[INFO] crate hs100api 0.1.1 is already in cache
[INFO] checking hs100api-0.1.1 against beta-2019-10-27 for pr-65897
[INFO] extracting crate hs100api 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate hs100api 0.1.1 on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate hs100api 0.1.1
[INFO] finished tweaking crates.io crate hs100api 0.1.1
[INFO] tweaked toml for crates.io crate hs100api 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=allow" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e89a785ce88740c3f60b7b8875134c293cd4710976fba40868d148045edc77b6
[INFO] running `"docker" "start" "-a" "e89a785ce88740c3f60b7b8875134c293cd4710976fba40868d148045edc77b6"`
[INFO] [stderr]     Checking hs100api v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0599]: no method named `split_off` found for type `std::result::Result<std::vec::Vec<u8>, error::Error>` in the current scope
[INFO] [stderr]    --> src/lib.rs:136:38
[INFO] [stderr]     |
[INFO] [stderr] 136 |         let resp = decrypt(&mut data.split_off(4));
[INFO] [stderr]     |                                      ^^^^^^^^^ method not found in `std::result::Result<std::vec::Vec<u8>, error::Error>`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `hs100api`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e89a785ce88740c3f60b7b8875134c293cd4710976fba40868d148045edc77b6"`
[INFO] running `"docker" "rm" "-f" "e89a785ce88740c3f60b7b8875134c293cd4710976fba40868d148045edc77b6"`
[INFO] [stdout] e89a785ce88740c3f60b7b8875134c293cd4710976fba40868d148045edc77b6