[INFO] fetching crate drain-rs 0.2.0...
[INFO] checking drain-rs-0.2.0 against beta for pr-78714
[INFO] extracting crate drain-rs 0.2.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate drain-rs 0.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drain-rs 0.2.0
[INFO] finished tweaking crates.io crate drain-rs 0.2.0
[INFO] tweaked toml for crates.io crate drain-rs 0.2.0 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate drain-rs 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05a7ed24092d12d96bea22c008f9646e97dc4793daeda37055bca06861ce7486
[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" "05a7ed24092d12d96bea22c008f9646e97dc4793daeda37055bca06861ce7486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05a7ed24092d12d96bea22c008f9646e97dc4793daeda37055bca06861ce7486", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05a7ed24092d12d96bea22c008f9646e97dc4793daeda37055bca06861ce7486", kill_on_drop: false }`
[INFO] [stdout] 05a7ed24092d12d96bea22c008f9646e97dc4793daeda37055bca06861ce7486
[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" "+beta" "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] f12a46bb088c3c7a4ec50e0d0d5f23f5bea8b86f1a132fbfa9deea1d4561c8ac
[INFO] running `Command { std: "docker" "start" "-a" "f12a46bb088c3c7a4ec50e0d0d5f23f5bea8b86f1a132fbfa9deea1d4561c8ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.6.3
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling bindgen v0.55.1
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]    Compiling clang-sys v1.0.0
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling grok v1.1.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling onig_sys v69.5.1
[INFO] [stderr]     Checking serde_json v1.0.57
[INFO] [stderr]     Checking onig v5.0.0
[INFO] [stderr]     Checking drain-rs v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `is_compiled`
[INFO] [stdout]    --> src/lib.rs:555:8
[INFO] [stdout]     |
[INFO] [stdout] 555 |     fn is_compiled(&self) -> bool {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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 1m 03s
[INFO] running `Command { std: "docker" "inspect" "f12a46bb088c3c7a4ec50e0d0d5f23f5bea8b86f1a132fbfa9deea1d4561c8ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f12a46bb088c3c7a4ec50e0d0d5f23f5bea8b86f1a132fbfa9deea1d4561c8ac", kill_on_drop: false }`
[INFO] [stdout] f12a46bb088c3c7a4ec50e0d0d5f23f5bea8b86f1a132fbfa9deea1d4561c8ac