[INFO] fetching crate gelf 0.5.0...
[INFO] checking gelf-0.5.0 against beta for pr-78714
[INFO] extracting crate gelf 0.5.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate gelf 0.5.0 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 gelf 0.5.0
[INFO] finished tweaking crates.io crate gelf 0.5.0
[INFO] tweaked toml for crates.io crate gelf 0.5.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate gelf 0.5.0 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-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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 64cd2866f44856e6f7f82e9ac18de189e65bdc431d78cadfac9983b17f67e8b9
[INFO] running `Command { std: "docker" "start" "-a" "64cd2866f44856e6f7f82e9ac18de189e65bdc431d78cadfac9983b17f67e8b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "64cd2866f44856e6f7f82e9ac18de189e65bdc431d78cadfac9983b17f67e8b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64cd2866f44856e6f7f82e9ac18de189e65bdc431d78cadfac9983b17f67e8b9", kill_on_drop: false }`
[INFO] [stdout] 64cd2866f44856e6f7f82e9ac18de189e65bdc431d78cadfac9983b17f67e8b9
[INFO] running `Command { std: "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" "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] [stdout] 9652a21e51eb57c28c277f7b77e163a462fd1575b071c8a8f080426af52218d6
[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" "9652a21e51eb57c28c277f7b77e163a462fd1575b071c8a8f080426af52218d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling proc-macro2 v0.4.20
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling ryu v0.2.6
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking oorandom v11.1.0
[INFO] [stderr]     Checking log v0.4.5
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling libdeflater v0.2.0
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]    Compiling generator v0.6.20
[INFO] [stderr]    Compiling quote v0.6.8
[INFO] [stderr]    Compiling syn v0.15.13
[INFO] [stderr]     Checking criterion-plot v0.4.1
[INFO] [stderr]     Checking plotters v0.2.12
[INFO] [stderr]     Checking loom v0.2.14
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]    Compiling synstructure v0.10.0
[INFO] [stderr]     Checking failure v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling serde_with_macros v1.1.0
[INFO] [stderr]     Checking serde v1.0.104
[INFO] [stderr]     Checking serde_json v1.0.32
[INFO] [stderr]     Checking bstr v0.2.11
[INFO] [stderr]     Checking serde_with v1.4.0
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]     Checking tinytemplate v1.0.3
[INFO] [stderr]     Checking gelf v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.3.1
[INFO] [stderr]     Checking jemallocator v0.3.2
[INFO] [stdout] warning: function is never used: `random_messages_iterator`
[INFO] [stdout]   --> benches/benchmarks.rs:25:4
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn random_messages_iterator<'a>() -> impl std::iter::Iterator<Item=Message<'a>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_messages`
[INFO] [stdout]   --> benches/benchmarks.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn generate_messages<'a>(size: usize, characters: usize) -> Vec<Message<'a>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 45s
[INFO] running `Command { std: "docker" "inspect" "9652a21e51eb57c28c277f7b77e163a462fd1575b071c8a8f080426af52218d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9652a21e51eb57c28c277f7b77e163a462fd1575b071c8a8f080426af52218d6", kill_on_drop: false }`
[INFO] [stdout] 9652a21e51eb57c28c277f7b77e163a462fd1575b071c8a8f080426af52218d6