[INFO] crate bit-vec 0.6.1 is already in cache
[INFO] checking bit-vec-0.6.1 against beta-2019-10-27 for pr-65897
[INFO] extracting crate bit-vec 0.6.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate bit-vec 0.6.1 on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate bit-vec 0.6.1
[INFO] finished tweaking crates.io crate bit-vec 0.6.1
[INFO] tweaked toml for crates.io crate bit-vec 0.6.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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=allow" "-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-2019-10-27" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 22c1e35260cb53da4641c6819b663c00a68d9d081798e83ec61ab259ac716d4d
[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" "22c1e35260cb53da4641c6819b663c00a68d9d081798e83ec61ab259ac716d4d"`
[INFO] [stderr]     Checking bit-vec v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved imports `rand::weak_rng`, `rand::XorShiftRng`
[INFO] [stderr]   --> benches/bench.rs:18:17
[INFO] [stderr]    |
[INFO] [stderr] 18 | use rand::{Rng, weak_rng, XorShiftRng};
[INFO] [stderr]    |                 ^^^^^^^^  ^^^^^^^^^^^ no `XorShiftRng` in the root
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 no `weak_rng` in the root
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stderr]   --> benches/bench.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | #![feature(test)]
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> benches/bench.rs:14:1
[INFO] [stderr]    |
[INFO] [stderr] 14 | extern crate rand;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'rustc_private': this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via `Cargo.toml` instead?
[INFO] [stderr]   --> benches/bench.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | use rand::{Rng, weak_rng, XorShiftRng};
[INFO] [stderr]    |            ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: for more information, see https://github.com/rust-lang/rust/issues/27812
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, E0554, E0658.
[INFO] [stderr] For more information about an error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `bit-vec`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "22c1e35260cb53da4641c6819b663c00a68d9d081798e83ec61ab259ac716d4d"`
[INFO] running `"docker" "rm" "-f" "22c1e35260cb53da4641c6819b663c00a68d9d081798e83ec61ab259ac716d4d"`
[INFO] [stdout] 22c1e35260cb53da4641c6819b663c00a68d9d081798e83ec61ab259ac716d4d