[INFO] cloning repository https://github.com/ShisoftResearch/Nebuchadnezzar
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ShisoftResearch/Nebuchadnezzar" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShisoftResearch%2FNebuchadnezzar"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShisoftResearch%2FNebuchadnezzar'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 807329651c7e0c3b866055b382b2288551cf1281
[INFO] testing ShisoftResearch/Nebuchadnezzar against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShisoftResearch%2FNebuchadnezzar" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ShisoftResearch/Nebuchadnezzar on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/ShisoftResearch/Nebuchadnezzar
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/ShisoftResearch/Nebuchadnezzar
[INFO] tweaked toml for git repo https://github.com/ShisoftResearch/Nebuchadnezzar written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/ShisoftResearch/Nebuchadnezzar already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[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] * /workspace/builds/worker-2/source/tests/transaction.rs
[INFO] [stderr] * /workspace/builds/worker-2/source/tests/types.rs
[INFO] [stderr] * /workspace/builds/worker-2/source/tests/client.rs
[INFO] [stderr] * /workspace/builds/worker-2/source/tests/index.rs
[INFO] [stderr] * /workspace/builds/worker-2/source/tests/chunk.rs
[INFO] [stderr] * /workspace/builds/worker-2/source/tests/cell.rs
[INFO] [stderr] * /workspace/builds/worker-2/source/tests/server.rs
[INFO] [stderr] * /workspace/builds/worker-2/source/tests/cleaner.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]     Blocking waiting for file lock on package cache
[INFO] running `"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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 790b3074ea522f4d326d8910a18afe6f93ff3a4a70344bd002069f2b90ba36d6
[INFO] running `"docker" "start" "-a" "790b3074ea522f4d326d8910a18afe6f93ff3a4a70344bd002069f2b90ba36d6"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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/rustwide/workdir/tests/transaction.rs
[INFO] [stderr] * /opt/rustwide/workdir/tests/types.rs
[INFO] [stderr] * /opt/rustwide/workdir/tests/client.rs
[INFO] [stderr] * /opt/rustwide/workdir/tests/index.rs
[INFO] [stderr] * /opt/rustwide/workdir/tests/chunk.rs
[INFO] [stderr] * /opt/rustwide/workdir/tests/cell.rs
[INFO] [stderr] * /opt/rustwide/workdir/tests/server.rs
[INFO] [stderr] * /opt/rustwide/workdir/tests/cleaner.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]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.54
[INFO] [stderr]    Compiling futures v0.1.27
[INFO] [stderr]    Compiling cc v1.0.36
[INFO] [stderr]    Compiling serde v1.0.91
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling rustc-demangle v0.1.14
[INFO] [stderr]    Compiling fixedbitset v0.1.9
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling scoped-tls v0.1.2
[INFO] [stderr]    Compiling ryu v0.2.8
[INFO] [stderr]    Compiling take v0.1.0
[INFO] [stderr]    Compiling smallvec v0.2.1
[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 backtrace v0.3.15
[INFO] [stderr]    Compiling bincode v1.1.3
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling lock_api v0.1.5
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> /opt/rustwide/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 parking_lot_core v0.3.1
[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] 
[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 `"docker" "inspect" "790b3074ea522f4d326d8910a18afe6f93ff3a4a70344bd002069f2b90ba36d6"`
[INFO] running `"docker" "rm" "-f" "790b3074ea522f4d326d8910a18afe6f93ff3a4a70344bd002069f2b90ba36d6"`
[INFO] [stdout] 790b3074ea522f4d326d8910a18afe6f93ff3a4a70344bd002069f2b90ba36d6