[INFO] fetching crate nano_arena 0.5.2...
[INFO] checking nano_arena-0.5.2 against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] extracting crate nano_arena 0.5.2 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate nano_arena 0.5.2 on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nano_arena 0.5.2
[INFO] finished tweaking crates.io crate nano_arena 0.5.2
[INFO] tweaked toml for crates.io crate nano_arena 0.5.2 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff3d42a4bfeb1f9c23ca3b869c4f295e74b9492a9b9b7f42bba8aa3e56d5153b
[INFO] running `Command { std: "docker" "start" "-a" "ff3d42a4bfeb1f9c23ca3b869c4f295e74b9492a9b9b7f42bba8aa3e56d5153b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff3d42a4bfeb1f9c23ca3b869c4f295e74b9492a9b9b7f42bba8aa3e56d5153b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff3d42a4bfeb1f9c23ca3b869c4f295e74b9492a9b9b7f42bba8aa3e56d5153b", kill_on_drop: false }`
[INFO] [stdout] ff3d42a4bfeb1f9c23ca3b869c4f295e74b9492a9b9b7f42bba8aa3e56d5153b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d601a5f6ca1139b2f9f660b13fe77f0ef7798d36af1a1228a7be1e383334691
[INFO] running `Command { std: "docker" "start" "-a" "1d601a5f6ca1139b2f9f660b13fe77f0ef7798d36af1a1228a7be1e383334691", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]     Checking nano_arena v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking plotters-svg v0.3.1
[INFO] [stderr]     Checking crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.1
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking rayon v1.5.1
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead.
[INFO] [stdout]  --> benches/benches.rs:1:61
[INFO] [stdout]   |
[INFO] [stdout] 1 | use criterion::{criterion_group, criterion_main, Criterion, ParameterizedBenchmark, Throughput};
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead.
[INFO] [stdout]   --> benches/benches.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         ParameterizedBenchmark::new(
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead.
[INFO] [stdout]   --> benches/benches.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |         ParameterizedBenchmark::new(
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead.
[INFO] [stdout]   --> benches/benches.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |         ParameterizedBenchmark::new(
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead.
[INFO] [stdout]   --> benches/benches.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         ParameterizedBenchmark::new(
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead.
[INFO] [stdout]   --> benches/benches.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         ParameterizedBenchmark::new(
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated struct `criterion::ParameterizedBenchmark`: Please use BenchmarkGroups instead.
[INFO] [stdout]    --> benches/benches.rs:115:9
[INFO] [stdout]     |
[INFO] [stdout] 115 |         ParameterizedBenchmark::new(
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `criterion::Criterion::<M>::bench`: Please use BenchmarkGroups instead.
[INFO] [stdout]   --> benches/benches.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 |     c.bench(
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `criterion::Criterion::<M>::bench`: Please use BenchmarkGroups instead.
[INFO] [stdout]   --> benches/benches.rs:53:7
[INFO] [stdout]    |
[INFO] [stdout] 53 |     c.bench(
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `criterion::Criterion::<M>::bench`: Please use BenchmarkGroups instead.
[INFO] [stdout]   --> benches/benches.rs:63:7
[INFO] [stdout]    |
[INFO] [stdout] 63 |     c.bench(
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `criterion::Criterion::<M>::bench`: Please use BenchmarkGroups instead.
[INFO] [stdout]   --> benches/benches.rs:80:7
[INFO] [stdout]    |
[INFO] [stdout] 80 |     c.bench(
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `criterion::Criterion::<M>::bench`: Please use BenchmarkGroups instead.
[INFO] [stdout]   --> benches/benches.rs:97:7
[INFO] [stdout]    |
[INFO] [stdout] 97 |     c.bench(
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `criterion::Criterion::<M>::bench`: Please use BenchmarkGroups instead.
[INFO] [stdout]    --> benches/benches.rs:113:7
[INFO] [stdout]     |
[INFO] [stdout] 113 |     c.bench(
[INFO] [stdout]     |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `insert_and_delete`
[INFO] [stdout]   --> benches/benches.rs:20:4
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn insert_and_delete<T: Default>(n: usize) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.41s
[INFO] running `Command { std: "docker" "inspect" "1d601a5f6ca1139b2f9f660b13fe77f0ef7798d36af1a1228a7be1e383334691", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d601a5f6ca1139b2f9f660b13fe77f0ef7798d36af1a1228a7be1e383334691", kill_on_drop: false }`
[INFO] [stdout] 1d601a5f6ca1139b2f9f660b13fe77f0ef7798d36af1a1228a7be1e383334691