[INFO] fetching crate roughenough 1.1.8...
[INFO] checking roughenough-1.1.8 against try#8a5e87609850cdd8679aada01eb0f3062f254ca8 for pr-71140
[INFO] extracting crate roughenough 1.1.8 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate roughenough 1.1.8 on toolchain 8a5e87609850cdd8679aada01eb0f3062f254ca8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate roughenough 1.1.8
[INFO] finished tweaking crates.io crate roughenough 1.1.8
[INFO] tweaked toml for crates.io crate roughenough 1.1.8 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate roughenough 1.1.8 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+8a5e87609850cdd8679aada01eb0f3062f254ca8" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 78291e737451b341025c7b71f109d5faeebe4404b62f234b4af76653bb5dbaad
[INFO] running `"docker" "start" "-a" "78291e737451b341025c7b71f109d5faeebe4404b62f234b4af76653bb5dbaad"`
[INFO] [stderr]     Checking regex v1.3.5
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking ring v0.13.5
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking ctrlc v3.1.4
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking tinytemplate v1.0.3
[INFO] [stderr]     Checking rayon-core v1.7.0
[INFO] [stderr]     Checking simple_logger v1.6.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking roughenough v1.1.8 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.105
[INFO] [stderr]     Checking criterion v0.3.1
[INFO] [stderr] warning: unused import: `root_from_paths`
[INFO] [stderr]  --> benches/roughenough-bench.rs:8:39
[INFO] [stderr]   |
[INFO] [stderr] 8 | use roughenough::merkle::{MerkleTree, root_from_paths};
[INFO] [stderr]   |                                       ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 47.68s
[INFO] running `"docker" "inspect" "78291e737451b341025c7b71f109d5faeebe4404b62f234b4af76653bb5dbaad"`
[INFO] running `"docker" "rm" "-f" "78291e737451b341025c7b71f109d5faeebe4404b62f234b4af76653bb5dbaad"`
[INFO] [stdout] 78291e737451b341025c7b71f109d5faeebe4404b62f234b4af76653bb5dbaad