[INFO] fetching crate competitive-programming-rs 14.0.0...
[INFO] checking competitive-programming-rs-14.0.0 against try#f88e9a4452e792c29632101b348a1df9876d45cd for pr-70087
[INFO] extracting crate competitive-programming-rs 14.0.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate competitive-programming-rs 14.0.0 on toolchain f88e9a4452e792c29632101b348a1df9876d45cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f88e9a4452e792c29632101b348a1df9876d45cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate competitive-programming-rs 14.0.0
[INFO] finished tweaking crates.io crate competitive-programming-rs 14.0.0
[INFO] tweaked toml for crates.io crate competitive-programming-rs 14.0.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f88e9a4452e792c29632101b348a1df9876d45cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+f88e9a4452e792c29632101b348a1df9876d45cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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=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" "+f88e9a4452e792c29632101b348a1df9876d45cd" "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] ae14eb2036cc2565e0891db75258d3cf6b78631d86346d626fcc8bb7d6bc4e69
[INFO] running `"docker" "start" "-a" "ae14eb2036cc2565e0891db75258d3cf6b78631d86346d626fcc8bb7d6bc4e69"`
[INFO] [stderr]     Checking competitive-programming-rs v14.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: field is never read: `is_reversed`
[INFO] [stderr]   --> src/graph/min_cost_flow.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |         is_reversed: bool,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `is_reversed`
[INFO] [stderr]   --> src/graph/min_cost_flow.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |         is_reversed: bool,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `"docker" "inspect" "ae14eb2036cc2565e0891db75258d3cf6b78631d86346d626fcc8bb7d6bc4e69"`
[INFO] running `"docker" "rm" "-f" "ae14eb2036cc2565e0891db75258d3cf6b78631d86346d626fcc8bb7d6bc4e69"`
[INFO] [stdout] ae14eb2036cc2565e0891db75258d3cf6b78631d86346d626fcc8bb7d6bc4e69