[INFO] crate dribble 1.0.0 is already in cache
[INFO] testing dribble-1.0.0 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate dribble 1.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate dribble 1.0.0 on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate dribble 1.0.0
[INFO] finished tweaking crates.io crate dribble 1.0.0
[INFO] tweaked toml for crates.io crate dribble 1.0.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2020-06-03" "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] 41b8fec86b9bc99bf1fb15f5f4535d6e938d3f5071e6d327a9771e1ca3830ed0
[INFO] running `"docker" "start" "-a" "41b8fec86b9bc99bf1fb15f5f4535d6e938d3f5071e6d327a9771e1ca3830ed0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling dribble v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved imports `rand::distributions::IndependentSample`, `rand::distributions::Range`
[INFO] [stderr]  --> src/lib.rs:8:27
[INFO] [stderr]   |
[INFO] [stderr] 8 | use rand::distributions::{IndependentSample, Range};
[INFO] [stderr]   |                           ^^^^^^^^^^^^^^^^^  ^^^^^ no `Range` in `distributions`
[INFO] [stderr]   |                           |
[INFO] [stderr]   |                           no `IndependentSample` in `distributions`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:50:30
[INFO] [stderr]    |
[INFO] [stderr] 50 |             self.available = try!(self.source.read(&mut self.buffer));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:113:13
[INFO] [stderr]     |
[INFO] [stderr] 113 |             try!(self.dest.write(&buf[written..written+bytes]));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error; 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `dribble`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "41b8fec86b9bc99bf1fb15f5f4535d6e938d3f5071e6d327a9771e1ca3830ed0"`
[INFO] running `"docker" "rm" "-f" "41b8fec86b9bc99bf1fb15f5f4535d6e938d3f5071e6d327a9771e1ca3830ed0"`
[INFO] [stdout] 41b8fec86b9bc99bf1fb15f5f4535d6e938d3f5071e6d327a9771e1ca3830ed0