[INFO] fetching crate cluFlock 1.2.5...
[INFO] checking cluFlock-1.2.5 against master#3e826bb11228508fbe749e594038d6727208aa94 for pr-82322
[INFO] extracting crate cluFlock 1.2.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cluFlock 1.2.5 on toolchain 3e826bb11228508fbe749e594038d6727208aa94
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cluFlock 1.2.5
[INFO] finished tweaking crates.io crate cluFlock 1.2.5
[INFO] tweaked toml for crates.io crate cluFlock 1.2.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate cluFlock 1.2.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91a145d82bb637c8f809874cfe47a8c3cdf41eae1edc6ccbc4ca9d723f1ae28e
[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" "91a145d82bb637c8f809874cfe47a8c3cdf41eae1edc6ccbc4ca9d723f1ae28e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91a145d82bb637c8f809874cfe47a8c3cdf41eae1edc6ccbc4ca9d723f1ae28e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91a145d82bb637c8f809874cfe47a8c3cdf41eae1edc6ccbc4ca9d723f1ae28e", kill_on_drop: false }`
[INFO] [stdout] 91a145d82bb637c8f809874cfe47a8c3cdf41eae1edc6ccbc4ca9d723f1ae28e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 429b5bfcd69ac9648adca2a30fb49153a917e61190d29d4f7b54a99d7f62dfb7
[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" "429b5bfcd69ac9648adca2a30fb49153a917e61190d29d4f7b54a99d7f62dfb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking cluFlock v1.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused label
[INFO] [stdout]   --> examples/sync_file_fn.rs:19:2
[INFO] [stdout]    |
[INFO] [stdout] 19 |     'begin: for num in 0..200 {
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_labels)]` 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 3.58s
[INFO] running `Command { std: "docker" "inspect" "429b5bfcd69ac9648adca2a30fb49153a917e61190d29d4f7b54a99d7f62dfb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "429b5bfcd69ac9648adca2a30fb49153a917e61190d29d4f7b54a99d7f62dfb7", kill_on_drop: false }`
[INFO] [stdout] 429b5bfcd69ac9648adca2a30fb49153a917e61190d29d4f7b54a99d7f62dfb7