[INFO] fetching crate bit-vec 0.6.1...
[INFO] checking bit-vec-0.6.1 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate bit-vec 0.6.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate bit-vec 0.6.1 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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-12/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=forbid" "-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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b53110498e61c4df181ae5fb1cde0d961f057b6ff29a5e878ac6cb8815449da7
[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" "b53110498e61c4df181ae5fb1cde0d961f057b6ff29a5e878ac6cb8815449da7"`
[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[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]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[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]    = help: add `#![feature(rustc_private)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Rng`
[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: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0432, 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" "b53110498e61c4df181ae5fb1cde0d961f057b6ff29a5e878ac6cb8815449da7"`
[INFO] running `"docker" "rm" "-f" "b53110498e61c4df181ae5fb1cde0d961f057b6ff29a5e878ac6cb8815449da7"`
[INFO] [stdout] b53110498e61c4df181ae5fb1cde0d961f057b6ff29a5e878ac6cb8815449da7