[INFO] crate dbui-database 0.0.64 is already in cache
[INFO] testing dbui-database-0.0.64 against 1.44.0 for beta-1.45-1
[INFO] extracting crate dbui-database 0.0.64 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate dbui-database 0.0.64 on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate dbui-database 0.0.64
[INFO] finished tweaking crates.io crate dbui-database 0.0.64
[INFO] tweaked toml for crates.io crate dbui-database 0.0.64 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] b552d515658fdf399a6fd3ada36d1d75bdfecc634bba4c360ab0f7332f7c721b
[INFO] running `"docker" "start" "-a" "b552d515658fdf399a6fd3ada36d1d75bdfecc634bba4c360ab0f7332f7c721b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling syn v1.0.30
[INFO] [stderr]    Compiling futures-sink v0.3.5
[INFO] [stderr]    Compiling byte-tools v0.2.0
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling subtle v1.0.0
[INFO] [stderr]    Compiling bytes v0.5.4
[INFO] [stderr]    Compiling safemem v0.2.0
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling fallible-iterator v0.2.0
[INFO] [stderr]    Compiling md5 v0.6.1
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling fallible-iterator v0.1.6
[INFO] [stderr]    Compiling md5 v0.3.8
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling hex v0.2.0
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling debug-helper v0.3.8
[INFO] [stderr]    Compiling base32 v0.4.0
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling futures-channel v0.3.5
[INFO] [stderr]    Compiling base64-url v1.2.0
[INFO] [stderr]    Compiling block-buffer v0.3.3
[INFO] [stderr]    Compiling stringprep v0.1.2
[INFO] [stderr]    Compiling phf v0.8.0
[INFO] [stderr]    Compiling crc-any v2.3.0
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling net2 v0.2.34
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling socket2 v0.3.12
[INFO] [stderr]    Compiling generic-array v0.9.0
[INFO] [stderr]    Compiling base64 v0.6.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling cc v1.0.54
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling crypto-mac v0.7.0
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling mio v0.6.22
[INFO] [stderr]    Compiling geo-types v0.4.3
[INFO] [stderr]    Compiling short-crypt v1.0.17
[INFO] [stderr]    Compiling digest v0.7.6
[INFO] [stderr]    Compiling crypto-mac v0.5.2
[INFO] [stderr]    Compiling hmac v0.7.1
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling sha2 v0.8.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling scheduled-thread-pool v0.2.4
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling sha2 v0.7.1
[INFO] [stderr]    Compiling hmac v0.5.0
[INFO] [stderr]    Compiling r2d2 v0.8.8
[INFO] [stderr]    Compiling postgres-protocol v0.3.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libgit2-sys v0.9.2
[INFO] [stderr]    Compiling postgres-shared v0.4.2
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling eui48 v0.4.6
[INFO] [stderr]    Compiling postgres v0.15.2
[INFO] [stderr]    Compiling postgres-protocol v0.5.0-alpha.2
[INFO] [stderr]    Compiling r2d2_postgres v0.14.0
[INFO] [stderr]    Compiling tokio-util v0.2.0
[INFO] [stderr]    Compiling git2 v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling pin-project-internal v0.4.17
[INFO] [stderr]    Compiling futures-macro v0.3.5
[INFO] [stderr]    Compiling derive_more v0.99.7
[INFO] [stderr]    Compiling pin-project v0.4.17
[INFO] [stderr]    Compiling futures-util v0.3.5
[INFO] [stderr]    Compiling serde v1.0.111
[INFO] [stderr]    Compiling futures-executor v0.3.5
[INFO] [stderr]    Compiling futures v0.3.5
[INFO] [stderr]    Compiling serde_json v1.0.53
[INFO] [stderr]    Compiling toml v0.5.6
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling bincode v1.2.1
[INFO] [stderr]    Compiling postgres-types v0.1.0-alpha.2
[INFO] [stderr]    Compiling built v0.3.2
[INFO] [stderr]    Compiling tokio-postgres v0.5.0-alpha.2
[INFO] [stderr]    Compiling dbui-core v0.0.64
[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/dbui-core-0.0.64/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(option_expect_none)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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/dbui-core-0.0.64/src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(fn_traits)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[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/dbui-core-0.0.64/src/lib.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | #![feature(unboxed_closures)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]    Compiling postgres v0.17.0-alpha.2
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: could not compile `dbui-core`.
[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" "b552d515658fdf399a6fd3ada36d1d75bdfecc634bba4c360ab0f7332f7c721b"`
[INFO] running `"docker" "rm" "-f" "b552d515658fdf399a6fd3ada36d1d75bdfecc634bba4c360ab0f7332f7c721b"`
[INFO] [stdout] b552d515658fdf399a6fd3ada36d1d75bdfecc634bba4c360ab0f7332f7c721b