[INFO] fetching crate symbolic-common 8.0.0...
[INFO] testing symbolic-common-8.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate symbolic-common 8.0.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate symbolic-common 8.0.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate symbolic-common 8.0.0
[INFO] finished tweaking crates.io crate symbolic-common 8.0.0
[INFO] tweaked toml for crates.io crate symbolic-common 8.0.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 40d74e706852d05a484971b80acad2257356468f525c46f8001d776db91fa692
[INFO] running `Command { std: "docker" "start" "-a" "40d74e706852d05a484971b80acad2257356468f525c46f8001d776db91fa692", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40d74e706852d05a484971b80acad2257356468f525c46f8001d776db91fa692", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40d74e706852d05a484971b80acad2257356468f525c46f8001d776db91fa692", kill_on_drop: false }`
[INFO] [stdout] 40d74e706852d05a484971b80acad2257356468f525c46f8001d776db91fa692
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3302e634de6b3e777f66388d238a91d57ba6c87e529c4922835578d7823e76a9
[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" "3302e634de6b3e777f66388d238a91d57ba6c87e529c4922835578d7823e76a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling debugid v0.7.2
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling symbolic-common v8.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.81s
[INFO] running `Command { std: "docker" "inspect" "3302e634de6b3e777f66388d238a91d57ba6c87e529c4922835578d7823e76a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3302e634de6b3e777f66388d238a91d57ba6c87e529c4922835578d7823e76a9", kill_on_drop: false }`
[INFO] [stdout] 3302e634de6b3e777f66388d238a91d57ba6c87e529c4922835578d7823e76a9
[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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 043e6364ae2a304fa8c0744e0f44ae88e14e8956f0e479040dec46950d89430e
[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" "043e6364ae2a304fa8c0744e0f44ae88e14e8956f0e479040dec46950d89430e", kill_on_drop: false }`
[INFO] [stderr]    Compiling symbolic-common v8.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `symbolic_testutils`
[INFO] [stdout]    --> src/path.rs:524:9
[INFO] [stdout]     |
[INFO] [stdout] 524 |     use symbolic_testutils::fixture;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^ use of undeclared crate or module `symbolic_testutils`
[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 `symbolic-common`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "043e6364ae2a304fa8c0744e0f44ae88e14e8956f0e479040dec46950d89430e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "043e6364ae2a304fa8c0744e0f44ae88e14e8956f0e479040dec46950d89430e", kill_on_drop: false }`
[INFO] [stdout] 043e6364ae2a304fa8c0744e0f44ae88e14e8956f0e479040dec46950d89430e