[INFO] updating cached repository ShisoftResearch/Nebuchadnezzar
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/ShisoftResearch/Nebuchadnezzar
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/ShisoftResearch/Nebuchadnezzar" "work/ex/beta-1.38-1/sources/1.37.0/gh/ShisoftResearch/Nebuchadnezzar"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/ShisoftResearch/Nebuchadnezzar'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/ShisoftResearch/Nebuchadnezzar" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ShisoftResearch/Nebuchadnezzar"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ShisoftResearch/Nebuchadnezzar'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 807329651c7e0c3b866055b382b2288551cf1281
[INFO] sha for GitHub repo ShisoftResearch/Nebuchadnezzar: 807329651c7e0c3b866055b382b2288551cf1281
[INFO] validating manifest of ShisoftResearch/Nebuchadnezzar on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of ShisoftResearch/Nebuchadnezzar on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing ShisoftResearch/Nebuchadnezzar
[INFO] removed 1 missing tests
[INFO] finished frobbing ShisoftResearch/Nebuchadnezzar
[INFO] frobbed toml for ShisoftResearch/Nebuchadnezzar written to work/ex/beta-1.38-1/sources/1.37.0/gh/ShisoftResearch/Nebuchadnezzar/Cargo.toml
[INFO] started frobbing ShisoftResearch/Nebuchadnezzar
[INFO] removed 1 missing tests
[INFO] finished frobbing ShisoftResearch/Nebuchadnezzar
[INFO] frobbed toml for ShisoftResearch/Nebuchadnezzar written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ShisoftResearch/Nebuchadnezzar/Cargo.toml
[INFO] crate ShisoftResearch/Nebuchadnezzar already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing ShisoftResearch/Nebuchadnezzar against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/ShisoftResearch/Nebuchadnezzar:/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] ba4ac7cb26947302c38dc9c53cf37ddb6b51285f4e82cd3af507615b6d064669
[INFO] running `"docker" "start" "-a" "ba4ac7cb26947302c38dc9c53cf37ddb6b51285f4e82cd3af507615b6d064669"`
[INFO] [stderr] warning: An explicit [[test]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other test targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a test target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/crater/workdir/tests/cell.rs
[INFO] [stderr] * /opt/crater/workdir/tests/cleaner.rs
[INFO] [stderr] * /opt/crater/workdir/tests/client.rs
[INFO] [stderr] * /opt/crater/workdir/tests/types.rs
[INFO] [stderr] * /opt/crater/workdir/tests/transaction.rs
[INFO] [stderr] * /opt/crater/workdir/tests/chunk.rs
[INFO] [stderr] * /opt/crater/workdir/tests/server.rs
[INFO] [stderr] * /opt/crater/workdir/tests/tests.rs
[INFO] [stderr] * /opt/crater/workdir/tests/index.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a test target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autotests = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]    Compiling futures-await-await-macro v0.1.2 (https://github.com/vorot93/futures-await.git#8b181226)
[INFO] [stderr]    Compiling static_assertions v0.3.1
[INFO] [stderr]    Compiling bincode v1.1.3
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling tokio-service v0.1.0
[INFO] [stderr]    Compiling tokio-sync v0.1.5
[INFO] [stderr]    Compiling tokio-timer v0.1.2
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling tokio-executor v0.1.7
[INFO] [stderr]    Compiling parking_lot_core v0.3.1
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/lock_api-0.1.5/src/lib.rs:88:34
[INFO] [stderr]    |
[INFO] [stderr] 88 | #![cfg_attr(feature = "nightly", feature(const_fn))]
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `lock_api`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "ba4ac7cb26947302c38dc9c53cf37ddb6b51285f4e82cd3af507615b6d064669"`
[INFO] running `"docker" "rm" "-f" "ba4ac7cb26947302c38dc9c53cf37ddb6b51285f4e82cd3af507615b6d064669"`
[INFO] [stdout] ba4ac7cb26947302c38dc9c53cf37ddb6b51285f4e82cd3af507615b6d064669