[INFO] crate dribble 1.0.0 is already in cache
[INFO] testing dribble-1.0.0 against 1.44.0 for beta-1.45-1
[INFO] extracting crate dribble 1.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate dribble 1.0.0 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 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-4/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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] [stdout] e25bf99e59471412c16cd84a10608053b350ea5a3c338fc7d42ae460655b368b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "e25bf99e59471412c16cd84a10608053b350ea5a3c338fc7d42ae460655b368b"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "e25bf99e59471412c16cd84a10608053b350ea5a3c338fc7d42ae460655b368b"`
[INFO] running `"docker" "rm" "-f" "e25bf99e59471412c16cd84a10608053b350ea5a3c338fc7d42ae460655b368b"`
[INFO] [stdout] e25bf99e59471412c16cd84a10608053b350ea5a3c338fc7d42ae460655b368b