[INFO] fetching crate rand_jitter 0.2.0...
[INFO] checking rand_jitter-0.2.0 against master#119d2a1a98fe87d4ae6cabf12134a0ef2fb95851 for pr-75180
[INFO] extracting crate rand_jitter 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate rand_jitter 0.2.0 on toolchain 119d2a1a98fe87d4ae6cabf12134a0ef2fb95851
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rand_jitter 0.2.0
[INFO] finished tweaking crates.io crate rand_jitter 0.2.0
[INFO] tweaked toml for crates.io crate rand_jitter 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 973a0a05b77f43c408744e8c36fc0969058794e42c2a0912948d7fdedfeea336
[INFO] running `Command { std: "docker" "start" "-a" "973a0a05b77f43c408744e8c36fc0969058794e42c2a0912948d7fdedfeea336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "973a0a05b77f43c408744e8c36fc0969058794e42c2a0912948d7fdedfeea336", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "973a0a05b77f43c408744e8c36fc0969058794e42c2a0912948d7fdedfeea336", kill_on_drop: false }`
[INFO] [stdout] 973a0a05b77f43c408744e8c36fc0969058794e42c2a0912948d7fdedfeea336
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 642573fa74d19b03fc0d3ac145753a3de989b7f3d0fd5215231b2afc632dd06f
[INFO] running `Command { std: "docker" "start" "-a" "642573fa74d19b03fc0d3ac145753a3de989b7f3d0fd5215231b2afc632dd06f", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_jitter v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0599]: no function or associated item named `new` found for struct `rand_jitter::JitterRng` in the current scope
[INFO] [stdout]   --> benches/mod.rs:10:43
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut rng = rand_jitter::JitterRng::new().unwrap();
[INFO] [stdout]    |                                           ^^^ function or associated item not found in `rand_jitter::JitterRng`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand_jitter::rand_core::RngCore`
[INFO] [stdout]  --> benches/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand_jitter::rand_core::RngCore;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rand_jitter`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "642573fa74d19b03fc0d3ac145753a3de989b7f3d0fd5215231b2afc632dd06f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "642573fa74d19b03fc0d3ac145753a3de989b7f3d0fd5215231b2afc632dd06f", kill_on_drop: false }`
[INFO] [stdout] 642573fa74d19b03fc0d3ac145753a3de989b7f3d0fd5215231b2afc632dd06f