[INFO] fetching crate pest 2.1.3...
[INFO] checking pest-2.1.3 against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate pest 2.1.3 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate pest 2.1.3 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate pest 2.1.3
[INFO] finished tweaking crates.io crate pest 2.1.3
[INFO] tweaked toml for crates.io crate pest 2.1.3 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate pest 2.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "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] 3253a817ebff999110f39154f4c8521901e3c18d999e130c5f1caba72fc3bfbe
[INFO] running `Command { std: "docker" "start" "-a" "3253a817ebff999110f39154f4c8521901e3c18d999e130c5f1caba72fc3bfbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3253a817ebff999110f39154f4c8521901e3c18d999e130c5f1caba72fc3bfbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3253a817ebff999110f39154f4c8521901e3c18d999e130c5f1caba72fc3bfbe", kill_on_drop: false }`
[INFO] [stdout] 3253a817ebff999110f39154f4c8521901e3c18d999e130c5f1caba72fc3bfbe
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8263fe3c02f0c1ceab3881550228a3eb1bd8793b619477ea8774ab0a5b5187fc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8263fe3c02f0c1ceab3881550228a3eb1bd8793b619477ea8774ab0a5b5187fc", kill_on_drop: false }`
[INFO] [stderr]     Checking ucd-trie v0.1.2
[INFO] [stderr]     Checking pest v2.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `std::cmp::Ord::cmp` that must be used
[INFO] [stdout]    --> src/position.rs:608:9
[INFO] [stdout]     |
[INFO] [stdout] 608 |         pos1.cmp(&pos2);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.86s
[INFO] running `Command { std: "docker" "inspect" "8263fe3c02f0c1ceab3881550228a3eb1bd8793b619477ea8774ab0a5b5187fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8263fe3c02f0c1ceab3881550228a3eb1bd8793b619477ea8774ab0a5b5187fc", kill_on_drop: false }`
[INFO] [stdout] 8263fe3c02f0c1ceab3881550228a3eb1bd8793b619477ea8774ab0a5b5187fc