eb1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7e9ff232bb3bad2c5f3a25e73ce5a8e7fccc261142b411ebca60f634499eb1c", kill_on_drop: false }`
[INFO] [stdout] e7e9ff232bb3bad2c5f3a25e73ce5a8e7fccc261142b411ebca60f634499eb1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--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] ae1e9bcee432e26ccfb6942dfeddd38eae9ea59b1453f97e3f4c084ccfefa7f0
[INFO] running `Command { std: "docker" "start" "-a" "ae1e9bcee432e26ccfb6942dfeddd38eae9ea59b1453f97e3f4c084ccfefa7f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling Aaron v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `XEngine`
[INFO] [stdout]  --> tests/BaseTest.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub use XEngine;
[INFO] [stdout]   |         ^^^^^^^ no external crate `XEngine`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Aaron`
[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" "ae1e9bcee432e26ccfb6942dfeddd38eae9ea59b1453f97e3f4c084ccfefa7f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae1e9bcee432e26ccfb6942dfeddd38eae9ea59b1453f97e3f4c084ccfefa7f0", kill_on_drop: false }`
[INFO] [stdout] ae1e9bcee432e26ccfb6942dfeddd38eae9ea59b1453f97e3f4c084ccfefa7f0